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gdiplus: Implement GdipAddPathString.

This commit is contained in:
Maarten Lankhorst 2011-02-17 11:06:43 +01:00 committed by Alexandre Julliard
parent c057694883
commit b8a1e6c687
3 changed files with 186 additions and 10 deletions
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10
dlls/gdiplus/gdiplus_private.h
View File

@ -397,4 +397,14 @@ struct GpRegion{
region_element node;
};
typedef GpStatus (*gdip_format_string_callback)(HDC hdc,
GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
INT lineno, const RectF *bounds, void *user_data);
GpStatus gdip_format_string(HDC hdc,
GDIPCONST WCHAR *string, INT length, GDIPCONST GpFont *font,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
gdip_format_string_callback callback, void *user_data);
#endif

7
dlls/gdiplus/graphics.c
View File

@ -3989,12 +3989,7 @@ GpStatus WINGDIPAPI GdipIsVisibleRectI(GpGraphics *graphics, INT x, INT y, INT w
return GdipIsVisibleRect(graphics, (REAL)x, (REAL)y, (REAL)width, (REAL)height, result);
}
typedef GpStatus (*gdip_format_string_callback)(HDC hdc,
GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
INT lineno, const RectF *bounds, void *user_data);
static GpStatus gdip_format_string(HDC hdc,
GpStatus gdip_format_string(HDC hdc,
GDIPCONST WCHAR *string, INT length, GDIPCONST GpFont *font,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
gdip_format_string_callback callback, void *user_data)

179
dlls/gdiplus/graphicspath.c
View File

@ -831,16 +831,187 @@ GpStatus WINGDIPAPI GdipAddPathPolygonI(GpPath *path, GDIPCONST GpPoint *points,
return status;
}
static float fromfixedpoint(const FIXED v)
{
float f = ((float)v.fract) / (1<<(sizeof(v.fract)*8));
f += v.value;
return f;
}
struct format_string_args
{
GpPath *path;
UINT maxY;
};
static GpStatus format_string_callback(HDC dc,
GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
INT lineno, const RectF *bounds, void *priv)
{
static const MAT2 identity = { {0,1}, {0,0}, {0,0}, {0,1} };
struct format_string_args *args = priv;
GpPath *path = args->path;
GpStatus status = Ok;
float x = bounds->X;
float y = bounds->Y;
int i;
for (i = index; i < length; ++i)
{
GLYPHMETRICS gm;
TTPOLYGONHEADER *ph = NULL;
char *start;
DWORD len, ofs = 0;
UINT bb_end;
len = GetGlyphOutlineW(dc, string[i], GGO_BEZIER, &gm, 0, NULL, &identity);
if (len == GDI_ERROR)
{
status = GenericError;
break;
}
ph = GdipAlloc(len);
start = (char *)ph;
if (!ph || !lengthen_path(path, len / sizeof(POINTFX)))
{
status = OutOfMemory;
break;
}
GetGlyphOutlineW(dc, string[i], GGO_BEZIER, &gm, len, start, &identity);
bb_end = gm.gmBlackBoxY + gm.gmptGlyphOrigin.y;
if (bb_end + y > args->maxY)
args->maxY = bb_end + y;
ofs = 0;
while (ofs < len)
{
DWORD ofs_start = ofs;
ph = (TTPOLYGONHEADER*)&start[ofs];
path->pathdata.Types[path->pathdata.Count] = PathPointTypeStart;
path->pathdata.Points[path->pathdata.Count].X = x + fromfixedpoint(ph->pfxStart.x);
path->pathdata.Points[path->pathdata.Count++].Y = y + bb_end - fromfixedpoint(ph->pfxStart.y);
TRACE("Starting at count %i with pos %f, %f)\n", path->pathdata.Count, x, y);
ofs += sizeof(*ph);
while (ofs - ofs_start < ph->cb)
{
TTPOLYCURVE *curve = (TTPOLYCURVE*)&start[ofs];
int j;
ofs += sizeof(TTPOLYCURVE) + (curve->cpfx - 1) * sizeof(POINTFX);
switch (curve->wType)
{
case TT_PRIM_LINE:
for (j = 0; j < curve->cpfx; ++j)
{
path->pathdata.Types[path->pathdata.Count] = PathPointTypeLine;
path->pathdata.Points[path->pathdata.Count].X = x + fromfixedpoint(curve->apfx[j].x);
path->pathdata.Points[path->pathdata.Count++].Y = y + bb_end - fromfixedpoint(curve->apfx[j].y);
}
break;
case TT_PRIM_CSPLINE:
for (j = 0; j < curve->cpfx; ++j)
{
path->pathdata.Types[path->pathdata.Count] = PathPointTypeBezier;
path->pathdata.Points[path->pathdata.Count].X = x + fromfixedpoint(curve->apfx[j].x);
path->pathdata.Points[path->pathdata.Count++].Y = y + bb_end - fromfixedpoint(curve->apfx[j].y);
}
break;
default:
ERR("Unhandled type: %u\n", curve->wType);
status = GenericError;
}
}
path->pathdata.Types[path->pathdata.Count - 1] |= PathPointTypeCloseSubpath;
}
path->newfigure = TRUE;
x += gm.gmCellIncX;
y += gm.gmCellIncY;
GdipFree(ph);
if (status != Ok)
break;
}
return status;
}
GpStatus WINGDIPAPI GdipAddPathString(GpPath* path, GDIPCONST WCHAR* string, INT length, GDIPCONST GpFontFamily* family, INT style, REAL emSize, GDIPCONST RectF* layoutRect, GDIPCONST GpStringFormat* format)
{
FIXME("(%p, %p, %d, %p, %d, %f, %p, %p): stub\n", path, string, length, family, style, emSize, layoutRect, format);
return NotImplemented;
GpFont *font;
GpStatus status;
HANDLE hfont;
HDC dc;
GpPath *backup;
struct format_string_args args;
int i;
FIXME("(%p, %s, %d, %p, %d, %f, %p, %p): stub\n", path, debugstr_w(string), length, family, style, emSize, layoutRect, format);
if (!path || !string || !family || !emSize || !layoutRect || !format)
return InvalidParameter;
status = GdipCreateFont(family, emSize, style, UnitPixel, &font);
if (status != Ok)
return status;
hfont = CreateFontIndirectW(&font->lfw);
if (!hfont)
{
WARN("Failed to create font\n");
return GenericError;
}
if ((status = GdipClonePath(path, &backup)) != Ok)
{
DeleteObject(hfont);
return status;
}
dc = CreateCompatibleDC(0);
SelectObject(dc, hfont);
args.path = path;
args.maxY = 0;
status = gdip_format_string(dc, string, length, NULL, layoutRect, format, format_string_callback, &args);
DeleteDC(dc);
DeleteObject(hfont);
if (status != Ok) /* free backup */
{
GdipFree(path->pathdata.Points);
GdipFree(path->pathdata.Types);
*path = *backup;
GdipFree(backup);
return status;
}
if (format && format->vertalign == StringAlignmentCenter && layoutRect->Y + args.maxY < layoutRect->Height)
{
float inc = layoutRect->Height - args.maxY - layoutRect->Y;
inc /= 2;
for (i = backup->pathdata.Count; i < path->pathdata.Count; ++i)
path->pathdata.Points[i].Y += inc;
} else if (format && format->vertalign == StringAlignmentFar) {
float inc = layoutRect->Height - args.maxY - layoutRect->Y;
for (i = backup->pathdata.Count; i < path->pathdata.Count; ++i)
path->pathdata.Points[i].Y += inc;
}
GdipDeletePath(backup);
return status;
}
GpStatus WINGDIPAPI GdipAddPathStringI(GpPath* path, GDIPCONST WCHAR* string, INT length, GDIPCONST GpFontFamily* family, INT style, REAL emSize, GDIPCONST Rect* layoutRect, GDIPCONST GpStringFormat* format)
{
FIXME("(%p, %p, %d, %p, %d, %f, %p, %p): stub\n", path, string, length, family, style, emSize, layoutRect, format);
return NotImplemented;
if (layoutRect)
{
RectF layoutRectF = {
(REAL)layoutRect->X,
(REAL)layoutRect->Y,
(REAL)layoutRect->Width,
(REAL)layoutRect->Height
};
return GdipAddPathString(path, string, length, family, style, emSize, &layoutRectF, format);
}
return InvalidParameter;
}
GpStatus WINGDIPAPI GdipClonePath(GpPath* path, GpPath **clone)