lyfz_repos/经典版源码/kernelcode/DrawIDE/IDE/Graph.cpp

// CGraph.cpp: implementation of the CGraph class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
//#include <afxtempl.h>
#include "drawobj.h"
#include "graph.h"

//---------------------------------------------- CGraph ---------

CGraph::CGraph(CSize size)
{
	m_Type = 1;
	m_sizePic.cx = size.cx;
	m_sizePic.cy = size.cy;
	m_bGrid = FALSE;
	m_sizeGrid.cx = 40;
	m_sizeGrid.cy = 40;
	m_clrBack = RGB(230, 241, 249);//RGB(255, 255, 255);//RGB(92, 92, 92);画面默认背景 颜色
}

CGraph::~CGraph(void)
{
	ClearDrawList();
}

void CGraph::ClearDrawList()
{
	CDrawObj *pDrawObj = NULL;
	while( !m_DrawObjList.IsEmpty() )
	{
		// RemoveTail删除元素并返回对象指针;
		pDrawObj = m_DrawObjList.RemoveTail();
		if ( pDrawObj )
			delete pDrawObj;
		pDrawObj = NULL;
	}
}

void CGraph::SetPicFile(IN LPCTSTR lpPicPath)
{
	if ( lpPicPath != NULL )
		m_strPicFile = lpPicPath;
}

void CGraph::SetView(CView* pView)
{
	m_pView = pView;	// if ( pView == NULL )
	POSITION pos = m_DrawObjList.GetHeadPosition();

	while( pos != NULL )
	{
		CDrawObj *pDrawObj = m_DrawObjList.GetNext(pos);
		pDrawObj->m_pView = m_pView;
	}
}

BOOL CGraph::Load(void)
{
	// 加载前,先清空以前的;
	ClearDrawList();

	if ( m_pView == NULL)
		return FALSE;

	// 从文件中读取;
	CFile file;
	if ( !file.Open(m_strPicFile,CFile::modeRead) )
		return FALSE;

	CArchive ar(&file,CArchive::load);
	ar >> m_Type;
	ar >> m_sizePic;
	ar >> m_sizeGrid;
	ar >> m_bGrid;
	ar >> m_clrBack;
	m_DrawObjList.Serialize(ar);

	// 编辑按钮控件数次，有撤销显示时，继续编辑，点击撤销，客户端会崩溃 解决;
	POSITION pos = m_DrawObjList.GetHeadPosition();
	while ( pos != NULL )
	{
		CDrawObj *pDrawObj = m_DrawObjList.GetNext(pos);
		pDrawObj->m_pView = m_pView;
	}

	// 释放资源;
	ar.Close();
	file.Close();

	return TRUE;
}

void CGraph::Store(void)
{
	CFile file;
	if(file.Open(m_strPicFile,CFile::modeCreate|CFile::modeWrite))
	{
		CArchive ar(&file,CArchive::store);
		ar << m_Type;
		ar << m_sizePic;
		ar << m_sizeGrid;
		ar << m_bGrid;
		ar << m_clrBack;
		m_DrawObjList.Serialize(ar);
		ar.Flush();
		ar.Close();
		file.Flush();
		file.Close();
	}
}

/************************************************************************/
/*  函数：[5/9/2016 IT];
/*  描述：;
/*  参数：;
/*  	[IN] ：;
/*  	[OUT] ：;
/*  	[IN/OUT] ：;
/*  返回：void;
/*  注意：;
/*  示例：;
/*
/*  修改：;
/*  日期：;
/*  内容：;
/************************************************************************/
CRect CGraph::Draw(IN CDC* pDC, IN CString &sOCXPath, IN int &iOcxIndex, IN BOOL bPrint /* = FALSE */)
{
	CRect rectRet=NULL;
	CRect rect;
	// 1.判断是否打印;
	if ( !bPrint )
	{
		if (g_bRun)
		{
			m_pView->GetClientRect(rect);
			CRect tmp = CRect(CPoint(0,0),m_sizePic);;
			rect.UnionRect( rect, tmp );
			pDC->FillSolidRect(rect,m_clrBack);
		}
		else
		{
			rect = CRect(CPoint(0,0),m_sizePic);
			pDC->FillSolidRect(rect,m_clrBack);
		}
	}
	pDC->SetBkMode(TRANSPARENT);

	// 2.如果没运行,并且不是打印状态,则画网格;
	if(!CDrawObj::bRuning && !pDC->IsPrinting() && m_bGrid && (!bPrint) )
	{
		int r = (64+GetRValue(m_clrBack)) % 256;
		int g = (64+GetGValue(m_clrBack)) % 256;
		int b = (64+GetBValue(m_clrBack)) % 256;
		CPen pen(PS_DOT,1,RGB(r,g,b));
		CPen* pOldPen = pDC->SelectObject(&pen);
		int Width = rect.Width();
		int Height = rect.Height();
		for(int w=0;w<Width;w+=m_sizeGrid.cx)
		{
			pDC->MoveTo(rect.left + w-1, rect.top); 
			pDC->LineTo(rect.left + w-1, rect.bottom); 
		}
		for(int h=0;h<Height;h+=m_sizeGrid.cy)
		{ 
			pDC->MoveTo(rect.left , rect.top + h-1); 
			pDC->LineTo(rect.right, rect.top + h-1); 
		}
		pDC->SelectObject(pOldPen);

		DeleteObject( pen );
	}

	// 3.GetClipBox取得当前需要重绘的矩形区域;
	// 并据此计算需要重绘那几行;
	CRect rectClip;
	pDC->GetClipBox(&rectClip);

	// 4.逐个图元判断是否相交,相交则绘制出图元;
	POSITION pos = m_DrawObjList.GetHeadPosition();
	while(pos!=NULL)
	{
		CDrawObj* pObj = m_DrawObjList.GetNext(pos);
		CRect rect = pObj->m_rect;
		rect.NormalizeRect();
		rect.InflateRect(5,5,5,5);
		if(rect.IntersectRect(&rect,&rectClip)) 
		{// 图元与裁剪区相交,则图元重绘;
			if ( pObj->m_strCaption == _T("OCX"))
			{
				rectRet = pObj->m_rect;
			}
			pObj->Draw(pDC);
		}
	}

	// 5.编辑状态下,且不是打印状态下,画整个图元视图的边框;
	if (!g_bRun && (!bPrint) )
	{
		CRect rect1;
		CBrush brush(RGB(202,202,202));
		CBrush *prb;
		prb=pDC->SelectObject(&brush);

		rect1 = CRect(0,0,m_sizePic.cx,5);
		pDC->FillRect(&rect1,&brush);
		rect1 = CRect(0,0,5,m_sizePic.cy);
		pDC->FillRect(&rect1,&brush);
		rect1 = CRect(0,m_sizePic.cy,m_sizePic.cx,m_sizePic.cy-5);
		pDC->FillRect(&rect1,&brush);
		rect1 = CRect(m_sizePic.cx,0,m_sizePic.cx-5,m_sizePic.cy);
		pDC->FillRect(&rect1,&brush);
		
		// 画8根线
		CPen pen(PS_SOLID,1,RGB(232,232,232));
		CPen* pOldPen = pDC->SelectObject(&pen);
		pDC->MoveTo(1, m_sizePic.cy-1); 
		pDC->LineTo(1, 1);
		pDC->LineTo(m_sizePic.cx-1, 1);
		
		CPen pen1(PS_SOLID,1,RGB(64,64,64));
		pDC->SelectObject(&pen1);
		pDC->MoveTo(1, m_sizePic.cy-1); 
		pDC->LineTo(m_sizePic.cx, m_sizePic.cy-1);
		pDC->LineTo(m_sizePic.cx, 1);
		
		CPen pen2(PS_SOLID,1,RGB(242,242,242));
		pDC->SelectObject(&pen2);
		pDC->MoveTo(5, m_sizePic.cy-5); 
		pDC->LineTo(m_sizePic.cx-4, m_sizePic.cy-5);
		pDC->LineTo(m_sizePic.cx-4, 5);
		
		CPen pen3(PS_SOLID,1,RGB(96,96,96));
		pDC->SelectObject(&pen3);
		pDC->MoveTo(4, m_sizePic.cy-5); 
		pDC->LineTo(4, 4);
		pDC->LineTo(m_sizePic.cx-5, 4);
		
		pDC->SelectObject(pOldPen);
		pDC->SelectObject(prb);
		brush.DeleteObject();
		pDC->SetBkMode(OPAQUE);

		DeleteObject( pen );
		DeleteObject( pen1 );
		DeleteObject( pen2 );
		DeleteObject( pen3 );
		DeleteObject( brush );
	}
	
	return rectRet;
}

void CGraph::Print(CDC* pDC)
{
	ASSERT(m_pView);
	CString sTemp;
	int nTemp=0;
	CSize size = m_sizePic;
	CClientDC dc(m_pView);
	CDC dcMem;
	dcMem.CreateCompatibleDC(&dc);
	CBitmap* pBitmap = new CBitmap;
	pBitmap->CreateCompatibleBitmap(&dc,size.cx,size.cy);
	CBitmap* pOldBitmap = dcMem.SelectObject(pBitmap);
	Draw(&dcMem,sTemp,nTemp,TRUE);
	dcMem.InvertRect(CRect(CPoint(0,0),m_sizePic));
	for(int y=0;y<size.cy;y++)
	{
		int nX1 = 0;
		COLORREF clrPixel = ::GetPixel(dcMem.m_hDC,0,y);
		int nRValue0 = GetRValue(clrPixel);
		int nGValue0 = GetGValue(clrPixel);
		int nBValue0 = GetBValue(clrPixel);

		int x = 0;
		for( x=1;x<size.cx;x++)
		{
			COLORREF clrPixel = ::GetPixel(dcMem.m_hDC,x,y);
			int nRValue = GetRValue(clrPixel);
			int nGValue = GetGValue(clrPixel);
			int nBValue = GetBValue(clrPixel);
			int nRDiff = (nRValue<nRValue0)?nRValue0-nRValue:nRValue-nRValue0;
			int nGDiff = (nGValue<nGValue0)?nGValue0-nGValue:nGValue-nGValue0;
			int nBDiff = (nBValue<nBValue0)?nBValue0-nBValue:nBValue-nBValue0;
			if(nRDiff+nGDiff+nBDiff>32)
			{
				RECT rect;
				rect.left = nX1;
				rect.top = y;
				rect.right = x;
				rect.bottom = y+1;
				::SetBkColor(pDC->m_hDC,RGB(nRValue0,nGValue0,nBValue0));
				::ExtTextOut(pDC->m_hDC,0,0,ETO_OPAQUE,&rect,NULL,0,NULL);
				nX1 = x;
				nRValue0 = nRValue;
				nGValue0 = nGValue;
				nBValue0 = nBValue;
			}
		}
		RECT rect;
		rect.left = nX1;
		rect.top = y;
		rect.right = x;
		rect.bottom = y+1;
		::SetBkColor(pDC->m_hDC,RGB(nRValue0,nGValue0,nBValue0));
		::ExtTextOut(pDC->m_hDC,0,0,ETO_OPAQUE,&rect,NULL,0,NULL);
	}
	//2011-11-01 add
	DeleteObject( pBitmap );
	dcMem.SelectObject(pOldBitmap);
	dcMem.DeleteDC( );
	delete pBitmap;
}

void CGraph::Fresh(void)
{
#if 0
	if(!m_DrawObjList.IsEmpty())
	{
		CRect rect;
		for(POSITION pos = m_DrawObjList.GetHeadPosition();pos!=NULL;)
		{
			POSITION pos1 = pos ; //要在这里做一个备份
			if( (int)pos1 == 0xfeeefeee ) break;	// 频繁单击画面会出现异常，暂时不知道什么解决
			CDrawObj* pObj = m_DrawObjList.GetAt(pos1);
			if( (int)pObj == 0xcdcdcdcd || (int)pObj == 0xfeeefeee || (int)pObj == 0x00000001 ) break;	// 频繁单击画面会出现异常，暂时不知道什么解决
			if( (int)pObj->m_pView == 0xfeeefeee || (int)pObj->m_pView == 0x00000001 ) 		// 频繁单击画面会出现异常，暂时不知道什么解决
			{
				TRACE(g_strTRACE0);
				break;
			}
			
			if( pObj->Fresh(rect) )
				InvalidateRect( pObj->m_pView->GetSafeHwnd(),rect,true );

			m_DrawObjList.GetNext(pos);//他会改变 pos的值
		}
	}
#else
	CRect rect;
	CDrawObj* pObj = NULL;
	POSITION pos = m_DrawObjList.GetHeadPosition();
	while( pos != NULL)
	{
		pObj = m_DrawObjList.GetNext(pos);
		if ( pObj->Fresh(rect) )
			InvalidateRect( pObj->m_pView->GetSafeHwnd(), rect, true);
	}
#endif
}