KisGradientSliderWidget.h

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/*
 *  SPDX-FileCopyrightText: 2004 Cyrille Berger <[email protected]>
 *                2004 Sven Langkamp <[email protected]>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#ifndef _KIS_GRADIENT_SLIDER_WIDGET_H_
#define _KIS_GRADIENT_SLIDER_WIDGET_H_
 
#include <QWidget>
#include <QMouseEvent>
#include <QPaintEvent>
 
#include <KoSegmentGradient.h>
 
class QAction;
class QMenu;
 
class KoGradientSegment;
 
#include "kritawidgets_export.h"
 
class KRITAWIDGETS_EXPORT KisGradientSliderWidget : public QWidget
{
    Q_OBJECT
 
public:
    KisGradientSliderWidget(QWidget *parent = 0, const char* name = 0, Qt::WindowFlags f = Qt::WindowFlags());
 
public:
    void paintEvent(QPaintEvent *) override;
    void setGradientResource(KoSegmentGradientSP agr);
    KoGradientSegment *selectedSegment() { return m_selectedSegment; }
 
Q_SIGNALS:
    void sigSelectedSegment(KoGradientSegment*);
    void sigChangedSegment(KoGradientSegment*);
 
protected:
    void mousePressEvent(QMouseEvent * e) override;
    void mouseReleaseEvent(QMouseEvent * e) override;
    void mouseMoveEvent(QMouseEvent * e) override;
    void contextMenuEvent(QContextMenuEvent * e) override;
 
    void paintSegmentHandle(int position, const QString text, const QPoint& textPos, QPainter& painter);
 
private Q_SLOTS:
    void slotSplitSegment();
    void slotDuplicateSegment();
    void slotMirrorSegment();
    void slotRemoveSegment();
 
private:
 
    enum {
        NO_DRAG,
        LEFT_DRAG,
        RIGHT_DRAG,
        MIDDLE_DRAG
    };
 
    enum {
        SPLIT_SEGMENT,
        DUPLICATE_SEGMENT,
        MIRROR_SEGMENT,
        REMOVE_SEGMENT
    };
 
    KoSegmentGradientSP m_autogradientResource;
    KoGradientSegment* m_currentSegment;
    KoGradientSegment* m_selectedSegment;
    QMenu* m_segmentMenu;
    int m_drag;
    QAction *m_removeSegmentAction;
};
 
#endif