Draggable.h

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/*
 * Draggable.h
 *
 * Copyright (c) 2025 Lost Robot <r94231/at/gmail/dot/com>
 *
 * This file is part of LMMS - https://lmms.io
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program (see COPYING); if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA.
 *
 */
 
#ifndef LMMS_GUI_DRAGGABLE_H
#define LMMS_GUI_DRAGGABLE_H
 
#include "FloatModelEditorBase.h"
 
namespace lmms::gui
{

class LMMS_EXPORT Draggable : public FloatModelEditorBase
{
    Q_OBJECT
 
public:
    using FloatModelEditorBase::DirectionOfManipulation;
    
    Draggable(DirectionOfManipulation directionOfManipulation,
        FloatModel* floatModel, const QPixmap& pixmap, int pointA, int pointB, QWidget* parent = nullptr);
 
    QSize sizeHint() const override;
    void setPixmap(const QPixmap& pixmap);
    void setDefaultValPixmap(const QPixmap& pixmap, float value = 0.f);
 
protected:
    void paintEvent(QPaintEvent* event) override;
    void mouseMoveEvent(QMouseEvent* me) override;
 
protected slots:
    void handleMovement();
 
private:
    QPixmap m_pixmap;
    QPixmap m_defaultValPixmap;
    float m_pointA;
    float m_pointB;
    float m_defaultValue;
    bool m_hasDefaultValPixmap;
};
 
} // namespace lmms::gui
 
#endif // LMMS_GUI_DRAGGABLE_H