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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This is a version of the Pictureflow animated image show widget modified by Nokia.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** * Neither the name of the <organization> nor the
** names of its contributors may be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY
** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
** DISCLAIMED. IN NO EVENT SHALL Nokia Corporation BE LIABLE FOR ANY
** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
****************************************************************************/
/*
ORIGINAL COPYRIGHT HEADER
PictureFlow - animated image show widget
http://pictureflow.googlecode.com
Copyright (C) 2007 Ariya Hidayat (ariya@kde.org)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#ifndef PICTUREFLOW_H
#define PICTUREFLOW_H
#include <QWidget>
class PictureFlowPrivate;
/*!
Class PictureFlow implements an image show widget with animation effect
like Apple's CoverFlow (in iTunes and iPod). Images are arranged in form
of slides, one main slide is shown at the center with few slides on
the left and right sides of the center slide. When the next or previous
slide is brought to the front, the whole slides flow to the right or
the right with smooth animation effect; until the new slide is finally
placed at the center.
*/
class PictureFlow : public QWidget
{
Q_OBJECT
Q_PROPERTY(int slideCount READ slideCount WRITE setSlideCount)
Q_PROPERTY(int currentSlide READ currentSlide WRITE setCurrentSlide)
Q_PROPERTY(QSize slideSize READ slideSize WRITE setSlideSize)
Q_PROPERTY(int zoomFactor READ zoomFactor WRITE setZoomFactor)
public:
/*!
Creates a new PictureFlow widget.
*/
PictureFlow(QWidget* parent = 0);
/*!
Destroys the widget.
*/
~PictureFlow();
/*!
Returns the total number of slides.
*/
int slideCount() const;
/*!
Sets the total number of slides.
*/
void setSlideCount(int count);
/*!
Returns the dimension of each slide (in pixels).
*/
QSize slideSize() const;
/*!
Sets the dimension of each slide (in pixels).
*/
void setSlideSize(QSize size);
/*!
Sets the zoom factor (in percent).
*/
void setZoomFactor(int zoom);
/*!
Returns the zoom factor (in percent).
*/
int zoomFactor() const;
/*!
Clears any caches held to free up memory
*/
void clearCaches();
/*!
Returns QImage of specified slide.
This function will be called only whenever necessary, e.g. the 100th slide
will not be retrived when only the first few slides are visible.
*/
virtual QImage slide(int index) const;
/*!
Sets an image for specified slide. If the slide already exists,
it will be replaced.
*/
virtual void setSlide(int index, const QImage& image);
virtual void setSlideCaption(int index, QString caption);
/*!
Sets a pixmap for specified slide. If the slide already exists,
it will be replaced.
*/
virtual void setSlide(int index, const QPixmap& pixmap);
/*!
Returns the index of slide currently shown in the middle of the viewport.
*/
int currentSlide() const;
public slots:
/*!
Sets slide to be shown in the middle of the viewport. No animation
effect will be produced, unlike using showSlide.
*/
void setCurrentSlide(int index);
/*!
Clears images of all slides.
*/
void clear();
/*!
Rerender the widget. Normally this function will be automatically invoked
whenever necessary, e.g. during the transition animation.
*/
void render();
/*!
Shows previous slide using animation effect.
*/
void showPrevious();
/*!
Shows next slide using animation effect.
*/
void showNext();
/*!
Go to specified slide using animation effect.
*/
void showSlide(int index);
signals:
void itemActivated(int index);
void inputReceived();
protected:
void paintEvent(QPaintEvent *event);
void keyPressEvent(QKeyEvent* event);
void mouseMoveEvent(QMouseEvent* event);
void mousePressEvent(QMouseEvent* event);
void mouseReleaseEvent(QMouseEvent* event);
void resizeEvent(QResizeEvent* event);
void timerEvent(QTimerEvent* event);
private:
PictureFlowPrivate* d;
};
#endif // PICTUREFLOW_H
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