demos/qtdemo/demoitemanimation.h

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 2009 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 demonstration applications of the Qt Toolkit.
   8 **
   9 ** $QT_BEGIN_LICENSE:LGPL$
  10 ** No Commercial Usage
  11 ** This file contains pre-release code and may not be distributed.
  12 ** You may use this file in accordance with the terms and conditions
  13 ** contained in the Technology Preview License Agreement accompanying
  14 ** this package.
  15 **
  16 ** GNU Lesser General Public License Usage
  17 ** Alternatively, this file may be used under the terms of the GNU Lesser
  18 ** General Public License version 2.1 as published by the Free Software
  19 ** Foundation and appearing in the file LICENSE.LGPL included in the
  20 ** packaging of this file.  Please review the following information to
  21 ** ensure the GNU Lesser General Public License version 2.1 requirements
  22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
  23 **
  24 ** In addition, as a special exception, Nokia gives you certain additional
  25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
  26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
  27 **
  28 ** If you have questions regarding the use of this file, please contact
  29 ** Nokia at qt-info@nokia.com.
  30 **
  31 **
  32 **
  33 **
  34 **
  35 **
  36 **
  37 **
  38 ** $QT_END_LICENSE$
  39 **
  40 ****************************************************************************/
  41
  42 #ifndef DEMO_ITEM_ANIMATION_H
  43 #define DEMO_ITEM_ANIMATION_H
  44
  45 #include <QtCore>
  46 #include <QtGui>
  47
  48 class DemoItem;
  49
  50 class DemoItemAnimation : public QGraphicsItemAnimation
  51 {
  52     Q_OBJECT
  53
  54 public:
  55     enum INOROUT {ANIM_IN, ANIM_OUT, ANIM_UNSPECIFIED};
  56
  57     DemoItemAnimation(DemoItem *item, INOROUT inOrOut = ANIM_UNSPECIFIED);
  58     virtual ~DemoItemAnimation();
  59
  60     virtual void play(bool fromStart = true, bool force = false);
  61     virtual void playReverse();
  62     virtual void stop(bool reset = true);
  63     virtual void setRepeat(int nr = 0);
  64
  65     void setDuration(int duration);
  66     void setDuration(float duration){ setDuration(int(duration)); };
  67     void setOpacityAt0(qreal opacity);
  68     void setOpacityAt1(qreal opacity);
  69     void setOpacity(qreal step);
  70     void setCurrentTime(int ms);
  71     void setStartPos(const QPointF &pos);
  72     bool notOwnerOfItem();
  73
  74     bool running();
  75     bool runningOrItemLocked();
  76     void lockItem(bool state);
  77     void prepare();
  78
  79     DemoItem *demoItem();
  80
  81     virtual void afterAnimationStep(qreal step); // overridden
  82
  83     QTimeLine *timeline;
  84     qreal opacityAt0;
  85     qreal opacityAt1;
  86     int startDelay;
  87     QPointF startPos;
  88     bool hideOnFinished;
  89     bool moveOnPlay;
  90     bool forcePlay;
  91     bool fromStart;
  92     INOROUT inOrOut;
  93
  94 private slots:
  95     virtual void playWithoutDelay();
  96 };
  97
  98 #endif // DEMO_ITEM_ANIMATION_H
  99
 100
 101