SongEditor.h

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/*
 * SongEditor.h - declaration of class SongEditor, a window where you can
 *                 setup your songs
 *
 * Copyright (c) 2004-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
 *
 * 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_SONG_EDITOR_H
#define LMMS_GUI_SONG_EDITOR_H
 
#include "Editor.h"
#include "TrackContainerView.h"
 
class QLabel;
class QScrollBar;
 
namespace lmms
{
 
class IntModel;
class Song;
class ComboBoxModel;
 
namespace gui
{
 
 
class ActionGroup;
class AutomatableSlider;
class ComboBox;
class LcdSpinBox;
class MeterDialog;
class PositionLine;
class TextFloat;
class TimeLineWidget;
 
 
class SongEditor : public TrackContainerView
{
        Q_OBJECT
public:
        enum class EditMode
        {
                Draw,
                Knife,
                Select
        };
 
        SongEditor( Song * song );
        ~SongEditor() override = default;
 
        void saveSettings( QDomDocument& doc, QDomElement& element ) override;
        void loadSettings( const QDomElement& element ) override;
 
        ComboBoxModel* snappingModel() const;
        float getSnapSize() const;
        QString getSnapSizeString() const;
 
        TimeLineWidget* timeLine() const { return m_timeLine; }
        PositionLine* positionLine() const { return m_positionLine; }
 
public slots:
        void scrolled( int new_pos );
        void selectRegionFromPixels(int xStart, int xEnd);
        void stopSelectRegion();
        void updateRubberband();
 
        void setEditMode( lmms::gui::SongEditor::EditMode mode );
        void setEditModeDraw();
        void setEditModeKnife();
        void setEditModeSelect();
        void toggleProportionalSnap();
 
        void updatePosition();
        void updatePositionLine();
        void selectAllClips( bool select );
 
protected:
        void mousePressEvent(QMouseEvent * me) override;
        void mouseMoveEvent(QMouseEvent * me) override;
        void mouseReleaseEvent(QMouseEvent * me) override;
 
private slots:
        void setMasterVolume( int new_val );
        void showMasterVolumeFloat();
        void updateMasterVolumeFloat( int new_val );
        void hideMasterVolumeFloat();
 
        void setMasterPitch( int new_val );
        void showMasterPitchFloat();
        void updateMasterPitchFloat( int new_val );
        void hideMasterPitchFloat();
 
        void updateScrollBar(int len);
 
        void zoomingChanged();
 
private:
        void keyPressEvent( QKeyEvent * ke ) override;
        void wheelEvent( QWheelEvent * we ) override;
 
        bool allowRubberband() const override;
        bool knifeMode() const override;
 
        int calculatePixelsPerBar() const;
        int calculateZoomSliderValue(int pixelsPerBar) const;
 
        int trackIndexFromSelectionPoint(int yPos);
        int indexOfTrackView(const TrackView* tv);
 
        Song * m_song;
 
        QScrollBar * m_leftRightScroll;
 
        void adjustLeftRightScoll(int value);
 
        LcdSpinBox * m_tempoSpinBox;
 
        TimeLineWidget* m_timeLine;
        PositionLine* m_positionLine;
 
        MeterDialog * m_timeSigDisplay;
        AutomatableSlider * m_masterVolumeSlider;
        AutomatableSlider * m_masterPitchSlider;
 
        TextFloat * m_mvsStatus;
        TextFloat * m_mpsStatus;
 
 
        IntModel* m_zoomingModel;
        ComboBoxModel* m_snappingModel;
        bool m_proportionalSnap;
 
        bool m_scrollBack;
        bool m_smoothScroll;
 
        EditMode m_mode;
        EditMode m_ctrlMode; // mode they were in before they hit ctrl
 
        QPoint m_origin;
        QPoint m_scrollPos;
        QPoint m_mousePos;
        int m_rubberBandStartTrackview;
        TimePos m_rubberbandStartTimePos;
        int m_rubberbandPixelsPerBar; 
        int m_trackHeadWidth;
        bool m_selectRegion;
 
        friend class SongEditorWindow;
 
signals:
        void pixelsPerBarChanged(float);
        void proportionalSnapChanged();
} ;
 
 
 
 
class SongEditorWindow : public Editor
{
        Q_OBJECT
public:
        SongEditorWindow( Song* song );
 
        QSize sizeHint() const override;
 
        SongEditor* m_editor;
        void syncEditMode();
 
protected:
        void resizeEvent( QResizeEvent * event ) override;
        void changeEvent( QEvent * ) override;
 
protected slots:
        void play() override;
        void record() override;
        void recordAccompany() override;
        void stop() override;
 
        void lostFocus();
        void adjustUiAfterProjectLoad();
 
        void updateSnapLabel();
 
signals:
        void playTriggered();
        void resized();
 
private:
        QAction* m_addPatternTrackAction;
        QAction* m_addSampleTrackAction;
        QAction* m_addAutomationTrackAction;
        QAction* m_setProportionalSnapAction;
 
        ActionGroup * m_editModeGroup;
        QAction* m_drawModeAction;
        QAction* m_knifeModeAction;
        QAction* m_selectModeAction;
        QAction* m_crtlAction;
 
        AutomatableSlider * m_zoomingSlider;
        ComboBox * m_snappingComboBox;
        QLabel* m_snapSizeLabel;
 
        QAction* m_insertBarAction;
        QAction* m_removeBarAction;
};
 
} // namespace gui
 
} // namespace lmms
 
#endif // LMMS_GUI_SONG_EDITOR_H