repos_ecs/其他2015后/gdi+各种绘图源码/WalkLtDemo/WalkLtDemo设计实例.cpp

//Download by http://www.NewXing.com
// WalkLtDemo设计实例.cpp : implementation of the CWalkLtDemoView class
//

#include "stdafx.h"
#include "WalkLtDemo.h"

#include "WalkLtDemoDoc.h"
#include "WalkLtDemoView.h"

#include "WalkLtDemoHelp.h"

#include "math.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

//屏蔽 4244 编译警告
#pragma warning( disable : 4244 )


extern Rect MyClient;



void menuItem2_Click()
{
	Graphics &g=GetGraphics();
	g.Clear(Color::Black);
	Bitmap bitmap(L"demo.bmp");
	int iWidth = bitmap.GetWidth();
	int iHeight = bitmap.GetHeight();

	//初始化色彩变换矩阵
	ColorMatrix colorMatrix=
	{
		0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};
	ImageAttributes imageAtt;

	//从0到1进行修改色彩变换矩阵主对角线上的数值
	//使三种基准色的饱和度渐增
	for(float i=0.0f;i<=1.0f;i+=0.02f)
	{	
		colorMatrix.m[0][0]=i;
		colorMatrix.m[1][1]=i;
		colorMatrix.m[2][2]=i;
		colorMatrix.m[3][3]=i;
		//设置色彩校正矩阵
		imageAtt.SetColorMatrix(&colorMatrix,
			ColorMatrixFlagsDefault, ColorAdjustTypeBitmap);
		//绘制图片
		g.DrawImage(
			&bitmap, Rect(0, 0, iWidth, iHeight), 
			0,0,        
			iWidth,iHeight,
			UnitPixel, 
			&imageAtt);
	}

	MyDrawString(g, "下面演示淡出效果...", Font(L"Arial",12),
		SolidBrush(Color::White), Point(20,iHeight+20));

	//从1到0进行修改色彩变换矩阵主对角线上的数值
	//依次减少每种色彩分量
	for(i=1.0f;i>=0.0f;i-=0.02f)
	{	
		colorMatrix.m[0][0]=i;
		colorMatrix.m[1][1]=i;
		colorMatrix.m[2][2]=i;
		colorMatrix.m[3][3]=i;
		//设置色彩校正矩阵
		imageAtt.SetColorMatrix(&colorMatrix,
			ColorMatrixFlagsDefault,ColorAdjustTypeBitmap);
		//绘制图片
		g.DrawImage(
			&bitmap, Rect(0, 0, iWidth, iHeight), 
			0,0,
			iWidth,iHeight,
			UnitPixel, 
			&imageAtt);
	}

	MyDrawString(g, "完毕", Font(L"Arial",12),
		SolidBrush(Color::White), Point(20,iHeight+40));
}

		
//
void GrayScale_Click()
{
	Graphics &g=GetGraphics();
	g.Clear(Color::White);
	Bitmap image(L"head.bmp");			
	int Width =image.GetWidth()-1;
	int Height =image.GetHeight()-1;

	//绘制原图
	g.DrawImage(&image,0, 0);
	g.TranslateTransform((REAL)image.GetWidth(),0.f);

	/*image2、image3分别用来保存最大值法
	和加权平均法处理的灰度图像*/
	Bitmap *image2=image.Clone(Rect(0,0,image.GetWidth(), image.GetHeight()),PixelFormatDontCare);
	Bitmap *image3=image.Clone(Rect(0,0,image.GetWidth(), image.GetHeight()),PixelFormatDontCare);

	Color color;
	//使用平均值进行灰度处理
	for(int i=Width; i>=0;i--)
		for( int j=Height; j>=0;j--)
		{
			image.GetPixel(i,j, &color);	
			//求出平均三个色彩分量的平均值
			int middle=(color.GetR()+color.GetG()+color.GetB())/3;
			Color colorResult(255,middle,middle,middle);
			image.SetPixel(i,j, colorResult);
		}	
	//重新绘制灰度化图
	g.DrawImage(&image, Rect(0, 0, Width, Height));

	//在新位置显示最大值法进行灰度处理的结果
	g.TranslateTransform((REAL)image.GetWidth(),0.f);
	//使用最大值法进行灰度处理
	for(i=Width; i>=0;i--)
	{
		for(int j=Height; j>=0;j--)
		{
			image2->GetPixel(i,j, &color);
			int tmp=color.GetR()>color.GetG()? color.GetR():color.GetG();
			int maxcolor=tmp>color.GetB()? tmp:color.GetB();
			Color colorResult(255,maxcolor,maxcolor,maxcolor);
			//设置处理后的灰度信息
			image2->SetPixel(i, j, colorResult);
		}
	}

	//重新绘制灰度化图
	g.DrawImage(image2, Rect(0, 0, Width, Height));
	//在第二行绘制图片
	g.ResetTransform();
	g.TranslateTransform(0.f, (REAL)image.GetHeight());

	//使用加权平均法进行灰度处理	
	for(i=Width; i>=0;i--)
	{
		for(int j=Height; j>=0;j--)
		{
			image3->GetPixel(i, j, &color);	
			int R=(int)(0.3f*color.GetR());
			int G=(int)(0.59f*color.GetG());
			int B=(int)(0.11f*color.GetB());

			Color colorResult(255,R,G,B);
			//设置处理后的灰度信息
			image3->SetPixel(i, j, colorResult);
		}	
	}
	//重新绘制灰度化图
	g.DrawImage(image3, Rect(0, 0, Width, Height));
	
	g.TranslateTransform((REAL)image.GetWidth(),0.f);
	//灰度的还原演示，还原使用最大值法处理的灰度图像image2
	for(i=Width; i>0;i--)
	{
		for(int j=Height; j>0;j--)
		{
			image2->GetPixel(i,j, &color);
			int R=color.GetR();
			int G=color.GetG();
			int B=color.GetB();
			//分别对RGB三种色彩分量进行伪彩色还原

			//进行红色分量的还原
			if(R<127)
				R=0;
			if(R>=192)
				R=255;
			if(R<=191&&R>=128)
				R=4*R-510;

			/*进行绿色分量的还原,为了还原后的绿色分量再次参加比较，
			这里设置一个变量YES表示G是否已经参加了比较*/

			bool yes;
			yes=false;
			if(G<=191&&G>=128&&(!yes))
			{
				G=255;
				yes=true;
			}
			if(G>=192&&(!yes))
			{
				G=1022-4*G;
				yes=true;
			}
			if(G<=63&&(!yes))
			{
				G=254-4*G;
				yes=true;
			}
			if(G<=127&&G>=67&&(!yes))
				G=4*G-257;
			
			//进行蓝色分量的还原
			if(B<=63)
				B=255;
			if(B>=128)
				B=0;
			if(B>=67&&B<=127)
				B=510-4*B;
			
			//还原后的伪彩色
			Color colorResult(255,R,G,B);
			//将还原后的RGB信息重新写入位图
			image2->SetPixel(i, j, colorResult);
					
		}	
	}
	//重新绘制还原后的伪彩色位图
	//重新绘制灰度化图
	g.DrawImage(image2, Rect(0, 0, Width, Height));

	delete image2;
	delete image3;
}

//
void Inverse_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	graphics.ScaleTransform(0.7f,0.7f);
	
	Bitmap image(L"head.bmp");				
	int Width =image.GetWidth();
	int Height =image.GetHeight();

	Color colorTemp,color2;
	Color color;
	//绘制原图
	graphics.DrawImage(&image, Rect(0, 0, Width, Height));
	
	for(int  i=0;i<Width;i++)
	{
		for( int j=0; j<Height;j++)
		{
			image.GetPixel(i, j, &color);
			//将色彩进行反转，获得底片效果
			int r=255-color.GetRed();
			int g=255-color.GetGreen();
			int b=255-color.GetBlue();
			Color colorResult(255,r,g,b);
			//将还原后的RGB信息重新写入位图
			image.SetPixel(i, j, colorResult);
		}
		//动态绘制底片滤镜效果图
		graphics.DrawImage(&image, Rect(Width, 0, Width, Height));
	}
	//将已经实现了底片效果的位图再反色(恢复到原图)
	for(i=0;i<Width;i++)
	{
		for( int j=0; j<Height;j++)
		{
			image.GetPixel(i, j, &color);
			int r=255-color.GetRed();
			int g=255-color.GetGreen();
			int b=255-color.GetBlue();
			Color colorResult(255,r,g,b);
			//将还原后的RGB信息重新写入位图
			image.SetPixel(i, j, colorResult);
		}
		//绘制经过两次反色的位图
		graphics.DrawImage(&image, Rect(Width*2, 0, Width, Height));
	}
}

//
void Emboss_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	graphics.ScaleTransform(0.7f,0.7f);

	Bitmap image(L"head.bmp");				
	int Width =image.GetWidth();
	int Height =image.GetHeight();

	//image2:进行雕刻处理
	Bitmap *image2=image.Clone(Rect(0,0,Width,Height), PixelFormatDontCare);

	//绘制原图
	graphics.DrawImage(&image, Rect(0, 0, Width, Height));
	Color color, colorTemp,colorLeft;

	//进行图片的浮雕处理
	//依次访问每个像素的RGB值
	for(int i=Width-1; i>0;i--)
	{
		for( int j=Height-1; j>0;j--)
		{
			//获取相邻两个像素的R、G、B值
			image.GetPixel(i, j, &color);
			image.GetPixel(i-1, j-1, &colorLeft);
			//计算与左上角像素的RGB分量之差
			//67：控制图片的最低灰度，128：常量，更改这两个值会得到不同的效果
			int r=max(67,min(255,
				abs(color.GetRed()-colorLeft.GetRed()+128)));
			int g=max(67,min(255,
				abs(color.GetGreen()-colorLeft.GetGreen()+128)));
			int b=max(67,min(255,
				abs(color.GetBlue()-colorLeft.GetBlue()+128)));
			Color colorResult(255,r,g,b);
			//将计算后的RGB值回写到位图
			image.SetPixel(i, j,colorResult);
		}

		//绘制浮雕图
		graphics.DrawImage(&image, Rect(Width+10, 0, Width, Height));
	}

	//进行图片的雕刻处理
	for(i=0; i<Height-1;i++)
	{
		for( int j=0; j<Width-1;j++)
		{
			image2->GetPixel(j, i, &color);	
			image2->GetPixel(j+1, i+1, &colorLeft);	
			//计算与右下角像素的分量之差
			//67：控制图片的最低灰度，128：常量，更改这两个值会得到不同的效果
			int r=max(67,min(255,abs(color.GetRed()-colorLeft.GetRed()+128)));
			int g=max(67,min(255,abs(color.GetGreen()-colorLeft.GetGreen()+128)));
			int b=max(67,min(255,abs(color.GetBlue()-colorLeft.GetBlue()+128)));
			Color colorResult(255,r,g,b);
			image2->SetPixel(j, i,colorResult);
		}

		//绘制雕刻图
		graphics.DrawImage(image2, Rect(Width*2+20, 0, Width, image.GetHeight()));
	}
	delete image2;
}

void CreatePenFromBrush_Click()
{
	Graphics &g=GetGraphics();
	g.Clear(Color::White);
	//构造线性渐变画刷
	LinearGradientBrush LineargradientBrush(Rect(0,0,10,10),
		Color::Blue,Color::Red, LinearGradientModeBackwardDiagonal);
	//从线性渐变画刷中构造画笔
	Pen pen(&LineargradientBrush);
	pen.SetWidth(10);
	//绘制矩形
	g.DrawRectangle(&pen,10,10,100,100);

	//装入纹理图片
	Bitmap image(L"butterfly.bmp");
	//构造纹理画刷
	TextureBrush  tBrush(&image);
	//将画刷传入画笔的构造函数
	Pen texturedPen(&tBrush,42);

	//设置贝塞尔曲线的起止点及控制点
	Point p1(10, 100);   
	Point c1= Point(100, 10);   
	Point c2= Point(150, 150);  
	Point p2= Point(200, 100);  
	g.TranslateTransform(130,0);
	//绘制贝塞尔曲线
	g.DrawBezier(&texturedPen, p1, c1, c2, p2);
}

//画笔的线形演示
void DashStyle_Custom_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue, 5);

	//设置文本输出对齐方式及字体
	StringFormat fmt;
	fmt.SetAlignment(StringAlignmentNear);
	fmt.SetLineAlignment(StringAlignmentCenter);
	//字体
	Font font(L"Arial",12);
	SolidBrush sBrush(Color::Black);
	graphics.TranslateTransform(0,30);

	int i=0;
	//分别使用常见的五种线型绘制直线
	for(;i<5;i++)
	{
		//设置线型
		pen.SetDashStyle((DashStyle)i);
		graphics.DrawLine(&pen, 10, 30*i, 260, 30*i);
		//输出当前线型的名称
		CString s; s.Format(_T("%d"), i+1);
		MyDrawString(graphics, s, font, sBrush, PointF(260.f,30.f*i), fmt);
		s.ReleaseBuffer();
	}

	//使用自定义义线型
	float dashVals[]=
	{
		5.0f,   // 线长5个像素
		2.0f,   // 间断2个像素
		15.0f,  // 线长15个像素
		4.0f    // 间断4个像素
	};
	pen.SetDashPattern(dashVals, 4);
	pen.SetColor(Color::Red);
	graphics.DrawLine(&pen, 10, 30*i, 260, 30*i);
	CString s; s.Format(_T("%d"), i+1);
	MyDrawString(graphics, s, font, sBrush, PointF(260.f,30.f*i), fmt);
}

void Pen_Align_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	
	Pen pen(Color::Gray, 1.0f);

	Pen pen2(Color(155,255,0,0),10);
	int i=0;
	for(; i<5;i++)
	{
		pen2.SetAlignment((PenAlignment)i);
		graphics.DrawLine(&pen2, Point(0,10), Point(60,10));
		graphics.TranslateTransform(70,0);
	}

	graphics.ResetTransform();
	graphics.DrawLine(&pen,0,10,600,10);
}

void Pen_Tranform_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//构造一支宽度为5的红色画笔
	Pen pen(Color::Red, 3.0f);
	//将画笔从垂直方向扩充6倍，水平方向保持不变
	pen.ScaleTransform(1, 6);
	//使用未经旋转处理的画笔画圆
	graphics.DrawEllipse(&pen, 0, 50, 80, 80);
	//60°旋转
	graphics.TranslateTransform(100,0);
	pen.RotateTransform(60, MatrixOrderAppend);
	graphics.DrawEllipse(&pen, 0, 50, 80, 80);
	//120°旋转
	graphics.TranslateTransform(100,0);
	pen.RotateTransform(60, MatrixOrderAppend);
	graphics.DrawEllipse(&pen, 0, 50, 80, 80);
	//180°旋转
	graphics.TranslateTransform(100,0);
	pen.RotateTransform(60, MatrixOrderAppend);
	graphics.DrawEllipse(&pen, 0, 50, 80, 80);
}
//线帽演示
void Pen_LineCap_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//设置文本输出对齐方式及字体
	StringFormat fmt;
	fmt.SetAlignment(StringAlignmentNear);
	fmt.SetLineAlignment(StringAlignmentCenter);
	//字体
	Font font(L"Arial",12);
	SolidBrush sBrush(Color::Black);

	//创建宽度为15的画笔
	Pen pen(Color::Black,15);
	//分别使用不同的线帽
	LineCap lincap[]=
	{
		LineCapFlat,
		LineCapSquare,
		LineCapRound,
		LineCapTriangle,

		LineCapNoAnchor,
		LineCapSquareAnchor,
		LineCapRoundAnchor,
		LineCapDiamondAnchor,
		LineCapArrowAnchor,

		LineCapCustom,

		LineCapAnchorMask
	};

	for (int i=0; i<sizeof(lincap)/sizeof(LineCap); i++)
	{
		pen.SetStartCap(lincap[i]);//起点
		pen.SetEndCap(lincap[i]);//终点

		graphics.DrawLine(&pen,50,10,300,10);
		//输出当前线帽类型（LineCap枚举成员名）
		CString s; s.Format(_T("%d"), lincap[i]);
		MyDrawString(graphics, s, font, sBrush, PointF(320.f,10.f), fmt);
		//平移绘图平面
		graphics.TranslateTransform(0,30);
	}
}

//画笔的透明度支持
void Pen_TransColor_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//分别构造蓝色、红色画笔
	Pen	blue(Color::Blue);
	Pen red(Color::Red);
	//绘制网线
	int y = 256;
	for (int x = 0; x < 256; x += 5)
	{
		graphics.DrawLine(&blue, 0, y, x, 0);
		graphics.DrawLine(&red, 256, x, y, 256);  
		y -= 5;
		//延时以查看动态效果
		::Sleep(20);
	}		
	//使用绿色画笔绘制不同透明度的线条
	//透明度由上到下依次递减
	for (y = 0; y < 256; y++)
	{
		Pen pen(_MakeA_RGB(y,Color::Green));  
		graphics.DrawLine(&pen, 0, y, 256, y);
		//延时以便查看动态效果
		::Sleep(20);
	}

	//使用绿色画笔绘制不同透明度的线条
	//透明度由左到右依次递减
	for (x = 0; x < 256; x++)
	{
		Pen pen(_MakeA_RGB(x, Color::Blue));
		graphics.DrawLine(&pen, x, 100, x, 200);
		//延时以查看动态效果
		::Sleep(20);
	}
}
//简单的单色画刷示意
void Brush_SolidBrush_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//创建绿色画刷
	SolidBrush greenBrush(Color::Green);
	//定义曲线、多边形端点坐标
	PointF point1(100.0f, 100.0f);
	PointF point2(200.0f, 50.0f);
	PointF point3(250.0f, 200.0f);
	PointF point4(50.0f, 150.0f);
	PointF point5(100.0f, 100.0f);
	PointF points[]={point1, point2, point3, point4};
	//填充闭合曲线
	graphics.FillClosedCurve(&greenBrush, points, 4, FillModeAlternate, 1.0f);

	//构造多边形(闭合)
	PointF poly[]={point1, point2, point3, point4,point5};
	//在另一个位置填充多边形
	graphics.TranslateTransform(300,0);
	graphics.FillPolygon(&greenBrush, poly, 5, FillModeAlternate);
}
//填充正叶曲线
void Brush_FillVurve_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//创建绿色画刷
	SolidBrush greenBrush(Color::Green);
	int cx,cy;
	//以当前窗口的中心点绘制正叶曲线
	cx=MyClient.Width/2;
	cy=MyClient.Height/2;
	//设置"叶"长
	int LeafLength=80;
	//设置叶片数量=2* LeafNum
	int LeafNum=5;
	double x,y,x2,y2,r;

	//创建一个图形路径对象，用以容纳正叶曲线的边界线
	GraphicsPath tmpPath(FillModeAlternate);
	//生成曲线边界数据：角度变化为一周PI*2
	for(float i=0.0f;i<PI*2+0.1f;i+=(float)PI/180)
	{
		r=(int)abs(LeafLength*cos(double(LeafNum*i)));
		x=r*cos(i);
		y=r*sin(i);
		x2=cx+x;
		y2=cy+y;
		/*将曲线的边界信息存入临时路径,如果想要查看这些信息所构成的区域
		，可以在此加入graphics.DrawLine(&pen,x2,y2,x2-1,y2-1);*/
		tmpPath.AddLine((int)x2,(int)y2,(int)x2,(int)y2);
	}

	//填充路径
	graphics.FillPath(&greenBrush, &tmpPath);

	//绘制中心坐标轴
	Pen pen(Color::Gray);
	graphics.DrawLine(&pen,0,cy,cx*2,cy);
	graphics.DrawLine(&pen,cx,0,cx,cy*2);
}
//影线画刷示意
void Brush_HatchBrush_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//构造影线画刷的前后色彩
	Color black=Color::Black;
	Color white=Color::White;

	//使用第一种风格的影线画刷
	HatchBrush brush(HatchStyleHorizontal, black, white);
	graphics.FillRectangle(&brush, 20, 20, 100, 50);

	//使用第二种风格的影线画刷
	HatchBrush brush1(HatchStyleVertical, black, white);
	graphics.FillRectangle(&brush1, 120, 20, 100, 50);

	//使用第三种风格的影线画刷
	HatchBrush brush2(HatchStyleForwardDiagonal, black, white);
	graphics.FillRectangle(&brush2, 220, 20, 100, 50);

	//使用第四种风格的影线画刷
	HatchBrush brush3(HatchStyleBackwardDiagonal, black, white);
	graphics.FillRectangle(&brush3, 320, 20, 100, 50);

	//使用第五种风格的影线画刷
	HatchBrush brush4(HatchStyleCross, black, white);
	graphics.FillRectangle(&brush4, 420, 20, 100, 50);

	//使用第六种风格的影线画刷
	HatchBrush brush5(HatchStyleDiagonalCross, black, white);
	graphics.FillRectangle(&brush5, 520, 20, 100, 50);
}
//列举出所有风格的影线画刷
void Brush_EnumAllStyle_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//设定画刷的前景色为黑色，背景色为白色
	Color black=Color::Black;
	Color white=Color::White;

	//预定义填充区域的宽度及高度
	int WIDTH=140;
	int HEIGHT=40;

	//设定输出文本所需信息
	SolidBrush redBrush(Color::Red);
	Font myFont(L"Arial", 10);

	//column_count表明在每一行能够绘制矩形的总数
	int column_count=MyClient.Width/WIDTH;
	int rol=0;
	int column=0;

	//在当前窗口使用所有的影线画刷种风格填充矩形
	Pen pen(Color::Blue, 1);
	for (int i=HatchStyleHorizontal; i<HatchStyleTotal; i++)
	{
		HatchStyle style=(HatchStyle)i;
		//如果一行已经绘制完毕，换行
		if (rol>column_count-1)
		{
			column+=2;
			rol=0;
		}
		//创建临时画刷
		HatchBrush brush_tmp(style, black, white);
		//填充矩形：设置宽度为WIDTH-20的目的是让矩形之间留出间隔
		graphics.FillRectangle(&brush_tmp, rol*WIDTH, column*HEIGHT, WIDTH-20, HEIGHT);
		//绘制矩形边框
		graphics.DrawRectangle(&pen, rol*WIDTH, column*HEIGHT, WIDTH-20, HEIGHT);

		//显示每种画刷风格的枚举名称
		//计算文本输出区域
		RectF layoutRect(rol*WIDTH, (column+1)*HEIGHT, WIDTH, HEIGHT);
		StringFormat format;
		//设置文本输出格式：水平、垂直居中
		format.SetAlignment(StringAlignmentNear);
		format.SetLineAlignment(StringAlignmentCenter);
		//在矩形框中央输出枚举值
		CString s; s.Format(_T("%d"), style);
		MyDrawString(graphics, s, myFont, redBrush, layoutRect, format);
		rol+=1;
	}
}
//设置绘制原点
void Brush_SetRenderingOrigin_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//设定画刷的前景色为黑色，背景色为白色
	Color black=Color::Black;
	Color white=Color::White;
	HatchBrush hatchBrush(HatchStyleDarkDownwardDiagonal,black,white);

	//在竖直方向填充8个矩形，使用默认的画刷原点
	for(int i=0;i<8;i++)
	{
		graphics.FillRectangle(&hatchBrush, 0, i*50, 100, 50);  
	}

	//使用不同的绘制原点进行区域填充
	for(i=0;i<8;i++)
	{
		//设置画刷原点(水平方向递增)
		graphics.SetRenderingOrigin(i, 0);
		graphics.FillRectangle(&hatchBrush, 100, i*50, 100, 50);
	}
}
//纹理画刷的不同加载方式
void Brush_Texture_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue, 2);
	SolidBrush brush(Color::Black);
	Font myFont(L"宋体",12);

	//定义纹理画刷的不同填充区域
	RectF rect1(10, 10, 200,200);
	RectF rect2(210, 10, 200, 200);
	RectF rect3(410, 10, 200, 200);

	//装入纹理图片
	Bitmap image(L"nemo.bmp");
	//构造纹理画刷1：使用默认的方式
	TextureBrush tBrush(&image);
	//使用纹理画刷填充圆形区域
	graphics.FillEllipse(&tBrush,rect1);
	//绘制圆周
	graphics.DrawEllipse(&pen,rect1);
	MyDrawString(graphics, "图片原始大小", myFont, brush, PointF(40,220));

	//构造纹理画刷2：只使用给定图片的部分区域
	TextureBrush tBrush2(&image, Rect(55,35,55,35));
	graphics.FillEllipse(&tBrush2,rect2);
	graphics.DrawEllipse(&pen,rect2);
	MyDrawString(graphics, "使用部分截图", myFont, brush, PointF(240,220)); 

	//构造纹理画刷3：将使用图片的画刷进行缩放
	TextureBrush tBrush3(&image);
	//对画刷进行50%的缩放
	Matrix mtr(0.5f, 0.0f, 0.0f,0.5f, 0.0f, 0.0f);
	tBrush3.SetTransform(&mtr);
	graphics.FillEllipse(&tBrush3,rect3);
	graphics.DrawEllipse(&pen,rect3);
	MyDrawString(graphics, "比例缩小图片",myFont,brush, PointF(440,220));
}

//使用图片排列方式
void Brush_Texture_WrapMode_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue, 2);
	SolidBrush brush(Color::Black);
	Font myFont(L"Arial", 13);

	//装入纹理图片
	Bitmap image(L"nemo.bmp");
	//构造纹理画刷
	TextureBrush tBrush(&image);
	//将画刷进行缩放
	Matrix mtr(0.5f, 0.0f, 0.0f,0.5f, 0.0f, 0.0f);
	tBrush.SetTransform(&mtr);

	int i=0;
	//对图片不使用排列方式
	tBrush.SetWrapMode(WrapModeClamp);
	graphics.FillRectangle(&tBrush, Rect(i*150,0,150,150));
	graphics.DrawRectangle(&pen, Rect(i*150,0,150,150));
	MyDrawString(graphics, "Clamp", myFont,brush, PointF(0,155)); 

	i+=1;
	//对图片使用平铺排列方式	
	tBrush.SetWrapMode(WrapModeTile);
	graphics.FillRectangle(&tBrush, Rect(i*150+10,0,150,150));
	graphics.DrawRectangle(&pen, Rect(i*150+10,0,150,150));
	MyDrawString(graphics, "Tile",myFont,brush, PointF(170,155) ); 

	//对图片使用水平翻转排列方式
	i+=1;
	tBrush.SetWrapMode(WrapModeTileFlipX);
	graphics.FillRectangle(&tBrush, Rect(i*150+20,0,150,150));
	graphics.DrawRectangle(&pen, Rect(i*150+20,0,150,150));

	MyDrawString(graphics, "TileFlipX",myFont,brush, PointF(320,155)); 

	//对图片使用垂直翻转排列方式
	tBrush.SetWrapMode(WrapModeTileFlipY);
	graphics.FillRectangle(&tBrush, Rect(0,180,150,150));
	graphics.DrawRectangle(&pen, Rect(0,180,150,150));
	MyDrawString(graphics, "TileFlipY",myFont,brush,  PointF(0,335)); 

	//对图片使用水平、垂直同时翻转排列方式
	tBrush.SetWrapMode(WrapModeTileFlipXY);
	graphics.FillRectangle(&tBrush, Rect(160,180,150,150));
	graphics.DrawRectangle(&pen, Rect(160,180,150,150));
	MyDrawString(graphics, "TileFlipXY",myFont,brush, PointF(170,335)); 
}
//纹理画刷的变换
void Brush_TextureTransform_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//为三种不同的变换方式的画刷定义填充区域
	RectF rect1= RectF (10, 10, 200,200);
	RectF rect2= RectF (210, 10, 200, 200);
	RectF rect3= RectF (410, 10, 200, 200);

	Pen pen(Color::Blue, 2);
	SolidBrush brush(Color::Black);
	Font myFont(L"宋体", 12);

	//装入纹理图片
	Bitmap image(L"nemo.bmp");
	//构造纹理画刷
	TextureBrush tBrush(&image);

	//将画刷旋转30度
	tBrush.RotateTransform(30);                     
	graphics.FillEllipse(&tBrush,rect1);
	graphics.DrawEllipse(&pen,rect1);
	MyDrawString(graphics, "旋转30度",myFont,brush, PointF(40,220)); 

	//重置变换矩阵：恢复到变化前的状态
	tBrush.ResetTransform();
	//将画刷在水平方向上扩大三倍
	tBrush.ScaleTransform(3, 1);
	graphics.FillEllipse(&tBrush, rect2);
	graphics.DrawEllipse(&pen,rect2);
	MyDrawString(graphics, "横向扩充三倍",myFont,brush,  PointF(240,220)); 

	//平移变换
	tBrush.ResetTransform();
	//将画刷在水平方向上平移30个像素
	tBrush.TranslateTransform(30, 0, MatrixOrderAppend);
	graphics.FillEllipse(&tBrush, rect3);
	graphics.DrawEllipse(&pen,rect3);
	MyDrawString(graphics, "横向平移30个像素",myFont,brush, PointF(440,220)); 
}
//查询画刷的变换信息
void Brush_GetTextureMatrix_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Matrix matrix;
	float elements[6];
	RectF rect1(10, 10, 200,200);
	Pen pen(Color::Black, 2);
	SolidBrush brush(Color::Black);

	Bitmap image(L"nemo.bmp");
	TextureBrush tBrush(&image);
	//进行三种任意变换
	tBrush.RotateTransform(30);
	tBrush.TranslateTransform(5,3);
	tBrush.ScaleTransform(0.5f,2.0f);

	//获取目前已经进行的画刷变换
	tBrush.SetTransform(&matrix);
	//从矩形到数组
	matrix.GetElements(elements);	
	graphics.FillEllipse(&tBrush,rect1);
	graphics.DrawEllipse(&pen,rect1);

	//输出矩阵的元素
	for(int j = 0; j <6; ++j)
	{
		CString s; s.Format(_T("%d %f 矩阵元素值"), j, elements[j]);
		AfxMessageBox(s);
	}
}
//线性渐变画刷程序
void Brush_LinearGradientBrush_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//定义一个由红色到蓝色渐变的画刷:水平变换区域的宽度为40
	//竖直方向不进行色彩渐变
	LinearGradientBrush linGrBrush(
		Point(0, 0),
		Point(40, 0),
		Color::Red,  //起点色彩	
		Color::Blue);  //止点色彩

	//定义一个色彩呈对角线变换的区域，区域大小为40*40
	LinearGradientBrush linGrBrush2(
		Point(0, 0),
		Point(40, 40),
		Color::Red,  //起点色彩	
		Color::Blue); //止点色彩	

	//分别演示不同的线性渐变画刷对目标区域的不同填充效果
	graphics.FillRectangle(&linGrBrush, 0, 0, 200, 200);
	graphics.FillRectangle(&linGrBrush2, 240, 0, 200, 200);

	Pen pen(Color::Gray,1);
	//在对角线方向上绘制单个画刷的填充区域
	for(int i=0;i<5;i++)
	{
		graphics.DrawRectangle(&pen, 240+i*40,i*40,40,40);
	}
}
//控制线性渐变画刷的填充方式
void Brush_LinearArrange_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue, 2);
	SolidBrush brush(Color::Black);
	Font myFont(L"Arial", 13);

	//定义一个色彩呈对角线变换的区域，区域大小为40*40
	LinearGradientBrush linGrBrush(
		Point(0, 0),
		Point(40, 40),
		Color::Red, //起点色彩	
		Color::Blue); //止点色彩	

	int i=0;
	//对渐变画刷使用平铺排列方式(默认方式)
	linGrBrush.SetWrapMode(WrapModeTile);
	//填充一个大小为160的正方形
	graphics.FillRectangle(&linGrBrush, Rect(i*160,0,160,160));
	graphics.DrawRectangle(&pen, Rect(i*160,0,160,160));
	MyDrawString(graphics, "Tile", myFont, brush, Point(20,165)); 

	//对渐变画刷使用水平翻转排列方式
	i+=1;
	linGrBrush.SetWrapMode(WrapModeTileFlipX);
	//重置绘图平面原点
	graphics.SetRenderingOrigin(160,0);
	graphics.FillRectangle(&linGrBrush, Rect(i*160,0,160,160));
	graphics.DrawRectangle(&pen, Rect(i*160,160,0,160));
	MyDrawString(graphics, "TileFlipX", myFont, brush, Point(170,165)); 

	//对渐变画刷使用垂直翻转排列方式
	linGrBrush.SetWrapMode(WrapModeTileFlipY);
	//重置绘图平面原点
	graphics.SetRenderingOrigin(0,200);
	graphics.FillRectangle(&linGrBrush, Rect(0,200,160,160));
	graphics.DrawRectangle(&pen, Rect(0,200,200,160));
	MyDrawString(graphics, "TileFlipY",myFont,brush, Point(0,375)); 

	//对渐变画刷使用水平、垂直同时翻转排列方式
	linGrBrush.SetWrapMode(WrapModeTileFlipXY);
	graphics.SetRenderingOrigin(160,200);
	graphics.FillRectangle(&linGrBrush, Rect(160,200,160,160));
	graphics.DrawRectangle(&pen, Rect(160,200,160,160));
	MyDrawString(graphics, "TileFlipXY",myFont,brush, Point(170,375)); 

	//标注渐变画刷渐变区域的大小：画格子
	Pen pen2(Color::Gray, 1);
	for(i=0;i<8;i++)
		graphics.DrawLine(&pen2,0,i*40,320,i*40);
	for(i=0;i<9;i++)
		graphics.DrawLine(&pen2,i*40,0,i*40,360);
}
//定义线性渐变画刷的渐变模式
void Brush_LinearGradientMode_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue, 2);
	SolidBrush brush(Color::Black);
	Font myFont(L"Arial", 12);

	//定义一个水平渐变画刷，大小40*20
	LinearGradientBrush linGrBrush1(
		Rect(0, 0, 40, 20),
		Color::Red,  
		Color::Blue,LinearGradientModeHorizontal);  

	//定义一个垂直渐变画刷
	LinearGradientBrush linGrBrush2(
		Rect(0, 0, 40, 20),
		Color::Red,  
		Color::Blue,LinearGradientModeVertical); 

	//从右上到左下的渐变画刷
	LinearGradientBrush linGrBrush3(
		Rect(0, 0, 40, 20),
		Color::Red,  
		Color::Blue,LinearGradientModeForwardDiagonal);  

	//从左上到左下的渐变画刷
	LinearGradientBrush linGrBrush4(
		Rect(0, 0, 40, 20),
		Color::Red,  
		Color::Blue,LinearGradientModeBackwardDiagonal);  

	int i=0;
	//使用水平渐变的画刷填充区域
	graphics.FillRectangle(&linGrBrush1, Rect(i*160,0,160,160));
	graphics.DrawRectangle(&pen, Rect(i*160,0,160,160));
	MyDrawString(graphics, "水平渐变",myFont,brush, PointF(20,165));

	i+=1;
	//重置绘图平面原点
	graphics.SetRenderingOrigin(160,0);
	//使用垂直渐变的画刷填充区域
	graphics.FillRectangle(&linGrBrush2, Rect(i*160,0,160,160));
	graphics.DrawRectangle(&pen, Rect(i*160,160,0,160));
	MyDrawString(graphics, "垂直渐变",myFont,brush, PointF(170,165)); 

	//重置绘图平面原点
	graphics.SetRenderingOrigin(0,200);
	//使用从右上到左下渐变的画刷填充区域
	graphics.FillRectangle(&linGrBrush3, Rect(0,200,160,160));
	graphics.DrawRectangle(&pen, Rect(0,200,200,160));
	MyDrawString(graphics, "左上->右下",myFont,brush, PointF(0,375)); 

	graphics.SetRenderingOrigin(160,200);
	graphics.FillRectangle(&linGrBrush4, Rect(160,200,160,160));
	//使用从左上到右下渐变的画刷填充区域
	graphics.DrawRectangle(&pen, Rect(160,200,160,160));
	MyDrawString(graphics, "右上->左下",myFont,brush, PointF(170,375)); 

	//在不同的区域中标注定义渐变方向的矩形
	Pen pen2(Color::Gray, 1);
	for(i=0;i<18;i++)
		graphics.DrawLine(&pen2,0,i*20,320,i*20);
	for(i=0;i<9;i++)
		graphics.DrawLine(&pen2,i* 40,0,i*40,360);
}
//渐变线偏转角度
void Brush_LinearAngle_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue, 2);
	SolidBrush brush(Color::Black);
	Font myFont(L"Arial", 12);

	//定义一个渐变线偏转角度为30度的渐变画刷，大小40*20
	LinearGradientBrush linGrBrush1(
		Rect(0, 0, 40, 20),
		Color::Red,  
		Color::Blue,30.0f);  
	//定义一个渐变线偏转角度为45度的渐变画刷
	LinearGradientBrush linGrBrush2(
		Rect(0, 0, 40, 20),
		Color::Red,  
		Color::Blue,45.0f); 
	//定义一个渐变线偏转角度为90度的渐变画刷
	LinearGradientBrush linGrBrush3(
		Rect(0, 0, 40, 20),
		Color::Red,  
		Color::Blue,90.0f);  
	//定义一个渐变线偏转角度为180度的渐变画刷
	LinearGradientBrush linGrBrush4(
		Rect(0, 0, 40, 20),
		Color::Red,  
		Color::Blue,180.0f);  

	int i=0;
	//使用偏转角度为30度的渐变画刷填充区域
	graphics.FillRectangle(&linGrBrush1, Rect(i*160,0,160,160));
	graphics.DrawRectangle(&pen, Rect(i*160,0,160,160));
	MyDrawString(graphics, "30度偏转",myFont,brush, PointF(20,165)); 

	i+=1;
	//重置绘图平面原点
	graphics.SetRenderingOrigin(160,0);
	//使用偏转角度为45度的渐变画刷填充区域
	graphics.FillRectangle(&linGrBrush2, Rect(i*160,0,160,160));
	graphics.DrawRectangle(&pen, Rect(i*160,160,0,160));
	MyDrawString(graphics, "45度偏转",myFont,brush, PointF(170,165));

	//重置绘图平面原点
	graphics.SetRenderingOrigin(0,200);
	//使用偏转角度为90度的渐变画刷填充区域
	graphics.FillRectangle(&linGrBrush3, Rect(0,200,160,160));
	graphics.DrawRectangle(&pen, Rect(0,200,200,160));
	MyDrawString(graphics, "90度偏转",myFont,brush, PointF(0,375));

	graphics.SetRenderingOrigin(160,200);
	graphics.FillRectangle(&linGrBrush4, Rect(160,200,160,160));
	//使用偏转角度为180度的渐变画刷填充区域
	graphics.DrawRectangle(&pen, Rect(160,200,160,160));
	MyDrawString(graphics, "180度偏转",myFont,brush, PointF(170,375));

	//在不同的区域中标注定义渐变方向的矩形
	Pen pen2(Color::Gray, 1);
	for(i=0;i<18;i++)
		graphics.DrawLine(&pen2,0,i*20,320,i*20);
	for(i=0;i<9;i++)
		graphics.DrawLine(&pen2,i* 40,0,i*40,360);
}

//多色渐变画刷
void Brush_LinearInterpolation_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//定义三种参与渐变的色彩
	Color colors[] = 
	{
		Color::Red,   // 红色
		Color::Green,//过渡色为绿色
		Color::Blue // 蓝色
	};

	float positions[] = 
	{
		0.0f,   // 由红色起
		0.3f,   // 绿色始于画刷长度的三分之一
		1.0f   // 到蓝色止
	};  

	//构造一条从黑色到白色的渐变画刷
	LinearGradientBrush linGrBrush(
		Point(0, 0), 
		Point(180, 0), 
		Color::Black,Color::White);

	//设置渐变画刷的多色渐变信息
	//linGrBrush.InterpolationColors=clrBlend;
	linGrBrush.SetInterpolationColors(colors, positions, 3);
	//使用多色渐变画刷填充目标区域
	graphics.FillRectangle(&linGrBrush, 0, 0, 180, 100);

	//使用普通的方法实现多色渐变
	//由红到绿，长度60
	LinearGradientBrush linGrBrush1(
		Point(0, 0), 
		Point(60, 0),
		Color::Red,         
		Color::Green);  
	//由绿到蓝，长度120
	LinearGradientBrush linGrBrush2(
		Point(60, 0), 
		Point(181, 0),
		Color::Green,        
		Color::Blue);  
	//分别使用两个画刷填充两个相邻区域，形成多色渐变
	graphics.FillRectangle(&linGrBrush1, 0, 120, 60, 100);
	graphics.FillRectangle(&linGrBrush2, 60, 120, 120, 100);
}
//自定义渐变过程：三角形
void Brush_LinearCustomize_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brush(Color::Black);
	Font myFont(L"宋体", 12);
	//定义一个双色渐变画刷
	LinearGradientBrush linGrBrush(
		Point(0, 0),
		Point(250, 0),
		Color::Red,   
		Color::Blue);  

	//绘制两条使用默认渐变方式填充的矩形，以用作比较
	graphics.FillRectangle(&linGrBrush, 0, 0, 250, 15);
	graphics.FillRectangle(&linGrBrush, 500, 0, 250, 15);

	//依次改变合成点位置
	int row=1;
	for(float i=0.0f;i<1.0f;i+=0.1f)
	{
		linGrBrush.SetBlendTriangularShape(i);	
		graphics.FillRectangle(&linGrBrush, 0, row*15, 250, 15);
		row++;
	}
	MyDrawString(graphics, "改变合成点位置",
		myFont,brush, PointF(40,200));

	//依次改变彩色合成因子
	row=1;
	for(i=0.0f;i<1.0f;i+=0.1f)
	{
		//将合成的相对位置设置在整个区域的50%处
		linGrBrush.SetBlendTriangularShape (0.5f,i);	
		graphics.FillRectangle(&linGrBrush, 500, row*15, 250, 15);
		row++;
	}
	MyDrawString(graphics, "改变色彩合成因子",
		myFont,brush, PointF(540,200));

}
//基于钟形曲线的渐变画刷		
void Brush_LinearGradientBrush_BellShape_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Rect myRect(10, 10, 150, 75);
	//定义线性渐变画刷
	LinearGradientBrush myLGBrush(
		myRect,Color::Blue,Color::Red,0.0f,true);

	//使用默认的线性渐变画刷填充椭圆
	graphics.FillEllipse(&myLGBrush, myRect);

	//将渐变过程设置成基于钟形曲线的渐变
	myLGBrush.SetBlendBellShape(.5f, 1.0f);

	//使用自定义渐变过程的画刷填充椭圆
	graphics.TranslateTransform(160,0);
	graphics.FillEllipse(&myLGBrush, myRect);
}

void Brush_PathGradientBrush_Star_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Gray,1);
	SolidBrush pthGrBrush(Color::Red);
	SolidBrush blackbrush(Color::Blue);
	graphics.TranslateTransform(20,20);

	//构造五星的10个边的端点坐标
	Point points[] = 
	{
		 Point(75, 0), Point(100, 50), 
		 Point(150, 50), Point(112, 75),
		 Point(150, 150), Point(75, 100), 
		 Point(0, 150), Point(37, 75), 
		 Point(0, 50), Point(50, 50),
		 Point(75, 0)
	 };

	// 创建路径
	GraphicsPath path;
	//在路径中加入直线
	path.AddLines(points, sizeof(points)/sizeof(Point));
	//填充路径
	graphics.FillPath(&pthGrBrush, &path);
	//绘制边界
	graphics.DrawLines(&pen, points, sizeof(points)/sizeof(Point));
	//绘制定义10个边的端点
	for(int i=0;i<10;i++)
		//每个圆点的直径为10
		graphics.FillEllipse(&blackbrush, points[i].X-5,points[i].Y-5,10,10);
}
//使用路径渐变画刷绘制五星
void Brush_PathGradientBrush_Star2_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//构造五星的10个边的端点坐标
	Point points[] =
	{
		 Point(75, 0), Point(100, 50), 
		 Point(150, 50), Point(112, 75),
		 Point(150, 150), Point(75, 100), 
		 Point(0, 150), Point(37, 75), 
		 Point(0, 50), Point(50, 50),
		 Point(75, 0)
	};
	// 创建路径
	GraphicsPath path;
	//在路径中添加直线
	path.AddLines(points, sizeof(points)/sizeof(Point));
	//创建路径渐变画刷
	PathGradientBrush pthGrBrush(&path);
	//设置中心点色彩(终点色)
	pthGrBrush.SetCenterColor(Color::Red);

	//设置每个端点的色彩(终点色)
	Color colors[] =
	{
		Color::Black, Color::Green,
		Color::Blue, Color::White, 
		Color::Black, Color::Green, 
		Color::Blue, Color::White,
		Color::Black, Color::Green
	};
	//设置路径渐变画刷的边缘色
	int clrCount=sizeof(colors)/sizeof(Color);
	pthGrBrush.SetSurroundColors(colors, &clrCount);
	// 填充目标路径
	graphics.FillPath(&pthGrBrush, &path);

	//将中心色及边界色都设置成随机色，查看渐变效果
	for(int z=0;z<10;z++)
	{
		//在水平方向上平移绘图平面
		graphics.TranslateTransform(200.0f, 0.0f);
		//设置中心点色彩为随机色
		pthGrBrush.SetCenterColor(_MakeA_RGB(rand_Next(255)%155,rand_Next(255)%255,rand_Next(255)%255));
		//使用原有的边缘色
		pthGrBrush.SetSurroundColors(colors, &clrCount);
		graphics.FillPath(&pthGrBrush, &path);
	}
}
//使用多个路径渐变画刷
void Brush_Using_MorePathGradientBrush_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//定义一个六边形，边长为50	
	float fHalf = 50 * (float)sin(120.0f/360.0f*PI); 
	PointF pts[] =
	{
		PointF( 50, 0),           
		PointF( 50 * 1.5f,  0),
		PointF( 50,         0),           
		PointF( 50 / 2,    -fHalf),
		PointF(-50 / 2,    -fHalf),
		PointF(-50,         0),
		PointF(-50 * 1.5f,  0), 
		PointF(-50,         0),
		PointF(-50 / 2,     fHalf),     
		PointF( 50 / 2,     fHalf)
	};

	//构造六边形渐变画刷
	PathGradientBrush pgbrush1(pts, 10);

	//在水平和垂直方向上平移六边形的顶点
	for (int i = 0; i <10; i++)
	{
		pts[i].X += 50*1.5f;
		pts[i].Y += fHalf;
	}

	//根据改变坐标后的点重新生成路径渐变画刷
	PathGradientBrush pgbrush2(pts, 10);

	//设置路径渐变画刷的翻转方式为平铺
	pgbrush1.SetWrapMode(WrapModeTile);
	pgbrush2.SetWrapMode(WrapModeTile);

	//分别设置两个画刷的中心点色彩为红、绿色
	pgbrush1.SetCenterColor(Color::Red);
	pgbrush2.SetCenterColor(Color::Green);

	//填充当前窗口
	graphics.FillRectangle(&pgbrush1, 0, 0,MyClient.Width,MyClient.Height);
	//在上次未被填充的区域中再次填充当前窗口的空白部份
	graphics.FillRectangle(&pgbrush2, 0, 0,MyClient.Width,MyClient.Height);
}
//路径渐变画刷的填充方式
void Brush_PathGradientBrush_WrapMode_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue, 2);
	SolidBrush brush(Color::Black);
	Font myFont(L"Arial", 12);

	//定义五星的边线坐标，为演示翻转效果，将五星的一角拉长
	Point points[] =
	{
		Point(75, 0), Point(100, 50), 
		Point(150, 50), Point(112, 75),
		Point(150, 150), Point(75, 100), 
		Point(0, 190), Point(37, 75), 
		Point(10, 50), Point(50, 50)
	};

	GraphicsPath path;
	path.AddLines(points, sizeof(points)/sizeof(Point));

	// 构造路径渐变画刷
	PathGradientBrush pthGrBrush(&path);
	//设置中心点色彩(终点色)
	pthGrBrush.SetCenterColor(Color::Red);

	//设置每个端点的色彩(终点色)
	Color colors[]=
	{
		Color::Black,   Color::Green,
		Color::Blue, Color::White, 
		Color::Black,   Color::Green, 
		Color::Blue, Color::White,
		Color::Black,   Color::Green
	};

	int clrCount=sizeof(colors)/sizeof(Color);
	pthGrBrush.SetSurroundColors(colors, &clrCount);
	//缩小画刷
	pthGrBrush.ScaleTransform(0.2f,0.2f);
	int i=0;

	//对渐变画刷使用平铺排列方式(默认方式)
	pthGrBrush.SetWrapMode(WrapModeTile);
	graphics.FillRectangle(&pthGrBrush, Rect(i*120,0,120,120));
	graphics.DrawRectangle(&pen, Rect(i*120,0,120,120));
	MyDrawString(graphics, "Tile",myFont,brush, PointF(20,125));

	i+=1;
	pthGrBrush.SetWrapMode(WrapModeTileFlipX);
	graphics.FillRectangle(&pthGrBrush, Rect(i*120,0,120,120));
	graphics.DrawRectangle(&pen, Rect(i*120,0,120,120));
	MyDrawString(graphics, "TileFlipX",myFont,brush, PointF(170,125));

	//对渐变画刷使用垂直翻转排列方式
	pthGrBrush.SetWrapMode(WrapModeTileFlipY);
	graphics.FillRectangle(&pthGrBrush, Rect(0,200,120,120));
	graphics.DrawRectangle(&pen, Rect(0,200,120,120));
	MyDrawString(graphics, "TileFlipY",myFont,brush, PointF(0,325));

	//对渐变画刷使用水平、垂直同时翻转排列方式
	pthGrBrush.SetWrapMode(WrapModeTileFlipXY);
	graphics.FillRectangle(&pthGrBrush, Rect(120,200,120,120));
	graphics.DrawRectangle(&pen, Rect(120,200,120,120));
	MyDrawString(graphics, "TileFlipXY",myFont,brush, PointF(170,325));

	//输出路径的约束矩形、中心点信息
	RectF rect;
	//获取画刷的约束矩形对象
	pthGrBrush.GetRectangle(&rect);
	PointF CenterPoint;
	//获取画刷的中心点信息
	pthGrBrush.GetCenterPoint(&CenterPoint);
	CString tmp;

	//格式化字符串
	tmp.Format("当前约束矩形的左上坐标为(%f,%f),宽度=%f 高度=%f\n当前渐变路径的中心点坐标为(%.2f,%.2f)",
		rect.X,rect.Y,rect.Height,rect.Width,
		CenterPoint.X,CenterPoint.Y);
	//输出中心点及约束矩形对象的信息
	MyDrawString(graphics, tmp,myFont,brush, PointF(0,395));
}
//更改路径渐变画刷的中心点
void Brush_PathGradientBrush_CenterPoint_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//构造一个圆形区域
	GraphicsPath path;
	path.AddEllipse(0, 0, 200, 200);
	SolidBrush brush(_MakeA_RGB(155,Color::Red));
	//构造一个圆形路径渐变画刷
	PathGradientBrush pthGrBrush(&path);

	//设置中心点色彩
	pthGrBrush.SetCenterColor(_MakeA_RGB(155,Color::White));
	Color colors[] ={_MakeA_RGB(55, Color::Blue)};
	//设置边缘色
	int clrCount=1;
	pthGrBrush.SetSurroundColors(colors, &clrCount);
	//填充区域，使用单色画刷
	graphics.FillEllipse(&pthGrBrush, 0, 0, 200, 200);
	//获取中心点色彩
	PointF center(0,0);
	pthGrBrush.GetCenterPoint(&center);

	//更改画刷的中心点沿圆周的上半部分平移
	for(int i=0;i<200;i++)
	{
		center.X=(REAL)i;
		center.Y=10.f;
		pthGrBrush.SetCenterPoint(center);
		graphics.FillEllipse(&pthGrBrush, 0, 0, 200, 200);
		//标记当前中心点
		graphics.FillEllipse(&brush, center.X, center.Y, 2.f, 2.f);
	}

	//更改画刷的中心点沿圆周的下半部分平移
	for(i=200;i>0;i--)
	{
		center.X=(REAL)i;
		center.Y=190;
		pthGrBrush.SetCenterPoint(center);
		graphics.FillEllipse(&pthGrBrush, 0, 0, 200, 200);
		//标记当前中心点
		graphics.FillEllipse(&brush, center.X, center.Y, 2.f, 2.f);
	}

}
//对路径渐变画刷使用多色渐变
void Brush_PathGradientBrush_InterpolationColors_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brush(Color::Red);
	//设置三角形的三个点
	Point points[]=
	{
		Point(100, 0), 
		Point(200, 200),
		Point(0, 200)
	};
	//创建一个三角形渐变画刷
	PathGradientBrush pthGrBrush(points, 3);
	//-定义参与渐变的色彩
	Color  colors[]=
	{
		Color::Red,     //红
		Color::Green,     //绿
		Color::Blue // 蓝
	}; 

	//设置合成点的位置
	float pos[] =
	{
		0.0f,    // 红色在区域边界为红色
		0.4f,    //在距离中心40%的位置处使用绿色
		1.0f	//中心点使用蓝色
	};   

	//设置渐变的过渡色
	pthGrBrush.SetInterpolationColors(colors, pos, 3);
	//填充区域
	graphics.FillRectangle(&pthGrBrush, 0, 0, 300, 300);  
	//标记中心点
	PointF centerpoint(0,0);;
	pthGrBrush.GetCenterPoint(&centerpoint);
	graphics.FillEllipse(&brush, centerpoint.X-5.f, centerpoint.Y-5.f, 10.f, 10.f);
}
//更改路径渐变画刷的焦点缩放比例
void Brsuh_PathGradietBrush_Focus_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Black,3);
	SolidBrush brush(Color::Black);
	Font myFont(L"Arial", 12);

	//指定三角形三点坐标,创建三角形渐变画
	Point points[]=
	{
		Point(100, 0),
		Point(200, 200),
		Point(0, 200)
	};

	PathGradientBrush pthGrBrush(points, 3);
	//指明渐变色
	Color colors[] = {Color::Red, Color::Blue};
	//指明色彩合成位置
	float relativePositions[]=
	{
		0.0f,    // 红色做边界
		1.0f // 蓝色为中心
	};

	//设置渐变色
	pthGrBrush.SetInterpolationColors(colors, relativePositions, 2);

	//使用默认缩放因子进行填充
	graphics.FillRectangle(&pthGrBrush, 0, 0, 200, 200); 

	//获取默认缩放因子 
	PointF FocusScales(0,0);
	pthGrBrush.GetFocusScales(&FocusScales.X, &FocusScales.Y);
	//输出缩放信息
	CString tmp;
	tmp.Format("水平:x=%.2f\n垂直:y=%.2f",FocusScales.X,FocusScales.Y);
	MyDrawString(graphics, tmp,myFont,brush, PointF(0,210));

	//平移绘图平面
	graphics.TranslateTransform(200,0);
	//更改缩放因子
	FocusScales.X=0.6f;
	FocusScales.Y=0.6f;
	pthGrBrush.SetFocusScales(FocusScales.X,FocusScales.Y);

	graphics.FillRectangle(&pthGrBrush, 0, 0, 200, 200);  
	MyDrawString(graphics, "水平:x=0.6\n垂直:y=0.6", myFont,brush, PointF(0,210));

	//水平缩放不等于垂直缩放时特例
	graphics.TranslateTransform(200,0);
	//更改缩放因子
	FocusScales.X=0.1f;
	FocusScales.Y=0.8f;
	pthGrBrush.SetFocusScales(FocusScales.X,FocusScales.Y);

	graphics.FillRectangle(&pthGrBrush,0, 0, 200, 200); 
	MyDrawString(graphics, "水平:x=0.1\n垂直:y=0.8", myFont,brush, PointF(0,210));

	//水平缩放=垂直缩放=1.0
	graphics.TranslateTransform(200,0);
	FocusScales.X=1.0f;
	FocusScales.Y=1.0f;
	pthGrBrush.SetFocusScales(FocusScales.X,FocusScales.Y);

	graphics.FillRectangle(&pthGrBrush, 0, 0, 200, 200); 
	MyDrawString(graphics, "水平:x=1.0\n垂直:y=1.0", myFont,brush, PointF(0,210));

	//水平缩放不等于垂直缩放时特例：放大原有区域
	graphics.TranslateTransform(200,0);
	FocusScales.X=2.0f;
	FocusScales.Y=1.5f;
	pthGrBrush.SetFocusScales(FocusScales.X,FocusScales.Y);

	graphics.FillRectangle(&pthGrBrush, 0, 0, 200, 200);
	MyDrawString(graphics, "水平:x=2.0\n垂直:y=1.5", myFont,brush, PointF(0,210));
}
//路径渐变画刷的变换
void Brush_PathGradientBrush_Transform_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	// 定义一个三角形路径渐变画刷
	Point pts[]={Point(50, 0), Point(100, 100), Point(0, 100)};
	PathGradientBrush pthGrBrush(pts, 3);

	//对画刷使用垂直翻转方式
	pthGrBrush.SetWrapMode(WrapModeTileFlipY);
	//缩小画刷	
	pthGrBrush.ScaleTransform(0.5f, 0.5f);
	//填充当前窗口
	graphics.FillRectangle(&pthGrBrush, 0, 0, MyClient.Width,MyClient.Height);

	//将画刷旋转90度
	pthGrBrush.RotateTransform(90.0f, MatrixOrderAppend);
	//再次填充当前窗口
	graphics.FillRectangle(&pthGrBrush, 0, 0, MyClient.Width,MyClient.Height);
}

void Brsuh_LinearGradientBrush_UsingGamma_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	LinearGradientBrush linGrBrush(
		Point(0, 10),
		Point(200, 10),
		Color::Red,
		Color::Blue);

	graphics.FillRectangle(&linGrBrush, 0, 0, 200, 50);
	linGrBrush.SetGammaCorrection(true);
	graphics.FillRectangle(&linGrBrush, 0, 60, 200, 50);

}
//简单的使用字体示意
void Font_UsingFontInGDIPlus_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	//新建一个字体对话框
	CFontDialog dlg;
	//允许对字体进行色彩设置
	//dlg.ShowColor=true;
	//调用字体选择对话框
	if(dlg.DoModal()!=IDOK)
		return;
	//获取在字体对话框中的字体信息
	LOGFONT lf; dlg.GetCurrentFont(&lf);
	Font myFont(CWideCharString(dlg.GetFaceName()), lf.lfHeight);
	//根据字体色彩创建画刷
	SolidBrush brush(dlg.GetColor());
	//设置文本输出格式：在当前窗口中居中显示
	StringFormat fmt;
	fmt.SetAlignment(StringAlignmentCenter);
	fmt.SetLineAlignment(StringAlignmentCenter);
	//输出文本
	graphics.DrawString(L"输出文本", 4, &myFont, RectF(0,0,MyClient.Width,MyClient.Height),&fmt, &brush);
}

//枚举所有的字体系列
void Font_EnumAllFonts_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush   solidBrush(Color::Black);
	FontFamily   fontFamily(L"Arial");
	Font         font(&fontFamily, 8, FontStyleRegular, UnitPoint);
	//设置文本输出格式
	StringFormat fmt;
	fmt.SetAlignment(StringAlignmentNear);
	fmt.SetLineAlignment(StringAlignmentNear);

	CString tmp="";
	//获取所有已经安装的字体系列
	InstalledFontCollection installedFontCollection;
	int ffcount=installedFontCollection.GetFamilyCount();
	FontFamily *fontfamily = ::new FontFamily[ffcount];
	installedFontCollection.GetFamilies(ffcount, fontfamily, &ffcount);
	int index=0;
	//访问fontfamily数组的每一个成员
	for( int i=0; i<ffcount; i++)
	{
		//获取当前字体系列名称
		WCHAR name[LF_FACESIZE];
		fontfamily[i].GetFamilyName(name);
		CString t=name;
		CString s; s.Format(_T("%s%s"), (i? _T(", "):_T("")), t);
		tmp+=s;
		index++;
	}
	::delete []fontfamily;

	//在窗口中输出所有的字体系列名
	RectF r(0,10,MyClient.Width,MyClient.Height);
	MyDrawString(graphics, tmp, font, solidBrush, r, fmt);
	//输出字体系列信息
	tmp.Format("在你的系统中已经安装的字体有%d种，其名称分别为:\n",index);
	MyDrawString(graphics, tmp,font,solidBrush, Point(0,0));
}

//启用增强型选择对话框表单
void Font_EnhanceFontDialog_Click()
{
	MyDrawString(GetGraphics(), "无增强型选择对话框表单",
		Font(L"Arial",12), SolidBrush(Color::Red), Point(0,0));
/*
	Form3 f= Form3();
	f.ShowDialog();
*/
}


//使用不同的字体边缘处理方式
void Font_UsingTextRenderHint_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brs(Color::Black);
	FontFamily  fontFamily(L"Arial");
	Font        font(&fontFamily, 60, FontStyleRegular, UnitPixel);

	//使用不同的边缘处理方式输出六行文本
	for (int i=TextRenderingHintSystemDefault; i<=TextRenderingHintClearTypeGridFit; i++)
	{
		//设置边缘处理方式
		graphics.SetTextRenderingHint((TextRenderingHint)i);
		//输出文本
		MyDrawString(graphics, "Render",font,brs, PointF(0, 0));
		//绘图平面下移地行
		graphics.TranslateTransform(0, font.GetHeight(&graphics));
	}
}
//使用私有字体集合
void Font_Privatefontcollection_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	PointF      pointF(0.0f, 10.0f);
	SolidBrush  solidBrush(Color::Red);
	//创建私有字体集
	PrivateFontCollection privateFontCollection;

	//在私有字体集中追迷你繁启体字库文件"繁启体.TTF"
	WCHAR fontfile[]= L"c:\\繁启体.TTF";
	if (Ok != privateFontCollection.AddFontFile(fontfile))
	{
		AfxMessageBox("字体文件加载失败\n出错啦！");
		return;
	}

	//从私有字体集合中构造繁启体，大小为35像素
	FontFamily pFontFamily(L"迷你繁启体", &privateFontCollection);
	Font tmpFont(&pFontFamily, 35);
	//输出繁启体文字
	MyDrawString(graphics, "沉舟侧畔千帆过", tmpFont,solidBrush, pointF);
	//垂直坐标一移一行，行高为  字体的高度
	pointF.Y +=tmpFont.GetHeight(&graphics);
	MyDrawString(graphics, "病树前头万木春", tmpFont,solidBrush, pointF);
}

//在私有字体集合中使用多种字体
void Font_Privatefontcollection2_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	PointF      pointF(0.0f, 10.0f);
	SolidBrush  solidBrush(Color::Red);
	//创建私有字体集
	PrivateFontCollection privateFontCollection;
	//在私有字体集中追加三个不同的字体文件
	privateFontCollection.AddFontFile(L"C:\\WINDOWS\\Fonts\\STCAIYUN.TTF");
	privateFontCollection.AddFontFile(L"C:\\WINDOWS\\Fonts\\SIMLI.TTF");
	privateFontCollection.AddFontFile(L"C:\\WINDOWS\\Fonts\\Arial.ttf");

	FontFamily fontfamily[200];
	int ffcount=privateFontCollection.GetFamilyCount();
	if (ffcount>200) ffcount=200;
	privateFontCollection.GetFamilies(ffcount, fontfamily, &ffcount);
	int index=0;
	//访问私有字体集合中的所有字体系列
	for(int i=0; i<ffcount; i++)
	{
		Font tmpFont(&fontfamily[i], 35);
		//获取当前字体系列名称
		WCHAR name[LF_FACESIZE];
		fontfamily[i].GetFamilyName(name);
		CString s; s.Format(_T("字体名:  %s"), name);
		//输出繁启体文字
		MyDrawString(graphics, s, tmpFont, solidBrush, pointF);
		graphics.TranslateTransform(0, tmpFont.GetHeight(&graphics));
	}
/*
	//通过访问PrivateFontCollection类的Families数组成员来字体
	for(int index=0;index< privateFontCollection..Families.Length;index++)
	{
		Font tmpFont(privateFontCollection.Families[index].Name,35);
		//输出繁启体文字
		MyDrawString(graphics, "字体名:  "+privateFontCollection.Families[index].Name,
			tmpFont,solidBrush, pointF);
		graphics.TranslateTransform(0,tmpFont.Height);
	}
*/
}
//检查字体风格是否可用
void Font_IsStyleAvailable_Click()
{

	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Gray);
	PointF      pointF(10.0f, 0.0f);
	SolidBrush  solidBrush(Color::Black);
	//信息输出所使用的字体
	Font msgfont(L"Arial",12);

	//创建私有字体集
	PrivateFontCollection privateFontCollection;
	//在私有字体集中追加三个字体文件
	//黑体
	privateFontCollection.AddFontFile(L"C:\\windows\\Fonts\\simhei.ttf");
	//Courier New字体
	privateFontCollection.AddFontFile(L"C:\\windows\\Fonts\\CourBI.ttf");
	//华文隶书
	privateFontCollection.AddFontFile(L"C:\\windows\\Fonts\\STLITI.ttf");

	CString     familyName;
	CString     tmpmsg;

	//查询私有字体集中字体系列数量
	int count=privateFontCollection.GetFamilyCount();
	//获取字体系列数组
	FontFamily *pFontFamily = ::new FontFamily[count];			
	//将字体系列中的字体名中加入pFontFamily中
	privateFontCollection.GetFamilies(count, pFontFamily, &count);

	/*对私有字体集中每一个字体系列进行五种字体风格
	的查询，如果字体风格可用，使用该风格进行文本绘制
	*/
	for(int j = 0; j< count; ++j)
	{
		//从字体系列中获取字体名
		WCHAR name[LF_FACESIZE];
		pFontFamily[j].GetFamilyName(name);
		familyName=name;
		// 常规风格是否可用
		if(pFontFamily[j].IsStyleAvailable(FontStyleRegular))
		{
			tmpmsg="  字体的常规风格可用";
			//构造字体
			FontFamily fm(CWideCharString(familyName), &privateFontCollection);
			Font tmpFont(&fm, 12, FontStyleRegular, UnitPixel);
			//输出使用常规风格的字体
			MyDrawString(graphics, familyName+tmpmsg,tmpFont,solidBrush,pointF );
			//垂直坐标一移一行，行高为  字体的高度
			pointF.Y += tmpFont.GetHeight(&graphics);
		}
		else
		{
			MyDrawString(graphics, familyName+tmpmsg+
				CString(L"  字体的常规风格不可用"),msgfont,solidBrush,pointF);
			pointF.Y += msgfont.GetHeight(&graphics);
		}
		tmpmsg.Empty();

		// 粗体风格是否可用
		if(pFontFamily[j].IsStyleAvailable(FontStyleBold))
		{
			tmpmsg="  字体的粗体风格可用";
			//构造字体
			FontFamily fm(CWideCharString(familyName), &privateFontCollection);
			Font tmpFont(&fm, 12, FontStyleBold, UnitPixel);
			//输出使用常规风格的字体
			MyDrawString(graphics, familyName+tmpmsg,tmpFont,solidBrush,pointF );
			//垂直坐标一移一行，行高为  字体的高度
			pointF.Y += tmpFont.GetHeight(&graphics);
		}
		else
		{
			MyDrawString(graphics, familyName+tmpmsg+
				CString("  字体的粗体风格不可用"),msgfont,solidBrush,pointF);
			pointF.Y += msgfont.GetHeight(&graphics);
		}
		tmpmsg.Empty();

		// 斜体风格是否可用
		if(pFontFamily[j].IsStyleAvailable(FontStyleItalic))
		{
			tmpmsg="  字体的斜体风格可用";
			//构造字体
			FontFamily fm(CWideCharString(familyName),&privateFontCollection);
			Font tmpFont(&fm, 12, FontStyleItalic, UnitPixel);
			//输出使用常规风格的字体
			MyDrawString(graphics, familyName+tmpmsg,tmpFont,solidBrush,pointF );
			//垂直坐标一移一行，行高为  字体的高度
			pointF.Y += tmpFont.GetHeight(&graphics);
		}
		else
		{
			MyDrawString(graphics, familyName+tmpmsg+
				"  字体的斜体风格不可用",msgfont,solidBrush,pointF);
			pointF.Y += msgfont.GetHeight(&graphics);
		}
		tmpmsg.Empty();

		// 查询下划线风格是否可用
		if(pFontFamily[j].IsStyleAvailable(FontStyleUnderline))
		{
			tmpmsg="  字体的下划线风格可用";
			//构造字体
			FontFamily fm(CWideCharString(familyName),&privateFontCollection);
			Font tmpFont(&fm, 12, FontStyleUnderline, UnitPixel);
			//输出使用常规风格的字体
			MyDrawString(graphics, familyName+tmpmsg,tmpFont,solidBrush,pointF );
			//垂直坐标一移一行，行高为  字体的高度
			pointF.Y += tmpFont.GetHeight(&graphics);
		}
		else
		{
			MyDrawString(graphics, familyName+tmpmsg+
				"  字体的下划线风格不可用",msgfont,solidBrush,pointF);
			pointF.Y += msgfont.GetHeight(&graphics);
		}
		tmpmsg.Empty();

		// 查询强调线风格是否可用
		if(pFontFamily[j].IsStyleAvailable(FontStyleStrikeout))
		{
			tmpmsg="  字体的强调线风格可用";
			//构造字体
			FontFamily fm(CWideCharString(familyName),&privateFontCollection);
			Font tmpFont(&fm, 12, FontStyleStrikeout, UnitPixel);
			//输出使用常规风格的字体
			MyDrawString(graphics, familyName+tmpmsg,tmpFont,solidBrush,pointF );
			//垂直坐标一移一行，行高为  字体的高度
			pointF.Y += tmpFont.GetHeight(&graphics);
		}
		else
		{
			MyDrawString(graphics, familyName+tmpmsg+
				"  字体的强调线风格不可用",msgfont,solidBrush,pointF);
			pointF.Y += msgfont.GetHeight(&graphics);
		}
		tmpmsg.Empty();

		// 在不同的字体系列之间加上间隔线
		graphics.DrawLine(&pen,0,(int )pointF.Y,400,(int)pointF.Y);
		pointF.Y += 10.0f;
	}
	::delete []pFontFamily;
}
//获取字体的大小
void Font_Size_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	PointF      pointF(0.0f, 0.0f);
	SolidBrush  solidBrush(Color::Black);

	CString infoString;
	int  ascent;
	float  ascentPixel;            
	int  descent;               
	float  descentPixel;          
	int  lineSpacing;           
	float  lineSpacingPixel;      

	FontFamily   fontFamily(L"Arial");
	//创建一个大小为16像素的Aria字体
	Font  font(&fontFamily, 16, FontStyleRegular, UnitPixel);
	Font  font2(&fontFamily, 14, FontStyleRegular, UnitPixel);

	// 显示字体大小
	infoString.Format("font的Size属性值为%.2f",font.GetSize());
	MyDrawString(graphics, infoString,font2,solidBrush,pointF);
	// 下移一行
	pointF.Y += font2.GetHeight(&graphics);
	//显示字体高度：像素
	infoString.Format("font的Height属性值为%.2f", font.GetHeight(&graphics));
	MyDrawString(graphics, infoString,font2,solidBrush,pointF);
	// 下移一行
	pointF.Y += font2.GetHeight(&graphics);

	// 显示字体系列的高度(设计单位)
	infoString.Format("使用fontFamily.GetEmHeight函数返回的字体高度为 %d 个设计单位。"
		,fontFamily.GetEmHeight(FontStyleRegular));
	MyDrawString(graphics, infoString,font2,solidBrush,pointF);

	// 下移两行(Height属性的值是字体的高度，单位为像素)
	pointF.Y += 2.0f*font2.GetHeight(&graphics);

	// 获取字体的Ascent(上部距离)
	ascent = fontFamily.GetCellAscent(FontStyleRegular);

	//将上部距离的设计单位转换成像素单位
	ascentPixel= 
		font.GetSize() * ascent / fontFamily.GetEmHeight(FontStyleRegular);
	infoString.Format("上部距离为 %d个设计单位, %.2f个像素。",
		ascent, ascentPixel);
	MyDrawString(graphics, infoString,font2,solidBrush,pointF);

	// 下移一行
	pointF.Y += font2.GetHeight(&graphics);
	// 获取字体的Descent(下部距离),设计单位
	descent = fontFamily.GetCellDescent(FontStyleRegular);

	//将下部距离的设计单位转换成像素单位
	descentPixel = 
		font.GetSize() * descent / fontFamily.GetEmHeight(FontStyleRegular);
	infoString.Format("下部距离为%d 个设计单位, %.2f个像素。",
		descent, descentPixel);
	MyDrawString(graphics, infoString,font2,solidBrush,pointF);

	// 下移一行
	pointF.Y += font2.GetHeight(&graphics);
	//获取行距(设计单位)
	lineSpacing = fontFamily.GetLineSpacing(FontStyleRegular);
	//将行距的设计单位转换成像素单位
	lineSpacingPixel = 
		font.GetSize() * lineSpacing / fontFamily.GetEmHeight(FontStyleRegular);
	infoString.Format("行距为%d 个设计单位, %.2f 像素。",
		lineSpacing, lineSpacingPixel);
	MyDrawString(graphics, infoString,font2,solidBrush,pointF);
}
//设置文本输出基线
void Font_BaseLine_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	FontFamily   fontFamily(L"Arial");
	//创建一个大小为60像素的Aria字体
	Font  font(&fontFamily, 60, FontStyleRegular, UnitPixel);
	//获取当前窗口的矩形宽、高
	int  cy=MyClient.Height;
	int cx=MyClient.Width;

	Pen pen(Color::Blue, 1);
	SolidBrush brush(Color::Blue);

	//将窗口垂直方向的1/2部分作为基线
	float yBaseline = cy / 2.f;
	//绘制基线
	graphics.DrawLine(&pen, PointF(0, yBaseline), PointF((REAL)cx,yBaseline));
	//得到字体高度
	float cyLineSpace = font.GetHeight(&graphics);
	//获取行距
	int   iCellSpace  = fontFamily.GetLineSpacing(FontStyleRegular);
	//得到上半部分距离
	int   iCellAscent = fontFamily.GetCellAscent(FontStyleRegular);
	//计算文本输出的起始位置相对于基线的偏移
	float cyAscent    = cyLineSpace * iCellAscent / iCellSpace;

	//从中央向上绘制两条直线，间隔为cyAscent
	graphics.DrawLine(&pen, 
		PointF(0, yBaseline-cyAscent), PointF(cx,yBaseline-cyAscent));
	graphics.DrawLine(&pen, 
		PointF(0, yBaseline-2.0f*cyAscent), PointF(cx,yBaseline-2.0f*cyAscent));

	//分别在两条基线上输出文本
	MyDrawString(graphics, "AaFfgSs}", font,brush, PointF(0,yBaseline - cyAscent));
	MyDrawString(graphics, "AaFfgSs}",font,brush, PointF(0,yBaseline - 2.0f*cyAscent));

}

void Font_DrawString_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//输出文本
	CString msg="示例文本";

	Font myFont(L"宋体", 16);
	RectF layoutRect(50, 50, 200, 50);
	//设置对齐方式
	StringFormat format;
	format.SetAlignment(StringAlignmentCenter);
	SolidBrush blackBrush(Color::Black);

	// 绘制文本
	MyDrawString(graphics, msg, myFont, blackBrush, layoutRect, format);
	// 绘制文本输出的矩形区域
	Pen pen(Color::Black, 3);
	graphics.DrawRectangle(&pen, layoutRect);

}

void Font_MeasureString_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//设置一个包含三行文本的字符串
	CString txtOut="123456789\n";
	txtOut+="ABCDEFGHIJKLM\n";
	txtOut+="一二三四五六七八九";

	FontFamily   fontFamily(L"Arial");
	//创建两个个大小不同的Aria字体
	Font  font(&fontFamily, 30, FontStyleRegular, UnitPixel);
	Font  font2(&fontFamily, 14, FontStyleRegular, UnitPixel);
	SolidBrush brush(Color::Black);

	StringFormat fmt;
	fmt.SetAlignment(StringAlignmentCenter);
	fmt.SetLineAlignment(StringAlignmentCenter);

	SizeF stringSize, strSize(1000,1000);			
	//测量输出字符串所需要的矩形空间
	CWideCharString txtOutW(txtOut);
	graphics.MeasureString(txtOutW, txtOutW.GetLength(), &font, strSize, &fmt, &stringSize);

	CString tmp;
	tmp.Format("输出字符串所需要的宽度为:%2f  高度为%2f", stringSize.Width,stringSize.Height);

	// 绘制输出文本的限制矩形
	Pen pen(Color::Red);
	graphics.DrawRectangle(&pen,
		10.0f,10.0f,stringSize.Width,stringSize.Height);
	//输出字符串的测量信息
	MyDrawString(graphics, txtOut, font, brush,
		RectF(10.0f,10.0f,stringSize.Width,stringSize.Height),fmt);
	graphics.TranslateTransform(0,10+stringSize.Height);
	MyDrawString(graphics, tmp,font2,brush, PointF(0,0));
}
//计算在指定的区域中显示的字符总数及行数
void Font_MeasureString2_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	CString txtOut="123456789";
	txtOut+="ABCDEFGHIJKLM";
	txtOut+="一二三四五六七八九";

	FontFamily   fontFamily(L"Arial");
	//创建两个个大小不同的Aria字体
	Font  font(&fontFamily, 30, FontStyleRegular, UnitPixel);
	Font  font2(&fontFamily, 14, FontStyleRegular, UnitPixel);
	//设置文本输出矩形
	RectF layoutRect(10, 10,100,100);
	SolidBrush brush(Color::Black);

	//设置文本显示格式
	StringFormat fmt;		
	fmt.SetAlignment(StringAlignmentCenter);
	fmt.SetLineAlignment(StringAlignmentCenter);

	int codepointsFitted=0;
	int linesFilled=0;

	SizeF stringSize;
	//计算指定的区域能够显示的字符总数及行数
	CWideCharString txtOutW(txtOut);
	graphics.MeasureString(txtOutW, txtOutW.GetLength(), 
		&font, SizeF(layoutRect.Width,layoutRect.Height),
		&fmt, &stringSize, &codepointsFitted, &linesFilled);

	CString tmp;
	tmp.Format("欲输出的字串共%d个字符\n其中,在指定的输出矩形中\n只输出了%d行共%d个字符",
		txtOutW.GetLength(), linesFilled, codepointsFitted);

	// 绘制指定的文本输出区域
	Pen pen(Color::Blue,2);
	graphics.DrawRectangle(&pen, layoutRect);
	//在指定的区域矩形中显示文本
	MyDrawString(graphics, txtOut, font, brush, layoutRect, fmt);

	//输出字符串的测量信息
	graphics.TranslateTransform(0,10+stringSize.Height);
	MyDrawString(graphics, tmp, font2, brush, PointF(0,0));
}
//文本的分栏输出
void Font_ColumnTextOut_Click()
{
	CString s_Filename;

	//假设读取 <exePath> ../ReadMe.txt
	TCHAR ModuleDirectory[_MAX_PATH];
	::GetModuleFileName(NULL, ModuleDirectory, _MAX_PATH);
	TCHAR *p=::_tcsrchr(ModuleDirectory, '\\'); *p=0;
	p=::_tcsrchr(ModuleDirectory, '\\'); *p=0;
	::_tcscat(ModuleDirectory, "\\ReadMe.txt");

	s_Filename=ModuleDirectory;

	FILE *stream = ::fopen(s_Filename, "rt");
	if (!stream)
		return;

	CString str;

	//读取所有的文件内容	
	char buffer[1024]="";
	while (!feof(stream))
	{
		CString s;
		::fgets(buffer, 1024, stream);
		s=buffer; s.TrimLeft(); s.TrimRight(); s+="\r\n";
		str+=s;
	}
	//关闭文件
	fclose(stream);

	//定义栏宽及栏与栏之间的间隔
	int COLUMWIDTH=256;
	int SPACE=10;

	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brush(Color::Black);
	Font myFont(L"宋体", 10);
	int codepointsFitted=0;
	int linesFilled=0;

	//设置输出格式
	StringFormat format;
	//禁用自动剪载
	format.SetFormatFlags(StringFormatFlagsNoClip);
	//输出文本以单词结束
	format.SetTrimming(StringTrimmingWord);

	CWideCharString strW(str);
	//从左至右按列(栏)输出文本
	for (int x = 0; strW.GetLength()> 0&&x<MyClient.Width; x +=(COLUMWIDTH+SPACE))
	{
		//设置文本对应的矩形区域(一栏)
		RectF layoutRect(x, 0, COLUMWIDTH,MyClient.Height-myFont.GetHeight(&graphics));
		SizeF stringSize;
		//计算指定的区域能够显示的字符总数及行数
		graphics.MeasureString(strW, strW.GetLength(),
			&myFont, SizeF(layoutRect.Width,layoutRect.Height),
			&format, &stringSize, &codepointsFitted, &linesFilled);

		//显示一栏文本
		graphics.DrawString(strW, strW.GetLength(), &myFont, layoutRect, &format, &brush); 
		//去掉已经输出的字符，以便下一栏能够正常显示			  
		strW=strW.Mid(codepointsFitted);
	}
}
//设置文本的去尾方式
void Font_StirngTrimming_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush  solidBrush(Color::Black); 
	FontFamily  fontFamily(L"Times New Roman");
	//用于文本输出的字体
	Font        font(&fontFamily, 25, FontStyleRegular, UnitPixel);

	Pen pen(Color::Red);
	StringFormat stringFormat;
	//用于提示信息的字体及格式
	Font        font2(&fontFamily, 14, FontStyleRegular, UnitPixel);
	//设置文本输出的格式
	StringFormat msgFormat;
	msgFormat.SetAlignment(StringAlignmentCenter);
	msgFormat.SetLineAlignment(StringAlignmentCenter);

	//提示信息输出区域
	RectF outrect(30, 100, 160, font2.GetHeight(&graphics)*2);

	//去尾方式：Character
	stringFormat.SetTrimming(StringTrimmingCharacter);
	//输出文本
	CString text="One two three four five seven eight nine ten";
	MyDrawString(graphics, text, font, solidBrush, 
		RectF(30, 30, 160, 60), stringFormat);

	//绘制文本输出区域
	graphics.DrawRectangle(&pen, 30, 30, 160, 60);
	//输出提示信息
	MyDrawString(graphics, "Character",font2,solidBrush,outrect, 
		msgFormat);

	//绘图平面沿水平方向平移160个像素
	graphics.TranslateTransform(160,0);

	//更改去尾方式：Word
	stringFormat.SetTrimming(StringTrimmingWord);
	MyDrawString(graphics, text,font,solidBrush,Rect(30, 30, 160, 60), stringFormat);
	graphics.DrawRectangle(&pen, 30, 30, 160, 60);
	MyDrawString(graphics, "Word",font2,solidBrush,outrect, msgFormat);


	//更改去尾方式：EllipsisCharacter
	graphics.TranslateTransform(160,0);
	stringFormat.SetTrimming(StringTrimmingEllipsisCharacter);
	MyDrawString(graphics, text,font,solidBrush, Rect(30, 30, 160, 60), stringFormat);
	graphics.DrawRectangle(&pen, 30, 30, 160, 60);
	MyDrawString(graphics, "EllipsisCharacter",font2,solidBrush,outrect, msgFormat);


	//更改去尾方式：EllipsisWord
	graphics.TranslateTransform(160,0);
	stringFormat.SetTrimming(StringTrimmingEllipsisWord);
	MyDrawString(graphics, text,font,solidBrush, Rect(30, 30, 160, 60), stringFormat);
	graphics.DrawRectangle(&pen, 30, 30, 160, 60);
	MyDrawString(graphics, "EllipsisWord",font2,solidBrush,outrect, msgFormat);

	//更改去尾方式：EllipsisPath
	graphics.TranslateTransform(160,0);
	stringFormat.SetTrimming(StringTrimmingEllipsisPath);
	MyDrawString(graphics, text,font,solidBrush, Rect(30, 30, 160, 60), stringFormat);
	graphics.DrawRectangle(&pen, 30, 30, 160, 60);
	MyDrawString(graphics, "EllipsisPath",font2,solidBrush,outrect, msgFormat);

}
//文本输出的剪裁处理
void Font_TextOutClip_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush  solidBrush(Color::Black); 
	FontFamily  fontFamily(L"宋体");
	Font        font(&fontFamily, 25, FontStyleRegular, UnitPixel);

	Pen pen(Color::Red);
	StringFormat stringFormat;
	RectF outtext(10, 10, 120, 45);
	//使用默认值输出文本
	CString text="文本的剪裁示意";
	MyDrawString(graphics, text,font,solidBrush,outtext, 
		stringFormat);
	//绘制文本输出区域
	graphics.DrawRectangle(&pen, outtext.X,
		outtext.Y,outtext.Width,outtext.Height);

	//在水平方向平移170个像素更
	graphics.TranslateTransform(120,0);
	RectF out2=outtext;
	//将输出区域的高度调整为字体高度的整数倍
	out2.Height=font.GetHeight(&graphics)*2;
	MyDrawString(graphics, text,font,solidBrush,out2, stringFormat);
	//绘制文本输出区域
	graphics.DrawRectangle(&pen, out2.X,
		out2.Y,out2.Width,out2.Height);

	graphics.TranslateTransform(120,0);
	//在输出文本时不使用剪截
	stringFormat.SetFormatFlags(StringFormatFlagsNoClip);
	MyDrawString(graphics, text,font,solidBrush,outtext, stringFormat);

	//绘制文本输出区域
	graphics.DrawRectangle(&pen, outtext.X,outtext.Y, outtext.Width,outtext.Height);
}
//测量文本局部输出区域
void Font_MeasureCharacterRanges_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	// 设置绘制文本、填充区域的画刷
	SolidBrush TextBrush(Color::Red);
	SolidBrush RegionBrush(_MakeA_RGB(100, Color::Black));
	Pen        blackPen(Color::Black);

	// 使用三个宽度不同的矩形区域绘制文本，示意不同局部区域测量结果
	RectF   layoutRect_A(20.0f, 20.0f, 120.0f, 180.0f);
	RectF   layoutRect_B(140.0f, 20.0f, 140.0f, 180.0f);
	RectF   layoutRect_C(280.0f, 20.0f, 180.0f, 180.0f);

	//添加需要输出的字串
	CString ts="秦时明月汉时关，";
	ts+="万里长征人未还。";
	ts+="但使龙城飞将在，";
	ts+="不教胡马度阴山。";

	// 在字串中需要局部测量的文本定义区域：每行诗的最后三个字
	CharacterRange charRanges[] =
	{ 
		CharacterRange(4, 3),
		CharacterRange(12, 3),
		CharacterRange(20, 3), 
		CharacterRange(28, 3)
	};

	// 绘制文本时使用的字体及大小 
	FontFamily   fontFamily(L"华文新魏");
	Font  myFont(&fontFamily, 25,  FontStyleItalic, UnitPixel);

	StringFormat strFormat;
	//指向需要局部测量区域的数组
	Region CharRangeRegions[4];

	//在字体格式中设置需要局部测量的区域
	strFormat.SetMeasurableCharacterRanges(4, charRanges);

	//在矩形layoutRect_A中对文本进行局部测量，测量的结果保存在CharRangeRegions中
	CWideCharString tsW(ts);
	graphics.MeasureCharacterRanges(tsW,tsW.GetLength(),&myFont,layoutRect_A, &strFormat,4,CharRangeRegions);
	//输出文本
	MyDrawString(graphics, ts, myFont,TextBrush,layoutRect_A, strFormat);
	//绘制文本输出边框
	graphics.DrawRectangle(&blackPen, layoutRect_A.X,layoutRect_A.Y,layoutRect_A.Width,layoutRect_A.Height);
	short   i;                 
	//填充由CharRangeRegions保存的区域
	for ( i = 0; i < 4; i++)
	{
		graphics.FillRegion(&RegionBrush, CharRangeRegions+i);
	}

	//在矩形layoutRect_B中对文本进行局部测量，测量的结果保存在CharRangeRegions中
	graphics.MeasureCharacterRanges(tsW, tsW.GetLength(), &myFont, layoutRect_B, &strFormat,4,CharRangeRegions);
	//输出文本
	MyDrawString(graphics, ts, myFont,TextBrush,layoutRect_B, strFormat );
	graphics.DrawRectangle(&blackPen, 
		layoutRect_B.X,layoutRect_B.Y,layoutRect_B.Width,layoutRect_B.Height);
	//填充区域
	for ( i = 0; i <4; i++)
	{
		graphics.FillRegion(&RegionBrush, CharRangeRegions+i);
	}

	//在矩形layoutRect_c中对文本进行局部测量，测量的结果保存在CharRangeRegions中
	graphics.MeasureCharacterRanges(tsW,tsW.GetLength(),&myFont,layoutRect_C, &strFormat,4,CharRangeRegions);
	//输出文本
	MyDrawString(graphics, ts, myFont,TextBrush,layoutRect_C, strFormat);
	graphics.DrawRectangle(&blackPen,
		layoutRect_C.X,layoutRect_C.Y,layoutRect_C.Width,layoutRect_C.Height);
	//填充区域
	for ( i = 0; i <4; i++)
	{
		graphics.FillRegion(&RegionBrush, CharRangeRegions+i);
	}

}
//控件文本输出方向
void Font_TextoutDirection_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//添加需要输出的字串
	CString ts="秦时明月汉时关，";
	ts+="万里长征人未还。";
	ts+="但使龙城飞将在，";
	ts+="不教胡马度阴山。";

	//设置输出字体
	FontFamily   fontFamily(L"幼圆");
	Font  myFont(&fontFamily, 20,  FontStyleBold, UnitPixel);
	SolidBrush brush(Color::Red);
	Pen pen(Color::Black);

	//设置输出区间
	Rect f(10,10,120,myFont.GetHeight(&graphics)*8);
	//构造StringFormat对象
	StringFormat strFormat;
	//从至左输出文本
	int flag=StringFormatFlagsDirectionRightToLeft;
	//文本在竖直方向上输出
	flag|=StringFormatFlagsDirectionVertical;
	//设置输出格式标志
	strFormat.SetFormatFlags(flag);

	//设置文本对齐方式
	strFormat.SetAlignment(StringAlignmentCenter);
	strFormat.SetLineAlignment(StringAlignmentCenter);

	//绘制输出区间及文本
	graphics.DrawRectangle(&pen,f);
	MyDrawString(graphics, ts,myFont,brush,f,strFormat);
}
//设置文本对齐方式
void Font_TextAlignment_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//将当前窗口大小信息保存
	Rect   rect(0, 0,
		MyClient.Width, MyClient.Height);
	SolidBrush brush(Color::Black);
	Pen pen(Color::Gray);

	//以当前窗口中心点为原点绘制坐标轴
	graphics.DrawLine(&pen,
		PointF(rect.Width/2,0), PointF(rect.Width/2,rect.Height));
	graphics.DrawLine(&pen,
		PointF(0,rect.Height/2), PointF(rect.Width,rect.Height/2));

	//将StringAlignment枚举的三种不同的对齐方式设置成数组成员，以便直接访问
	StringAlignment Align[3]=
	{
		StringAlignmentNear,
		StringAlignmentCenter,
		StringAlignmentFar
	};
	CString strAlign[] ={ "近", "中", "远" };

	//设置输出字体
	FontFamily   fontFamily(L"幼圆");
	Font  font(&fontFamily, 12,  FontStyleRegular);
	StringFormat strfmt;

	//分别在垂直和水平方向上使用三种不同的对齐方式
	for (int iVert = 0; iVert < 3; iVert++)
		for (int iHorz = 0; iHorz < 3; iHorz++)
		{
			//设置垂直对齐方式
			strfmt.SetLineAlignment((StringAlignment)Align[iVert]);
			//设置水平对齐方式
			strfmt.SetAlignment((StringAlignment)Align[iHorz]);
			//将对齐信息输出
			CString s;
			s.Format("水平对齐:%d\n垂直对齐:%d", strAlign[iVert],strAlign[iHorz]);

			//在当前区域中按照设置的对齐方式绘制文本
			MyDrawString(graphics, s,font,brush,rect, strfmt);
		}
}

void Font_TextAlignment2_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//将当前窗口大小信息保存
	Rect   rect(0, 0, MyClient.Width, MyClient.Height);
	SolidBrush brush(Color::Black);
	Pen pen(Color::Gray);

	//以当前窗口中心点为原点绘制坐标轴
	graphics.DrawLine(&pen,
		PointF(rect.Width/2,0), PointF(rect.Width/2,rect.Height));
	graphics.DrawLine(&pen,
		PointF(0,rect.Height/2), PointF(rect.Width,rect.Height/2));

	//将StringAlignment枚举的三种不同的对齐方式设置成数组成员，以便直接访问
	StringAlignment Align[3]=
	{
		StringAlignmentNear,
		StringAlignmentCenter,
		StringAlignmentFar
	};
	CString strAlign[]={ "近", "中", "远" };

	//设置输出字体
	FontFamily   fontFamily(L"幼圆");
	Font  font(&fontFamily, 12,  FontStyleRegular);
	StringFormat strfmt;

	//分别在垂直和水平方向上使用三种不同的对齐方式
	for (int iVert = 0; iVert < 3; iVert+=2)
		for (int iHorz = 0; iHorz < 3; iHorz+=2)
		{
			//设置垂直对齐方式
			strfmt.SetLineAlignment((StringAlignment)Align[iVert]);
			//设置水平对齐方式
			strfmt.SetAlignment((StringAlignment)Align[iHorz]);
			//将对齐信息输出
			CString s;
			s.Format("水平对齐:%d\n垂直对齐:%d", strAlign[iVert],strAlign[iHorz]);

			//在当前区域中按照设置的对齐方式绘制文本
			MyDrawString(graphics, s,font,brush, PointF(MyClient.Width/2,MyClient.Height/2),strfmt);
		}
}
//使用制表位
void Font_TextoutUsingTabs_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	StringFormat stringFormat;
	//输出文本使用的字体
	FontFamily   fontFamily(L"Arial");
	Font         font(&fontFamily, 30, FontStyleBold, UnitPixel);
	SolidBrush solidBrush(Color::Black);

	//不使用制表位信息的输出
	CString text = "A\tB\tC\t\t\tD";
	MyDrawString(graphics, text, font,  solidBrush, PointF(0,10), stringFormat);

	//设置制表位信息1
	float  tabs[]={40.0f, 30.0f,40};
	stringFormat.SetTabStops(0.0f, sizeof(tabs)/sizeof(float), tabs);

	//使用制表位信息的进行文本输出
	graphics.TranslateTransform(0,30);
	text="A\tB\tC\tD";
	MyDrawString(graphics, text, font,  solidBrush, PointF(0,10), stringFormat);

	//设置制表位信息2
	float tabs2[] = {60.0f, 60.0f, 60};
	stringFormat.SetTabStops(0.0f, 3, tabs2);
	graphics.TranslateTransform(0,30);
	MyDrawString(graphics, text, font, solidBrush, PointF(0,10), stringFormat);

	//获取制表信息	
	float  firstTabOffset = 0;
	float tabStops[3];
	stringFormat.GetTabStops(3, &firstTabOffset, tabStops);

	//清空制表位
	for(int j = 0; j <3; ++j)
		tabStops[j]=0;
	stringFormat.SetTabStops(0.0f, 3, tabStops);

	//在清空制表位信息后输出文本
	graphics.TranslateTransform(0,30);
	MyDrawString(graphics, text, font,  solidBrush, PointF(0,10), stringFormat);
}

//定义商品信息结构
struct SListItem
{
	public: CString name;//商品名
	public: float price;//单价
	public: float  num;//数量
	//初如化
	public: SListItem(CString p1, float p2,float p3) 
	{
		name = p1;
		price=p2;
		num = p3;    
	}
};
void Font_UsingTabs_Click()
{
	//初始化商品信息
	SListItem items[5]=
	{
		SListItem(L"MP3播放机",1228,10),
		SListItem(L"笔记本电脑",17200,1),
		SListItem(L"激光打印机",3200,5),
		SListItem(L"喷墨打印机",620,1),
		SListItem(L"数码相机",4800,5)
	};

	//定义表头
	CString title;
	title.Format("\n%s\t%s\t%s\t%s\n","商品名","单价","数量","总价");
	//格式化每种商品对应的字符串
	CString iteminfo[5];
	for (int i=0;i<5;i++)
	{
		//计算总价
		float total=items[i].price*items[i].num;
		//定制输出格式
		CString s;
		s.Format("%d\t%.2f\t%.2f\t%.2f\n",
			items[i].name,items[i].price,items[i].num,total);
		iteminfo[i]=s;
	}

	//在表格每一行的内容合并
	CString xxx;;
	for (i=0;i<5;i++)
		xxx+=iteminfo[i];
	//表头+表体
	title+=xxx;

	//在当前窗口中输出表格
	RectF  rect(0.0f,0.0f,
		MyClient.Width,MyClient.Height);

	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush   solidBrush(Color::Black);
	//定制输出字体
	FontFamily   fontFamily(L"宋体");
	Font         font(&fontFamily,
		16, FontStyleRegular, UnitPixel);

	StringFormat stringFormat;
	//设置制表位信息
	float   tabs[] = {120.0f, 120.0f,60.0f};
	stringFormat.SetTabStops(0.0f, sizeof(tabs)/sizeof(float), tabs);
	//输出表格
	MyDrawString(graphics, title,font, solidBrush,rect, stringFormat);
}

void Font_TextoutHotkeyPrefix_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush  solidBrush(Color::Black); 
	FontFamily  fontFamily(L"宋体");
	Font   font(&fontFamily, 20, FontStyleRegular, UnitPixel);
	Pen pen(Color::Red);

	StringFormat stringFormat;
	//显示快捷键字符，不解释"&"号
	stringFormat.SetHotkeyPrefix(HotkeyPrefixNone);
	MyDrawString(graphics, "工具栏(&T )\n状态栏(&S )", font, solidBrush,
		RectF(30, 30, 160, font.GetHeight(&graphics)*2),stringFormat);

	//绘制边框
	graphics.DrawRectangle(&pen, Rect(30, 30, 160,font.GetHeight(&graphics)*2));

	//解释""号为下划线
	stringFormat.SetHotkeyPrefix(HotkeyPrefixShow);
	graphics.TranslateTransform(0,font.GetHeight(&graphics)*3);
	MyDrawString(graphics, "工具栏(&T )\n状态栏(&S )", font, solidBrush,
		RectF(30, 30, 160, font.GetHeight(&graphics)*2),stringFormat);

	//绘制边框
	graphics.DrawRectangle(&pen, Rect(30, 30, 160,font.GetHeight(&graphics)*2));

	//隐藏""号
	graphics.TranslateTransform(0,font.GetHeight(&graphics)*3);
	stringFormat.SetHotkeyPrefix(HotkeyPrefixHide);
	MyDrawString(graphics, "工具栏(&T )\n状态栏(&S )", font, solidBrush,
		RectF(30, 30, 160, font.GetHeight(&graphics)*2),stringFormat);

	graphics.DrawRectangle(&pen, Rect(30, 30, 160,font.GetHeight(&graphics)*2));

}

void Font_TextoutShadow_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	//对文本使用去锯齿的边缘处理
	graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);

	FontFamily  fontFamily(L"华文楷体");
	Font        font(&fontFamily, 100, FontStyleBold, UnitPixel);

	//文本输出框
	RectF textout(font.GetHeight(&graphics),
		MyClient.Height/2,MyClient.Width,MyClient.Height);

	//在两个不同的位置绘制文本，形成阴影
	//solidBrush的色彩透明度为100，暗黑
	SolidBrush solidBrush(_MakeA_RGB(100,Color::Black));
	SolidBrush redBrush(Color::Red);
	MyDrawString(graphics, "阴影字",font, solidBrush,
		PointF(27.0f, 27.0f));
	MyDrawString(graphics, "阴影字",font, redBrush,
		PointF(12.0f, 20.0f));

	//另一种阴影字，阴影为线条
	//构造影线画刷
	HatchBrush brush_tmp(
		HatchStyleDarkDownwardDiagonal,Color::Black, Color::White);

	int reptime=40;
	//先画背景
	for(int i=0;i<reptime;i++)
		MyDrawString(graphics, "阴影字",font,brush_tmp,
			PointF(textout.X+i+2,textout.Y+i+2));

	//再画前景
	MyDrawString(graphics, "阴影字",font, redBrush, PointF(textout.X,textout.Y));
}

void Font_TextoutHashline_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	//对文本使用去锯齿的边缘处理
	graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);

	FontFamily  fontFamily(L"华文楷体");
	Font        font(&fontFamily, 100, FontStyleBold, UnitPixel);

	//文本输出框
	RectF textout(font.GetHeight(&graphics),0,MyClient.Width,MyClient.Height);
	//画刷样本显示框
	RectF brushdemo(0,0,font.GetHeight(&graphics),font.GetHeight(&graphics));
	//创建一个影线画刷
	HatchBrush brush_tmp(HatchStyle75Percent,Color::Black, Color::White);

	//设置文本输出格式：水平靠左、垂直居中
	StringFormat format;
	format.SetAlignment(StringAlignmentNear);
	format.SetLineAlignment(StringAlignmentCenter);

	//显示画刷样本
	graphics.FillRectangle(&brush_tmp,brushdemo);
	//使用画刷绘制文本
	MyDrawString(graphics, "影线字",font,brush_tmp,textout,format);

}

void Font_TextoutTexture_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	//对文本使用去锯齿的边缘处理
	graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);

	FontFamily  fontFamily(L"华文楷体");
	Font        font(&fontFamily, 70, FontStyleBold, UnitPixel);

	//文本输出框
	RectF textout(0,0,MyClient.Width,MyClient.Height);
	//画刷样本显示框
	RectF brushdemo(0,0,font.GetHeight(&graphics),font.GetHeight(&graphics));

	//装入纹理图片
	Bitmap image(L"TEXTURE3.bmp");
	//构造纹理画刷
	TextureBrush brush_tmp(&image);

	//设置文本输出格式：水平、垂直居中
	StringFormat format;
	format.SetAlignment(StringAlignmentCenter);
	format.SetLineAlignment(StringAlignmentCenter);

	//显示画刷样本
	graphics.FillRectangle(&brush_tmp,brushdemo);
	//使用画刷绘制文本
	MyDrawString(graphics, "纹理字",font,brush_tmp,textout,format);
}

void Font_TextoutGradient_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	//对文本使用去锯齿的边缘处理
	graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);

	FontFamily  fontFamily(L"华文楷体");
	Font        font(&fontFamily, 70, FontStyleBold, UnitPixel);

	RectF textout(0,0,MyClient.Width,MyClient.Height);
	//画刷样本显示框
	RectF brushdemo(0,0,font.GetHeight(&graphics),font.GetHeight(&graphics));
	//定义一个多色渐变画刷
	Color colors[] =
	{
		Color::Red,   // 红色
		Color::Green,//过度色为绿色
		Color::Blue  // 蓝色
	};
	float positions[] = 
	{
		0.0f,   // 由红色起
		0.3f,   // 绿色始于画刷长度的三分之一
		1.0f // 由蓝色止
	}; 

	//构造一条从黑色到白色的渐变画刷
	LinearGradientBrush brush_tmp(
		Point(0, 0), 
		Point(100, font.GetHeight(&graphics)), 
		Color::White,         // 黑
		Color::White);  // 白

	//设置渐变画刷的多色渐变信息
	//ColorBlend clrBlend(3);
	//clrBlend.Colors=colors;
	//clrBlend.Positions=positions;
	brush_tmp.SetInterpolationColors(colors, positions, 3);

	//设置文本输出格式：水平靠左、垂直居中
	StringFormat format;
	format.SetAlignment(StringAlignmentNear);
	format.SetLineAlignment(StringAlignmentCenter);
	//显示画刷样本
	graphics.FillRectangle(&brush_tmp,brushdemo);
	//使用画刷绘制文本
	MyDrawString(graphics, "渐变字",font,brush_tmp,textout,format);
}
//构造路径
void Path_Construct_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//定义构成路径的点坐标
	PointF data[]=
{
	PointF(40,140),
	PointF(275,200),
	PointF(105,225),
	PointF(190,300),
	PointF(50,350),
	PointF(20,180)
};

	//设置定义点的类型将每点都处理成直线的端点
	BYTE typeline[]=
{
	(BYTE)PathPointTypeLine,
	(BYTE)PathPointTypeLine,
	(BYTE)PathPointTypeLine,
	(BYTE)PathPointTypeLine,
	(BYTE)PathPointTypeLine,
	(BYTE)PathPointTypeLine
};

	//构造路径
	GraphicsPath tmp1(data,typeline,6);
	//填充路径
	graphics.FillPath(&SolidBrush(Color::Red),&tmp1);

	//绘制定义路径的端点
	for(int i=0;i<6;i++)
		graphics.FillEllipse(&SolidBrush(Color::Black),
			RectF(data[i].X-5,data[i].Y-5,10,10));

	//绘图平面右移
	graphics.TranslateTransform(360,0);

	//更改路径的端点类型
	BYTE type[]=
{
	(BYTE)PathPointTypeStart,
	(BYTE)PathPointTypeBezier,
	(BYTE)PathPointTypeBezier,
	(BYTE)PathPointTypeBezier,
	(BYTE)PathPointTypeLine,
	(BYTE)PathPointTypeLine
};
	//构造并填充路径
	GraphicsPath tmp(data,type,6);
	graphics.FillPath(&SolidBrush(Color::Red),&tmp);

	//绘制定义路径的端点
	for(i=0;i<6;i++)
		graphics.FillEllipse(&SolidBrush(Color::Black),
			RectF(data[i].X-5,data[i].Y-5,10,10));
}

void Path_AddLines_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue,2);
	//创建路径对象
	GraphicsPath path;

	Rect rect1(20, 20, 100, 200);
	Rect rect2(40, 40, 100, 200);
	//添加两段弧线
	path.AddArc(rect1, 0.0f, 180.0f); 
	path.AddArc(rect2, 0.0f, 180.0f); 
	graphics.DrawPath(&pen, &path);
}
//封闭图形
void Path_CloseFigure_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue,2);
	//创建路径对象
	GraphicsPath path;

	Rect rect1(20, 20, 100, 200);
	Rect rect2(40, 40, 100, 200);
	GraphicsPath path2;
	path2.AddArc(rect1, 0.0f, 180.0f);  
	//封闭弧线1
	path2.CloseFigure();
	path2.AddArc(rect2, 0.0f, 180.0f);  
	//封闭弧线2
	path2.CloseFigure();
	graphics.DrawPath(&pen, &path2);
}
//路径的填充
void Path_FillPath_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	GraphicsPath path1;
	GraphicsPath path;
	Pen pen(_MakeA_RGB(128, Color::Blue), 5);
	SolidBrush brush(Color::Red);

	//添加三条直线：开放的图形
	path1.AddLine(10,10,10,50);
	path1.AddLine(10,50,50,50);
	path1.AddLine(50,50,50,10);
	path1.StartFigure();

	//添加一个闭合的图形
	RectF rect(110,10,40,40);
	//开始第二个子路径的图形追加
	path1.AddRectangle(rect);
	//绘制、填充路径
	graphics.DrawPath(&pen, &path1);
	graphics.FillPath(&brush, &path1);

	//添加开放的弧线
	path.AddArc(0, 0, 150, 120, 30, 120);
	//添加封闭的椭圆
	path.AddEllipse(50, 50, 50, 100);

	//使用默认的填充方式填充路径
	graphics.FillPath(&brush, &path);
	graphics.DrawPath(&pen, &path);
}

void Path_AddSubPath_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue,2);
	Rect rect(0, 0, 100, 50);
	GraphicsPath path;

	//在路径中按垂直方向添加五段弧线
	path.AddArc(0, 0, 100, 50, 0.0f, 180.0f);
	path.AddArc(0, 30, 100, 50, 0.0f, 180.0f);
	path.AddArc(0, 60, 100, 50, 0.0f, 180.0f);
	path.AddArc(0, 90, 100, 50, 0.0f, 180.0f);
	path.AddArc(0, 120, 100, 50, 0.0f, 180.0f);
	graphics.DrawPath(&pen, &path);

	//获取路径所占区域
	RectF rect2; path.GetBounds(&rect2);

	//绘图平面右移
	graphics.TranslateTransform(rect2.Width+10,0);

	GraphicsPath path2;
	//构造第一个子路径
	path2.AddArc(0, 0, 100, 50, 0.0f, 180.0f);
	path2.AddArc(0, 30, 100, 50, 0.0f, 180.0f);
	path2.AddArc(0, 60, 100, 50, 0.0f, 180.0f);

	//在不封闭当前子路径的情况下开始第二个子路径的绘制
	path2.StartFigure();
	//添加弧线
	path2.AddArc(0, 90, 100, 50, 0.0f, 180.0f);

	//在封闭当前子路径的情况下开始第三个子路径的绘制
	path2.CloseFigure();
	path2.AddArc(0, 120, 100, 50, 0.0f, 180.0f);

	//绘制子路径
	graphics.DrawPath(&pen, &path2);
}

void Path_GetSubPath_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen bluePen(Color::Blue,3);
	GraphicsPath path;
	// 字路径1
	path.AddRectangle(Rect(20, 20, 60, 30));   
	// 字路径2
	path.AddLine(100, 20, 160, 50);            
	path.AddArc(180, 20, 60, 30, 0.0f, 180.0f);
	// 字路径3
	path.AddRectangle(Rect(260, 20, 60, 30)); 
	// 字路径4
	path.AddLine(340, 20, 400, 50);           
	path.AddArc(340, 20, 60, 30, 0.0f, 180.0f);
	path.CloseFigure();
	// 字路径5
	path.AddRectangle(Rect(420, 20, 60, 30));  
	//绘制路径
	graphics.DrawPath(&bluePen, &path);

	// 建立路径描述对象iterator
	GraphicsPathIterator iterator(&path);
	GraphicsPath subpath;
	int isClosed=false;
	int count=0;
	//连续调用两次NextSubpath,获取子路径
	//将路径的当前位置移动到1
	count =iterator.NextSubpath(&subpath, &isClosed);
	//将路径的当前位置移动到2
	count = iterator.NextSubpath(&subpath, &isClosed);

	//在第二行绘制提取的子路径
	graphics.TranslateTransform(0,50);   
	graphics.DrawPath(&bluePen, &subpath);

	//复位所有的位置移动信息
	iterator.Rewind();
	count = iterator.NextSubpath(&subpath, &isClosed);
	//在第三行绘制新抽取的子路径
	graphics.TranslateTransform(0,50);   
	Pen redPen(Color::Red,3);
	graphics.DrawPath(&redPen, &subpath);

	//连续调用两次NextSubpath，以获取子路径的定义点信息
	int start=0;
	int end=0;
	CString msg;
	//复位所有的位置移动信息
	iterator.Rewind();
	count = iterator.NextSubpath(&start, &end, &isClosed);
	//保存位置索引信息
	msg.Format(_T("第一次移动子路径的定义点起止位置为%d\t和\t%d\n"),start,end);
	count = iterator.NextSubpath(&start, &end, &isClosed);
	CString s;
	s.Format(_T("第二次移动子路径的定义点起止位置为%d\t和\t%d\n"),start,end);
	msg+=s;
	//绘制子路径的定义点位置索引信息
	FontFamily  fontFamily(L"宋体");
	Font font(&fontFamily,12);
	graphics.TranslateTransform(0,60);
	MyDrawString(graphics, msg,font,SolidBrush(Color::Black), PointF(0,0));
}

void Path_GetPoints_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//创建路径对象
	GraphicsPath path;
	//添加直线
	path.AddLine(20, 100, 150, 120);
	//添加矩形
	path.AddRectangle(Rect(40, 30, 20, 60));
	//添加椭圆
	path.AddEllipse(Rect(70, 30, 100, 40));
	//添加曲线　
	Point points[] =
	{
		Point(300, 40),
		Point(350, 60),
		Point(300, 80),
		Point(300, 100),
		Point(350, 150)
	};
	path.AddCurve(points,5);

	//绘制路径
	Pen pen(Color::Blue);
	graphics.DrawPath(&pen, &path);

	// 获取定义路径的点总数
	int count =path.GetPointCount();
	//绘制点定义路径的点
	SolidBrush brush(Color::Red);
	PointF *points0 = new PointF[count];
	path.GetPathPoints(points, count);
	for(int j = 0; j < count; ++j)
	{
		graphics.FillEllipse(
			&brush, 
			points0[j].X - 3.0f, 
			points0[j].Y - 3.0f,
			6.0f,
			6.0f);
	}
	delete points0;
	/*另外一一种遍历数组的方式
	foreach( PointF x in path.PathPoints)
		graphics.FillEllipse(
			brush, 
			x.X - 3.0f, 
			x.Y - 3.0f,
			6.0f,
			6.0f);
	*/
}

void Path_PathData_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//曲线的定义点
	Point points[] =
{
	Point(40, 60), 
	Point(50, 70), 
	Point(30, 90)
};

	Pen pen(Color::Red, 2);
	GraphicsPath path;
	//弧线
	path.AddArc(175, 50, 50, 50, 0.0f, -180.0f);
	//直线
	path.AddLine(100, 0, 250, 20);
	path.StartFigure();
	//直线
	path.AddLine(50, 20, 5, 90);
	//曲线
	path.AddCurve(points, 3);
	path.AddLine(50, 150, 150, 180);
	path.CloseAllFigures();
	//绘制路径
	graphics.DrawPath(&pen, &path);
	//获取PathData属性值
	PathData pathData; 
	path.GetPathData(&pathData);
	SolidBrush brush(Color::Red);

	//绘制定义点
	for (int i=0; i<pathData.Count; i++)
		graphics.FillEllipse(&SolidBrush(Color::Black),
			pathData.Points[i].X - 5.0f,pathData.Points[i].Y - 5.0f,10.0f,10.0f);
	//输出每一个路径定义点的类型
	FontFamily  fontFamily(L"宋体");
	Font font(&fontFamily,12);
	RectF rect;
	path.GetBounds(&rect);
	graphics.TranslateTransform(rect.Width+10,0);
	for (i=0; i<pathData.Count; i++)
	{
		CString msg;
		msg.Format("第%d点的类型为:\t%d", i+1, pathData.Types[i]);
		MyDrawString(graphics, msg,
			font,SolidBrush(Color::Black), PointF(0,(i+1)*font.GetHeight(&graphics)));
	}
}

void Path_ViewPointFLAG_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	graphics.ScaleTransform(0.8f,0.8f);


	SolidBrush brush(Color::Red);
	//创建一个具有四个子路径的路径
	GraphicsPath path;
	path.AddRectangle(Rect(20, 20, 60, 30));
	path.AddLine(100, 20, 160, 50);
	path.AddArc(180, 20, 60, 30, 0, 180);
	path.AddRectangle(Rect(260, 20, 60, 30));
	path.AddLine(340, 20, 400, 50);
	path.AddArc(340, 20, 60, 30, 0, 180);
	path.CloseAllFigures();
	//填充路径
	graphics.FillPath(&brush, &path);

	//将路径的标记信息传入GraphicsPathIterator对象
	GraphicsPathIterator iterator(&path);

	//获取标记点信息
	int start=0;
	int end=0;
	int count=0;
	//获取第一个标记区间
	count = iterator.NextMarker(&start, &end);
	//为点坐标、类型分配空间
	PointF *points = new PointF[count];
	BYTE *types = new BYTE[count];
	//从iterator复制信息
	iterator.CopyData(points, types, start, end);
	//根据复制的信息新创建一个路径
	GraphicsPath pathnew(points, types, count);

	//在新位置绘制路径的定义点
	graphics.TranslateTransform(0,60);
	for(int j = 0; j < count; ++j)
		graphics.FillEllipse(&SolidBrush(Color::Black),points[j].X - 2.0f,
			points[j].Y - 2.0f,	4.0f,4.0f);

	//填充新创建的路径
	graphics.TranslateTransform(0,60);
	graphics.FillPath(&brush, &pathnew);
	graphics.TranslateTransform(0,60);

	//输出所有的标记点信息
	CString msg;
	for(j = 0; j < count; ++j)
	{
		CString s;
		s.Format("第%s的信息:X=%.2f\tY=%.2f\t类型=%d\n",
			j,points[j].X,points[j].Y,types[j]);
		msg+=s;
	}

	//绘制字符串
	FontFamily  fontFamily(L"宋体");
	Font   font(&fontFamily, 12, FontStyleRegular, UnitPixel);
	MyDrawString(graphics, msg, font,SolidBrush(Color::Black), PointF(0,0));

	delete types;
	delete points;
}

void Path_SubPathRange_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brush(Color::Red);
	//创建一个具有五个子路径的路径
	GraphicsPath path;
	// *************path.SetMarkers();**************
	//添加第一个子路径
	path.AddRectangle(Rect(20, 20, 60, 30));

	//添加第二个子路径
	path.AddLine(100, 20, 160, 50);
	//第二个标记将第二个子路径从中央截断
	path.SetMarker(); 
	path.AddArc(180, 20, 60, 30, 0, 180);

	//添加第三个子路径
	path.AddRectangle(Rect(260, 20, 60, 30));
	//第三个标记
	path.SetMarker(); 

	//添加第四个子路径
	path.AddLine(340, 20, 400, 50);
	path.AddArc(340, 20, 60, 30, 0, 180);

	//填充路径
	graphics.FillPath(&brush,&path);

	//将路径的标记信息传入GraphicsPathIterator对象
	GraphicsPathIterator iterator(&path);
	int d=iterator.GetSubpathCount();
	//获取标记点信息
	int start;
	int end;
	int count;
	//移到第二个标记
	count = iterator.NextMarker(&start, &end);
	//移到第三个标记
	count = iterator.NextMarker(&start, &end);
	//为点坐标、类型分配空间
	PointF *points = new PointF[count];
	BYTE *types = new BYTE[count];

	//从iterator复制信息
	iterator.CopyData(points, types, start, end);
	//根据复制的信息新创建一个路径
	GraphicsPath pathnew(points, types, count);

	//在新位置绘制标记点
	graphics.TranslateTransform(0,60);
	for(int j = 0; j < count; ++j)
		graphics.FillEllipse(&SolidBrush(Color::Black),
			points[j].X - 2.0f,points[j].Y - 2.0f,
			4.0f,
			4.0f);

	//填充新创建的路径
	graphics.TranslateTransform(0,60);
	graphics.FillPath(&brush,&pathnew);

	//输出所有的标记点信息
	CString msg;
	for( j = 0; j < count; ++j)
	{
		CString s;
		s.Format(_T("第%d点的信息:X=%.2f\tY=%.2f \t类型＝%d\n"),
			j,points[j].X,points[j].Y,types[j]);
		msg+=s;
	}

	FontFamily  fontFamily(L"宋体");
	Font        font(&fontFamily, 12, FontStyleRegular, UnitPixel);
	//绘制字符串
	graphics.TranslateTransform(0,60);
	MyDrawString(graphics, msg, font,SolidBrush(Color::Black), PointF(0,0));

	delete points;
	delete types;
}


void Path_Flatten_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//曲线定义点
	Point pts[] =
	{
		Point(20,50), 
		Point(60,70), 
		Point(80,10), 
		Point(120,50)
	};

	GraphicsPath path;
	path.AddCurve(pts, 4);
	path.AddEllipse(160, 10, 150, 80);
	path.AddBezier(20, 100, 20, 150, 50, 80, 100, 60);

	//按照默认的方式绘制路径
	Pen pen(Color::Black,3);
	graphics.DrawPath(&pen, &path);
	//获取路径点信息
	PathData pathData;
	path.GetPathData(&pathData);

	// 绘制路径定义点
	SolidBrush brush(Color::Red);
	for(int j = 0; j <pathData.Count; ++j)
	{
		graphics.FillEllipse(&brush, pathData.Points[j].X - 3.0f,
			pathData.Points[j].Y - 3.0f,6.0f, 6.0f);
	}

	//绘图平面下移100个单位 
	graphics.TranslateTransform(0,120);
	//进行曲线转  
	path.Flatten(&Matrix(), 14.0f);
	pen.SetColor(Color::Green);
	//绘制转换后的路径  
	graphics.DrawPath(&pen, &path);
}


void Path_Warp_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	// 创建一个全部由线条组成的路径
	PointF points[] =
	{
		PointF(20.0f, 60.0f),
		PointF(30.0f, 90.0f),
		PointF(15.0f, 110.0f),
		PointF(15.0f, 145.0f),
		PointF(55.0f, 145.0f),
		PointF(55.0f, 110.0f),
		PointF(40.0f, 90.0f),
		PointF(50.0f, 60.0f)
	};

	GraphicsPath path;
	path.AddLines(points, sizeof(points)/sizeof(PointF));
	path.CloseFigure();

	// 绘制扭曲前的路径
	Pen bluePen(Color::Blue,3);
	graphics.DrawPath(&bluePen, &path);

	// 定义放置路径的源矩形
	RectF srcRect(10.0f, 50.0f, 50.0f, 100.0f);
	//定义矩形映射的目标点
	PointF destPts[] =
	{
		PointF(220.0f, 10.0f),
		PointF(280.0f, 10.0f),
		PointF(100.0f, 150.0f),
		PointF(300.0f, 150.0f)
	};

	//扭曲矩形
	path.Warp(destPts, 4, srcRect);
	// 绘制扭曲后的路径
	graphics.DrawPath(&bluePen, &path);

	// 绘制源矩形和目标的多边形
	Pen blackPen(Color::Black,1);
	graphics.DrawRectangle(&blackPen, 
		srcRect.X,srcRect.Y,srcRect.Width,srcRect.Height);
	graphics.DrawLine(&blackPen, destPts[0], destPts[1]);
	graphics.DrawLine(&blackPen, destPts[0], destPts[2]);
	graphics.DrawLine(&blackPen, destPts[1], destPts[3]);
	graphics.DrawLine(&blackPen, destPts[2], destPts[3]);
}

void Path_Transform_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	GraphicsPath path;
	//添加一个矩形子路径   
	path.AddRectangle(Rect(40, 10, 200, 50));
	//绘制坐标变换前的路径
	graphics.DrawPath(&Pen(Color::Blue,4), &path);

	//旋转路径
	Matrix matrix;
	matrix.Rotate(15.0f);
	path.Transform(&matrix);
	//绘制进行坐标变换后的路径
	graphics.DrawPath(&Pen(Color::Red,4), &path);
}

void Path_Widen_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen bluePen(Color::Blue,1);
	Pen greenPen(Color::Green, 10);
	//定义曲线
	PointF points[] =
	{
		PointF(10.0f, 10.0f),
		PointF(130.0f, 90.0f),
		PointF(140.0f, 60.0f),
		PointF(60.0f, 90.0f)
	};

	GraphicsPath path;
	//添加四条曲线
	path.AddClosedCurve(points, 4);

	//复制三个相同的路径进行轮廓拓宽处理
	GraphicsPath *path2=path.Clone();
	GraphicsPath *path3=path.Clone();
	GraphicsPath *path4=path.Clone();

	//使用宽度为10的画笔绘制路径
	graphics.DrawPath(&Pen(Color::Blue,10), &path);
	RectF rect; path.GetBounds(&rect);

	//使用绿色画笔拓宽路径轮廓
	path2->Widen(&greenPen);
	//绘图平面右移，绘制拓宽的路径
	graphics.TranslateTransform(rect.Width+10,0);
	graphics.DrawPath(&bluePen, path2);

	//下移
	graphics.TranslateTransform(-rect.Width,rect.Height);
	//使用间断线风格的绿色画笔拓宽路径
	greenPen.SetDashStyle(DashStyleDash);
	path3->Widen(&greenPen);
	//填充路径
	graphics.FillPath(&SolidBrush(Color::Red), path3);

	//对画笔进行缩放变换 
	Pen pentmp(Color::Blue);
	pentmp.ScaleTransform(3.0f, 20.0f);
	path4->Widen(&pentmp);
	//绘图平面右移
	graphics.TranslateTransform(rect.Width,0);
	graphics.DrawPath(&bluePen, path4);

	delete path2;
	delete path3;
	delete path4;
}

void Path_WidenDemo_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen bluePen(Color::Blue,1);
	Pen greenPen(Color::Green, 20);
	GraphicsPath path;
	//添加一条直线
	path.AddLine(10,20,100,20);
	GraphicsPath *path2=path.Clone();

	PathData pathData;
	PathData pathData2;

	path.GetPathData(&pathData);
	int num1=path.GetPointCount();

	//保存路径的定义点信息
	CString msg;
	for(int i=0;i<num1;i++)
	{
		CString s;
		s.Format("点%d的坐标分别为：X=%.2f\tY=%.2f\n",
			i,pathData.Points[i].X,pathData.Points[i].Y);
		msg+=s;
	}
	//绘制路径
	graphics.DrawPath(&Pen(Color::Blue), &path);

	//使用绿色画笔拓宽路径轮廓
	path2->Widen(&greenPen);
	path2->GetPathData(&pathData2);
	int num2=path2->GetPointCount();

	//绘图平面右移，绘制拓宽的路径
	RectF rect; path.GetBounds(&rect);
	graphics.TranslateTransform(rect.Width*2,0);
	graphics.DrawPath(&bluePen, path2);
	graphics.ResetTransform();
	//保存拓宽后路径的定义点信息
	CString msg2;
	for(i=0;i<num2;i++)
	{
		CString s;
		s.Format("拓宽后的路径点%d的坐标分别为：X=%.2f\tY=%.2f\n",
			i,pathData2.Points[i].X,pathData2.Points[i].Y);
		msg2+=s;
	}

	//输出路径拓宽前后的定义点坐标位置信息
	FontFamily  fontFamily(L"宋体");
	Font  font(&fontFamily, 12, FontStyleRegular, UnitPixel);
	graphics.TranslateTransform(0,120);
	MyDrawString(graphics, msg,font,SolidBrush(Color::Black), PointF(0,0));	
	graphics.TranslateTransform(0,font.GetHeight(&graphics)*(num1+1));
	MyDrawString(graphics, msg2,font,SolidBrush(Color::Black), PointF(0,0));	

}

void Region_FromPath_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	//设定文本输出质量
	graphics.SetTextRenderingHint(TextRenderingHintClearTypeGridFit);
	graphics.SetSmoothingMode(SmoothingModeAntiAlias);

	FontFamily   fontFamily(L"隶书");
	//创建路径区域
	GraphicsPath path;

	//向区域中追加文本
	path.AddString(L"文字区域",4,&fontFamily,
		(int)FontStyleRegular,100.0f, Point(0, 0), &StringFormat() );

	Pen pen(Color::Red);
	//绘制路径
	graphics.DrawPath(&pen, &path);
	graphics.TranslateTransform(0,80);
	//从路径中构造区域
	Region region(&path);
	//填充区域	
	graphics.FillRegion(&SolidBrush(Color::Red),&region);
}

void Region_Calculate_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	FontFamily  fontFamily(L"宋体");
	Font   font(&fontFamily, 16, FontStyleRegular, UnitPixel);

	SolidBrush solidBrush2(Color::Red);
	SolidBrush solidBrush(Color::Green);
	Pen pen(Color::Cyan);

	//定义多边形的端点坐标
	Point points[]=
	{
		Point(75, 0), 
		Point(100, 50), 
		Point(150, 50), 
		Point(112, 75),
		Point(150, 150), 
		Point(75, 120), 
		Point(10, 150), 
		Point(37, 75), 
		Point(0, 50), 
		Point(50, 50),
		Point(75, 0)
	};

	//创建路径并添加线条
	GraphicsPath path;
	path.AddLines(points, sizeof(points)/sizeof(Point));

	//缩小路径
	Matrix matrix;
	matrix.Scale(0.5f,0.5f);
	path.Transform(&matrix);

	//获取路径所占的矩形区域
	RectF tmp; path.GetBounds(&tmp);

	//定义区域2
	RectF rect(0,10,tmp.Width,50); 
	//计算文本信息输出区域
	RectF textout(0,tmp.Height,tmp.Width,font.GetHeight(&graphics)*2);

	//设置文本输出格式：水平居中、垂直靠下
	StringFormat format;
	format.SetAlignment(StringAlignmentCenter);
	format.SetLineAlignment(StringAlignmentFar);

	//填充路径 
	graphics.FillPath(&solidBrush2,&path);

	graphics.TranslateTransform(tmp.Width+10,0);
	//填充矩形 
	graphics.FillRectangle(&solidBrush,rect);

	//从路径中创建区域
	Region region(&path); 

	//求交集
	region.Intersect(rect);
	graphics.TranslateTransform(tmp.Width+10,0);
	//填充交集
	graphics.FillRegion(&solidBrush2, &region);
	MyDrawString(graphics, "交集",font,SolidBrush(Color::Black),textout,format);	
	//绘制路径所占的矩形区域
	graphics.DrawRectangle(&pen,tmp.X,tmp.Y,tmp.Width,tmp.Height);

	//求并集
	Region region2(&path); 
	region2.Union(rect);
	graphics.TranslateTransform(tmp.Width+10,0);
	graphics.FillRegion(&solidBrush2, &region2);
	MyDrawString(graphics, "并集",font,solidBrush,textout,format);	
	//绘制路径所占的矩形区域
	graphics.DrawRectangle(&pen,tmp.X,tmp.Y,tmp.Width,tmp.Height);

	//换行输出区域运算结果
	graphics.TranslateTransform(-(tmp.Width+10)*3,tmp.Height+textout.Height);

	//求异并集
	Region region3(&path); 
	region3.Xor(rect);
	//填充异并集
	graphics.FillRegion(&solidBrush2, &region3);
	MyDrawString(graphics, "异并集",font,SolidBrush(Color::Black),textout,format);	
	//绘制路径所占的矩形区域
	graphics.DrawRectangle(&pen,tmp.X,tmp.Y,tmp.Width,tmp.Height);

	//求补集
	Region region4(&path); 
	region4.Complement(rect);
	graphics.TranslateTransform(tmp.Width+10,0);
	//填充补集
	graphics.FillRegion(&solidBrush2, &region4);
	MyDrawString(graphics, "补集",font,SolidBrush(Color::Black),textout,format);	
	//绘制路径所占的矩形区域
	graphics.DrawRectangle(&pen,tmp.X,tmp.Y,tmp.Width,tmp.Height);

	//求排斥集
	Region region5(&path); 
	region5.Exclude(rect);
	graphics.TranslateTransform(tmp.Width+10,0);
	//填排斥集
	graphics.FillRegion(&solidBrush2, &region5);
	MyDrawString(graphics, "排斥集",font,SolidBrush(Color::Black),textout,format);	
	graphics.DrawRectangle(&pen,tmp.X,tmp.Y,tmp.Width,tmp.Height);
}

void Region_GetRects_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush solidBrush(Color::Red);
	Pen pen(Color::Black);
	GraphicsPath path;
	Matrix matrix;

	//从路径中创建区域
	path.AddEllipse(10, 0, 80, 120);
	Region pathRegion(&path);    
	//填充区域
	graphics.FillRegion(&solidBrush, &pathRegion);

	//获取路径的矩形组成集信息（不使用变换）
	int count = pathRegion.GetRegionScansCount(&matrix);
	RectF *rects = new RectF[count];
	pathRegion.GetRegionScans(&matrix, rects, &count);
	//绘制平面右移，以绘制矩形集中所有的矩形
	graphics.TranslateTransform(90,0); 
	for(int i=0; i<count; i++)
		graphics.DrawRectangle(&pen, rects[i]);	

	//实施变换
	matrix.Scale(1.0f,0.75f);
	matrix.Shear(0.2f,0.3f);
	//获取路径的矩形组成集信息（使用变换）
	count = pathRegion.GetRegionScansCount(&matrix);
	delete rects;
	rects = new RectF[count];
	pathRegion.GetRegionScans(&matrix, rects, &count);
	//绘制平面右移，以绘制变换后的矩形集
	graphics.TranslateTransform(90,0); 
	for(i=0; i<count; i++)
		graphics.DrawRectangle(&pen, rects[i]);	

	delete rects;
}

void Transform_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush mySolidBrush1(Color::Blue);
	SolidBrush mySolidBrush2(_MakeA_RGB(155,Color::Chocolate));
	GraphicsPath myGraphicsPath;
	Rect myRect(60, 60, 60, 60);
	//在路径中添加矩形
	myGraphicsPath.AddRectangle(myRect);
	//填充路径
	graphics.FillPath(&mySolidBrush1, &myGraphicsPath);

	// 进行坐标变换
	Matrix myPathMatrix;
	//水平方向扩大两倍，垂直方向保持不变
	myPathMatrix.Scale(2, 1);
	myPathMatrix.Rotate(30.0f);
	//对路径实话坐标变换
	myGraphicsPath.Transform(&myPathMatrix);

	//填充变换后的路径
	graphics.FillPath(&mySolidBrush2, &myGraphicsPath);
}

void TranslateTransform_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//装入图片
	Bitmap image(L"nemo.bmp");
	//定义图片的显示区域
	Rect rect(0,0,110,70);
	for(int i=0;i<10;i++)
	{
		//显示图片
		graphics.DrawImage(&image,rect);
		//绘图平面右移，每次沿水平方面右移110个像素
		graphics.TranslateTransform(110,0);
	}
}

void RotateTransform_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//装入图片
	Bitmap image(L"nemo.bmp");

	//获取当前窗口的中心点
	Rect rect(0,0,MyClient.Width,MyClient.Height);
	PointF center(rect.Width/2,rect.Height/2);

	float offsetX=0;
	float offsetY=0;
	offsetX=center.X-image.GetWidth()/2;
	offsetY=center.Y-image.GetHeight()/2;
	//构造图片显示区域:让图片的中心点与窗口的中心点一致
	RectF picRect(offsetX,offsetY,image.GetWidth(),image.GetHeight());
	PointF Pcenter(picRect.X+picRect.Width/2,
		picRect.Y+picRect.Height/2);

	//让图片绕中心旋转一周
	for(int i=0;i<361;i+=10)
	{
		// 绘图平面以图片的中心点旋转
		graphics.TranslateTransform(Pcenter.X, Pcenter.Y);
		graphics.RotateTransform(i);
		//恢复绘图平面在水平和垂直方向的平移
		graphics.TranslateTransform(-Pcenter.X, -Pcenter.Y);
		//绘制图片并延时
		graphics.DrawImage(&image,picRect);	
		::Sleep(100);
		//重置绘图平面的所有变换
		graphics.ResetTransform();
	}
}

void DrawWatch_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Rect clientrect(0,0,
		MyClient.Width,MyClient.Height);

	//设置路码表的高和宽
	float WIDTH=clientrect.Width/2;
	float HEIGHT =clientrect.Height/2;

	//设置文本输出外观
	graphics.SetSmoothingMode(SmoothingModeAntiAlias);

	FontFamily  fontFamily(L"Times New Roman");
	Font   font(&fontFamily, 14, FontStyleBold, UnitPixel);

	//将绘图平面的坐标原点移到窗口中心
	graphics.TranslateTransform(WIDTH /2,HEIGHT/2);
	//绘制仪表盘
	graphics.FillEllipse(&SolidBrush(Color::Black),
		HEIGHT/-2,HEIGHT/-2,HEIGHT, HEIGHT);
	//输出文本
	MyDrawString(graphics, "公里/小时",font,SolidBrush(Color::Green),
		PointF(-26,HEIGHT/-4-font.GetHeight(&graphics)));

	//绘制刻度标记
	graphics.RotateTransform(225);
	for(int x = 0; x<55;x++)
	{
		graphics.FillRectangle(&SolidBrush(Color::Green),
			Rect(-2, -(HEIGHT/2-2), 3, 15));
		graphics.RotateTransform(5);
	}

	//重置绘图平面的坐标变换
	graphics.ResetTransform();

	graphics.TranslateTransform(WIDTH /2,HEIGHT/2);
	graphics.RotateTransform(225);
	int sp = 0;
	CString tmp;
	//绘制刻度值(整数类)
	for(x = 0; x<7;x++)
	{
		tmp.Format("%d",sp);

		//绘制红色刻度
		graphics.FillRectangle(&SolidBrush(Color::Red),Rect(-3,(HEIGHT/2 -2)* -1,6,25));
		//绘制数值
		MyDrawString(graphics, tmp,font,SolidBrush(Color::Green), PointF(tmp.GetLength()*(-6),
			(HEIGHT/-2) + 25));
		//旋转45度
		graphics.RotateTransform(45);
		sp += 20;
	}

	//重置绘图平面的坐标变换
	graphics.ResetTransform();
	graphics.TranslateTransform(WIDTH /2,HEIGHT/2);

	//绘制指针在30公里/秒的情形
	float angle= 30*2.25f+ 225;
	graphics.RotateTransform((float)angle);

	Pen pen(Color::Blue,14);
	//设置线帽
	pen.SetEndCap(LineCapArrowAnchor);
	pen.SetStartCap(LineCapRoundAnchor);
	//画指针
	graphics.DrawLine(&pen, PointF(0,0), PointF(0,(-1)*(HEIGHT/2.75F)));

	graphics.ResetTransform();
	graphics.TranslateTransform(WIDTH /2,HEIGHT/2);
	//绘制中心点
	graphics.FillEllipse(&SolidBrush(Color::Black),-6,-9,14,14);
	graphics.FillEllipse(&SolidBrush(Color::Red),-7,-7,14,14);

	//绘制速度极限标记
	pen.SetWidth(4);
	pen.SetColor(Color::Black);
	pen.SetEndCap(LineCapRound);
	pen.SetStartCap(LineCapFlat);
	graphics.DrawLine(&pen, PointF(HEIGHT/15.75F,HEIGHT/3.95F),
		PointF(HEIGHT/10.75F,HEIGHT/5.2F));
	pen.SetColor(Color::Red);
	graphics.DrawLine(&pen, PointF(HEIGHT/15.75F,HEIGHT/3.95F),
		PointF(HEIGHT/15.75F,HEIGHT/4.6F));
}

void ScaleTransform_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Rect clientrect(0,0,
		MyClient.Width,MyClient.Height);
	//获取当前窗口的中心点
	float width=clientrect.Width/2;
	float height=clientrect.Height/2;
	PointF center(width,height);

	//设置矩形初始大小为30*30
	float offsetX=center.X-15;
	float offsetY=center.Y-15;

	//构造矩形的缩放区域:让矩形的中心点与窗口的中心点一致
	RectF rotateRect(offsetX,offsetY,30,30);
	PointF Pcenter(rotateRect.X+rotateRect.Width/2,
		rotateRect.Y+rotateRect.Height/2);

	//设置初始缩放倍数
	int scale=1;
	//对矩形rotateRect旋转360度并不断放大矩形
	for(int i=0;i<360;i+=60)
	{
		// 绘图平面以图片的中心点旋转
		graphics.TranslateTransform(Pcenter.X, Pcenter.Y);
		//在水平和垂直方向上同时扩大矩形
		graphics.ScaleTransform(scale,scale);
		graphics.RotateTransform(i);
		//恢复绘图平面在水平和垂直方向的平移
		graphics.TranslateTransform(-Pcenter.X, -Pcenter.Y);
		//绘制矩形并延时
		graphics.DrawRectangle(&Pen(Color::Black),
			rotateRect.X,rotateRect.Y,rotateRect.Width,rotateRect.Height);
		::Sleep(100);
		//重置绘图平面的所有变换
		graphics.ResetTransform();
		scale++;
	}
}

void RectScale_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Rect clientrect(0,0,
		MyClient.Width,MyClient.Height);
	//获取当前窗口的中心点
	float width=clientrect.Width/2;
	float height=clientrect.Height/2;
	PointF center(width,height);

	//设置矩形初始大小为30*30
	float offsetX=center.X-15;
	float offsetY=center.Y-15;

	//构造矩形的缩放区域:让矩形的中心点与窗口的中心点一致
	RectF rotateRect(offsetX,offsetY,30,30);
	PointF Pcenter(rotateRect.X+rotateRect.Width/2,
		rotateRect.Y+rotateRect.Height/2);

	//设置初始缩放倍数
	int scale=0;
	//对矩形rotateRect旋转360度并不断放大矩形
	for(int i=0;i<361;i+=60)
	{
		// 绘图平面以图片的中心点旋转
		graphics.TranslateTransform(Pcenter.X, Pcenter.Y);
		//在水平和垂直方向上同时增加矩形的宽度和高度
		rotateRect.Inflate(scale*15,scale*15);
		graphics.RotateTransform(i);
		//恢复绘图平面在水平和垂直方向的平移
		graphics.TranslateTransform(-Pcenter.X, -Pcenter.Y);
		//绘制图片并延时
		graphics.DrawRectangle(&Pen(Color::Black),
			rotateRect.X,rotateRect.Y,rotateRect.Width,rotateRect.Height);
		::Sleep(100);
		//重置对矩形大小的所有变换
		graphics.ResetTransform();
		rotateRect.Inflate(-scale*15,-scale*15);
		scale++;
	}

}

void FontRotate_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	FontFamily  fontFamily(L"宋体");
	Font        myFont(&fontFamily, 20, FontStyleBold, UnitPixel);
	SolidBrush redBrush(Color::Red);

	//设置文本输出区域
	RectF layoutRect(myFont.GetHeight(&graphics),myFont.GetHeight(&graphics),
		MyClient.Width/2,MyClient.Height/2);

	StringFormat format;
	//设置文本输出格式
	format.SetAlignment(StringAlignmentNear);
	format.SetLineAlignment(StringAlignmentCenter);
	//将文本的输出起点设置成窗口的中心
	graphics.TranslateTransform(layoutRect.Width,layoutRect.Height);

	//在旋转时每隔30度输出文本
	for(int i=0;i<360;i+=30)
	{
		//旋转绘图平面
		graphics.RotateTransform(i);
		MyDrawString(graphics, " 旋转字体",myFont, redBrush,
			layoutRect, format);
		//恢复所做的旋转
		graphics.RotateTransform(-i);
	}

}

void MirrorText_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	SolidBrush redBrush(Color::Red);

	//构造字体，用于镜像文本输出
	FontFamily  fontFamily(L"华文楷体");
	Font        myFont(&fontFamily,
		48, FontStyleRegular, UnitPixel);
	//构造英文字体，用于演示文本的输出方向
	FontFamily  fontFamily2(L"Courier New");
	Font        myFont2(&fontFamily2, 16, FontStyleRegular, UnitPixel);

	//设置文本输出区域
	RectF layoutRect(myFont.GetHeight(&graphics),myFont.GetHeight(&graphics),
		MyClient.Width/2,MyClient.Height/2);

	StringFormat format;

	//设置文本输出时精确位置
	//行距－下行部分　(设计单位)
	float ascent =fontFamily.GetLineSpacing(FontStyleRegular)- 
		fontFamily.GetCellDescent(FontStyleRegular);
	//行距－上行部分　(设计单位)
	float ascent2 =fontFamily.GetLineSpacing(FontStyleRegular)-
		fontFamily.GetCellAscent(FontStyleRegular);

	//将上、下部距离的设计单位转换成像素单位
	float ascentPixel = 	myFont.GetSize()*
		ascent /(fontFamily.GetEmHeight(FontStyleRegular));
	float ascentPixel2 = 	myFont.GetSize()* 
		ascent2 /(fontFamily.GetEmHeight(FontStyleRegular));

	//绘图平面下移
	graphics.TranslateTransform(0,MyClient.Height/4);
	//绘制正常方向的文本
	MyDrawString(graphics, "镜像输出",myFont,redBrush,
		PointF(0,-myFont.GetHeight(&graphics)+ascentPixel2), format);

	//绘图平面右移，演示当前文本输出文向
	graphics.TranslateTransform(200,0);
	CString msg;
	for(int i=0;i<3;i++)
	{
		msg.Format("Line %d...........",i);
		MyDrawString(graphics, msg,myFont2,redBrush, 
			PointF(0,myFont2.GetHeight(&graphics)*i),format);
	}

	//恢复对绘图平面的右移
	graphics.TranslateTransform(-200,0);

	//绘图平面在垂直方向倒置
	graphics.ScaleTransform(1,-1);
	//输出镜像文本
	MyDrawString(graphics, "镜像输出",myFont,SolidBrush(Color::Gray), 
		PointF(0,-ascentPixel), format);
	//绘图平面再次右移，演示当前文本输出文向
	graphics.TranslateTransform(200,0);
	for(i=0;i<3;i++)
	{
		msg.Format("Line %d...........",i);
		MyDrawString(graphics, msg,myFont2, SolidBrush(Color::Gray),
			PointF(0,myFont2.GetHeight(&graphics)*i), format);
	}

	//重置在绘图平面上进行的所有变换：演示水平镜像文本输出
	graphics.ResetTransform ( ) ; 
	//绘图平面下移
	graphics.TranslateTransform(MyClient.Width/2,
		MyClient.Height/2+myFont.GetHeight(&graphics)*2);
	//绘制正常方向的文本
	MyDrawString(graphics, "镜像输出",myFont, redBrush,
		PointF(0,0), format);
	//绘图平面在水平方向倒置
	graphics.ScaleTransform(-1,1);
	//输出水平镜像文本
	MyDrawString(graphics, "镜像输出",myFont, SolidBrush(Color::Gray),
		PointF(0,0), format);
}


void Matrix_ListElements_Click_1()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush redBrush(Color::Red);
	FontFamily  fontFamily(L"华文楷体");
	Font  myFont(&fontFamily,20,
		FontStyleRegular, UnitPixel);		

	//进行平移变换	
	graphics.TranslateTransform(10,10);
	graphics.TranslateTransform(20,10); 
	Matrix m;;
	graphics.GetTransform(&m);
	//获取已经实施在绘图平面的坐标变换
	CString msg;

	float x[6]; m.GetElements(x);
	//输出矩阵的每一个元素
	for(int i=0; i<6; i++)
	{			
		msg.Format("第%d个矩阵元素为%.2f",i,x[i]);
		MyDrawString(graphics, msg,myFont, redBrush,
			PointF(0, myFont.GetHeight(&graphics)*(i+1)));
	}
}

void MatrixPos_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue,4);
	Pen pen2(Color::Gray);

	FontFamily  fontFamily(L"宋体");
	Font  myFont(&fontFamily,
		20, FontStyleRegular, UnitPixel);

	//获取当前窗口的大小
	Rect rect(0,0,
		MyClient.Width,MyClient.Height);

	//设置定义椭圆的矩形
	Rect r(-40, -65,80, 130);
	Matrix matrix;
	graphics.TranslateTransform(rect.Width/2, rect.Height/2); 
	//使用默认的旋转顺序(MatrixOrderPrepend)
	graphics.RotateTransform(20);   
	//获取对绘图平面已经进行的坐标变换
	graphics.GetTransform(&matrix);
	//绘制椭圆
	graphics.DrawEllipse(&pen, r);

	//使用MatrixOrderAppend旋转顺序
	graphics.ResetTransform();
	graphics.TranslateTransform(rect.Width/2, rect.Height/2); 
	graphics.RotateTransform(20,MatrixOrderAppend);   
	//使用红色画笔绘制另一个椭圆
	graphics.DrawEllipse(&Pen(Color::Red,1), r);
	Matrix matrix2;
	graphics.GetTransform(&matrix2);

	//重置坐标变换、以窗口中心点为原点绘制坐标轴
	graphics.ResetTransform();
	graphics.DrawLine(&pen2, 0, rect.Height/2, 
		rect.Width, rect.Height/2);
	graphics.DrawLine(&pen2, rect.Width/2, 
		0, rect.Width/2, rect.Height);  

	CString msg;
	//获取矩阵元素值
	float x[6]; matrix.GetElements(x);
	//输出矩阵元素值
	int i=0;
	for (i=0; i<6; i++)
	{
		msg.Format("%8.2f",x[i]);
		//输出行向量
		if(i==1||i==3||i==5)
		{
			//垂直方向上下移一行
			graphics.TranslateTransform(0,myFont.GetHeight(&graphics));
			MyDrawString (graphics, msg, myFont, SolidBrush(Color::Black), PointF(0,0));
		}
	}
}

void Martrix_Invert_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen myPen(Color::Blue,4);
	Matrix matrix(1.0f, 0.0f, 0.0f, 1.0f, 30.0f, 20.0f);
	//检查矩阵是否可逆？
	if(!matrix.IsInvertible())
	{
		AfxMessageBox("该矩形为不可逆矩形，无法演示");
		return;
	}
	graphics.SetTransform(&matrix);
	for(int i=0;i<200;i++) 
	{
		//计算逆矩形
		matrix.Invert();
		//对绘图平面进行坐标变换
		graphics.SetTransform(&matrix);
		graphics.DrawRectangle(&myPen, 35, 25, 200, 100);  
	}
}

void Matrix_Multiply_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brush(Color::Blue);
	FontFamily  fontFamily(L"Arial");
	Font    myFont(&fontFamily,
		16, FontStyleRegular, UnitPixel);
	//加载图片
	Bitmap image(L"jieba.bmp");

	//缩放
	Matrix matrix1(0.80f, 0.0f, 0.0f, 0.8f, 0.0f, 0.0f); 
	//位移
	Matrix matrix2(1.0f, 0.0f, 0.0f, 1.0f, 20.0f, 10.0f);  
	//从右上往左下翻转图片：X轴与Y轴对调
	Matrix matrix3(0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f);

	//第一次追加变换
	matrix1.Multiply(&matrix2, MatrixOrderAppend);
	//第二次追加变换
	matrix1.Multiply(&matrix3,MatrixOrderAppend);
	//进行复合变换
	graphics.SetTransform(&matrix1);

	//绘制图片
	graphics.DrawImage(&image, 0, 0);  
	//获取已经作用在绘图平面上的坐标变换
	Matrix matrix;
	graphics.GetTransform(&matrix);
	graphics.ResetTransform();
	//在新位置上查看变换矩阵信息
	graphics.TranslateTransform(image.GetHeight(),0);

	//获取矩阵元素值
	float x[6]; matrix.GetElements(x);
	//输出每一个矩阵元素的值
	CString msg;
	int i=0;
	for(i=0; i<6; i++)
	{
		msg.Format("%6.2f",x[i]);
		//输出行向量
		if(i==1||i==3||i==5)
		{
			//垂直方向上下移一行
			graphics.TranslateTransform(0,myFont.GetHeight(&graphics));
			MyDrawString(graphics, msg,myFont,SolidBrush(Color::Black), 
				PointF(0,0));
		}
	}
}

void Matrix_TransformPoints_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush redBrush(Color::Red);
	SolidBrush blueBrush(Color::Blue);
	Pen pen1(Color::Blue,2);
	Pen pen2(Color::Red,1);

	//定义构成曲线的点坐标
	Point points[] =
	{
		Point(50, 100), 
		Point(100, 50),
		Point(150, 125),
		Point(200, 100),
		Point(250, 125),
	};

	//绘制曲线(未使用变换时)
	graphics.DrawCurve(&pen1, points, 5);
	//绘制曲线定义点信息
	for(int i=0;i<5;i++)	
	{
		graphics.FillEllipse(&blueBrush,
			points[i].X-5,points[i].Y-5,10,10);
	}

	//定义一个在竖直方向上缩放因子为0.5的矩阵
	Matrix matrix(1.0f, 0.0f, 0.0f, 0.5f, 0.0f, 0.0f);
	//对points数据中的每一个成员进行矩形运算
	matrix.TransformPoints(points);

	//绘制曲线(使用变换后)	
	graphics.DrawCurve(&pen2, points,5);

	//再次绘制曲线定义点信息
	for(i=0;i<5;i++)	
	{
		graphics.FillEllipse(&redBrush,
			points[i].X-5,points[i].Y-5,10,10);
	}
}

void Matrix_TransformPoints2_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//构造字体系列
	FontFamily   fontFamily(L"隶书");

	SolidBrush redBrush(Color::Red);
	//设置文本输出质量
	graphics.SetTextRenderingHint(TextRenderingHintClearTypeGridFit);
	graphics.SetSmoothingMode(SmoothingModeAntiAlias);

	//创建路径区域
	GraphicsPath path;
	//向区域中追加文本，字体大小为60
	path.AddString(L"文字特效",4 ,&fontFamily,(int)FontStyleRegular, 
		60, Point(0, 0), &StringFormat());

	//获取路径的点信息
	//获取路径的点类型信息
	PathData pathdata;
	path.GetPathData(&pathdata);

	//将文本在水平方向上缩小，在垂直方向上拉伸
	Matrix matrix(0.50f, 0.0f, 0.0f, 3.5f, 0.0f,0.0f);	

	//对points数据中的每一个成员进行矩形运算
	matrix.TransformPoints(pathdata.Points, pathdata.Count);
	//根据计算后的点重新构造路径
	GraphicsPath newpath(pathdata.Points,pathdata.Types,pathdata.Count);
	//填充路径
	graphics.FillPath(&redBrush,&newpath);

	//第二种特效
	Matrix matrix2(0.6f, 0.5f, 0.20f, 1.5f, 160.0f, -40.0f);
	PathData pathdata2;
	path.GetPathData(&pathdata2);
	//对所有的点进行计算
	matrix2.TransformPoints(pathdata2.Points, pathdata2.Count);
	//根据计算后的点重新构造路径
	GraphicsPath newpath2(pathdata2.Points,pathdata2.Types,pathdata2.Count);
	graphics.FillPath(&redBrush,&newpath2);
}

void Matrix_TransformVectors_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue, 7);
	pen.SetEndCap(LineCapArrowAnchor);
	SolidBrush brush(Color::Blue);

	// 定义一个点和一个向量
	PointF point[]={PointF(100, 50)};
	PointF vector[]={PointF(100, 50)};

	// 绘制点point
	graphics.FillEllipse(&brush, RectF(point[0].X-5, point[0].Y-5, 10, 10));
	//将点(10,10)与vector表示的位置连接起来
	graphics.DrawLine(&pen, PointF(10, 10), vector[0]);

	// 定义变换矩阵
	Matrix matrix(0.8f, 0.6f, -0.6f, 0.8f, 100.0f, 0.0f);
	//对点point的位置信息进行变换
	matrix.TransformPoints(point);
	//对点vector的位置信息进行二维向量变换
	matrix.TransformVectors(vector);

	// 绘制变换后的点
	pen.SetColor(Color::Red);
	brush.SetColor(Color::Red);
	graphics.FillEllipse(&brush, RectF(point[0].X - 5, point[0].Y - 5, 10, 10));
	//将点(10,10)与变换后的vector表示的位置连接起来
	graphics.DrawLine(&pen, PointF(10, 10), vector[0]); 
}

void Matrix_RotateAt_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Pen pen(Color::Blue,4);
	Pen pen2(Color::Gray);

	//获取当前窗口区域
	RectF rect(0,0,MyClient.Width,MyClient.Height);;
	//构造并平移矩阵到窗口中心点
	Matrix matrix;
	matrix.Translate(rect.Width/2, rect.Height/2);  

	//将绘图平面依次旋转一周
	for(int i=0;i<360;i+=30)
	{
		//旋转矩阵，相对于窗口中心点
		matrix.RotateAt(i, PointF(rect.Width/2, 
			rect.Height/2), MatrixOrderAppend);
		//将旋转后的矩阵作用于绘图平面
		graphics.SetTransform(&matrix);
		//绘制椭圆
		graphics.DrawEllipse(&pen, -80, -30, 160, 60);
		//重置作用在绘图平面是所有的变换
		graphics.ResetTransform();
	}

	//以窗口中心点为原点绘制坐标轴
	graphics.DrawLine(&pen2, PointF(0, rect.Height/2),
		PointF(rect.Width, rect.Height/2));
	graphics.DrawLine(&pen2, PointF(rect.Width/2, 0), 
		PointF(rect.Width/2, rect.Height));
}

void Matrix_Shear_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//装入图片
	Bitmap image(L"jieba.bmp");
	//定义图片的显示区域
	Rect rect(0,0,100,150);
	//绘制源图
	graphics.DrawImage(&image,rect);

	Matrix matrix;
	//设置水平投射因子
	matrix.Shear(0.8f,0.0f);
	//对绘图平面使用投射变换
	graphics.SetTransform(&matrix);
	graphics.TranslateTransform(100,0);
	//绘制投射变换后的图片
	graphics.DrawImage(&image,rect);

	graphics.ResetTransform();
	Matrix matrix2;
	//设置垂直投射因子
	matrix2.Shear(0.0f,0.8f);
	//对绘图平面使用投射变换
	graphics.SetTransform(&matrix2);
	graphics.TranslateTransform(200,0);
	//绘制投射变换后的图片
	graphics.DrawImage(&image,rect);
}

void Matrix_TextoutShear_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brush(Color::Blue);
	FontFamily  fontFamily(L"华文楷体");
	Font        myFont(&fontFamily, 20, FontStyleRegular, UnitPixel);

	Font myfont(L"Times New Roman", 100);	
	Matrix mymat;
	//投射
	mymat.Shear( -1.4f, 0.0f ) ;
	//缩放
	mymat.Scale( 1, 0.5f ) ;
	//平移
	mymat.Translate ( 236, 170 ) ; 
	//对绘图平面实施坐标变换、、
	graphics.SetTransform(&mymat);

	SolidBrush mybrush(Color::Gray);
	SolidBrush redbrush(Color::Red);
	//绘制阴影
	MyDrawString(graphics, "Hello",myfont,mybrush, PointF(0, 50));
	graphics.ResetTransform ( ) ;
	//绘制前景
	MyDrawString(graphics, "Hello",myfont,redbrush, PointF(0, 50));
	CString msg;
	//获取矩阵元素值
	float x[6]; mymat.GetElements(x);
	//输出每一个矩阵元素的值
	int i=0;
	for(; i<6; i++)
	{
		msg.Format("{0,%6.2f}",x[i]);
		//输出行向量
		if(i==1||i==3||i==5)
		{
			MyDrawString(graphics, msg,myFont,SolidBrush(Color::Black), 
				PointF(0,0));
			//垂直方向上下移一行
			graphics.TranslateTransform(0,myFont.GetHeight(&graphics));
		}
	}
}

void Matrix_ChangeFontHeight_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//构造字体系列
	FontFamily   fontFamily(L"隶书");
	//创建路径区域
	GraphicsPath path;
	SolidBrush redBrush(Color::Red);

	//设置文本输出质量
	graphics.SetTextRenderingHint(TextRenderingHintClearTypeGridFit);
	graphics.SetSmoothingMode(SmoothingModeAntiAlias);

	//向区域中追加文本，字体大小为80
	path.AddString(L"大小渐变",4,&fontFamily,(int)FontStyleRegular, 
		80, Point(0, 0), &StringFormat());
	//获取路径所占的矩形区域
	RectF bound; path.GetBounds(&bound);
	//获取路径区域的中心点
	float halfH=bound.Height/2;
	float halfW=bound.Width/2;

	//对路径实施变换，更改路径区域的中心点
	Matrix pathMartrix(1,0,0,1,-halfW,-halfH);
	path.Transform(&pathMartrix);

	//获取路径的点信息
	//获取路径的点类型信息
	PathData pathdata;
	path.GetPathData(&pathdata);

	//依次对路径的定义点的Y值进行缩放
	for(int i=0;i<pathdata.Count;i++)
	{
		//根据该点距路径起点的距离占整个路径长度的比例更改Y值
		pathdata.Points[i].Y*=2*(bound.Width-abs(pathdata.Points[i].X))/bound.Width;
	}

	//根据更改后的路径定义点重新构造路径
	GraphicsPath newpath(pathdata.Points,pathdata.Types,pathdata.Count);
	//将绘图平面的原点移到窗口中心
	graphics.TranslateTransform(MyClient.Width/2,MyClient.Height/2-40);
	//填充路径
	graphics.FillPath(&redBrush,&newpath);
}

void ColorMatrix_Start_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//加载图片
	Bitmap image(L"ColorInput.bmp");
	int width = image.GetWidth();
	int  height = image.GetHeight();
	ImageAttributes  imageAttributes;

	//定义色彩变换矩阵
	ColorMatrix colorMatrix=
	{
		2.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
		1.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};

	//启用色彩变换矩阵
	imageAttributes.SetColorMatrix(
		&colorMatrix, 
		ColorMatrixFlagsDefault,
		ColorAdjustTypeBitmap);

	//绘制源图
	graphics.DrawImage(&image, 0, 0);
	//使用色彩变换矩阵输出图片
	graphics.TranslateTransform(width+10,0);
	graphics.DrawImage(
		&image, 
		Rect(0, 0, width, height),
		0, 0,
		width, height,UnitPixel,
		&imageAttributes);
}

void TranslateColor_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//加载图片
	Bitmap  image(L"ColorBar.bmp");
	ImageAttributes  imageAttributes;
	int  width = image.GetWidth();
	int  height = image.GetHeight();

	//定义色彩变换矩阵
	ColorMatrix colorMatrix=
	{
		1.0f,  0.0f, 0.0f, 0.0f, 0.0f,
		0.0f,  1.0f, 0.0f, 0.0f, 0.0f,
		0.0f,  0.0f, 1.0f, 0.0f, 0.0f,
		0.0f,  0.0f, 0.0f, 1.0f, 0.0f,
		0.75f, 0.0f, 0.0f, 0.0f, 1.0f
	};

	//启用色彩变换矩阵
	imageAttributes.SetColorMatrix(&colorMatrix, 
		ColorMatrixFlagsDefault,ColorAdjustTypeBitmap);

	//绘制源图
	graphics.DrawImage(&image, 0, 0);
	//使用色彩变换矩阵输出图片
	graphics.TranslateTransform(width+10,0);
	graphics.DrawImage(&image, Rect(0, 0, width, height),
		0, 0,width, height,UnitPixel,&imageAttributes);
}

void ScaleColor_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//加载图片
	Bitmap          image(L"ColorBar.bmp");
	ImageAttributes imageAttributes;
	int             width = image.GetWidth();
	int             height = image.GetHeight();

	//定义色彩变换矩阵1
	ColorMatrix colorMatrix=
	{
		0.5f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.5f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.5f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};

	//定义色彩变换矩阵2
	ColorMatrix colorMatrix2=
	{
		0.5f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.5f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 500.5f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};

	//启用色彩变换矩阵1
	imageAttributes.SetColorMatrix(
		&colorMatrix, 
		ColorMatrixFlagsDefault,
		ColorAdjustTypeBitmap);

	//绘制源图
	graphics.DrawImage(&image, 0, 0);
	//使用色彩变换矩阵输出图片
	graphics.TranslateTransform(width+10,0);
	graphics.DrawImage(
		&image, 
		Rect(0, 0, width, height),
		0, 0,
		width, height,UnitPixel,
		&imageAttributes);

	//清除已经采取的色彩变换
	imageAttributes.ClearColorMatrix(ColorAdjustTypeBitmap);
	//重新加载另一变换矩阵Matrix2
	imageAttributes.SetColorMatrix(
		&colorMatrix2, 
		ColorMatrixFlagsDefault,
		ColorAdjustTypeBitmap);

	//演示使用Matrix2的色彩调整情况
	graphics.TranslateTransform(width+10,0);
	graphics.DrawImage(
		&image, 
		Rect(0, 0, width, height),
		0, 0,
		width, height,UnitPixel,
		&imageAttributes);
}

void RotateColor_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//加载图片
	Bitmap    image(L"Colorinput.bmp");
	int   width = image.GetWidth();
	int   height = image.GetHeight();
	float   degrees = 90;
	//从角度到弧度
	double           r = degrees * PI/ 180.0f;  
	ImageAttributes  imageAttributes;
	//绘制源图
	graphics.DrawImage(&image, 0, 0);

	//红色绕着蓝色旋转
	ColorMatrix colorMatrix=
	{
		(float)cos(r),  (float)sin(r), 0.0f, 0.0f, 0.0f,
		-(float)sin(r), (float)cos(r), 0.0f, 0.0f, 0.0f,
		0.0f,    0.0f,   1.0f, 0.0f, 0.0f,
		0.0f,    0.0f,   0.0f, 1.0f, 0.0f,
		0.0f,    0.0f,   0.0f, 0.0f, 1.0f
	};

	//使用色彩变换矩阵输出图片(R->B)
	graphics.TranslateTransform(width+10,0);
	//设置R->B色彩变换矩阵
	imageAttributes.SetColorMatrix(
		&colorMatrix, 
		ColorMatrixFlagsDefault,
		ColorAdjustTypeBitmap);
	graphics.DrawImage(
		&image, 
		Rect(0, 10, width, height),  
		0, 0,width,height,      
		UnitPixel,
		&imageAttributes);

	//清除已经采取的色彩变换
	imageAttributes.ClearColorMatrix(ColorAdjustTypeBitmap);

	//重新加载另一变换矩阵Matrix2
	//绿色绕着红色旋转
	ColorMatrix colorMatrix2=
	{
		1,  0, 0.0f, 0.0f, 0.0f,
		0, (float)cos(r), (float)sin(r), 0.0f, 0.0f,
		0.0f, -(float)sin(r), (float)cos(r), 0.0f, 0.0f,
		0.0f,    0.0f,   0.0f, 1.0f, 0.0f,
		0.0f,    0.0f,   0.0f, 0.0f, 1.0f
	};

	imageAttributes.SetColorMatrix(
		&colorMatrix2, 
		ColorMatrixFlagsDefault,
		ColorAdjustTypeBitmap);

	//在第二行输出
	graphics.ResetTransform();
	graphics.TranslateTransform(0,height+10);
	graphics.DrawImage(&image, 
		Rect(0, 0, width, height),
		0, 0,width, height,UnitPixel,
		&imageAttributes);

	//清除已经采取的色彩变换
	imageAttributes.ClearColorMatrix(ColorAdjustTypeBitmap);
	//蓝色绕着红色旋
	ColorMatrix colorMatrix3=
	{
		(float)cos(r),  0, -(float)sin(r), 0.0f, 0.0f,
		0, 1, 0.0f, 0.0f, 0.0f,
		(float)sin(r), 0, (float)cos(r), 0.0f, 0.0f,
		0.0f,    0.0f,   0.0f, 1.0f, 0.0f,
		0.0f,    0.0f,   0.0f, 0.0f, 1.0f
	};

	//重新加载另一变换矩阵Matrix3
	imageAttributes.SetColorMatrix(
		&colorMatrix3, 
		ColorMatrixFlagsDefault,
		ColorAdjustTypeBitmap);
	graphics.TranslateTransform(width+10,0);
	graphics.DrawImage(
		&image, 
		Rect(0, 0, width, height),
		0, 0,
		width, height,UnitPixel,
		&imageAttributes);
}

void ColorShear_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//加载图片
	Bitmap  image(L"Colorinput.bmp");
	ImageAttributes  imageAttributes;
	int   width = image.GetWidth();
	int   height = image.GetHeight();

	//定义色彩变换矩阵
	ColorMatrix colorMatrix=
	{
		1.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
		0.5f, 0.0f, 1.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};

	//启用色彩变换矩阵
	imageAttributes.SetColorMatrix(
		&colorMatrix, 
		ColorMatrixFlagsDefault,
		ColorAdjustTypeBitmap);

	//绘制源图
	graphics.DrawImage(&image, 0, 0);
	//使用色彩变换矩阵输出图片
	graphics.TranslateTransform(width+10,0);
	graphics.DrawImage(&image, Rect(0, 0, width, height),
		0, 0,width, height,UnitPixel,&imageAttributes);

}

void ColorRemap_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//加载蓝色背景的图片
	Bitmap            image(L"Nemo_Blue.bmp");
	ImageAttributes  imageAttributes;

	int   width = image.GetWidth();
	int   height = image.GetHeight();
	//将蓝色替换成白色,以达到抠除的效果
	ColorMap   colorMap;
	colorMap.oldColor = Color(255, 0, 0, 255); 
	colorMap.newColor = Color(255, 255,255,255);
	//设置色彩转换表
	ColorMap remapTable[1];  remapTable[0]=colorMap;

	//设置图片的色彩信息
	imageAttributes.SetRemapTable(1, remapTable, ColorAdjustTypeBitmap);
	//绘制原始图像
	graphics.DrawImage(&image, 0, 0, width, height);
	//绘制已经抠除背景色的新图像
	graphics.DrawImage(&image, 
		Rect(width+10, 0, width, height),  //目标区域
		0, 0,        // 源图左上角坐标
		width,       // 源图宽
		height,      // 源图宽
		UnitPixel,
		//图片的色彩信息
		&imageAttributes);
}

void SetRGBOutputChannel_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//加载图片
	Bitmap  image(L"jieba.bmp");
	//绘制源图
	graphics.DrawImage(&image, 0, 0);

	int  width = image.GetWidth();
	int height = image.GetHeight();
	ImageAttributes  imageAttributes;

	//设置红色通道
	ColorMatrix colorMatrix=
	{
		1.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};

	//启用色彩变换矩阵
	imageAttributes.SetColorMatrix(
		&colorMatrix, 
		ColorMatrixFlagsDefault,
		ColorAdjustTypeBitmap);
	//使用色彩变换矩阵输出图片
	graphics.TranslateTransform(width+10,0);
	graphics.DrawImage(&image, Rect(0, 0, width, height),
		0, 0,width, height,UnitPixel,&imageAttributes);

	//清除已经采取的色彩变换
	imageAttributes.ClearColorMatrix(ColorAdjustTypeBitmap);
	//设置绿色通道
	ColorMatrix colorMatrix2=
	{
		0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};

	//启用色彩变换矩阵
	imageAttributes.SetColorMatrix(
		&colorMatrix2, 
		ColorMatrixFlagsDefault,
		ColorAdjustTypeBitmap);
	//使用色彩变换矩阵输出图片
	graphics.ResetTransform();
	graphics.TranslateTransform(0,height+10);
	graphics.DrawImage(&image, Rect(0, 0, width, height),
		0, 0,width, height,UnitPixel,&imageAttributes);

	//清除已经采取的色彩变换
	imageAttributes.ClearColorMatrix(ColorAdjustTypeBitmap);

	//设置蓝色通道
	ColorMatrix colorMatrix3=
	{
		0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};

	//启用色彩变换矩阵
	imageAttributes.SetColorMatrix(
		&colorMatrix3, 
		ColorMatrixFlagsDefault,
		ColorAdjustTypeBitmap);

	//使用色彩变换矩阵输出图片
	graphics.TranslateTransform(width+10,0);
	graphics.DrawImage(&image, Rect(0, 0, width, height),
		0, 0,width, height,UnitPixel,&imageAttributes);
}

void Metafile_Click()
{
	//	Note:  To record a metafile, you must construct a Graphics
	//object based on a Metafile object. The recording of the metafile
	//ends when that Graphics object is deleted or goes out of scope.

	//新建一个图元文件
	HDC hdc =GetGraphics().GetHDC();
	Metafile metaFile1(L"图元文件示例.emf", hdc);
	{
		//使用Metafile对象的地址做为绘图平面
		Graphics graphics(&metaFile1);

		//定义一个由红到蓝的渐变色画刷
		LinearGradientBrush RtoBBrush(
			Point(0, 10),
			Point(200, 10),
			Color::Red,   
			Color::Blue);

		//定义一个由蓝到黄的渐变色画刷
		LinearGradientBrush BtoYBrush(
			Point(0, 10),
			Point(200, 10),
			Color::Blue,   
			Color::Yellow);
		Pen bluePen(Color::Blue);

		// 以下的操作是往屏幕上绘制一八卦图形
		Rect ellipseRect(0, 0, 200, 200);
		Rect left(0, 50, 100, 100);
		graphics.DrawArc(&bluePen,left,180.0f,180.0f);
		Rect right(100, 50, 100, 100);
		graphics.FillPie(&RtoBBrush, ellipseRect,0.0f,180.0f);
		graphics.FillPie(&BtoYBrush, ellipseRect,180.0f,180.0f);
		graphics.FillPie(&RtoBBrush, left,180.0f,180.0f);
		graphics.FillPie(&BtoYBrush, right,0.0f,180.0f);

		//文本输出 
		SolidBrush solidBrush(Color::Black);
		FontFamily fontFamily(L"隶书");
		Font font(&fontFamily, 27,
			FontStyleRegular, UnitPixel);
		MyDrawString(graphics, "图元文件示例", font, solidBrush,
			PointF(20.0f, 80.0f));
		//到此，GDI+进行的只是往硬盘中存放图片信息的操作
	}

	//将上面的绘图信息进行回放
	Graphics playbackGraphics(hdc);
	playbackGraphics.Clear(Color::White);
	//打开并显示图元文件
	Metafile metaFile2(L"图元文件示例.emf");
	playbackGraphics.DrawImage(&metaFile2, Point(0,0));
	//释放HDC
	playbackGraphics.ReleaseHDC(hdc);
}

void CroppingAndScaling_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//加载图片
	Bitmap image(L"nemo.bmp");
	int width = image.GetWidth();
	int height = image.GetHeight();

	// 目标显示区域在源图大小的基础上放大1.4倍
	RectF destinationRect(
		width+10, 0.0f, 1.4f* width, 1.4f* height);
	//绘制源图
	graphics.DrawImage(&image, 0, 0);

	//在目标区域内输出位图
	graphics.DrawImage(
		&image,
		destinationRect,
		0.f, 0.f,    // 原图左上角
		0.65f*width,      // 仅显示原图宽度的65%部分
		0.65f*height,      // 仅显示原图高度的65%部分
		UnitPixel);
}

void UsingInterpolationMode_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//装入图片
	Bitmap image(L"eagle.bmp");
	int width = image.GetWidth();
	int height = image.GetHeight();

	//绘制源图
	graphics.DrawImage(
		&image,
		Rect(0, 0, width, height),  //目标区域 
		0, 0,        //源图左上角坐标
		width,       //源图宽度
		height,      //源图高
		UnitPixel);

	//绘图平面右移
	graphics.TranslateTransform( width+10,0);
	//最临近插值法(低质量)
	graphics.SetInterpolationMode(InterpolationModeNearestNeighbor);
	graphics.DrawImage(
		&image,
		RectF(0.0f, 0.0f, 0.6f*width, 0.6f*height),  //目标区域
		0, 0,        //源图左上角坐标
		width,       //源图宽度
		height,      //源图高
		UnitPixel);

	//绘图平面右移
	graphics.TranslateTransform( 0.6f*width+10,0);
	// 高质量双线性插值法
	graphics.SetInterpolationMode(InterpolationModeHighQualityBilinear);
	graphics.DrawImage(
		&image,
		RectF(0, 0, 0.6f * width, 0.6f * height),  //目标区域
		0, 0,        //源图左上角坐标
		width,       //源图宽度
		height,      //源图高
		UnitPixel);

	//绘图平面右移
	graphics.TranslateTransform(width*0.6f+10, 0.f);
	// 高质量双三次插值法
	graphics.SetInterpolationMode(InterpolationModeHighQualityBicubic);
	graphics.DrawImage(
		&image,
		RectF(0, 0, 0.6f * width, 0.6f * height),  //目标区域
		0, 0,        //源图左上角坐标
		width,       //源图宽度
		height,      //源图高
		UnitPixel);
}

void RotateFlip_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	//加载图片	
	Bitmap photo(L"nemo2.bmp");

	//得到图片尺寸
	int iWidth = photo.GetWidth();
	int iHeight = photo.GetHeight();
	//绘制原始图片
	graphics.DrawImage(&photo, 10+photo.GetWidth()+2,
		10, photo.GetWidth(), photo.GetHeight());
	//水平翻转图片 
	photo.RotateFlip(RotateNoneFlipX);  
	//旋转后的图片
	graphics.DrawImage(&photo, 10, 10, photo.GetWidth(), photo.GetHeight()); 	
}

void ImageSkewing_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//定义图形的目标显示区域
	Point destination[]=
	{
		Point(200, 20),   //原始图像左上角映射后的坐标
		Point(110, 100), //原始图像右上角映射后的坐标
		Point(250, 30)  //原始图像左下角映射后的坐标
	};
	Bitmap image(L"Stripes.bmp");
	// 绘制原始图像
	graphics.DrawImage(&image, 0, 0);

	// 绘制基于平行四边形映射后的图像
	graphics.TranslateTransform(image.GetWidth(),0);
	graphics.DrawImage(&image, destination, 3);	

}


void Cubeimage_Click()
{
	int WIDTH=200;
	int LEFT=200;
	int TOP=200;

	Graphics &graphics=GetGraphics();
	//使用蓝色做背景色清屏
	graphics.Clear(Color::Blue);

	//设置插值模式：高质量双三次插值法
	graphics.SetInterpolationMode(InterpolationModeHighQualityBicubic);

	//分别装入张贴在立方体三面的图片
	Bitmap face(L"rose.bmp");
	Bitmap top(L"flower.bmp");
	Bitmap right(L"yujinxiang.bmp");

	//重新定义用于张贴在正面的图片坐标
	Point destinationFace[] =
	{
		Point(LEFT,TOP), 
		Point(LEFT+WIDTH, TOP),
		Point(LEFT, TOP+WIDTH)
	};  
	//张贴正面图像
	graphics.DrawImage(&face,destinationFace,3); 

	//重新定义用于张贴在顶部的图片坐标	
	PointF destinationTop[]=
	{
		PointF(LEFT+WIDTH/2, TOP-WIDTH/2),
		PointF(LEFT+WIDTH/2+WIDTH, TOP-WIDTH/2), 
		PointF(LEFT, TOP)
	};  
	//张贴顶部面图像		
	graphics.DrawImage(&top, destinationTop, 3); 

	//重新定义用于张贴在右侧的图片坐标				
	Point destinationRight[]=
	{
		Point(LEFT+WIDTH, TOP),
		Point(LEFT+WIDTH/2+WIDTH, TOP-WIDTH/2), 
		Point(LEFT+WIDTH,TOP+WIDTH)
	};
	//张贴右侧面图像						
	graphics.DrawImage(&right, destinationRight, 3);
}

void ThumbnailImage_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//设置插值模式：高质量双三次插值法
	graphics.SetInterpolationMode(InterpolationModeHighQualityBicubic);

	//加载欲查看缩略图的图片
	Bitmap image(L"flower.bmp");
	//获取当前窗口大小
	Rect client(0,0,
		MyClient.Width,MyClient.Height);

	float width=image.GetWidth();
	float height=image.GetHeight();

	//获取指定大小的缩略图
	Image *pThumbnail = image.GetThumbnailImage(40,40,  NULL, NULL);

	//将缩略图作为画刷
	TextureBrush picBrush(pThumbnail);
	//填充窗口
	graphics.FillEllipse(&picBrush,client);
}

void Clone_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Bitmap image(L"head.bmp");
	int Height=image.GetHeight();
	int Width=image.GetWidth();

	//定义将图片切分成四个部分的区域
	RectF block[4]=
	{
		RectF(0,0,Width/2,Height/2),
		RectF(Width/2,0,Width/2,Height/2),
		RectF(0,Height/2,Width/2,Height/2),
		RectF(Width/2,Height/2,Width/2,Height/2)
	};

	//分别克隆图片的四个部分	
	Bitmap *s[4];
	s[0]=image.Clone(block[0],PixelFormatDontCare);
	s[1]=image.Clone(block[1],PixelFormatDontCare);
	s[2]=image.Clone(block[2],PixelFormatDontCare);
	s[3]=image.Clone(block[3],PixelFormatDontCare);
	//绘制图片的四个部分，各部分绘制时间间隔为1秒
	graphics.DrawImage(s[0],0,0);

	//延时，以达到分块显示的效果
	::Sleep(1000);
	graphics.DrawImage(s[1],Width/2,0);
	::Sleep(1000);
	graphics.DrawImage(s[3],Width/2,Height/2);
	::Sleep(1000);
	graphics.DrawImage(s[2],0,Height/2);
	delete s[0];
	delete s[1];
	delete s[2];
	delete s[3];
}

void Picturescale_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//装入图片
	Bitmap image(L"photo.bmp");

	//定义图片的显示区域
	Rect rect(0,0,image.GetWidth(),image.GetHeight());
	graphics.DrawImage(&image,rect);

	//局部缩小的区域大小为80*80
	graphics.TranslateTransform(image.GetWidth()+10,0);
	Rect smallrect(0,0,80,80);
	//局部缩小
	graphics.DrawImage(&image,smallrect,80,10,106,112,UnitPixel);

	graphics.TranslateTransform(0,100);
	//局部放大的区域大小为80*80
	Rect largerect(0,0,80,80);
	//绘制放大后的局部图像
	graphics.DrawImage(&image,largerect,56,101,35,40,UnitPixel);
}

void ImageAttributesSetNoOp_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Bitmap image(L"ColorTable.bmp");
	int width=image.GetWidth();
	//绘制标准图片  
	graphics.DrawImage(&image,0,0);

	graphics.TranslateTransform(image.GetWidth()+10,0);
	ImageAttributes imAtt;

	//构造一个红色转换到绿色的变换矩阵   


	ColorMatrix brushMatrix=
	{
		0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
		0.0f, 0.0f, 0.0f, 0.0f, 1.0f
	};
	//设置色彩校正
	imAtt.SetColorMatrix(
		&brushMatrix, 
		ColorMatrixFlagsDefault, 
		ColorAdjustTypeBitmap);

	//使用色彩校正绘制图片
	graphics.DrawImage(
		&image,
		Rect(0, 0, image.GetWidth(), image.GetHeight()),  //目标位置
		0, 0, image.GetWidth(), image.GetHeight(),        //源位置
		UnitPixel,
		&imAtt);

	//临时关闭色彩校正
	imAtt.SetNoOp(ColorAdjustTypeBitmap);

	//不使用色彩校正绘制图片红色->红色
	graphics.TranslateTransform(width+10,0);
	graphics.DrawImage(
		&image,
		Rect(0, 0, image.GetWidth(), image.GetHeight()),  //目标位置
		0, 0, image.GetWidth(), image.GetHeight(),          //源位置
		UnitPixel,
		&imAtt);

	//撤消对色彩校正的关闭
	imAtt.ClearNoOp(ColorAdjustTypeBitmap);

	//使用色彩校正绘制图片：红色->绿色
	graphics.TranslateTransform(width+10,0);
	graphics.DrawImage(
		&image,
		Rect(0, 0, image.GetWidth(), image.GetHeight()),  //目标位置
		0, 0, image.GetWidth(), image.GetHeight(),          //源位置
		UnitPixel,
		&imAtt);
}


void CreateMetaFile()
{
	Graphics &metagraph=GetGraphics();

	//新建一个图元文件
	HDC hdc =metagraph.GetHDC();
	Metafile metaFile1(CWideCharString("ddd.emf"), hdc);
	//使用Metafile对象的地址做为绘图平面
	Graphics *graphics=Graphics::FromImage(&metaFile1);
	graphics->ScaleTransform(0.8f,0.8f);

	//在沿水平方向输出三个椭圆并填充
	graphics->SetSmoothingMode(SmoothingModeHighQuality);
	//红色椭圆
	graphics->DrawEllipse(&Pen(Color.Red,10), Rect(0, 0, 75, 95));
	graphics->FillEllipse(&SolidBrush(Color::Red), Rect(0, 0, 75, 95));

	//绿色椭圆
	graphics->DrawEllipse(&Pen(Color::Green,10), Rect(40, 0, 75, 95));
	graphics->FillEllipse(&SolidBrush(Color::Green), Rect(40, 0, 75, 95));

	//蓝色椭圆
	graphics->DrawEllipse(&Pen(Color.Blue,10), Rect(80, 0, 75, 95));
	graphics->FillEllipse(&SolidBrush(Color::Blue), Rect(80, 0, 75, 95));

	// 追加三种色彩的文本
	FontFamily fontFamily(CWideCharString("Arial"));
	Font font(&fontFamily, 24, FontStyleRegular, UnitPixel);
	graphics->SetTextRenderingHint(TextRenderingHintAntiAlias);

	//红色文字
	MyDrawString(*graphics, "GDI+",font, SolidBrush(Color::Red), PointF(-80.0f, 0.0f));
	//绿色文字
	MyDrawString(*graphics, "GDI+",font, SolidBrush(Color::Green), PointF(-80.0f, font.GetHeight(graphics)));
	//蓝色文字
	MyDrawString(*graphics, "GDI+",font, SolidBrush(Color::Blue), PointF(-80.0f, font.GetHeight(graphics)*2));
	//释放所有资源。
	//graphics->Dispose();
	//metaFile1.Dispose();
	metagraph.ReleaseHDC(hdc);
	//metagraph.Dispose();
	delete graphics;
}

void SetColorMatrices_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//加载图元文件	
	Metafile image(L"ddd.emf");
	Unit  unit=UnitPixel;
	//获取图片区间
	RectF rect; image.GetBounds(&rect, &unit);

	//不使用任何色彩校正输出图片
	graphics.DrawImage(&image, 0.0f, 0.0f, rect.Width, rect.Height);
	ImageAttributes  imAtt;

	//定义一个使红色分量递增1.5的矩阵
	ColorMatrix defaultColorMatrix=
	{ 
		1.5f,  0.0f,  0.0f,  0.0f,  0.0f,
		0.0f,  1.0f,  0.0f,  0.0f,  0.0f,
		0.0f,  0.0f,  1.0f,  0.0f,  0.0f,
		0.0f,  0.0f,  0.0f,  1.0f,  0.0f,
		0.0f,  0.0f,  0.0f,  0.0f,  1.0f
	};

	//定义一个使绿色分量递增1.5的矩阵
	ColorMatrix defaultGrayMatrix=
	{  
		1.0f,  0.0f,  0.0f,  0.0f,  0.0f,
		0.0f,  1.5f,  0.0f,  0.0f,  0.0f,
		0.0f,  0.0f,  1.0f,  0.0f,  0.0f,
		0.0f,  0.0f,  0.0f,  1.0f,  0.0f,
		0.0f,  0.0f,  0.0f,  0.0f,  1.0f
	};

	//画笔的彩色色彩信息较校正矩阵：蓝色分量递增1.5的矩阵
	ColorMatrix penColorMatrix= 
	{  
		1.0f,  0.0f,  0.0f,  0.0f,  0.0f,
		0.0f,  1.0f,  0.0f,  0.0f,  0.0f,
		0.0f,  0.0f,  1.5f,  0.0f,  0.0f,
		0.0f,  0.0f,  0.0f,  1.0f,  0.0f,
		0.0f,  0.0f,  0.0f,  0.0f,  1.0f
	};

	//画笔的灰度色矩阵：所有分量递增1.5的矩阵
	ColorMatrix penGrayMatrix=
	{
		1.5f,  0.0f,  0.0f,  0.0f,  0.0f,
		0.0f,  1.5f,  0.0f,  0.0f,  0.0f,
		0.0f,  0.0f,  1.5f,  0.0f,  0.0f,
		0.0f,  0.0f,  0.0f,  1.0f,  0.0f,
		0.0f,  0.0f,  0.0f,  0.0f,  1.0f
	};

	// 设置默认的彩色及灰度校正矩阵.
	//ColorAdjustTypeDefault:修改所有的色彩信息
	imAtt.SetColorMatrices(
		&defaultColorMatrix,
		&defaultGrayMatrix, 
		ColorMatrixFlagsAltGray,
		ColorAdjustTypeDefault);
	//使用校正矩阵绘制图元文件：校正所有的色彩
	graphics.TranslateTransform(image.GetWidth()+10,0);
	graphics.DrawImage(
		&image, 
		Rect(0, 0, (int)rect.Width,(int)rect.Height),  
		rect.X, rect.Y,               
		rect.Width,                   
		rect.Height,                   
		UnitPixel,
		&imAtt);

	//设置画笔的彩色及灰度色彩校正矩阵
	//ColorAdjustTypePen：修正画笔色彩
	imAtt.SetColorMatrices(
		&penColorMatrix,
		&penGrayMatrix, 
		ColorMatrixFlagsAltGray,
		ColorAdjustTypePen); 
	//在第二行绘制
	graphics.ResetTransform();
	graphics.TranslateTransform(0,image.GetHeight());
	//使用修正后的画笔绘制图片 
	graphics.DrawImage(
		&image, 
		Rect(0, 0, (int)rect.Width,(int)rect.Height),  
		rect.X, rect.Y,               
		rect.Width,                   
		rect.Height,                   
		UnitPixel,
		&imAtt);

	graphics.TranslateTransform(image.GetWidth()+10,0);
	//清除在画笔上的所有变换
	imAtt.ClearColorMatrix(ColorAdjustTypePen);
	graphics.DrawImage(
		&image, 
		Rect(0, 0, (int)rect.Width,(int)rect.Height),  
		rect.X, rect.Y,               
		rect.Width,                   
		rect.Height,                   
		UnitPixel,
		&imAtt); 
}

void SetOutputChannelColorProfile_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Bitmap image(L"car.bmp");
	ImageAttributes imAtt;
	int width = image.GetWidth();
	int height = image.GetHeight();
	Rect rect(0, 0, width, height);
	//绘制原始图片
	graphics.DrawImage(&image, rect);

	graphics.TranslateTransform(width,0);
	//设置色彩配置文件
	imAtt.SetOutputChannelColorProfile(
		CWideCharString("kodak_dc.ICM"), ColorAdjustTypeBitmap);

	//使用色彩配置文件输出图片
	graphics.DrawImage(
		&image,
		rect,  
		0, 0, width, height,          
		UnitPixel,
		&imAtt);
}

void Gammaadjust_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//装入原始图片
	Bitmap image(L"warrior.bmp");
	int width = image.GetWidth();
	int height = image.GetHeight();

	// 设置字体信息
	Font myFont(L"宋体", 12);
	//设置提示信息的显示区域
	PointF origin(width+10, height+20);
	SolidBrush blackBrush(Color::Black);

	ImageAttributes imAtt;   
	CString msg;
	//从0-3依次调整输出图片时所使用的Gamma值
	for(float i=0.0f;i<3.0f;i+=0.1f)
	{	
		//绘制原始图片
		graphics.DrawImage(&image,0,0);

		//设置Gamma值
		imAtt.SetGamma(i,ColorAdjustTypeBitmap);
		//使用修改后Gamma值进行图片输出
		graphics.DrawImage(
			&image,
			Rect(width+10, 0, width, height),  //目标区域
			0, 0, width, height,           //源区域
			UnitPixel,
			&imAtt);
		msg.Format("正在修改Gamma值，Gamma=%.2f",i);
		//显示当前的Gamma值信息
		MyDrawString(graphics, msg,myFont,blackBrush,origin);
		//延时一秒以便观看效果
		::Sleep(100);
		graphics.Clear(Color::White);
		imAtt.ClearGamma();
	}
}

void SetOutputChannel_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//装入图片
	Bitmap image(L"jieba.bmp");
	//图片的高度
	int width = image.GetWidth();
	int height = image.GetHeight();

	//绘制原始图片
	graphics.DrawImage(&image, RectF(0, 0, width, height));
	ImageAttributes imAtt;
	//设置色彩输出通道cyan
	imAtt.SetOutputChannel(ColorChannelFlagsC,
		ColorAdjustTypeBitmap);
	//右移，绘制图片
	graphics.TranslateTransform(width, 0);
	graphics.DrawImage(
		&image,
		Rect(0, 0, width, height),  
		0, 0, width, height,           
		UnitPixel,
		&imAtt);

	//设置色彩输出通道:magenta 
	imAtt.SetOutputChannel(ColorChannelFlagsM, 
		ColorAdjustTypeBitmap);
	//右移，绘制图片
	graphics.TranslateTransform(width, 0);
	graphics.DrawImage(
		&image,
		Rect(0, 0, width, height),
		0, 0, width, height,           
		UnitPixel,
		&imAtt);

	//设置色彩输出通道:yellow
	imAtt.SetOutputChannel(ColorChannelFlagsY, 
		ColorAdjustTypeBitmap);
	//右移，绘制图片
	graphics.TranslateTransform(width, 0);
	graphics.DrawImage(
		&image,
		Rect(0, 0, width, height),
		0, 0, width, height,           
		UnitPixel,
		&imAtt);

	//设置色彩输出通道:black
	imAtt.SetOutputChannel(ColorChannelFlagsK, 
		ColorAdjustTypeBitmap);
	//右移，绘制图片
	graphics.TranslateTransform(width, 0);
	graphics.DrawImage(
		&image,
		Rect(0, 0, width, height),
		0, 0, width, height,            
		UnitPixel,
		&imAtt); 

}

void Colorkey_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//装入前后背景图片
	Bitmap forground(L"grid.bmp");
	Bitmap background(L"snike.bmp");

	int width=background.GetWidth();
	int height=background.GetHeight();
	Rect rect(0,0,width,height);

	//将红色设置成关键色
	ImageAttributes imAtt;
	imAtt.SetColorKey(
		Color::Red,
		Color::Red,
		ColorAdjustTypeBitmap);

	//绘制背景
	graphics.DrawImage(&background,0,0); 
	//绘制前景
	graphics.DrawImage(
		&forground, 
		rect,
		0, 0, forground.GetWidth(), forground.GetHeight(),
		UnitPixel,
		&imAtt);

	graphics.TranslateTransform(width+20,0);
	graphics.DrawImage(&background,0,0); 
	//清除已经应用的关键色信息
	imAtt.ClearColorKey(ColorAdjustTypeBitmap);   
	///将蓝色设置成关键色
	imAtt.SetColorKey(
		Color::Blue,
		Color::Blue,
		ColorAdjustTypeBitmap);
	graphics.DrawImage(&forground, 
		rect,
		0, 0, forground.GetWidth(), forground.GetHeight(),        
		UnitPixel,
		&imAtt);
	graphics.TranslateTransform(width+20,0);

	//绘制源图
	graphics.DrawImage(&background,0,0); 
}

void Setthreshold_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Bitmap image(L"box-2.bmp");
	int Width=image.GetWidth();
	int Height=image.GetHeight();
	//绘制原始图片
	graphics.DrawImage(&image, 10, 10, Width, Height);

	//将阈值从0到1依次运用
	ImageAttributes imAtt;
	for(float i=0.0f;i<1.0f;i+=0.1f)
	{
		//设置输出图片时使用的阈值
		imAtt.SetThreshold(i, ColorAdjustTypeBitmap);
		//绘制已经使用了阈值的图片
		graphics.DrawImage(&image,
			Rect(10+Width, 10, Width, Height),  
			0, 0, Width, Height, 
			UnitPixel,
			&imAtt);
		//延时
		::Sleep(1000);
	}
}

void AdjustedPalette_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	graphics.ScaleTransform(0.7f,0.7f);

	//加载图片
	Bitmap image(L"lord-256.bmp");
	//复制图片
	Bitmap image2(L"lord-256.bmp");
	//获取图片使用的调色板信息
	int size=image.GetPaletteSize();
	ColorPalette *palette= (ColorPalette *)new BYTE[size];
	image.GetPalette(palette, size);

	//获取调色板所包含的色彩总数
	int count=palette->Count;
	if(count<1)
	{
		AfxMessageBox("图片无调色板信息可用");
		return;
	}	

	//更改调色板中的每一种色彩信息		
	for(int i=0;i<count;i++)
	{
		Color u(palette->Entries[i]);
		int r=u.GetR()/2;
		int g=u.GetG()/2;
		int b=u.GetB()/2;

		if(r<1)
			r=0;
		if(g<1)
			g=0;
		if(b<1)
			b=0;
		palette->Entries[i]=u.MakeARGB(255, r,g,b);
	}

	//设置图像的新调色板
	image.SetPalette(palette);
	//绘制原图
	graphics.DrawImage(&image2,0,0);
	//绘制修改后的图片
	graphics.DrawImage(&image,image.GetWidth()+10,0);
	delete palette;
}

void SetWrapMode_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//加载图片
	Bitmap image(L"yueru.bmp");
	ImageAttributes imAtt;

	//设置图片排列方式为WrapModeClamp：图片不进行平铺
	imAtt.SetWrapMode(WrapModeClamp,Color::Red);

	//缩小显示源图
	graphics.DrawImage(&image,
		Rect(0, 0, image.GetWidth(), image.GetHeight()),  //目标区域
		0, 0, 2*image.GetWidth(), 2*image.GetHeight(),      //源图片区域
		UnitPixel,
		&imAtt);

	graphics.TranslateTransform(image.GetWidth()+10,0);
	//设置图片排列方式为WrapModeTileFlipXY：图片在水平和垂直方向上同时翻转
	imAtt.SetWrapMode(WrapModeTileFlipXY);
	graphics.DrawImage(&image,
		Rect(0, 0, image.GetWidth(), image.GetHeight()),  //目标区域
		0, 0, 2*image.GetWidth(), 2*image.GetHeight(),       //源图片区域
		UnitPixel,
		&imAtt);

	graphics.TranslateTransform(image.GetWidth()+10,0);
	//设置图片排列方式为WrapModeTileFlipX：图片在水平上翻转
	imAtt.SetWrapMode(WrapModeTileFlipX);
	graphics.DrawImage(&image,
		Rect(0, 0, image.GetWidth(), image.GetHeight()),  //目标区域
		0, 0, 2*image.GetWidth(), 2*image.GetHeight(),       //源图片区域
		UnitPixel,
		&imAtt);

	graphics.TranslateTransform(image.GetWidth()+10,0);
	//设置图片排列方式为WrapModeTileFlipY：图片在垂直上翻转
	imAtt.SetWrapMode(WrapModeTileFlipY);
	graphics.DrawImage(&image,
		Rect(0, 0, image.GetWidth(), image.GetHeight()),  //目标区域
		0, 0, 2*image.GetWidth(), 2*image.GetHeight(),       //源图片区域
		UnitPixel,
		&imAtt);
}

void ListAllImageEncoders_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brush(Color::Blue);
	FontFamily  fontFamily(L"华文楷体");
	Font        myFont(&fontFamily, 20, FontStyleRegular, UnitPixel);

	//获取编码器信息
	UINT num, size;
	GetImageEncodersSize(&num, &size);
	ImageCodecInfo *pImageCodecInfo = (ImageCodecInfo*)new BYTE[size];
	GetImageEncoders(num, size, pImageCodecInfo);

	//输出编码信息
	CString msg;
	for(UINT j = 0; j <num; ++j)
	{ 
		CString s;
		s.Format("编码器名称:%s\t文件格式扩展名:%s\t\n", 
			CString(pImageCodecInfo[j].CodecName),
			CString(pImageCodecInfo[j].FilenameExtension));
		msg+=s;
	}
	MyDrawString(graphics, msg,myFont,brush, PointF(0,0));
	delete pImageCodecInfo;
}

//帮助函数
CString MyStringFromGUID2(const GUID &rguid)
{
	WCHAR strGuid[39];
	StringFromGUID2(rguid, strGuid, 39);
	return CString(strGuid);
}

void ListImageEncoder_Detail_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//获取编码器信息
	UINT num, size;
	GetImageEncodersSize(&num, &size);
	ImageCodecInfo *pImageCodecInfo = (ImageCodecInfo*) new BYTE[size];
	GetImageEncoders(num, size, pImageCodecInfo);
	//查找指定格式文件的编码器信息
	CString msg;
	//查询所有的编码器信息
	for(UINT j = 0; j <num; j++)
	{
		CString s;
		s.Format("开始描述第%d种图形编码信息\n\n",j); msg+=s;
		s.Format("编码标识: %s\n",MyStringFromGUID2(pImageCodecInfo[j].Clsid));  msg+=s;
		s.Format("文件格式标识: %s\n", MyStringFromGUID2(pImageCodecInfo[j].FormatID)); msg+=s;
		s.Format("编码器名称: %s\n", CString(pImageCodecInfo[j].CodecName)); msg+=s;
		s.Format("编码器依存的动态连接库名: %s\n",CString(pImageCodecInfo[j].DllName)); msg+=s;
		s.Format("编码描述: %s\n", CString(pImageCodecInfo[j].FormatDescription)); msg+=s;
		s.Format("编码器对应的文件扩展名: %s\n",CString(pImageCodecInfo[j].FilenameExtension)); msg+=s;
		s.Format("编码器的MIME类型描述: %s\n",CString(pImageCodecInfo[j].MimeType)); msg+=s;
		s.Format("ImageCodecFlags枚举的标记集: %d\n",pImageCodecInfo[j].Flags); msg+=s;
		s.Format("编码器版本: %d\n",pImageCodecInfo[j].Version); msg+=s;

		int sigCount = pImageCodecInfo[j].SigCount;
		s.Format("与编码器对应的编码器签名的数组大小:%d\n", sigCount); msg+=s;
		s.Format("第%d种图形编码信息描述完毕\n\n",j); msg+=s;
		AfxMessageBox(msg);
		msg.Empty();
	}
	delete pImageCodecInfo;

	//将编码器的详细信息写入文件
	//StreamWriter sw= StreamWriter(@"listinfo.txt",false,System.Text.Encoding.Unicode);
	//sw.Write(msg);
	//sw.Close();
	//AfxMessageBox("操作结束，请打开当前目录下的listinfo.txt查看编码器消息");
}

void ListImageDecoder_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brush(Color::Blue);
	FontFamily  fontFamily(L"华文楷体");
	Font        myFont(&fontFamily, 20, FontStyleRegular, UnitPixel);

	//获取编码器信息
	UINT num, size;
	GetImageDecodersSize(&num, &size);
	ImageCodecInfo *pImageCodecInfo = (ImageCodecInfo*) new BYTE[size];
	GetImageDecoders(num, size, pImageCodecInfo);

	//输出每一个解码器的详细信息
	CString msg;
	for(UINT j = 0; j <num; j++)
	{
		CString s;
		s.Format("解码器名称:%s\t文件格式扩展名:%s\t\n", 
			CString(pImageCodecInfo[j].CodecName),CString(pImageCodecInfo[j].FilenameExtension));
		msg+=s;
	}
	delete pImageCodecInfo;
	//显示信息
	MyDrawString(graphics, msg,myFont,brush, PointF(0,0));
}

GUID GetEncoderClsid(CString format)
{
	GUID picGUID;
	//获取编码器信息
	UINT num=0, size=0;
	GetImageEncodersSize(&num, &size);
	ImageCodecInfo *pImageCodecInfo = (ImageCodecInfo*) new BYTE[size];
	GetImageEncoders(num, size, pImageCodecInfo);
	//查找指定格式文件的编码器信息
	CWideCharString formatW(format);
	for(UINT i = 0; i <num; i++)
	{	//MimeType：编码方式的具体描述
		if(formatW == CWideCharString(pImageCodecInfo[i].MimeType))
		{
			picGUID= pImageCodecInfo[i].Clsid;
			break;
		}
	}
	delete pImageCodecInfo;
	return picGUID;
}

void GetEncoderParameter_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brush(Color::Blue);
	FontFamily  fontFamily(L"宋体");
	Font        myFont(&fontFamily, 16, FontStyleRegular, UnitPixel);

	CString msg;
	// 为了查询将位图保存为JPEG格式的图片，新建一个位图
	Bitmap bitmap(1,1);

	//获取JPEG格式的图像编码器的标识
	GUID encoderClsid;
	encoderClsid=GetEncoderClsid(L"image/jpeg");

	// 获取转换成JPG所需要的具体参数信息
	UINT size=bitmap.GetEncoderParameterListSize(&encoderClsid);
	EncoderParameters *pEncoderParameters= (EncoderParameters *)new BYTE[size];
	bitmap.GetEncoderParameterList(&encoderClsid, size, pEncoderParameters);
	// 查看pEncoderParameters对象中多少个EncoderParameter类
	int count=pEncoderParameters->Count;
	msg.Format("在编码参数数组中有%d个EncoderParameter类\n每个类的详细信息为：\n", count);
											
	EncoderParameter *pEncoderParameter=pEncoderParameters->Parameter;
	/*分别查看EncoderParameters对象中的
	每一个EncoderParameter对象的成员变量
	GUID、NumberOfValues、Type*/
	for(int i=0;i<count;i++)
	{
		CString s;
		//将GUID值转换成字串 
		s.Format("所需设置的第%d个参数种类(GUID):%s\n", i, MyStringFromGUID2(pEncoderParameter[i].Guid));
		msg+=s;
		//查看在每一个参数种类下，可以设置的参数信息
		s.Format("\t在该参数参数种类下，你可以进行的设置的参数分别如下\n");
		msg+=s;
		s.Format("\t\t变量总数=%d\n", pEncoderParameter[i].NumberOfValues);
		msg+=s;
		s.Format("\t\t参数类型=%d\n", pEncoderParameter[i].Type);
		msg+=s;
	}
	//输出编码参数列表信息
	MyDrawString(graphics, msg,myFont,brush, PointF(0,0));
	delete pEncoderParameters;
}

HRESULT EncoderParameterCategoryFromGUID(GUID guid, WCHAR* category, UINT maxChars);
CString _EncoderParameterCategoryFromGUID(GUID guid)
{
   CONST MAX_CATEGORY_LENGTH = 50;
   WCHAR strParameterCategory[MAX_CATEGORY_LENGTH] = L"";
   if (Ok==EncoderParameterCategoryFromGUID(guid, strParameterCategory, MAX_CATEGORY_LENGTH))
	   return CString(strParameterCategory);
   return _T("失败");
}

CString ShowAllEncoderParameters(CString format)
{
	CString outmsg;		
	
	//以位图为例，查看pImageCodecInfo的详细信息	
	Bitmap bitmap(L"head.bmp");

	GUID encoderClsid=GetEncoderClsid(format);
	UINT size=bitmap.GetEncoderParameterListSize(&encoderClsid);
	if (0==size)
	{
		return _T("错误");
	}
	EncoderParameters *encodersarameters= (EncoderParameters *)new BYTE[size];
	bitmap.GetEncoderParameterList(&encoderClsid, size, encodersarameters);

	// 获取编码所需的参数列表
	//获取EncoderParameter对象总数
	int count=encodersarameters->Count;
	outmsg.Format("在EncoderParameters中，有%d个 EncoderParameter对象。\n", 
		count);
	EncoderParameter *pEncoderParameter=encodersarameters->Parameter;

	// 查看每一个EncoderParameter对象信息
	for(int k = 0; k <count;++k)
	{
		//还原GUID信息
		CString strParameterCategory=_EncoderParameterCategoryFromGUID(
			pEncoderParameter[k].Guid);
		CString s;
		s.Format("\t参数种类: %s.\n", strParameterCategory); outmsg+=s;
		s.Format("\t该参数的属性值一共有 %d个\n",
			pEncoderParameter[k].NumberOfValues); outmsg+=s;
		s.Format("\t数据类型%d.\n", pEncoderParameter[k].Type); outmsg+=s;
	} 
	delete encodersarameters;
	//将所有信息导出outmsg
	return outmsg;
}

void GetAllEncoderParameter_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//设置输出信息时使用的字体、画刷
	SolidBrush brush(Color::Blue);
	FontFamily  fontFamily(L"宋体");
	Font  myFont(&fontFamily, 16, FontStyleRegular,UnitPixel);

	//将参数列表详细信息保存到msg之中
	CString msg=ShowAllEncoderParameters(L"image/jpeg");
	//显示参数列表信息
	MyDrawString(graphics, msg, myFont, SolidBrush(Color::Black), PointF(0,0));
}

void menuItem17_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Bitmap image(L"snike.bmp");
	RectF rect(0,0,image.GetWidth()/2,image.GetHeight()/2);
	graphics.DrawImage(&image,rect);

	//将BMP保存为PNG文件,不使用编码参数
	GUID pngGuid = GetEncoderClsid("image/png");
	MyImageSave(image, L"snike.png", &pngGuid, NULL);

	//使用第二种方法设置encoder参数
	MyImageSave(image,L"snike2.png", &pngGuid);
		
	//分别打开两种方法保存的图像
	Bitmap image_png1(L"snike.png");
	Bitmap image_png2(L"snike2.png");

	//绘制PNG格式的图片
	graphics.TranslateTransform(rect.Width,0);
	graphics.DrawImage(&image_png1,rect);
	graphics.TranslateTransform(rect.Width,0);
	graphics.DrawImage(&image_png2,rect);
}

void SaveBmp2tif_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	Bitmap myBitmap(L"jieba.bmp");

	// 获取TIFF格式文件的编码信息
	GUID tiffGuid = GetEncoderClsid("image/tiff");

	EncoderParameters params;	//其中已经包含了一个 EncoderParameter
	params.Count=1;
	// 使用LZW压缩方式将图图存为 TIFF文件
	params.Parameter[0].Guid= EncoderCompression;
	params.Parameter[0].NumberOfValues=1;
	params.Parameter[0].Type=EncoderParameterValueTypeLong;
	params.Parameter[0].Value=new long[1];

	((long*)params.Parameter[0].Value)[0] = (long)EncoderValueCompressionLZW;

	MyImageSave(myBitmap,L"jieba.tif", &tiffGuid, &params);

	delete params.Parameter[0].Value;
}

void SaveBMP2JPG_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//打开BMP文件
	Bitmap myBitmap(L"car.bmp");
	//获取显示图片所需要区域
	Rect imgrect(0,0, myBitmap.GetWidth(),myBitmap.GetHeight());

	graphics.DrawImage(&myBitmap, imgrect);

	//获取JPEG格式的编码方式
	GUID jpegGuid= GetEncoderClsid("image/jpeg");

	//分别设置JPEG文件的图片质量
	//编码参数种类为 Quality,
	EncoderParameters params;	//其中已经包含了一个 EncoderParameter
	params.Count=1;
	params.Parameter[0].Guid= EncoderQuality;
	params.Parameter[0].NumberOfValues=1;
	params.Parameter[0].Type=EncoderParameterValueTypeLong;
	params.Parameter[0].Value=new long[1];

	//设置JPEG图片质量为25级
	((long*)params.Parameter[0].Value)[0] = 25L;
	MyImageSave(myBitmap,L"car025.jpg", &jpegGuid, &params);

	//设置JPEG图片质量为50级
	((long*)params.Parameter[0].Value)[0] = 50L;
	MyImageSave(myBitmap,L"car050.jpg", &jpegGuid, &params);

	//设置JPEG图片质量为75级
	((long*)params.Parameter[0].Value)[0] = 75L;
	MyImageSave(myBitmap,L"car075.jpg", &jpegGuid, &params);

	delete params.Parameter[0].Value;

	//分别显示不同图片质量的JPEG文件
	Bitmap image01(L"car025.jpg");
	//绘图平面右移
	graphics.TranslateTransform(imgrect.Width+10,0);
	graphics.DrawImage(&image01,imgrect);

	Bitmap image02(L"car050.jpg");
	//重置绘图平面，下移
	graphics.ResetTransform();

	graphics.TranslateTransform(0,imgrect.Height+10);
	graphics.DrawImage(&image02,imgrect);

	Bitmap image05(L"car075.jpg");
	graphics.TranslateTransform(imgrect.Width+10,0);
	graphics.DrawImage(&image02,imgrect);
}

void TransformingJPEG_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	
	//打开JPEG文件
	Bitmap myBitmap(L"car.jpg");
	//获取显示图片所需要区域
	Rect imgrect(0,0, myBitmap.GetWidth(), myBitmap.GetHeight());
	//绘制原图
	graphics.DrawImage(&myBitmap,imgrect);

	//获取JPEG格式的编码方式
	GUID jpegGuid= GetEncoderClsid("image/jpeg");

	//分别设置JPEG文件的位置变换信息
	//编码参数种类为 Transformation
	EncoderParameters params;	//其中已经包含了一个 EncoderParameter
	params.Count=1;
	params.Parameter[0].Guid= EncoderTransformation;
	params.Parameter[0].NumberOfValues=1;
	params.Parameter[0].Type=EncoderParameterValueTypeLong;
	params.Parameter[0].Value=new long[1];

	((long*)params.Parameter[0].Value)[0] = (long)EncoderValueTransformRotate270;

	// 将图片旋转90度后保存
	MyImageSave(myBitmap,L"car0_rotate.jpg", &jpegGuid, &params);

	delete params.Parameter[0].Value;

	//绘制旋转后的图片
	graphics.TranslateTransform(imgrect.Width,0);
	Bitmap myBitmap2(L"car0_rotate.jpg");
	//获取显示图片所需要区域
	Rect imgrect2(0,0, myBitmap2.GetWidth(), myBitmap2.GetHeight());
	graphics.DrawImage(&myBitmap2, imgrect2);
}
void MultipleFrameImage_Click()
{
	//装入四张不同格式的图片
	Bitmap multi(L"dog.bmp");
	Bitmap page2(L"dog.gif");
	Bitmap page3(L"cute.jpg");
	Bitmap page4(L"cat.png");
	
	//获取tiff图像格式的编码信息
	GUID tiffGuid = GetEncoderClsid("image/tiff");
	
	EncoderParameters params;	//其中已经包含了一个 EncoderParameter
	params.Count=1;
	//参数类型：SaveFlag
	params.Parameter[0].Guid= EncoderSaveFlag;
	params.Parameter[0].NumberOfValues=1;
	params.Parameter[0].Type=EncoderParameterValueTypeLong;
	params.Parameter[0].Value=new long[1];

	((long*)params.Parameter[0].Value)[0] = (long)EncoderValueMultiFrame;
	
	//保存第一张图片
	MyImageSave(multi,L"Multiframe.tiff", &tiffGuid, &params);
	
	//保存第二张图片
	((long*)params.Parameter[0].Value)[0] = (long)EncoderValueFrameDimensionPage;
	multi.SaveAdd(&page2, &params);
	
	//保存第三张图片
	multi.SaveAdd(&page3, &params);
	
	//保存第四张图片
	multi.SaveAdd(&page4, &params);

	// 关闭TIFF文件
	((long*)params.Parameter[0].Value)[0] = (long)EncoderValueFlush;
	multi.SaveAdd(&params);

	delete params.Parameter[0].Value;

	AfxMessageBox("操作结束，请打开当前目录下的Multiframe.tiff查看图片添加结果");
}

void GetImageFromMultyFrame_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	//将窗口切分成四个部分，用以显示四幅帧图片
	Rect ClientRect(0,0,
		MyClient.Width,MyClient.Height);
	Rect r1(0,0,
		ClientRect.Width/2,ClientRect.Height/2);
	Rect r2(ClientRect.Width/2,0,
		ClientRect.Width/2,ClientRect.Height/2);
	Rect r3(0,
		ClientRect.Height/2,ClientRect.Width/2,ClientRect.Height/2);
	Rect r4(ClientRect.Width/2,
		ClientRect.Height/2,ClientRect.Width/2,ClientRect.Height/2);

	//打开TIF文件
	Bitmap  multi(L"Multiframe.tiff");

	//FrameDimension.Page:子帧图片
	GUID pageGuid = FrameDimensionPage;

	GUID pngGuid = GetEncoderClsid("image/png");

	//显示并保存第一帧图片
	multi.SelectActiveFrame(&pageGuid, 0);
	graphics.DrawImage(&multi, r1);
	MyImageSave(multi,L"Page0.png", &pngGuid);

	//显示并保存第二帧图片
	multi.SelectActiveFrame(&pageGuid, 1);
	graphics.DrawImage(&multi,r2);
	MyImageSave(multi,L"Page1.png",&pngGuid);

	////显示并保存第三帧图片
	multi.SelectActiveFrame(&pageGuid, 2);
	graphics.DrawImage(&multi, r3);
	MyImageSave(multi,L"Page2.png",&pngGuid);

	////显示并保存第四帧图片
	multi.SelectActiveFrame(&pageGuid, 3);
	graphics.DrawImage(&multi, r4);
	MyImageSave(multi,L"Page3.png",&pngGuid);
}

void QueryImage_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);

	SolidBrush brush(Color::Black);
	FontFamily  fontFamily(L"宋体");
	Font        myFont(&fontFamily, 16, FontStyleRegular, UnitPixel);

	Bitmap image(L"car.jpg");
	//获取图像的属性项
	UINT size, count=0;
	image.GetPropertySize(&size, &count);
	PropertyItem *propItem= (PropertyItem *)new BYTE[size];
	image.GetAllPropertyItems(size, count, propItem);

	// 图像中共有多少属性名可供查询
	if(count == 0)
	{
		AfxMessageBox("无属性名可供查询");
		return;
	}

	CString tmp;
	for(UINT j = 0; j < count; ++j)
	{
		CString s;
		s.Format("第 %d 个可供查找询的属性名的标记值为（16进制）：%x\n",
			j,propItem[j].id); tmp+=s;
		s.Format("第 %d 个属性名对应的属性项的信息为：\n",j); tmp+=s;

		//获取属性项详细描述信息
		s.Format("\t属性项的长度为%d\n\t数据类型为%d\n",
			propItem[j].length, propItem[j].type); tmp+=s;
	}

	delete propItem;

	//输出图像的属性信息
	MyDrawString(graphics, tmp, myFont, brush, PointF(0,0));
}

void SetProp_Click()
{
	//装入图片以供修改
	Bitmap image(L"car.jpg");

	// 设置图片的作者为Jasmine
	BYTE newWriterValue[] = {(BYTE)'J', (BYTE)'a', (BYTE)'s', (BYTE)'m', (BYTE)'i', (BYTE)'e', 0};

	//获取图像的属性项
	UINT size, count=0;
	image.GetPropertySize(&size, &count);
	PropertyItem *pp= (PropertyItem *)new BYTE[size];
	image.GetAllPropertyItems(size, count, pp);

	//0x13b：该标记值对应图片作者
	pp[0].id=0x13b;
	//属性值长度
	pp[0].length=strlen((const char*)newWriterValue);
	//2：属性值的数据类型为字符串
	pp[0].type=2;
	pp[0].value=newWriterValue;

	//设置图片属性
	image.SetPropertyItem(pp+0);
	GUID jpegGuid= GetEncoderClsid("image/jpeg");
	MyImageSave(image,L"newwriter.jpg", &jpegGuid);

	delete pp;

	//重新加载修改后的图片
	Bitmap image2(L"newwriter.jpg");
	//查看图片的作者信息
	size = image2.GetPropertyItemSize(0x13b);
	pp= (PropertyItem *)new BYTE[size];
	image2.GetPropertyItem(0x13b, size, pp);
	CString msg;
	msg.Format("图片的作者已经更改为\n\n%s",CString((BYTE*)pp->value));
	AfxMessageBox(msg);

	delete pp;
}

void OnCanvas_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	graphics.ScaleTransform(0.7f,0.7f);

	Bitmap image(L"box-2.bmp");

	int Width = image.GetWidth();
	int Height = image.GetHeight();
	Color color;
	graphics.DrawImage(&image,
		Rect(0, 0, Width, Height));
	
	//产生随机数序列
	for(int i=0;i<Width-5;i++)
	{
		for( int j=0; j<Height-5;j++)
		{
			int a=rand_Next(1000)%5;
			
			image.GetPixel(i+a, j+a, &color);
			//将该点的RGB值设置成附近五点之内的任一点
			image.SetPixel(i, j, color);
		}
		//动态绘制滤镜效果图
		graphics.DrawImage(&image,
			Rect(Width, 0, Width, Height));
	}
}

void OnWood_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	graphics.ScaleTransform(0.7f,0.7f);

	Bitmap image(L"box-2.bmp");

	int Width = image.GetWidth();
	int Height = image.GetHeight();
	Color colorTemp,color2;
	Color color;
	//绘制原图
	graphics.DrawImage(&image, Rect(0, 0, Width, Height));
	int tmp;
	for(int i=0;i<Width;i++)
	{
		for( int j=0; j<Height;j++)
		{
			image.GetPixel(i, j, &color);
			//根据该点RGB的平均值来确认该点的”明暗”
			int avg;
			avg=(color.GetRed()+color.GetGreen()+color.GetBlue())/3;
			if(avg>=128)
				tmp=255;
			else
				tmp=0;
			colorTemp = Color(255,tmp,tmp,tmp);
			//将计算后的RGB值回写到位图
			image.SetPixel(i, j, colorTemp);
		}
		//动态绘制滤镜效果图
		graphics.DrawImage(&image, Rect(Width, 0, Width, Height));
	}

}
//计算两点A、B之间的绝对距离
float fDistance(Point A,Point B)
{
	double i=((A.X-B.X)*(A.X-B.X))+((A.Y-B.Y)*(A.Y-B.Y));
	return (float)sqrt(i);
}

void Flashligt_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	
	Bitmap image(L"sports.bmp");
	int Width = image.GetWidth();
	int Height = image.GetHeight();
	int A=Width/2;
	int B=Height/2;
	//Center:图片中心点，发亮此值会让强光中心发生偏移
	Point Center= Point(A,B);
	//R：强光照射面的半径，即”光晕”
	int R=100;
	Color colorTemp,color2;
	Color color;
	graphics.DrawImage(&image, Rect(0, 0, Width, Height));
	//依次访问每个像素
	for(int x=0;x<Width;x++)
	{
		for( int y=0; y<Height;y++)
		{
			Point tmp= Point(x,y);
			//如果像素位于”光晕”之内
			if(fDistance(tmp,Center)<R)
			{
				image.GetPixel(x, y, &color);
				int r,g,b;
				//根据该点距离强光中心点的距离，分别让RGB值变量
				//220:亮度增加常量，该值越大，光亮度越强
				float tmp_r=220.0f*(1.0f-fDistance(tmp,Center)/R);
				
				r=color.GetRed()+(int)tmp_r;
				r=max(0,min(r,255));
				
				g=color.GetGreen()+(int)tmp_r;
				g=max(0,min(g,255));

				b=color.GetBlue()+(int)tmp_r;
				b=max(0,min(b,255));
		
				colorTemp = Color(255,(int)r,(int)g,(int)b);
				//将增亮后的像素值回写到位图
				image.SetPixel(x, y, colorTemp);
			}
		}
		//动态绘制滤镜效果图
		graphics.DrawImage(&image, Rect(Width, 0, Width, Height));
	}
}

void BlurAndSharpen_Click()
{
	Graphics &graphics=GetGraphics();
	graphics.Clear(Color::White);
	graphics.ScaleTransform(0.8f,0.8f);

	Bitmap image(L"snike.bmp");

	int Width = image.GetWidth();
	int Height = image.GetHeight();
	//image2:进行锐化处理
	Bitmap *image2=image.Clone(0,0,Width,Height,PixelFormatDontCare);

	Color colorTemp;
	Color color[3][3];
	//绘制原图
	graphics.DrawImage(&image, Rect(0, 0, Width, Height));

	for(int i=1;i<Width-2;i++)
	{
		for( int j=1; j<Height-2;j++)
		{
			//访问周围9个点的RGB值
			image.GetPixel(i-1, j-1, &color[0][0]);
			image.GetPixel(i-1, j, &color[0][1]);
			image.GetPixel(i-1, j+1, &color[0][2]);

			image.GetPixel(i, j-1, &color[1][0]);
			image.GetPixel(i, j, &color[1][1]);
			image.GetPixel(i, j+1, &color[1][2]);

			image.GetPixel(i+1, j-1, &color[2][0]);
			image.GetPixel(i+1, j, &color[2][1]);
			image.GetPixel(i+1, j+1, &color[2][2]);

			int rSum=0;
			int gSum=0;
			int bSum=0;
			//分别求出周围9个点的R、G、B之和
			for(int n=0;n<3;n++)
				for(int nn=0;nn<3;nn++)
				{
					rSum+=color[n][nn].GetR();	
					gSum+=color[n][nn].GetG();	
					bSum+=color[n][nn].GetB();	
				}
			//用RGB的平均值做为当前点的RGB值
			colorTemp = Color(255,(int)(rSum/9),(int)(gSum/9),(int)(bSum/9));
			//将计算后的RGB值回写到位图
			image.SetPixel(i, j,colorTemp);
		}
		//绘制经过平滑处理的效果图
		graphics.DrawImage(&image, Rect(Width, 0, Width, Height));
	}

	//进行锐化处理
	Color colorLeft,colornow;
	//常量dep：锐化系数，此值越大，锐化效果越明显
	float dep=0.550f;
	for(i=1;i<Width-1; i++)
	{
		for( int j=1;j<Height-1; j++)
		{
			image2->GetPixel(i, j, &colornow);	
			image2->GetPixel(i-1, j-1, &colorLeft);	

			float r=colornow.GetR()+(colornow.GetR()
				-colorLeft.GetR()*dep);
			r=min(255,max(0,r));

			float g=colornow.GetG()+(colornow.GetG() -colorLeft.GetG()*dep);
			g=min(255,max(0,g));
			float b=colornow.GetB()+(colornow.GetB()-colorLeft.GetB()*dep);
			b=min(255,max(0,b));

			colorTemp = Color(255,(int)r,(int)g,(int)b);

			//将计算后的RGB值回写到位图
			image2->SetPixel(i, j, colorTemp);
		}

		graphics.DrawImage(image2, Rect(Width*2, 0, Width, Height));
	}
	delete image2;
}


void ShowAllEncoderParameters(ImageCodecInfo*, CString &msg);
HRESULT EncoderParameterCategoryFromGUID(GUID guid, WCHAR* category, UINT maxChars);
HRESULT ValueTypeFromULONG(ULONG index, WCHAR* strValueType, UINT maxChars);

void ShowAllEncoder()
{
   UINT  num;        // Number of image encoders
   UINT  size;       // Size of the image encoder array in bytes

   ImageCodecInfo* pImageCodecInfo;

   // How many encoders are there?
   // How big (in bytes) is the array of all ImageCodecInfo obects?
   GetImageEncodersSize(&num, &size);

   // Create a buffer large enough to hold the array of ImageCodecInfo
   // objects that will be returned by GetImageEncoders.
   pImageCodecInfo = (ImageCodecInfo*)(malloc(size));

   // GetImageEncoders creates an array of ImageCodecInfo objects
   // and copies that array into a previously allocated buffer. 
   // The third argument, imageCodecInfos, is a pointer to that buffer. 
   GetImageEncoders(num, size, pImageCodecInfo);
	
   // For each ImageCodecInfo object in the array, show all parameters.
   for(UINT j = 0; j < num; ++j)
   {
		CString msg;
		ShowAllEncoderParameters(&(pImageCodecInfo[j]), msg);
		AfxMessageBox(msg);
   }

   free(pImageCodecInfo);
}


VOID ShowAllEncoderParameters(ImageCodecInfo* pImageCodecInfo, CString &msg)
{
   CONST MAX_CATEGORY_LENGTH = 50;
   CONST MAX_VALUE_TYPE_LENGTH = 50;
   WCHAR strParameterCategory[MAX_CATEGORY_LENGTH] = L"";
   WCHAR strValueType[MAX_VALUE_TYPE_LENGTH] = L"";

	CString s(pImageCodecInfo->MimeType);
	s+="\n";
	msg+=s;

   // Create a Bitmap (inherited from Image) object so that we can call
   // GetParameterListSize and GetParameterList.
   Bitmap bitmap(1, 1);

   // How big (in bytes) is the encoder's parameter list?
   UINT listSize = 0; 
   listSize = bitmap.GetEncoderParameterListSize(&pImageCodecInfo->Clsid);
   s.Format("  The parameter list requires %d bytes.\n", listSize);
	msg+=s;

   if(listSize == 0)
      return;

   // Allocate a buffer large enough to hold the parameter list.
   EncoderParameters* pEncoderParameters = NULL;
   pEncoderParameters = (EncoderParameters*)malloc(listSize);

   if(pEncoderParameters == NULL)
      return;

   // Get the parameter list for the encoder.
   bitmap.GetEncoderParameterList(
      &pImageCodecInfo->Clsid, listSize, pEncoderParameters);

   // pEncoderParameters points to an EncoderParameters object, which
   // has a Count member and an array of EncoderParameter objects.
   // How many EncoderParameter objects are in the array?
   s.Format("  There are %d EncoderParameter objects in the array.\n", 
      pEncoderParameters->Count);
	msg+=s;

   // For each EncoderParameter object in the array, list the
   // parameter category, data type, and number of values.
   for(UINT k = 0; k < pEncoderParameters->Count; ++k)
   {
      EncoderParameterCategoryFromGUID(
         pEncoderParameters->Parameter[k].Guid, strParameterCategory, MAX_CATEGORY_LENGTH);

      ValueTypeFromULONG(
         pEncoderParameters->Parameter[k].Type, strValueType, MAX_VALUE_TYPE_LENGTH);

      s.Format("    Parameter[%d]\n", k); msg+=s;
      s.Format("      The category is %s.\n", CString(strParameterCategory)); msg+=s;
      s.Format("      The data type is %s.\n", strValueType); msg+=s;

      s.Format("      The number of values is %d.\n",
      pEncoderParameters->Parameter[k].NumberOfValues); msg+=s;
   } // for

   free(pEncoderParameters);
} // ShowAllEncoderParameters


HRESULT MyStringCchCopy(LPWSTR pszDest, size_t cchDest, LPCWSTR pszSrc)
{
	return wcsncpy(pszDest, pszSrc, cchDest)? Ok: E_FAIL;
}

HRESULT EncoderParameterCategoryFromGUID(GUID guid, WCHAR* category, UINT maxChars)
{
   HRESULT hr = E_FAIL;

   if(guid == EncoderCompression)
      hr = MyStringCchCopy(category, maxChars, L"Compression");
   else if(guid == EncoderColorDepth)
      hr = MyStringCchCopy(category, maxChars, L"ColorDepth");
   else if(guid == EncoderScanMethod)
      hr = MyStringCchCopy(category, maxChars, L"ScanMethod");
   else if(guid == EncoderVersion)
      hr = MyStringCchCopy(category, maxChars, L"Version");
   else if(guid == EncoderRenderMethod)
      hr = MyStringCchCopy(category, maxChars, L"RenderMethod");
   else if(guid == EncoderQuality)
      hr = MyStringCchCopy(category, maxChars, L"Quality");
   else if(guid == EncoderTransformation)
      hr = MyStringCchCopy(category, maxChars, L"Transformation");
   else if(guid == EncoderLuminanceTable)
      hr = MyStringCchCopy(category, maxChars, L"LuminanceTable");
   else if(guid == EncoderChrominanceTable)
      hr = MyStringCchCopy(category, maxChars, L"ChrominanceTable");
   else if(guid == EncoderSaveFlag)
      hr = MyStringCchCopy(category, maxChars, L"SaveFlag");
   else
      hr = MyStringCchCopy(category, maxChars, L"Unknown category");

   return hr;
} // EncoderParameterCategoryFromGUID


HRESULT ValueTypeFromULONG(ULONG index, WCHAR* strValueType, UINT maxChars)
{
   HRESULT hr = E_FAIL;

   WCHAR* valueTypes[] = {
      L"Nothing",                  // 0
      L"ValueTypeByte",            // 1
      L"ValueTypeASCII",           // 2
      L"ValueTypeShort",           // 3
      L"ValueTypeLong",            // 4
      L"ValueTypeRational",        // 5
      L"ValueTypeLongRange",       // 6
      L"ValueTypeUndefined",       // 7
      L"ValueTypeRationalRange"};  // 8

   hr = MyStringCchCopy(strValueType, maxChars, valueTypes[index]);
   return hr;

} // ValueTypeFromULONG