[clutter-tutorial] Ported scrolling example to the new ClutterViewport class
- From: Johannes Schmid <jhs src gnome org>
- To: svn-commits-list gnome org
- Subject: [clutter-tutorial] Ported scrolling example to the new ClutterViewport class
- Date: Wed, 29 Apr 2009 05:41:22 -0400 (EDT)
commit a2ee81a65460c700ff36654bfcf639e763625635
Author: Johannes Schmid <jhs gnome org>
Date: Wed Apr 29 11:02:23 2009 +0200
Ported scrolling example to the new ClutterViewport class
Updated example code and scrolling chapter in the tutorial
(openedhand bug #935)
---
ChangeLog | 11 +
docs/tutorial/clutter-tut.xml | 50 +++---
docs/tutorial/figures/scrolling.png | Bin 3896 -> 111106 bytes
examples/scrolling/Makefile.am | 2 +-
examples/scrolling/main.c | 142 +++++++------
examples/scrolling/scrollingcontainer.c | 351 -------------------------------
examples/scrolling/scrollingcontainer.h | 70 ------
7 files changed, 116 insertions(+), 510 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 61e4663..f1b3aed 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2009-04-29 Johannes Schmid <jschmid openismus com>
+
+ * examples/scrolling/main.c:
+ * examples/scrolling/Makefile.am:
+ * docs/tutorial/clutter-tut.xml:
+ * docs/tutorial/figures/scrolling.png:
+ Ported scrolling example to the new ClutterViewport class
+
+ Updated example code and scrolling chapter in the tutorial
+ (openedhand bug #935)
+
2009-04-27 Murray Cumming <murrayc murrayc com>
Mention ClutterText.
diff --git a/docs/tutorial/clutter-tut.xml b/docs/tutorial/clutter-tut.xml
index 4a09b2d..e7f2138 100644
--- a/docs/tutorial/clutter-tut.xml
+++ b/docs/tutorial/clutter-tut.xml
@@ -969,40 +969,40 @@ space, or align differently inside the container.
</appendix>
-<!-- TODO: Update this for clutter 0.9. -->
<appendix id="appendix-implementing-scrolling">
-<title>Implementing Scrolling in a Window-like Actor</title>
+<title>Implementing Scrolling</title>
-<sect1>
-<title>The Technique</title>
-
-<para>There is not yet a standard container in &clutter; to show and scroll through
-a small part of a set of widgets, like the
-<classname>GtkScrolledWindow</classname> widget in the GTK+ toolkit, so you may
-need to implement this functionality in your application.
-</para>
-<para>The &tidy; project
-contains some suggested implementations for such actors, but here is a simpler example
-of the general technique. It creates the impression of scrolling by clipping a
-container so that it only shows a small area of the screen, while moving the child
-widgets in that container.
-</para>
-</sect1>
-
-<sect1 id="scrolling-container-example"><title>Example</title>
+<sect1 id="actor-scrolling">
+<title>GtkClutterViewport</title>
<para>
-This example places three rectangles in a custom container which scrolls its
-child widgets to the left when the user clicks on the stage.
+When integrating <classname>ClutterActor</classname>s into >k; it can become
+necessary to implement scrolling due to limited screen space. Normally you would
+add a widget inside a <classname>GtkScrolledWindow</classname> to add scrolling
+capabilities. As clutter is accessing the graphic hardware directly bypassing the
+normal >k; drawing this is not possible with <classname>GtkClutterEmbed</classname>.
</para>
+<para>
+Instead you have to use a <classname>GtkClutterViewport</classname> which will
+take care of the scrolling. The <classname>GtkClutterViewport</classname> does
+not draw any scrollbars itself instead it uses a <classname>GtkAdjustment</classname> to
+determine the current scrolling position. Usually you will connect the
+<classname>GtkAdjustment</classname> to a <classname>GtkScrollbar</classname> but
+it is also possible to change it directly or to connect it to some other widget
+derived from <classname>GtkRuler</classname>.
+</para>
+<para><ulink url="&url_refdocs_base_clutter_gtk;GtkClutterViewport.html">Reference</ulink></para>
+</sect1>
+<sect1 id="scrolling-actor-example"><title>Example</title>
<para>
-Real-world applications will of course want to implement more specific behaviour, depending on their needs. For instance,
-adding scrollbars that show accurate scroll positions, scrolling smoothly with animation, efficiently drawing only objects
-that should be visible when dealing with large numbers of rows.
+This example is simple image viewer that allows scrolling the image.
+Esspecially interesting is the layout of the <classname>GtkTable</classname> with the two scrollbars as it
+is a quite common case and probably a good starting point for implementing basic
+scrolling in an application.
</para>
<figure id="figure-scrolling-container">
- <title>Scrolling Container</title>
+ <title>Scrolling Actor</title>
<screenshot>
<graphic format="PNG" fileref="&url_figures_base;scrolling.png"/>
</screenshot>
diff --git a/docs/tutorial/figures/scrolling.png b/docs/tutorial/figures/scrolling.png
index f943c6c..db0786c 100644
Binary files a/docs/tutorial/figures/scrolling.png and b/docs/tutorial/figures/scrolling.png differ
diff --git a/examples/scrolling/Makefile.am b/examples/scrolling/Makefile.am
index 093948b..f389d29 100644
--- a/examples/scrolling/Makefile.am
+++ b/examples/scrolling/Makefile.am
@@ -3,5 +3,5 @@ include $(top_srcdir)/examples/Makefile.am_fragment
#Build the executable, but don't install it.
noinst_PROGRAMS = example
-example_SOURCES = main.c scrollingcontainer.h scrollingcontainer.c
+example_SOURCES = main.c
diff --git a/examples/scrolling/main.c b/examples/scrolling/main.c
index cb0f6ec..d590fa4 100644
--- a/examples/scrolling/main.c
+++ b/examples/scrolling/main.c
@@ -14,74 +14,90 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <gtk/gtk.h>
#include <clutter/clutter.h>
-#include "scrollingcontainer.h"
+#include <clutter-gtk/clutter-gtk.h>
#include <stdlib.h>
-ClutterActor *scrolling = NULL;
-
-
-static gboolean
-on_stage_button_press (ClutterStage *stage, ClutterEvent *event, gpointer data)
-{
- printf ("Scrolling\n");
-
- /* Scroll the container: */
- example_scrolling_container_scroll_left (
- EXAMPLE_SCROLLING_CONTAINER (scrolling), 10);
-
- return TRUE; /* Stop further handling of this event. */
-}
-
-int main(int argc, char *argv[])
+int
+main (int argc, char *argv[])
{
- ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
- ClutterColor actor_color = { 0x7f, 0xae, 0xff, 0xff };
- ClutterColor actor_color2 = { 0xff, 0x7f, 0xae, 0xff };
- ClutterColor actor_color3 = { 0xae, 0xff, 0x7f, 0xff };
-
- clutter_init (&argc, &argv);
-
- /* Get the stage and set its size and color: */
- ClutterActor *stage = clutter_stage_get_default ();
- clutter_actor_set_size (stage, 200, 200);
+ /* Clutter */
+ ClutterActor *stage, *viewport, *tex;
+ ClutterColor stage_color = { 0x61, 0x64, 0x8c, 0xff };
+
+ /* Gtk+ */
+ GtkWidget *window, *embed;
+ GtkWidget *table, *scrollbar;
+ GtkAdjustment *h_adjustment, *v_adjustment;
+
+ /* Call gtk_clutter_init() to init both clutter and gtk+ */
+ if (gtk_clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+ g_error ("Unable to initialize GtkClutter");
+
+ if (argc != 2)
+ g_error ("Usage: example <image file>");
+
+ /* Create a toplevel window */
+ window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ gtk_window_set_default_size (GTK_WINDOW (window), 640, 480);
+ g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
+
+ /* Create a table to hold the scrollbars and the ClutterEmbed widget */
+ table = gtk_table_new (2, 2, FALSE);
+ gtk_container_add (GTK_CONTAINER (window), table);
+ gtk_widget_show (table);
+
+ /* Create ClutterEmbed widget for the stage */
+ embed = gtk_clutter_embed_new ();
+ gtk_table_attach (GTK_TABLE (table), embed,
+ 0, 1,
+ 0, 1,
+ GTK_EXPAND | GTK_FILL,
+ GTK_EXPAND | GTK_FILL,
+ 0, 0);
+ gtk_widget_show (embed);
+
+ /* Init stage */
+ stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (embed));
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
-
- /* Add our scrolling container to the stage: */
- scrolling = example_scrolling_container_new ();
- clutter_actor_set_size (scrolling, 180, 100);
- clutter_actor_set_position (scrolling, 10, 10);
- clutter_container_add_actor (CLUTTER_CONTAINER (stage), scrolling);
- clutter_actor_show (scrolling);
-
- /* Add some actors to our container: */
- ClutterActor *actor = clutter_rectangle_new_with_color (&actor_color);
- clutter_actor_set_size (actor, 75, 75);
- clutter_container_add_actor (CLUTTER_CONTAINER (scrolling), actor);
- clutter_actor_show (actor);
-
- ClutterActor *actor2 = clutter_rectangle_new_with_color (&actor_color2);
- clutter_actor_set_size (actor2, 75, 75);
- clutter_container_add_actor (CLUTTER_CONTAINER (scrolling), actor2);
- clutter_actor_show (actor2);
-
- ClutterActor *actor3 = clutter_rectangle_new_with_color (&actor_color3);
- clutter_actor_set_size (actor3, 75, 75);
- clutter_container_add_actor (CLUTTER_CONTAINER (scrolling), actor3);
- clutter_actor_show (actor3);
-
-
- /* Show the stage: */
- clutter_actor_show (stage);
-
- /* Connect signal handlers to handle mouse clicks on the stage: */
- g_signal_connect (stage, "button-press-event",
- G_CALLBACK (on_stage_button_press), NULL);
-
- /* Start the main loop, so we can respond to events: */
- clutter_main ();
-
+ clutter_actor_set_size (stage, 640, 480);
+
+ /* Create viewport actor to be able to scroll actor. By passing NULL it
+ * will create new GtkAdjustments */
+ viewport = gtk_clutter_viewport_new (NULL, NULL);
+ clutter_container_add_actor (CLUTTER_CONTAINER (stage), viewport);
+
+ /* Load image from first command line argument and add it to viewport*/
+ tex = clutter_texture_new_from_file (argv[1], NULL);
+ clutter_container_add_actor (CLUTTER_CONTAINER (viewport), tex);
+ clutter_actor_set_position (tex, 0, 0);
+ clutter_actor_set_position (tex, 0, 0);
+ clutter_actor_set_position (viewport, 0, 0);
+ clutter_actor_set_size (viewport, 640, 480);
+
+ /* Create scrollbars and connect them to viewport */
+ gtk_clutter_scrollable_get_adjustments (GTK_CLUTTER_SCROLLABLE (viewport),
+ &h_adjustment,
+ &v_adjustment);
+ scrollbar = gtk_vscrollbar_new (v_adjustment);
+ gtk_table_attach (GTK_TABLE (table), scrollbar,
+ 1, 2,
+ 0, 1,
+ 0, GTK_EXPAND | GTK_FILL,
+ 0, 0);
+ gtk_widget_show (scrollbar);
+ scrollbar = gtk_hscrollbar_new (h_adjustment);
+ gtk_table_attach (GTK_TABLE (table), scrollbar,
+ 0, 1,
+ 1, 2,
+ GTK_EXPAND | GTK_FILL, 0,
+ 0, 0);
+
+ gtk_widget_show (scrollbar);
+ gtk_widget_show (window);
+
+ gtk_main();
return EXIT_SUCCESS;
-
}
diff --git a/examples/scrolling/scrollingcontainer.c b/examples/scrolling/scrollingcontainer.c
deleted file mode 100644
index 24f2a70..0000000
--- a/examples/scrolling/scrollingcontainer.c
+++ /dev/null
@@ -1,351 +0,0 @@
-/* Copyright 2008 Openismus GmbH,
- * based on ClutterBox and ClutterHBox from Clutter 0.4
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "scrollingcontainer.h"
-#include <clutter/clutter.h>
-
-#include <string.h>
-#include <stdio.h>
-
-/**
- * SECTION:example-scrolling-container
- * @short_description: This container shows only a small area
- * of its child actors, and the child actors can be scrolled
- * left under that area.
- */
-
-
-static void clutter_container_iface_init (ClutterContainerIface *iface);
-
-G_DEFINE_TYPE_WITH_CODE (ExampleScrollingContainer,
- example_scrolling_container,
- CLUTTER_TYPE_ACTOR,
- G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_CONTAINER,
- clutter_container_iface_init));
-
-
-/* An implementation for the ClutterContainer::add() vfunc: */
-static void
-example_scrolling_container_add (ClutterContainer *container,
- ClutterActor *actor)
-{
- example_scrolling_container_pack (EXAMPLE_SCROLLING_CONTAINER (container), actor);
-}
-
-/* An implementation for the ClutterContainer::remove() vfunc: */
-static void
-example_scrolling_container_remove (ClutterContainer *container,
- ClutterActor *actor)
-{
- ExampleScrollingContainer *self = EXAMPLE_SCROLLING_CONTAINER (container);
- GList *l;
-
- g_object_ref (actor);
-
- for (l = self->children; l; l = l->next)
- {
- ClutterActor *child = l->data;
-
- if (child == actor)
- {
- clutter_container_remove_actor (CLUTTER_CONTAINER (self->group), child);
-
- self->children = g_list_remove_link (self->children, l);
- g_list_free (l);
-
- g_signal_emit_by_name (container, "actor-removed", actor);
-
- clutter_actor_queue_relayout (CLUTTER_ACTOR (self));
-
- break;
- }
- }
-
- g_object_unref (actor);
-}
-
-/* An implementation for the ClutterContainer::foreach() vfunc: */
-static void
-example_scrolling_container_foreach (ClutterContainer *container,
- ClutterCallback callback,
- gpointer user_data)
-{
- ExampleScrollingContainer *self = EXAMPLE_SCROLLING_CONTAINER (container);
- clutter_container_foreach (CLUTTER_CONTAINER (self->group), callback, user_data);
-}
-
-static void
-clutter_container_iface_init (ClutterContainerIface *iface)
-{
- /* Provide implementations for ClutterContainer vfuncs: */
- iface->add = example_scrolling_container_add;
- iface->remove = example_scrolling_container_remove;
- iface->foreach = example_scrolling_container_foreach;
-}
-
-/* An implementation for the ClutterActor::show_all() vfunc,
- showing all the child actors: */
-static void
-example_scrolling_container_show_all (ClutterActor *actor)
-{
- ExampleScrollingContainer *self = EXAMPLE_SCROLLING_CONTAINER (actor);
- GList *l;
-
- for (l = self->children; l; l = l->next)
- {
- ClutterActor *child = l->data;
-
- clutter_actor_show (child);
- }
-
- clutter_actor_show (actor);
-}
-
-/* An implementation for the ClutterActor::hide_all() vfunc,
- hiding all the child actors: */
-static void
-example_scrolling_container_hide_all (ClutterActor *actor)
-{
- ExampleScrollingContainer *self = EXAMPLE_SCROLLING_CONTAINER (actor);
- GList *l;
-
- clutter_actor_hide (actor);
-
- for (l = self->children; l; l = l->next)
- {
- ClutterActor *child = l->data;
-
- clutter_actor_hide (child);
- }
-}
-
-/* An implementation for the ClutterActor::paint() vfunc,
- painting all the child actors: */
-static void
-example_scrolling_container_paint (ClutterActor *actor)
-{
- ExampleScrollingContainer *self = EXAMPLE_SCROLLING_CONTAINER (actor);
- clutter_actor_paint (self->group);
-}
-
-/* An implementation for the ClutterActor::pick() vfunc,
- picking all the child actors: */
-static void
-example_scrolling_container_pick (ClutterActor *actor,
- const ClutterColor *color)
-{
- ExampleScrollingContainer *self = EXAMPLE_SCROLLING_CONTAINER (actor);
- clutter_actor_pick (self->group, color);
-}
-
-/* An implementation for the ClutterActor::allocate() vfunc: */
-static void
-example_scrolling_container_allocate (ClutterActor *actor,
- const ClutterActorBox *box,
- gboolean absolute_origin_changed)
-{
- ExampleScrollingContainer *self = EXAMPLE_SCROLLING_CONTAINER (actor);
-
- /* Make sure that the children adapt their positions: */
- ClutterUnit width = box->x2 - box->x1;
- ClutterUnit height = box->y2 - box->y1;
-
- if (width < 0)
- width = 0;
-
- if (height < 0)
- height = 0;
-
- /* Arrange the group: */
- ClutterActorBox child_box = { 0, };
- child_box.x1 = 0;
- child_box.x2 = width;
-
- /* Position the child at the top of the container: */
- child_box.y1 = 0;
- child_box.y2 = height;
-
- clutter_actor_allocate (self->group, &child_box, absolute_origin_changed);
-
- /* Make sure that the group only shows the specified area, by clipping: */
- clutter_actor_set_clip (self->group, 0, 0, CLUTTER_UNITS_TO_DEVICE(width), CLUTTER_UNITS_TO_DEVICE(height));
-
- /* Show a rectangle border to show the area: */
- clutter_actor_allocate (self->rect, &child_box, absolute_origin_changed);
- clutter_actor_lower (self->rect, NULL);
-
- /* Look at each child actor: */
- gint child_x = -(self->offset);
- GList *l = NULL;
- for (l = self->children; l; l = l->next)
- {
- ClutterActor *child = l->data;
- ClutterUnit width, height;
-
- clutter_actor_get_preferred_size (child, NULL, NULL, &width, &height);
-
- child_box.x1 = CLUTTER_UNITS_FROM_DEVICE (child_x);
- child_box.y1 = 0;
- child_box.x2 = child_box.x1 + width;
- child_box.y2 = child_box.y1 + height;
-
- clutter_actor_allocate (child, &child_box, absolute_origin_changed);
-
- child_x += CLUTTER_UNITS_TO_DEVICE (width);
- }
-
- CLUTTER_ACTOR_CLASS (example_scrolling_container_parent_class)->allocate (actor, box, absolute_origin_changed);
-}
-
-
-static void
-example_scrolling_container_dispose (GObject *gobject)
-{
- /* Destroy each child actor when this container is destroyed: */
- ExampleScrollingContainer *self = EXAMPLE_SCROLLING_CONTAINER (gobject);
- GList *l;
-
- for (l = self->children; l; l = l->next)
- {
- ClutterActor *child = l->data;
-
- clutter_actor_destroy (child);
- }
-
- g_list_free (self->children);
- self->children = NULL;
-
- if (self->group)
- {
- clutter_actor_destroy (self->group);
- self->group = NULL;
- }
-
- G_OBJECT_CLASS (example_scrolling_container_parent_class)->dispose (gobject);
-}
-
-static void
-example_scrolling_container_class_init (ExampleScrollingContainerClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
-
- gobject_class->dispose = example_scrolling_container_dispose;
-
- /* Provide implementations for ClutterActor vfuncs: */
- actor_class->show_all = example_scrolling_container_show_all;
- actor_class->hide_all = example_scrolling_container_hide_all;
- actor_class->paint = example_scrolling_container_paint;
- actor_class->pick = example_scrolling_container_pick;
- actor_class->allocate = example_scrolling_container_allocate;
-}
-
-static void
-example_scrolling_container_init (ExampleScrollingContainer *self)
-{
- self->group = clutter_group_new ();
- clutter_actor_show (self->group);
- self->offset = 0;
-
- /* A rectange to show the bounds: */
- ClutterColor actor_color = { 0xff, 0xff, 0xcc, 0xff };
- self->rect = clutter_rectangle_new_with_color (&actor_color);
- clutter_container_add_actor (CLUTTER_CONTAINER (self->group), self->rect);
- clutter_actor_show (self->rect);
-}
-
-/*
- * Public API
- */
-
-/**
- * example_scrolling_container_pack:
- * @self: a #ExampleScrollingContainer
- * @actor: a #ClutterActor to pack into the self
- *
- * Packs @actor into @self.
- */
-void
-example_scrolling_container_pack (ExampleScrollingContainer *self,
- ClutterActor *actor)
-{
-
- g_return_if_fail (EXAMPLE_IS_SCROLLING_CONTAINER (self));
- g_return_if_fail (CLUTTER_IS_ACTOR (actor));
-
- self->children = g_list_prepend (self->children, actor);
- clutter_container_add_actor (CLUTTER_CONTAINER (self->group), actor);
-
- clutter_actor_queue_relayout (CLUTTER_ACTOR (self));
-}
-
-
-/**
- * example_scrolling_container_remove_all:
- * @self: a #ExampleScrollingContainer
- *
- * Removes all child actors from the #ExampleScrollingContainer
- */
-void
-example_scrolling_container_remove_all (ExampleScrollingContainer *self)
-{
- GList *children;
-
- g_return_if_fail (EXAMPLE_IS_SCROLLING_CONTAINER (self));
-
- children = self->children;
- while (children)
- {
- ClutterActor *child = children->data;
- children = children->next;
-
- clutter_container_remove_actor (CLUTTER_CONTAINER (self), child);
- }
-}
-
-
-/**
- * example_scrolling_container_new:
- *
- * Creates a new self.
- *
- * Return value: the newly created #ExampleScrollingContainer
- */
-ClutterActor *
-example_scrolling_container_new (void)
-{
- return g_object_new (EXAMPLE_TYPE_SCROLLING_CONTAINER, NULL);
-}
-
-/**
- * example_scrolling_container_scroll_left:
- * @self: a #ExampleScrollingContainer
- * @distance: The number of pixels by which to scroll left.
- *
- * Scroll all the child widgets left,
- * resulting in some parts being hidden,
- * and some parts becoming visible.
- */
-void example_scrolling_container_scroll_left (ExampleScrollingContainer *self, gint distance)
-{
- g_return_if_fail (EXAMPLE_IS_SCROLLING_CONTAINER (self));
-
- self->offset += distance;
-
- clutter_actor_queue_relayout (CLUTTER_ACTOR (self));
-}
-
diff --git a/examples/scrolling/scrollingcontainer.h b/examples/scrolling/scrollingcontainer.h
deleted file mode 100644
index 28f128d..0000000
--- a/examples/scrolling/scrollingcontainer.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/* Copyright 2008 Openismus GmbH,
- * based on ClutterBox and ClutterHBox from Clutter 0.4
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __EXAMPLE_SCROLLING_CONTAINER_H__
-#define __EXAMPLE_SCROLLING_CONTAINER_H__
-
-#include <clutter/clutter.h>
-
-G_BEGIN_DECLS
-
-#define EXAMPLE_TYPE_SCROLLING_CONTAINER (example_scrolling_container_get_type ())
-#define EXAMPLE_SCROLLING_CONTAINER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), EXAMPLE_TYPE_SCROLLING_CONTAINER, ExampleScrollingContainer))
-#define EXAMPLE_IS_SCROLLING_CONTAINER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EXAMPLE_TYPE_SCROLLING_CONTAINER))
-#define EXAMPLE_SCROLLING_CONTAINER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EXAMPLE_TYPE_SCROLLING_CONTAINER, ExampleScrollingContainerClass))
-#define EXAMPLE_IS_SCROLLING_CONTAINER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EXAMPLE_TYPE_SCROLLING_CONTAINER))
-#define EXAMPLE_SCROLLING_CONTAINER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EXAMPLE_TYPE_SCROLLING_CONTAINER, ExampleScrollingContainerClass))
-
-
-typedef struct _ExampleScrollingContainerChild ExampleScrollingContainerChild;
-typedef struct _ExampleScrollingContainer ExampleScrollingContainer;
-typedef struct _ExampleScrollingContainerClass ExampleScrollingContainerClass;
-
-struct _ExampleScrollingContainer
-{
- /*< private >*/
- ClutterActor parent_instance;
-
- /* List of ExampleScrollingContainerChild structures */
- GList *children;
-
- /* All the child actors are in this group: */
- ClutterActor *group;
- gint offset;
-
- /* A rectange to show the bounds: */
- ClutterActor *rect;
-};
-
-struct _ExampleScrollingContainerClass
-{
- /*< private >*/
- ClutterActorClass parent_class;
-};
-
-
-GType example_scrolling_container_get_type (void) G_GNUC_CONST;
-
-ClutterActor *example_scrolling_container_new (void);
-void example_scrolling_container_pack (ExampleScrollingContainer *self, ClutterActor *actor);
-void example_scrolling_container_remove_all (ExampleScrollingContainer *self);
-
-void example_scrolling_container_scroll_left (ExampleScrollingContainer *self, gint distance);
-
-G_END_DECLS
-
-#endif /* __EXAMPLE_SCROLLING_CONTAINER_H__ */
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