/*!
* This function should be called inside the parent window @c WM_NCCALCSIZE
* message handler to help eliminate flickering.
*
* @param bAfterDefault Flag that specifies wether the call is made before
* or after the default handler
* @param lpncsp Pointer to the @c NCCALCSIZE_PARAMS structure that is
* passed to the message handler
* @param lResult Reference to the result of the message handler.
* It contains the default handler result on input and the value to
* return from the window procedure on output.
*
* @remarks This function fixes the annoying flickering effect that is
* visible when resizing the top or left edges of the window
* (at least on a "left to right" Windows localized version).
*/
void CResizableLayout::HandleNcCalcSize(BOOL bAfterDefault, LPNCCALCSIZE_PARAMS lpncsp, LRESULT &lResult)
{
// prevent useless complication when size is not changing
// prevent recursion when resetting the window region (see below)
if ((lpncsp->lppos->flags & SWP_NOSIZE)
#if (_WIN32_WINNT >= 0x0501)
|| m_bNoRecursion
#endif
)
return;
if (!bAfterDefault)
{
// save a copy before default handler gets called
m_rectClientBefore = lpncsp->rgrc[2];
}
else // after default WM_NCCALCSIZE msg processing
{
if (lResult != 0)
{
// default handler already uses an advanced validation policy, give up
return;
}
// default calculated client rect
RECT &rectClientAfter = lpncsp->rgrc[0];
// intersection between old and new client area is to be preserved
// set source and destination rects to this intersection
RECT &rectPreserve = lpncsp->rgrc[1];
::IntersectRect(&rectPreserve, &rectClientAfter, &m_rectClientBefore);
lpncsp->rgrc[2] = rectPreserve;
lResult = WVR_VALIDRECTS;
// FIX: window region must be updated before the result of the
// WM_NCCALCSIZE message gets processed by the system,
// otherwise the old window region will clip the client
// area during the preservation process.
// This is especially evident on WinXP when the non-client
// area is rendered with Visual Styles enabled and the
// windows have a non rectangular region.
// NOTE: Implementers of skin systems that modify the window region
// should not rely on this fix and should handle non-client
// window messages themselves, to avoid flickering
#if (_WIN32_WINNT >= 0x0501)
if ((real_WIN32_WINNT >= 0x0501)
&& (real_ThemeSettings & STAP_ALLOW_NONCLIENT))
{
CWnd* pWnd = GetResizableWnd();
DWORD dwStyle = pWnd->GetStyle();
if ((dwStyle & (WS_CAPTION|WS_MAXIMIZE)) == WS_CAPTION)
{
m_bNoRecursion = TRUE;
pWnd->SetWindowRgn(NULL, FALSE);
m_bNoRecursion = FALSE;
}
}
#endif
}
}
LRESULT OnPaint( HWND hWnd )
{
CWnd* pWnd = CWnd::FromHandle(hWnd);
CPaintDC dc(pWnd);
CString Text;
CRect RC;
CFont Font;
CFont *pOldFont;
CBrush Brush;
CBrush *pOldBrush;
CPoint PT(2,2);
dc.SetBkMode( TRANSPARENT );
Font.CreateFont( 12, 0, 0, 0, FW_HEAVY, 0, 0, 0, ANSI_CHARSET, \
OUT_TT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, \
VARIABLE_PITCH | FF_SWISS, "MS Sans Serif" );
pOldFont = dc.SelectObject( &Font );
if( m_State == bsNormal)
{
if (m_Style==2)
{
CBitmap bmp;
bmp.LoadBitmap(IDB_BKBUTTON);
Brush.CreatePatternBrush(&bmp);
}
else
Brush.CreateSolidBrush( RGB( 200, 200, 200 ) );
dc.SetTextColor( RGB( 80, 80, 80) );
}
else if( m_State == bsDown )
{
Brush.CreateSolidBrush( RGB( 160, 160, 160 ) );
dc.SetTextColor( RGB( 50, 50, 250 ) );
}
else if( m_State == bsHot )
{
Brush.CreateSolidBrush( RGB( 100, 100, 180 ) );
dc.SetTextColor( RGB( 250, 250, 0 ) );
}
pOldBrush = dc.SelectObject( &Brush );
pWnd->GetClientRect( &RC );
dc.RoundRect( &RC, PT );
HRGN hRgn = CreateRectRgn( RC.left, RC.top, RC.right, RC.bottom );
pWnd->SetWindowRgn( hRgn, TRUE );
DeleteObject( hRgn );
pWnd->GetWindowText(Text );
dc.DrawText( Text, &RC, DT_CENTER | DT_VCENTER | DT_SINGLELINE );
dc.SelectObject( pOldFont );
dc.SelectObject( pOldBrush );
return TRUE;
}
void CScoreView::SetupRgn(CDC *pDC, //窗体的DC指针
CBitmap &cBitmap, //含有窗体形状的位图对象
// CSkinImage skinImage,
COLORREF TransColor) //透明色
{
CDC memDC;
//创建与传入DC兼容的临时DC
memDC.CreateCompatibleDC(pDC);
CBitmap *pOldMemBmp=NULL;
//将位图选入临时DC
pOldMemBmp=memDC.SelectObject(&cBitmap);
CRgn wndRgn;
//创建总的窗体区域，初始region为0
wndRgn.CreateRectRgn(0,0,0,0);
BITMAP bit;
cBitmap.GetBitmap (&bit);//取得位图参数，这里要用到位图的长和宽
int y;
for(y=0;y<=bit.bmHeight ;y++)
{
CRgn rgnTemp; //保存临时region
int iX = 0;
do
{
//跳过透明色找到下一个非透明色的点.
while (iX <= bit.bmWidth && memDC.GetPixel(iX, y) == TransColor)
iX++;
//记住这个起始点
int iLeftX = iX;
//寻找下个透明色的点
while (iX <= bit.bmWidth && memDC.GetPixel(iX, y) != TransColor)
++iX;
//创建一个包含起点与重点间高为1像素的临时“region”
rgnTemp.CreateRectRgn(iLeftX, y, iX, y+1);
//合并到主"region".
wndRgn.CombineRgn(&wndRgn, &rgnTemp, RGN_OR);
//删除临时"region",否则下次创建时和出错
rgnTemp.DeleteObject();
}while(iX <bit.bmWidth );
iX = 0;
}
if(pOldMemBmp)
memDC.SelectObject(pOldMemBmp);
//HRGN wndRgn=skinImage.CreateImageRegion(RGB(255,0,255));
CWnd * pWnd = pDC->GetWindow();
pWnd->SetWindowRgn(wndRgn,TRUE);
pWnd->SetForegroundWindow();
}
void CScoreView::SetupRgn(CDC *pDC,CSkinImage bImage,COLORREF TransColor)
{
//bImage.GetWidth()/5;
tagImageLoadInfo ImageIDB;
bImage.GetLoadInfo(ImageIDB);
CBitmap cBitmap;
cBitmap.LoadBitmap(ImageIDB.uResourceID);//这个BITMAP是5倍长的，所以会有问题死机。
CDC memDC;
//创建与传入DC兼容的临时DC
memDC.CreateCompatibleDC(pDC);
CBitmap *pOldMemBmp=NULL;
//将位图选入临时DC
pOldMemBmp=memDC.SelectObject(&cBitmap);
CRgn wndRgn;
//创建总的窗体区域，初始region为0
wndRgn.CreateRectRgn(0,0,0,0);
BITMAP bit;
cBitmap.GetBitmap (&bit);//取得位图参数，这里要用到位图的长和宽
int y;
for(y=0;y<=bit.bmHeight ;y++)
{
CRgn rgnTemp; //保存临时region
int iX = 0;
do
{
//跳过透明色找到下一个非透明色的点.
while (iX <= bit.bmWidth && memDC.GetPixel(iX, y) == TransColor)
iX++;
//记住这个起始点
int iLeftX = iX;
//寻找下个透明色的点
while (iX <= bit.bmWidth && memDC.GetPixel(iX, y) != TransColor)
++iX;
//创建一个包含起点与重点间高为1像素的临时“region”
rgnTemp.CreateRectRgn(iLeftX, y, iX, y+1);
//合并到主"region".
wndRgn.CombineRgn(&wndRgn, &rgnTemp, RGN_OR);
//删除临时"region",否则下次创建时和出错
rgnTemp.DeleteObject();
}while(iX <bit.bmWidth );
iX = 0;
}
if(pOldMemBmp)
memDC.SelectObject(pOldMemBmp);
CWnd * pWnd = pDC->GetWindow();
pWnd->SetWindowRgn(wndRgn,TRUE);
pWnd->SetForegroundWindow();
}
