FloatModelEditorBase.h

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/*
 * FloatModelEditorBase.h - Base editor for float models
 *
 * Copyright (c) 2004-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
 * Copyright (c) 2023 Michael Gregorius
 *
 * 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_FLOAT_MODEL_EDITOR_BASE_H
#define LMMS_GUI_FLOAT_MODEL_EDITOR_BASE_H
 
#include <QWidget>
#include <QPoint>
 
#include "AutomatableModelView.h"
 
 
namespace lmms::gui
{
 
class SimpleTextFloat;
 
class LMMS_EXPORT FloatModelEditorBase : public QWidget, public FloatModelView
{
        Q_OBJECT
 
        mapPropertyFromModel(float, volumeRatio, setVolumeRatio, m_volumeRatio);
 
        void initUi(const QString & name); 
 
public:
        enum class DirectionOfManipulation
        {
                Vertical,
                Horizontal
        };
 
        FloatModelEditorBase(DirectionOfManipulation directionOfManipulation = DirectionOfManipulation::Vertical, QWidget * _parent = nullptr, const QString & _name = QString()); 
        FloatModelEditorBase(const FloatModelEditorBase& other) = delete;
 
        // TODO: remove
        inline void setHintText(const QString & txt_before, const QString & txt_after)
        {
                setDescription(txt_before);
                setUnit(txt_after);
        }
 
        bool isVolumeKnob() const
        {
                return m_volumeKnob;
        }       
 
        void setVolumeKnob(const bool val)
        {
                m_volumeKnob = val;
        }
 
signals:
        void sliderPressed();
        void sliderReleased();
        void sliderMoved(float value);
 
 
protected:
        void contextMenuEvent(QContextMenuEvent * me) override;
        void dragEnterEvent(QDragEnterEvent * dee) override;
        void dropEvent(QDropEvent * de) override;
        void focusOutEvent(QFocusEvent * fe) override;
        void mousePressEvent(QMouseEvent * me) override;
        void mouseReleaseEvent(QMouseEvent * me) override;
        void mouseMoveEvent(QMouseEvent * me) override;
        void mouseDoubleClickEvent(QMouseEvent * me) override;
        void paintEvent(QPaintEvent * me) override;
        void wheelEvent(QWheelEvent * me) override;
 
#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
        void enterEvent(QEnterEvent*) override;
#else
        void enterEvent(QEvent*) override;
#endif
        void leaveEvent(QEvent *event) override;
 
        virtual float getValue(const QPoint & p);
        virtual QString displayValue() const;
 
        void doConnections() override;
 
        void showTextFloat(int msecBeforeDisplay, int msecDisplayTime);
        void setPosition(const QPoint & p);
 
        inline float pageSize() const
        {
                return (model()->maxValue() - model()->minValue()) / 100.0f;
        }
 
        static SimpleTextFloat * s_textFloat;
 
        bool m_volumeKnob;
        FloatModel m_volumeRatio;
 
        QPoint m_lastMousePos; 
        float m_leftOver;
        bool m_buttonPressed;
 
        DirectionOfManipulation m_directionOfManipulation;
 
private slots:
        virtual void enterValue();
        void friendlyUpdate();
        void toggleScale();
};
 
} // namespace lmms::gui
 
#endif // LMMS_GUI_FLOAT_MODEL_EDITOR_BASE_H