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);
97 value->u.ptr = g_slice_new0 (GValue);
98 g_value_init (value->u.ptr, G_VALUE_TYPE (g_value));
99 g_value_copy (g_value, value->u.ptr);
107 _gtk_css_value_new_take_gvalue (GValue *g_value)
112 g_return_val_if_fail (g_value != NULL, NULL);
114 type = G_VALUE_TYPE (g_value);
116 /* Make sure we reuse the int/number singletons */
117 if (type == G_TYPE_INT)
119 value = _gtk_css_value_new_from_int (g_value_get_int (g_value));
120 g_value_unset (g_value);
122 else if (type == GTK_TYPE_CSS_NUMBER)
124 value = _gtk_css_value_new_from_number (g_value_get_boxed (g_value));
125 g_value_unset (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_get_object (g_value);
133 else if (g_type_is_a (type, G_TYPE_BOXED))
134 value->u.ptr = g_value_get_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);
156 g_value_unset (g_value);
164 _gtk_css_value_new_from_int (gint val)
167 static GtkCssValue *singletons[4] = {NULL};
169 if (val >= 0 && val < G_N_ELEMENTS (singletons))
171 if (singletons[val] == NULL)
173 value = _gtk_css_value_new (G_TYPE_INT);
175 singletons[val] = value;
177 return _gtk_css_value_ref (singletons[val]);
180 value = _gtk_css_value_new (G_TYPE_INT);
187 _gtk_css_value_new_take_string (char *string)
191 value = _gtk_css_value_new (G_TYPE_STRING);
192 value->u.ptr = string;
198 g_boxed_copy0 (GType boxed_type,
199 gconstpointer src_boxed)
201 if (src_boxed == NULL)
203 return g_boxed_copy (boxed_type, src_boxed);
207 _gtk_css_value_new_from_border (const GtkBorder *border)
211 value = _gtk_css_value_new (GTK_TYPE_BORDER);
212 value->u.ptr = g_boxed_copy0 (GTK_TYPE_BORDER, border);
218 _gtk_css_value_new_take_pattern (cairo_pattern_t *v)
222 value = _gtk_css_value_new (CAIRO_GOBJECT_TYPE_PATTERN);
229 _gtk_css_value_new_from_pattern (const cairo_pattern_t *v)
233 value = _gtk_css_value_new (CAIRO_GOBJECT_TYPE_PATTERN);
234 value->u.ptr = g_boxed_copy0 (CAIRO_GOBJECT_TYPE_PATTERN, v);
240 _gtk_css_value_new_take_shadow (GtkShadow *v)
244 value = _gtk_css_value_new (GTK_TYPE_SHADOW);
251 _gtk_css_value_new_take_font_description (PangoFontDescription *v)
255 value = _gtk_css_value_new (PANGO_TYPE_FONT_DESCRIPTION);
262 _gtk_css_value_new_take_image (GtkCssImage *v)
266 value = _gtk_css_value_new (GTK_TYPE_CSS_IMAGE);
273 _gtk_css_value_new_from_number (const GtkCssNumber *v)
276 static GtkCssValue *zero_singleton = NULL;
277 static GtkCssValue *px_singletons[5] = {NULL};
279 if (v->unit == GTK_CSS_NUMBER &&
282 if (zero_singleton == NULL)
284 value = _gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
285 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
286 zero_singleton = value;
288 return _gtk_css_value_ref (zero_singleton);
291 if (v->unit == GTK_CSS_PX &&
298 int i = round (v->value);
299 if (px_singletons[i] == NULL)
301 value = _gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
302 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
303 px_singletons[i] = value;
306 return _gtk_css_value_ref (px_singletons[i]);
309 value = _gtk_css_value_new (GTK_TYPE_CSS_NUMBER);
310 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_NUMBER, v);
316 _gtk_css_value_new_from_rgba (const GdkRGBA *v)
320 value = _gtk_css_value_new (GDK_TYPE_RGBA);
321 value->u.ptr = g_boxed_copy0 (GDK_TYPE_RGBA, v);
327 _gtk_css_value_new_from_color (const GdkColor *v)
331 value = _gtk_css_value_new (GDK_TYPE_COLOR);
332 value->u.ptr = g_boxed_copy0 (GDK_TYPE_COLOR, v);
338 _gtk_css_value_new_from_background_size (const GtkCssBackgroundSize *v)
342 value = _gtk_css_value_new (GTK_TYPE_CSS_BACKGROUND_SIZE);
343 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BACKGROUND_SIZE, v);
349 _gtk_css_value_new_from_background_position (const GtkCssBackgroundPosition *v)
353 value = _gtk_css_value_new (GTK_TYPE_CSS_BACKGROUND_POSITION);
354 value->u.ptr = g_boxed_copy0 (GTK_TYPE_CSS_BACKGROUND_POSITION, v);
360 _gtk_css_value_new_take_symbolic_color (GtkSymbolicColor *v)
364 value = _gtk_css_value_new (GTK_TYPE_SYMBOLIC_COLOR);
371 _gtk_css_value_ref (GtkCssValue *value)
373 g_return_val_if_fail (value != NULL, NULL);
375 g_atomic_int_add (&value->ref_count, 1);
381 _gtk_css_value_unref (GtkCssValue *value)
388 if (!g_atomic_int_dec_and_test (&value->ref_count))
393 if (g_type_is_a (type, G_TYPE_OBJECT))
395 if (value->u.ptr != NULL)
396 g_object_unref (value->u.ptr);
398 else if (g_type_is_a (type, G_TYPE_BOXED))
400 if (value->u.ptr != NULL)
401 g_boxed_free (type, value->u.ptr);
403 else if (g_type_is_a (type, G_TYPE_STRING))
404 g_free (value->u.ptr);
405 else if (g_type_is_a (type, G_TYPE_INT))
407 else if (g_type_is_a (type, G_TYPE_UINT))
409 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
411 else if (g_type_is_a (type, G_TYPE_ENUM))
413 else if (g_type_is_a (type, G_TYPE_FLAGS))
415 else if (g_type_is_a (type, G_TYPE_DOUBLE))
417 else if (g_type_is_a (type, G_TYPE_FLOAT))
421 g_value_unset (value->u.ptr);
422 g_slice_free (GValue, value->u.ptr);
425 g_slice_free (GtkCssValue, value);
429 _gtk_css_value_get_content_type (GtkCssValue *value)
435 _gtk_css_value_holds (GtkCssValue *value, GType type)
437 return g_type_is_a (value->type, type);
441 fill_gvalue (GtkCssValue *value,
448 if (g_type_is_a (type, G_TYPE_OBJECT))
449 g_value_set_object (g_value, value->u.ptr);
450 else if (g_type_is_a (type, G_TYPE_BOXED))
451 g_value_set_boxed (g_value, value->u.ptr);
452 else if (g_type_is_a (type, G_TYPE_INT))
453 g_value_set_int (g_value, value->u.gint);
454 else if (g_type_is_a (type, G_TYPE_UINT))
455 g_value_set_uint (g_value, value->u.guint);
456 else if (g_type_is_a (type, G_TYPE_BOOLEAN))
457 g_value_set_boolean (g_value, value->u.gint);
458 else if (g_type_is_a (type, G_TYPE_ENUM))
459 g_value_set_enum (g_value, value->u.gint);
460 else if (g_type_is_a (type, G_TYPE_FLAGS))
461 g_value_set_flags (g_value, value->u.guint);
462 else if (g_type_is_a (type, G_TYPE_STRING))
463 g_value_set_string (g_value, value->u.ptr);
464 else if (g_type_is_a (type, G_TYPE_DOUBLE))
465 g_value_set_double (g_value, value->u.dbl);
466 else if (g_type_is_a (type, G_TYPE_FLOAT))
467 g_value_set_float (g_value, value->u.flt);
469 g_value_copy (value->u.ptr, g_value);
473 _gtk_css_value_init_gvalue (GtkCssValue *value,
478 g_value_init (g_value, value->type);
479 fill_gvalue (value, g_value);
484 _gtk_css_value_is_special (GtkCssValue *value)
486 return _gtk_css_value_holds (value, GTK_TYPE_CSS_SPECIAL_VALUE);
490 _gtk_css_value_get_special_kind (GtkCssValue *value)
492 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_SPECIAL_VALUE), 0);
493 return value->u.gint;
497 _gtk_css_value_get_number (GtkCssValue *value)
499 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_NUMBER), NULL);
504 _gtk_css_value_get_symbolic_color (GtkCssValue *value)
506 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_SYMBOLIC_COLOR), NULL);
511 _gtk_css_value_get_int (GtkCssValue *value)
513 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_INT), 0);
514 return value->u.gint;
518 _gtk_css_value_get_double (GtkCssValue *value)
520 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_DOUBLE), 0);
525 _gtk_css_value_get_string (GtkCssValue *value)
527 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_STRING), 0);
532 _gtk_css_value_dup_object (GtkCssValue *value)
534 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_OBJECT), NULL);
536 return g_object_ref (value->u.ptr);
541 _gtk_css_value_get_object (GtkCssValue *value)
543 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_OBJECT), NULL);
548 _gtk_css_value_get_boxed (GtkCssValue *value)
550 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_BOXED), NULL);
555 _gtk_css_value_get_strv (GtkCssValue *value)
557 g_return_val_if_fail (_gtk_css_value_holds (value, G_TYPE_STRV), NULL);
562 _gtk_css_value_get_image (GtkCssValue *value)
564 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_IMAGE), NULL);
569 _gtk_css_value_get_border_style (GtkCssValue *value)
571 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_BORDER_STYLE), 0);
572 return value->u.gint;
575 GtkCssBackgroundSize *
576 _gtk_css_value_get_background_size (GtkCssValue *value)
578 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BACKGROUND_SIZE), NULL);
582 GtkCssBackgroundPosition *
583 _gtk_css_value_get_background_position (GtkCssValue *value)
585 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BACKGROUND_POSITION), NULL);
589 GtkCssBorderImageRepeat *
590 _gtk_css_value_get_border_image_repeat (GtkCssValue *value)
592 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BORDER_IMAGE_REPEAT), NULL);
596 GtkCssBorderCornerRadius *
597 _gtk_css_value_get_border_corner_radius (GtkCssValue *value)
599 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_CSS_BORDER_CORNER_RADIUS), NULL);
603 PangoFontDescription *
604 _gtk_css_value_get_font_description (GtkCssValue *value)
606 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_FONT_DESCRIPTION), 0);
611 _gtk_css_value_get_pango_style (GtkCssValue *value)
613 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_STYLE), 0);
614 return value->u.gint;
618 _gtk_css_value_get_pango_variant (GtkCssValue *value)
620 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_VARIANT), 0);
621 return value->u.gint;
625 _gtk_css_value_get_pango_weight (GtkCssValue *value)
627 g_return_val_if_fail (_gtk_css_value_holds (value, PANGO_TYPE_WEIGHT), 0);
628 return value->u.gint;
632 _gtk_css_value_get_rgba (GtkCssValue *value)
634 g_return_val_if_fail (_gtk_css_value_holds (value, GDK_TYPE_RGBA), NULL);
639 _gtk_css_value_get_pattern (GtkCssValue *value)
641 g_return_val_if_fail (_gtk_css_value_holds (value, CAIRO_GOBJECT_TYPE_PATTERN), NULL);
646 _gtk_css_value_get_gradient (GtkCssValue *value)
648 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_GRADIENT), NULL);
653 _gtk_css_value_get_shadow (GtkCssValue *value)
655 g_return_val_if_fail (_gtk_css_value_holds (value, GTK_TYPE_SHADOW), NULL);