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74 lines
1.9 KiB
74 lines
1.9 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_TQDEFERSCROLLVIEW_H_
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#define _RG_TQDEFERSCROLLVIEW_H_
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#include <tqscrollview.h>
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class TQWidget;
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class TQWheelEvent;
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namespace Rosegarden
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{
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/**
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* A TQScrollView which defers vertical scrolling (through mouse wheel)
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* elsewhere, typically another TQScrollView, so that both can be kept
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* in sync. The master scrollview will connect its vertical scrollbar
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* to the slave view so the scrollbar will act on both views.
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*
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* The slave scrollview will defer its scrolling to the master by
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* having the gotWheelEvent() signal connected to a slot in the master
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* scrollview, which will simply process the wheel event as if it had
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* received it itself.
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*
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* @see TrackEditor
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* @see SegmentCanvas
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* @see TrackEditor::m_trackButtonScroll
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*/
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class QDeferScrollView : public TQScrollView
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{
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TQ_OBJECT
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public:
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QDeferScrollView(TQWidget* parent=0, const char *name=0, WFlags f=0);
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void setBottomMargin(int);
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signals:
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void gotWheelEvent(TQWheelEvent*);
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protected:
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virtual void contentsWheelEvent(TQWheelEvent*);
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};
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}
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#endif
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