gdiplus: Don't require an HDC for the convert_unit function.
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e2b4d4e713
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@ -314,18 +314,18 @@ GpStatus hresult_to_status(HRESULT res)
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}
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/* converts a given unit to its value in pixels */
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REAL convert_unit(HDC hdc, GpUnit unit)
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REAL convert_unit(REAL logpixels, GpUnit unit)
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{
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switch(unit)
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{
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case UnitInch:
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return (REAL) GetDeviceCaps(hdc, LOGPIXELSX);
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return logpixels;
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case UnitPoint:
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return ((REAL)GetDeviceCaps(hdc, LOGPIXELSX)) / 72.0;
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return logpixels / 72.0;
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case UnitDocument:
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return ((REAL)GetDeviceCaps(hdc, LOGPIXELSX)) / 300.0;
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return logpixels / 300.0;
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case UnitMillimeter:
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return ((REAL)GetDeviceCaps(hdc, LOGPIXELSX)) / 25.4;
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return logpixels / 25.4;
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case UnitWorld:
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ERR("cannot convert UnitWorld\n");
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return 0.0;
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@ -47,7 +47,7 @@ extern INT arc2polybezier(GpPointF * points, REAL x1, REAL y1, REAL x2, REAL y2,
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REAL startAngle, REAL sweepAngle);
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extern REAL gdiplus_atan2(REAL dy, REAL dx);
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extern GpStatus hresult_to_status(HRESULT res);
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extern REAL convert_unit(HDC hdc, GpUnit unit);
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extern REAL convert_unit(REAL logpixels, GpUnit unit);
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extern void calc_curve_bezier(CONST GpPointF *pts, REAL tension, REAL *x1,
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REAL *y1, REAL *x2, REAL *y2);
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@ -84,6 +84,12 @@ static BYTE convert_path_point_type(BYTE type)
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return ret;
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}
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static REAL graphics_res(GpGraphics *graphics)
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{
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if (graphics->image) return graphics->image->xres;
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else return (REAL)GetDeviceCaps(graphics->hdc, LOGPIXELSX);
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}
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static INT prepare_dc(GpGraphics *graphics, GpPen *pen)
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{
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HPEN gdipen;
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@ -108,7 +114,7 @@ static INT prepare_dc(GpGraphics *graphics, GpPen *pen)
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width = sqrt((pt[1].X - pt[0].X) * (pt[1].X - pt[0].X) +
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(pt[1].Y - pt[0].Y) * (pt[1].Y - pt[0].Y)) / sqrt(2.0);
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width *= pen->width * convert_unit(graphics->hdc,
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width *= pen->width * convert_unit(graphics_res(graphics),
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pen->unit == UnitWorld ? graphics->unit : pen->unit);
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}
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@ -156,7 +162,7 @@ static void transform_and_round_points(GpGraphics *graphics, POINT *pti,
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GpMatrix *matrix;
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int i;
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unitscale = convert_unit(graphics->hdc, graphics->unit);
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unitscale = convert_unit(graphics_res(graphics), graphics->unit);
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/* apply page scale */
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if(graphics->unit != UnitDisplay)
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@ -4602,7 +4608,7 @@ GpStatus WINGDIPAPI GdipTransformPoints(GpGraphics *graphics, GpCoordinateSpace
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stat = GdipCreateMatrix(&matrix);
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if (stat == Ok)
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{
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unitscale = convert_unit(graphics->hdc, graphics->unit);
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unitscale = convert_unit(graphics_res(graphics), graphics->unit);
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if(graphics->unit != UnitDisplay)
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unitscale *= graphics->scale;
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@ -2008,14 +2008,15 @@ GpStatus WINGDIPAPI GdipGetImageDimension(GpImage *image, REAL *width,
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if(image->type == ImageTypeMetafile){
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HDC hdc = GetDC(0);
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*height = convert_unit(hdc, ((GpMetafile*)image)->unit) *
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((GpMetafile*)image)->bounds.Height;
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*width = convert_unit(hdc, ((GpMetafile*)image)->unit) *
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((GpMetafile*)image)->bounds.Width;
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REAL res = (REAL)GetDeviceCaps(hdc, LOGPIXELSX);
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ReleaseDC(0, hdc);
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*height = convert_unit(res, ((GpMetafile*)image)->unit) *
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((GpMetafile*)image)->bounds.Height;
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*width = convert_unit(res, ((GpMetafile*)image)->unit) *
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((GpMetafile*)image)->bounds.Width;
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}
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else if(image->type == ImageTypeBitmap){
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@ -2072,11 +2073,12 @@ GpStatus WINGDIPAPI GdipGetImageHeight(GpImage *image, UINT *height)
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if(image->type == ImageTypeMetafile){
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HDC hdc = GetDC(0);
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*height = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
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((GpMetafile*)image)->bounds.Height);
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REAL res = (REAL)GetDeviceCaps(hdc, LOGPIXELSX);
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ReleaseDC(0, hdc);
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*height = roundr(convert_unit(res, ((GpMetafile*)image)->unit) *
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((GpMetafile*)image)->bounds.Height);
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}
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else if(image->type == ImageTypeBitmap)
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*height = ((GpBitmap*)image)->height;
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@ -2178,11 +2180,12 @@ GpStatus WINGDIPAPI GdipGetImageWidth(GpImage *image, UINT *width)
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if(image->type == ImageTypeMetafile){
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HDC hdc = GetDC(0);
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*width = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
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((GpMetafile*)image)->bounds.Width);
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REAL res = (REAL)GetDeviceCaps(hdc, LOGPIXELSX);
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ReleaseDC(0, hdc);
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*width = roundr(convert_unit(res, ((GpMetafile*)image)->unit) *
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((GpMetafile*)image)->bounds.Width);
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}
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else if(image->type == ImageTypeBitmap)
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*width = ((GpBitmap*)image)->width;
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