ground/openpilotgcs/src/plugins/coreplugin/styleanimator.h

   1 /**
   2  ******************************************************************************
   3  *
   4  * @file       styleanimator.h
   5  * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
   6  *             Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
   7  * @addtogroup GCSPlugins GCS Plugins
   8  * @{
   9  * @addtogroup CorePlugin Core Plugin
  10  * @{
  11  * @brief The Core GCS plugin
  12  *****************************************************************************/
  13 /*
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 3 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful, but
  20  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  21  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  22  * for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License along
  25  * with this program; if not, write to the Free Software Foundation, Inc.,
  26  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  27  */
  28
  29 #ifndef ANIMATION_H
  30 #define ANIMATION_H
  31
  32 #include <QtCore/QPointer>
  33 #include <QtCore/QTime>
  34 #include <QtCore/QBasicTimer>
  35 #include <QStyle>
  36 #include <QPainter>
  37 #include <QWidget>
  38
  39 /*
  40  * This is a set of helper classes to allow for widget animations in
  41  * the style. Its mostly taken from Vista style so it should be fully documented
  42  * there.
  43  *
  44  */
  45
  46 class Animation {
  47 public:
  48     Animation() : m_running(true) {}
  49     virtual ~Animation() {}
  50     QWidget *widget() const
  51     {
  52         return m_widget;
  53     }
  54     bool running() const
  55     {
  56         return m_running;
  57     }
  58     const QTime &startTime() const
  59     {
  60         return m_startTime;
  61     }
  62     void setRunning(bool val)
  63     {
  64         m_running = val;
  65     }
  66     void setWidget(QWidget *widget)
  67     {
  68         m_widget = widget;
  69     }
  70     void setStartTime(const QTime &startTime)
  71     {
  72         m_startTime = startTime;
  73     }
  74     virtual void paint(QPainter *painter, const QStyleOption *option);
  75
  76 protected:
  77     void drawBlendedImage(QPainter *painter, QRect rect, float value);
  78     QTime m_startTime;
  79     QPointer<QWidget> m_widget;
  80     QImage m_primaryImage;
  81     QImage m_secondaryImage;
  82     QImage m_tempImage;
  83     bool m_running;
  84 };
  85
  86 // Handles state transition animations
  87 class Transition : public Animation {
  88 public:
  89     Transition() : Animation() {}
  90     virtual ~Transition() {}
  91     void setDuration(int duration)
  92     {
  93         m_duration = duration;
  94     }
  95     void setStartImage(const QImage &image)
  96     {
  97         m_primaryImage = image;
  98     }
  99     void setEndImage(const QImage &image)
 100     {
 101         m_secondaryImage = image;
 102     }
 103     virtual void paint(QPainter *painter, const QStyleOption *option);
 104     int duration() const
 105     {
 106         return m_duration;
 107     }
 108     int m_duration; // set time in ms to complete a state transition
 109 };
 110
 111 class StyleAnimator : public QObject {
 112     Q_OBJECT
 113
 114 public:
 115     StyleAnimator(QObject *parent = 0) : QObject(parent) {}
 116
 117     void timerEvent(QTimerEvent *);
 118     void startAnimation(Animation *);
 119     void stopAnimation(const QWidget *);
 120     Animation *widgetAnimation(const QWidget *) const;
 121
 122 private:
 123     QBasicTimer animationTimer;
 124     QList <Animation *> animations;
 125 };
 126
 127 #endif // ANIMATION_H