QtCollider/widgets/QcScopeShm.h

   1 /************************************************************************
   2 *
   3 * Copyright 2010-2011 Jakob Leben (jakob.leben@gmail.com)
   4 *
   5 * This file is part of Qt GUI for SuperCollider.
   6 *
   7 * This program is free software: you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License as published by
   9 * the Free Software Foundation, either version 3 of the License, or
  10 * (at your option) any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 *
  20 ************************************************************************/
  21
  22 #ifndef QC_SCOPE_H
  23 #define QC_SCOPE_H
  24
  25 #include "../QcHelper.h"
  26
  27 #include <SC_Types.h>
  28
  29 #include <QWidget>
  30
  31 // FIXME: Due to Qt bug #22829, moc can not process headers that include
  32 // boost/type_traits/detail/has_binary_operator.hp from boost 1.48, so
  33 // we have to wrap the shm interface into a separate class.
  34
  35 namespace QtCollider
  36 {
  37   class ScopeShm;
  38 }
  39
  40 using QtCollider::ScopeShm;
  41
  42 class QcScopeShm : public QWidget, QcHelper
  43 {
  44   Q_OBJECT
  45   Q_PROPERTY( int serverPort READ serverPort WRITE setServerPort );
  46   Q_PROPERTY( int bufferNumber READ dummyInt WRITE setBufferNumber );
  47   Q_PROPERTY( float xOffset READ dummyFloat WRITE setXOffset );
  48   Q_PROPERTY( float yOffset READ dummyFloat WRITE setYOffset );
  49   Q_PROPERTY( float xZoom READ dummyFloat WRITE setXZoom );
  50   Q_PROPERTY( float yZoom READ dummyFloat WRITE setYZoom );
  51   Q_PROPERTY( int style READ style WRITE setStyle );
  52   Q_PROPERTY( VariantList waveColors READ dummyVariantList WRITE setWaveColors );
  53   Q_PROPERTY( QColor background READ background WRITE setBackground );
  54   Q_PROPERTY( int updateInterval READ updateInterval WRITE setUpdateInterval );
  55   Q_PROPERTY( bool running READ running );
  56
  57   public:
  58     QcScopeShm();
  59     ~QcScopeShm();
  60     int serverPort() const { return _srvPort; }
  61     void setServerPort( int );
  62     void setBufferNumber( int );
  63     void setXOffset( float f ) { xOffset = f; }
  64     void setYOffset( float f ) { yOffset = f; }
  65     void setXZoom( float f ) { xZoom = f; }
  66     void setYZoom( float f ) { yZoom = f; }
  67     int style() const { return _style; }
  68     void setStyle( int i ) { _style = i; }
  69     void setWaveColors( const VariantList & colors );
  70     QColor background() const { return _bkg; }
  71     void setBackground( const QColor &c ) { _bkg = c; update(); }
  72     int updateInterval() const;
  73     void setUpdateInterval( int i );
  74     bool running() const { return _running; }
  75     QSize sizeHint() const { return QSize( 500, 300 ); }
  76     QSize minimumSizeHint() const { return QSize( 50, 50 ); }
  77   public Q_SLOTS:
  78     void start();
  79     void stop();
  80   protected:
  81     void resizeEvent ( QResizeEvent * );
  82     void paintEvent ( QPaintEvent * );
  83   private Q_SLOTS:
  84     void updateScope();
  85   private:
  86     void connectSharedMemory( int port );
  87     void initScopeReader( ScopeShm *, int index );
  88     void paint1D( bool overlapped, int channels, int maxFrames, int frames, const QRect &area, QPainter & );
  89     void paint2D( int channels, int maxFrames, int frames, const QRect &area, QPainter & );
  90
  91     int _srvPort;
  92     int _scopeIndex;
  93
  94     ScopeShm *_shm;
  95
  96     bool _running;
  97     float *_data;
  98     uint _availableFrames;
  99
 100     QTimer *timer;
 101     float xOffset;
 102     float yOffset;
 103     float xZoom;
 104     float yZoom;
 105     int _style;
 106     QList<QColor> colors;
 107     QColor _bkg;
 108
 109     QPixmap _pixmap;
 110 };
 111
 112 #endif