plasma-framework/phase.h
Aaron J. Seigo 30f07bb62c add the concept of element animation. right now it only provides support for modifying a pixmap; positioning needs to be added, but this at least shows that it works(tm)
the idea is that you register an element animation and get back an id. you can associate a pixmap with that id and off you go. the item gets update() calls whenever the anim changes and you can fetch your precious little pixmap back with a call to animationResult.

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=677782
2007-06-19 21:56:03 +00:00

115 lines
2.7 KiB
C++

/*
* Copyright (C) 2007 Aaron Seigo <aseigo@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library 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 Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef PHASE_H
#define PHASE_H
#include <QImage>
#include <QObject>
#include <plasma/plasma_export.h>
class QGraphicsItem;
class QTimeLine;
namespace Plasma
{
/**
* @short A system for applying effects to Plasma elements
*/
class PLASMA_EXPORT Phase : public QObject
{
Q_OBJECT
public:
enum Animation
{
Appear = 0 /*<< When some appears in the Corona */,
Disappear /*<< When something is about to disappear */,
Activate /*<< When something is activated or launched, such as an app icon being clicked */,
FrameAppear /*<< Make a frame appear around an object */
};
enum ElementAnimation
{
ElementAppear = 0,
ElementDisappear
};
enum RenderOp
{
RenderBackground = 0 /*<< Render the background of an item */
};
typedef int AnimId;
/**
* Singleton accessor
**/
static Phase* self();
explicit Phase(QObject * parent = 0);
~Phase();
AnimId startElementAnimation(QGraphicsItem *obj, ElementAnimation);
void stopElementAnimation(AnimId id);
void setAnimationPixmap(AnimId id, const QPixmap &pixmap);
QPixmap animationResult(AnimId id);
Q_SIGNALS:
void animationComplete(QGraphicsItem *item, Animation anim);
public Q_SLOTS:
void animate(QGraphicsItem* item, Animation anim);
void render(QGraphicsItem* item, QImage& image, RenderOp op);
protected Q_SLOTS:
void appletDestroyed(QObject*);
void advanceFrame(int frame, QTimeLine* timeLine);
void advanceElementFrame(int frame);
void advanceElementFrame(int frame, AnimId id);
/**
* NEVER call this method directly, as it relies on sender()
*/
void advanceFrame(int frame);
/**
* NEVER call this method directly, as it relies on sender()
*/
void animationComplete();
/**
* NEVER call this method directly, as it relies on sender()
*/
void elementAnimationComplete();
private:
void init();
class Private;
Private * const d;
};
} // namespace Plasma
#endif