1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1998-2002 James Henstridge <james@daa.com.au>
3 * Copyright (C) 2006-2007 Async Open Source,
4 * Johan Dahlin <jdahlin@async.com.br>,
5 * Henrique Romano <henrique@async.com.br>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
23 * @Short_description: Build an interface from an XML UI definition
26 * A GtkBuilder is an auxiliary object that reads textual descriptions
27 * of a user interface and instantiates the described objects. To pass a
28 * description to a GtkBuilder, call gtk_builder_add_from_file() or
29 * gtk_builder_add_from_string(). These functions can be called multiple
30 * times; the builder merges the content of all descriptions.
32 * A GtkBuilder holds a reference to all objects that it has constructed
33 * and drops these references when it is finalized. This finalization can
34 * cause the destruction of non-widget objects or widgets which are not
35 * contained in a toplevel window. For toplevel windows constructed by a
36 * builder, it is the responsibility of the user to call gtk_widget_destroy()
37 * to get rid of them and all the widgets they contain.
39 * The functions gtk_builder_get_object() and gtk_builder_get_objects()
40 * can be used to access the widgets in the interface by the names assigned
41 * to them inside the UI description. Toplevel windows returned by these
42 * functions will stay around until the user explicitly destroys them
43 * with gtk_widget_destroy(). Other widgets will either be part of a
44 * larger hierarchy constructed by the builder (in which case you should
45 * not have to worry about their lifecycle), or without a parent, in which
46 * case they have to be added to some container to make use of them.
47 * Non-widget objects need to be reffed with g_object_ref() to keep them
48 * beyond the lifespan of the builder.
50 * The function gtk_builder_connect_signals() and variants thereof can be
51 * used to connect handlers to the named signals in the description.
53 * <refsect2 id="BUILDER-UI">
54 * <title>GtkBuilder UI Definitions</title>
56 * GtkBuilder parses textual descriptions of user interfaces which are specified
57 * in an XML format which can be roughly described by the RELAX NG schema below.
58 * We refer to these descriptions as <firstterm>GtkBuilder UI definitions</firstterm>
59 * or just <firstterm>UI definitions</firstterm> if the context is clear. Do not
60 * confuse GtkBuilder UI Definitions with
61 * <link linkend="XML-UI">GtkUIManager UI Definitions</link>, which are more
65 * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gtk/gtkbuilder.rnc">
66 * <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
70 * The toplevel element is <interface>. It optionally takes a "domain"
71 * attribute, which will make the builder look for translated strings using
72 * dgettext() in the domain specified. This can also be done by calling
73 * gtk_builder_set_translation_domain() on the builder. Objects are described by
74 * <object> elements, which can contain <property> elements to set
75 * properties, <signal> elements which connect signals to handlers, and
76 * <child> elements, which describe child objects (most often widgets
77 * inside a container, but also e.g. actions in an action group, or columns in a
78 * tree model). A <child> element contains an <object> element which
79 * describes the child object. The target toolkit version(s) are described by
80 * <requires> elements, the "lib" attribute specifies the widget library
81 * in question (currently the only supported value is "gtk+") and the "version"
82 * attribute specifies the target version in the form
83 * "<major>.<minor>". The builder will error out if the version
84 * requirements are not met.
86 * Typically, the specific kind of object represented by an <object>
87 * element is specified by the "class" attribute. If the type has not been
88 * loaded yet, GTK+ tries to find the <function>_get_type()</function> from the
89 * class name by applying heuristics. This works in most cases, but if
90 * necessary, it is possible to specify the name of the
91 * <function>_get_type()</function> explictly with the "type-func" attribute.
92 * As a special case, GtkBuilder allows to use an object that has been
93 * constructed by a #GtkUIManager in another part of the UI definition by
94 * specifying the id of the #GtkUIManager in the "constructor" attribute and the
95 * name of the object in the "id" attribute.
97 * Objects must be given a name with the "id" attribute, which allows the
98 * application to retrieve them from the builder with gtk_builder_get_object().
99 * An id is also necessary to use the object as property value in other parts of
103 * Prior to 2.20, GtkBuilder was setting the "name" property of constructed widgets to the
104 * "id" attribute. In GTK+ 2.20 or newer, you have to use gtk_buildable_get_name() instead
105 * of gtk_widget_get_name() to obtain the "id", or set the "name" property in your UI
109 * Setting properties of objects is pretty straightforward with the
110 * <property> element: the "name" attribute specifies the name of the
111 * property, and the content of the element specifies the value. If the
112 * "translatable" attribute is set to a true value, GTK+ uses gettext() (or
113 * dgettext() if the builder has a translation domain set) to find a translation
114 * for the value. This happens before the value is parsed, so it can be used for
115 * properties of any type, but it is probably most useful for string properties.
116 * It is also possible to specify a context to disambiguate short strings, and
117 * comments which may help the translators.
119 * GtkBuilder can parse textual representations for the most common property
120 * types: characters, strings, integers, floating-point numbers, booleans
121 * (strings like "TRUE", "t", "yes", "y", "1" are interpreted as %TRUE, strings
122 * like "FALSE, "f", "no", "n", "0" are interpreted as %FALSE), enumerations
123 * (can be specified by their name, nick or integer value), flags (can be
124 * specified by their name, nick, integer value, optionally combined with "|",
125 * e.g. "GTK_VISIBLE|GTK_REALIZED") and colors (in a format understood by
126 * gdk_color_parse()). Objects can be referred to by their name. Pixbufs can be
127 * specified as a filename of an image file to load. In general, GtkBuilder
128 * allows forward references to objects — an object doesn't have to be
129 * constructed before it can be referred to. The exception to this rule is that
130 * an object has to be constructed before it can be used as the value of a
131 * construct-only property.
133 * Signal handlers are set up with the <signal> element. The "name"
134 * attribute specifies the name of the signal, and the "handler" attribute
135 * specifies the function to connect to the signal. By default, GTK+ tries to
136 * find the handler using g_module_symbol(), but this can be changed by passing
137 * a custom #GtkBuilderConnectFunc to gtk_builder_connect_signals_full(). The
138 * remaining attributes, "after", "swapped" and "object", have the same meaning
139 * as the corresponding parameters of the g_signal_connect_object() or
140 * g_signal_connect_data() functions. A "last_modification_time" attribute
141 * is also allowed, but it does not have a meaning to the builder.
143 * Sometimes it is necessary to refer to widgets which have implicitly been
144 * constructed by GTK+ as part of a composite widget, to set properties on them
145 * or to add further children (e.g. the @vbox of a #GtkDialog). This can be
146 * achieved by setting the "internal-child" propery of the <child> element
147 * to a true value. Note that GtkBuilder still requires an <object>
148 * element for the internal child, even if it has already been constructed.
150 * A number of widgets have different places where a child can be added (e.g.
151 * tabs vs. page content in notebooks). This can be reflected in a UI definition
152 * by specifying the "type" attribute on a <child>. The possible values
153 * for the "type" attribute are described in the sections describing the
154 * widget-specific portions of UI definitions.
157 * <title>A GtkBuilder UI Definition</title>
158 * <programlisting><![CDATA[
160 * <object class="GtkDialog" id="dialog1">
161 * <child internal-child="vbox">
162 * <object class="GtkVBox" id="vbox1">
163 * <property name="border-width">10</property>
164 * <child internal-child="action_area">
165 * <object class="GtkHButtonBox" id="hbuttonbox1">
166 * <property name="border-width">20</property>
168 * <object class="GtkButton" id="ok_button">
169 * <property name="label">gtk-ok</property>
170 * <property name="use-stock">TRUE</property>
171 * <signal name="clicked" handler="ok_button_clicked"/>
180 * ]]></programlisting>
183 * Beyond this general structure, several object classes define their own XML
184 * DTD fragments for filling in the ANY placeholders in the DTD above. Note that
185 * a custom element in a <child> element gets parsed by the custom tag
186 * handler of the parent object, while a custom element in an <object>
187 * element gets parsed by the custom tag handler of the object.
189 * These XML fragments are explained in the documentation of the respective
191 * <link linkend="GtkWidget-BUILDER-UI">GtkWidget</link>,
192 * <link linkend="GtkLabel-BUILDER-UI">GtkLabel</link>,
193 * <link linkend="GtkWindow-BUILDER-UI">GtkWindow</link>,
194 * <link linkend="GtkContainer-BUILDER-UI">GtkContainer</link>,
195 * <link linkend="GtkDialog-BUILDER-UI">GtkDialog</link>,
196 * <link linkend="GtkCellLayout-BUILDER-UI">GtkCellLayout</link>,
197 * <link linkend="GtkColorSelectionDialog-BUILDER-UI">GtkColorSelectionDialog</link>,
198 * <link linkend="GtkFontSelectionDialog-BUILDER-UI">GtkFontSelectionDialog</link>,
199 * <link linkend="GtkExpander-BUILDER-UI">GtkExpander</link>,
200 * <link linkend="GtkFrame-BUILDER-UI">GtkFrame</link>,
201 * <link linkend="GtkListStore-BUILDER-UI">GtkListStore</link>,
202 * <link linkend="GtkTreeStore-BUILDER-UI">GtkTreeStore</link>,
203 * <link linkend="GtkNotebook-BUILDER-UI">GtkNotebook</link>,
204 * <link linkend="GtkSizeGroup-BUILDER-UI">GtkSizeGroup</link>,
205 * <link linkend="GtkTreeView-BUILDER-UI">GtkTreeView</link>,
206 * <link linkend="GtkUIManager-BUILDER-UI">GtkUIManager</link>,
207 * <link linkend="GtkActionGroup-BUILDER-UI">GtkActionGroup</link>.
208 * <link linkend="GtkMenuItem-BUILDER-UI">GtkMenuItem</link>,
209 * <link linkend="GtkMenuToolButton-BUILDER-UI">GtkMenuToolButton</link>,
210 * <link linkend="GtkAssistant-BUILDER-UI">GtkAssistant</link>,
211 * <link linkend="GtkScale-BUILDER-UI">GtkScale</link>,
212 * <link linkend="GtkComboBoxText-BUILDER-UI">GtkComboBoxText</link>,
213 * <link linkend="GtkRecentFilter-BUILDER-UI">GtkRecentFilter</link>,
214 * <link linkend="GtkFileFilter-BUILDER-UI">GtkFileFilter</link>,
215 * <link linkend="GtkTextTagTable-BUILDER-UI">GtkTextTagTable</link>.
219 * <title>Embedding other XML</title>
221 * Apart from the language for UI descriptions that has been explained
222 * in the previous section, GtkBuilder can also parse XML fragments
223 * of <link linkend="gio-GMenu-Markup">GMenu markup</link>. The resulting
224 * #GMenu object and its named submenus are available via
225 * gtk_builder_get_object() like other constructed objects.
231 #include <errno.h> /* errno */
233 #include <string.h> /* strlen */
235 #include "gtkbuilder.h"
236 #include "gtkbuildable.h"
237 #include "gtkbuilderprivate.h"
238 #include "gtkdebug.h"
241 #include "gtkprivate.h"
242 #include "gtktypebuiltins.h"
243 #include "gtkwindow.h"
244 #include "gtkicontheme.h"
245 #include "gtkstock.h"
248 static void gtk_builder_class_init (GtkBuilderClass *klass);
249 static void gtk_builder_init (GtkBuilder *builder);
250 static void gtk_builder_finalize (GObject *object);
251 static void gtk_builder_set_property (GObject *object,
255 static void gtk_builder_get_property (GObject *object,
259 static GType gtk_builder_real_get_type_from_name (GtkBuilder *builder,
260 const gchar *type_name);
264 PROP_TRANSLATION_DOMAIN,
267 struct _GtkBuilderPrivate
271 GSList *delayed_properties;
274 gchar *resource_prefix;
277 G_DEFINE_TYPE (GtkBuilder, gtk_builder, G_TYPE_OBJECT)
280 gtk_builder_class_init (GtkBuilderClass *klass)
282 GObjectClass *gobject_class;
284 gobject_class = G_OBJECT_CLASS (klass);
286 gobject_class->finalize = gtk_builder_finalize;
287 gobject_class->set_property = gtk_builder_set_property;
288 gobject_class->get_property = gtk_builder_get_property;
290 klass->get_type_from_name = gtk_builder_real_get_type_from_name;
293 * GtkBuilder:translation-domain:
295 * The translation domain used when translating property values that
296 * have been marked as translatable in interface descriptions.
297 * If the translation domain is %NULL, #GtkBuilder uses gettext(),
298 * otherwise g_dgettext().
302 g_object_class_install_property (gobject_class,
303 PROP_TRANSLATION_DOMAIN,
304 g_param_spec_string ("translation-domain",
305 P_("Translation Domain"),
306 P_("The translation domain used by gettext"),
308 GTK_PARAM_READWRITE));
310 g_type_class_add_private (gobject_class, sizeof (GtkBuilderPrivate));
314 gtk_builder_init (GtkBuilder *builder)
316 builder->priv = G_TYPE_INSTANCE_GET_PRIVATE (builder, GTK_TYPE_BUILDER,
318 builder->priv->domain = NULL;
319 builder->priv->objects = g_hash_table_new_full (g_str_hash, g_str_equal,
320 g_free, g_object_unref);
325 * GObject virtual methods
329 gtk_builder_finalize (GObject *object)
331 GtkBuilderPrivate *priv = GTK_BUILDER (object)->priv;
333 g_free (priv->domain);
334 g_free (priv->filename);
335 g_free (priv->resource_prefix);
337 g_hash_table_destroy (priv->objects);
339 g_slist_foreach (priv->signals, (GFunc) _free_signal_info, NULL);
340 g_slist_free (priv->signals);
342 G_OBJECT_CLASS (gtk_builder_parent_class)->finalize (object);
346 gtk_builder_set_property (GObject *object,
351 GtkBuilder *builder = GTK_BUILDER (object);
355 case PROP_TRANSLATION_DOMAIN:
356 gtk_builder_set_translation_domain (builder, g_value_get_string (value));
359 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
365 gtk_builder_get_property (GObject *object,
370 GtkBuilder *builder = GTK_BUILDER (object);
374 case PROP_TRANSLATION_DOMAIN:
375 g_value_set_string (value, builder->priv->domain);
378 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
385 * Try to map a type name to a _get_type function
388 * GtkWindow -> gtk_window_get_type
389 * GtkHBox -> gtk_hbox_get_type
390 * GtkUIManager -> gtk_ui_manager_get_type
394 _gtk_builder_resolve_type_lazily (const gchar *name)
396 static GModule *module = NULL;
398 GString *symbol_name = g_string_new ("");
401 GType gtype = G_TYPE_INVALID;
404 module = g_module_open (NULL, 0);
406 for (i = 0; name[i] != '\0'; i++)
409 /* skip if uppercase, first or previous is uppercase */
410 if ((c == g_ascii_toupper (c) &&
411 i > 0 && name[i-1] != g_ascii_toupper (name[i-1])) ||
412 (i > 2 && name[i] == g_ascii_toupper (name[i]) &&
413 name[i-1] == g_ascii_toupper (name[i-1]) &&
414 name[i-2] == g_ascii_toupper (name[i-2])))
415 g_string_append_c (symbol_name, '_');
416 g_string_append_c (symbol_name, g_ascii_tolower (c));
418 g_string_append (symbol_name, "_get_type");
420 symbol = g_string_free (symbol_name, FALSE);
422 if (g_module_symbol (module, symbol, (gpointer)&func))
431 * GtkBuilder virtual methods
435 gtk_builder_real_get_type_from_name (GtkBuilder *builder,
436 const gchar *type_name)
440 gtype = g_type_from_name (type_name);
441 if (gtype != G_TYPE_INVALID)
444 return _gtk_builder_resolve_type_lazily (type_name);
455 gtk_builder_get_parameters (GtkBuilder *builder,
457 const gchar *object_name,
460 GArray **construct_parameters)
464 GObjectClass *oclass;
465 DelayedProperty *property;
466 GError *error = NULL;
468 oclass = g_type_class_ref (object_type);
469 g_assert (oclass != NULL);
471 *parameters = g_array_new (FALSE, FALSE, sizeof (GParameter));
472 *construct_parameters = g_array_new (FALSE, FALSE, sizeof (GParameter));
474 for (l = properties; l; l = l->next)
476 PropertyInfo *prop = (PropertyInfo*)l->data;
477 GParameter parameter = { NULL };
479 pspec = g_object_class_find_property (G_OBJECT_CLASS (oclass),
483 g_warning ("Unknown property: %s.%s",
484 g_type_name (object_type), prop->name);
488 parameter.name = prop->name;
490 if (G_IS_PARAM_SPEC_OBJECT (pspec) &&
491 (G_PARAM_SPEC_VALUE_TYPE (pspec) != GDK_TYPE_PIXBUF))
493 GObject *object = gtk_builder_get_object (builder, prop->data);
497 g_value_init (¶meter.value, G_OBJECT_TYPE (object));
498 g_value_set_object (¶meter.value, object);
502 if (pspec->flags & G_PARAM_CONSTRUCT_ONLY)
504 g_warning ("Failed to get constuct only property "
505 "%s of %s with value `%s'",
506 prop->name, object_name, prop->data);
509 /* Delay setting property */
510 property = g_slice_new (DelayedProperty);
511 property->object = g_strdup (object_name);
512 property->name = g_strdup (prop->name);
513 property->value = g_strdup (prop->data);
514 builder->priv->delayed_properties =
515 g_slist_prepend (builder->priv->delayed_properties, property);
519 else if (!gtk_builder_value_from_string (builder, pspec,
520 prop->data, ¶meter.value, &error))
522 g_warning ("Failed to set property %s.%s to %s: %s",
523 g_type_name (object_type), prop->name, prop->data,
525 g_error_free (error);
530 if (pspec->flags & (G_PARAM_CONSTRUCT | G_PARAM_CONSTRUCT_ONLY))
531 g_array_append_val (*construct_parameters, parameter);
533 g_array_append_val (*parameters, parameter);
536 g_type_class_unref (oclass);
540 gtk_builder_get_internal_child (GtkBuilder *builder,
542 const gchar *childname,
552 info = (ObjectInfo*)((ChildInfo*)info->parent)->parent;
557 g_print ("Trying to get internal child %s from %s\n",
559 gtk_buildable_get_name (GTK_BUILDABLE (info->object))));
561 if (GTK_IS_BUILDABLE (info->object))
562 obj = gtk_buildable_get_internal_child (GTK_BUILDABLE (info->object),
571 GTK_BUILDER_ERROR_INVALID_VALUE,
572 "Unknown internal child: %s", childname);
578 _gtk_builder_construct (GtkBuilder *builder,
582 GArray *parameters, *construct_parameters;
586 GtkBuildableIface *iface;
587 gboolean custom_set_property;
588 GtkBuildable *buildable;
590 g_assert (info->class_name != NULL);
591 object_type = gtk_builder_get_type_from_name (builder, info->class_name);
592 if (object_type == G_TYPE_INVALID)
596 GTK_BUILDER_ERROR_INVALID_VALUE,
597 "Invalid object type `%s'",
602 gtk_builder_get_parameters (builder, object_type,
606 &construct_parameters);
608 if (info->constructor)
610 GObject *constructor;
612 constructor = gtk_builder_get_object (builder, info->constructor);
613 if (constructor == NULL)
617 GTK_BUILDER_ERROR_INVALID_VALUE,
618 "Unknown object constructor for %s: %s",
621 g_array_free (parameters, TRUE);
622 g_array_free (construct_parameters, TRUE);
625 obj = gtk_buildable_construct_child (GTK_BUILDABLE (constructor),
628 g_assert (obj != NULL);
629 if (construct_parameters->len)
630 g_warning ("Can't pass in construct-only parameters to %s", info->id);
632 else if (info->parent && ((ChildInfo*)info->parent)->internal_child != NULL)
634 gchar *childname = ((ChildInfo*)info->parent)->internal_child;
635 obj = gtk_builder_get_internal_child (builder, info, childname, error);
638 g_array_free (parameters, TRUE);
639 g_array_free (construct_parameters, TRUE);
642 if (construct_parameters->len)
643 g_warning ("Can't pass in construct-only parameters to %s", childname);
648 obj = g_object_newv (object_type,
649 construct_parameters->len,
650 (GParameter *)construct_parameters->data);
652 /* No matter what, make sure we have a reference.
654 * If it's an initially unowned object, sink it.
655 * If it's not initially unowned then we have the reference already.
657 * In the case that this is a window it will be sunk already and
658 * this is effectively a call to g_object_ref(). That's what
661 if (G_IS_INITIALLY_UNOWNED (obj))
662 g_object_ref_sink (obj);
665 g_print ("created %s of type %s\n", info->id, info->class_name));
667 for (i = 0; i < construct_parameters->len; i++)
669 GParameter *param = &g_array_index (construct_parameters,
671 g_value_unset (¶m->value);
674 g_array_free (construct_parameters, TRUE);
676 custom_set_property = FALSE;
679 if (GTK_IS_BUILDABLE (obj))
681 buildable = GTK_BUILDABLE (obj);
682 iface = GTK_BUILDABLE_GET_IFACE (obj);
683 if (iface->set_buildable_property)
684 custom_set_property = TRUE;
687 for (i = 0; i < parameters->len; i++)
689 GParameter *param = &g_array_index (parameters, GParameter, i);
690 if (custom_set_property)
691 iface->set_buildable_property (buildable, builder, param->name, ¶m->value);
693 g_object_set_property (obj, param->name, ¶m->value);
696 if (gtk_get_debug_flags () & GTK_DEBUG_BUILDER)
698 gchar *str = g_strdup_value_contents ((const GValue*)¶m->value);
699 g_print ("set %s: %s = %s\n", info->id, param->name, str);
703 g_value_unset (¶m->value);
705 g_array_free (parameters, TRUE);
707 if (GTK_IS_BUILDABLE (obj))
708 gtk_buildable_set_name (buildable, info->id);
710 g_object_set_data_full (obj,
715 /* we already own a reference to obj. put it in the hash table. */
716 g_hash_table_insert (builder->priv->objects, g_strdup (info->id), obj);
722 _gtk_builder_add_object (GtkBuilder *builder,
726 g_hash_table_insert (builder->priv->objects, g_strdup (id), g_object_ref (object));
730 _gtk_builder_add (GtkBuilder *builder,
731 ChildInfo *child_info)
736 /* Internal children are already added
737 * Also prevent us from being called twice.
740 child_info->internal_child ||
744 object = child_info->object;
748 if (!child_info->parent)
750 g_warning ("%s: Not adding, No parent",
751 gtk_buildable_get_name (GTK_BUILDABLE (object)));
755 g_assert (object != NULL);
757 parent = ((ObjectInfo*)child_info->parent)->object;
758 g_assert (GTK_IS_BUILDABLE (parent));
761 g_print ("adding %s to %s\n",
762 gtk_buildable_get_name (GTK_BUILDABLE (object)),
763 gtk_buildable_get_name (GTK_BUILDABLE (parent))));
765 gtk_buildable_add_child (GTK_BUILDABLE (parent), builder, object,
768 child_info->added = TRUE;
772 _gtk_builder_add_signals (GtkBuilder *builder,
775 builder->priv->signals = g_slist_concat (builder->priv->signals,
776 g_slist_copy (signals));
780 gtk_builder_apply_delayed_properties (GtkBuilder *builder)
783 DelayedProperty *property;
786 GObjectClass *oclass;
789 /* take the list over from the builder->priv.
791 * g_slist_reverse does not copy the list, so the list now
792 * belongs to us (and we free it at the end of this function).
794 props = g_slist_reverse (builder->priv->delayed_properties);
795 builder->priv->delayed_properties = NULL;
797 for (l = props; l; l = l->next)
799 property = (DelayedProperty*)l->data;
800 object = g_hash_table_lookup (builder->priv->objects, property->object);
801 g_assert (object != NULL);
803 object_type = G_OBJECT_TYPE (object);
804 g_assert (object_type != G_TYPE_INVALID);
806 oclass = g_type_class_ref (object_type);
807 g_assert (oclass != NULL);
809 pspec = g_object_class_find_property (G_OBJECT_CLASS (oclass),
812 g_warning ("Unknown property: %s.%s", g_type_name (object_type),
818 obj = g_hash_table_lookup (builder->priv->objects, property->value);
820 g_warning ("No object called: %s", property->value);
822 g_object_set (object, property->name, obj, NULL);
824 g_free (property->value);
825 g_free (property->object);
826 g_free (property->name);
827 g_slice_free (DelayedProperty, property);
828 g_type_class_unref (oclass);
830 g_slist_free (props);
834 _gtk_builder_finish (GtkBuilder *builder)
836 gtk_builder_apply_delayed_properties (builder);
842 * Creates a new builder object.
844 * Return value: a new #GtkBuilder object
849 gtk_builder_new (void)
851 return g_object_new (GTK_TYPE_BUILDER, NULL);
855 * gtk_builder_add_from_file:
856 * @builder: a #GtkBuilder
857 * @filename: the name of the file to parse
858 * @error: (allow-none): return location for an error, or %NULL
860 * Parses a file containing a <link linkend="BUILDER-UI">GtkBuilder
861 * UI definition</link> and merges it with the current contents of @builder.
863 * Upon errors 0 will be returned and @error will be assigned a
864 * #GError from the #GTK_BUILDER_ERROR, #G_MARKUP_ERROR or #G_FILE_ERROR
867 * Returns: A positive value on success, 0 if an error occurred
872 gtk_builder_add_from_file (GtkBuilder *builder,
873 const gchar *filename,
880 g_return_val_if_fail (GTK_IS_BUILDER (builder), 0);
881 g_return_val_if_fail (filename != NULL, 0);
882 g_return_val_if_fail (error == NULL || *error == NULL, 0);
886 if (!g_file_get_contents (filename, &buffer, &length, &tmp_error))
888 g_propagate_error (error, tmp_error);
892 g_free (builder->priv->filename);
893 g_free (builder->priv->resource_prefix);
894 builder->priv->filename = g_strdup (filename);
895 builder->priv->resource_prefix = NULL;
897 _gtk_builder_parser_parse_buffer (builder, filename,
904 if (tmp_error != NULL)
906 g_propagate_error (error, tmp_error);
914 * gtk_builder_add_objects_from_file:
915 * @builder: a #GtkBuilder
916 * @filename: the name of the file to parse
917 * @object_ids: (array zero-terminated=1) (element-type utf8): nul-terminated array of objects to build
918 * @error: (allow-none): return location for an error, or %NULL
920 * Parses a file containing a <link linkend="BUILDER-UI">GtkBuilder
921 * UI definition</link> building only the requested objects and merges
922 * them with the current contents of @builder.
924 * Upon errors 0 will be returned and @error will be assigned a
925 * #GError from the #GTK_BUILDER_ERROR, #G_MARKUP_ERROR or #G_FILE_ERROR
929 * If you are adding an object that depends on an object that is not
930 * its child (for instance a #GtkTreeView that depends on its
931 * #GtkTreeModel), you have to explicitely list all of them in @object_ids.
934 * Returns: A positive value on success, 0 if an error occurred
939 gtk_builder_add_objects_from_file (GtkBuilder *builder,
940 const gchar *filename,
948 g_return_val_if_fail (GTK_IS_BUILDER (builder), 0);
949 g_return_val_if_fail (filename != NULL, 0);
950 g_return_val_if_fail (object_ids != NULL && object_ids[0] != NULL, 0);
951 g_return_val_if_fail (error == NULL || *error == NULL, 0);
955 if (!g_file_get_contents (filename, &buffer, &length, &tmp_error))
957 g_propagate_error (error, tmp_error);
961 g_free (builder->priv->filename);
962 g_free (builder->priv->resource_prefix);
963 builder->priv->filename = g_strdup (filename);
964 builder->priv->resource_prefix = NULL;
966 _gtk_builder_parser_parse_buffer (builder, filename,
973 if (tmp_error != NULL)
975 g_propagate_error (error, tmp_error);
983 * gtk_builder_add_from_resource:
984 * @builder: a #GtkBuilder
985 * @resource_path: the path of the resource file to parse
986 * @error: (allow-none): return location for an error, or %NULL
988 * Parses a resource file containing a <link linkend="BUILDER-UI">GtkBuilder
989 * UI definition</link> and merges it with the current contents of @builder.
991 * Upon errors 0 will be returned and @error will be assigned a
992 * #GError from the #GTK_BUILDER_ERROR, #G_MARKUP_ERROR or #G_RESOURCE_ERROR
995 * Returns: A positive value on success, 0 if an error occurred
1000 gtk_builder_add_from_resource (GtkBuilder *builder,
1001 const gchar *resource_path,
1006 char *filename_for_errors;
1009 g_return_val_if_fail (GTK_IS_BUILDER (builder), 0);
1010 g_return_val_if_fail (resource_path != NULL, 0);
1011 g_return_val_if_fail (error == NULL || *error == NULL, 0);
1015 data = g_resources_lookup_data (resource_path, 0, &tmp_error);
1018 g_propagate_error (error, tmp_error);
1022 g_free (builder->priv->filename);
1023 g_free (builder->priv->resource_prefix);
1024 builder->priv->filename = g_strdup (".");
1026 slash = strrchr (resource_path, '/');
1028 builder->priv->resource_prefix =
1029 g_strndup (resource_path, slash - resource_path + 1);
1031 builder->priv->resource_prefix =
1034 filename_for_errors = g_strconcat ("<resource>", resource_path, NULL);
1036 _gtk_builder_parser_parse_buffer (builder, filename_for_errors,
1037 g_bytes_get_data (data, NULL), g_bytes_get_size (data),
1041 g_free (filename_for_errors);
1042 g_bytes_unref (data);
1044 if (tmp_error != NULL)
1046 g_propagate_error (error, tmp_error);
1054 * gtk_builder_add_objects_from_resource:
1055 * @builder: a #GtkBuilder
1056 * @resource_path: the path of the resource file to parse
1057 * @object_ids: (array zero-terminated=1) (element-type utf8): nul-terminated array of objects to build
1058 * @error: (allow-none): return location for an error, or %NULL
1060 * Parses a resource file containing a <link linkend="BUILDER-UI">GtkBuilder
1061 * UI definition</link> building only the requested objects and merges
1062 * them with the current contents of @builder.
1064 * Upon errors 0 will be returned and @error will be assigned a
1065 * #GError from the #GTK_BUILDER_ERROR, #G_MARKUP_ERROR or #G_RESOURCE_ERROR
1069 * If you are adding an object that depends on an object that is not
1070 * its child (for instance a #GtkTreeView that depends on its
1071 * #GtkTreeModel), you have to explicitely list all of them in @object_ids.
1074 * Returns: A positive value on success, 0 if an error occurred
1079 gtk_builder_add_objects_from_resource (GtkBuilder *builder,
1080 const gchar *resource_path,
1086 char *filename_for_errors;
1089 g_return_val_if_fail (GTK_IS_BUILDER (builder), 0);
1090 g_return_val_if_fail (resource_path != NULL, 0);
1091 g_return_val_if_fail (object_ids != NULL && object_ids[0] != NULL, 0);
1092 g_return_val_if_fail (error == NULL || *error == NULL, 0);
1096 data = g_resources_lookup_data (resource_path, 0, &tmp_error);
1099 g_propagate_error (error, tmp_error);
1103 g_free (builder->priv->filename);
1104 g_free (builder->priv->resource_prefix);
1105 builder->priv->filename = g_strdup (".");
1107 slash = strrchr (resource_path, '/');
1109 builder->priv->resource_prefix =
1110 g_strndup (resource_path, slash - resource_path + 1);
1112 builder->priv->resource_prefix =
1115 filename_for_errors = g_strconcat ("<resource>", resource_path, NULL);
1117 _gtk_builder_parser_parse_buffer (builder, filename_for_errors,
1118 g_bytes_get_data (data, NULL), g_bytes_get_size (data),
1121 g_free (filename_for_errors);
1122 g_bytes_unref (data);
1124 if (tmp_error != NULL)
1126 g_propagate_error (error, tmp_error);
1134 * gtk_builder_add_from_string:
1135 * @builder: a #GtkBuilder
1136 * @buffer: the string to parse
1137 * @length: the length of @buffer (may be -1 if @buffer is nul-terminated)
1138 * @error: (allow-none): return location for an error, or %NULL
1140 * Parses a string containing a <link linkend="BUILDER-UI">GtkBuilder
1141 * UI definition</link> and merges it with the current contents of @builder.
1143 * Upon errors 0 will be returned and @error will be assigned a
1144 * #GError from the #GTK_BUILDER_ERROR or #G_MARKUP_ERROR domain.
1146 * Returns: A positive value on success, 0 if an error occurred
1151 gtk_builder_add_from_string (GtkBuilder *builder,
1152 const gchar *buffer,
1158 g_return_val_if_fail (GTK_IS_BUILDER (builder), 0);
1159 g_return_val_if_fail (buffer != NULL, 0);
1160 g_return_val_if_fail (error == NULL || *error == NULL, 0);
1164 g_free (builder->priv->filename);
1165 g_free (builder->priv->resource_prefix);
1166 builder->priv->filename = g_strdup (".");
1167 builder->priv->resource_prefix = NULL;
1169 _gtk_builder_parser_parse_buffer (builder, "<input>",
1173 if (tmp_error != NULL)
1175 g_propagate_error (error, tmp_error);
1183 * gtk_builder_add_objects_from_string:
1184 * @builder: a #GtkBuilder
1185 * @buffer: the string to parse
1186 * @length: the length of @buffer (may be -1 if @buffer is nul-terminated)
1187 * @object_ids: (array zero-terminated=1) (element-type utf8): nul-terminated array of objects to build
1188 * @error: (allow-none): return location for an error, or %NULL
1190 * Parses a string containing a <link linkend="BUILDER-UI">GtkBuilder
1191 * UI definition</link> building only the requested objects and merges
1192 * them with the current contents of @builder.
1194 * Upon errors 0 will be returned and @error will be assigned a
1195 * #GError from the #GTK_BUILDER_ERROR or #G_MARKUP_ERROR domain.
1198 * If you are adding an object that depends on an object that is not
1199 * its child (for instance a #GtkTreeView that depends on its
1200 * #GtkTreeModel), you have to explicitely list all of them in @object_ids.
1203 * Returns: A positive value on success, 0 if an error occurred
1208 gtk_builder_add_objects_from_string (GtkBuilder *builder,
1209 const gchar *buffer,
1216 g_return_val_if_fail (GTK_IS_BUILDER (builder), 0);
1217 g_return_val_if_fail (buffer != NULL, 0);
1218 g_return_val_if_fail (object_ids != NULL && object_ids[0] != NULL, 0);
1219 g_return_val_if_fail (error == NULL || *error == NULL, 0);
1223 g_free (builder->priv->filename);
1224 g_free (builder->priv->resource_prefix);
1225 builder->priv->filename = g_strdup (".");
1226 builder->priv->resource_prefix = NULL;
1228 _gtk_builder_parser_parse_buffer (builder, "<input>",
1233 if (tmp_error != NULL)
1235 g_propagate_error (error, tmp_error);
1243 * gtk_builder_get_object:
1244 * @builder: a #GtkBuilder
1245 * @name: name of object to get
1247 * Gets the object named @name. Note that this function does not
1248 * increment the reference count of the returned object.
1250 * Return value: (transfer none): the object named @name or %NULL if
1251 * it could not be found in the object tree.
1256 gtk_builder_get_object (GtkBuilder *builder,
1259 g_return_val_if_fail (GTK_IS_BUILDER (builder), NULL);
1260 g_return_val_if_fail (name != NULL, NULL);
1262 return g_hash_table_lookup (builder->priv->objects, name);
1266 object_add_to_list (gchar *object_id,
1270 *list = g_slist_prepend (*list, object);
1274 * gtk_builder_get_objects:
1275 * @builder: a #GtkBuilder
1277 * Gets all objects that have been constructed by @builder. Note that
1278 * this function does not increment the reference counts of the returned
1281 * Return value: (element-type GObject) (transfer container): a newly-allocated #GSList containing all the objects
1282 * constructed by the #GtkBuilder instance. It should be freed by
1288 gtk_builder_get_objects (GtkBuilder *builder)
1290 GSList *objects = NULL;
1292 g_return_val_if_fail (GTK_IS_BUILDER (builder), NULL);
1294 g_hash_table_foreach (builder->priv->objects, (GHFunc)object_add_to_list, &objects);
1296 return g_slist_reverse (objects);
1300 * gtk_builder_set_translation_domain:
1301 * @builder: a #GtkBuilder
1302 * @domain: (allow-none): the translation domain or %NULL
1304 * Sets the translation domain of @builder.
1305 * See #GtkBuilder:translation-domain.
1310 gtk_builder_set_translation_domain (GtkBuilder *builder,
1311 const gchar *domain)
1315 g_return_if_fail (GTK_IS_BUILDER (builder));
1317 new_domain = g_strdup (domain);
1318 g_free (builder->priv->domain);
1319 builder->priv->domain = new_domain;
1321 g_object_notify (G_OBJECT (builder), "translation-domain");
1325 * gtk_builder_get_translation_domain:
1326 * @builder: a #GtkBuilder
1328 * Gets the translation domain of @builder.
1330 * Return value: the translation domain. This string is owned
1331 * by the builder object and must not be modified or freed.
1336 gtk_builder_get_translation_domain (GtkBuilder *builder)
1338 g_return_val_if_fail (GTK_IS_BUILDER (builder), NULL);
1340 return builder->priv->domain;
1349 gtk_builder_connect_signals_default (GtkBuilder *builder,
1351 const gchar *signal_name,
1352 const gchar *handler_name,
1353 GObject *connect_object,
1354 GConnectFlags flags,
1358 connect_args *args = (connect_args*)user_data;
1360 if (!g_module_symbol (args->module, handler_name, (gpointer)&func))
1362 g_warning ("Could not find signal handler '%s'", handler_name);
1367 g_signal_connect_object (object, signal_name, func, connect_object, flags);
1369 g_signal_connect_data (object, signal_name, func, args->data, NULL, flags);
1374 * gtk_builder_connect_signals:
1375 * @builder: a #GtkBuilder
1376 * @user_data: a pointer to a structure sent in as user data to all signals
1378 * This method is a simpler variation of gtk_builder_connect_signals_full().
1379 * It uses #GModule's introspective features (by opening the module %NULL)
1380 * to look at the application's symbol table. From here it tries to match
1381 * the signal handler names given in the interface description with
1382 * symbols in the application and connects the signals. Note that this
1383 * function can only be called once, subsequent calls will do nothing.
1385 * Note that this function will not work correctly if #GModule is not
1386 * supported on the platform.
1388 * When compiling applications for Windows, you must declare signal callbacks
1389 * with #G_MODULE_EXPORT, or they will not be put in the symbol table.
1390 * On Linux and Unices, this is not necessary; applications should instead
1391 * be compiled with the -Wl,--export-dynamic CFLAGS, and linked against
1392 * gmodule-export-2.0.
1397 gtk_builder_connect_signals (GtkBuilder *builder,
1402 g_return_if_fail (GTK_IS_BUILDER (builder));
1404 if (!g_module_supported ())
1405 g_error ("gtk_builder_connect_signals() requires working GModule");
1407 args = g_slice_new0 (connect_args);
1408 args->module = g_module_open (NULL, G_MODULE_BIND_LAZY);
1409 args->data = user_data;
1411 gtk_builder_connect_signals_full (builder,
1412 gtk_builder_connect_signals_default,
1414 g_module_close (args->module);
1416 g_slice_free (connect_args, args);
1420 * GtkBuilderConnectFunc:
1421 * @builder: a #GtkBuilder
1422 * @object: object to connect a signal to
1423 * @signal_name: name of the signal
1424 * @handler_name: name of the handler
1425 * @connect_object: a #GObject, if non-%NULL, use g_signal_connect_object()
1426 * @flags: #GConnectFlags to use
1427 * @user_data: user data
1429 * This is the signature of a function used to connect signals. It is used
1430 * by the gtk_builder_connect_signals() and gtk_builder_connect_signals_full()
1431 * methods. It is mainly intended for interpreted language bindings, but
1432 * could be useful where the programmer wants more control over the signal
1433 * connection process. Note that this function can only be called once,
1434 * subsequent calls will do nothing.
1440 * gtk_builder_connect_signals_full:
1441 * @builder: a #GtkBuilder
1442 * @func: (scope call): the function used to connect the signals
1443 * @user_data: arbitrary data that will be passed to the connection function
1445 * This function can be thought of the interpreted language binding
1446 * version of gtk_builder_connect_signals(), except that it does not
1447 * require GModule to function correctly.
1452 gtk_builder_connect_signals_full (GtkBuilder *builder,
1453 GtkBuilderConnectFunc func,
1458 GObject *connect_object;
1460 g_return_if_fail (GTK_IS_BUILDER (builder));
1461 g_return_if_fail (func != NULL);
1463 if (!builder->priv->signals)
1466 builder->priv->signals = g_slist_reverse (builder->priv->signals);
1467 for (l = builder->priv->signals; l; l = l->next)
1469 SignalInfo *signal = (SignalInfo*)l->data;
1471 g_assert (signal != NULL);
1472 g_assert (signal->name != NULL);
1474 object = g_hash_table_lookup (builder->priv->objects,
1475 signal->object_name);
1476 g_assert (object != NULL);
1478 connect_object = NULL;
1480 if (signal->connect_object_name)
1482 connect_object = g_hash_table_lookup (builder->priv->objects,
1483 signal->connect_object_name);
1484 if (!connect_object)
1485 g_warning ("Could not lookup object %s on signal %s of object %s",
1486 signal->connect_object_name, signal->name,
1487 signal->object_name);
1490 func (builder, object, signal->name, signal->handler,
1491 connect_object, signal->flags, user_data);
1494 g_slist_foreach (builder->priv->signals, (GFunc)_free_signal_info, NULL);
1495 g_slist_free (builder->priv->signals);
1496 builder->priv->signals = NULL;
1500 * gtk_builder_value_from_string:
1501 * @builder: a #GtkBuilder
1502 * @pspec: the #GParamSpec for the property
1503 * @string: the string representation of the value
1504 * @value: (out): the #GValue to store the result in
1505 * @error: (allow-none): return location for an error, or %NULL
1507 * This function demarshals a value from a string. This function
1508 * calls g_value_init() on the @value argument, so it need not be
1509 * initialised beforehand.
1511 * This function can handle char, uchar, boolean, int, uint, long,
1512 * ulong, enum, flags, float, double, string, #GdkColor, #GdkRGBA and
1513 * #GtkAdjustment type values. Support for #GtkWidget type values is
1516 * Upon errors %FALSE will be returned and @error will be assigned a
1517 * #GError from the #GTK_BUILDER_ERROR domain.
1519 * Returns: %TRUE on success
1524 gtk_builder_value_from_string (GtkBuilder *builder,
1526 const gchar *string,
1530 g_return_val_if_fail (GTK_IS_BUILDER (builder), FALSE);
1531 g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1532 g_return_val_if_fail (string != NULL, FALSE);
1533 g_return_val_if_fail (value != NULL, FALSE);
1534 g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
1537 * GParamSpecUnichar has the internal type G_TYPE_UINT,
1538 * so we cannot handle this in the switch, do it separately
1540 if (G_IS_PARAM_SPEC_UNICHAR (pspec))
1543 g_value_init (value, G_TYPE_UINT);
1544 c = g_utf8_get_char_validated (string, strlen (string));
1546 g_value_set_uint (value, c);
1551 * GParamSpecVariant can specify a GVariantType which can help with
1552 * parsing, so we need to take care of that here.
1554 if (G_IS_PARAM_SPEC_VARIANT (pspec))
1556 GParamSpecVariant *variant_pspec = G_PARAM_SPEC_VARIANT (pspec);
1557 const GVariantType *type;
1560 g_value_init (value, G_TYPE_VARIANT);
1562 /* The GVariant parser doesn't deal with indefinite types */
1563 if (g_variant_type_is_definite (variant_pspec->type))
1564 type = variant_pspec->type;
1568 variant = g_variant_parse (type, string, NULL, NULL, error);
1569 if (variant == NULL)
1571 g_value_take_variant (value, variant);
1575 return gtk_builder_value_from_string_type (builder,
1576 G_PARAM_SPEC_VALUE_TYPE (pspec),
1577 string, value, error);
1581 * gtk_builder_value_from_string_type:
1582 * @builder: a #GtkBuilder
1583 * @type: the #GType of the value
1584 * @string: the string representation of the value
1585 * @value: (out): the #GValue to store the result in
1586 * @error: (allow-none): return location for an error, or %NULL
1588 * Like gtk_builder_value_from_string(), this function demarshals
1589 * a value from a string, but takes a #GType instead of #GParamSpec.
1590 * This function calls g_value_init() on the @value argument, so it
1591 * need not be initialised beforehand.
1593 * Upon errors %FALSE will be returned and @error will be assigned a
1594 * #GError from the #GTK_BUILDER_ERROR domain.
1596 * Returns: %TRUE on success
1601 gtk_builder_value_from_string_type (GtkBuilder *builder,
1603 const gchar *string,
1607 gboolean ret = TRUE;
1609 g_return_val_if_fail (type != G_TYPE_INVALID, FALSE);
1610 g_return_val_if_fail (string != NULL, FALSE);
1611 g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
1613 g_value_init (value, type);
1615 switch (G_TYPE_FUNDAMENTAL (type))
1618 g_value_set_schar (value, string[0]);
1621 g_value_set_uchar (value, (guchar)string[0]);
1623 case G_TYPE_BOOLEAN:
1627 if (!_gtk_builder_boolean_from_string (string, &b, error))
1632 g_value_set_boolean (value, b);
1639 gchar *endptr = NULL;
1641 l = g_ascii_strtoll (string, &endptr, 0);
1642 if (errno || endptr == string)
1646 GTK_BUILDER_ERROR_INVALID_VALUE,
1647 "Could not parse integer `%s'",
1652 if (G_VALUE_HOLDS_INT (value))
1653 g_value_set_int (value, l);
1655 g_value_set_long (value, l);
1662 gchar *endptr = NULL;
1664 ul = g_ascii_strtoull (string, &endptr, 0);
1665 if (errno || endptr == string)
1669 GTK_BUILDER_ERROR_INVALID_VALUE,
1670 "Could not parse unsigned integer `%s'",
1675 if (G_VALUE_HOLDS_UINT (value))
1676 g_value_set_uint (value, ul);
1678 g_value_set_ulong (value, ul);
1684 if (!_gtk_builder_enum_from_string (type, string, &enum_value, error))
1689 g_value_set_enum (value, enum_value);
1696 if (!_gtk_builder_flags_from_string (type, string, &flags_value, error))
1701 g_value_set_flags (value, flags_value);
1708 gchar *endptr = NULL;
1710 d = g_ascii_strtod (string, &endptr);
1711 if (errno || endptr == string)
1715 GTK_BUILDER_ERROR_INVALID_VALUE,
1716 "Could not parse double `%s'",
1721 if (G_VALUE_HOLDS_FLOAT (value))
1722 g_value_set_float (value, d);
1724 g_value_set_double (value, d);
1728 g_value_set_string (value, string);
1730 case G_TYPE_VARIANT:
1734 variant = g_variant_parse (NULL, string, NULL, NULL, error);
1736 g_value_take_variant (value, variant);
1742 if (G_VALUE_HOLDS (value, GDK_TYPE_COLOR))
1744 GdkColor color = { 0, };
1746 if (gdk_color_parse (string, &color))
1747 g_value_set_boxed (value, &color);
1752 GTK_BUILDER_ERROR_INVALID_VALUE,
1753 "Could not parse color `%s'",
1758 else if (G_VALUE_HOLDS (value, GDK_TYPE_RGBA))
1760 GdkRGBA rgba = { 0 };
1762 if (gdk_rgba_parse (&rgba, string))
1763 g_value_set_boxed (value, &rgba);
1768 GTK_BUILDER_ERROR_INVALID_VALUE,
1769 "Could not parse RGBA color '%s'",
1774 else if (G_VALUE_HOLDS (value, G_TYPE_STRV))
1776 gchar **vector = g_strsplit (string, "\n", 0);
1777 g_value_take_boxed (value, vector);
1783 GTK_BUILDER_ERROR_INVALID_VALUE,
1784 "Could not parse '%s' as a %s",
1785 string, G_VALUE_TYPE_NAME (value));
1790 if (G_VALUE_HOLDS (value, GDK_TYPE_PIXBUF))
1793 GError *tmp_error = NULL;
1794 GdkPixbuf *pixbuf = NULL;
1796 if (gtk_builder_get_object (builder, string))
1800 GTK_BUILDER_ERROR_INVALID_VALUE,
1801 "Could not load image '%s': "
1802 " '%s' is already used as object id",
1807 filename = _gtk_builder_get_resource_path (builder, string);
1808 if (filename != NULL)
1810 GInputStream *stream = g_resources_open_stream (filename, 0, &tmp_error);
1813 pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, &tmp_error);
1814 g_object_unref (stream);
1819 filename = _gtk_builder_get_absolute_filename (builder, string);
1820 pixbuf = gdk_pixbuf_new_from_file (filename, &tmp_error);
1825 GtkIconTheme *theme;
1827 g_warning ("Could not load image '%s': %s",
1828 string, tmp_error->message);
1829 g_error_free (tmp_error);
1831 /* fall back to a missing image */
1832 theme = gtk_icon_theme_get_default ();
1833 pixbuf = gtk_icon_theme_load_icon (theme,
1834 GTK_STOCK_MISSING_IMAGE,
1836 GTK_ICON_LOOKUP_USE_BUILTIN,
1842 g_value_set_object (value, pixbuf);
1843 g_object_unref (G_OBJECT (pixbuf));
1858 /* Catch unassigned error for object types as well as any unsupported types.
1859 * While parsing GtkBuilder; object types are deserialized
1860 * without calling gtk_builder_value_from_string_type().
1862 if (!ret && error && *error == NULL)
1865 GTK_BUILDER_ERROR_INVALID_VALUE,
1866 "Unsupported GType `%s'", g_type_name (type));
1872 _gtk_builder_enum_from_string (GType type,
1873 const gchar *string,
1883 g_return_val_if_fail (G_TYPE_IS_ENUM (type), FALSE);
1884 g_return_val_if_fail (string != NULL, FALSE);
1890 value = g_ascii_strtoull (string, &endptr, 0);
1891 if (errno == 0 && endptr != string) /* parsed a number */
1892 *enum_value = value;
1895 eclass = g_type_class_ref (type);
1896 ev = g_enum_get_value_by_name (eclass, string);
1898 ev = g_enum_get_value_by_nick (eclass, string);
1901 *enum_value = ev->value;
1906 GTK_BUILDER_ERROR_INVALID_VALUE,
1907 "Could not parse enum: `%s'",
1912 g_type_class_unref (eclass);
1919 _gtk_builder_flags_from_string (GType type,
1920 const gchar *string,
1924 GFlagsClass *fclass;
1925 gchar *endptr, *prevptr;
1933 g_return_val_if_fail (G_TYPE_IS_FLAGS (type), FALSE);
1934 g_return_val_if_fail (string != 0, FALSE);
1940 value = g_ascii_strtoull (string, &endptr, 0);
1941 if (errno == 0 && endptr != string) /* parsed a number */
1942 *flags_value = value;
1945 fclass = g_type_class_ref (type);
1947 flagstr = g_strdup (string);
1948 for (value = i = j = 0; ; i++)
1951 eos = flagstr[i] == '\0';
1953 if (!eos && flagstr[i] != '|')
1957 endptr = &flagstr[i];
1961 flagstr[i++] = '\0';
1968 ch = g_utf8_get_char (flag);
1969 if (!g_unichar_isspace (ch))
1971 flag = g_utf8_next_char (flag);
1974 while (endptr > flag)
1976 prevptr = g_utf8_prev_char (endptr);
1977 ch = g_utf8_get_char (prevptr);
1978 if (!g_unichar_isspace (ch))
1986 fv = g_flags_get_value_by_name (fclass, flag);
1989 fv = g_flags_get_value_by_nick (fclass, flag);
1997 GTK_BUILDER_ERROR_INVALID_VALUE,
1998 "Unknown flag: `%s'",
2007 *flags_value = value;
2014 g_type_class_unref (fclass);
2021 * gtk_builder_get_type_from_name:
2022 * @builder: a #GtkBuilder
2023 * @type_name: type name to lookup
2025 * Looks up a type by name, using the virtual function that
2026 * #GtkBuilder has for that purpose. This is mainly used when
2027 * implementing the #GtkBuildable interface on a type.
2029 * Returns: the #GType found for @type_name or #G_TYPE_INVALID
2030 * if no type was found
2035 gtk_builder_get_type_from_name (GtkBuilder *builder,
2036 const gchar *type_name)
2038 g_return_val_if_fail (GTK_IS_BUILDER (builder), G_TYPE_INVALID);
2039 g_return_val_if_fail (type_name != NULL, G_TYPE_INVALID);
2041 return GTK_BUILDER_GET_CLASS (builder)->get_type_from_name (builder, type_name);
2045 gtk_builder_error_quark (void)
2047 return g_quark_from_static_string ("gtk-builder-error-quark");
2051 _gtk_builder_get_resource_path (GtkBuilder *builder, const gchar *string)
2053 if (g_str_has_prefix (string, "resource:///"))
2054 return g_uri_unescape_string (string + 11, "/");
2056 if (g_path_is_absolute (string) ||
2057 builder->priv->resource_prefix == NULL)
2060 return g_build_path ("/", builder->priv->resource_prefix, string, NULL);
2064 _gtk_builder_get_absolute_filename (GtkBuilder *builder, const gchar *string)
2067 gchar *dirname = NULL;
2069 if (g_path_is_absolute (string))
2070 return g_strdup (string);
2072 if (builder->priv->filename &&
2073 strcmp (builder->priv->filename, ".") != 0)
2075 dirname = g_path_get_dirname (builder->priv->filename);
2077 if (strcmp (dirname, ".") == 0)
2080 dirname = g_get_current_dir ();
2084 dirname = g_get_current_dir ();
2086 filename = g_build_filename (dirname, string, NULL);