// GridCellCheck.cpp : implementation file
//
// MFC Grid Control - Main grid cell class
//
// Provides the implementation for a combobox cell type of the
// grid control.
//
// Written by Chris Maunder <cmaunder@mail.com>
// Copyright (c) 1998-2002. All Rights Reserved.
//
// Parts of the code contained in this file are based on the original
// CInPlaceList from http://www.codeguru.com/listview
//
// 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 v2.22+
//
// History:
// 23 Jul 2001 - Complete rewrite
// 13 Mar 2004 - GetCellExtent and GetCheckPlacement fixed by Yogurt
// - Read-only now honoured - Yogurt
//
/////////////////////////////////////////////////////////////////////////////
#include "StdAfx.h"
#include "GridCell.h"
#include "GridCtrl.h"
#include "GridCellCheck.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
IMPLEMENT_DYNCREATE(CGridCellCheck, CGridCell)
CGridCellCheck::CGridCellCheck() : CGridCell()
{
m_bChecked = FALSE;
//m_Rect.IsRectNull();
}
CSize CGridCellCheck::GetCellExtent(CDC* pDC)
{
// Using SM_CXHSCROLL as a guide to the size of the checkbox
int nWidth = GetSystemMetrics(SM_CXHSCROLL) + 2*GetMargin();
CSize cellSize = CGridCell::GetCellExtent(pDC);
cellSize.cx += nWidth;
cellSize.cy = max (cellSize.cy, nWidth);
return cellSize;
}
// i/o: i=dims of cell rect; o=dims of text rect
BOOL CGridCellCheck::GetTextRect( LPRECT pRect)
{
BOOL bResult = CGridCell::GetTextRect(pRect);
if (bResult)
{
int nWidth = GetSystemMetrics(SM_CXHSCROLL) + 2*GetMargin();
pRect->left += nWidth;
if (pRect->left > pRect->right)
pRect->left = pRect->right;
}
return bResult;
}
// Override draw so that when the cell is selected, a drop arrow is shown in the RHS.
BOOL CGridCellCheck::Draw(CDC* pDC, int nRow, int nCol, CRect rect, BOOL bEraseBkgnd /*=TRUE*/)
{
BOOL bResult = CGridCell::Draw(pDC, nRow, nCol, rect, bEraseBkgnd);
#ifndef _WIN32_WCE
// Store the cell's dimensions for later
m_Rect = rect;
CRect CheckRect = GetCheckPlacement();
rect.left = CheckRect.right;
// enough room to draw?
// if (CheckRect.Width() < rect.Width() && CheckRect.Height() < rect.Height()) {
// Do the draw
pDC->DrawFrameControl(GetCheckPlacement(), DFC_BUTTON,
(m_bChecked)? DFCS_BUTTONCHECK | DFCS_CHECKED : DFCS_BUTTONCHECK);
// }
#endif
return bResult;
}
void CGridCellCheck::OnClick(CPoint PointCellRelative)
{
// PointCellRelative is relative to the topleft of the cell. Convert to client coords
PointCellRelative += m_Rect.TopLeft();
// Bail if cell is read-only
CCellID cell = GetGrid()->GetCellFromPt (PointCellRelative);
if (!GetGrid()->IsCellEditable (cell))
return;
// GetCheckPlacement returns the checkbox dimensions in client coords. Only check/
// uncheck if the user clicked in the box
if (GetCheckPlacement().PtInRect(PointCellRelative))
{
m_bChecked = !m_bChecked;
GetGrid()->InvalidateRect(m_Rect);
}
}
//////////////////////////////////////////////////////////////////////
// Operations
//////////////////////////////////////////////////////////////////////
BOOL CGridCellCheck::SetCheck(BOOL bChecked /*=TRUE*/)
{
BOOL bTemp = m_bChecked;
m_bChecked = bChecked;
if (!m_Rect.IsRectEmpty())
GetGrid()->InvalidateRect(m_Rect);
return bTemp;
}
BOOL CGridCellCheck::GetCheck()
{
return m_bChecked;
}
//////////////////////////////////////////////////////////////////////
// Protected implementation
//////////////////////////////////////////////////////////////////////
// Returns the dimensions and placement of the checkbox in client coords.
CRect CGridCellCheck::GetCheckPlacement()
{
int nWidth = GetSystemMetrics(SM_CXHSCROLL);
CRect place = m_Rect + CSize(GetMargin(), GetMargin());
place.right = place.left + nWidth;
place.bottom = place.top + nWidth;
/* for centering
int nDiff = (place.Width() - nWidth)/2;
if (nDiff > 0)
{
place.left += nDiff;
place.right = place.left + nWidth;
}
nDiff = (place.Height() - nWidth)/2;
if (nDiff > 0)
{
place.top += nDiff;
place.bottom = place.top + nWidth;
}
*/
if (m_Rect.Height() < nWidth + 2 * static_cast<int> (GetMargin()))
{
place.top = m_Rect.top + (m_Rect.Height() - nWidth) / 2;
place.bottom = place.top + nWidth;
}
return place;
}