forked from AuroraMiddleware/gtk
Add GtkWidgetPath.
GtkWidgetPath represents a widget path. It will mainly used by theming engines to know detail about the widget hierarchy without actually accessing the widget.
This commit is contained in:
Carlos Garnacho
parent
835cc7049c
commit
61360dfddf
@ -338,6 +338,7 @@ gtk_public_h_sources = \
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gtkvscrollbar.h \
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gtkvseparator.h \
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gtkwidget.h \
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gtkwidgetpath.h \
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gtkwindow.h
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if OS_UNIX
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@ -646,6 +647,7 @@ gtk_base_c_sources = \
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gtkvscrollbar.c \
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gtkvseparator.c \
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gtkwidget.c \
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gtkwidgetpath.c \
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gtkwindow-decorate.c \
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gtkwindow.c \
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$(gtk_clipboard_dnd_c_sources) \
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@ -221,6 +221,7 @@
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#include <gtk/gtkvscrollbar.h>
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#include <gtk/gtkvseparator.h>
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#include <gtk/gtkwidget.h>
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#include <gtk/gtkwidgetpath.h>
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#include <gtk/gtkwindow.h>
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#undef __GTK_H_INSIDE__
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182
gtk/gtkwidgetpath.c
Normal file
182
gtk/gtkwidgetpath.c
Normal file
@ -0,0 +1,182 @@
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/* GTK - The GIMP Toolkit
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* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#include "gtkwidget.h"
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#include "gtkwidgetpath.h"
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typedef struct GtkPathElement GtkPathElement;
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struct GtkPathElement
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{
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GType type;
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gchar *name;
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};
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struct GtkWidgetPath
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{
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GSList *elems;
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GSList *last; /* Last element contains the described widget */
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};
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GtkWidgetPath *
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gtk_widget_path_new (void)
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{
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GtkWidgetPath *path;
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path = g_slice_new0 (GtkWidgetPath);
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return path;
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}
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static GtkPathElement *
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path_element_new (GType type,
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const gchar *name)
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{
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GtkPathElement *elem;
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elem = g_slice_new (GtkPathElement);
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elem->type = type;
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elem->name = g_strdup (name);
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return elem;
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}
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static void
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path_element_free (GtkPathElement *elem)
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{
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g_free (elem->name);
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g_slice_free (GtkPathElement, elem);
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}
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void
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gtk_widget_path_prepend_widget_desc (GtkWidgetPath *path,
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GType type,
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const gchar *name)
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{
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g_return_if_fail (path != NULL);
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g_return_if_fail (g_type_is_a (type, GTK_TYPE_WIDGET));
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if (!path->elems)
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{
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path->elems = g_slist_prepend (NULL, path_element_new (type, name));
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path->last = path->elems;
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}
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else
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{
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path->last->next = g_slist_alloc ();
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path->last->next->data = path_element_new (type, name);
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path->last = path->last->next;
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}
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}
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GtkWidgetPath *
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gtk_widget_path_copy (GtkWidgetPath *path)
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{
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GtkWidgetPath *new_path;
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GSList *elems;
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new_path = gtk_widget_path_new ();
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elems = path->elems;
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while (elems)
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{
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GtkPathElement *elem;
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GSList *link;
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elem = elems->data;
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link = g_slist_alloc ();
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link->data = path_element_new (elem->type, elem->name);
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if (!new_path->elems)
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new_path->last = new_path->elems = link;
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else
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{
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new_path->last->next = link;
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new_path->last = link;
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}
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elems = elems->next;
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}
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return new_path;
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}
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void
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gtk_widget_path_free (GtkWidgetPath *path)
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{
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g_return_if_fail (path != NULL);
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g_slist_foreach (path->elems, (GFunc) path_element_free, NULL);
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g_slist_free (path->elems);
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g_slice_free (GtkWidgetPath, path);
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}
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gboolean
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gtk_widget_path_has_parent (GtkWidgetPath *path,
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GType type)
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{
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g_return_val_if_fail (path != NULL, FALSE);
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g_return_val_if_fail (g_type_is_a (type, GTK_TYPE_WIDGET), FALSE);
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GSList *elems = path->elems;
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while (elems)
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{
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GtkPathElement *elem;
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elem = elems->data;
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if (elem->type == type ||
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g_type_is_a (elem->type, type))
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return TRUE;
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elems = elems->next;
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}
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return FALSE;
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}
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void
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gtk_widget_path_foreach (GtkWidgetPath *path,
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GtkWidgetPathForeachFunc func,
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gpointer user_data)
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{
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GSList *elems;
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g_return_if_fail (path != NULL);
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g_return_if_fail (func != NULL);
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elems = path->elems;
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while (elems)
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{
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GtkPathElement *elem;
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elem = elems->data;
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elems = elems->next;
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if ((func) (elem->type, elem->name, user_data))
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return;
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}
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}
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52
gtk/gtkwidgetpath.h
Normal file
52
gtk/gtkwidgetpath.h
Normal file
@ -0,0 +1,52 @@
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/* GTK - The GIMP Toolkit
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* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GTK_WIDGET_PATH_H__
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#define __GTK_WIDGET_PATH_H__
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#include <glib-object.h>
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G_BEGIN_DECLS
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typedef struct GtkWidgetPath GtkWidgetPath;
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typedef gboolean (* GtkWidgetPathForeachFunc) (GType type,
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const gchar *name,
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gpointer user_data);
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GtkWidgetPath * gtk_widget_path_new (void);
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void gtk_widget_path_prepend_widget_desc (GtkWidgetPath *path,
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GType type,
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const gchar *name);
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GtkWidgetPath * gtk_widget_path_copy (GtkWidgetPath *path);
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void gtk_widget_path_free (GtkWidgetPath *path);
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gboolean gtk_widget_path_has_parent (GtkWidgetPath *path,
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GType type);
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void gtk_widget_path_foreach (GtkWidgetPath *path,
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GtkWidgetPathForeachFunc func,
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gpointer user_data);
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G_END_DECLS
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#endif /* __GTK_WIDGET_PATH_H__ */
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