#ifndef GRADIENT_VIEW_H#define GRADIENT_VIEW_H/**************************************************************************\ * *  This file is part of the Coin 3D visualization library. *  Copyright (C) 1998-2003 by Systems in Motion.  All rights reserved. * *  This library is free software; you can redistribute it and/or *  modify it under the terms of the GNU General Public License *  ("GPL") version 2 as published by the Free Software Foundation. *  See the file LICENSE.GPL at the root directory of this source *  distribution for additional information about the GNU GPL. * *  For using Coin with software that can not be combined with the GNU *  GPL, and for taking advantage of the additional benefits of our *  support services, please contact Systems in Motion about acquiring *  a Coin Professional Edition License. * *  See <URL:http://www.coin3d.org> for more information. * *  Systems in Motion, Teknobyen, Abels Gate 5, 7030 Trondheim, NORWAY. *  <URL:http://www.sim.no>. *\**************************************************************************/#include "qtsupport.h"#include "Gradient.h"class TickMark;class QPainter;class QMouseEvent;class QResizeEvent;class ImageItem;class QPopupMenu;class QStatusBar;// *************************************************************************class GradientView : public QCanvasView{  Q_OBJECTpublic:  GradientView(QCanvas * c = 0,               const Gradient & g = Gradient(),                QWidget * parent = 0,                const char * name = 0,                Qt::WFlags f = 0);    ~GradientView();  void setGradient(const Gradient & grad);  const Gradient & getGradient(void) const;  void insertTick(float t);  void setChangeCallback(Gradient::ChangeCB * cb, void * userdata);  void setDataLimits(float min, float max);  QSize sizeHint(void) const;public slots:  void updateTicks(void);  void updateView(void);  signals:  void viewChanged(void);  void tickSelected(void);  void mouseMoved(int x);  void ticksChanged(void);protected:  void contentsMousePressEvent(QMouseEvent *);  void contentsMouseReleaseEvent(QMouseEvent *);  void contentsMouseMoveEvent(QMouseEvent *);  void viewportResizeEvent(QResizeEvent *);  void buildMenu();  void unselectAll(void);private slots:  void copySegmentColorRight(void);  void copySegmentColorLeft(void);  void chooseSegmentColorLeft(void);  void chooseSegmentColorRight(void);  void chooseTickColorLeft(void);  void chooseTickColorRight(void);  void copyTickColorLeft(void);  void copyTickColorRight(void);  void insertTick(void);  void centerTick(void);  void deleteTick(void);  private:  void setGradientColor(unsigned int tickmarkidx, Gradient::TickSide side, QRgb col);  void setGradientColor(unsigned int tickmarkidx, Gradient::TickSide side);  TickMark * newTick(int x);  QCanvas * canvas;  Gradient grad;  ImageItem * graditem;  ImageItem * selectionmarker;  QPopupMenu * menu;  QValueList<TickMark*> tickmarks;  QStatusBar * statusbar;  int currenttick;  int segmentidx;  float min, max;  QPoint moving_start;  SbBool mousepressed;};#endif // ! GRADIENT_VIEW_H