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