110 lines
3.0 KiB
C++
110 lines
3.0 KiB
C++
/* Copyright (C) 2009 Adenilson Cavalcanti <cavalcantii@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 "pulser_p.h"
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#include "pulsershadow_p.h"
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#include <QEvent>
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#include <QGraphicsWidget>
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#include <QParallelAnimationGroup>
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#include <QPropertyAnimation>
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#include <QWeakPointer>
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#include <kdebug.h>
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namespace Plasma
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{
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PulseAnimation::PulseAnimation(QObject *parent)
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: Animation(parent),
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m_zvalue(0),
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m_scale(0),
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m_opacity(0),
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m_endScale(1.5)
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{
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}
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PulseAnimation::~PulseAnimation()
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{
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}
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void PulseAnimation::setCopy()
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{
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QGraphicsWidget *target = targetWidget();
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if (!target) {
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m_under.clear();
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return;
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}
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if (!m_under.data()) {
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m_under = new ShadowFake;
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}
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m_under.data()->setTarget(target);
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m_zvalue = target->zValue() - 1;
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m_scale = target->scale();
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m_under.data()->setOpacity(m_opacity);
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m_under.data()->setScale(m_scale);
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m_under.data()->setZValue(m_zvalue);
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}
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void PulseAnimation::resetPulser()
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{
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if (m_under.data()) {
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m_under.data()->setOpacity(m_opacity);
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m_under.data()->setScale(m_scale);
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m_under.data()->setZValue(m_zvalue);
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}
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}
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void PulseAnimation::updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState)
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{
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if (!targetWidget()) {
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return;
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}
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if (oldState == Stopped && newState == Running) {
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if (!m_under.data() || m_under.data()->target() != targetWidget() || m_under.data()->size() != targetWidget()->size()) {
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setCopy();
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}
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m_under.data()->setOpacity(direction() == Forward ? 1 : 0);
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m_under.data()->setScale(direction() == Forward ? m_scale : m_endScale);
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} else if (newState == Stopped) {
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resetPulser();
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}
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}
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void PulseAnimation::updateCurrentTime(int currentTime)
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{
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if (m_under.data()) {
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qreal delta = Animation::easingCurve().valueForProgress( currentTime / qreal(duration()));
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delta = (1 - m_endScale) * delta;
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m_under.data()->setScale(1 - delta);
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delta = currentTime / qreal(duration());
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if (direction() == Forward) {
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m_under.data()->setOpacity(1.0 - delta);
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} else if (direction() == Backward) {
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m_under.data()->setOpacity(delta);
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}
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}
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}
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} //namespace Plasma
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