PatternEditorRuler.h

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/*
 * Hydrogen
 * Copyright(c) 2002-2008 by Alex >Comix< Cominu [comix@users.sourceforge.net]
 * Copyright(c) 2008-2024 The hydrogen development team [hydrogen-devel@lists.sourceforge.net]
 *
 * http://www.hydrogen-music.org
 *
 * 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. If not, see https://www.gnu.org/licenses
 *
 */
 
#ifndef PATTERN_EDITOR_RULER_H
#define PATTERN_EDITOR_RULER_H
 
#include "../EventListener.h"
#include <QtGui>
#include <QtWidgets>
#include "../Widgets/WidgetWithScalableFont.h"
 
#include <core/Object.h>
#include <core/Preferences/Preferences.h>
 
class PatternEditorPanel;
 
namespace H2Core
{
        class Pattern;
}
 
class PatternEditorRuler :  public QWidget, protected WidgetWithScalableFont<8, 10, 12>,  public H2Core::Object<PatternEditorRuler>, public EventListener
{
    H2_OBJECT(PatternEditorRuler)
        Q_OBJECT
 
        public:
                explicit PatternEditorRuler( QWidget* parent );
                ~PatternEditorRuler();
        
                PatternEditorRuler(const PatternEditorRuler&) = delete;
                PatternEditorRuler& operator=( const PatternEditorRuler& rhs ) = delete;
 
                void paintEvent(QPaintEvent *ev) override;
                void updateStart(bool start);
        void updatePosition( bool bForce = false );
 
                void showEvent( QShowEvent *ev ) override;
                void hideEvent( QHideEvent *ev ) override;
        void mouseMoveEvent( QMouseEvent *ev ) override;
        void mousePressEvent( QMouseEvent *ev ) override;
        void leaveEvent( QEvent *ev ) override;
 
                void zoomIn();
                void zoomOut();
                float getGridWidth() const {
                        return m_fGridWidth;
                };
 
                void createBackground();
                void invalidateBackground();
                bool m_bBackgroundInvalid;
 
        public slots:
                void updateEditor( bool bRedrawAll = false );
                void onPreferencesChanged( H2Core::Preferences::Changes changes );
 
        private:
                uint m_nRulerWidth;
                uint m_nRulerHeight;
                float m_fGridWidth;
 
                QPixmap *m_pBackgroundPixmap;
 
                QTimer *m_pTimer;
                int m_nTick;
                H2Core::Pattern *m_pPattern;
 
        int m_nHoveredColumn;
        int m_nWidthActive;
        bool updateActiveRange();
 
                // Implements EventListener interface
                virtual void selectedPatternChangedEvent() override;
        virtual void stateChangedEvent( H2Core::AudioEngine::State ) override;
        virtual void songModeActivationEvent() override;
        virtual void relocationEvent() override;
        virtual void playingPatternsChangedEvent() override;
                // ~ Implements EventListener interface
};
 
 
#endif