www.pudn.com > tetris.zip > BITMAPPROPSHEET.CPP

///////////////////////////////////////////////////////////////////////////// 
// Copyright (C) 1998 by Jörg König 
// All rights reserved 
// 
// This file is part of the completely free tetris clone "CGTetris". 
// 
// This is free software. 
// You may redistribute it by any means providing it is not sold for profit 
// without the authors written consent. 
// 
// No warrantee of any kind, expressed or implied, is included with this 
// software; use at your own risk, responsibility for damages (if any) to 
// anyone resulting from the use of this software rests entirely with the 
// user. 
// 
// Send bug reports, bug fixes, enhancements, requests, flames, etc., and 
// I'll try to keep a version up to date.  I can be reached as follows: 
//    J.Koenig@adg.de                 (company site) 
//    Joerg.Koenig@rhein-neckar.de    (private site) 
///////////////////////////////////////////////////////////////////////////// 
 
 
// BitmapPropSheet.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "tetris.h" 
#include "BitmapPropSheet.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CBitmapPropSheet 
 
IMPLEMENT_DYNAMIC(CBitmapPropSheet, CPropertySheet) 
 
CBitmapPropSheet::CBitmapPropSheet(UINT nIDCaption, CWnd* pParentWnd, UINT iSelectPage) 
	:CPropertySheet(nIDCaption, pParentWnd, iSelectPage) 
{ 
	CommonConstruct(); 
} 
 
CBitmapPropSheet::CBitmapPropSheet(LPCTSTR pszCaption, CWnd* pParentWnd, UINT iSelectPage) 
	:CPropertySheet(pszCaption, pParentWnd, iSelectPage) 
{ 
	CommonConstruct(); 
} 
 
CBitmapPropSheet::~CBitmapPropSheet() 
{ 
} 
 
 
void CBitmapPropSheet::CommonConstruct() 
{ 
	VERIFY(m_bmpBackground.LoadBitmap(IDB_Background)); 
	VERIFY(m_HollowBrush.CreateStockObject(HOLLOW_BRUSH)); 
} 
 
BEGIN_MESSAGE_MAP(CBitmapPropSheet, CPropertySheet) 
	//{{AFX_MSG_MAP(CBitmapPropSheet) 
	ON_WM_ERASEBKGND() 
	ON_WM_QUERYNEWPALETTE() 
	ON_WM_PALETTECHANGED() 
	ON_WM_CTLCOLOR() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CBitmapPropSheet message handlers 
 
BOOL CBitmapPropSheet::OnEraseBkgnd(CDC* pDC)  
{ 
	if(m_bmpBackground.GetPixelPtr() != 0) 
		m_bmpBackground.DrawDIB(pDC); 
	else 
		// no bitmap set. behave like a normal property sheet 
		return CPropertySheet::OnEraseBkgnd(pDC); 
 
	return TRUE; 
} 
 
BOOL CBitmapPropSheet::OnQueryNewPalette()  
{ 
	CPalette * pPal = m_bmpBackground.GetPalette(); 
	if( pPal != 0 && GetSafeHwnd() != 0 ) { 
		CClientDC dc(this); 
		CPalette * pOldPalette = dc.SelectPalette(pPal, FALSE); 
		UINT nChanged = dc.RealizePalette(); 
		dc.SelectPalette(pOldPalette, TRUE); 
 
		if (nChanged == 0) 
			return FALSE; 
 
		Invalidate(); 
		return TRUE; 
	} 
	return CPropertySheet::OnQueryNewPalette(); 
} 
 
void CBitmapPropSheet::OnPaletteChanged(CWnd* pFocusWnd)  
{ 
	CPalette * pPal = m_bmpBackground.GetPalette(); 
	if( pPal != 0 && GetSafeHwnd() != 0 && pFocusWnd != this && ! IsChild(pFocusWnd) ) { 
		CClientDC dc(this); 
		CPalette * pOldPalette = dc.SelectPalette(pPal, TRUE); 
		UINT nChanged = dc.RealizePalette(); 
		dc.SelectPalette(pOldPalette, TRUE); 
 
		if( nChanged ) 
			Invalidate(); 
	} else 
		CPropertySheet::OnPaletteChanged(pFocusWnd); 
} 
 
HBRUSH CBitmapPropSheet::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)  
{ 
	if(m_bmpBackground.GetPixelPtr() != 0) { 
		switch(nCtlColor) { 
			case CTLCOLOR_STATIC: 
			case CTLCOLOR_BTN: 
				// let static controls shine through 
				pDC->SetBkMode(TRANSPARENT); 
				return HBRUSH(m_HollowBrush); 
 
			default: 
				break; 
		} 
	} 
	 
	// if we reach that line, we haven't set a brush so far 
	return CPropertySheet::OnCtlColor(pDC, pWnd, nCtlColor); 
}