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<?xml version="1.0" encoding="UTF-8"?>
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<title>Qt 4.8: pictureflow.h Example File (demos/embedded/fluidlauncher/pictureflow.h)</title>
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<h1 class="title">pictureflow.h Example File</h1>
<span class="small-subtitle">demos/embedded/fluidlauncher/pictureflow.h</span>
<!-- $$$demos/embedded/fluidlauncher/pictureflow.h-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the ActiveQt framework of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "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 Nokia Corporation and its Subsidiary(-ies) 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "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 THE COPYRIGHT
** OWNER OR CONTRIBUTORS 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
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
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****************************************************************************/</span>
<span class="comment">/*
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.
*/</span>
<span class="preprocessor">#ifndef PICTUREFLOW_H</span>
<span class="preprocessor">#define PICTUREFLOW_H</span>
<span class="preprocessor">#include <QWidget></span>
<span class="keyword">class</span> PictureFlowPrivate;
<span class="comment">/*!
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.
*/</span>
<span class="keyword">class</span> PictureFlow : <span class="keyword">public</span> <span class="type"><a href="qwidget.html">QWidget</a></span>
{
Q_OBJECT
Q_PROPERTY(<span class="type">int</span> slideCount READ slideCount WRITE setSlideCount)
Q_PROPERTY(<span class="type">int</span> currentSlide READ currentSlide WRITE setCurrentSlide)
Q_PROPERTY(<span class="type"><a href="qsize.html">QSize</a></span> slideSize READ slideSize WRITE setSlideSize)
Q_PROPERTY(<span class="type">int</span> zoomFactor READ zoomFactor WRITE setZoomFactor)
<span class="keyword">public</span>:
<span class="comment">/*!
Creates a new PictureFlow widget.
*/</span>
PictureFlow(<span class="type"><a href="qwidget.html">QWidget</a></span><span class="operator">*</span> parent <span class="operator">=</span> <span class="number">0</span>);
<span class="comment">/*!
Destroys the widget.
*/</span>
<span class="operator">~</span>PictureFlow();
<span class="comment">/*!
Returns the total number of slides.
*/</span>
<span class="type">int</span> slideCount() <span class="keyword">const</span>;
<span class="comment">/*!
Sets the total number of slides.
*/</span>
<span class="type">void</span> setSlideCount(<span class="type">int</span> count);
<span class="comment">/*!
Returns the dimension of each slide (in pixels).
*/</span>
<span class="type"><a href="qsize.html">QSize</a></span> slideSize() <span class="keyword">const</span>;
<span class="comment">/*!
Sets the dimension of each slide (in pixels).
*/</span>
<span class="type">void</span> setSlideSize(<span class="type"><a href="qsize.html">QSize</a></span> size);
<span class="comment">/*!
Sets the zoom factor (in percent).
*/</span>
<span class="type">void</span> setZoomFactor(<span class="type">int</span> zoom);
<span class="comment">/*!
Returns the zoom factor (in percent).
*/</span>
<span class="type">int</span> zoomFactor() <span class="keyword">const</span>;
<span class="comment">/*!
Clears any caches held to free up memory
*/</span>
<span class="type">void</span> clearCaches();
<span class="comment">/*!
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.
*/</span>
<span class="keyword">virtual</span> <span class="type"><a href="qimage.html">QImage</a></span> slide(<span class="type">int</span> index) <span class="keyword">const</span>;
<span class="comment">/*!
Sets an image for specified slide. If the slide already exists,
it will be replaced.
*/</span>
<span class="keyword">virtual</span> <span class="type">void</span> setSlide(<span class="type">int</span> index<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qimage.html">QImage</a></span><span class="operator">&</span> image);
<span class="keyword">virtual</span> <span class="type">void</span> setSlideCaption(<span class="type">int</span> index<span class="operator">,</span> <span class="type"><a href="qstring.html">QString</a></span> caption);
<span class="comment">/*!
Sets a pixmap for specified slide. If the slide already exists,
it will be replaced.
*/</span>
<span class="keyword">virtual</span> <span class="type">void</span> setSlide(<span class="type">int</span> index<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qpixmap.html">QPixmap</a></span><span class="operator">&</span> pixmap);
<span class="comment">/*!
Returns the index of slide currently shown in the middle of the viewport.
*/</span>
<span class="type">int</span> currentSlide() <span class="keyword">const</span>;
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="comment">/*!
Sets slide to be shown in the middle of the viewport. No animation
effect will be produced, unlike using showSlide.
*/</span>
<span class="type">void</span> setCurrentSlide(<span class="type">int</span> index);
<span class="comment">/*!
Clears images of all slides.
*/</span>
<span class="type">void</span> clear();
<span class="comment">/*!
Rerender the widget. Normally this function will be automatically invoked
whenever necessary, e.g. during the transition animation.
*/</span>
<span class="type">void</span> render();
<span class="comment">/*!
Shows previous slide using animation effect.
*/</span>
<span class="type">void</span> showPrevious();
<span class="comment">/*!
Shows next slide using animation effect.
*/</span>
<span class="type">void</span> showNext();
<span class="comment">/*!
Go to specified slide using animation effect.
*/</span>
<span class="type">void</span> showSlide(<span class="type">int</span> index);
<span class="keyword">signals</span>:
<span class="type">void</span> itemActivated(<span class="type">int</span> index);
<span class="type">void</span> inputReceived();
<span class="keyword">protected</span>:
<span class="type">void</span> paintEvent(<span class="type"><a href="qpaintevent.html">QPaintEvent</a></span> <span class="operator">*</span>event);
<span class="type">void</span> keyPressEvent(<span class="type"><a href="qkeyevent.html">QKeyEvent</a></span><span class="operator">*</span> event);
<span class="type">void</span> mouseMoveEvent(<span class="type"><a href="qmouseevent.html">QMouseEvent</a></span><span class="operator">*</span> event);
<span class="type">void</span> mousePressEvent(<span class="type"><a href="qmouseevent.html">QMouseEvent</a></span><span class="operator">*</span> event);
<span class="type">void</span> mouseReleaseEvent(<span class="type"><a href="qmouseevent.html">QMouseEvent</a></span><span class="operator">*</span> event);
<span class="type">void</span> resizeEvent(<span class="type"><a href="qresizeevent.html">QResizeEvent</a></span><span class="operator">*</span> event);
<span class="type">void</span> timerEvent(<span class="type"><a href="qtimerevent.html">QTimerEvent</a></span><span class="operator">*</span> event);
<span class="keyword">private</span>:
PictureFlowPrivate<span class="operator">*</span> d;
};
<span class="preprocessor">#endif // PICTUREFLOW_H</span></pre>
</div>
<!-- @@@demos/embedded/fluidlauncher/pictureflow.h -->
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