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win32: Implement _cairo_win32_scaled_font_init_glyph_surface()

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This is required when using win32 bitmap fonts with PS/PDF surfaces.
This commit is contained in:
Adrian Johnson 2007-12-02 01:36:43 +10:30
parent 1441e165f2
commit b701b42630
1 changed files with 61 additions and 2 deletions
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63
src/cairo-win32-font.c
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@ -101,6 +101,7 @@ typedef struct {
cairo_bool_t is_truetype;
cairo_bool_t glyph_indexing;
cairo_bool_t is_bitmap;
cairo_bool_t delete_scaled_hfont;
} cairo_win32_scaled_font_t;
@ -112,6 +113,10 @@ static cairo_status_t
_cairo_win32_scaled_font_init_glyph_metrics (cairo_win32_scaled_font_t *scaled_font,
cairo_scaled_glyph_t *scaled_glyph);
static cairo_status_t
_cairo_win32_scaled_font_init_glyph_surface (cairo_win32_scaled_font_t *scaled_font,
cairo_scaled_glyph_t *scaled_glyph);
static cairo_status_t
_cairo_win32_scaled_font_init_glyph_path (cairo_win32_scaled_font_t *scaled_font,
cairo_scaled_glyph_t *scaled_glyph);
@ -742,6 +747,11 @@ _cairo_win32_scaled_font_set_metrics (cairo_win32_scaled_font_t *scaled_font)
}
if (metrics.tmPitchAndFamily & TMPF_VECTOR)
scaled_font->is_bitmap = FALSE;
else
scaled_font->is_bitmap = TRUE;
scaled_font->is_truetype = (metrics.tmPitchAndFamily & TMPF_TRUETYPE) != 0;
scaled_font->glyph_indexing = scaled_font->is_truetype ||
(GetFontData (hdc, OPENTYPE_CFF_TAG, 0, NULL, 0) != GDI_ERROR);
@ -1157,8 +1167,10 @@ _cairo_win32_scaled_font_glyph_init (void *abstract_font,
return status;
}
if ((info & CAIRO_SCALED_GLYPH_INFO_SURFACE) != 0) {
ASSERT_NOT_REACHED;
if (info & CAIRO_SCALED_GLYPH_INFO_SURFACE) {
status = _cairo_win32_scaled_font_init_glyph_surface (scaled_font, scaled_glyph);
if (status)
return status;
}
if ((info & CAIRO_SCALED_GLYPH_INFO_PATH) != 0) {
@ -1330,6 +1342,50 @@ _cairo_win32_scaled_font_map_glyphs_to_unicode (void *abstract_font,
font_subset->to_unicode[i] = font_subset->glyphs[i];
}
static cairo_status_t
_cairo_win32_scaled_font_init_glyph_surface (cairo_win32_scaled_font_t *scaled_font,
cairo_scaled_glyph_t *scaled_glyph)
{
cairo_status_t status = CAIRO_STATUS_SUCCESS;
cairo_glyph_t glyph;
cairo_win32_surface_t *surface;
cairo_t *cr;
cairo_surface_t *image;
int width, height;
int x1, y1, x2, y2;
x1 = _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x);
y1 = _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y);
x2 = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.x);
y2 = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.y);
width = x2 - x1;
height = y2 - y1;
surface = (cairo_win32_surface_t *)
cairo_win32_surface_create_with_dib (CAIRO_FORMAT_RGB24, width, height);
cr = cairo_create((cairo_surface_t *)surface);
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_paint (cr);
cairo_destroy(cr);
glyph.index = _cairo_scaled_glyph_index (scaled_glyph);
glyph.x = -x1;
glyph.y = -y1;
status = _draw_glyphs_on_surface (surface, scaled_font, RGB(0,0,0),
0, 0, &glyph, 1);
GdiFlush();
image = _compute_a8_mask (surface);
cairo_surface_set_device_offset ((cairo_surface_t *)image, -x1, -y1);
_cairo_scaled_glyph_set_surface (scaled_glyph,
&scaled_font->base,
(cairo_image_surface_t*)image);
cairo_surface_destroy (&surface->base);
return status;
}
static void
_cairo_win32_transform_FIXED_to_fixed (cairo_matrix_t *matrix,
FIXED Fx, FIXED Fy,
@ -1357,6 +1413,9 @@ _cairo_win32_scaled_font_init_glyph_path (cairo_win32_scaled_font_t *scaled_font
cairo_fixed_t x, y;
UINT glyph_index_option;
if (scaled_font->is_bitmap)
return CAIRO_INT_STATUS_UNSUPPORTED;
hdc = _get_global_font_dc ();
if (!hdc)
return _cairo_error (CAIRO_STATUS_NO_MEMORY);