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gdi32: Cache font enum info. 

Cache the enum info so that repeated calls to EnumFontFamiles and such
does not have to repeatedly load the font file.
This commit is contained in:
Aric Stewart 2007-12-11 22:09:21 +09:00 committed by Alexandre Julliard
parent 67271dcf3b
commit 3c9e7aba75
1 changed files with 20 additions and 0 deletions
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20
dlls/gdi32/freetype.c
View File

@ -259,6 +259,11 @@ typedef struct tagFace {
Bitmap_Size size; /* set if face is a bitmap */
BOOL external; /* TRUE if we should manually add this font to the registry */
struct tagFamily *family;
/* Cached data for Enum */
BOOL cache_valid;
ENUMLOGFONTEXW elf;
NEWTEXTMETRICEXW ntm;
DWORD type;
} Face;
typedef struct tagFamily {
@ -1234,6 +1239,7 @@ static INT AddFontToList(const char *file, void *font_data_ptr, DWORD font_data_
}
}
face = HeapAlloc(GetProcessHeap(), 0, sizeof(*face));
face->cache_valid = FALSE;
list_add_tail(&family->faces, &face->entry);
face->StyleName = StyleW;
if (file)
@ -3253,6 +3259,15 @@ static void GetEnumStructs(Face *face, LPENUMLOGFONTEXW pelf,
GdiFont *font = alloc_font();
LONG width, height;
if (face->cache_valid)
{
TRACE("Cached\n");
memcpy(pelf,&face->elf,sizeof(ENUMLOGFONTEXW));
memcpy(pntm,&face->ntm,sizeof(NEWTEXTMETRICEXW));
*ptype = face->type;
return;
}
if(face->scalable) {
height = 100;
width = 0;
@ -3348,6 +3363,11 @@ static void GetEnumStructs(Face *face, LPENUMLOGFONTEXW pelf,
pelf->elfScript[0] = '\0'; /* This will get set in WineEngEnumFonts */
memcpy(&face->elf,pelf,sizeof(ENUMLOGFONTEXW));
memcpy(&face->ntm,pntm,sizeof(NEWTEXTMETRICEXW));
face->type = *ptype;
face->cache_valid = TRUE;
free_font(font);
}