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dwrite: Properly implement CreateFontFaceFromHdc(). 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
This commit is contained in:
Nikolay Sivov 2015-10-06 13:46:18 +03:00 committed by Alexandre Julliard
parent 2be56fdc95
commit f2b830ec76
1 changed files with 63 additions and 9 deletions
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72
dlls/dwrite/gdiinterop.c
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@ -777,31 +777,85 @@ static HRESULT WINAPI gdiinterop_ConvertFontFaceToLOGFONT(IDWriteGdiInterop *ifa
return hr;
}
struct font_realization_info {
DWORD size;
DWORD flags;
DWORD cache_num;
DWORD instance_id;
DWORD unk;
DWORD face_index;
};
struct font_fileinfo {
FILETIME writetime;
LARGE_INTEGER size;
WCHAR path[1];
};
/* Undocumented gdi32 exports, used to access actually selected font information */
extern BOOL WINAPI GetFontRealizationInfo(HDC hdc, struct font_realization_info *info);
extern BOOL WINAPI GetFontFileInfo(DWORD instance_id, DWORD unknown, struct font_fileinfo *info, DWORD size, DWORD *needed);
static HRESULT WINAPI gdiinterop_CreateFontFaceFromHdc(IDWriteGdiInterop *iface,
HDC hdc, IDWriteFontFace **fontface)
{
struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
IDWriteFont *font;
LOGFONTW logfont;
HFONT hfont;
struct font_realization_info info;
struct font_fileinfo *fileinfo;
DWRITE_FONT_FILE_TYPE filetype;
DWRITE_FONT_FACE_TYPE facetype;
IDWriteFontFile *file;
BOOL is_supported;
UINT32 facenum;
DWORD needed;
HRESULT hr;
TRACE("(%p)->(%p %p)\n", This, hdc, fontface);
*fontface = NULL;
hfont = GetCurrentObject(hdc, OBJ_FONT);
if (!hfont)
if (!hdc)
return E_INVALIDARG;
GetObjectW(hfont, sizeof(logfont), &logfont);
hr = IDWriteGdiInterop_CreateFontFromLOGFONT(iface, &logfont, &font);
/* get selected font id */
info.size = sizeof(info);
if (!GetFontRealizationInfo(hdc, &info)) {
WARN("failed to get selected font id\n");
return E_FAIL;
}
needed = 0;
GetFontFileInfo(info.instance_id, 0, NULL, 0, &needed);
if (needed == 0) {
WARN("failed to get font file info size\n");
return E_FAIL;
}
fileinfo = heap_alloc(needed);
if (!fileinfo)
return E_OUTOFMEMORY;
if (!GetFontFileInfo(info.instance_id, 0, fileinfo, needed, &needed)) {
heap_free(fileinfo);
return E_FAIL;
}
hr = IDWriteFactory2_CreateFontFileReference(This->factory, fileinfo->path, &fileinfo->writetime,
&file);
heap_free(fileinfo);
if (FAILED(hr))
return hr;
hr = IDWriteFont_CreateFontFace(font, fontface);
IDWriteFont_Release(font);
is_supported = FALSE;
hr = IDWriteFontFile_Analyze(file, &is_supported, &filetype, &facetype, &facenum);
if (FAILED(hr) || !is_supported) {
IDWriteFontFile_Release(file);
return hr;
}
hr = IDWriteFactory2_CreateFontFace(This->factory, facetype, 1, &file, info.face_index, DWRITE_FONT_SIMULATIONS_NONE,
fontface);
IDWriteFontFile_Release(file);
return hr;
}