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147 lines
3.8 KiB
147 lines
3.8 KiB
/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#ifndef _RG_LOOPRULER_H_
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#define _RG_LOOPRULER_H_
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#include "base/SnapGrid.h"
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#include "gui/general/HZoomable.h"
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#include <tqsize.h>
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#include <tqwidget.h>
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#include <tqpen.h>
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#include "base/Event.h"
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class TQPaintEvent;
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class TQPainter;
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class TQMouseEvent;
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namespace Rosegarden
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{
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class RulerScale;
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class RosegardenGUIDoc;
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/**
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* LoopRuler is a widget that shows bar and beat durations on a
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* ruler-like scale, and reacts to mouse clicks by sending relevant
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* signals to modify position pointer and playback/looping states.
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*/
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class LoopRuler : public TQWidget, public HZoomable
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{
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TQ_OBJECT
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public:
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LoopRuler(RosegardenGUIDoc *doc,
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RulerScale *rulerScale,
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int height = 0,
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double xorigin = 0.0,
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bool invert = false,
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TQWidget* parent = 0,
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const char *name = 0);
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~LoopRuler();
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void setSnapGrid(SnapGrid *grid);
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virtual TQSize sizeHint() const;
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virtual TQSize minimumSizeHint() const;
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void scrollHoriz(int x);
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void setMinimumWidth(int width) { m_width = width; }
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void setHorizScaleFactor(double dy) { m_hScaleFactor = dy; }
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bool hasActiveMousePress() { return m_activeMousePress; }
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bool getLoopingMode() { return m_loopingMode; }
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public slots:
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void slotSetLoopMarker(timeT startLoop,
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timeT endLoop);
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protected:
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// ActiveItem interface
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virtual void mousePressEvent (TQMouseEvent*);
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virtual void mouseReleaseEvent (TQMouseEvent*);
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virtual void mouseDoubleClickEvent (TQMouseEvent*);
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virtual void mouseMoveEvent (TQMouseEvent*);
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virtual void paintEvent(TQPaintEvent*);
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void setLoopingMode(bool value) { m_loopingMode = value; }
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void drawBarSections(TQPainter*);
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void drawLoopMarker(TQPainter*); // between loop positions
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signals:
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// The three main functions that this class performs
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//
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/// Set the pointer position on mouse single click
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void setPointerPosition(timeT);
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/// Set the pointer position on mouse drag
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void dragPointerToPosition(timeT);
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/// Set pointer position and start playing on double click
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void setPlayPosition(timeT);
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/// Set a playing loop
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void setLoop(timeT, timeT);
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/// Set the loop end position on mouse drag
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void dragLoopToPosition(timeT);
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void startMouseMove(int directionConstraint);
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void stopMouseMove();
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void mouseMove();
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protected:
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//--------------- Data members ---------------------------------
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int m_height;
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double m_xorigin;
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bool m_invert;
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int m_currentXOffset;
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int m_width;
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bool m_activeMousePress;
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RosegardenGUIDoc *m_doc;
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bool m_mainWindow;
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RulerScale *m_rulerScale;
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SnapGrid m_defaultGrid;
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SnapGrid m_loopGrid;
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SnapGrid *m_grid;
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TQPen m_quickMarkerPen;
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bool m_loopingMode;
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timeT m_startLoop;
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timeT m_endLoop;
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};
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}
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#endif
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