src/baseframe.h

/***************************************************************************
                          baseframe.h  -  description
                             -------------------
    begin                : Wed Feb 18 2004
    copyright            : (C) 2004 by Lynn Hazan
    email                : lynn.hazan@myrealbox.com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef BASEFRAME_H
#define BASEFRAME_H

// include files for QT
#include <qwidget.h>
#include <qframe.h>
#include <qcursor.h>

//include files for the application
#include "zoomwindow.h"

//General C++ include files
#include <iostream>
using namespace std;

class BaseFrame : public QFrame  {
   Q_OBJECT
   
public:

  typedef int Mode;

  enum {ZOOM = 1};

  BaseFrame(int Xborder,int Yborder,QWidget* parent=0, const char* name=0,QColor backgroundColor = Qt::black,
           int minSize = 500, int maxSize = 4000, int windowTopLeft = -500,int windowBottomRight = 1001, int border = 0);
     ~BaseFrame();
  
  virtual inline void willBeKilled(){};

  inline void setBorders(int x,int y){
   Xborder = x;
   Yborder = y; 
  };
  
public slots:

  virtual inline void updateDrawing(){};

  virtual inline void dockBeingClosed(){emit parentDockBeingClosed(this);};

  virtual void changeBackgroundColor(QColor color);

  virtual inline void setMode(BaseFrame::Mode selectedMode){mode = selectedMode;};
  
signals:
   /*s*Signals that the enclosing dockwidget is being closed
   * @param viewWidget pointer on the the current object.
   */
   void parentDockBeingClosed(QWidget* viewWidget);

protected:
  virtual void drawContents(QPainter* p)=0;

  virtual void resizeEvent(QResizeEvent* event);

  virtual void mousePressEvent(QMouseEvent* event); 

  virtual void mouseReleaseEvent(QMouseEvent* event);  

  virtual void mouseMoveEvent(QMouseEvent* event);

  virtual void mouseDoubleClickEvent(QMouseEvent* event);

  QPoint viewportToWorld(int vx, int vy);

  inline QPoint viewportToWorld(const QPoint& point){
    return viewportToWorld(point.x(), point.y());
  };

  QPoint worldToViewport(int wx, int wy);

  inline QPoint worldToViewport(const QPoint& point){
    return worldToViewport(point.x(), point.y());
  };

  long worldToViewportAbscissa(long wx);

  long worldToViewportOrdinate(long wy);

  void  drawRubber();

  inline long worldToViewportWidth(long width){
    float widthRatio = (static_cast<float>(viewport.width())/static_cast<float>(((QRect)window).width()));
    return static_cast<long>(width * widthRatio);
  };

  inline long worldToViewportHeight(long height){
    float heightRatio = (static_cast<float>(viewport.height())/static_cast<float>(((QRect)window).height()));
    return static_cast<long>(height * heightRatio);
  };

  inline long viewportToWorldWidth(long width){
    float widthRatio = (static_cast<float>(((QRect)window).width())/static_cast<float>(viewport.width()));
    return static_cast<long>(width * widthRatio);
  };

  inline long viewportToWorldHeight(long height){
    float heightRatio = (static_cast<float>(((QRect)window).height())/static_cast<float>(viewport.height()));
    return static_cast<long>(height * heightRatio);
  };

  inline void drawRubberBand(bool draw,bool vertical = false){
   isRubberBandToBeDrawn = draw;
   wholeHeightRectangle = vertical;
  };

//Members

  enum DrawContentsMode{REFRESH=1, UPDATE=2,REDRAW=3};

  const int MIN_SIZE; //Default 500
  const int MAX_SIZE; //Default 4000
  const int BORDER; //Default 0
  const int WINDOW_TOP_LEFT; //Default -500
  const int WINDOW_BOTTOM_RIGHT; //Default 1001

  QSize oldSize;
  QRect viewport;

  ZoomWindow window;
  QPoint firstClick;
  bool isDoubleClick;
  QRect* rubber;

  DrawContentsMode drawContentsMode;

   Mode mode;

  QCursor zoomCursor;

  int Xborder;

  int Yborder;

  bool isRubberBandToBeDrawn;

  bool wholeHeightRectangle;

  QColor colorLegend;
  
};

#endif

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