visualstylesxp.cpp

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/////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2001-2002 by David Yuheng Zhao
//
// Distribute and change freely, except: don't remove my name from the source 
//
// No warrantee of any kind, express 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.
//
// Partly based on the _ThemeHelper struct in MFC7.0 source code (winctrl3.cpp), 
// and the difference is that this implementation wraps the full set of 
// visual style APIs from the platform SDK August 2001
//
// If you have any questions, I can be reached as follows:
//	[e-mail]
//
//
// How to use:
// Instead of calling the API directly, 
//    OpenThemeData(...);
// use the global variable
//    g_xpStyle.OpenThemeData(...);
//
/////////////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "VisualStylesXP.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif


CVisualStylesXP g_xpStyle;

HMODULE CVisualStylesXP::m_hThemeDll = NULL;

CVisualStylesXP::CVisualStylesXP(void)
{
	m_hThemeDll = LoadLibrary(_T("UxTheme.dll"));
}

CVisualStylesXP::~CVisualStylesXP(void)
{
	if (m_hThemeDll != NULL)
		VERIFY( FreeLibrary(m_hThemeDll) );
	m_hThemeDll = NULL;
}

void* CVisualStylesXP::GetProc(LPCSTR szProc, void* pfnFail)
{
	void* pRet = pfnFail;
	if (m_hThemeDll != NULL)
		pRet = GetProcAddress(m_hThemeDll, szProc);
	return pRet;
}

HTHEME CVisualStylesXP::OpenThemeData(HWND hwnd, LPCWSTR pszClassList)
{
	static PFNOPENTHEMEDATA pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNOPENTHEMEDATA)GetProc("OpenThemeData", (void*)OpenThemeDataFail);
	return (*pfn)(hwnd, pszClassList);
}

HRESULT CVisualStylesXP::CloseThemeData(HTHEME hTheme)
{
	static PFNCLOSETHEMEDATA pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNCLOSETHEMEDATA)GetProc("CloseThemeData", (void*)CloseThemeDataFail);
	return (*pfn)(hTheme);
}

HRESULT CVisualStylesXP::DrawThemeBackground(HTHEME hTheme, HDC hdc, 
											 int iPartId, int iStateId, const RECT *pRect, const RECT *pClipRect)
{
	static PFNDRAWTHEMEBACKGROUND pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNDRAWTHEMEBACKGROUND)GetProc("DrawThemeBackground", (void*)DrawThemeBackgroundFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, pRect, pClipRect);
}

HRESULT CVisualStylesXP::DrawThemeText(HTHEME hTheme, HDC hdc, int iPartId, 
									   int iStateId, LPCWSTR pszText, int iCharCount, DWORD dwTextFlags, 
									   DWORD dwTextFlags2, const RECT *pRect)
{
	static PFNDRAWTHEMETEXT pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNDRAWTHEMETEXT)GetProc("DrawThemeText", (void*)DrawThemeTextFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, pszText, iCharCount, dwTextFlags, dwTextFlags2, pRect);
}
HRESULT CVisualStylesXP::GetThemeBackgroundContentRect(HTHEME hTheme, HDC hdc, 
													   int iPartId, int iStateId, const RECT *pBoundingRect, 
													   RECT *pContentRect)
{
	static PFNGETTHEMEBACKGROUNDCONTENTRECT pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNGETTHEMEBACKGROUNDCONTENTRECT)GetProc("GetThemeBackgroundContentRect", (void*)GetThemeBackgroundContentRectFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, pBoundingRect, pContentRect);
}

HRESULT CVisualStylesXP::GetThemeBackgroundExtent(HTHEME hTheme, HDC hdc,
												  int iPartId, int iStateId, const RECT *pContentRect, 
												  RECT *pExtentRect)
{
	static PFNGETTHEMEBACKGROUNDEXTENT pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNGETTHEMEBACKGROUNDEXTENT)GetProc("GetThemeBackgroundExtent", (void*)GetThemeBackgroundExtentFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, pContentRect, pExtentRect);
}

HRESULT CVisualStylesXP::GetThemePartSize(HTHEME hTheme, HDC hdc, 
										  int iPartId, int iStateId, RECT * pRect, enum THEMESIZE eSize, SIZE *psz)
{
	static PFNGETTHEMEPARTSIZE pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNGETTHEMEPARTSIZE)GetProc("GetThemePartSize", (void*)GetThemePartSizeFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, pRect, eSize, psz);
}

HRESULT CVisualStylesXP::GetThemeTextExtent(HTHEME hTheme, HDC hdc, 
											int iPartId, int iStateId, LPCWSTR pszText, int iCharCount, 
											DWORD dwTextFlags, const RECT *pBoundingRect, RECT *pExtentRect)
{
	static PFNGETTHEMETEXTEXTENT pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNGETTHEMETEXTEXTENT)GetProc("GetThemeTextExtent", (void*)GetThemeTextExtentFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, pszText, iCharCount, dwTextFlags, pBoundingRect, pExtentRect);
}

HRESULT CVisualStylesXP::GetThemeTextMetrics(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, TEXTMETRIC* ptm)
{
	static PFNGETTHEMETEXTMETRICS pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNGETTHEMETEXTMETRICS)GetProc("GetThemeTextMetrics", (void*)GetThemeTextMetricsFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, ptm);
}

HRESULT CVisualStylesXP::GetThemeBackgroundRegion(HTHEME hTheme, HDC hdc, 
												  int iPartId, int iStateId, const RECT *pRect, HRGN *pRegion)
{
	static PFNGETTHEMEBACKGROUNDREGION pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNGETTHEMEBACKGROUNDREGION)GetProc("GetThemeBackgroundRegion", (void*)GetThemeBackgroundRegionFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, pRect, pRegion);
}

HRESULT CVisualStylesXP::HitTestThemeBackground(HTHEME hTheme, HDC hdc, int iPartId, 
												int iStateId, DWORD dwOptions, const RECT *pRect, HRGN hrgn, 
												POINT ptTest, WORD *pwHitTestCode)
{
	static PFNHITTESTTHEMEBACKGROUND pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNHITTESTTHEMEBACKGROUND)GetProc("HitTestThemeBackground", (void*)HitTestThemeBackgroundFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, dwOptions, pRect, hrgn, ptTest, pwHitTestCode);
}

HRESULT CVisualStylesXP::DrawThemeEdge(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, 
									   const RECT *pDestRect, UINT uEdge, UINT uFlags, RECT *pContentRect)
{
	static PFNDRAWTHEMEEDGE pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNDRAWTHEMEEDGE)GetProc("DrawThemeEdge", (void*)DrawThemeEdgeFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, pDestRect, uEdge, uFlags, pContentRect);
}

HRESULT CVisualStylesXP::DrawThemeIcon(HTHEME hTheme, HDC hdc, int iPartId, 
									   int iStateId, const RECT *pRect, HIMAGELIST himl, int iImageIndex)
{
	static PFNDRAWTHEMEICON pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNDRAWTHEMEICON)GetProc("DrawThemeIcon", (void*)DrawThemeIconFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, pRect, himl, iImageIndex);
}

BOOL CVisualStylesXP::IsThemePartDefined(HTHEME hTheme, int iPartId, int iStateId)
{
	static PFNISTHEMEPARTDEFINED pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNISTHEMEPARTDEFINED)GetProc("IsThemePartDefined", (void*)IsThemePartDefinedFail);
	return (*pfn)(hTheme, iPartId, iStateId);
}

BOOL CVisualStylesXP::IsThemeBackgroundPartiallyTransparent(HTHEME hTheme, int iPartId, int iStateId)
{
	static PFNISTHEMEBACKGROUNDPARTIALLYTRANSPARENT pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNISTHEMEBACKGROUNDPARTIALLYTRANSPARENT)GetProc("IsThemeBackgroundPartiallyTransparent", (void*)IsThemeBackgroundPartiallyTransparentFail);
	return (*pfn)(hTheme, iPartId, iStateId);
}

HRESULT CVisualStylesXP::GetThemeColor(HTHEME hTheme, int iPartId, int iStateId, int iPropId, COLORREF *pColor)
{
	static PFNGETTHEMECOLOR pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNGETTHEMECOLOR)GetProc("GetThemeColor", (void*)GetThemeColorFail);
	return (*pfn)(hTheme, iPartId, iStateId, iPropId, pColor);
}

HRESULT CVisualStylesXP::GetThemeMetric(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, int iPropId, int *piVal)
{
	static PFNGETTHEMEMETRIC pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNGETTHEMEMETRIC)GetProc("GetThemeMetric", (void*)GetThemeMetricFail);
	return (*pfn)(hTheme, hdc, iPartId, iStateId, iPropId, piVal);
}

HRESULT CVisualStylesXP::GetThemeString(HTHEME hTheme, int iPartId, int iStateId, int iPropId, 
										LPWSTR pszBuff, int cchMaxBuffChars)
{
	static PFNGETTHEMESTRING pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNGETTHEMESTRING)GetProc("GetThemeString", (void*)GetThemeStringFail);
	return (*pfn)(hTheme, iPartId, iStateId, iPropId, pszBuff, cchMaxBuffChars);
}

HRESULT CVisualStylesXP::GetThemeBool(HTHEME hTheme, int iPartId, int iStateId, int iPropId, BOOL *pfVal)
{
	static PFNGETTHEMEBOOL pfn = NULL;
	if (pfn == NULL)
		pfn = (PFNGETTHEMEBOOL)GetProc("GetThemeBool", (void*)GetThemeBoolFail);
	return (*pfn)(hTheme, iPartId, iStateId, iPropId, pfVal);
}

HRESULT CVisualStylesXP::GetThemeInt(HTHEME hTheme, int iPartId, int iStateId, int iPropId, int *piVal)
{