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gdiplus: Measure strings at device size, then rescale to world size.

This commit is contained in:
Vincent Povirk 2012-03-27 11:44:52 -05:00 committed by Alexandre Julliard
parent 447b045825
commit e2e77545ff
1 changed files with 27 additions and 7 deletions
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34
dlls/gdiplus/graphics.c
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@ -4943,6 +4943,7 @@ struct measure_string_args {
RectF *bounds;
INT *codepointsfitted;
INT *linesfilled;
REAL rel_width, rel_height;
};
static GpStatus measure_string_callback(HDC hdc,
@ -4952,12 +4953,16 @@ static GpStatus measure_string_callback(HDC hdc,
INT underlined_index_count, void *user_data)
{
struct measure_string_args *args = user_data;
REAL new_width, new_height;
if (bounds->Width > args->bounds->Width)
args->bounds->Width = bounds->Width;
new_width = bounds->Width / args->rel_width;
new_height = (bounds->Height + bounds->Y - args->bounds->Y) / args->rel_height;
if (bounds->Height + bounds->Y > args->bounds->Height + args->bounds->Y)
args->bounds->Height = bounds->Height + bounds->Y - args->bounds->Y;
if (new_width > args->bounds->Width)
args->bounds->Width = new_width;
if (new_height > args->bounds->Height)
args->bounds->Height = new_height;
if (args->codepointsfitted)
*args->codepointsfitted = index + length;
@ -4977,9 +4982,10 @@ GpStatus WINGDIPAPI GdipMeasureString(GpGraphics *graphics,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format, RectF *bounds,
INT *codepointsfitted, INT *linesfilled)
{
HFONT oldfont;
HFONT oldfont, gdifont;
struct measure_string_args args;
HDC temp_hdc=NULL, hdc;
GpPointF pt[3];
TRACE("(%p, %s, %i, %p, %s, %p, %p, %p, %p)\n", graphics,
debugstr_wn(string, length), length, font, debugstr_rectf(rect), format,
@ -5002,7 +5008,20 @@ GpStatus WINGDIPAPI GdipMeasureString(GpGraphics *graphics,
if(format)
TRACE("may be ignoring some format flags: attr %x\n", format->attr);
oldfont = SelectObject(hdc, CreateFontIndirectW(&font->lfw));
pt[0].X = 0.0;
pt[0].Y = 0.0;
pt[1].X = 1.0;
pt[1].Y = 0.0;
pt[2].X = 0.0;
pt[2].Y = 1.0;
GdipTransformPoints(graphics, CoordinateSpaceDevice, CoordinateSpaceWorld, pt, 3);
args.rel_width = sqrt((pt[1].Y-pt[0].Y)*(pt[1].Y-pt[0].Y)+
(pt[1].X-pt[0].X)*(pt[1].X-pt[0].X));
args.rel_height = sqrt((pt[2].Y-pt[0].Y)*(pt[2].Y-pt[0].Y)+
(pt[2].X-pt[0].X)*(pt[2].X-pt[0].X));
get_font_hfont(graphics, font, &gdifont);
oldfont = SelectObject(hdc, gdifont);
bounds->X = rect->X;
bounds->Y = rect->Y;
@ -5016,7 +5035,8 @@ GpStatus WINGDIPAPI GdipMeasureString(GpGraphics *graphics,
gdip_format_string(hdc, string, length, font, rect, format,
measure_string_callback, &args);
DeleteObject(SelectObject(hdc, oldfont));
SelectObject(hdc, oldfont);
DeleteObject(gdifont);
if (temp_hdc)
DeleteDC(temp_hdc);