Ejemplo n.º 1
0
const SimpleFontData* FontCache::getFontDataForCharacters(const Font& font, const UChar* characters, int length)
{
#if defined(USE_FREETYPE)
    FcResult fresult;
    FontPlatformData* prim = const_cast<FontPlatformData*>(&font.primaryFont()->platformData());

    if (!prim->m_fallbacks)
        prim->m_fallbacks = FcFontSort(NULL, prim->m_pattern, FcTrue, NULL, &fresult);

    FcFontSet* fs = prim->m_fallbacks;

    for (int i = 0; i < fs->nfont; i++) {
        FcPattern* fin = FcFontRenderPrepare(NULL, prim->m_pattern, fs->fonts[i]);
        cairo_font_face_t* fontFace = cairo_ft_font_face_create_for_pattern(fin);
        FontPlatformData alternateFont(fontFace, font.fontDescription().computedPixelSize(), false, false);
        cairo_font_face_destroy(fontFace);
        alternateFont.m_pattern = fin;
        SimpleFontData* sfd = getCachedFontData(&alternateFont);
        if (sfd->containsCharacters(characters, length))
            return sfd;
    }
#endif

    return 0;
}
Ejemplo n.º 2
0
const SimpleFontData* FontCache::getFontDataForCharacters(const Font& font, const UChar* characters, int length)
{
    FcResult fresult;
    // Avoid copying FontPlatformData.
    FontPlatformData* prim = const_cast<FontPlatformData*>(&font.primaryFont()->m_font);

    if (!prim->m_fallbacks)
        prim->m_fallbacks = FcFontSort(NULL, prim->m_pattern, FcTrue, NULL, &fresult);

    FcFontSet* fs = prim->m_fallbacks;
    
    FT_Library library = FontPlatformData::m_library;

    FcChar8* fc_filename;
    char* filename;
    int id;
    FT_Face face;
    for (int i = 0; i < fs->nfont; i++) {
        FcPattern* fin = FcFontRenderPrepare(0, prim->m_pattern, fs->fonts[i]);

        if (FcPatternGetString(fin, FC_FILE, 0, &fc_filename) != FcResultMatch)
            continue;

        filename = (char *) fc_filename; // Use C cast as FcChar is a fontconfig type.

        if (FcPatternGetInteger(fin, FC_INDEX, 0, &id) != FcResultMatch)
            continue;

        if (FT_Error error = FT_New_Face(library, filename, id, &face))
            continue;

        // FIXME: is it really necessary ?
        FT_Set_Pixel_Sizes(face, 0, static_cast<uint> (font.fontDescription().computedSize()));

        FontPlatformData alternateFont(face, font.fontDescription().computedPixelSize(), false, false);
        // FIXME: FT_Done_Face(face); we should clean the face correctly the FT_Face but we can't do that here...
        alternateFont.m_pattern = fin;
        SimpleFontData* sfd = getCachedFontData(&alternateFont);
        if (sfd->containsCharacters(characters, length))
            return sfd;
    }
    return 0;
}