71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/***********************************************************************/
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/* kineticscroll.h */
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/* */
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/* Copyright(C) 2009 Igor Trindade Oliveira <igor.oliveira@indt.org.br>*/
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/* Copyright(C) 2009 Adenilson Cavalcanti <adenilson.silva@idnt.org.br>*/
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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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#ifndef PLASMA_KINETICSCROLLING_H
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#define PLASMA_KINETICSCROLLING_H
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class QGraphicsSceneMouseEvent;
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class QGraphicsWidget;
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class QGraphicsSceneWheelEvent;
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class QKeyEvent;
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#include <QObject>
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#include <QPointF>
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namespace Plasma
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{
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class KineticScrollingPrivate;
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class KineticScrolling: public QObject
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{
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Q_OBJECT
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public:
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KineticScrolling(QGraphicsWidget *parent);
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~KineticScrolling();
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void setWidget(QGraphicsWidget *parent);
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protected:
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void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
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void mousePressEvent(QGraphicsSceneMouseEvent *event);
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void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
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void wheelReleaseEvent(QGraphicsSceneWheelEvent *event);
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void keyPressEvent(QKeyEvent *event);
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private:
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KineticScrollingPrivate *d;
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void resetAnimation(QPointF finalPosition, int duration);
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void setScrollValue(QPointF value);
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QPointF thresholdPosition(QPointF value) const;
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void duration();
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private Q_SLOTS:
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void overshoot();
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protected:
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bool eventFilter(QObject *watched, QEvent *event);
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};
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}
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#endif
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