115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// customanimation.cpp //
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// //
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// Copyright (C) 2010 Igor Oliveira <igor.oliveira@openbossa.org> //
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// Copyright (C) 2010 Adenilson Cavalcanti <cavalcantii@gmail.com //
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// //
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// This library is free software; you can redistribute it and/or //
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// modify it under the terms of the GNU Lesser General Public //
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// License as published by the Free Software Foundation; either //
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// version 2.1 of the License, or (at your option) any later version. //
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// //
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// This library 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 GNU //
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// Lesser General Public License for more details. //
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// //
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// You should have received a copy of the GNU Lesser General Public //
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// License along with this library; if not, write to the Free Software //
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA //
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// 02110-1301 USA //
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/////////////////////////////////////////////////////////////////////////
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#include "customanimation_p.h"
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#include <QString>
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namespace Plasma
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{
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CustomAnimation::CustomAnimation(QObject *parent)
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: Animation(parent)
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{
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}
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QString CustomAnimation::callback() const
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{
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return m_method;
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}
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void CustomAnimation::setCallback(const QString &slot)
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{
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m_method = slot;
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}
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QVariant CustomAnimation::startValue() const
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{
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return m_startValue;
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}
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void CustomAnimation::setStartValue(const QVariant &value)
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{
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m_startValue = value;
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}
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QVariant CustomAnimation::endValue() const
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{
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return m_endValue;
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}
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void CustomAnimation::setEndValue(const QVariant &value)
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{
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m_endValue = value;
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}
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void CustomAnimation::updateCurrentTime(int currentTime)
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{
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QGraphicsWidget *obj = targetWidget();
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if (obj) {
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qreal delta = currentTime / qreal(duration());
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delta = Animation::easingCurve().valueForProgress(delta);
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const QVariant retValue = interpolate(startValue(), endValue(), delta);
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QMetaObject::invokeMethod(obj, m_method.toUtf8().data(), Q_ARG(QVariant, retValue));
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}
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Animation::updateCurrentTime(currentTime);
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}
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QVariant CustomAnimation::interpolate(const QVariant &start, const QVariant &end, qreal delta)
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{
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QVariant retValue;
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if (start.type() != end.type()) {
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return retValue;
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}
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if (start.type() == QVariant::Double) {
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qreal realStartValue = start.toReal();
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qreal realEndValue = end.toReal();
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qreal retRealValue = (realStartValue - realEndValue) * delta;
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retValue = QVariant(retRealValue);
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} else if (start.type() == QVariant::Int) {
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int intStartValue = start.toInt();
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int intEndValue = end.toInt();
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int retIntValue = (intStartValue - intEndValue) * delta;
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retValue = QVariant(retIntValue);
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} else if (start.type() == QVariant::RectF) {
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QRectF rectfStartValue = start.toRectF();
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QRectF rectfEndValue = end.toRectF();
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QRectF retRectfValue = QRectF((rectfStartValue.x() - rectfEndValue.x()) * delta,
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(rectfStartValue.y() - rectfEndValue.x()) * delta,
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(rectfStartValue.width() - rectfEndValue.width()) * delta,
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(rectfStartValue.height() - rectfEndValue.height()) * delta);
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retValue = QVariant(retRectfValue);
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}
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return retValue;
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}
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}
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