ground/gcs/src/plugins/uavobjectwidgetutils/mixercurveline.h

   1 /**
   2  ******************************************************************************
   3  *
   4  * @file       mixercurveline.h
   5  * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
   6  * @addtogroup GCSPlugins GCS Plugins
   7  * @{
   8  * @addtogroup UAVObjectWidgetUtils Plugin
   9  * @{
  10  * @brief Utility plugin for UAVObject to Widget relation management
  11  *****************************************************************************/
  12 /*
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 3 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful, but
  19  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  20  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  21  * for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License along
  24  * with this program; if not, write to the Free Software Foundation, Inc.,
  25  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  26  */
  27
  28 /*
  29  * This is inspired by the elastic nodes and edges demo in the Qt examples
  30  * I have reinventing the wheel!
  31  */
  32
  33 #ifndef MIXERCURVELINE_H
  34 #define MIXERCURVELINE_H
  35
  36 #include <QGraphicsItem>
  37
  38 class MixerNode;
  39
  40 class Edge : public QGraphicsItem {
  41 public:
  42     Edge(MixerNode *sourceNode, MixerNode *destNode);
  43     ~Edge();
  44
  45     MixerNode *sourceNode() const;
  46     void setSourceNode(MixerNode *node);
  47
  48     MixerNode *destNode() const;
  49     void setDestNode(MixerNode *node);
  50
  51     void adjust();
  52
  53     enum { Type = UserType + 12 };
  54     int type() const
  55     {
  56         return Type;
  57     }
  58
  59 protected:
  60     QRectF boundingRect() const;
  61     void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
  62
  63 private:
  64     MixerNode *source, *dest;
  65
  66     QPointF sourcePoint;
  67     QPointF destPoint;
  68     qreal arrowSize;
  69 };
  70
  71 #endif // MIXERCURVELINE_H