// Draw part of the DIB on a DC.
BOOL PLWinBmpEx::DrawExtract( HDC dc, POINT pntDest, RECT rcSrc )
{
// Compute destination rectangle
RECT rcDst;
rcDst.left = pntDest.x;
rcDst.top = pntDest.y;
rcDst.right = pntDest.x + abs(rcSrc.right - rcSrc.left);
rcDst.bottom = pntDest.y + abs(rcSrc.bottom - rcSrc.top );
return DrawEx( dc, &rcDst, &rcSrc );
}
// Draw DIB on DC.
void PLWinBmpEx::Draw( HDC dc, int x, int y, DWORD )
{
// Compute destination rectangle
RECT rcDst;
rcDst.left = x;
rcDst.top = y;
rcDst.right = x + GetWidth();
rcDst.bottom = y + GetHeight();
(void) DrawEx( dc, &rcDst );
}
// Draws the bitmap on the given device context.
// Scales the bitmap so w is the width and h the height.
void PLWinBmpEx::StretchDraw( HDC hDC, int x, int y, int w, int h, DWORD )
{
// Compute rectangles
RECT rcSrc, rcDst;
rcSrc.left = 0;
rcSrc.top = 0;
rcSrc.right = GetWidth();
rcSrc.bottom = GetHeight();
rcDst.left = x;
rcDst.top = y;
rcDst.right = x + w;
rcDst.bottom = y + h;
(void) DrawEx( hDC, &rcDst, &rcSrc );
}
// Play with the elastic bitmap...
void PLWinBmpEx::StretchDraw( HDC dc, int x, int y, double Factor, DWORD )
{
// Compute rectangles
RECT rcSrc, rcDst;
rcSrc.left = 0;
rcSrc.top = 0;
rcSrc.right = GetWidth();
rcSrc.bottom = GetHeight();
rcDst.left = x;
rcDst.top = y;
rcDst.right = x + int(Factor * GetWidth() );
rcDst.bottom = y + int(Factor * GetHeight());
(void) DrawEx( dc, &rcDst, &rcSrc );
}
BOOL CDirectControl::MouseEvent(UINT msg, int nX,int nY)
{
BOOL bRet=FALSE;
if (msg==WM_MOUSELEAVE)
{
if (Down || Over)
{
Over=FALSE;
Down=FALSE;
DrawEx();
}
return bRet;
}
if (nX>=x && nY>=y)
{
if (nX<=nHeight+x && nY<=nHeight+y)
{
bRet=TRUE;
if(!Over && msg==WM_MOUSEMOVE){
Over=TRUE;
DrawEx();
}else if(!Down && msg==WM_LBUTTONDOWN){
Over=TRUE;
Down=TRUE;
DrawEx();
}else if(Down && msg==WM_LBUTTONUP){
Over=TRUE;
Down=FALSE;
DrawEx();
OnClick();
}
return bRet;
}
}
if(Down && msg==WM_LBUTTONUP){
Over=FALSE;
Down=FALSE;
DrawEx();
return bRet;
}
if(!Down && Over && msg==WM_MOUSEMOVE){
Over=FALSE;
DrawEx();
}
return bRet;
}
