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GridCell.cpp
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GridCell.cpp
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// GridCell.cpp : implementation file
//
// MFC Grid Control - Main grid cell class
//
// Provides the implementation for the "default" cell type of the
// grid control. Adds in cell editing.
//
// Written by Chris Maunder <[email protected]>
// Copyright (c) 1998-2005. All Rights Reserved.
//
// This code may be used in compiled form in any way you desire. This
// file may be redistributed unmodified by any means PROVIDING it is
// not sold for profit without the authors written consent, and
// providing that this notice and the authors name and all copyright
// notices remains intact.
//
// An email letting me know how you are using it would be nice as well.
//
// This file is provided "as is" with no expressed or implied warranty.
// The author accepts no liability for any damage/loss of business that
// this product may cause.
//
// For use with CGridCtrl v2.20+
//
// History:
// Eric Woodruff - 20 Feb 2000 - Added PrintCell() plus other minor changes
// Ken Bertelson - 12 Apr 2000 - Split CGridCell into CGridCell and CGridCellBase
// <[email protected]>
// C Maunder - 17 Jun 2000 - Font handling optimsed, Added CGridDefaultCell
//
/////////////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "GridCell.h"
#include "InPlaceEdit.h"
#include "GridCtrl.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
IMPLEMENT_DYNCREATE(CGridCell, CGridCellBase)
IMPLEMENT_DYNCREATE(CGridDefaultCell, CGridCell)
/////////////////////////////////////////////////////////////////////////////
// GridCell
CGridCell::CGridCell()
{
m_plfFont = NULL;
CGridCell::Reset();
}
CGridCell::~CGridCell()
{
delete m_plfFont;
}
/////////////////////////////////////////////////////////////////////////////
// GridCell Attributes
void CGridCell::operator=(const CGridCell& cell)
{
if (this != &cell) CGridCellBase::operator=(cell);
}
void CGridCell::Reset()
{
CGridCellBase::Reset();
m_strText.Empty();
m_nImage = -1;
m_lParam = NULL; // BUG FIX J. Bloggs 20/10/03
m_pGrid = NULL;
m_bEditing = FALSE;
m_pEditWnd = NULL;
m_nFormat = (DWORD)-1; // Use default from CGridDefaultCell
m_crBkClr = CLR_DEFAULT; // Background colour (or CLR_DEFAULT)
m_crFgClr = CLR_DEFAULT; // Forground colour (or CLR_DEFAULT)
m_nMargin = (UINT)-1; // Use default from CGridDefaultCell
delete m_plfFont;
m_plfFont = NULL; // Cell font
}
void CGridCell::SetFont(const LOGFONT* plf)
{
if (plf == NULL)
{
delete m_plfFont;
m_plfFont = NULL;
}
else
{
if (!m_plfFont)
m_plfFont = new LOGFONT;
if (m_plfFont)
memcpy(m_plfFont, plf, sizeof(LOGFONT));
}
}
LOGFONT* CGridCell::GetFont() const
{
if (m_plfFont == NULL)
{
CGridDefaultCell *pDefaultCell = (CGridDefaultCell*) GetDefaultCell();
if (!pDefaultCell)
return NULL;
return pDefaultCell->GetFont();
}
return m_plfFont;
}
CFont* CGridCell::GetFontObject() const
{
// If the default font is specified, use the default cell implementation
if (m_plfFont == NULL)
{
CGridDefaultCell *pDefaultCell = (CGridDefaultCell*) GetDefaultCell();
if (!pDefaultCell)
return NULL;
return pDefaultCell->GetFontObject();
}
else
{
static CFont Font;
Font.DeleteObject();
Font.CreateFontIndirect(m_plfFont);
return &Font;
}
}
DWORD CGridCell::GetFormat() const
{
if (m_nFormat == (DWORD)-1)
{
CGridDefaultCell *pDefaultCell = (CGridDefaultCell*) GetDefaultCell();
if (!pDefaultCell)
return 0;
return pDefaultCell->GetFormat();
}
return m_nFormat;
}
UINT CGridCell::GetMargin() const
{
if (m_nMargin == (UINT)-1)
{
CGridDefaultCell *pDefaultCell = (CGridDefaultCell*) GetDefaultCell();
if (!pDefaultCell)
return 0;
return pDefaultCell->GetMargin();
}
return m_nMargin;
}
/////////////////////////////////////////////////////////////////////////////
// GridCell Operations
BOOL CGridCell::Edit(int nRow, int nCol, CRect rect, CPoint /* point */, UINT nID, UINT nChar)
{
if ( m_bEditing )
{
if (m_pEditWnd)
m_pEditWnd->SendMessage ( WM_CHAR, nChar );
}
else
{
DWORD dwStyle = ES_LEFT;
if (GetFormat() & DT_RIGHT)
dwStyle = ES_RIGHT;
else if (GetFormat() & DT_CENTER)
dwStyle = ES_CENTER;
m_bEditing = TRUE;
// InPlaceEdit auto-deletes itself
CGridCtrl* pGrid = GetGrid();
m_pEditWnd = new CInPlaceEdit(pGrid, rect, dwStyle, nID, nRow, nCol, GetText(), nChar);
}
return TRUE;
}
void CGridCell::EndEdit()
{
if (m_pEditWnd)
((CInPlaceEdit*)m_pEditWnd)->EndEdit();
}
void CGridCell::OnEndEdit()
{
m_bEditing = FALSE;
m_pEditWnd = NULL;
}
/////////////////////////////////////////////////////////////////////////////
// CGridDefaultCell
CGridDefaultCell::CGridDefaultCell()
{
#ifdef _WIN32_WCE
m_nFormat = DT_LEFT|DT_VCENTER|DT_SINGLELINE|DT_NOPREFIX;
#else
m_nFormat = DT_LEFT|DT_VCENTER|DT_SINGLELINE|DT_NOPREFIX | DT_END_ELLIPSIS;
#endif
m_crFgClr = CLR_DEFAULT;
m_crBkClr = CLR_DEFAULT;
m_Size = CSize(30,10);
m_dwStyle = 0;
#ifdef _WIN32_WCE
LOGFONT lf;
GetObject(GetStockObject(SYSTEM_FONT), sizeof(LOGFONT), &lf);
SetFont(&lf);
#else // not CE
NONCLIENTMETRICS ncm;
#if defined(_MSC_VER) && (_MSC_VER < 1300)
ncm.cbSize = sizeof(NONCLIENTMETRICS); // NONCLIENTMETRICS has an extra element after VC6
#else
// Check the operating system's version
OSVERSIONINFOEX osvi;
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
if( !GetVersionEx((OSVERSIONINFO *) &osvi))
{
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx ((OSVERSIONINFO *)&osvi);
}
if (osvi.dwMajorVersion > 5)
ncm.cbSize = sizeof(NONCLIENTMETRICS);
else
ncm.cbSize = sizeof(NONCLIENTMETRICS) - sizeof(ncm.iPaddedBorderWidth);
#endif
VERIFY(SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(NONCLIENTMETRICS), &ncm, 0));
SetFont(&(ncm.lfMessageFont));
#endif
}
CGridDefaultCell::~CGridDefaultCell()
{
m_Font.DeleteObject();
}
void CGridDefaultCell::SetFont(const LOGFONT* plf)
{
ASSERT(plf);
if (!plf) return;
m_Font.DeleteObject();
m_Font.CreateFontIndirect(plf);
CGridCell::SetFont(plf);
// Get the font size and hence the default cell size
CDC* pDC = CDC::FromHandle(::GetDC(NULL));
if (pDC)
{
CFont* pOldFont = pDC->SelectObject(&m_Font);
SetMargin(pDC->GetTextExtent(_T(" "), 1).cx);
m_Size = pDC->GetTextExtent(_T(" XXXXXXXXXXXX "), 14);
m_Size.cy = (m_Size.cy * 3) / 2;
pDC->SelectObject(pOldFont);
ReleaseDC(NULL, pDC->GetSafeHdc());
}
else
{
SetMargin(3);
m_Size = CSize(40,16);
}
}
LOGFONT* CGridDefaultCell::GetFont() const
{
ASSERT(m_plfFont); // This is the default - it CAN'T be NULL!
return m_plfFont;
}
CFont* CGridDefaultCell::GetFontObject() const
{
ASSERT(m_Font.GetSafeHandle());
return (CFont*) &m_Font;
}