100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
/*
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* Copyright 2009 Igor Trindade Oliveira <igor.oliveira@indt.org.br>
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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 "geometry_p.h"
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#include <QRect>
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#include <kdebug.h>
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namespace Plasma
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{
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GeometryAnimation::GeometryAnimation(QObject *parent)
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: EasingAnimation(parent),
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m_startGeometry(-1, -1, -1, -1)
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{
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}
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GeometryAnimation::~GeometryAnimation()
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{
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}
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void GeometryAnimation::setStartGeometry(const QRectF &geometry)
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{
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m_startGeometry = geometry;
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}
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QRectF GeometryAnimation::startGeometry() const
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{
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return m_startGeometry;
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}
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void GeometryAnimation::setTargetGeometry(const QRectF &geometry)
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{
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m_targetGeometry = geometry;
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}
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QRectF GeometryAnimation::targetGeometry() const
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{
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return m_targetGeometry;
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}
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void GeometryAnimation::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 (m_startGeometry == QRectF(-1, -1, -1, -1)) {
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m_startGeometry = w->geometry();
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}
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if (oldState == Stopped && newState == Running) {
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w->setGeometry(direction() == Forward ? m_startGeometry : m_targetGeometry);
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} else if (newState == Stopped) {
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w->setGeometry(direction() == Forward ? m_targetGeometry : m_startGeometry);
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}
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}
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void GeometryAnimation::updateEffectiveTime(int currentTime)
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{
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QGraphicsWidget *w = targetWidget();
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if (w) {
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const qreal delta = currentTime / qreal(duration());
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QRectF newGeo;
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newGeo.moveTopLeft(QPointF(m_startGeometry.left()*(1-delta) + m_targetGeometry.left()*(delta),
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m_startGeometry.top()*(1-delta) + m_targetGeometry.top()*(delta)));
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if (m_startGeometry.size() != m_targetGeometry.size()) {
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newGeo.setSize(QSizeF(m_startGeometry.width()*(1-delta) + m_targetGeometry.width()*(delta),
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m_startGeometry.height()*(1-delta) + m_targetGeometry.height()*(delta)));
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} else {
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newGeo.setSize(m_targetGeometry.size());
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}
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w->setGeometry(newGeo);
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}
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}
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} //namespace Plasma
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#include "geometry_p.moc"
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