a class to handle transitions betwen pixmap.
puhbutton port in the works too svn path=/trunk/KDE/kdelibs/; revision=1077924
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animations/pixmaptransition.cpp
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98
animations/pixmaptransition.cpp
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/*
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* Copyright 2009 Mehmet Ali Akmanalp <makmanalp@wpi.edu>
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* Copyright 2010 Marco Martin <notmart@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "pixmaptransition_p.h"
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#include <QPixmap>
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#include <kdebug.h>
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#include "paintutils.h"
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namespace Plasma
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{
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PixmapTransition::PixmapTransition(QObject *parent)
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: Animation(parent)
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{
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}
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PixmapTransition::~PixmapTransition()
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{
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}
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void PixmapTransition::setStartPixmap(const QPixmap &pixmap)
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{
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m_startPixmap = pixmap;
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m_currentPixmap = pixmap;
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}
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QPixmap PixmapTransition::startPixmap() const
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{
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return m_startPixmap;
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}
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void PixmapTransition::setTargetPixmap(const QPixmap &pixmap)
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{
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m_targetPixmap = pixmap;
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}
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QPixmap PixmapTransition::targetPixmap() const
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{
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return m_targetPixmap;
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}
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QPixmap PixmapTransition::currentPixmap() const
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{
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return m_currentPixmap;
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}
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void PixmapTransition::updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState)
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{
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QGraphicsWidget *w = targetWidget();
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if (!w) {
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return;
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}
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if (oldState == Stopped && newState == Running) {
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m_currentPixmap = (direction() == Forward ? m_startPixmap : m_targetPixmap);
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} else if (newState == Stopped) {
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m_currentPixmap = (direction() == Forward ? m_targetPixmap : m_startPixmap);
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}
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w->update();
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}
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void PixmapTransition::updateCurrentTime(int currentTime)
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{
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QGraphicsWidget *w = targetWidget();
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if (w) {
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qreal delta = currentTime / qreal(duration());
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delta *= Animation::easingCurve().valueForProgress(delta);
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m_currentPixmap = Plasma::PaintUtils::transition(m_startPixmap, m_targetPixmap, delta);
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}
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Animation::updateCurrentTime(currentTime);
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if (w) {
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w->update();
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}
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}
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} //namespace Plasma
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86
animations/pixmaptransition_p.h
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animations/pixmaptransition_p.h
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/*
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* Copyright 2009 Mehmet Ali Akmanalp <makmanalp@wpi.edu>
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* Copyright 2010 Marco Martin <notmart@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/**
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* @file This file contains the definition for the PixmapTransition effect.
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*/
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#ifndef PLASMA_ANIMATIONS_PIXMAPTRANSITION_P_H
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#define PLASMA_ANIMATIONS_PIXMAPTRANSITION_P_H
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#include <plasma/animations/animation.h>
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#include <plasma/plasma_export.h>
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namespace Plasma
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{
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/**
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* @class Fade plasma/animations/pixmaptransition.h
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* @short PixmapTransition effect
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*
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* Effect that paints a transition between two pixmaps
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*/
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class PixmapTransition : public Animation
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{
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Q_OBJECT
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Q_PROPERTY(QPixmap startPixmap READ startPixmap WRITE setStartPixmap)
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Q_PROPERTY(QPixmap targetPixmap READ targetPixmap WRITE setTargetPixmap)
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Q_PROPERTY(QPixmap currentPixmap READ currentPixmap)
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public:
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explicit PixmapTransition(QObject *parent = 0);
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virtual ~PixmapTransition();
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/**
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* The first pixmap of the animation
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*/
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QPixmap startPixmap() const;
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/**
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* Set the first pixmap of the animation
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*/
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void setStartPixmap(const QPixmap &);
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/**
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* The pixmap the animation will evolve to
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*/
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QPixmap targetPixmap() const;
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/**
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* Set the pixmap the animation will evolve to
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*/
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void setTargetPixmap(const QPixmap &);
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QPixmap currentPixmap() const;
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protected:
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void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState);
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void updateCurrentTime(int currentTime);
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private:
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QPixmap m_startPixmap;
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QPixmap m_targetPixmap;
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QPixmap m_currentPixmap;
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};
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}
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#endif // PLASMA_ANIMATIONS_PIXMAPTRANSITION_P_H
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@ -29,6 +29,7 @@
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#include "animations/rotationstacked_p.h"
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#include "animations/geometry_p.h"
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#include "animations/zoom_p.h"
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#include "animations/pixmaptransition_p.h"
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namespace Plasma
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{
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@ -70,6 +71,10 @@ Plasma::Animation* Animator::create(Animator::Animation type, QObject *parent)
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result = new Plasma::ZoomAnimation(parent);
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break;
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case PixmapTransitionAnimation:
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result = new Plasma::PixmapTransition(parent);
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break;
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default:
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kDebug() << "Unsupported animation type.";
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}
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RotationStackedAnimation, /*<< for flipping one object with another */
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SlideAnimation, /*<< Move the position of animated object */
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GeometryAnimation, /*<< Geometry animation*/
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ZoomAnimation /*<<Zoom animation */
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ZoomAnimation, /*<<Zoom animation */
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PixmapTransitionAnimation /*<< Transition between two pixmaps*/
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};
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enum CurveShape {
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