Commit 61360dfd authored by Carlos Garnacho's avatar Carlos Garnacho

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.
parent 835cc704
......@@ -338,6 +338,7 @@ gtk_public_h_sources = \
gtkvscrollbar.h \
gtkvseparator.h \
gtkwidget.h \
gtkwidgetpath.h \
gtkwindow.h
if OS_UNIX
......@@ -646,6 +647,7 @@ gtk_base_c_sources = \
gtkvscrollbar.c \
gtkvseparator.c \
gtkwidget.c \
gtkwidgetpath.c \
gtkwindow-decorate.c \
gtkwindow.c \
$(gtk_clipboard_dnd_c_sources) \
......
......@@ -221,6 +221,7 @@
#include <gtk/gtkvscrollbar.h>
#include <gtk/gtkvseparator.h>
#include <gtk/gtkwidget.h>
#include <gtk/gtkwidgetpath.h>
#include <gtk/gtkwindow.h>
#undef __GTK_H_INSIDE__
......
/* GTK - The GIMP Toolkit
* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include "gtkwidget.h"
#include "gtkwidgetpath.h"
typedef struct GtkPathElement GtkPathElement;
struct GtkPathElement
{
GType type;
gchar *name;
};
struct GtkWidgetPath
{
GSList *elems;
GSList *last; /* Last element contains the described widget */
};
GtkWidgetPath *
gtk_widget_path_new (void)
{
GtkWidgetPath *path;
path = g_slice_new0 (GtkWidgetPath);
return path;
}
static GtkPathElement *
path_element_new (GType type,
const gchar *name)
{
GtkPathElement *elem;
elem = g_slice_new (GtkPathElement);
elem->type = type;
elem->name = g_strdup (name);
return elem;
}
static void
path_element_free (GtkPathElement *elem)
{
g_free (elem->name);
g_slice_free (GtkPathElement, elem);
}
void
gtk_widget_path_prepend_widget_desc (GtkWidgetPath *path,
GType type,
const gchar *name)
{
g_return_if_fail (path != NULL);
g_return_if_fail (g_type_is_a (type, GTK_TYPE_WIDGET));
if (!path->elems)
{
path->elems = g_slist_prepend (NULL, path_element_new (type, name));
path->last = path->elems;
}
else
{
path->last->next = g_slist_alloc ();
path->last->next->data = path_element_new (type, name);
path->last = path->last->next;
}
}
GtkWidgetPath *
gtk_widget_path_copy (GtkWidgetPath *path)
{
GtkWidgetPath *new_path;
GSList *elems;
new_path = gtk_widget_path_new ();
elems = path->elems;
while (elems)
{
GtkPathElement *elem;
GSList *link;
elem = elems->data;
link = g_slist_alloc ();
link->data = path_element_new (elem->type, elem->name);
if (!new_path->elems)
new_path->last = new_path->elems = link;
else
{
new_path->last->next = link;
new_path->last = link;
}
elems = elems->next;
}
return new_path;
}
void
gtk_widget_path_free (GtkWidgetPath *path)
{
g_return_if_fail (path != NULL);
g_slist_foreach (path->elems, (GFunc) path_element_free, NULL);
g_slist_free (path->elems);
g_slice_free (GtkWidgetPath, path);
}
gboolean
gtk_widget_path_has_parent (GtkWidgetPath *path,
GType type)
{
g_return_val_if_fail (path != NULL, FALSE);
g_return_val_if_fail (g_type_is_a (type, GTK_TYPE_WIDGET), FALSE);
GSList *elems = path->elems;
while (elems)
{
GtkPathElement *elem;
elem = elems->data;
if (elem->type == type ||
g_type_is_a (elem->type, type))
return TRUE;
elems = elems->next;
}
return FALSE;
}
void
gtk_widget_path_foreach (GtkWidgetPath *path,
GtkWidgetPathForeachFunc func,
gpointer user_data)
{
GSList *elems;
g_return_if_fail (path != NULL);
g_return_if_fail (func != NULL);
elems = path->elems;
while (elems)
{
GtkPathElement *elem;
elem = elems->data;
elems = elems->next;
if ((func) (elem->type, elem->name, user_data))
return;
}
}
/* GTK - The GIMP Toolkit
* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GTK_WIDGET_PATH_H__
#define __GTK_WIDGET_PATH_H__
#include <glib-object.h>
G_BEGIN_DECLS
typedef struct GtkWidgetPath GtkWidgetPath;
typedef gboolean (* GtkWidgetPathForeachFunc) (GType type,
const gchar *name,
gpointer user_data);
GtkWidgetPath * gtk_widget_path_new (void);
void gtk_widget_path_prepend_widget_desc (GtkWidgetPath *path,
GType type,
const gchar *name);
GtkWidgetPath * gtk_widget_path_copy (GtkWidgetPath *path);
void gtk_widget_path_free (GtkWidgetPath *path);
gboolean gtk_widget_path_has_parent (GtkWidgetPath *path,
GType type);
void gtk_widget_path_foreach (GtkWidgetPath *path,
GtkWidgetPathForeachFunc func,
gpointer user_data);
G_END_DECLS
#endif /* __GTK_WIDGET_PATH_H__ */
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