Imported Upstream version 1.2.7

[platform/upstream/harfbuzz.git] / util / helper-cairo.cc

diff --git a/util/helper-cairo.cc b/util/helper-cairo.cc
index d576c3f..8f30eea 100644 (file)
--- a/util/helper-cairo.cc
+++ b/util/helper-cairo.cc
@@ -75,7 +75,9 @@ helper_cairo_create_scaled_font (const font_options_t *font_opts)
   hb_font_t *font = hb_font_reference (font_opts->get_font ());
 
   cairo_font_face_t *cairo_face;
-  FT_Face ft_face = hb_ft_font_get_face (font);
+  /* We cannot use the FT_Face from hb_font_t, as doing so will confuse hb_font_t because
+   * cairo will reset the face size.  As such, create new face... */
+  FT_Face ft_face = NULL;//hb_ft_font_get_face (font);
   if (!ft_face)
   {
     if (!ft_library)
@@ -128,6 +130,22 @@ helper_cairo_create_scaled_font (const font_options_t *font_opts)
   return scaled_font;
 }
 
+bool
+helper_cairo_scaled_font_has_color (cairo_scaled_font_t *scaled_font)
+{
+  bool ret = false;
+#ifdef FT_HAS_COLOR
+  FT_Face ft_face = cairo_ft_scaled_font_lock_face (scaled_font);
+  if (ft_face)
+  {
+    if (FT_HAS_COLOR (ft_face))
+      ret = true;
+    cairo_ft_scaled_font_unlock_face (scaled_font);
+  }
+#endif
+  return ret;
+}
+
 
 struct finalize_closure_t {
   void (*callback)(finalize_closure_t *);
@@ -295,7 +313,8 @@ const char *helper_cairo_supported_formats[] =
 cairo_t *
 helper_cairo_create_context (double w, double h,
                             view_options_t *view_opts,
-                            output_options_t *out_opts)
+                            output_options_t *out_opts,
+                            cairo_content_t content)
 {
   cairo_surface_t *(*constructor) (cairo_write_func_t write_func,
                                   void *closure,
@@ -324,42 +343,47 @@ helper_cairo_create_context (double w, double h,
   }
   if (0)
     ;
-    else if (0 == strcasecmp (extension, "ansi"))
+    else if (0 == g_ascii_strcasecmp (extension, "ansi"))
       constructor2 = _cairo_ansi_surface_create_for_stream;
   #ifdef CAIRO_HAS_PNG_FUNCTIONS
-    else if (0 == strcasecmp (extension, "png"))
+    else if (0 == g_ascii_strcasecmp (extension, "png"))
       constructor2 = _cairo_png_surface_create_for_stream;
   #endif
   #ifdef CAIRO_HAS_SVG_SURFACE
-    else if (0 == strcasecmp (extension, "svg"))
+    else if (0 == g_ascii_strcasecmp (extension, "svg"))
       constructor = cairo_svg_surface_create_for_stream;
   #endif
   #ifdef CAIRO_HAS_PDF_SURFACE
-    else if (0 == strcasecmp (extension, "pdf"))
+    else if (0 == g_ascii_strcasecmp (extension, "pdf"))
       constructor = cairo_pdf_surface_create_for_stream;
   #endif
   #ifdef CAIRO_HAS_PS_SURFACE
-    else if (0 == strcasecmp (extension, "ps"))
+    else if (0 == g_ascii_strcasecmp (extension, "ps"))
       constructor = cairo_ps_surface_create_for_stream;
    #ifdef HAS_EPS
-    else if (0 == strcasecmp (extension, "eps"))
+    else if (0 == g_ascii_strcasecmp (extension, "eps"))
       constructor = _cairo_eps_surface_create_for_stream;
    #endif
   #endif
 
 
   unsigned int fr, fg, fb, fa, br, bg, bb, ba;
+  const char *color;
   br = bg = bb = 0; ba = 255;
-  sscanf (view_opts->back + (*view_opts->back=='#'), "%2x%2x%2x%2x", &br, &bg, &bb, &ba);
+  color = view_opts->back ? view_opts->back : DEFAULT_BACK;
+  sscanf (color + (*color=='#'), "%2x%2x%2x%2x", &br, &bg, &bb, &ba);
   fr = fg = fb = 0; fa = 255;
-  sscanf (view_opts->fore + (*view_opts->fore=='#'), "%2x%2x%2x%2x", &fr, &fg, &fb, &fa);
+  color = view_opts->fore ? view_opts->fore : DEFAULT_FORE;
+  sscanf (color + (*color=='#'), "%2x%2x%2x%2x", &fr, &fg, &fb, &fa);
 
-  cairo_content_t content;
-  if (!view_opts->annotate && ba == 255 && br == bg && bg == bb && fr == fg && fg == fb)
-    content = CAIRO_CONTENT_ALPHA;
-  else if (ba == 255)
-    content = CAIRO_CONTENT_COLOR;
-  else
+  if (content == CAIRO_CONTENT_ALPHA)
+  {
+    if (view_opts->annotate ||
+       br != bg || bg != bb ||
+       fr != fg || fg != fb)
+      content = CAIRO_CONTENT_COLOR;
+  }
+  if (ba != 255)
     content = CAIRO_CONTENT_COLOR_ALPHA;
 
   cairo_surface_t *surface;
@@ -456,16 +480,16 @@ helper_cairo_line_from_buffer (helper_cairo_line_t *l,
   for (i = 0; i < (int) l->num_glyphs; i++)
   {
     l->glyphs[i].index = hb_glyph[i].codepoint;
-    l->glyphs[i].x = scalbn ( hb_position->x_offset + x, scale_bits);
-    l->glyphs[i].y = scalbn (-hb_position->y_offset + y, scale_bits);
+    l->glyphs[i].x = scalbn ((double)  hb_position->x_offset + x, scale_bits);
+    l->glyphs[i].y = scalbn ((double) -hb_position->y_offset + y, scale_bits);
     x +=  hb_position->x_advance;
     y += -hb_position->y_advance;
 
     hb_position++;
   }
   l->glyphs[i].index = -1;
-  l->glyphs[i].x = scalbn (x, scale_bits);
-  l->glyphs[i].y = scalbn (y, scale_bits);
+  l->glyphs[i].x = scalbn ((double) x, scale_bits);
+  l->glyphs[i].y = scalbn ((double) y, scale_bits);
 
   if (l->num_clusters) {
     memset ((void *) l->clusters, 0, l->num_clusters * sizeof (l->clusters[0]));