uxtheme: Resize source image if destination smaller than margins.
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582b54329d
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@ -663,9 +663,9 @@ static HRESULT UXTHEME_DrawImageBackground(HTHEME hTheme, HDC hdc, int iPartId,
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const DTBGOPTS *pOptions)
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{
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HRESULT hr = S_OK;
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HBITMAP bmpSrc;
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HBITMAP bmpSrc, bmpSrcResized = NULL;
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HGDIOBJ oldSrc;
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HDC hdcSrc;
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HDC hdcSrc, hdcOrigSrc = NULL;
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RECT rcSrc;
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RECT rcDst;
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POINT dstSize;
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@ -729,6 +729,34 @@ static HRESULT UXTHEME_DrawImageBackground(HTHEME hTheme, HDC hdc, int iPartId,
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GetThemeMargins(hTheme, hdc, iPartId, iStateId, TMT_SIZINGMARGINS, NULL, &sm);
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/* Resize source image if destination smaller than margins */
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if (sm.cyTopHeight + sm.cyBottomHeight > dstSize.y || sm.cxLeftWidth + sm.cxRightWidth > dstSize.x) {
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if (sm.cyTopHeight + sm.cyBottomHeight > dstSize.y) {
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sm.cyTopHeight = MulDiv(sm.cyTopHeight, dstSize.y, srcSize.y);
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sm.cyBottomHeight = dstSize.y - sm.cyTopHeight;
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srcSize.y = dstSize.y;
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}
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if (sm.cxLeftWidth + sm.cxRightWidth > dstSize.x) {
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sm.cxLeftWidth = MulDiv(sm.cxLeftWidth, dstSize.x, srcSize.x);
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sm.cxRightWidth = dstSize.x - sm.cxLeftWidth;
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srcSize.x = dstSize.x;
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}
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hdcOrigSrc = hdcSrc;
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hdcSrc = CreateCompatibleDC(NULL);
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bmpSrcResized = CreateBitmap(srcSize.x, srcSize.y, 1, 32, NULL);
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SelectObject(hdcSrc, bmpSrcResized);
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UXTHEME_StretchBlt(hdcSrc, 0, 0, srcSize.x, srcSize.y, hdcOrigSrc, rcSrc.left, rcSrc.top,
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rcSrc.right - rcSrc.left, rcSrc.bottom - rcSrc.top, transparent, transparentcolor);
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rcSrc.left = 0;
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rcSrc.top = 0;
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rcSrc.right = srcSize.x;
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rcSrc.bottom = srcSize.y;
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}
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hdcDst = hdc;
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OffsetViewportOrgEx(hdcDst, rcDst.left, rcDst.top, &org);
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@ -833,6 +861,8 @@ draw_error:
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}
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SelectObject(hdcSrc, oldSrc);
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DeleteDC(hdcSrc);
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if (bmpSrcResized) DeleteObject(bmpSrcResized);
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if (hdcOrigSrc) DeleteDC(hdcOrigSrc);
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CopyRect(pRect, &rcDst);
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return hr;
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}
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