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, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
22 #include "gtkstylepropertiesprivate.h"
25 #include <gobject/gvaluecollector.h>
26 #include <cairo-gobject.h>
28 #include "gtkstyleprovider.h"
29 #include "gtksymboliccolor.h"
30 #include "gtkthemingengine.h"
31 #include "gtkanimationdescription.h"
32 #include "gtkgradient.h"
33 #include "gtkshadowprivate.h"
34 #include "gtkcsstypesprivate.h"
36 #include "gtkstylepropertyprivate.h"
40 * SECTION:gtkstyleproperties
41 * @Short_description: Store for style property information
42 * @Title: GtkStyleProperties
44 * GtkStyleProperties provides the storage for style information
45 * that is used by #GtkStyleContext and other #GtkStyleProvider
48 * Before style properties can be stored in GtkStyleProperties, they
49 * must be registered with gtk_style_properties_register_property().
51 * Unless you are writing a #GtkStyleProvider implementation, you
52 * are unlikely to use this API directly, as gtk_style_context_get()
53 * and its variants are the preferred way to access styling information
54 * from widget implementations and theming engine implementations
55 * should use the APIs provided by #GtkThemingEngine instead.
58 typedef struct GtkStylePropertiesPrivate GtkStylePropertiesPrivate;
59 typedef struct PropertyData PropertyData;
60 typedef struct ValueData ValueData;
73 struct GtkStylePropertiesPrivate
75 GHashTable *color_map;
76 GHashTable *properties;
79 static void gtk_style_properties_provider_init (GtkStyleProviderIface *iface);
80 static void gtk_style_properties_finalize (GObject *object);
83 G_DEFINE_TYPE_EXTENDED (GtkStyleProperties, gtk_style_properties, G_TYPE_OBJECT, 0,
84 G_IMPLEMENT_INTERFACE (GTK_TYPE_STYLE_PROVIDER,
85 gtk_style_properties_provider_init));
88 gtk_style_properties_class_init (GtkStylePropertiesClass *klass)
90 GObjectClass *object_class = G_OBJECT_CLASS (klass);
92 object_class->finalize = gtk_style_properties_finalize;
94 g_type_class_add_private (object_class, sizeof (GtkStylePropertiesPrivate));
98 property_data_new (void)
102 data = g_slice_new0 (PropertyData);
103 data->values = g_array_new (FALSE, FALSE, sizeof (ValueData));
109 property_data_remove_values (PropertyData *data)
113 for (i = 0; i < data->values->len; i++)
115 ValueData *value_data;
117 value_data = &g_array_index (data->values, ValueData, i);
119 if (G_IS_VALUE (&value_data->value))
120 g_value_unset (&value_data->value);
123 if (data->values->len > 0)
124 g_array_remove_range (data->values, 0, data->values->len);
128 property_data_free (PropertyData *data)
130 property_data_remove_values (data);
131 g_array_free (data->values, TRUE);
132 g_slice_free (PropertyData, data);
136 property_data_find_position (PropertyData *data,
141 gboolean found = FALSE;
147 if (data->values->len == 0)
150 /* Find position for the given state, or the position where
151 * it would be if not found, the array is ordered by the
155 max = data->values->len - 1;
159 ValueData *value_data;
161 mid = (min + max) / 2;
162 value_data = &g_array_index (data->values, ValueData, mid);
164 if (value_data->state == state)
169 else if (value_data->state < state)
170 position = min = mid + 1;
177 while (!found && min <= max);
186 property_data_get_value (PropertyData *data,
192 if (!property_data_find_position (data, state, &pos))
194 ValueData new = { 0 };
197 g_array_insert_val (data->values, pos, new);
200 val_data = &g_array_index (data->values, ValueData, pos);
202 return &val_data->value;
206 property_data_match_state (PropertyData *data,
212 if (property_data_find_position (data, state, &pos))
217 val_data = &g_array_index (data->values, ValueData, pos);
218 return &val_data->value;
221 if (pos >= data->values->len)
222 pos = data->values->len - 1;
224 /* No exact match, go downwards the list to find
225 * the closest match to the given state flags, as
226 * a side effect, there is an implicit precedence
227 * of higher flags over the smaller ones.
229 for (i = pos; i >= 0; i--)
233 val_data = &g_array_index (data->values, ValueData, i);
235 /* Check whether any of the requested
236 * flags are set, and no other flags are.
238 * Also, no flags acts as a wildcard, such
239 * value should be always in the first position
240 * in the array (if present) anyways.
242 if (val_data->state == 0 ||
243 ((val_data->state & state) != 0 &&
244 (val_data->state & ~state) == 0))
245 return &val_data->value;
252 gtk_style_properties_init (GtkStyleProperties *props)
254 GtkStylePropertiesPrivate *priv;
256 priv = props->priv = G_TYPE_INSTANCE_GET_PRIVATE (props,
257 GTK_TYPE_STYLE_PROPERTIES,
258 GtkStylePropertiesPrivate);
260 priv->properties = g_hash_table_new_full (NULL, NULL, NULL,
261 (GDestroyNotify) property_data_free);
265 gtk_style_properties_finalize (GObject *object)
267 GtkStylePropertiesPrivate *priv;
268 GtkStyleProperties *props;
270 props = GTK_STYLE_PROPERTIES (object);
272 g_hash_table_destroy (priv->properties);
275 g_hash_table_destroy (priv->color_map);
277 G_OBJECT_CLASS (gtk_style_properties_parent_class)->finalize (object);
281 gtk_style_properties_get_style (GtkStyleProvider *provider,
284 /* Return style set itself */
285 return g_object_ref (provider);
289 gtk_style_properties_provider_init (GtkStyleProviderIface *iface)
291 iface->get_style = gtk_style_properties_get_style;
294 /* Property registration functions */
297 * gtk_style_properties_register_property: (skip)
298 * @parse_func: parsing function to use, or %NULL
299 * @pspec: the #GParamSpec for the new property
301 * Registers a property so it can be used in the CSS file format.
302 * This function is the low-level equivalent of
303 * gtk_theming_engine_register_property(), if you are implementing
304 * a theming engine, you want to use that function instead.
309 gtk_style_properties_register_property (GtkStylePropertyParser parse_func,
312 g_return_if_fail (G_IS_PARAM_SPEC (pspec));
314 _gtk_style_property_register (pspec,
324 * gtk_style_properties_lookup_property: (skip)
325 * @property_name: property name to look up
326 * @parse_func: (out): return location for the parse function
327 * @pspec: (out) (transfer none): return location for the #GParamSpec
329 * Returns %TRUE if a property has been registered, if @pspec or
330 * @parse_func are not %NULL, the #GParamSpec and parsing function
331 * will be respectively returned.
333 * Returns: %TRUE if the property is registered, %FALSE otherwise
338 gtk_style_properties_lookup_property (const gchar *property_name,
339 GtkStylePropertyParser *parse_func,
342 const GtkStyleProperty *node;
343 gboolean found = FALSE;
345 g_return_val_if_fail (property_name != NULL, FALSE);
347 node = _gtk_style_property_lookup (property_name);
352 *pspec = node->pspec;
355 *parse_func = node->property_parse_func;
363 /* GParamSpec functionality */
366 GTK_STYLE_PARAM_INHERIT = 1 << G_PARAM_USER_SHIFT
370 * gtk_style_param_set_inherit:
371 * @pspec: A style param
372 * @inherit: whether the @pspec value should be inherited
374 * Sets whether a param spec installed with function such as
375 * gtk_style_properties_register_property() or
376 * gtk_widget_class_install_style_property() should inherit their
377 * value from the parent widget if it is not set instead of using
378 * the default value of @pspec. See the
379 * <ulink url="http://www.w3.org/TR/CSS21/cascade.html#inheritance">
380 * CSS specification's description of inheritance</ulink> for a
381 * longer description of this concept.
383 * By default, param specs do not inherit their value.
386 gtk_style_param_set_inherit (GParamSpec *pspec,
390 pspec->flags |= GTK_STYLE_PARAM_INHERIT;
392 pspec->flags &= ~GTK_STYLE_PARAM_INHERIT;
396 * gtk_style_param_get_inherit:
397 * @pspec: a style param
399 * Checks if the value of this param should be inherited from the parent
400 * #GtkWidget instead of using the default value when it has not been
401 * specified. See gtk_style_param_set_inherit() for more details.
403 * Returns: %TRUE if the param should inherit its value
406 gtk_style_param_get_inherit (GParamSpec *pspec)
408 return (pspec->flags & GTK_STYLE_PARAM_INHERIT) ? TRUE : FALSE;
411 /* GtkStyleProperties methods */
414 * gtk_style_properties_new:
416 * Returns a newly created #GtkStyleProperties
418 * Returns: a new #GtkStyleProperties
421 gtk_style_properties_new (void)
423 return g_object_new (GTK_TYPE_STYLE_PROPERTIES, NULL);
427 * gtk_style_properties_map_color:
428 * @props: a #GtkStyleProperties
430 * @color: #GtkSymbolicColor to map @name to
432 * Maps @color so it can be referenced by @name. See
433 * gtk_style_properties_lookup_color()
438 gtk_style_properties_map_color (GtkStyleProperties *props,
440 GtkSymbolicColor *color)
442 GtkStylePropertiesPrivate *priv;
444 g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
445 g_return_if_fail (name != NULL);
446 g_return_if_fail (color != NULL);
450 if (G_UNLIKELY (!priv->color_map))
451 priv->color_map = g_hash_table_new_full (g_str_hash,
453 (GDestroyNotify) g_free,
454 (GDestroyNotify) gtk_symbolic_color_unref);
456 g_hash_table_replace (priv->color_map,
458 gtk_symbolic_color_ref (color));
462 * gtk_style_properties_lookup_color:
463 * @props: a #GtkStyleProperties
464 * @name: color name to lookup
466 * Returns the symbolic color that is mapped
469 * Returns: (transfer none): The mapped color
474 gtk_style_properties_lookup_color (GtkStyleProperties *props,
477 GtkStylePropertiesPrivate *priv;
479 g_return_val_if_fail (GTK_IS_STYLE_PROPERTIES (props), NULL);
480 g_return_val_if_fail (name != NULL, NULL);
484 if (!priv->color_map)
487 return g_hash_table_lookup (priv->color_map, name);
491 _gtk_style_properties_set_property_by_property (GtkStyleProperties *props,
492 const GtkStyleProperty *style_prop,
496 GtkStylePropertiesPrivate *priv;
501 value_type = G_VALUE_TYPE (value);
503 if (style_prop->pspec->value_type == GDK_TYPE_RGBA ||
504 style_prop->pspec->value_type == GDK_TYPE_COLOR)
506 /* Allow GtkSymbolicColor as well */
507 g_return_if_fail (value_type == GDK_TYPE_RGBA ||
508 value_type == GDK_TYPE_COLOR ||
509 value_type == GTK_TYPE_SYMBOLIC_COLOR);
511 else if (style_prop->pspec->value_type == CAIRO_GOBJECT_TYPE_PATTERN)
513 /* Allow GtkGradient as a substitute */
514 g_return_if_fail (value_type == CAIRO_GOBJECT_TYPE_PATTERN ||
515 value_type == GTK_TYPE_GRADIENT);
517 else if (style_prop->pspec->value_type == G_TYPE_INT)
519 g_return_if_fail (value_type == G_TYPE_INT ||
520 value_type == GTK_TYPE_CSS_BORDER_RADIUS);
523 g_return_if_fail (style_prop->pspec->value_type == value_type);
525 if (_gtk_style_property_is_shorthand (style_prop))
527 GParameter *parameters;
528 guint i, n_parameters;
530 parameters = _gtk_style_property_unpack (style_prop, value, &n_parameters);
532 for (i = 0; i < n_parameters; i++)
534 gtk_style_properties_set_property (props,
537 ¶meters[i].value);
538 g_value_unset (¶meters[i].value);
545 prop = g_hash_table_lookup (priv->properties, style_prop);
549 prop = property_data_new ();
550 g_hash_table_insert (priv->properties, (gpointer) style_prop, prop);
553 val = property_data_get_value (prop, state);
555 if (G_VALUE_TYPE (val) == value_type)
559 if (G_IS_VALUE (val))
562 g_value_init (val, value_type);
565 g_value_copy (value, val);
566 if (style_prop->pspec->value_type == value_type)
567 g_param_value_validate (style_prop->pspec, val);
571 * gtk_style_properties_set_property:
572 * @props: a #GtkStyleProperties
573 * @property: styling property to set
574 * @state: state to set the value for
575 * @value: new value for the property
577 * Sets a styling property in @props.
582 gtk_style_properties_set_property (GtkStyleProperties *props,
583 const gchar *property,
587 const GtkStyleProperty *node;
589 g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
590 g_return_if_fail (property != NULL);
591 g_return_if_fail (value != NULL);
593 node = _gtk_style_property_lookup (property);
597 g_warning ("Style property \"%s\" is not registered", property);
601 _gtk_style_properties_set_property_by_property (props,
608 * gtk_style_properties_set_valist:
609 * @props: a #GtkStyleProperties
610 * @state: state to set the values for
611 * @args: va_list of property name/value pairs, followed by %NULL
613 * Sets several style properties on @props.
618 gtk_style_properties_set_valist (GtkStyleProperties *props,
622 const gchar *property_name;
624 g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
626 property_name = va_arg (args, const gchar *);
628 while (property_name)
630 const GtkStyleProperty *node;
634 node = _gtk_style_property_lookup (property_name);
638 g_warning ("Style property \"%s\" is not registered", property_name);
642 G_VALUE_COLLECT_INIT (&val, node->pspec->value_type,
646 g_warning ("Could not set style property \"%s\": %s", property_name, error);
647 g_value_unset (&val);
652 _gtk_style_properties_set_property_by_property (props, node, state, &val);
653 g_value_unset (&val);
655 property_name = va_arg (args, const gchar *);
660 * gtk_style_properties_set:
661 * @props: a #GtkStyleProperties
662 * @state: state to set the values for
663 * @...: property name/value pairs, followed by %NULL
665 * Sets several style properties on @props.
670 gtk_style_properties_set (GtkStyleProperties *props,
676 g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
678 va_start (args, state);
679 gtk_style_properties_set_valist (props, state, args);
684 resolve_color (GtkStyleProperties *props,
689 /* Resolve symbolic color to GdkRGBA */
690 if (!gtk_symbolic_color_resolve (g_value_get_boxed (value), props, &color))
693 /* Store it back, this is where GdkRGBA caching happens */
694 g_value_unset (value);
695 g_value_init (value, GDK_TYPE_RGBA);
696 g_value_set_boxed (value, &color);
702 resolve_color_rgb (GtkStyleProperties *props,
705 GdkColor color = { 0 };
708 if (!gtk_symbolic_color_resolve (g_value_get_boxed (value), props, &rgba))
711 color.red = rgba.red * 65535. + 0.5;
712 color.green = rgba.green * 65535. + 0.5;
713 color.blue = rgba.blue * 65535. + 0.5;
715 g_value_unset (value);
716 g_value_init (value, GDK_TYPE_COLOR);
717 g_value_set_boxed (value, &color);
723 resolve_gradient (GtkStyleProperties *props,
726 cairo_pattern_t *gradient;
728 if (!gtk_gradient_resolve (g_value_get_boxed (value), props, &gradient))
731 /* Store it back, this is where cairo_pattern_t caching happens */
732 g_value_unset (value);
733 g_value_init (value, CAIRO_GOBJECT_TYPE_PATTERN);
734 g_value_take_boxed (value, gradient);
740 resolve_shadow (GtkStyleProperties *props,
743 GtkShadow *resolved, *base;
745 base = g_value_get_boxed (value);
750 if (_gtk_shadow_get_resolved (base))
753 resolved = _gtk_shadow_resolve (base, props);
754 if (resolved == NULL)
757 g_value_take_boxed (value, resolved);
763 style_properties_resolve_type (GtkStyleProperties *props,
764 const GtkStyleProperty *node,
767 if (G_VALUE_TYPE (val) == GTK_TYPE_SYMBOLIC_COLOR)
769 if (node->pspec->value_type == GDK_TYPE_RGBA)
771 if (!resolve_color (props, val))
774 else if (node->pspec->value_type == GDK_TYPE_COLOR)
776 if (!resolve_color_rgb (props, val))
782 else if (G_VALUE_TYPE (val) == GTK_TYPE_GRADIENT)
784 g_return_val_if_fail (node->pspec->value_type == CAIRO_GOBJECT_TYPE_PATTERN, FALSE);
786 if (!resolve_gradient (props, val))
789 else if (G_VALUE_TYPE (val) == GTK_TYPE_SHADOW)
791 if (!resolve_shadow (props, val))
798 /* NB: Will return NULL for shorthands */
800 _gtk_style_properties_peek_property (GtkStyleProperties *props,
801 const gchar *prop_name,
803 const GtkStyleProperty **property)
805 GtkStylePropertiesPrivate *priv;
806 const GtkStyleProperty *node;
810 g_return_val_if_fail (GTK_IS_STYLE_PROPERTIES (props), NULL);
811 g_return_val_if_fail (prop_name != NULL, NULL);
813 node = _gtk_style_property_lookup (prop_name);
819 g_warning ("Style property \"%s\" is not registered", prop_name);
824 prop = g_hash_table_lookup (priv->properties, node);
829 val = property_data_match_state (prop, state);
832 !style_properties_resolve_type (props, node, val))
839 * gtk_style_properties_get_property:
840 * @props: a #GtkStyleProperties
841 * @property: style property name
842 * @state: state to retrieve the property value for
843 * @value: (out) (transfer full): return location for the style property value.
845 * Gets a style property from @props for the given state. When done with @value,
846 * g_value_unset() needs to be called to free any allocated memory.
848 * Returns: %TRUE if the property exists in @props, %FALSE otherwise
853 gtk_style_properties_get_property (GtkStyleProperties *props,
854 const gchar *property,
858 const GtkStyleProperty *node;
861 g_return_val_if_fail (GTK_IS_STYLE_PROPERTIES (props), FALSE);
862 g_return_val_if_fail (property != NULL, FALSE);
863 g_return_val_if_fail (value != NULL, FALSE);
865 val = _gtk_style_properties_peek_property (props, property, state, &node);
870 g_value_init (value, node->pspec->value_type);
873 g_value_copy (val, value);
874 else if (_gtk_style_property_is_shorthand (node))
875 _gtk_style_property_pack (node, props, state, value);
877 _gtk_style_property_default_value (node, props, value);
883 * gtk_style_properties_get_valist:
884 * @props: a #GtkStyleProperties
885 * @state: state to retrieve the property values for
886 * @args: va_list of property name/return location pairs, followed by %NULL
888 * Retrieves several style property values from @props for a given state.
893 gtk_style_properties_get_valist (GtkStyleProperties *props,
897 const gchar *property_name;
899 g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
901 property_name = va_arg (args, const gchar *);
903 while (property_name)
905 const GtkStyleProperty *node;
909 val = _gtk_style_properties_peek_property (props, property_name, state, &node);
915 G_VALUE_LCOPY (val, args, 0, &error);
917 else if (_gtk_style_property_is_shorthand (node))
919 GValue packed = { 0 };
921 g_value_init (&packed, node->pspec->value_type);
922 _gtk_style_property_pack (node, props, state, &packed);
923 G_VALUE_LCOPY (&packed, args, 0, &error);
924 g_value_unset (&packed);
928 GValue default_value = { 0 };
930 g_value_init (&default_value, node->pspec->value_type);
931 _gtk_style_property_default_value (node, props, &default_value);
932 G_VALUE_LCOPY (&default_value, args, 0, &error);
933 g_value_unset (&default_value);
938 g_warning ("Could not get style property \"%s\": %s", property_name, error);
943 property_name = va_arg (args, const gchar *);
948 * gtk_style_properties_get:
949 * @props: a #GtkStyleProperties
950 * @state: state to retrieve the property values for
951 * @...: property name /return value pairs, followed by %NULL
953 * Retrieves several style property values from @props for a
959 gtk_style_properties_get (GtkStyleProperties *props,
965 g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
967 va_start (args, state);
968 gtk_style_properties_get_valist (props, state, args);
973 * gtk_style_properties_unset_property:
974 * @props: a #GtkStyleProperties
975 * @property: property to unset
976 * @state: state to unset
978 * Unsets a style property in @props.
983 gtk_style_properties_unset_property (GtkStyleProperties *props,
984 const gchar *property,
987 GtkStylePropertiesPrivate *priv;
988 const GtkStyleProperty *node;
992 g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
993 g_return_if_fail (property != NULL);
995 node = _gtk_style_property_lookup (property);
999 g_warning ("Style property \"%s\" is not registered", property);
1004 prop = g_hash_table_lookup (priv->properties, node);
1009 if (property_data_find_position (prop, state, &pos))
1013 data = &g_array_index (prop->values, ValueData, pos);
1015 if (G_IS_VALUE (&data->value))
1016 g_value_unset (&data->value);
1018 g_array_remove_index (prop->values, pos);
1023 * gtk_style_properties_clear:
1024 * @props: a #GtkStyleProperties
1026 * Clears all style information from @props.
1029 gtk_style_properties_clear (GtkStyleProperties *props)
1031 GtkStylePropertiesPrivate *priv;
1033 g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
1036 g_hash_table_remove_all (priv->properties);
1040 * gtk_style_properties_merge:
1041 * @props: a #GtkStyleProperties
1042 * @props_to_merge: a second #GtkStyleProperties
1043 * @replace: whether to replace values or not
1045 * Merges into @props all the style information contained
1046 * in @props_to_merge. If @replace is %TRUE, the values
1047 * will be overwritten, if it is %FALSE, the older values
1053 gtk_style_properties_merge (GtkStyleProperties *props,
1054 const GtkStyleProperties *props_to_merge,
1057 GtkStylePropertiesPrivate *priv, *priv_to_merge;
1058 GHashTableIter iter;
1059 gpointer key, value;
1061 g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props));
1062 g_return_if_fail (GTK_IS_STYLE_PROPERTIES (props_to_merge));
1065 priv_to_merge = props_to_merge->priv;
1067 /* Merge symbolic color map */
1068 if (priv_to_merge->color_map)
1070 g_hash_table_iter_init (&iter, priv_to_merge->color_map);
1072 while (g_hash_table_iter_next (&iter, &key, &value))
1075 GtkSymbolicColor *color;
1081 g_hash_table_lookup (priv->color_map, name))
1084 gtk_style_properties_map_color (props, name, color);
1088 /* Merge symbolic style properties */
1089 g_hash_table_iter_init (&iter, priv_to_merge->properties);
1091 while (g_hash_table_iter_next (&iter, &key, &value))
1093 PropertyData *prop_to_merge = value;
1097 prop = g_hash_table_lookup (priv->properties, key);
1101 prop = property_data_new ();
1102 g_hash_table_insert (priv->properties, key, prop);
1105 for (i = 0; i < prop_to_merge->values->len; i++)
1110 data = &g_array_index (prop_to_merge->values, ValueData, i);
1112 if (replace && data->state == GTK_STATE_FLAG_NORMAL &&
1113 G_VALUE_TYPE (&data->value) != PANGO_TYPE_FONT_DESCRIPTION)
1115 /* Let normal state override all states
1116 * previously set in the original set
1118 property_data_remove_values (prop);
1121 value = property_data_get_value (prop, data->state);
1123 if (G_VALUE_TYPE (&data->value) == PANGO_TYPE_FONT_DESCRIPTION &&
1126 PangoFontDescription *font_desc;
1127 PangoFontDescription *font_desc_to_merge;
1129 /* Handle merging of font descriptions */
1130 font_desc = g_value_get_boxed (value);
1131 font_desc_to_merge = g_value_get_boxed (&data->value);
1133 pango_font_description_merge (font_desc, font_desc_to_merge, replace);
1135 else if (G_VALUE_TYPE (&data->value) == G_TYPE_PTR_ARRAY &&
1138 GPtrArray *array, *array_to_merge;
1141 /* Append the array, mainly thought
1142 * for the gtk-key-bindings property
1144 array = g_value_get_boxed (value);
1145 array_to_merge = g_value_get_boxed (&data->value);
1147 for (i = 0; i < array_to_merge->len; i++)
1148 g_ptr_array_add (array, g_ptr_array_index (array_to_merge, i));
1150 else if (replace || !G_IS_VALUE (value))
1152 if (!G_IS_VALUE (value))
1153 g_value_init (value, G_VALUE_TYPE (&data->value));
1154 else if (G_VALUE_TYPE (value) != G_VALUE_TYPE (&data->value))
1156 g_value_unset (value);
1157 g_value_init (value, G_VALUE_TYPE (&data->value));
1160 g_value_copy (&data->value, value);