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icon-theme: Support recolorable .symbolic.png files
If an icon theme has a file called "foo-symbolic.symbolic.png" which was converted from svg using gtk-encode-symbolic-svg we will read it in an recolor, allowing symbolic icons without using librsvg. https://bugzilla.gnome.org/show_bug.cgi?id=730450
This commit is contained in:
Alexander Larsson
Matthias Clasen
parent
50ba3c72bb
commit
1d68801ade
@ -151,7 +151,8 @@ typedef enum
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ICON_SUFFIX_XPM = 1 << 0,
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ICON_SUFFIX_SVG = 1 << 1,
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ICON_SUFFIX_PNG = 1 << 2,
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HAS_ICON_FILE = 1 << 3
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HAS_ICON_FILE = 1 << 3,
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ICON_SUFFIX_SYMBOLIC_PNG = 1 << 4
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} IconSuffix;
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#define INFO_CACHE_LRU_SIZE 32
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@ -1251,6 +1252,9 @@ strip_suffix (const gchar *filename)
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{
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const gchar *dot;
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if (g_str_has_suffix (filename, ".symbolic.png"))
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return g_strndup (filename, strlen(filename)-13);
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dot = strrchr (filename, '.');
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if (dot == NULL)
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@ -1633,7 +1637,8 @@ icon_uri_is_symbolic (const gchar *icon_name)
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{
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return g_str_has_suffix (icon_name, "-symbolic.svg")
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|| g_str_has_suffix (icon_name, "-symbolic-ltr.svg")
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|| g_str_has_suffix (icon_name, "-symbolic-rtl.svg");
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|| g_str_has_suffix (icon_name, "-symbolic-rtl.svg")
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|| g_str_has_suffix (icon_name, ".symbolic.png");
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}
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static GtkIconInfo *
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@ -1765,7 +1770,7 @@ real_choose_icon (GtkIconTheme *icon_theme,
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if (allow_svg &&
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unthemed_icon->svg_filename &&
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(!unthemed_icon->no_svg_filename ||
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suffix_from_name (unthemed_icon->no_svg_filename) != ICON_SUFFIX_PNG))
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suffix_from_name (unthemed_icon->no_svg_filename) < ICON_SUFFIX_PNG))
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icon_info->filename = g_strdup (unthemed_icon->svg_filename);
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else if (unthemed_icon->no_svg_filename)
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icon_info->filename = g_strdup (unthemed_icon->no_svg_filename);
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@ -2824,6 +2829,8 @@ string_from_suffix (IconSuffix suffix)
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return ".svg";
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case ICON_SUFFIX_PNG:
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return ".png";
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case ICON_SUFFIX_SYMBOLIC_PNG:
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return ".symbolic.png";
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default:
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g_assert_not_reached();
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}
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@ -2835,7 +2842,9 @@ suffix_from_name (const gchar *name)
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{
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IconSuffix retval;
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if (g_str_has_suffix (name, ".png"))
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if (g_str_has_suffix (name, ".symbolic.png"))
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retval = ICON_SUFFIX_SYMBOLIC_PNG;
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else if (g_str_has_suffix (name, ".png"))
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retval = ICON_SUFFIX_PNG;
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else if (g_str_has_suffix (name, ".svg"))
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retval = ICON_SUFFIX_SVG;
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@ -2851,7 +2860,9 @@ static IconSuffix
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best_suffix (IconSuffix suffix,
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gboolean allow_svg)
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{
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if ((suffix & ICON_SUFFIX_PNG) != 0)
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if ((suffix & ICON_SUFFIX_SYMBOLIC_PNG) != 0)
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return ICON_SUFFIX_SYMBOLIC_PNG;
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else if ((suffix & ICON_SUFFIX_PNG) != 0)
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return ICON_SUFFIX_PNG;
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else if (allow_svg && ((suffix & ICON_SUFFIX_SVG) != 0))
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return ICON_SUFFIX_SVG;
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@ -2866,7 +2877,7 @@ theme_dir_get_icon_suffix (IconThemeDir *dir,
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const gchar *icon_name,
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gboolean *has_icon_file)
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{
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IconSuffix suffix;
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IconSuffix suffix, symbolic_suffix;
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if (dir->cache)
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{
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@ -2874,6 +2885,19 @@ theme_dir_get_icon_suffix (IconThemeDir *dir,
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icon_name,
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dir->subdir_index);
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if (icon_name_is_symbolic (icon_name))
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{
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/* Look for foo-symbolic.symbolic.png, as the cache only stores the ".png" suffix */
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char *icon_name_with_prefix = g_strconcat (icon_name, ".symbolic", NULL);
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symbolic_suffix = (IconSuffix)_gtk_icon_cache_get_icon_flags (dir->cache,
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icon_name_with_prefix,
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dir->subdir_index);
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g_free (icon_name_with_prefix);
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if (symbolic_suffix & ICON_SUFFIX_PNG)
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suffix = ICON_SUFFIX_SYMBOLIC_PNG;
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}
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if (has_icon_file)
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*has_icon_file = suffix & HAS_ICON_FILE;
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@ -4211,15 +4235,142 @@ symbolic_cache_get_proxy (SymbolicPixbufCache *symbolic_cache,
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return symbolic_cache->proxy_pixbuf;
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}
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static void
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rgba_to_pixel(const GdkRGBA *rgba,
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guint8 pixel[4])
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{
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pixel[0] = rgba->red * 255;
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pixel[1] = rgba->green * 255;
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pixel[2] = rgba->blue * 255;
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pixel[3] = rgba->alpha * 255;
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}
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static GdkPixbuf *
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gtk_icon_info_load_symbolic_internal (GtkIconInfo *icon_info,
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const GdkRGBA *fg,
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const GdkRGBA *success_color,
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const GdkRGBA *warning_color,
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const GdkRGBA *error_color,
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gboolean use_cache,
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GError **error)
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color_symbolic_pixbuf (GdkPixbuf *symbolic,
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const GdkRGBA *fg_color,
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const GdkRGBA *success_color,
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const GdkRGBA *warning_color,
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const GdkRGBA *error_color)
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{
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int width, height, x, y, src_stride, dst_stride;
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guchar *src_data, *dst_data;
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guchar *src_row, *dst_row;
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GdkPixbuf *colored;
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guint8 fg_pixel[4], success_pixel[4], warning_pixel[4], error_pixel[4];
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rgba_to_pixel (fg_color, fg_pixel);
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rgba_to_pixel (success_color, success_pixel);
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rgba_to_pixel (warning_color, warning_pixel);
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rgba_to_pixel (error_color, error_pixel);
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width = gdk_pixbuf_get_width (symbolic);
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height = gdk_pixbuf_get_height (symbolic);
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colored = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, width, height);
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src_stride = gdk_pixbuf_get_rowstride (symbolic);
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src_data = gdk_pixbuf_get_pixels (symbolic);
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dst_data = gdk_pixbuf_get_pixels (colored);
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dst_stride = gdk_pixbuf_get_rowstride (colored);
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for (y = 0; y < height; y++)
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{
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src_row = src_data + src_stride * y;
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dst_row = dst_data + dst_stride * y;
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for (x = 0; x < width; x++)
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{
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guint r, g, b, a;
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int c1, c2, c3, c4;
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a = src_row[3];
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dst_row[3] = a;
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if (a == 0)
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{
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dst_row[0] = 0;
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dst_row[1] = 0;
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dst_row[2] = 0;
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}
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else
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{
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c2 = src_row[0];
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c3 = src_row[1];
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c4 = src_row[2];
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if (c2 == 0 && c3 == 0 && c4 == 0)
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{
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dst_row[0] = fg_pixel[0];
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dst_row[1] = fg_pixel[1];
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dst_row[2] = fg_pixel[2];
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}
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else
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{
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c1 = 255 - c2 - c3 - c4;
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r = fg_pixel[0] * c1 + success_pixel[0] * c2 + warning_pixel[0] * c3 + error_pixel[0] * c4;
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g = fg_pixel[1] * c1 + success_pixel[1] * c2 + warning_pixel[1] * c3 + error_pixel[1] * c4;
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b = fg_pixel[2] * c1 + success_pixel[2] * c2 + warning_pixel[2] * c3 + error_pixel[2] * c4;
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dst_row[0] = r / 255;
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dst_row[1] = g / 255;
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dst_row[2] = b / 255;
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}
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}
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src_row += 4;
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dst_row += 4;
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}
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}
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return colored;
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}
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static GdkPixbuf *
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gtk_icon_info_load_symbolic_png (GtkIconInfo *icon_info,
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const GdkRGBA *fg,
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const GdkRGBA *success_color,
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const GdkRGBA *warning_color,
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const GdkRGBA *error_color,
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GError **error)
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{
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GdkRGBA fg_default = { 0.7450980392156863, 0.7450980392156863, 0.7450980392156863, 1.0};
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GdkRGBA success_default = { 0.3046921492332342,0.6015716792553597, 0.023437857633325704, 1.0};
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GdkRGBA warning_default = {0.9570458533607996, 0.47266346227206835, 0.2421911955443656, 1.0 };
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GdkRGBA error_default = { 0.796887159533074, 0 ,0, 1.0 };
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if (!icon_info_ensure_scale_and_pixbuf (icon_info))
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{
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if (icon_info->load_error)
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{
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if (error)
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*error = g_error_copy (icon_info->load_error);
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}
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else
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{
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g_set_error_literal (error,
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GTK_ICON_THEME_ERROR,
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GTK_ICON_THEME_NOT_FOUND,
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_("Failed to load icon"));
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}
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return NULL;
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}
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return color_symbolic_pixbuf (icon_info->pixbuf,
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fg ? fg : &fg_default,
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success_color ? success_color : &success_default,
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warning_color ? warning_color : &warning_default,
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error_color ? error_color : &error_default);
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}
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static GdkPixbuf *
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gtk_icon_info_load_symbolic_svg (GtkIconInfo *icon_info,
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const GdkRGBA *fg,
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const GdkRGBA *success_color,
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const GdkRGBA *warning_color,
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const GdkRGBA *error_color,
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GError **error)
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{
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GInputStream *stream;
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GdkPixbuf *pixbuf;
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@ -4231,20 +4382,6 @@ gtk_icon_info_load_symbolic_internal (GtkIconInfo *icon_info,
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gchar *size;
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gchar *file_data, *escaped_file_data;
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gsize file_len;
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SymbolicPixbufCache *symbolic_cache;
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if (use_cache)
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{
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symbolic_cache = symbolic_pixbuf_cache_matches (icon_info->symbolic_pixbuf_cache,
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fg, success_color, warning_color, error_color);
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if (symbolic_cache)
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return symbolic_cache_get_proxy (symbolic_cache, icon_info);
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}
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/* css_fg can't possibly have failed, otherwise
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* that would mean we have a broken style
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*/
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g_return_val_if_fail (fg != NULL, NULL);
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css_fg = gdk_rgba_to_string (fg);
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@ -4338,6 +4475,45 @@ gtk_icon_info_load_symbolic_internal (GtkIconInfo *icon_info,
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error);
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g_object_unref (stream);
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return pixbuf;
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}
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static GdkPixbuf *
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gtk_icon_info_load_symbolic_internal (GtkIconInfo *icon_info,
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const GdkRGBA *fg,
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const GdkRGBA *success_color,
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const GdkRGBA *warning_color,
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const GdkRGBA *error_color,
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gboolean use_cache,
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GError **error)
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{
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GdkPixbuf *pixbuf;
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SymbolicPixbufCache *symbolic_cache;
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char *icon_uri;
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if (use_cache)
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{
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symbolic_cache = symbolic_pixbuf_cache_matches (icon_info->symbolic_pixbuf_cache,
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fg, success_color, warning_color, error_color);
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if (symbolic_cache)
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return symbolic_cache_get_proxy (symbolic_cache, icon_info);
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}
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/* css_fg can't possibly have failed, otherwise
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* that would mean we have a broken style
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*/
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g_return_val_if_fail (fg != NULL, NULL);
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icon_uri = g_file_get_uri (icon_info->icon_file);
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if (g_str_has_suffix (icon_uri, ".symbolic.png"))
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pixbuf = gtk_icon_info_load_symbolic_png (icon_info, fg, success_color, warning_color, error_color, error);
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else
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pixbuf = gtk_icon_info_load_symbolic_svg (icon_info, fg, success_color, warning_color, error_color, error);
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g_free (icon_uri);
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if (pixbuf != NULL)
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{
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GdkPixbuf *icon;
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