1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
19 #include "gtkcssrgbavalueprivate.h"
20 #include "gtkcssstylepropertyprivate.h"
21 #include "gtkstylepropertyprivate.h"
22 #include "gtksymboliccolorprivate.h"
23 #include "gtkstyleproperties.h"
25 #include "gtkwin32themeprivate.h"
28 * SECTION:gtksymboliccolor
29 * @Short_description: Symbolic colors
30 * @Title: GtkSymbolicColor
32 * GtkSymbolicColor is a boxed type that represents a symbolic color.
33 * It is the result of parsing a
34 * <link linkend="gtkcssprovider-symbolic-colors">color expression</link>.
35 * To obtain the color represented by a GtkSymbolicColor, it has to
36 * be resolved with gtk_symbolic_color_resolve(), which replaces all
37 * symbolic color references by the colors they refer to (in a given
38 * context) and evaluates mix, shade and other expressions, resulting
39 * in a #GdkRGBA value.
41 * It is not normally necessary to deal directly with #GtkSymbolicColors,
42 * since they are mostly used behind the scenes by #GtkStyleContext and
46 G_DEFINE_BOXED_TYPE (GtkSymbolicColor, gtk_symbolic_color,
47 gtk_symbolic_color_ref, gtk_symbolic_color_unref)
57 COLOR_TYPE_CURRENT_COLOR
60 struct _GtkSymbolicColor
64 GtkCssValue *last_value;
72 GtkSymbolicColor *color;
78 GtkSymbolicColor *color1;
79 GtkSymbolicColor *color2;
92 gtk_css_value_symbolic_free (GtkCssValue *value)
94 GtkSymbolicColor *color = (GtkSymbolicColor *) value;
96 _gtk_css_value_unref (color->last_value);
100 g_free (color->name);
102 case COLOR_TYPE_SHADE:
103 gtk_symbolic_color_unref (color->shade.color);
105 case COLOR_TYPE_ALPHA:
106 gtk_symbolic_color_unref (color->alpha.color);
109 gtk_symbolic_color_unref (color->mix.color1);
110 gtk_symbolic_color_unref (color->mix.color2);
112 case COLOR_TYPE_WIN32:
113 g_free (color->win32.theme_class);
119 g_slice_free (GtkSymbolicColor, color);
123 gtk_css_value_symbolic_get_fallback (guint property_id,
124 GtkStyleProviderPrivate *provider,
125 GtkCssComputedValues *values,
126 GtkCssComputedValues *parent_values)
128 static const GdkRGBA transparent = { 0, 0, 0, 0 };
132 case GTK_CSS_PROPERTY_BACKGROUND_IMAGE:
133 case GTK_CSS_PROPERTY_BORDER_IMAGE_SOURCE:
134 case GTK_CSS_PROPERTY_TEXT_SHADOW:
135 case GTK_CSS_PROPERTY_ICON_SHADOW:
136 case GTK_CSS_PROPERTY_BOX_SHADOW:
137 return _gtk_css_rgba_value_new_from_rgba (&transparent);
138 case GTK_CSS_PROPERTY_COLOR:
139 case GTK_CSS_PROPERTY_BACKGROUND_COLOR:
140 case GTK_CSS_PROPERTY_BORDER_TOP_COLOR:
141 case GTK_CSS_PROPERTY_BORDER_RIGHT_COLOR:
142 case GTK_CSS_PROPERTY_BORDER_BOTTOM_COLOR:
143 case GTK_CSS_PROPERTY_BORDER_LEFT_COLOR:
144 case GTK_CSS_PROPERTY_OUTLINE_COLOR:
145 return _gtk_css_value_compute (_gtk_css_style_property_get_initial_value (_gtk_css_style_property_lookup_by_id (property_id)),
152 if (property_id < GTK_CSS_PROPERTY_N_PROPERTIES)
153 g_warning ("No fallback color defined for property '%s'",
154 _gtk_style_property_get_name (GTK_STYLE_PROPERTY (_gtk_css_style_property_lookup_by_id (property_id))));
155 return _gtk_css_rgba_value_new_from_rgba (&transparent);
160 gtk_css_value_symbolic_compute (GtkCssValue *value,
162 GtkStyleProviderPrivate *provider,
163 GtkCssComputedValues *values,
164 GtkCssComputedValues *parent_values,
165 GtkCssDependencies *dependencies)
167 GtkCssValue *resolved, *current;
168 GtkCssDependencies current_deps;
170 /* The computed value of the ‘currentColor’ keyword is the computed
171 * value of the ‘color’ property. If the ‘currentColor’ keyword is
172 * set on the ‘color’ property itself, it is treated as ‘color: inherit’.
174 if (property_id == GTK_CSS_PROPERTY_COLOR)
178 current = _gtk_css_computed_values_get_value (parent_values, GTK_CSS_PROPERTY_COLOR);
179 current_deps = GTK_CSS_EQUALS_PARENT;
183 current = _gtk_css_style_property_get_initial_value (_gtk_css_style_property_lookup_by_id (GTK_CSS_PROPERTY_COLOR));
189 current = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_COLOR);
190 current_deps = GTK_CSS_DEPENDS_ON_COLOR;
193 resolved = _gtk_symbolic_color_resolve_full ((GtkSymbolicColor *) value,
199 if (resolved == NULL)
200 return gtk_css_value_symbolic_get_fallback (property_id, provider, values, parent_values);
206 gtk_css_value_symbolic_equal (const GtkCssValue *value1,
207 const GtkCssValue *value2)
209 GtkSymbolicColor *color1 = (GtkSymbolicColor *) value1;
210 GtkSymbolicColor *color2 = (GtkSymbolicColor *) value2;
212 if (color1->type != color2->type)
215 switch (color1->type)
217 case COLOR_TYPE_LITERAL:
218 return _gtk_css_value_equal (color1->last_value, color2->last_value);
219 case COLOR_TYPE_NAME:
220 return g_str_equal (color1->name, color2->name);
221 case COLOR_TYPE_SHADE:
222 return color1->shade.factor == color2->shade.factor &&
223 _gtk_css_value_equal ((GtkCssValue *) color1->shade.color,
224 (GtkCssValue *) color2->shade.color);
225 case COLOR_TYPE_ALPHA:
226 return color1->alpha.factor == color2->alpha.factor &&
227 _gtk_css_value_equal ((GtkCssValue *) color1->alpha.color,
228 (GtkCssValue *) color2->alpha.color);
230 return color1->mix.factor == color2->mix.factor &&
231 _gtk_css_value_equal ((GtkCssValue *) color1->mix.color1,
232 (GtkCssValue *) color2->mix.color1) &&
233 _gtk_css_value_equal ((GtkCssValue *) color1->mix.color2,
234 (GtkCssValue *) color2->mix.color2);
235 case COLOR_TYPE_WIN32:
236 return g_str_equal (color1->win32.theme_class, color2->win32.theme_class) &&
237 color1->win32.id == color2->win32.id;
238 case COLOR_TYPE_CURRENT_COLOR:
241 g_assert_not_reached ();
247 gtk_css_value_symbolic_transition (GtkCssValue *start,
256 gtk_css_value_symbolic_print (const GtkCssValue *value,
259 GtkSymbolicColor *color = (GtkSymbolicColor *) value;
262 s = gtk_symbolic_color_to_string (color);
263 g_string_append (string, s);
267 static const GtkCssValueClass GTK_CSS_VALUE_SYMBOLIC = {
268 gtk_css_value_symbolic_free,
269 gtk_css_value_symbolic_compute,
270 gtk_css_value_symbolic_equal,
271 gtk_css_value_symbolic_transition,
272 gtk_css_value_symbolic_print
276 * gtk_symbolic_color_new_literal:
279 * Creates a symbolic color pointing to a literal color.
281 * Returns: a newly created #GtkSymbolicColor
286 gtk_symbolic_color_new_literal (const GdkRGBA *color)
288 GtkSymbolicColor *symbolic_color;
290 g_return_val_if_fail (color != NULL, NULL);
292 symbolic_color = _gtk_css_value_new (GtkSymbolicColor, >K_CSS_VALUE_SYMBOLIC);
293 symbolic_color->type = COLOR_TYPE_LITERAL;
294 symbolic_color->last_value = _gtk_css_rgba_value_new_from_rgba (color);
296 return symbolic_color;
300 * gtk_symbolic_color_new_name:
303 * Creates a symbolic color pointing to an unresolved named
304 * color. See gtk_style_context_lookup_color() and
305 * gtk_style_properties_lookup_color().
307 * Returns: a newly created #GtkSymbolicColor
312 gtk_symbolic_color_new_name (const gchar *name)
314 GtkSymbolicColor *symbolic_color;
316 g_return_val_if_fail (name != NULL, NULL);
318 symbolic_color = _gtk_css_value_new (GtkSymbolicColor, >K_CSS_VALUE_SYMBOLIC);
319 symbolic_color->type = COLOR_TYPE_NAME;
320 symbolic_color->name = g_strdup (name);
322 return symbolic_color;
326 * gtk_symbolic_color_new_shade: (constructor)
327 * @color: another #GtkSymbolicColor
328 * @factor: shading factor to apply to @color
330 * Creates a symbolic color defined as a shade of
331 * another color. A factor > 1.0 would resolve to
332 * a brighter color, while < 1.0 would resolve to
335 * Returns: A newly created #GtkSymbolicColor
340 gtk_symbolic_color_new_shade (GtkSymbolicColor *color,
343 GtkSymbolicColor *symbolic_color;
345 g_return_val_if_fail (color != NULL, NULL);
347 symbolic_color = _gtk_css_value_new (GtkSymbolicColor, >K_CSS_VALUE_SYMBOLIC);
348 symbolic_color->type = COLOR_TYPE_SHADE;
349 symbolic_color->shade.color = gtk_symbolic_color_ref (color);
350 symbolic_color->shade.factor = factor;
352 return symbolic_color;
356 * gtk_symbolic_color_new_alpha: (constructor)
357 * @color: another #GtkSymbolicColor
358 * @factor: factor to apply to @color alpha
360 * Creates a symbolic color by modifying the relative alpha
361 * value of @color. A factor < 1.0 would resolve to a more
362 * transparent color, while > 1.0 would resolve to a more
365 * Returns: A newly created #GtkSymbolicColor
370 gtk_symbolic_color_new_alpha (GtkSymbolicColor *color,
373 GtkSymbolicColor *symbolic_color;
375 g_return_val_if_fail (color != NULL, NULL);
377 symbolic_color = _gtk_css_value_new (GtkSymbolicColor, >K_CSS_VALUE_SYMBOLIC);
378 symbolic_color->type = COLOR_TYPE_ALPHA;
379 symbolic_color->alpha.color = gtk_symbolic_color_ref (color);
380 symbolic_color->alpha.factor = factor;
382 return symbolic_color;
386 * gtk_symbolic_color_new_mix: (constructor)
387 * @color1: color to mix
388 * @color2: another color to mix
389 * @factor: mix factor
391 * Creates a symbolic color defined as a mix of another
392 * two colors. a mix factor of 0 would resolve to @color1,
393 * while a factor of 1 would resolve to @color2.
395 * Returns: A newly created #GtkSymbolicColor
400 gtk_symbolic_color_new_mix (GtkSymbolicColor *color1,
401 GtkSymbolicColor *color2,
404 GtkSymbolicColor *symbolic_color;
406 g_return_val_if_fail (color1 != NULL, NULL);
407 g_return_val_if_fail (color1 != NULL, NULL);
409 symbolic_color = _gtk_css_value_new (GtkSymbolicColor, >K_CSS_VALUE_SYMBOLIC);
410 symbolic_color->type = COLOR_TYPE_MIX;
411 symbolic_color->mix.color1 = gtk_symbolic_color_ref (color1);
412 symbolic_color->mix.color2 = gtk_symbolic_color_ref (color2);
413 symbolic_color->mix.factor = factor;
415 return symbolic_color;
419 * gtk_symbolic_color_new_win32: (constructor)
420 * @theme_class: The theme class to pull color from
423 * Creates a symbolic color based on the current win32
426 * Note that while this call is available on all platforms
427 * the actual value returned is not reliable on non-win32
430 * Returns: A newly created #GtkSymbolicColor
435 gtk_symbolic_color_new_win32 (const gchar *theme_class,
438 GtkSymbolicColor *symbolic_color;
440 g_return_val_if_fail (theme_class != NULL, NULL);
442 symbolic_color = _gtk_css_value_new (GtkSymbolicColor, >K_CSS_VALUE_SYMBOLIC);
443 symbolic_color->type = COLOR_TYPE_WIN32;
444 symbolic_color->win32.theme_class = g_strdup (theme_class);
445 symbolic_color->win32.id = id;
447 return symbolic_color;
451 * _gtk_symbolic_color_get_current_color:
453 * Gets the color representing the CSS 'currentColor' keyword.
454 * This color will resolve to the color set for the color property.
456 * Returns: (transfer none): The singleton representing the
457 * 'currentColor' keyword
460 _gtk_symbolic_color_get_current_color (void)
462 static GtkSymbolicColor *current_color = NULL;
464 if (G_UNLIKELY (current_color == NULL))
466 current_color = _gtk_css_value_new (GtkSymbolicColor, >K_CSS_VALUE_SYMBOLIC);
467 current_color->type = COLOR_TYPE_CURRENT_COLOR;
470 return current_color;
474 * gtk_symbolic_color_ref:
475 * @color: a #GtkSymbolicColor
477 * Increases the reference count of @color
479 * Returns: the same @color
484 gtk_symbolic_color_ref (GtkSymbolicColor *color)
486 g_return_val_if_fail (color != NULL, NULL);
488 _gtk_css_value_ref ((GtkCssValue *) color);
494 * gtk_symbolic_color_unref:
495 * @color: a #GtkSymbolicColor
497 * Decreases the reference count of @color, freeing its memory if the
498 * reference count reaches 0.
503 gtk_symbolic_color_unref (GtkSymbolicColor *color)
505 g_return_if_fail (color != NULL);
507 _gtk_css_value_unref ((GtkCssValue *) color);
511 rgb_to_hls (gdouble *r,
559 s = (max - min) / (max + min);
561 s = (max - min) / (2 - max - min);
565 h = (green - blue) / delta;
566 else if (green == max)
567 h = 2 + (blue - red) / delta;
568 else if (blue == max)
569 h = 4 + (red - green) / delta;
582 hls_to_rgb (gdouble *h,
595 if (lightness <= 0.5)
596 m2 = lightness * (1 + saturation);
598 m2 = lightness + saturation - lightness * saturation;
599 m1 = 2 * lightness - m2;
616 r = m1 + (m2 - m1) * hue / 60;
620 r = m1 + (m2 - m1) * (240 - hue) / 60;
631 g = m1 + (m2 - m1) * hue / 60;
635 g = m1 + (m2 - m1) * (240 - hue) / 60;
646 b = m1 + (m2 - m1) * hue / 60;
650 b = m1 + (m2 - m1) * (240 - hue) / 60;
661 _shade_color (GdkRGBA *color,
667 rgb_to_hls (&temp.red, &temp.green, &temp.blue);
669 temp.green *= factor;
670 if (temp.green > 1.0)
672 else if (temp.green < 0.0)
678 else if (temp.blue < 0.0)
681 hls_to_rgb (&temp.red, &temp.green, &temp.blue);
686 * gtk_symbolic_color_resolve:
687 * @color: a #GtkSymbolicColor
688 * @props: (allow-none): #GtkStyleProperties to use when resolving
689 * named colors, or %NULL
690 * @resolved_color: (out): return location for the resolved color
692 * If @color is resolvable, @resolved_color will be filled in
693 * with the resolved color, and %TRUE will be returned. Generally,
694 * if @color can't be resolved, it is due to it being defined on
695 * top of a named color that doesn't exist in @props.
697 * When @props is %NULL, resolving of named colors will fail, so if
698 * your @color is or references such a color, this function will
701 * Returns: %TRUE if the color has been resolved
706 gtk_symbolic_color_resolve (GtkSymbolicColor *color,
707 GtkStyleProperties *props,
708 GdkRGBA *resolved_color)
710 GdkRGBA pink = { 1.0, 0.5, 0.5, 1.0 };
711 GtkCssValue *v, *current;
713 g_return_val_if_fail (color != NULL, FALSE);
714 g_return_val_if_fail (resolved_color != NULL, FALSE);
715 g_return_val_if_fail (props == NULL || GTK_IS_STYLE_PROPERTIES (props), FALSE);
717 current = _gtk_css_rgba_value_new_from_rgba (&pink);
718 v =_gtk_symbolic_color_resolve_full (color,
719 GTK_STYLE_PROVIDER_PRIVATE (props),
723 _gtk_css_value_unref (current);
727 *resolved_color = *_gtk_css_rgba_value_get_rgba (v);
728 _gtk_css_value_unref (v);
733 _gtk_symbolic_color_resolve_full (GtkSymbolicColor *color,
734 GtkStyleProviderPrivate *provider,
735 GtkCssValue *current,
736 GtkCssDependencies current_deps,
737 GtkCssDependencies *dependencies)
739 GtkCssDependencies unused;
742 g_return_val_if_fail (color != NULL, FALSE);
743 g_return_val_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider), FALSE);
744 g_return_val_if_fail (current != NULL, FALSE);
746 if (dependencies == NULL)
747 dependencies = &unused;
753 case COLOR_TYPE_LITERAL:
754 return _gtk_css_value_ref (color->last_value);
755 case COLOR_TYPE_NAME:
757 GtkSymbolicColor *named_color;
759 named_color = _gtk_style_provider_private_get_color (provider, color->name);
764 return _gtk_symbolic_color_resolve_full (named_color, provider, current, current_deps, dependencies);
768 case COLOR_TYPE_SHADE:
773 val = _gtk_symbolic_color_resolve_full (color->shade.color, provider, current, current_deps, dependencies);
777 *dependencies = _gtk_css_dependencies_union (*dependencies, 0);
778 shade = *_gtk_css_rgba_value_get_rgba (val);
779 _shade_color (&shade, color->shade.factor);
781 _gtk_css_value_unref (val);
783 value = _gtk_css_rgba_value_new_from_rgba (&shade);
787 case COLOR_TYPE_ALPHA:
792 val = _gtk_symbolic_color_resolve_full (color->alpha.color, provider, current, current_deps, dependencies);
796 *dependencies = _gtk_css_dependencies_union (*dependencies, 0);
797 alpha = *_gtk_css_rgba_value_get_rgba (val);
798 alpha.alpha = CLAMP (alpha.alpha * color->alpha.factor, 0, 1);
800 _gtk_css_value_unref (val);
802 value = _gtk_css_rgba_value_new_from_rgba (&alpha);
809 GdkRGBA color1, color2, res;
810 GtkCssDependencies dep1, dep2;
812 val = _gtk_symbolic_color_resolve_full (color->mix.color1, provider, current, current_deps, &dep1);
815 color1 = *_gtk_css_rgba_value_get_rgba (val);
816 _gtk_css_value_unref (val);
818 val = _gtk_symbolic_color_resolve_full (color->mix.color2, provider, current, current_deps, &dep2);
821 color2 = *_gtk_css_rgba_value_get_rgba (val);
822 _gtk_css_value_unref (val);
824 *dependencies = _gtk_css_dependencies_union (dep1, dep2);
825 res.red = CLAMP (color1.red + ((color2.red - color1.red) * color->mix.factor), 0, 1);
826 res.green = CLAMP (color1.green + ((color2.green - color1.green) * color->mix.factor), 0, 1);
827 res.blue = CLAMP (color1.blue + ((color2.blue - color1.blue) * color->mix.factor), 0, 1);
828 res.alpha = CLAMP (color1.alpha + ((color2.alpha - color1.alpha) * color->mix.factor), 0, 1);
830 value =_gtk_css_rgba_value_new_from_rgba (&res);
834 case COLOR_TYPE_WIN32:
838 if (!_gtk_win32_theme_color_resolve (color->win32.theme_class,
843 value = _gtk_css_rgba_value_new_from_rgba (&res);
847 case COLOR_TYPE_CURRENT_COLOR:
850 *dependencies = current_deps;
851 return _gtk_css_value_ref (current);
859 g_assert_not_reached ();
864 if (color->last_value != NULL &&
865 _gtk_css_value_equal (color->last_value, value))
867 _gtk_css_value_unref (value);
868 value = _gtk_css_value_ref (color->last_value);
872 if (color->last_value != NULL)
873 _gtk_css_value_unref (color->last_value);
874 color->last_value = _gtk_css_value_ref (value);
878 _gtk_css_rgba_value_get_rgba (value);
883 * gtk_symbolic_color_to_string:
884 * @color: color to convert to a string
886 * Converts the given @color to a string representation. This is useful
887 * both for debugging and for serialization of strings. The format of
888 * the string may change between different versions of GTK, but it is
889 * guaranteed that the GTK css parser is able to read the string and
890 * create the same symbolic color from it.
892 * Returns: a new string representing @color
895 gtk_symbolic_color_to_string (GtkSymbolicColor *color)
899 g_return_val_if_fail (color != NULL, NULL);
903 case COLOR_TYPE_LITERAL:
904 s = gdk_rgba_to_string (_gtk_css_rgba_value_get_rgba (color->last_value));
906 case COLOR_TYPE_NAME:
907 s = g_strconcat ("@", color->name, NULL);
909 case COLOR_TYPE_SHADE:
911 char *color_string = gtk_symbolic_color_to_string (color->shade.color);
912 char factor[G_ASCII_DTOSTR_BUF_SIZE];
914 g_ascii_dtostr (factor, sizeof (factor), color->shade.factor);
915 s = g_strdup_printf ("shade (%s, %s)", color_string, factor);
916 g_free (color_string);
919 case COLOR_TYPE_ALPHA:
921 char *color_string = gtk_symbolic_color_to_string (color->shade.color);
922 char factor[G_ASCII_DTOSTR_BUF_SIZE];
924 g_ascii_dtostr (factor, sizeof (factor), color->alpha.factor);
925 s = g_strdup_printf ("alpha (%s, %s)", color_string, factor);
926 g_free (color_string);
931 char *color_string1 = gtk_symbolic_color_to_string (color->mix.color1);
932 char *color_string2 = gtk_symbolic_color_to_string (color->mix.color2);
933 char factor[G_ASCII_DTOSTR_BUF_SIZE];
935 g_ascii_dtostr (factor, sizeof (factor), color->mix.factor);
936 s = g_strdup_printf ("mix (%s, %s, %s)", color_string1, color_string2, factor);
937 g_free (color_string1);
938 g_free (color_string2);
941 case COLOR_TYPE_WIN32:
943 s = g_strdup_printf (GTK_WIN32_THEME_SYMBOLIC_COLOR_NAME"(%s, %d)",
944 color->win32.theme_class, color->win32.id);
947 case COLOR_TYPE_CURRENT_COLOR:
948 s = g_strdup ("currentColor");
951 g_assert_not_reached ();
968 static GtkSymbolicColor * gtk_css_parser_read_symbolic_color (GtkCssParser *parser);
970 static GtkSymbolicColor *
971 gtk_css_parser_read_symbolic_color_function (GtkCssParser *parser,
972 ColorParseType color)
974 GtkSymbolicColor *symbolic;
975 GtkSymbolicColor *child1, *child2;
978 if (!_gtk_css_parser_try (parser, "(", TRUE))
980 _gtk_css_parser_error (parser, "Missing opening bracket in color definition");
984 if (color == COLOR_RGB || color == COLOR_RGBA)
990 for (i = 0; i < 3; i++)
992 if (i > 0 && !_gtk_css_parser_try (parser, ",", TRUE))
994 _gtk_css_parser_error (parser, "Expected ',' in color definition");
998 if (!_gtk_css_parser_try_double (parser, &tmp))
1000 _gtk_css_parser_error (parser, "Invalid number for color value");
1003 if (_gtk_css_parser_try (parser, "%", TRUE))
1014 g_assert_not_reached ();
1017 if (color == COLOR_RGBA)
1019 if (i > 0 && !_gtk_css_parser_try (parser, ",", TRUE))
1021 _gtk_css_parser_error (parser, "Expected ',' in color definition");
1025 if (!_gtk_css_parser_try_double (parser, &rgba.alpha))
1027 _gtk_css_parser_error (parser, "Invalid number for alpha value");
1034 symbolic = gtk_symbolic_color_new_literal (&rgba);
1036 else if (color == COLOR_WIN32)
1038 symbolic = _gtk_win32_theme_color_parse (parser);
1039 if (symbolic == NULL)
1044 child1 = gtk_css_parser_read_symbolic_color (parser);
1048 if (color == COLOR_MIX)
1050 if (!_gtk_css_parser_try (parser, ",", TRUE))
1052 _gtk_css_parser_error (parser, "Expected ',' in color definition");
1053 gtk_symbolic_color_unref (child1);
1057 child2 = gtk_css_parser_read_symbolic_color (parser);
1060 gtk_symbolic_color_unref (child1);
1067 if (color == COLOR_LIGHTER)
1069 else if (color == COLOR_DARKER)
1073 if (!_gtk_css_parser_try (parser, ",", TRUE))
1075 _gtk_css_parser_error (parser, "Expected ',' in color definition");
1076 gtk_symbolic_color_unref (child1);
1078 gtk_symbolic_color_unref (child2);
1082 if (!_gtk_css_parser_try_double (parser, &value))
1084 _gtk_css_parser_error (parser, "Expected number in color definition");
1085 gtk_symbolic_color_unref (child1);
1087 gtk_symbolic_color_unref (child2);
1097 symbolic = gtk_symbolic_color_new_shade (child1, value);
1100 symbolic = gtk_symbolic_color_new_alpha (child1, value);
1103 symbolic = gtk_symbolic_color_new_mix (child1, child2, value);
1106 g_assert_not_reached ();
1110 gtk_symbolic_color_unref (child1);
1112 gtk_symbolic_color_unref (child2);
1115 if (!_gtk_css_parser_try (parser, ")", TRUE))
1117 _gtk_css_parser_error (parser, "Expected ')' in color definition");
1118 gtk_symbolic_color_unref (symbolic);
1125 static GtkSymbolicColor *
1126 gtk_css_parser_read_symbolic_color (GtkCssParser *parser)
1128 GtkSymbolicColor *symbolic;
1131 const char *names[] = {"rgba", "rgb", "lighter", "darker", "shade", "alpha", "mix",
1132 GTK_WIN32_THEME_SYMBOLIC_COLOR_NAME};
1135 if (_gtk_css_parser_try (parser, "currentColor", TRUE))
1136 return gtk_symbolic_color_ref (_gtk_symbolic_color_get_current_color ());
1138 if (_gtk_css_parser_try (parser, "transparent", TRUE))
1140 GdkRGBA transparent = { 0, 0, 0, 0 };
1142 return gtk_symbolic_color_new_literal (&transparent);
1145 if (_gtk_css_parser_try (parser, "@", FALSE))
1147 name = _gtk_css_parser_try_name (parser, TRUE);
1151 symbolic = gtk_symbolic_color_new_name (name);
1155 _gtk_css_parser_error (parser, "'%s' is not a valid symbolic color name", name);
1163 for (color = 0; color < G_N_ELEMENTS (names); color++)
1165 if (_gtk_css_parser_try (parser, names[color], TRUE))
1169 if (color < G_N_ELEMENTS (names))
1170 return gtk_css_parser_read_symbolic_color_function (parser, color);
1172 if (_gtk_css_parser_try_hash_color (parser, &rgba))
1173 return gtk_symbolic_color_new_literal (&rgba);
1175 name = _gtk_css_parser_try_name (parser, TRUE);
1178 if (gdk_rgba_parse (&rgba, name))
1180 symbolic = gtk_symbolic_color_new_literal (&rgba);
1184 _gtk_css_parser_error (parser, "'%s' is not a valid color name", name);
1191 _gtk_css_parser_error (parser, "Not a color definition");
1196 _gtk_css_symbolic_value_new (GtkCssParser *parser)
1198 g_return_val_if_fail (parser != NULL, NULL);
1200 return _gtk_css_symbolic_value_new_take_symbolic_color (gtk_css_parser_read_symbolic_color (parser));