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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@547 0778d3d1-df1d-0410-868b-ea421aaaa00d
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
/*
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* graph.h - a QT widget for displaying and manipulating waveforms
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*
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* Copyright (c) 2006-2007 Andreas Brandmaier <andy/at/brandmaier/dot/de>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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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
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef _GRAPH_H
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#define _GRAPH_H
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#include <QtGui/QWidget>
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#include <QtGui/QPixmap>
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#include <QtGui/QCursor>
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class graph : public QWidget
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{
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Q_OBJECT
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public:
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graph( QWidget * _parent );
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virtual ~graph();
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void setSamplePointer( float * pointer, int length );
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void setBackground ( const QPixmap & _pixmap );
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void loadSampleFromFile( const QString & _filename );
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signals:
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void sampleSizeChanged( float f );
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void sampleChanged( void );
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protected:
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virtual void paintEvent( QPaintEvent * _pe );
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virtual void dropEvent( QDropEvent * _de );
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virtual void dragEnterEvent( QDragEnterEvent * _dee );
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virtual void mousePressEvent( QMouseEvent * _me );
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virtual void mouseMoveEvent( QMouseEvent * _me );
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virtual void mouseReleaseEvent( QMouseEvent * _me );
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private:
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void changeSampleAt(int _x, int _y);
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QPixmap m_background;
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float *samplePointer;
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int sampleLength;
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bool m_mouseDown;
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int m_lastCursorX;
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} ;
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#endif
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