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 <cmaunder@mail.com>
- // Copyright (c) 1998-2000. 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
- // <kenbertelson@hotmail.com>
- // 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;
- Reset();
- }
- CGridCell::~CGridCell()
- {
- delete m_plfFont;
- }
- /////////////////////////////////////////////////////////////////////////////
- // GridCell Attributes
- void CGridCell::operator=(const CGridCell& cell)
- {
- CGridCellBase::operator=( cell);
- }
- void CGridCell::Reset()
- {
- CGridCellBase::Reset();
- m_strText.Empty();
- m_nImage = -1;
- 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)
- {
- 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;
- ncm.cbSize = sizeof(NONCLIENTMETRICS);
- 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;
- }