1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 2011 Red Hat, Inc.
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/>.
20 #include "gtkcssvalueprivate.h"
21 #include "gtktypebuiltins.h"
22 #include "gtkgradient.h"
23 #include <cairo-gobject.h>
24 #include "gtkprivatetypebuiltins.h"
26 #include "fallback-c89.c"
30 volatile gint ref_count;
41 G_DEFINE_BOXED_TYPE (GtkCssValue, _gtk_css_value, _gtk_css_value_ref, _gtk_css_value_unref)
44 _gtk_css_value_new (GType type)
48 value = g_slice_new0 (GtkCssValue);
57 _gtk_css_value_new_from_gvalue (const GValue *g_value)
62 g_return_val_if_fail (g_value != NULL, NULL);
64 type = G_VALUE_TYPE (g_value);
66 /* Make sure we reuse the int/number singletons */
67 if (type == G_TYPE_INT)
68 value = _gtk_css_value_new_from_int (g_value_get_int (g_value));
69 else if (type == GTK_TYPE_CSS_NUMBER)
70 value = _gtk_css_value_new_from_number (g_value_get_boxed (g_value));
73 value = _gtk_css_value_new (type);
75 if (g_type_is_a (type, G_TYPE_OBJECT))
76 value->u.ptr = g_value_dup_object (g_value);
77 else if (g_type_is_a (type, G_TYPE_BOXED))
78 value->u.ptr = g_value_dup_boxed (g_value);
79 else if (g_type_is_a (type, G_TYPE_INT))
80 value->u.gint = g_value_get_int (g_value);
81 else if (g_type_is_a (type, G_TYPE_UINT))
82 value->u.guint = g_value_get_uint (g_value);
83 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
84 value->u.gint = g_value_get_boolean (g_value);
85 else if (g_type_is_a (type, G_TYPE_ENUM))
86 value->u.gint = g_value_get_enum (g_value);
87 else if (g_type_is_a (type, G_TYPE_FLAGS))
88 value->u.guint = g_value_get_flags (g_value);
89 else if (g_type_is_a (type, G_TYPE_STRING))
90 value->u.ptr = g_value_dup_string (g_value);
91 else if (g_type_is_a (type, G_TYPE_DOUBLE))
92 value->u.dbl = g_value_get_double (g_value);
93 else if (g_type_is_a (type, G_TYPE_FLOAT))
94 value->u.flt = g_value_get_float (g_value);
96 g_assert_not_reached ();
103 _gtk_css_value_new_take_gvalue (GValue *g_value)
108 g_return_val_if_fail (g_value != NULL, NULL);
110 type = G_VALUE_TYPE (g_value);
112 /* Make sure we reuse the int/number singletons */
113 if (type == G_TYPE_INT)
115 value = _gtk_css_value_new_from_int (g_value_get_int (g_value));
116 g_value_unset (g_value);
118 else if (type == GTK_TYPE_CSS_NUMBER)
120 value = _gtk_css_value_new_from_number (g_value_get_boxed (g_value));
121 g_value_unset (g_value);
125 value = _gtk_css_value_new (type);
127 if (g_type_is_a (type, G_TYPE_OBJECT))
128 value->u.ptr = g_value_get_object (g_value);
129 else if (g_type_is_a (type, G_TYPE_BOXED))
130 value->u.ptr = g_value_get_boxed (g_value);
131 else if (g_type_is_a (type, G_TYPE_INT))
132 value->u.gint = g_value_get_int (g_value);
133 else if (g_type_is_a (type, G_TYPE_UINT))
134 value->u.guint = g_value_get_uint (g_value);
135 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
136 value->u.gint = g_value_get_boolean (g_value);
137 else if (g_type_is_a (type, G_TYPE_ENUM))
138 value->u.gint = g_value_get_enum (g_value);
139 else if (g_type_is_a (type, G_TYPE_FLAGS))
140 value->u.guint = g_value_get_flags (g_value);
141 else if (g_type_is_a (type, G_TYPE_STRING))
142 value->u.ptr = g_value_dup_string (g_value);
143 else if (g_type_is_a (type, G_TYPE_DOUBLE))
144 value->u.dbl = g_value_get_double (g_value);
145 else if (g_type_is_a (type, G_TYPE_FLOAT))
146 value->u.flt = g_value_get_float (g_value);
148 g_assert_not_reached ();
155 _gtk_css_value_new_from_int (gint val)
158 static GtkCssValue *singletons[4] = {NULL};
160 if (val >= 0 && val < G_N_ELEMENTS (singletons))
162 if (singletons[val] == NULL)
164 value = _gtk_css_value_new (G_TYPE_INT);
166 singletons[val] = value;
168 return _gtk_css_value_ref (singletons[val]);
171 value = _gtk_css_value_new (G_TYPE_INT);
178 _gtk_css_value_new_take_string (char *string)
182 value = _gtk_css_value_new (G_TYPE_STRING);
183 value->u.ptr = string;
189 _gtk_css_value_new_from_string (const char *string)
193 value = _gtk_css_value_new (G_TYPE_STRING);
194 value->u.ptr = g_strdup (string);
200 g_boxed_copy0 (GType boxed_type,
201 gconstpointer src_boxed)
203 if (src_boxed == NULL)
205 return g_boxed_copy (boxed_type, src_boxed);
209 _gtk_css_value_new_from_border (const GtkBorder *border)
213 value = _gtk_css_value_new (GTK_TYPE_BORDER);
214 value->u.ptr = g_boxed_copy0 (GTK_TYPE_BORDER, border);
220 _gtk_css_value_new_take_pattern (cairo_pattern_t *v)
224 value = _gtk_css_value_new (CAIRO_GOBJECT_TYPE_PATTERN);
231 _gtk_css_value_new_from_pattern (const cairo_pattern_t *v)
235 value = _gtk_css_value_new (CAIRO_GOBJECT_TYPE_PATTERN);
236 value->u.ptr = g_boxed_copy0 (CAIRO_GOBJECT_TYPE_PATTERN, v);
242 _gtk_css_value_new_take_shadow (GtkShadow *v)
246 value = _gtk_css_value_new (GTK_TYPE_SHADOW);
253 _gtk_css_value_new_take_font_description (PangoFontDescription *v)
257 value = _gtk_css_value_new (PANGO_TYPE_FONT_DESCRIPTION);
264 _gtk_css_value_new_take_image (GtkCssImage *v)
268 value = _gtk_css_value_new (GTK_TYPE_CSS_IMAGE);
275 _gtk_css_value_new_from_number (const GtkCssNumber *v)
278 static GtkCssValue *zero_singleton = NULL;
279 static GtkCssValue *px_singletons[5] = {NULL};
281 if (v->unit == GTK_CSS_NUMBER &&
284 if (zero_singleton == NULL)
286 value = _gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
287 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
288 zero_singleton = value;
290 return _gtk_css_value_ref (zero_singleton);
293 if (v->unit == GTK_CSS_PX &&
300 int i = round (v->value);
301 if (px_singletons[i] == NULL)
303 value = _gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
304 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
305 px_singletons[i] = value;
308 return _gtk_css_value_ref (px_singletons[i]);
311 value = _gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
312 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
318 _gtk_css_value_new_from_rgba (const GdkRGBA *v)
322 value = _gtk_css_value_new (GDK_TYPE_RGBA);
323 value->u.ptr = g_boxed_copy0 (GDK_TYPE_RGBA, v);
329 _gtk_css_value_new_from_color (const GdkColor *v)
333 value = _gtk_css_value_new (GDK_TYPE_COLOR);
334 value->u.ptr = g_boxed_copy0 (GDK_TYPE_COLOR, v);
340 _gtk_css_value_new_from_background_size (const GtkCssBackgroundSize *v)
344 value = _gtk_css_value_new (GTK_TYPE_CSS_BACKGROUND_SIZE);
345 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BACKGROUND_SIZE, v);
351 _gtk_css_value_new_from_background_position (const GtkCssBackgroundPosition *v)
355 value = _gtk_css_value_new (GTK_TYPE_CSS_BACKGROUND_POSITION);
356 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BACKGROUND_POSITION, v);
362 _gtk_css_value_new_take_symbolic_color (GtkSymbolicColor *v)
366 value = _gtk_css_value_new (GTK_TYPE_SYMBOLIC_COLOR);
373 _gtk_css_value_ref (GtkCssValue *value)
375 g_return_val_if_fail (value != NULL, NULL);
377 g_atomic_int_add (&value->ref_count, 1);
383 _gtk_css_value_unref (GtkCssValue *value)
390 if (!g_atomic_int_dec_and_test (&value->ref_count))
395 if (g_type_is_a (type, G_TYPE_OBJECT) && value->u.ptr != NULL)
396 g_object_unref (value->u.ptr);
397 else if (g_type_is_a (type, G_TYPE_BOXED) && value->u.ptr != NULL)
398 g_boxed_free (type, value->u.ptr);
399 else if (g_type_is_a (type, G_TYPE_STRING))
400 g_free (value->u.ptr);
402 g_slice_free (GtkCssValue, value);
406 _gtk_css_value_get_content_type (GtkCssValue *value)
412 _gtk_css_value_holds (GtkCssValue *value, GType type)
414 return g_type_is_a (value->type, type);
418 fill_gvalue (GtkCssValue *value,
425 if (g_type_is_a (type, G_TYPE_OBJECT))
426 g_value_set_object (g_value, value->u.ptr);
427 else if (g_type_is_a (type, G_TYPE_BOXED))
428 g_value_set_boxed (g_value, value->u.ptr);
429 else if (g_type_is_a (type, G_TYPE_INT))
430 g_value_set_int (g_value, value->u.gint);
431 else if (g_type_is_a (type, G_TYPE_UINT))
432 g_value_set_uint (g_value, value->u.guint);
433 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
434 g_value_set_boolean (g_value, value->u.gint);
435 else if (g_type_is_a (type, G_TYPE_ENUM))
436 g_value_set_enum (g_value, value->u.gint);
437 else if (g_type_is_a (type, G_TYPE_FLAGS))
438 g_value_set_flags (g_value, value->u.guint);
439 else if (g_type_is_a (type, G_TYPE_STRING))
440 g_value_set_string (g_value, value->u.ptr);
441 else if (g_type_is_a (type, G_TYPE_DOUBLE))
442 g_value_set_double (g_value, value->u.dbl);
443 else if (g_type_is_a (type, G_TYPE_FLOAT))
444 g_value_set_float (g_value, value->u.flt);
446 g_assert_not_reached ();
450 _gtk_css_value_init_gvalue (GtkCssValue *value,
455 g_value_init (g_value, value->type);
456 fill_gvalue (value, g_value);
461 _gtk_css_value_to_gvalue (GtkCssValue *value,
464 if (value->type == G_VALUE_TYPE (g_value))
465 fill_gvalue (value, g_value);
466 else if (g_value_type_transformable (value->type, G_VALUE_TYPE (g_value)))
468 GValue v = G_VALUE_INIT;
469 _gtk_css_value_init_gvalue (value, &v);
470 g_value_transform (&v, g_value);
474 g_warning ("can't convert css value of type `%s' as value of type `%s'",
475 g_type_name (value->type),
476 G_VALUE_TYPE_NAME (g_value));
480 _gtk_css_value_is_special (GtkCssValue *value)
482 return _gtk_css_value_holds (value, GTK_TYPE_CSS_SPECIAL_VALUE);
486 _gtk_css_value_get_special_kind (GtkCssValue *value)
488 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_SPECIAL_VALUE), 0);
489 return value->u.gint;
493 _gtk_css_value_get_number (GtkCssValue *value)
495 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_NUMBER), NULL);
500 _gtk_css_value_get_symbolic_color (GtkCssValue *value)
502 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_SYMBOLIC_COLOR), NULL);
507 _gtk_css_value_get_int (GtkCssValue *value)
509 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_INT), 0);
510 return value->u.gint;
514 _gtk_css_value_get_double (GtkCssValue *value)
516 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_DOUBLE), 0);
521 _gtk_css_value_get_string (GtkCssValue *value)
523 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_STRING), 0);
528 _gtk_css_value_dup_object (GtkCssValue *value)
530 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_OBJECT), NULL);
532 return g_object_ref (value->u.ptr);
537 _gtk_css_value_get_object (GtkCssValue *value)
539 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_OBJECT), NULL);
544 _gtk_css_value_get_boxed (GtkCssValue *value)
546 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_BOXED), NULL);
551 _gtk_css_value_get_strv (GtkCssValue *value)
553 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_STRV), NULL);
558 _gtk_css_value_get_image (GtkCssValue *value)
560 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_IMAGE), NULL);
565 _gtk_css_value_get_border_style (GtkCssValue *value)
567 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_BORDER_STYLE), 0);
568 return value->u.gint;
571 GtkCssBackgroundSize *
572 _gtk_css_value_get_background_size (GtkCssValue *value)
574 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BACKGROUND_SIZE), NULL);
578 GtkCssBackgroundPosition *
579 _gtk_css_value_get_background_position (GtkCssValue *value)
581 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BACKGROUND_POSITION), NULL);
585 GtkCssBorderImageRepeat *
586 _gtk_css_value_get_border_image_repeat (GtkCssValue *value)
588 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BORDER_IMAGE_REPEAT), NULL);
592 GtkCssBorderCornerRadius *
593 _gtk_css_value_get_border_corner_radius (GtkCssValue *value)
595 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS), NULL);
599 PangoFontDescription *
600 _gtk_css_value_get_font_description (GtkCssValue *value)
602 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_FONT_DESCRIPTION), 0);
607 _gtk_css_value_get_pango_style (GtkCssValue *value)
609 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_STYLE), 0);
610 return value->u.gint;
614 _gtk_css_value_get_pango_variant (GtkCssValue *value)
616 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_VARIANT), 0);
617 return value->u.gint;
621 _gtk_css_value_get_pango_weight (GtkCssValue *value)
623 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_WEIGHT), 0);
624 return value->u.gint;
628 _gtk_css_value_get_rgba (GtkCssValue *value)
630 g_return_val_if_fail (_gtk_css_value_holds (value, GDK_TYPE_RGBA), NULL);
635 _gtk_css_value_get_pattern (GtkCssValue *value)
637 g_return_val_if_fail (_gtk_css_value_holds (value, CAIRO_GOBJECT_TYPE_PATTERN), NULL);
642 _gtk_css_value_get_gradient (GtkCssValue *value)
644 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_GRADIENT), NULL);
649 _gtk_css_value_get_shadow (GtkCssValue *value)
651 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_SHADOW), NULL);