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ClutterLayoutManager does not have any state associated with it, and defers all the state to its sub-classes. The BoxLayout is thus in charge of controlling: • whether or not animations should be used • the duration of the animation • the easing mode of the animation By adding three new properties: • ClutterBoxLayout:use-animations • ClutterBoxLayout:easing-duration • ClutterBoxLayout:easing-mode And their relative accessors pairs we can make BoxLayout decide whether or not, and with which parameters, call the begin_animation() method of ClutterLayoutManager. The test-box-layout has been modified to reflect this new functionality, by checking the key-press event for the 'a' key symbol to toggle the use of animations.
154 lines
7.4 KiB
C
154 lines
7.4 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2009 Intel Corporation.
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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, see <http://www.gnu.org/licenses/>.
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*
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* Author:
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*
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* Based on the NBTK NbtkBoxLayout actor by:
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* Thomas Wood <thomas.wood@intel.com>
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*/
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#ifndef __CLUTTER_BOX_LAYOUT_H__
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#define __CLUTTER_BOX_LAYOUT_H__
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#include <clutter/clutter-layout-manager.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_BOX_LAYOUT (clutter_box_layout_get_type ())
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#define CLUTTER_BOX_LAYOUT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_BOX_LAYOUT, ClutterBoxLayout))
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#define CLUTTER_IS_BOX_LAYOUT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_BOX_LAYOUT))
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#define CLUTTER_BOX_LAYOUT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_BOX_LAYOUT, ClutterBoxLayoutClass))
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#define CLUTTER_IS_BOX_LAYOUT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_BOX_LAYOUT))
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#define CLUTTER_BOX_LAYOUT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_BOX_LAYOUT, ClutterBoxLayoutClass))
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typedef struct _ClutterBoxLayout ClutterBoxLayout;
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typedef struct _ClutterBoxLayoutPrivate ClutterBoxLayoutPrivate;
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typedef struct _ClutterBoxLayoutClass ClutterBoxLayoutClass;
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/**
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* ClutterBoxAlignment:
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* @CLUTTER_BOX_ALIGNMENT_START: Align the child to the top or to
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* to the left, depending on the used axis
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* @CLUTTER_BOX_ALIGNMENT_CENTER: Align the child to the center
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* @CLUTTER_BOX_ALIGNMENT_END: Align the child to the bottom or to
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* the right, depending on the used axis
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*
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* The alignment policies available on each axis of the #ClutterBoxLayout
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*
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* Since: 1.2
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*/
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typedef enum {
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CLUTTER_BOX_ALIGNMENT_START,
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CLUTTER_BOX_ALIGNMENT_END,
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CLUTTER_BOX_ALIGNMENT_CENTER
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} ClutterBoxAlignment;
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/**
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* ClutterBoxLayout:
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*
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* The #ClutterBoxLayout structure contains only private data
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* and should be accessed using the provided API
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*
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* Since: 1.2
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*/
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struct _ClutterBoxLayout
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{
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/*< private >*/
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ClutterLayoutManager parent_instance;
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ClutterBoxLayoutPrivate *priv;
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};
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/**
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* ClutterBoxLayoutClass:
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*
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* The #ClutterBoxLayoutClass structure contains only private
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* data and should be accessed using the provided API
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*
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* Since: 1.2
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*/
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struct _ClutterBoxLayoutClass
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{
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/*< private >*/
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ClutterLayoutManagerClass parent_class;
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};
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GType clutter_box_layout_get_type (void) G_GNUC_CONST;
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ClutterLayoutManager *clutter_box_layout_new (void);
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void clutter_box_layout_set_spacing (ClutterBoxLayout *layout,
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guint spacing);
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guint clutter_box_layout_get_spacing (ClutterBoxLayout *layout);
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void clutter_box_layout_set_vertical (ClutterBoxLayout *layout,
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gboolean vertical);
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gboolean clutter_box_layout_get_vertical (ClutterBoxLayout *layout);
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void clutter_box_layout_set_pack_start (ClutterBoxLayout *layout,
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gboolean pack_start);
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gboolean clutter_box_layout_get_pack_start (ClutterBoxLayout *layout);
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void clutter_box_layout_pack (ClutterBoxLayout *layout,
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ClutterActor *actor,
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gboolean expand,
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gboolean x_fill,
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gboolean y_fill,
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ClutterBoxAlignment x_align,
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ClutterBoxAlignment y_align);
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void clutter_box_layout_set_alignment (ClutterBoxLayout *layout,
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ClutterActor *actor,
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ClutterBoxAlignment x_align,
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ClutterBoxAlignment y_align);
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void clutter_box_layout_get_alignment (ClutterBoxLayout *layout,
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ClutterActor *actor,
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ClutterBoxAlignment *x_align,
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ClutterBoxAlignment *y_align);
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void clutter_box_layout_set_fill (ClutterBoxLayout *layout,
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ClutterActor *actor,
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gboolean x_fill,
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gboolean y_fill);
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void clutter_box_layout_get_fill (ClutterBoxLayout *layout,
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ClutterActor *actor,
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gboolean *x_fill,
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gboolean *y_fill);
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void clutter_box_layout_set_expand (ClutterBoxLayout *layout,
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ClutterActor *actor,
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gboolean expand);
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gboolean clutter_box_layout_get_expand (ClutterBoxLayout *layout,
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ClutterActor *actor);
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void clutter_box_layout_set_use_animations (ClutterBoxLayout *layout,
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gboolean animate);
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gboolean clutter_box_layout_get_use_animations (ClutterBoxLayout *layout);
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void clutter_box_layout_set_easing_mode (ClutterBoxLayout *layout,
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gulong mode);
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gulong clutter_box_layout_get_easing_mode (ClutterBoxLayout *layout);
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void clutter_box_layout_set_easing_duration (ClutterBoxLayout *layout,
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guint msecs);
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guint clutter_box_layout_get_easing_duration (ClutterBoxLayout *layout);
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G_END_DECLS
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#endif /* __CLUTTER_BOX_LAYOUT_H__ */
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