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92 lines
2.3 KiB
92 lines
2.3 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_AUDIOPREVIEWUPDATER_H_
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#define _RG_AUDIOPREVIEWUPDATER_H_
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#include <stdint.h>
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#include <unistd.h>
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#include <tqobject.h>
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#include <tqrect.h>
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#include <vector>
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class TQEvent;
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namespace Rosegarden
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{
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class Segment;
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class CompositionModelImpl;
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class Composition;
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class AudioPreviewThread;
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class AudioPreviewUpdater : public TQObject
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{
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TQ_OBJECT
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public:
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AudioPreviewUpdater(AudioPreviewThread &thread,
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const Composition &composition,
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const Segment *segment,
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const TQRect &displayExtent,
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CompositionModelImpl *parent);
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~AudioPreviewUpdater();
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void update();
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void cancel();
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TQRect getDisplayExtent() const { return m_rect; }
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void setDisplayExtent(const TQRect &rect) { m_rect = rect; }
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const Segment *getSegment() const { return m_segment; }
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const std::vector<float> &getComputedValues(unsigned int &channels) const
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{ channels = m_channels; return m_values; }
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signals:
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void audioPreviewComplete(AudioPreviewUpdater*);
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protected:
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virtual bool event(TQEvent*);
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AudioPreviewThread& m_thread;
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const Composition& m_composition;
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const Segment* m_segment;
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TQRect m_rect;
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bool m_showMinima;
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unsigned int m_channels;
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std::vector<float> m_values;
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intptr_t m_previewToken;
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};
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}
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#endif
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