Traverso/cvs/traverso/src/sheetcanvas/SheetView.h

/*
    Copyright (C) 2005-2007 Remon Sijrier 
 
    This file is part of Traverso
 
    Traverso 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, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
 
*/

#ifndef SONG_VIEW_H
#define SONG_VIEW_H

#include "ViewItem.h"
#include <QTimer>

class Sheet;
class TrackView;
class ClipsViewPort;
class TrackPanelViewPort;
class TimeLineViewPort;
class Track;
class SheetWidget;
class TrackView;
class PlayHead;
class WorkCursor;
class Curve;

class SheetView : public ViewItem
{
        Q_OBJECT
        Q_CLASSINFO("touch", tr("Set"))
        Q_CLASSINFO("touch_play_cursor", tr("Set"))
        Q_CLASSINFO("center", tr("Center View"))
        Q_CLASSINFO("scroll_right", tr("Right"))
        Q_CLASSINFO("scroll_left", tr("Left"))
        Q_CLASSINFO("scroll_up", tr("Up"))
        Q_CLASSINFO("scroll_down", tr("Down"))
        Q_CLASSINFO("shuttle", tr("Shuttle"))
        Q_CLASSINFO("goto_begin", tr("To start"))
        Q_CLASSINFO("goto_end", tr("To end"))
        Q_CLASSINFO("play_to_begin", tr("To Start"))
        Q_CLASSINFO("play_cursor_move", tr("Move"))
        Q_CLASSINFO("work_cursor_move", tr("Move"))
        Q_CLASSINFO("add_marker", tr("Add Marker"))
        Q_CLASSINFO("add_marker_at_playhead", tr("Add Marker at Playhead"))
        Q_CLASSINFO("playhead_to_workcursor", tr("To workcursor"))
        Q_CLASSINFO("center_playhead", tr("Center"))

public :

        SheetView(SheetWidget* sheetwidget,
                        ClipsViewPort* viewPort,
                        TrackPanelViewPort* tpvp, 
                        TimeLineViewPort* tlvp, 
                        Sheet* sheet);
        ~SheetView();
        
        void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) {};
        QRectF boundingRect() const {return QRectF();}
        
        Sheet* get_sheet() const {return m_sheet;}
        TrackPanelViewPort* get_trackpanel_view_port() const;
        ClipsViewPort* get_clips_viewport() const;
        
        TrackView* get_trackview_under(QPointF point);
        
        void load_theme_data();
        void start_shuttle(bool start, bool drag=false);
        void update_shuttle_factor();
        void set_shuttle_factor_values(int x, int y);
        void vzoom(qreal scale);
        void hzoom(qreal scale);
        void clipviewport_resize_event();
        int hscrollbar_value() const;
        int vscrollbar_value() const;
        int get_peak_cache_zoom_factor() const {return m_peakCacheZoomFactor;}

        qint64          timeref_scalefactor;

private:
        Sheet*                  m_sheet;
        Curve*                  m_shuttleCurve;
        Curve*                  m_dragShuttleCurve;
        PlayHead*               m_playCursor;
        ClipsViewPort*          m_clipsViewPort;
        TrackPanelViewPort*     m_tpvp;
        TimeLineViewPort*       m_tlvp;
        QList<TrackView*>       m_trackViews;
        WorkCursor*             m_workCursor;
        int                     m_shuttleXfactor;
        int                     m_shuttleYfactor;
        int                     m_sceneHeight;
        int                     m_peakCacheZoomFactor;
        bool                    m_dragShuttle;
        QTimer                  m_shuttletimer;
        QScrollBar*             m_vScrollBar;
        QScrollBar*             m_hScrollBar;
        bool                    m_actOnPlayHead;
        bool                    m_viewportReady;
        
        // Themeing data
        int     m_trackSeperatingHeight;
        int     m_trackMinimumHeight;
        int     m_trackMaximumHeight;
        int     m_trackTopIndent;
        
        void layout_tracks();
        void set_hscrollbar_value(int value);
        void set_vscrollbar_value(int value);
        
        int mean_track_height();
        
        friend class PlayHead;


public slots:
        void set_snap_range(int);
        void update_scrollbars();
        void stop_follow_play_head();
        void follow_play_head();
        void set_follow_state(bool state);
        void transport_position_set();

        Command* touch();
        Command* touch_play_cursor();
        Command* center();
        Command* scroll_right();
        Command* scroll_left();
        Command* scroll_up();
        Command* scroll_down();
        Command* shuttle();
        Command* goto_begin();
        Command* goto_end();
        Command* play_to_begin();
        Command* play_cursor_move();
        Command* work_cursor_move();
        Command* add_marker();
        Command* add_marker_at_playhead();
        Command* playhead_to_workcursor();
        Command* center_playhead();
        
private slots:
        void scale_factor_changed();
        void add_new_trackview(Track*);
        void remove_trackview(Track*);
        void update_shuttle();
        void sheet_mode_changed();
        void hscrollbar_value_changed(int);
        void hscrollbar_action(int);
};


#endif

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