MultiGradientSelector.h

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//                   OpenMS -- Open-Source Mass Spectrometry
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// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2012.
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// $Maintainer: Timo Sachsenberg$
// $Authors: Marc Sturm $
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#ifndef OPENMS_VISUAL_MULTIGRADIENTSELECTOR_H
#define OPENMS_VISUAL_MULTIGRADIENTSELECTOR_H

//OpenMS
#include <OpenMS/CONCEPT/Types.h>
#include <OpenMS/VISUAL/MultiGradient.h>

//QT
#include <QtGui/QWidget>
class QPaintEvent;
class QMouseEvent;
class QKeyEvent;
class QContextMenuEvent;

//std lib
#include <vector>

namespace OpenMS
{

  class OPENMS_GUI_DLLAPI MultiGradientSelector :
    public QWidget
  {
    Q_OBJECT
public:
    MultiGradientSelector(QWidget * parent = 0);
    ~MultiGradientSelector();

    const MultiGradient & gradient() const;
    MultiGradient & gradient();

    void setInterpolationMode(MultiGradient::InterpolationMode mode);
    MultiGradient::InterpolationMode getInterpolationMode() const;

public slots:
    void stairsInterpolation(bool state);

protected:

    void paintEvent(QPaintEvent * e);
    void mousePressEvent(QMouseEvent * e);
    void mouseMoveEvent(QMouseEvent * e);
    void mouseReleaseEvent(QMouseEvent * e);
    void mouseDoubleClickEvent(QMouseEvent * e);
    void keyPressEvent(QKeyEvent * e);
    void contextMenuEvent(QContextMenuEvent * e);

    // the actual gradient
    MultiGradient gradient_;

    // border margin
    Int margin_;
    // height of the gradient area
    Int gradient_area_width_;
    // heigth of the lever area
    Int lever_area_height_;

    //position (0-100) in the vector of the selected lever
    Int selected_;
    //color of the selected lever
    QColor selected_color_;

    //stores if the left button is pressed
    bool left_button_pressed_;
  };

}
#endif // OPENMS_VISUAL_MULTIGRADIENTSELECTOR_H