copasi/plotUI/scrollzoomer.h

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/* Begin CVS Header
 $Source: /fs/turing/cvs/copasi_dev/copasi/plotUI/scrollzoomer.h,v $
 $Revision: 1.6 $
 $Name: Build-33 $
 $Author: shoops $
 $Date: 2008/12/18 19:04:22 $
 End CVS Header */

// Copyright (C) 2008 by Pedro Mendes, Virginia Tech Intellectual
// Properties, Inc., EML Research, gGmbH, University of Heidelberg,
// and The University of Manchester.
// All rights reserved.

// Copyright © 1997   Josef Wilgen
// Copyright © 2002   Uwe Rathmann
//
// This file is published under the Qwt License, Version 1.0.
// You should have received a copy of this licence in the file
// QwtLicense.
//
// Modifications made to the original are
// Copyright © 2006 by Pedro Mendes, Virginia Tech Intellectual
// Properties, Inc. and EML Research, gGmbH.
// All rights reserved.

#ifndef _SCROLLZOOMER_H
#define _SCROLLZOOMER_H

#include <qglobal.h>

#if QT_VERSION < 0x040000
# include <q3scrollview.h>
#endif

#include <qwt_plot_zoomer.h>
//Added by qt3to4:
#include <QEvent>

class ScrollData;
class ScrollBar;

class LogPlotZoomer: public QwtPlotZoomer
  {
    Q_OBJECT

  public:
    LogPlotZoomer(QwtPlotCanvas *canvas);

  public slots:
    virtual
    void move(double x, double y);

  protected:
    virtual QwtText trackerText(const QwtDoublePoint &pos) const;
  };

class ScrollZoomer: public LogPlotZoomer
  {
    Q_OBJECT
  public:
    enum ScrollBarPosition
    {
      AttachedToScale,
      OppositeToScale
    };

    ScrollZoomer(QwtPlotCanvas *);
    virtual ~ScrollZoomer();

    ScrollBar *horizontalScrollBar() const;
    ScrollBar *verticalScrollBar() const;

#if QT_VERSION < 0x040000
    void setHScrollBarMode(Q3ScrollView::ScrollBarMode);
    void setVScrollBarMode(Q3ScrollView::ScrollBarMode);

    Q3ScrollView::ScrollBarMode vScrollBarMode () const;
    Q3ScrollView::ScrollBarMode hScrollBarMode () const;
#else
    void setHScrollBarMode(Qt::ScrollBarPolicy);
    void setVScrollBarMode(Qt::ScrollBarPolicy);

    Qt::ScrollBarPolicy vScrollBarMode () const;
    Qt::ScrollBarPolicy hScrollBarMode () const;
#endif

    void setHScrollBarPosition(ScrollBarPosition);
    void setVScrollBarPosition(ScrollBarPosition);

    ScrollBarPosition hScrollBarPosition() const;
    ScrollBarPosition vScrollBarPosition() const;

    QWidget* cornerWidget() const;
    virtual void setCornerWidget(QWidget *);

    virtual bool eventFilter(QObject *, QEvent *);

    virtual void rescale();

  protected:
    virtual ScrollBar *scrollBar(Qt::Orientation);
    virtual void updateScrollBars();
    virtual void layoutScrollBars(const QRect &);

  private slots:
    void scrollBarMoved(Qt::Orientation o, double min, double max);

  private:
    bool needScrollBar(Qt::Orientation) const;
    int oppositeAxis(int) const;

    QWidget *d_cornerWidget;

    ScrollData *d_hScrollData;
    ScrollData *d_vScrollData;
  };

#endif