repos_ecs/其他2015后/cpropertygrid_src_v1.03/Demo3_CPropertyGrid_Src/CPropertyGrid/PropertyGridExtItemDegree.cpp

#include "stdafx.h"

#include "PropertyGridInplaceEdit.h"
#include "PropertyGridInplaceButton.h"
#include "PropertyGridInplaceList.h"
#include "PropertyGridItem.h"
#include "PropertyGridExtItemDegree.h"
#include "PropertyGrid.h"

/////////////////////////////////////////////////////////////////////////////
// CInplaceDegreeEdit
/////////////////////////////////////////////////////////////////////////////

CInplaceDegreeEdit::CInplaceDegreeEdit(int nSecondPrecision)
	: CDegreeEdit(nSecondPrecision)
	, m_pItem(0)
	, m_pGrid(0)
{	
}

CInplaceDegreeEdit::~CInplaceDegreeEdit()
{
}

BEGIN_MESSAGE_MAP(CInplaceDegreeEdit, CDegreeEdit)
	//{{AFX_MSG_MAP(CInplaceDegreeEdit)
	ON_WM_CTLCOLOR_REFLECT()
	ON_CONTROL_REFLECT(EN_KILLFOCUS, OnEnKillfocus)
	ON_CONTROL_REFLECT(EN_SETFOCUS, OnEnSetfocus)
	ON_WM_LBUTTONDBLCLK()
	ON_WM_GETDLGCODE()
	ON_WM_KEYDOWN()
	ON_WM_CHAR()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

void CInplaceDegreeEdit::SetValue(CString strValue)
{
	m_strValue = strValue;
}

void CInplaceDegreeEdit::Create(CPropertyGridExtItemDegree* pItem, CRect rect)
{
	ASSERT(pItem && pItem->GetGrid());
	m_pGrid = pItem->GetGrid();
	m_pItem = pItem;

	if (!m_hWnd)
	{
		CDegreeEdit::Create(WS_CHILD|ES_AUTOHSCROLL, rect, m_pGrid, 0);
	}
	SetWindowText(m_strValue);
	SetWindowPos(0, rect.left, rect.top, rect.Width(), rect.Height(), SWP_NOZORDER|SWP_SHOWWINDOW);	
}

HBRUSH CInplaceDegreeEdit::CtlColor(CDC* pDC, UINT /*nCtlColor*/)
{
	pDC->SetTextColor(GetStyle() & ES_READONLY ? GetSysColor(COLOR_GRAYTEXT): ((CPropertyGridView*)m_pGrid)->m_clrFore);

	COLORREF clr = ((CPropertyGridView*)m_pGrid)->m_clrBack;

	if (clr != m_clrBack || !m_brBack.GetSafeHandle())
	{
		m_brBack.DeleteObject();
		m_brBack.CreateSolidBrush(clr);
		m_clrBack = clr;

	}

	pDC->SetBkColor(m_clrBack);
	
	return m_brBack;
}

void CInplaceDegreeEdit::OnEnSetfocus()
{
	ASSERT(m_pItem && m_pGrid);

	m_pGrid->Invalidate(FALSE);
}

void CInplaceDegreeEdit::OnEnKillfocus()
{
	if (m_pItem)
	{	
		m_pItem->OnValidateEdit();
		m_pGrid->Invalidate(FALSE);
	}
}

UINT CInplaceDegreeEdit::OnGetDlgCode()
{
	return DLGC_WANTALLKEYS;
}

void CInplaceDegreeEdit::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
	if (nChar == VK_TAB) return;
	if (nChar == VK_ESCAPE || nChar == VK_RETURN)
	{
		m_pGrid->SetFocus();
		return;
	}
	CDegreeEdit::OnChar(nChar, nRepCnt, nFlags);
}

void CInplaceDegreeEdit::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
	if (nChar == VK_TAB)
	{
		CWnd* pParent = m_pGrid->GetParent();
		if (!pParent || !pParent->GetParent())
		{
			ASSERT(FALSE);
			return;
		}
		CWnd* pWndNext = pParent->GetParent()->GetNextDlgTabItem( pParent, ::GetKeyState(VK_SHIFT) < 0 );
		if (pWndNext != NULL)
		{
			pWndNext->SetFocus();
		}
		return;
	}
	else if (nChar == VK_ESCAPE)
	{
		SetWindowText(m_strValue);
		return;
	}
	else if (nChar == VK_RETURN)
	{
		return;
	}
	else if (nChar == VK_DOWN || nChar == VK_UP)
	{
		if (SelectConstraint(nChar == VK_DOWN? +1: -1, FALSE))
		{
			MaskSelectAll();
			return;
		}
	}

	CDegreeEdit::OnKeyDown(nChar, nRepCnt, nFlags);
}

BOOL CInplaceDegreeEdit::SelectConstraint(int nDirection, BOOL bCircle)
{
	CPGItemConstraints* pList = m_pItem->GetConstraints();
	if (pList->IsEmpty())
		return FALSE;

	CString str;
	GetWindowText(str);
	int nIndex = pList->FindConstraint( str );
	nIndex+= nDirection;
	if (nIndex >= pList->GetCount()) nIndex = bCircle ? 0 : (ULONG)pList->GetCount() - 1;
	if (nIndex < 0) nIndex = bCircle ? (ULONG)pList->GetCount() - 1 : 0;

	POSITION pos = pList->FindIndex(nIndex);
	SetWindowText( pList->GetAt(pos) );
	return TRUE;
}

void CInplaceDegreeEdit::OnLButtonDblClk(UINT nFlags, CPoint point)
{
	if (m_pItem != NULL && !m_pItem->GetReadOnly() && SelectConstraint(+1, TRUE))
	{
		m_pGrid->SetFocus();
		return;
	}	

	CDegreeEdit::OnLButtonDblClk(nFlags, point);
}

void CInplaceDegreeEdit::DestroyItem()
{
	// reset variables to defaults.
	m_pItem = NULL;
	m_pGrid = NULL;
	m_strValue.Empty();
	m_brBack.DeleteObject();

	// destroy the window.
	DestroyWindow( );
}

/////////////////////////////////////////////////////////////////////////////
// CPropertyGridExtItemDegree
/////////////////////////////////////////////////////////////////////////////

CPropertyGridExtItemDegree::CPropertyGridExtItemDegree(CString strCaption, double fDegree, int nSecondPrecision) 
	: CPropertyGridItem(strCaption)
	, m_wndDegreeEdit(nSecondPrecision)
{
	m_wndDegreeEdit.m_pItem = this;

	m_pBindDegree = NULL;
	m_nFlags = pgitemHasEdit;
	m_nSecondPrecision = nSecondPrecision;

	SetDegree(fDegree);
}

CPropertyGridExtItemDegree::CPropertyGridExtItemDegree(UINT nID, double fDegree, int nSecondPrecision) 
	: CPropertyGridItem(nID)
	, m_wndDegreeEdit(nSecondPrecision)
{
	m_wndDegreeEdit.m_pItem = this;

	m_pBindDegree = NULL;
	m_nFlags = pgitemHasEdit;
	m_nSecondPrecision = nSecondPrecision;

	SetDegree(fDegree);
}

CPropertyGridExtItemDegree::~CPropertyGridExtItemDegree()
{
	m_wndDegreeEdit.DestroyItem();
}

void CPropertyGridExtItemDegree::SetDegree(double fDegree)
{
	m_fDegree = fDegree;
	CPropertyGridItem::SetValue( CDegreeEdit::DegreeToString(m_fDegree, m_nSecondPrecision) );

	if (m_pBindDegree)
		*m_pBindDegree = m_fDegree;
}

double CPropertyGridExtItemDegree::GetDegree()
{
	return m_fDegree;
}

void CPropertyGridExtItemDegree::SetValue(CString strValue)
{
	SetDegree(CDegreeEdit::StringToDegree(strValue));
}

void CPropertyGridExtItemDegree::OnValidateEdit()
{
	if (m_wndDegreeEdit.GetSafeHwnd())
	{
		m_wndDegreeEdit.ShowWindow(SW_HIDE);
		
		CString strValue;
		m_wndDegreeEdit.GetWindowText(strValue);

		if (m_strValue != strValue)
		{
			OnValueChanged(strValue);
			m_pGrid->Invalidate(FALSE);
		}
	}
}

void CPropertyGridExtItemDegree::SetEditText(CString str)
{
	if (!m_pGrid) return;

	if (m_wndDegreeEdit.GetSafeHwnd())
		m_wndDegreeEdit.SetWindowText(str);
}

void CPropertyGridExtItemDegree::OnSelect()
{
	ASSERT(m_bVisible);

	if (!m_bReadOnly && (m_nFlags & (pgitemHasComboButton | pgitemHasExpandButton)))
	{
		GetInplaceButton().Create(this, GetItemRect());
	}

	if (m_nFlags & pgitemHasEdit)
	{
		m_wndDegreeEdit.SetValue(m_strValue);
		m_wndDegreeEdit.Create(this, GetValueRect());
		m_wndDegreeEdit.SetReadOnly(m_bReadOnly);
		m_wndDegreeEdit.SetFont(GetGrid()->GetFont());
		m_wndDegreeEdit.SetMargins(3, 0);
	}
}

BOOL CPropertyGridExtItemDegree::OnChar(UINT nChar)
{
	if (m_nFlags & pgitemHasEdit)
	{
		OnSelect();
		m_wndDegreeEdit.SetFocus();
		m_wndDegreeEdit.MaskSelectAll();
		if (nChar != VK_TAB) m_wndDegreeEdit.SendMessage(WM_CHAR, nChar);
		return TRUE;
	}
	return FALSE;
}

void CPropertyGridExtItemDegree::OnLButtonDblClk()
{
	if (HasChilds())
	{
		if(m_bExpanded) Collapse(); else Expand();
	} 
	else
	{
		OnSelect();
		if (m_nFlags & pgitemHasEdit)
		{
			if (!GetReadOnly() && m_wndDegreeEdit.SelectConstraint(+1, TRUE))
			{
				OnValidateEdit();
			}
			else
			{
				m_wndDegreeEdit.SetFocus();
				m_wndDegreeEdit.MaskSelectAll();
			}
		}
		else if (!GetReadOnly())
		{
			CPGItemConstraints* pList = GetConstraints();
			if (pList->IsEmpty())
				return ;

			int nIndex = pList->FindConstraint(m_strValue);
			nIndex += +1;
			if (nIndex >= pList->GetCount()) nIndex = 0;

			POSITION pos = pList->FindIndex(nIndex);
			OnValueChanged(pList->GetAt(pos));
		}
	}
}

void CPropertyGridExtItemDegree::BindToDegree(double* pBindDegree)
{
	m_pBindDegree = pBindDegree;
	if (m_pBindDegree)
		SetDegree(*m_pBindDegree);
}