demos/embedded/fluidlauncher/pictureflow.h - qt-s60 in Qt

/****************************************************************************
**
** Copyright (C) 2010 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
** 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."
** $QT_END_LICENSE$
**
**
****************************************************************************/

/*
  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

1	/****************************************************************************
2	**
3	** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4	** All rights reserved.
5	** Contact: Nokia Corporation (qt-info@nokia.com)
6	**
7	** This file is part of the ActiveQt framework of the Qt Toolkit.
8	**
9	** $QT_BEGIN_LICENSE:BSD$
10	** You may use this file under the terms of the BSD license as follows:
11	**
12	** "Redistribution and use in source and binary forms, with or without
13	** modification, are permitted provided that the following conditions are
14	** met:
15	** * Redistributions of source code must retain the above copyright
16	** notice, this list of conditions and the following disclaimer.
17	** * Redistributions in binary form must reproduce the above copyright
18	** notice, this list of conditions and the following disclaimer in
19	** the documentation and/or other materials provided with the
20	** distribution.
21	** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
22	** the names of its contributors may be used to endorse or promote
23	** products derived from this software without specific prior written
24	** permission.
25	**
26	** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27	** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28	** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29	** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30	** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31	** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32	** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33	** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34	** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35	** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36	** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
37	** $QT_END_LICENSE$
38	**
39	**
40	****************************************************************************/
41
42	/*
43	ORIGINAL COPYRIGHT HEADER
44	PictureFlow - animated image show widget
45	http://pictureflow.googlecode.com
46
47	Copyright (C) 2007 Ariya Hidayat (ariya@kde.org)
48
49	Permission is hereby granted, free of charge, to any person obtaining a copy
50	of this software and associated documentation files (the "Software"), to deal
51	in the Software without restriction, including without limitation the rights
52	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
53	copies of the Software, and to permit persons to whom the Software is
54	furnished to do so, subject to the following conditions:
55
56	The above copyright notice and this permission notice shall be included in
57	all copies or substantial portions of the Software.
58
59	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
60	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
61	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
62	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
63	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
64	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
65	THE SOFTWARE.
66	*/
67
68	#ifndef PICTUREFLOW_H
69	#define PICTUREFLOW_H
70
71	#include <QWidget>
72
73	class PictureFlowPrivate;
74
75	/*!
76	Class PictureFlow implements an image show widget with animation effect
77	like Apple's CoverFlow (in iTunes and iPod). Images are arranged in form
78	of slides, one main slide is shown at the center with few slides on
79	the left and right sides of the center slide. When the next or previous
80	slide is brought to the front, the whole slides flow to the right or
81	the right with smooth animation effect; until the new slide is finally
82	placed at the center.
83
84	*/
85	class PictureFlow : public QWidget
86	{
87	Q_OBJECT
88
89	Q_PROPERTY(int slideCount READ slideCount WRITE setSlideCount)
90	Q_PROPERTY(int currentSlide READ currentSlide WRITE setCurrentSlide)
91	Q_PROPERTY(QSize slideSize READ slideSize WRITE setSlideSize)
92	Q_PROPERTY(int zoomFactor READ zoomFactor WRITE setZoomFactor)
93
94	public:
95	/*!
96	Creates a new PictureFlow widget.
97	*/
98	PictureFlow(QWidget* parent = 0);
99
100	/*!
101	Destroys the widget.
102	*/
103	~PictureFlow();
104
105	/*!
106	Returns the total number of slides.
107	*/
108	int slideCount() const;
109
110	/*!
111	Sets the total number of slides.
112	*/
113	void setSlideCount(int count);
114
115	/*!
116	Returns the dimension of each slide (in pixels).
117	*/
118	QSize slideSize() const;
119
120	/*!
121	Sets the dimension of each slide (in pixels).
122	*/
123	void setSlideSize(QSize size);
124
125	/*!
126	Sets the zoom factor (in percent).
127	*/
128	void setZoomFactor(int zoom);
129
130	/*!
131	Returns the zoom factor (in percent).
132	*/
133	int zoomFactor() const;
134
135	/*!
136	Clears any caches held to free up memory
137	*/
138	void clearCaches();
139
140	/*!
141	Returns QImage of specified slide.
142	This function will be called only whenever necessary, e.g. the 100th slide
143	will not be retrived when only the first few slides are visible.
144	*/
145	virtual QImage slide(int index) const;
146
147	/*!
148	Sets an image for specified slide. If the slide already exists,
149	it will be replaced.
150	*/
151	virtual void setSlide(int index, const QImage& image);
152
153	virtual void setSlideCaption(int index, QString caption);
154
155	/*!
156	Sets a pixmap for specified slide. If the slide already exists,
157	it will be replaced.
158	*/
159	virtual void setSlide(int index, const QPixmap& pixmap);
160
161	/*!
162	Returns the index of slide currently shown in the middle of the viewport.
163	*/
164	int currentSlide() const;
165
166	public slots:
167
168	/*!
169	Sets slide to be shown in the middle of the viewport. No animation
170	effect will be produced, unlike using showSlide.
171	*/
172	void setCurrentSlide(int index);
173
174	/*!
175	Clears images of all slides.
176	*/
177	void clear();
178
179	/*!
180	Rerender the widget. Normally this function will be automatically invoked
181	whenever necessary, e.g. during the transition animation.
182	*/
183	void render();
184
185	/*!
186	Shows previous slide using animation effect.
187	*/
188	void showPrevious();
189
190	/*!
191	Shows next slide using animation effect.
192	*/
193	void showNext();
194
195	/*!
196	Go to specified slide using animation effect.
197	*/
198	void showSlide(int index);
199
200	signals:
201	void itemActivated(int index);
202	void inputReceived();
203
204	protected:
205	void paintEvent(QPaintEvent *event);
206	void keyPressEvent(QKeyEvent* event);
207	void mouseMoveEvent(QMouseEvent* event);
208	void mousePressEvent(QMouseEvent* event);
209	void mouseReleaseEvent(QMouseEvent* event);
210	void resizeEvent(QResizeEvent* event);
211	void timerEvent(QTimerEvent* event);
212
213	private:
214	PictureFlowPrivate* d;
215	};
216
217	#endif // PICTUREFLOW_H

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