bool CurseGUIPicture::SetAutoAlloc(bool a)
{
SCTriple fill;
fill.r = 0; fill.g = 0; fill.b = 0;
//free memory if auto-allocated
if (autoalloc && pict) {
free(pict);
pict = NULL;
}
//set new flag
autoalloc = a;
//allocate memory
if (a) {
pict = (SGUIPixel*)malloc(length);
if (!pict) {
autoalloc = false;
return false;
}
ColorFill(fill);
}
//All operations are completed successfully
return true;
}
BOOL __stdcall pvdDisplayPaint2(void *pContext, void* pDisplayContext, pvdInfoDisplayPaint2* pDisplayPaint)
{
_ASSERTE(pDisplayPaint->cbSize >= sizeof(pvdInfoDisplayPaint2));
_ASSERTE(pDisplayContext);
BOOL lbRc = FALSE;
WmfContext* p = (WmfContext*)pDisplayContext;
switch (pDisplayPaint->Operation)
{
case PVD_IDP_BEGIN:
{
//if (!BeginPaint(pDisplayPaint->hWnd, &p->ps)) {
if (!(p->ps.hdc = GetDC(pDisplayPaint->hWnd))) {
pDisplayPaint->nErrNumber = PWE_WIN32_ERROR;
gnLastWin32Error = GetLastError();
} else {
lbRc = TRUE;
}
} break;
case PVD_IDP_COMMIT:
{
//EndPaint(pDisplayPaint->hWnd, &p->ps);
ReleaseDC(pDisplayPaint->hWnd, p->ps.hdc);
lbRc = TRUE;
} break;
case PVD_IDP_COLORFILL:
{
ColorFill(p->ps.hdc, pDisplayPaint->DisplayRect, pDisplayPaint->nBackColor);
lbRc = TRUE;
} break;
case PVD_IDP_PAINT:
{
if (pDisplayPaint->DisplayRect.right == pDisplayPaint->DisplayRect.left
|| pDisplayPaint->DisplayRect.bottom == pDisplayPaint->DisplayRect.top
|| pDisplayPaint->ImageRect.right == pDisplayPaint->ImageRect.left
|| pDisplayPaint->ImageRect.bottom == pDisplayPaint->ImageRect.top
)
{
ColorFill(p->ps.hdc, pDisplayPaint->DisplayRect, pDisplayPaint->nBackColor);
lbRc = FALSE;
pDisplayPaint->nErrNumber = PWE_INVALID_RECT;
} else {
SIZE FullSize = p->PreferredSize;
POINT StartPoint = {0,0};
if (pDisplayPaint->ImageRect.left || pDisplayPaint->ImageRect.top
|| ((pDisplayPaint->DisplayRect.right - pDisplayPaint->DisplayRect.left) != FullSize.cx)
|| ((pDisplayPaint->DisplayRect.bottom - pDisplayPaint->DisplayRect.top) != FullSize.cy))
{
FullSize.cx = (pDisplayPaint->DisplayRect.right - pDisplayPaint->DisplayRect.left)
* p->PreferredSize.cx / (pDisplayPaint->ImageRect.right - pDisplayPaint->ImageRect.left);
FullSize.cy = (pDisplayPaint->DisplayRect.bottom - pDisplayPaint->DisplayRect.top)
* p->PreferredSize.cy / (pDisplayPaint->ImageRect.bottom - pDisplayPaint->ImageRect.top);
_ASSERTE(FullSize.cx && FullSize.cy);
StartPoint.x = pDisplayPaint->ImageRect.left * FullSize.cx / p->PreferredSize.cx;
StartPoint.y = pDisplayPaint->ImageRect.top * FullSize.cy / p->PreferredSize.cy;
}
if (FullSize.cx != p->CurrentSize.cx || FullSize.cy != p->CurrentSize.cy) {
if (!p->CreateComp(p->ps.hdc, FullSize.cx, FullSize.cy)) {
pDisplayPaint->nErrNumber = PWE_WIN32_ERROR;
gnLastWin32Error = GetLastError();
lbRc = FALSE;
} else {
RECT rcFill = {0,0,FullSize.cx,FullSize.cy};
ColorFill(p->hCompDC, rcFill, pDisplayPaint->nBackColor);
// To stop this function, an application can call the CancelDC function from another thread to terminate the operation. In this case, the function returns FALSE.
lbRc = PlayEnhMetaFile(p->hCompDC, p->h, &rcFill);
if (!lbRc) {
pDisplayPaint->nErrNumber = PWE_WIN32_ERROR;
gnLastWin32Error = GetLastError();
}
}
}
if (p->hCompDC) {
lbRc = BitBlt(p->ps.hdc, pDisplayPaint->DisplayRect.left, pDisplayPaint->DisplayRect.top,
pDisplayPaint->DisplayRect.right - pDisplayPaint->DisplayRect.left,
pDisplayPaint->DisplayRect.bottom - pDisplayPaint->DisplayRect.top,
p->hCompDC, StartPoint.x, StartPoint.y, SRCCOPY);
if (!lbRc) {
pDisplayPaint->nErrNumber = PWE_WIN32_ERROR;
gnLastWin32Error = GetLastError();
}
}
}
}
}
return lbRc;
}
