www.pudn.com > TreePropSheetEx_Demo.zip > PropPageFrameDefault.cpp
/********************************************************************
*
* Copyright (c) 2002 Sven Wiegand
*
* You can use this and modify this in any way you want,
* BUT LEAVE THIS HEADER INTACT.
*
* Redistribution is appreciated.
*
* $Workfile:$
* $Revision: 1.4 $
* $Modtime:$
* $Author: ytkaczyk $
*
* Revision History:
* $History:$
*
*********************************************************************/
#include "stdafx.h"
#include "PropPageFrameDefault.h"
namespace TreePropSheet
{
//uncomment the following line, if you don't have installed the
//new platform SDK
#define XPSUPPORT
#ifdef XPSUPPORT
#include
#include
#endif
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
//-------------------------------------------------------------------
// class CThemeLib
//-------------------------------------------------------------------
#define THEMEAPITYPE(f) typedef HRESULT (__stdcall *_##f)
#define THEMEAPITYPE_(t, f) typedef t (__stdcall *_##f)
#define THEMEAPIPTR(f) _##f m_p##f
#ifdef XPSUPPORT
#define THEMECALL(f) return (*m_p##f)
#define GETTHEMECALL(f) m_p##f = (_##f)GetProcAddress(m_hThemeLib, #f)
#else
void ThemeDummy(...) {ASSERT(FALSE);}
#define HTHEME void*
#define TABP_PANE 0
#define THEMECALL(f) return 0; ThemeDummy
#define GETTHEMECALL(f) m_p##f = NULL
#endif
/**
Helper class for loading the uxtheme DLL and providing their
functions.
One global object of this class exists.
@author Sven Wiegand
*/
class CThemeLib
{
// construction/destruction
public:
CThemeLib();
~CThemeLib();
// operations
public:
/**
Returns TRUE if the call wrappers are available, FALSE otherwise.
*/
BOOL IsAvailable() const;
// call wrappers
public:
BOOL IsThemeActive()
{THEMECALL(IsThemeActive)();}
HTHEME OpenThemeData(HWND hwnd, LPCWSTR pszClassList)
{THEMECALL(OpenThemeData)(hwnd, pszClassList);}
HRESULT CloseThemeData(HTHEME hTheme)
{THEMECALL(CloseThemeData)(hTheme);}
HRESULT GetThemeBackgroundContentRect(HTHEME hTheme, OPTIONAL HDC hdc, int iPartId, int iStateId, const RECT *pBoundingRect, OUT RECT *pContentRect)
{THEMECALL(GetThemeBackgroundContentRect)(hTheme, hdc, iPartId, iStateId, pBoundingRect, pContentRect);}
HRESULT DrawThemeBackground(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, const RECT *pRect, OPTIONAL const RECT *pClipRect)
{THEMECALL(DrawThemeBackground)(hTheme, hdc, iPartId, iStateId, pRect, pClipRect);}
// function pointers
private:
#ifdef XPSUPPORT
THEMEAPITYPE_(BOOL, IsThemeActive)();
THEMEAPIPTR(IsThemeActive);
THEMEAPITYPE_(HTHEME, OpenThemeData)(HWND hwnd, LPCWSTR pszClassList);
THEMEAPIPTR(OpenThemeData);
THEMEAPITYPE(CloseThemeData)(HTHEME hTheme);
THEMEAPIPTR(CloseThemeData);
THEMEAPITYPE(GetThemeBackgroundContentRect)(HTHEME hTheme, OPTIONAL HDC hdc, int iPartId, int iStateId, const RECT *pBoundingRect, OUT RECT *pContentRect);
THEMEAPIPTR(GetThemeBackgroundContentRect);
THEMEAPITYPE(DrawThemeBackground)(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, const RECT *pRect, OPTIONAL const RECT *pClipRect);
THEMEAPIPTR(DrawThemeBackground);
#endif
// properties
private:
/** instance handle to the library or NULL. */
HINSTANCE m_hThemeLib;
};
/**
One and only instance of CThemeLib.
*/
static CThemeLib g_ThemeLib;
CThemeLib::CThemeLib()
: m_hThemeLib(NULL)
{
#ifdef XPSUPPORT
m_hThemeLib = LoadLibrary(_T("uxtheme.dll"));
if (!m_hThemeLib)
return;
GETTHEMECALL(IsThemeActive);
GETTHEMECALL(OpenThemeData);
GETTHEMECALL(CloseThemeData);
GETTHEMECALL(GetThemeBackgroundContentRect);
GETTHEMECALL(DrawThemeBackground);
#endif
}
CThemeLib::~CThemeLib()
{
if (m_hThemeLib)
FreeLibrary(m_hThemeLib);
}
BOOL CThemeLib::IsAvailable() const
{
return m_hThemeLib!=NULL;
}
//-------------------------------------------------------------------
// class CPropPageFrameDefault
//-------------------------------------------------------------------
BEGIN_MESSAGE_MAP(CPropPageFrameDefault, CWnd)
//{{AFX_MSG_MAP(CPropPageFrameDefault)
ON_WM_PAINT()
ON_WM_ERASEBKGND()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
CPropPageFrameDefault::CPropPageFrameDefault()
{
}
CPropPageFrameDefault::~CPropPageFrameDefault()
{
if (m_Images.GetSafeHandle())
m_Images.DeleteImageList();
}
/////////////////////////////////////////////////////////////////////
// Overridings
BOOL CPropPageFrameDefault::Create(DWORD dwWindowStyle, const RECT &rect, CWnd *pwndParent, UINT nID)
{
return CWnd::Create(
AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW, AfxGetApp()->LoadStandardCursor(IDC_ARROW), GetSysColorBrush(COLOR_3DFACE)),
_T("Page Frame"),
dwWindowStyle, rect, pwndParent, nID);
}
CWnd* CPropPageFrameDefault::GetWnd()
{
return static_cast(this);
}
void CPropPageFrameDefault::SetCaption(LPCTSTR lpszCaption, HICON hIcon /*= NULL*/)
{
CPropPageFrame::SetCaption(lpszCaption, hIcon);
// build image list
if (m_Images.GetSafeHandle())
m_Images.DeleteImageList();
if (hIcon)
{
ICONINFO ii;
if (!GetIconInfo(hIcon, &ii))
return;
CBitmap bmMask;
bmMask.Attach(ii.hbmMask);
if (ii.hbmColor) DeleteObject(ii.hbmColor);
BITMAP bm;
bmMask.GetBitmap(&bm);
if (!m_Images.Create(bm.bmWidth, bm.bmHeight, ILC_COLOR32|ILC_MASK, 0, 1))
return;
if (m_Images.Add(hIcon) == -1)
m_Images.DeleteImageList();
}
}
CRect CPropPageFrameDefault::CalcMsgArea()
{
CRect rect;
GetClientRect(rect);
if (g_ThemeLib.IsAvailable() && g_ThemeLib.IsThemeActive())
{
HTHEME hTheme = g_ThemeLib.OpenThemeData(m_hWnd, L"Tab");
if (hTheme)
{
CRect rectContent;
CDC *pDc = GetDC();
g_ThemeLib.GetThemeBackgroundContentRect(hTheme, pDc->m_hDC, TABP_PANE, 0, rect, rectContent);
ReleaseDC(pDc);
g_ThemeLib.CloseThemeData(hTheme);
if (GetShowCaption())
rectContent.top = rect.top+GetCaptionHeight()+1;
rect = rectContent;
}
}
else if (GetShowCaption())
rect.top+= GetCaptionHeight()+1;
return rect;
}
CRect CPropPageFrameDefault::CalcCaptionArea()
{
CRect rect;
GetClientRect(rect);
if (g_ThemeLib.IsAvailable() && g_ThemeLib.IsThemeActive())
{
HTHEME hTheme = g_ThemeLib.OpenThemeData(m_hWnd, L"Tab");
if (hTheme)
{
CRect rectContent;
CDC *pDc = GetDC();
g_ThemeLib.GetThemeBackgroundContentRect(hTheme, pDc->m_hDC, TABP_PANE, 0, rect, rectContent);
ReleaseDC(pDc);
g_ThemeLib.CloseThemeData(hTheme);
if (GetShowCaption())
rectContent.bottom = rect.top+GetCaptionHeight();
else
rectContent.bottom = rectContent.top;
rect = rectContent;
}
}
else
{
if (GetShowCaption())
rect.bottom = rect.top+GetCaptionHeight();
else
rect.bottom = rect.top;
}
return rect;
}
void CPropPageFrameDefault::DrawCaption(CDC *pDc, CRect rect, LPCTSTR lpszCaption, HICON hIcon)
{
COLORREF clrLeft = GetSysColor(COLOR_INACTIVECAPTION);
COLORREF clrRight = pDc->GetPixel(rect.right-1, rect.top);
FillGradientRectH(pDc, rect, clrLeft, clrRight);
// draw icon
if (hIcon && m_Images.GetSafeHandle() && m_Images.GetImageCount() == 1)
{
IMAGEINFO ii;
m_Images.GetImageInfo(0, &ii);
CPoint pt(3, rect.CenterPoint().y - (ii.rcImage.bottom-ii.rcImage.top)/2);
m_Images.Draw(pDc, 0, pt, ILD_TRANSPARENT);
rect.left+= (ii.rcImage.right-ii.rcImage.left) + 3;
}
// draw text
rect.left+= 2;
COLORREF clrPrev = pDc->SetTextColor(GetSysColor(COLOR_CAPTIONTEXT));
int nBkStyle = pDc->SetBkMode(TRANSPARENT);
CFont *pFont = (CFont*)pDc->SelectStockObject(SYSTEM_FONT);
pDc->DrawText(lpszCaption, rect, DT_LEFT|DT_VCENTER|DT_SINGLELINE|DT_END_ELLIPSIS);
pDc->SetTextColor(clrPrev);
pDc->SetBkMode(nBkStyle);
pDc->SelectObject(pFont);
}
/////////////////////////////////////////////////////////////////////
// Implementation helpers
void CPropPageFrameDefault::FillGradientRectH(CDC *pDc, const RECT &rect, COLORREF clrLeft, COLORREF clrRight)
{
// pre calculation
int nSteps = rect.right-rect.left;
int nRRange = GetRValue(clrRight)-GetRValue(clrLeft);
int nGRange = GetGValue(clrRight)-GetGValue(clrLeft);
int nBRange = GetBValue(clrRight)-GetBValue(clrLeft);
double dRStep = (double)nRRange/(double)nSteps;
double dGStep = (double)nGRange/(double)nSteps;
double dBStep = (double)nBRange/(double)nSteps;
double dR = (double)GetRValue(clrLeft);
double dG = (double)GetGValue(clrLeft);
double dB = (double)GetBValue(clrLeft);
CPen *pPrevPen = NULL;
for (int x = rect.left; x <= rect.right; ++x)
{
CPen Pen(PS_SOLID, 1, RGB((BYTE)dR, (BYTE)dG, (BYTE)dB));
pPrevPen = pDc->SelectObject(&Pen);
pDc->MoveTo(x, rect.top);
pDc->LineTo(x, rect.bottom);
pDc->SelectObject(pPrevPen);
dR+= dRStep;
dG+= dGStep;
dB+= dBStep;
}
}
/////////////////////////////////////////////////////////////////////
// message handlers
void CPropPageFrameDefault::OnPaint()
{
CPaintDC dc(this);
Draw(&dc);
}
BOOL CPropPageFrameDefault::OnEraseBkgnd(CDC* pDC)
{
if (g_ThemeLib.IsAvailable() && g_ThemeLib.IsThemeActive())
{
HTHEME hTheme = g_ThemeLib.OpenThemeData(m_hWnd, L"Tab");
if (hTheme)
{
CRect rect;
GetClientRect(rect);
g_ThemeLib.DrawThemeBackground(hTheme, pDC->m_hDC, TABP_PANE, 0, rect, NULL);
g_ThemeLib.CloseThemeData(hTheme);
}
return TRUE;
}
else
{
return CWnd::OnEraseBkgnd(pDC);
}
}
} //namespace TreePropSheet