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 "gtkcssstylefuncsprivate.h"
22 #include "gtktypebuiltins.h"
23 #include "gtkgradient.h"
24 #include <cairo-gobject.h>
25 #include "gtkprivatetypebuiltins.h"
27 #include "fallback-c89.c"
43 gtk_css_value_default_free (GtkCssValue *value)
45 GType type = value->type;
47 if (g_type_is_a (type, G_TYPE_OBJECT))
49 if (value->u.ptr != NULL)
50 g_object_unref (value->u.ptr);
52 else if (g_type_is_a (type, G_TYPE_BOXED))
54 if (value->u.ptr != NULL)
55 g_boxed_free (type, value->u.ptr);
57 else if (g_type_is_a (type, G_TYPE_STRING))
58 g_free (value->u.ptr);
59 else if (g_type_is_a (type, G_TYPE_INT))
61 else if (g_type_is_a (type, G_TYPE_UINT))
63 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
65 else if (g_type_is_a (type, G_TYPE_ENUM))
67 else if (g_type_is_a (type, G_TYPE_FLAGS))
69 else if (g_type_is_a (type, G_TYPE_DOUBLE))
71 else if (g_type_is_a (type, G_TYPE_FLOAT))
75 g_value_unset (value->u.ptr);
76 g_slice_free (GValue, value->u.ptr);
79 g_slice_free (GtkCssValue, value);
83 gtk_css_value_default_equal (const GtkCssValue *value1,
84 const GtkCssValue *value2)
90 gtk_css_value_default_print (const GtkCssValue *value,
93 GValue g_value = G_VALUE_INIT;
95 _gtk_css_value_init_gvalue (value, &g_value);
96 _gtk_css_style_print_value (&g_value, string);
97 g_value_unset (&g_value);
100 static const GtkCssValueClass GTK_CSS_VALUE_DEFAULT = {
101 gtk_css_value_default_free,
102 gtk_css_value_default_equal,
103 gtk_css_value_default_print
106 G_DEFINE_BOXED_TYPE (GtkCssValue, _gtk_css_value, _gtk_css_value_ref, _gtk_css_value_unref)
109 gtk_css_value_new (GType type)
113 value = _gtk_css_value_new (GtkCssValue, >K_CSS_VALUE_DEFAULT);
121 _gtk_css_value_new_from_gvalue (const GValue *g_value)
126 g_return_val_if_fail (g_value != NULL, NULL);
128 type = G_VALUE_TYPE (g_value);
130 /* Make sure we reuse the int/number singletons */
131 if (type == G_TYPE_INT)
132 value = _gtk_css_value_new_from_int (g_value_get_int (g_value));
133 else if (type == GTK_TYPE_CSS_NUMBER)
134 value = _gtk_css_value_new_from_number (g_value_get_boxed (g_value));
137 value = gtk_css_value_new (type);
139 if (g_type_is_a (type, G_TYPE_OBJECT))
140 value->u.ptr = g_value_dup_object (g_value);
141 else if (g_type_is_a (type, G_TYPE_BOXED))
142 value->u.ptr = g_value_dup_boxed (g_value);
143 else if (g_type_is_a (type, G_TYPE_INT))
144 value->u.gint = g_value_get_int (g_value);
145 else if (g_type_is_a (type, G_TYPE_UINT))
146 value->u.guint = g_value_get_uint (g_value);
147 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
148 value->u.gint = g_value_get_boolean (g_value);
149 else if (g_type_is_a (type, G_TYPE_ENUM))
150 value->u.gint = g_value_get_enum (g_value);
151 else if (g_type_is_a (type, G_TYPE_FLAGS))
152 value->u.guint = g_value_get_flags (g_value);
153 else if (g_type_is_a (type, G_TYPE_STRING))
154 value->u.ptr = g_value_dup_string (g_value);
155 else if (g_type_is_a (type, G_TYPE_DOUBLE))
156 value->u.dbl = g_value_get_double (g_value);
157 else if (g_type_is_a (type, G_TYPE_FLOAT))
158 value->u.flt = g_value_get_float (g_value);
161 value->u.ptr = g_slice_new0 (GValue);
162 g_value_init (value->u.ptr, G_VALUE_TYPE (g_value));
163 g_value_copy (g_value, value->u.ptr);
171 _gtk_css_value_new_from_int (gint val)
174 static GtkCssValue *singletons[4] = {NULL};
176 if (val >= 0 && val < G_N_ELEMENTS (singletons))
178 if (singletons[val] == NULL)
180 value = gtk_css_value_new (G_TYPE_INT);
182 singletons[val] = value;
184 return _gtk_css_value_ref (singletons[val]);
187 value = gtk_css_value_new (G_TYPE_INT);
194 _gtk_css_value_new_from_enum (GType type,
199 g_return_val_if_fail (g_type_is_a (type, G_TYPE_ENUM), NULL);
201 value = gtk_css_value_new (type);
208 _gtk_css_value_new_from_double (double d)
212 value = gtk_css_value_new (G_TYPE_DOUBLE);
219 _gtk_css_value_new_take_string (char *string)
223 value = gtk_css_value_new (G_TYPE_STRING);
224 value->u.ptr = string;
230 _gtk_css_value_new_take_strv (char **strv)
234 value = gtk_css_value_new (G_TYPE_STRV);
241 g_boxed_copy0 (GType boxed_type,
242 gconstpointer src_boxed)
244 if (src_boxed == NULL)
246 return g_boxed_copy (boxed_type, src_boxed);
250 _gtk_css_value_new_from_boxed (GType type,
255 g_return_val_if_fail (g_type_is_a (type, G_TYPE_BOXED), NULL);
257 value = gtk_css_value_new (type);
258 value->u.ptr = g_boxed_copy0 (type, boxed);
264 _gtk_css_value_new_take_pattern (cairo_pattern_t *v)
268 value = gtk_css_value_new (CAIRO_GOBJECT_TYPE_PATTERN);
275 _gtk_css_value_new_take_shadow (GtkShadow *v)
279 value = gtk_css_value_new (GTK_TYPE_SHADOW);
286 _gtk_css_value_new_take_image (GtkCssImage *v)
290 value = gtk_css_value_new (GTK_TYPE_CSS_IMAGE);
297 _gtk_css_value_new_from_theming_engine (GtkThemingEngine *v)
301 value = gtk_css_value_new (GTK_TYPE_THEMING_ENGINE);
302 value->u.ptr = g_object_ref (v);
308 _gtk_css_value_new_take_binding_sets (GPtrArray *array)
312 value = gtk_css_value_new (G_TYPE_PTR_ARRAY);
313 value->u.ptr = array;
319 _gtk_css_value_new_from_number (const GtkCssNumber *v)
322 static GtkCssValue *zero_singleton = NULL;
323 static GtkCssValue *px_singletons[5] = {NULL};
325 if (v->unit == GTK_CSS_NUMBER &&
328 if (zero_singleton == NULL)
330 value = gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
331 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
332 zero_singleton = value;
334 return _gtk_css_value_ref (zero_singleton);
337 if (v->unit == GTK_CSS_PX &&
344 int i = round (v->value);
345 if (px_singletons[i] == NULL)
347 value = gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
348 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
349 px_singletons[i] = value;
352 return _gtk_css_value_ref (px_singletons[i]);
355 value = gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
356 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
362 _gtk_css_value_new_from_rgba (const GdkRGBA *v)
366 value = gtk_css_value_new (GDK_TYPE_RGBA);
367 value->u.ptr = g_boxed_copy0 (GDK_TYPE_RGBA, v);
373 _gtk_css_value_new_from_color (const GdkColor *v)
377 value = gtk_css_value_new (GDK_TYPE_COLOR);
378 value->u.ptr = g_boxed_copy0 (GDK_TYPE_COLOR, v);
384 _gtk_css_value_new_from_background_size (const GtkCssBackgroundSize *v)
388 value = gtk_css_value_new (GTK_TYPE_CSS_BACKGROUND_SIZE);
389 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BACKGROUND_SIZE, v);
395 _gtk_css_value_new_from_background_position (const GtkCssBackgroundPosition *v)
399 value = gtk_css_value_new (GTK_TYPE_CSS_BACKGROUND_POSITION);
400 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BACKGROUND_POSITION, v);
406 _gtk_css_value_new_from_border_corner_radius (const GtkCssBorderCornerRadius *v)
410 value = gtk_css_value_new (GTK_TYPE_CSS_BORDER_CORNER_RADIUS);
411 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BORDER_CORNER_RADIUS, v);
417 _gtk_css_value_new_from_border_image_repeat (const GtkCssBorderImageRepeat *v)
421 value = gtk_css_value_new (GTK_TYPE_CSS_BORDER_IMAGE_REPEAT);
422 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BORDER_IMAGE_REPEAT, v);
428 _gtk_css_value_new_from_border_style (GtkBorderStyle style)
432 value = gtk_css_value_new (GTK_TYPE_BORDER_STYLE);
433 value->u.gint = style;
439 _gtk_css_value_new_take_symbolic_color (GtkSymbolicColor *v)
443 value = gtk_css_value_new (GTK_TYPE_SYMBOLIC_COLOR);
450 _gtk_css_value_alloc (const GtkCssValueClass *klass,
455 value = g_slice_alloc0 (size);
457 value->class = klass;
458 value->ref_count = 1;
464 _gtk_css_value_ref (GtkCssValue *value)
466 g_return_val_if_fail (value != NULL, NULL);
468 g_atomic_int_add (&value->ref_count, 1);
474 _gtk_css_value_unref (GtkCssValue *value)
479 if (!g_atomic_int_dec_and_test (&value->ref_count))
482 value->class->free (value);
486 _gtk_css_value_equal (const GtkCssValue *value1,
487 const GtkCssValue *value2)
489 g_return_val_if_fail (value1 != NULL, FALSE);
490 g_return_val_if_fail (value2 != NULL, FALSE);
492 if (value1->class != value2->class)
495 return value1->class->equal (value1, value2);
499 _gtk_css_value_print (const GtkCssValue *value,
502 g_return_if_fail (value != NULL);
503 g_return_if_fail (string != NULL);
505 value->class->print (value, string);
509 _gtk_css_value_get_content_type (const GtkCssValue *value)
515 _gtk_css_value_holds (const GtkCssValue *value, GType type)
517 return g_type_is_a (value->type, type);
521 fill_gvalue (const GtkCssValue *value,
528 if (g_type_is_a (type, G_TYPE_OBJECT))
529 g_value_set_object (g_value, value->u.ptr);
530 else if (g_type_is_a (type, G_TYPE_BOXED))
531 g_value_set_boxed (g_value, value->u.ptr);
532 else if (g_type_is_a (type, G_TYPE_INT))
533 g_value_set_int (g_value, value->u.gint);
534 else if (g_type_is_a (type, G_TYPE_UINT))
535 g_value_set_uint (g_value, value->u.guint);
536 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
537 g_value_set_boolean (g_value, value->u.gint);
538 else if (g_type_is_a (type, G_TYPE_ENUM))
539 g_value_set_enum (g_value, value->u.gint);
540 else if (g_type_is_a (type, G_TYPE_FLAGS))
541 g_value_set_flags (g_value, value->u.guint);
542 else if (g_type_is_a (type, G_TYPE_STRING))
543 g_value_set_string (g_value, value->u.ptr);
544 else if (g_type_is_a (type, G_TYPE_DOUBLE))
545 g_value_set_double (g_value, value->u.dbl);
546 else if (g_type_is_a (type, G_TYPE_FLOAT))
547 g_value_set_float (g_value, value->u.flt);
549 g_value_copy (value->u.ptr, g_value);
553 _gtk_css_value_init_gvalue (const GtkCssValue *value,
558 g_value_init (g_value, value->type);
559 fill_gvalue (value, g_value);
564 _gtk_css_value_get_number (const GtkCssValue *value)
566 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_NUMBER), NULL);
571 _gtk_css_value_get_symbolic_color (const GtkCssValue *value)
573 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_SYMBOLIC_COLOR), NULL);
578 _gtk_css_value_get_int (const GtkCssValue *value)
580 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_INT), 0);
581 return value->u.gint;
585 _gtk_css_value_get_enum (const GtkCssValue *value)
587 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_ENUM), 0);
588 return value->u.gint;
592 _gtk_css_value_get_double (const GtkCssValue *value)
594 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_DOUBLE), 0);
599 _gtk_css_value_get_string (const GtkCssValue *value)
601 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_STRING), 0);
606 _gtk_css_value_dup_object (const GtkCssValue *value)
608 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_OBJECT), NULL);
610 return g_object_ref (value->u.ptr);
615 _gtk_css_value_get_object (const GtkCssValue *value)
617 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_OBJECT), NULL);
622 _gtk_css_value_get_boxed (const GtkCssValue *value)
624 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_BOXED), NULL);
629 _gtk_css_value_get_strv (const GtkCssValue *value)
631 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_STRV), NULL);
636 _gtk_css_value_get_image (const GtkCssValue *value)
638 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_IMAGE), NULL);
643 _gtk_css_value_get_border_style (const GtkCssValue *value)
645 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_BORDER_STYLE), 0);
646 return value->u.gint;
649 const GtkCssBackgroundSize *
650 _gtk_css_value_get_background_size (const GtkCssValue *value)
652 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BACKGROUND_SIZE), NULL);
656 const GtkCssBackgroundPosition *
657 _gtk_css_value_get_background_position (const GtkCssValue *value)
659 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BACKGROUND_POSITION), NULL);
663 const GtkCssBorderImageRepeat *
664 _gtk_css_value_get_border_image_repeat (const GtkCssValue *value)
666 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BORDER_IMAGE_REPEAT), NULL);
670 const GtkCssBorderCornerRadius *
671 _gtk_css_value_get_border_corner_radius (const GtkCssValue *value)
673 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS), NULL);
678 _gtk_css_value_get_pango_style (const GtkCssValue *value)
680 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_STYLE), 0);
681 return value->u.gint;
685 _gtk_css_value_get_pango_variant (const GtkCssValue *value)
687 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_VARIANT), 0);
688 return value->u.gint;
692 _gtk_css_value_get_pango_weight (const GtkCssValue *value)
694 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_WEIGHT), 0);
695 return value->u.gint;
699 _gtk_css_value_get_rgba (const GtkCssValue *value)
701 g_return_val_if_fail (_gtk_css_value_holds (value, GDK_TYPE_RGBA), NULL);
706 _gtk_css_value_get_pattern (const GtkCssValue *value)
708 g_return_val_if_fail (_gtk_css_value_holds (value, CAIRO_GOBJECT_TYPE_PATTERN), NULL);
713 _gtk_css_value_get_gradient (const GtkCssValue *value)
715 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_GRADIENT), NULL);
720 _gtk_css_value_get_shadow (const GtkCssValue *value)
722 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_SHADOW), NULL);