QvisScribbleOpacityBar.h 3.79 KB
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/*****************************************************************************
*
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* Copyright (c) 2000 - 2013, Lawrence Livermore National Security, LLC
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* Produced at the Lawrence Livermore National Laboratory
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* LLNL-CODE-442911
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* All rights reserved.
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* This file is  part of VisIt. For  details, see https://visit.llnl.gov/.  The
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* full copyright notice is contained in the file COPYRIGHT located at the root
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* Redistribution  and  use  in  source  and  binary  forms,  with  or  without
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*    documentation and/or other materials provided with the distribution.
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*    specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT  HOLDERS AND CONTRIBUTORS "AS IS"
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* ARE  DISCLAIMED. IN  NO EVENT  SHALL LAWRENCE  LIVERMORE NATIONAL  SECURITY,
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#ifndef QVIS_SCRIBBLE_OPACITY_BAR_H
#define QVIS_SCRIBBLE_OPACITY_BAR_H
#include <gui_exports.h>
#include <QvisAbstractOpacityBar.h>

class QPixmap;

// ****************************************************************************
//  Class:  QvisScribbleOpacityBar
//
//  Purpose:
//    Freeform implementation of OpacityBar
//
//  Programmer:  Jeremy Meredith
//  Creation:    January 30, 2001
//
//  Modifications:
//     Brad Whitlock, Fri Apr 6 12:22:25 PDT 2001
//     Added some new slots to set some default opacity ramps.
//
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//     Gunther Weber, Fri Apr  6 16:20:55 PDT 2007
//     Add support for an inverse linear ramp.
//
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//     Brad Whitlock, Wed Jun  4 09:19:29 PDT 2008
//     Qt 4.
//
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//     Brad Whitlock, Thu Dec 18 14:10:55 PST 2008
//     I changed the drawOpacities method.
//
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// ****************************************************************************

class GUI_API QvisScribbleOpacityBar : public QvisAbstractOpacityBar
{
    Q_OBJECT
public:
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    QvisScribbleOpacityBar(QWidget *parent);
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    ~QvisScribbleOpacityBar();
    float *getRawOpacities(int);
    void   setRawOpacities(int,float*);

signals:
    void opacitiesChanged();

public slots:
    void makeTotallyZero();
    void makeLinearRamp();
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    void makeInverseLinearRamp();
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    void makeTotallyOne();
    void smoothCurve();
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    void makeTent();
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protected:
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    virtual void mouseMoveEvent(QMouseEvent*);
    virtual void mousePressEvent(QMouseEvent*);
    virtual void mouseReleaseEvent(QMouseEvent*);
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    void setValue(float,float);
    void setValues(int,int,int,int);
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    virtual void drawOpacities();
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private:
    int nvalues;
    float *values;
    bool mousedown;
    int lastx;
    int lasty;
};

#endif