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win32-font: Make cairo_show_text() work again

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For now implement _ucs4_to_index() and leave _text_to_glyphs()
disabled.
This commit is contained in:
Adrian Johnson 2008-08-10 14:17:01 +09:30
parent e9933ba28c
commit d1c619bc7d
1 changed files with 32 additions and 2 deletions
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34
src/cairo-win32-font.c
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@ -826,6 +826,36 @@ _cairo_win32_scaled_font_text_to_glyphs (void *abstract_font,
return status;
}
static unsigned long
_cairo_win32_scaled_font_ucs4_to_index (void *abstract_font,
uint32_t ucs4)
{
cairo_win32_scaled_font_t *scaled_font = abstract_font;
wchar_t unicode[2];
WORD glyph_index;
HDC hdc = NULL;
cairo_status_t status;
hdc = _get_global_font_dc ();
if (!hdc)
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
if (status)
return 0;
unicode[0] = ucs4;
unicode[1] = 0;
if (GetGlyphIndicesW (hdc, unicode, 1, &glyph_index, 0) == GDI_ERROR) {
_cairo_win32_print_gdi_error ("_cairo_win32_scaled_font_ucs4_to_index:GetGlyphIndicesW");
glyph_index = 0;
}
cairo_win32_scaled_font_done_font (&scaled_font->base);
return glyph_index;
}
static cairo_status_t
_cairo_win32_scaled_font_set_metrics (cairo_win32_scaled_font_t *scaled_font)
{
@ -1780,8 +1810,8 @@ const cairo_scaled_font_backend_t _cairo_win32_scaled_font_backend = {
_cairo_win32_scaled_font_create_toy,
_cairo_win32_scaled_font_fini,
_cairo_win32_scaled_font_glyph_init,
/* _cairo_win32_scaled_font_text_to_glyphs, FIXME */
NULL, /* ucs4_to_index */
NULL, /* _cairo_win32_scaled_font_text_to_glyphs, FIXME */
_cairo_win32_scaled_font_ucs4_to_index,
_cairo_win32_scaled_font_show_glyphs,
_cairo_win32_scaled_font_load_truetype_table,
_cairo_win32_scaled_font_index_to_ucs4,