Add support for horizontal & vertical alignment when doing truesize
sizing.
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@ -556,9 +556,20 @@ static HRESULT UXTHEME_DrawImageBackground(HTHEME hTheme, HDC hdc, int iPartId,
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GetThemeEnumValue(hTheme, iPartId, iStateId, TMT_SIZINGTYPE, &sizingtype);
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if(sizingtype == ST_TRUESIZE) {
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int valign = VA_CENTER, halign = HA_CENTER;
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get_image_part_size (hTheme, hdc, iPartId, iStateId, pRect, TS_DRAW, &drawSize);
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rcDst.left += (dstSize.x/2)-(drawSize.x/2);
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rcDst.top += (dstSize.y/2)-(drawSize.y/2);
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GetThemeEnumValue(hTheme, iPartId, iStateId, TMT_VALIGN, &valign);
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GetThemeEnumValue(hTheme, iPartId, iStateId, TMT_HALIGN, &halign);
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if (halign == HA_CENTER)
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rcDst.left += (dstSize.x/2)-(drawSize.x/2);
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else if (halign == HA_RIGHT)
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rcDst.left = rcDst.right - drawSize.x;
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if (valign == VA_CENTER)
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rcDst.top += (dstSize.y/2)-(drawSize.y/2);
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else if (valign == VA_BOTTOM)
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rcDst.top = rcDst.bottom - drawSize.y;
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rcDst.right = rcDst.left + drawSize.x;
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rcDst.bottom = rcDst.top + drawSize.y;
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if(!UXTHEME_StretchBlt(hdc, rcDst.left, rcDst.top, drawSize.x, drawSize.y,
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