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_print (const GtkCssValue *value,
86 GValue g_value = G_VALUE_INIT;
88 _gtk_css_value_init_gvalue (value, &g_value);
89 _gtk_css_style_print_value (&g_value, string);
90 g_value_unset (&g_value);
93 static const GtkCssValueClass GTK_CSS_VALUE_DEFAULT = {
94 gtk_css_value_default_free,
95 gtk_css_value_default_print
98 G_DEFINE_BOXED_TYPE (GtkCssValue, _gtk_css_value, _gtk_css_value_ref, _gtk_css_value_unref)
101 gtk_css_value_new (GType type)
105 value = _gtk_css_value_new (GtkCssValue, >K_CSS_VALUE_DEFAULT);
113 _gtk_css_value_new_from_gvalue (const GValue *g_value)
118 g_return_val_if_fail (g_value != NULL, NULL);
120 type = G_VALUE_TYPE (g_value);
122 /* Make sure we reuse the int/number singletons */
123 if (type == G_TYPE_INT)
124 value = _gtk_css_value_new_from_int (g_value_get_int (g_value));
125 else if (type == GTK_TYPE_CSS_NUMBER)
126 value = _gtk_css_value_new_from_number (g_value_get_boxed (g_value));
129 value = gtk_css_value_new (type);
131 if (g_type_is_a (type, G_TYPE_OBJECT))
132 value->u.ptr = g_value_dup_object (g_value);
133 else if (g_type_is_a (type, G_TYPE_BOXED))
134 value->u.ptr = g_value_dup_boxed (g_value);
135 else if (g_type_is_a (type, G_TYPE_INT))
136 value->u.gint = g_value_get_int (g_value);
137 else if (g_type_is_a (type, G_TYPE_UINT))
138 value->u.guint = g_value_get_uint (g_value);
139 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
140 value->u.gint = g_value_get_boolean (g_value);
141 else if (g_type_is_a (type, G_TYPE_ENUM))
142 value->u.gint = g_value_get_enum (g_value);
143 else if (g_type_is_a (type, G_TYPE_FLAGS))
144 value->u.guint = g_value_get_flags (g_value);
145 else if (g_type_is_a (type, G_TYPE_STRING))
146 value->u.ptr = g_value_dup_string (g_value);
147 else if (g_type_is_a (type, G_TYPE_DOUBLE))
148 value->u.dbl = g_value_get_double (g_value);
149 else if (g_type_is_a (type, G_TYPE_FLOAT))
150 value->u.flt = g_value_get_float (g_value);
153 value->u.ptr = g_slice_new0 (GValue);
154 g_value_init (value->u.ptr, G_VALUE_TYPE (g_value));
155 g_value_copy (g_value, value->u.ptr);
163 _gtk_css_value_new_take_gvalue (GValue *g_value)
168 g_return_val_if_fail (g_value != NULL, NULL);
170 type = G_VALUE_TYPE (g_value);
172 /* Make sure we reuse the int/number singletons */
173 if (type == G_TYPE_INT)
175 value = _gtk_css_value_new_from_int (g_value_get_int (g_value));
176 g_value_unset (g_value);
178 else if (type == GTK_TYPE_CSS_NUMBER)
180 value = _gtk_css_value_new_from_number (g_value_get_boxed (g_value));
181 g_value_unset (g_value);
185 value = gtk_css_value_new (type);
187 if (g_type_is_a (type, G_TYPE_OBJECT))
188 value->u.ptr = g_value_get_object (g_value);
189 else if (g_type_is_a (type, G_TYPE_BOXED))
190 value->u.ptr = g_value_get_boxed (g_value);
191 else if (g_type_is_a (type, G_TYPE_INT))
192 value->u.gint = g_value_get_int (g_value);
193 else if (g_type_is_a (type, G_TYPE_UINT))
194 value->u.guint = g_value_get_uint (g_value);
195 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
196 value->u.gint = g_value_get_boolean (g_value);
197 else if (g_type_is_a (type, G_TYPE_ENUM))
198 value->u.gint = g_value_get_enum (g_value);
199 else if (g_type_is_a (type, G_TYPE_FLAGS))
200 value->u.guint = g_value_get_flags (g_value);
201 else if (g_type_is_a (type, G_TYPE_STRING))
202 value->u.ptr = g_value_dup_string (g_value);
203 else if (g_type_is_a (type, G_TYPE_DOUBLE))
204 value->u.dbl = g_value_get_double (g_value);
205 else if (g_type_is_a (type, G_TYPE_FLOAT))
206 value->u.flt = g_value_get_float (g_value);
209 value->u.ptr = g_slice_new0 (GValue);
210 g_value_init (value->u.ptr, G_VALUE_TYPE (g_value));
211 g_value_copy (g_value, value->u.ptr);
212 g_value_unset (g_value);
220 _gtk_css_value_new_from_int (gint val)
223 static GtkCssValue *singletons[4] = {NULL};
225 if (val >= 0 && val < G_N_ELEMENTS (singletons))
227 if (singletons[val] == NULL)
229 value = gtk_css_value_new (G_TYPE_INT);
231 singletons[val] = value;
233 return _gtk_css_value_ref (singletons[val]);
236 value = gtk_css_value_new (G_TYPE_INT);
243 _gtk_css_value_new_take_string (char *string)
247 value = gtk_css_value_new (G_TYPE_STRING);
248 value->u.ptr = string;
254 g_boxed_copy0 (GType boxed_type,
255 gconstpointer src_boxed)
257 if (src_boxed == NULL)
259 return g_boxed_copy (boxed_type, src_boxed);
263 _gtk_css_value_new_take_pattern (cairo_pattern_t *v)
267 value = gtk_css_value_new (CAIRO_GOBJECT_TYPE_PATTERN);
274 _gtk_css_value_new_take_shadow (GtkShadow *v)
278 value = gtk_css_value_new (GTK_TYPE_SHADOW);
285 _gtk_css_value_new_take_image (GtkCssImage *v)
289 value = gtk_css_value_new (GTK_TYPE_CSS_IMAGE);
296 _gtk_css_value_new_from_number (const GtkCssNumber *v)
299 static GtkCssValue *zero_singleton = NULL;
300 static GtkCssValue *px_singletons[5] = {NULL};
302 if (v->unit == GTK_CSS_NUMBER &&
305 if (zero_singleton == NULL)
307 value = gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
308 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
309 zero_singleton = value;
311 return _gtk_css_value_ref (zero_singleton);
314 if (v->unit == GTK_CSS_PX &&
321 int i = round (v->value);
322 if (px_singletons[i] == NULL)
324 value = gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
325 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
326 px_singletons[i] = value;
329 return _gtk_css_value_ref (px_singletons[i]);
332 value = gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
333 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
339 _gtk_css_value_new_from_rgba (const GdkRGBA *v)
343 value = gtk_css_value_new (GDK_TYPE_RGBA);
344 value->u.ptr = g_boxed_copy0 (GDK_TYPE_RGBA, v);
350 _gtk_css_value_new_from_color (const GdkColor *v)
354 value = gtk_css_value_new (GDK_TYPE_COLOR);
355 value->u.ptr = g_boxed_copy0 (GDK_TYPE_COLOR, v);
361 _gtk_css_value_new_from_background_size (const GtkCssBackgroundSize *v)
365 value = gtk_css_value_new (GTK_TYPE_CSS_BACKGROUND_SIZE);
366 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BACKGROUND_SIZE, v);
372 _gtk_css_value_new_from_background_position (const GtkCssBackgroundPosition *v)
376 value = gtk_css_value_new (GTK_TYPE_CSS_BACKGROUND_POSITION);
377 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BACKGROUND_POSITION, v);
383 _gtk_css_value_new_take_symbolic_color (GtkSymbolicColor *v)
387 value = gtk_css_value_new (GTK_TYPE_SYMBOLIC_COLOR);
394 _gtk_css_value_alloc (const GtkCssValueClass *klass,
399 value = g_slice_alloc0 (size);
401 value->class = klass;
402 value->ref_count = 1;
408 _gtk_css_value_ref (GtkCssValue *value)
410 g_return_val_if_fail (value != NULL, NULL);
412 g_atomic_int_add (&value->ref_count, 1);
418 _gtk_css_value_unref (GtkCssValue *value)
423 if (!g_atomic_int_dec_and_test (&value->ref_count))
426 value->class->free (value);
430 _gtk_css_value_print (const GtkCssValue *value,
433 g_return_if_fail (value != NULL);
434 g_return_if_fail (string != NULL);
436 value->class->print (value, string);
440 _gtk_css_value_get_content_type (const GtkCssValue *value)
446 _gtk_css_value_holds (const GtkCssValue *value, GType type)
448 return g_type_is_a (value->type, type);
452 fill_gvalue (const GtkCssValue *value,
459 if (g_type_is_a (type, G_TYPE_OBJECT))
460 g_value_set_object (g_value, value->u.ptr);
461 else if (g_type_is_a (type, G_TYPE_BOXED))
462 g_value_set_boxed (g_value, value->u.ptr);
463 else if (g_type_is_a (type, G_TYPE_INT))
464 g_value_set_int (g_value, value->u.gint);
465 else if (g_type_is_a (type, G_TYPE_UINT))
466 g_value_set_uint (g_value, value->u.guint);
467 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
468 g_value_set_boolean (g_value, value->u.gint);
469 else if (g_type_is_a (type, G_TYPE_ENUM))
470 g_value_set_enum (g_value, value->u.gint);
471 else if (g_type_is_a (type, G_TYPE_FLAGS))
472 g_value_set_flags (g_value, value->u.guint);
473 else if (g_type_is_a (type, G_TYPE_STRING))
474 g_value_set_string (g_value, value->u.ptr);
475 else if (g_type_is_a (type, G_TYPE_DOUBLE))
476 g_value_set_double (g_value, value->u.dbl);
477 else if (g_type_is_a (type, G_TYPE_FLOAT))
478 g_value_set_float (g_value, value->u.flt);
480 g_value_copy (value->u.ptr, g_value);
484 _gtk_css_value_init_gvalue (const GtkCssValue *value,
489 g_value_init (g_value, value->type);
490 fill_gvalue (value, g_value);
495 _gtk_css_value_is_special (const GtkCssValue *value)
497 return _gtk_css_value_holds (value, GTK_TYPE_CSS_SPECIAL_VALUE);
501 _gtk_css_value_get_special_kind (const GtkCssValue *value)
503 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_SPECIAL_VALUE), 0);
504 return value->u.gint;
508 _gtk_css_value_get_number (const GtkCssValue *value)
510 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_NUMBER), NULL);
515 _gtk_css_value_get_symbolic_color (const GtkCssValue *value)
517 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_SYMBOLIC_COLOR), NULL);
522 _gtk_css_value_get_int (const GtkCssValue *value)
524 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_INT), 0);
525 return value->u.gint;
529 _gtk_css_value_get_enum (const GtkCssValue *value)
531 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_ENUM), 0);
532 return value->u.gint;
536 _gtk_css_value_get_double (const GtkCssValue *value)
538 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_DOUBLE), 0);
543 _gtk_css_value_get_string (const GtkCssValue *value)
545 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_STRING), 0);
550 _gtk_css_value_dup_object (const GtkCssValue *value)
552 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_OBJECT), NULL);
554 return g_object_ref (value->u.ptr);
559 _gtk_css_value_get_object (const GtkCssValue *value)
561 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_OBJECT), NULL);
566 _gtk_css_value_get_boxed (const GtkCssValue *value)
568 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_BOXED), NULL);
573 _gtk_css_value_get_strv (const GtkCssValue *value)
575 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_STRV), NULL);
580 _gtk_css_value_get_image (const GtkCssValue *value)
582 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_IMAGE), NULL);
587 _gtk_css_value_get_border_style (const GtkCssValue *value)
589 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_BORDER_STYLE), 0);
590 return value->u.gint;
593 const GtkCssBackgroundSize *
594 _gtk_css_value_get_background_size (const GtkCssValue *value)
596 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BACKGROUND_SIZE), NULL);
600 const GtkCssBackgroundPosition *
601 _gtk_css_value_get_background_position (const GtkCssValue *value)
603 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BACKGROUND_POSITION), NULL);
607 const GtkCssBorderImageRepeat *
608 _gtk_css_value_get_border_image_repeat (const GtkCssValue *value)
610 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BORDER_IMAGE_REPEAT), NULL);
614 const GtkCssBorderCornerRadius *
615 _gtk_css_value_get_border_corner_radius (const GtkCssValue *value)
617 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS), NULL);
622 _gtk_css_value_get_pango_style (const GtkCssValue *value)
624 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_STYLE), 0);
625 return value->u.gint;
629 _gtk_css_value_get_pango_variant (const GtkCssValue *value)
631 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_VARIANT), 0);
632 return value->u.gint;
636 _gtk_css_value_get_pango_weight (const GtkCssValue *value)
638 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_WEIGHT), 0);
639 return value->u.gint;
643 _gtk_css_value_get_rgba (const GtkCssValue *value)
645 g_return_val_if_fail (_gtk_css_value_holds (value, GDK_TYPE_RGBA), NULL);
650 _gtk_css_value_get_pattern (const GtkCssValue *value)
652 g_return_val_if_fail (_gtk_css_value_holds (value, CAIRO_GOBJECT_TYPE_PATTERN), NULL);
657 _gtk_css_value_get_gradient (const GtkCssValue *value)
659 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_GRADIENT), NULL);
664 _gtk_css_value_get_shadow (const GtkCssValue *value)
666 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_SHADOW), NULL);