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gnome-shell/src/st/st-theme-node-transition.h

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[St] Add StThemeNodeTransition Introduce a small helper class in order to add transitions between theme nodes to StWidget. https://bugzilla.gnome.org/show_bug.cgi?id=619025 transition update
2010-05-25 10:10:37 -04:00
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
Fix up copyright and license notices for St * Make sure all source files have a LGPL copyright header, and standardize non-standard variations of the header to a common form. * Check and update all copyright notices. * Remove 'Written By:' lines. They are universally incomplete and typically indicate only who started a particular file. https://bugzilla.gnome.org/show_bug.cgi?id=634550
2010-11-10 17:00:45 -05:00
/*
* st-theme-node-transition.h: Theme node transitions for StWidget.
*
* Copyright 2010 Florian Müllner
*
* This program 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 2.1 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope 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 program. If not, see <http://www.gnu.org/licenses/>.
*/
[St] Add StThemeNodeTransition Introduce a small helper class in order to add transitions between theme nodes to StWidget. https://bugzilla.gnome.org/show_bug.cgi?id=619025 transition update
2010-05-25 10:10:37 -04:00
#ifndef __ST_THEME_NODE_TRANSITION_H__
#define __ST_THEME_NODE_TRANSITION_H__
#include <clutter/clutter.h>
#include "st-widget.h"
#include "st-theme-node.h"
G_BEGIN_DECLS
st: Use G_DECLARE_*_TYPE Cut down on boilerplate by using the (no longer that) new helper macros. We don't care about breaking ABI in private libraries, so use G_DECLARE_FINAL_TYPE even where the class struct used to be exposed in the header, except for types we inherit from ourselves (obviously) or where the class exposes any vfuncs (where changes could affect inheritance in extensions).
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#define ST_TYPE_THEME_NODE_TRANSITION (st_theme_node_transition_get_type ())
G_DECLARE_FINAL_TYPE (StThemeNodeTransition, st_theme_node_transition,
ST, THEME_NODE_TRANSITION, GObject)
[St] Add StThemeNodeTransition Introduce a small helper class in order to add transitions between theme nodes to StWidget. https://bugzilla.gnome.org/show_bug.cgi?id=619025 transition update
2010-05-25 10:10:37 -04:00
StThemeNodeTransition *st_theme_node_transition_new (StThemeNode *from_node,
StThemeNode *to_node,
st: Move the theme node drawing state to StWidget This ensures that two widgets sharing the same theme node won't trample on each other's prerendered materials if the actors are of different sizes. This also tries to be very careful to share as much as possible during a transition. This has the side effect that if a widget changes state a bunch of times, we won't cache every state. Since we expect that state changes are infrequent and that most cases we'll be able to use the texture cache to do most of the heavy lifting, this cost is much more insignificant than rendering a number of different actors with the same theme node and different sizes. https://bugzilla.gnome.org/show_bug.cgi?id=697274
2013-04-04 20:29:59 -04:00
StThemeNodePaintState *old_paint_state,
[St] Add StThemeNodeTransition Introduce a small helper class in order to add transitions between theme nodes to StWidget. https://bugzilla.gnome.org/show_bug.cgi?id=619025 transition update
2010-05-25 10:10:37 -04:00
guint duration);
void st_theme_node_transition_update (StThemeNodeTransition *transition,
StThemeNode *new_node);
void st_theme_node_transition_paint (StThemeNodeTransition *transition,
ClutterActorBox *allocation,
guint8 paint_opacity);
st: Report correct paint volumes during transitions StWidget reports a paint volume large enough to paint the current theme node. As CSS transitions also paint the previous theme node, the reported paint volume may be incorrect, resulting in screen artifacts when painting outside the reported volume. Add st_theme_node_transition_get_paint_box() to calculate an allocation large enough to paint both theme nodes, and use it to report the correct paint volume during transitions. https://bugzilla.gnome.org/show_bug.cgi?id=640085
2011-01-20 15:15:05 -05:00
void st_theme_node_transition_get_paint_box (StThemeNodeTransition *transition,
const ClutterActorBox *allocation,
ClutterActorBox *paint_box);
st: Move the theme node drawing state to StWidget This ensures that two widgets sharing the same theme node won't trample on each other's prerendered materials if the actors are of different sizes. This also tries to be very careful to share as much as possible during a transition. This has the side effect that if a widget changes state a bunch of times, we won't cache every state. Since we expect that state changes are infrequent and that most cases we'll be able to use the texture cache to do most of the heavy lifting, this cost is much more insignificant than rendering a number of different actors with the same theme node and different sizes. https://bugzilla.gnome.org/show_bug.cgi?id=697274
2013-04-04 20:29:59 -04:00
StThemeNodePaintState * st_theme_node_transition_get_new_paint_state (StThemeNodeTransition *transition);
[St] Add StThemeNodeTransition Introduce a small helper class in order to add transitions between theme nodes to StWidget. https://bugzilla.gnome.org/show_bug.cgi?id=619025 transition update
2010-05-25 10:10:37 -04:00
G_END_DECLS
#endif
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