feedback parameters

5 files changed, 524 insertions, 2 deletions

diff --git a/muse2/muse/widgets/CMakeLists.txt b/muse2/muse/widgets/CMakeLists.txt
index e3921f70..261c27a2 100644
--- a/muse2/muse/widgets/CMakeLists.txt
+++ b/muse2/muse/widgets/CMakeLists.txt
@@ -42,6 +42,7 @@ QT4_WRAP_CPP (widget_mocs
       intlabel.h  
       knob.h  
       lcombo.h  
+      meter.h
       metronome.h  
       midisyncimpl.h  
       mixdowndialog.h  
@@ -75,7 +76,8 @@ QT4_WRAP_CPP (widget_mocs
       # ttoolbar.h  
       ttoolbutton.h  
       velocity.h  
-      view.h  
+      verticalmeter.h
+      view.h
       vscale.h
       visibletracks.h
       )
@@ -137,6 +139,7 @@ file (GLOB widgets_source_files
       intlabel.cpp 
       knob.cpp 
       lcombo.cpp 
+      meter.cpp
       metronome.cpp 
       midisyncimpl.cpp 
       mixdowndialog.cpp 
@@ -174,7 +177,8 @@ file (GLOB widgets_source_files
       ttoolbutton.cpp 
       utils.cpp 
       velocity.cpp 
-      view.cpp    
+      verticalmeter.cpp
+      view.cpp
       vscale.cpp
       visibletracks.cpp
       )
diff --git a/muse2/muse/widgets/meter.cpp b/muse2/muse/widgets/meter.cpp
new file mode 100644
index 00000000..6619d1dc
--- /dev/null
+++ b/muse2/muse/widgets/meter.cpp
@@ -0,0 +1,217 @@
+//=========================================================
+//  MusE
+//  Linux Music Editor
+//  $Id: meter.cpp,v 1.4.2.2 2009/05/03 04:14:00 terminator356 Exp $
+//
+//  (C) Copyright 2000 Werner Schweer (ws@seh.de)
+//=========================================================
+
+#include <stdio.h>
+#include <cmath>
+
+#include <QMouseEvent>
+#include <QPainter>
+#include <QResizeEvent>
+
+#include "meter.h"
+#include "gconfig.h"
+#include "fastlog.h"
+
+//---------------------------------------------------------
+//   Meter
+//---------------------------------------------------------
+
+Meter::Meter(QWidget* parent, MeterType type)
+   : QFrame(parent) //Qt::WNoAutoErase
+      {
+      setBackgroundRole(QPalette::NoRole);
+      setAttribute(Qt::WA_NoSystemBackground);
+      setAttribute(Qt::WA_StaticContents);
+      // This is absolutely required for speed! Otherwise painfully slow because we get 
+      //  full rect paint events even on small scrolls! See help on QPainter::scroll().
+      setAttribute(Qt::WA_OpaquePaintEvent);
+      
+      mtype = type;
+      overflow    = false;
+      val         = 0.0;
+      maxVal      = 0.0;
+      minScale    = mtype == DBMeter ? config.minMeter : 0.0;      // min value in dB or int
+      maxScale    = mtype == DBMeter ? 10.0 : 127.0;
+      yellowScale = -10;
+      redScale    = 0;
+      setLineWidth(0);
+      setMidLineWidth(0);
+      }
+
+//---------------------------------------------------------
+//   setVal
+//---------------------------------------------------------
+
+void Meter::setVal(double v, double max, bool ovl)
+      {
+      overflow = ovl;
+      bool ud = false;
+
+      if(mtype == DBMeter)
+      {
+        double minScaleLin = pow(10.0, minScale/20.0);
+        if((v >= minScaleLin && val != v) || val >= minScaleLin)
+        {
+          val = v;
+          ud = true;
+        }
+      }
+      else
+      {
+        if(val != v)
+        {
+          val = v;
+          ud = true;
+        }
+      }  
+      
+      if(maxVal != max)
+      {
+        maxVal = max;
+        ud = true;
+      }
+      
+      if(ud)
+        update();
+    }
+//---------------------------------------------------------
+//   resetPeaks
+//    reset peak and overflow indicator
+//---------------------------------------------------------
+
+void Meter::resetPeaks()
+      {
+      maxVal   = val;
+      overflow = val > 0.0;
+      update();
+      }
+
+//---------------------------------------------------------
+//   setRange
+//---------------------------------------------------------
+
+void Meter::setRange(double min, double max)
+      {
+      minScale = min;
+      maxScale = max;
+      update();
+      }
+
+//---------------------------------------------------------
+//   paintEvent
+//---------------------------------------------------------
+
+void Meter::paintEvent(QPaintEvent* /*ev*/)
+      {
+      // TODO: Could make better use of event rectangle, for speed.
+      
+      QPainter p(this);
+      
+      double range = maxScale - minScale;
+
+      int fw = frameWidth();
+      int w  = width() - 2*fw;
+      int h  = height() - 2*fw;
+      int yv;
+      
+      if(mtype == DBMeter)
+        yv = val == 0 ? h : int(((maxScale - (fast_log10(val) * 20.0)) * h)/range);
+      else
+        yv = val == 0 ? h : int(((maxScale - val) * h)/range);
+      
+      if(yv > h) yv = h;
+      
+      // Draw the red, green, and yellow sections.
+      drawVU(p, w, h, yv);
+      
+      // Draw the peak white line.
+      int ymax;
+      if(mtype == DBMeter)
+        ymax = maxVal == 0 ? 0 : int(((maxScale - (fast_log10(maxVal) * 20.0)) * h)/range);
+      else
+        ymax = maxVal == 0 ? 0 : int(((maxScale - maxVal) * h)/range);
+      p.setPen(Qt::white);
+      p.drawLine(0, ymax, w, ymax);
+      }
+
+//---------------------------------------------------------
+//   drawVU
+//---------------------------------------------------------
+
+void Meter::drawVU(QPainter& p, int w, int h, int yv)
+{
+      if(mtype == DBMeter)
+      {
+        double range = maxScale - minScale;
+        int y1 = int((maxScale - redScale) * h / range);
+        int y2 = int((maxScale - yellowScale) * h / range);
+        
+        if(yv < y1)
+        {
+          // Red section:
+          p.fillRect(0, 0,  w, yv,        QBrush(0x8e0000));     // dark red  
+          p.fillRect(0, yv, w, y1-yv,     QBrush(0xff0000));     // light red
+          
+          // Yellow section:
+          p.fillRect(0, y1, w, y2-y1,     QBrush(0xffff00));     // light yellow
+          
+          // Green section:
+          p.fillRect(0, y2, w, h-y2,      QBrush(0x00ff00));     // light green
+        }
+        else
+        if(yv < y2)
+        {
+          // Red section:
+          p.fillRect(0, 0,  w, y1,        QBrush(0x8e0000));     // dark red  
+          
+          // Yellow section:
+          p.fillRect(0, y1, w, yv-y1,     QBrush(0x8e8e00));     // dark yellow
+          p.fillRect(0, yv, w, y2-yv,     QBrush(0xffff00));     // light yellow
+          
+          // Green section:
+          p.fillRect(0, y2, w, h-y2,      QBrush(0x00ff00));     // light green
+        }
+        else
+        //if(yv <= y3)   
+        {
+          // Red section:
+          p.fillRect(0, 0,  w, y1,        QBrush(0x8e0000));     // dark red  
+          
+          // Yellow section:
+          p.fillRect(0, y1, w, y2-y1,     QBrush(0x8e8e00));     // dark yellow
+          
+          // Green section:
+          p.fillRect(0, y2, w, yv-y2,     QBrush(0x007000));     // dark green
+          p.fillRect(0, yv, w, h-yv,      QBrush(0x00ff00));     // light green
+        }
+      }  
+      else
+      {
+        p.fillRect(0, 0,  w, yv,   QBrush(0x007000));   // dark green
+        p.fillRect(0, yv, w, h-yv, QBrush(0x00ff00));   // light green
+      }
+}
+
+//---------------------------------------------------------
+//   resizeEvent
+//---------------------------------------------------------
+
+void Meter::resizeEvent(QResizeEvent* /*ev*/)
+    {
+    
+    }
+
+//---------------------------------------------------------
+//   mousePressEvent
+//---------------------------------------------------------
+
+void Meter::mousePressEvent(QMouseEvent*)
+      {
+      emit mousePress();
+      }
+
diff --git a/muse2/muse/widgets/meter.h b/muse2/muse/widgets/meter.h
new file mode 100644
index 00000000..2b816040
--- /dev/null
+++ b/muse2/muse/widgets/meter.h
@@ -0,0 +1,49 @@
+//=========================================================
+//  MusE
+//  Linux Music Editor
+//  $Id: meter.h,v 1.1.1.1.2.2 2009/05/03 04:14:00 terminator356 Exp $
+//
+//  (C) Copyright 2000 Werner Schweer (ws@seh.de)
+//=========================================================
+
+#ifndef __METER_H__
+#define __METER_H__
+
+#include <QFrame>
+
+class QResizeEvent;
+class QMouseEvent;
+class QPainter;
+
+
+class Meter : public QFrame {
+   public:
+      enum MeterType {DBMeter, LinMeter};
+   private:
+      MeterType mtype;
+      bool overflow;
+      double val;
+      double maxVal;
+      double minScale, maxScale;
+      int yellowScale, redScale;
+
+      void drawVU(QPainter& p, int, int, int);
+
+      Q_OBJECT
+      void paintEvent(QPaintEvent*);
+      void resizeEvent(QResizeEvent*);
+      void mousePressEvent(QMouseEvent*);
+
+   public slots:
+      void resetPeaks();
+      void setVal(double, double, bool);
+
+   signals:
+      void mousePress();
+
+   public:
+      Meter(QWidget* parent, MeterType type = DBMeter);
+      void setRange(double min, double max);
+      };
+#endif
+
diff --git a/muse2/muse/widgets/verticalmeter.cpp b/muse2/muse/widgets/verticalmeter.cpp
new file mode 100644
index 00000000..ca846886
--- /dev/null
+++ b/muse2/muse/widgets/verticalmeter.cpp
@@ -0,0 +1,209 @@
+//=========================================================
+//  MusE
+//  Linux Music Editor
+//  $Id: meter.cpp,v 1.4.2.2 2009/05/03 04:14:00 terminator356 Exp $
+//
+//  (C) Copyright 2000 Werner Schweer (ws@seh.de)
+//=========================================================
+
+#include <stdio.h>
+#include <cmath>
+
+#include <QMouseEvent>
+#include <QPainter>
+#include <QResizeEvent>
+
+#include "verticalmeter.h"
+#include "gconfig.h"
+#include "fastlog.h"
+
+//---------------------------------------------------------
+//   VerticalMeter
+//---------------------------------------------------------
+
+VerticalMeter::VerticalMeter(QWidget* parent, MeterType type)
+   : Meter(parent, type) //Qt::WNoAutoErase
+      {
+      setBackgroundRole(QPalette::NoRole);
+      setAttribute(Qt::WA_NoSystemBackground);
+      setAttribute(Qt::WA_StaticContents);
+      // This is absolutely required for speed! Otherwise painfully slow because we get 
+      //  full rect paint events even on small scrolls! See help on QPainter::scroll().
+      setAttribute(Qt::WA_OpaquePaintEvent);
+      
+      mtype = type;
+      overflow    = false;
+      val         = 0.0;
+      maxVal      = 0.0;
+      minScale    = mtype == DBMeter ? config.minMeter : 0.0;      // min value in dB or int
+      maxScale    = mtype == DBMeter ? 10.0 : 127.0;
+      yellowScale = -10;
+      redScale    = 0;
+      setLineWidth(0);
+      setMidLineWidth(0);
+      }
+
+
+//---------------------------------------------------------
+//   setVal
+//---------------------------------------------------------
+
+void VerticalMeter::setVal(double v) //, double max, bool ovl)
+      {
+      //overflow = ovl;
+      bool ud = false;
+
+      if(mtype == DBMeter)
+      {
+        double minScaleLin = pow(10.0, minScale/20.0);
+        if((v >= minScaleLin && val != v) || val >= minScaleLin)
+        {
+          val = v;
+          ud = true;
+        }
+      }
+      else
+      {
+        if(val != v)
+        {
+          val = v;
+          ud = true;
+        }
+      }
+
+//      if(maxVal != max)
+//      {
+//        maxVal = max;
+//        ud = true;
+//      }
+
+      if(ud)
+        update();
+    }
+//---------------------------------------------------------
+//   resetPeaks
+//    reset peak and overflow indicator
+//---------------------------------------------------------
+
+void VerticalMeter::resetPeaks()
+      {
+      maxVal   = val;
+      overflow = val > 0.0;
+      update();
+      }
+
+//---------------------------------------------------------
+//   setRange
+//---------------------------------------------------------
+
+void VerticalMeter::setRange(double min, double max)
+      {
+      minScale = min;
+      maxScale = max;
+      update();
+      }
+
+//---------------------------------------------------------
+//   paintEvent
+//---------------------------------------------------------
+
+void VerticalMeter::paintEvent(QPaintEvent* /*ev*/)
+      {
+      // TODO: Could make better use of event rectangle, for speed.
+      
+      QPainter p(this);
+      
+      double range = maxScale - minScale;
+
+      int fw = frameWidth();
+      int w  = width() - 2*fw;
+      int h  = height() - 2*fw;
+      int xv;
+
+
+      if(mtype == DBMeter) 
+        xv = val == 0 ? w : int(((maxScale - (fast_log10(val) * 20.0)) * w)/range);
+      else
+        xv = val == 0 ? w : int(((maxScale - val) * w)/range);
+      
+      if(xv > w) xv = w;
+      
+      // Draw the red, green, and yellow sections.
+      drawVU(p, w, h, xv);
+      
+      // Draw the peak white line.
+      int xcenter;
+      if(mtype == DBMeter) 
+        xcenter = maxVal == 0 ? 0 : int(((maxScale - (fast_log10(0) * 20.0)) * w)/range);
+      else
+        xcenter = maxVal == 0 ? 0 : int(((0) * w)/range);
+      p.setPen(Qt::white);
+      p.drawLine(xcenter, 0, xcenter, h);
+      }
+
+//---------------------------------------------------------
+//   drawVU
+//---------------------------------------------------------
+
+void VerticalMeter::drawVU(QPainter& p, int w, int h, int xv)
+{
+      if(mtype == DBMeter) 
+      {
+        double range = maxScale - minScale;
+        int x1 = int((maxScale - redScale) * w / range);
+        int x2 = int((maxScale - yellowScale) * w / range);
+        
+        if(xv < x1)
+        {
+          // Red section:
+          p.fillRect(0, 0,  xv, h,        QBrush(0x8e0000));     // dark red
+          p.fillRect(xv, 0, x1-xv, h,     QBrush(0xff0000));     // light red
+          
+          // Yellow section:
+          p.fillRect(x1, 0, x2-x1, h,     QBrush(0xffff00));     // light yellow
+          
+          // Green section:
+          p.fillRect(x2, 0, w-x2, h,      QBrush(0x00ff00));     // light green
+        }
+        else
+        if(xv < x2)
+        {
+          // Red section:
+          p.fillRect(0, 0,  x1, h,        QBrush(0x8e0000));     // dark red
+          
+          // Yellow section:
+          p.fillRect(x1, 0, xv-x1, h,     QBrush(0x8e8e00));     // dark yellow
+          p.fillRect(xv, 0, x2-xv, h,     QBrush(0xffff00));     // light yellow
+          
+          // Green section:
+          p.fillRect(x2, 0, w-x2, h,      QBrush(0x00ff00));     // light green
+        }
+        else
+        //if(yv <= y3)   
+        {
+          // Red section:
+          p.fillRect(0, 0,  x1, h,        QBrush(0x8e0000));     // dark red
+          
+          // Yellow section:
+          p.fillRect(x1, 0, x2-x1, h,     QBrush(0x8e8e00));     // dark yellow
+          
+          // Green section:
+          p.fillRect(x2, 0, xv-x2, h,     QBrush(0x007000));     // dark green
+          p.fillRect(xv, 0, w-xv, h,      QBrush(0x00ff00));     // light green
+        }
+      }  
+      else
+      {
+        p.fillRect(0, 0,  xv, h,   QBrush(0x00ff00));   // dark green
+        p.fillRect(xv, 0, w-xv, h, QBrush(0x007000));   // light green
+      }
+}
+
+//---------------------------------------------------------
+//   resizeEvent
+//---------------------------------------------------------
+
+void VerticalMeter::resizeEvent(QResizeEvent* /*ev*/)
+    {
+
+    }
diff --git a/muse2/muse/widgets/verticalmeter.h b/muse2/muse/widgets/verticalmeter.h
new file mode 100644
index 00000000..699be1e5
--- /dev/null
+++ b/muse2/muse/widgets/verticalmeter.h
@@ -0,0 +1,43 @@
+//=========================================================
+//  MusE
+//  Linux Music Editor
+//  $Id: meter.h,v 1.1.1.1.2.2 2009/05/03 04:14:00 terminator356 Exp $
+//
+//  (C) Copyright 2000 Werner Schweer (ws@seh.de)
+//=========================================================
+
+#ifndef __VERTICALMETER_H__
+#define __VERTICALMETER_H__
+
+#include <QFrame>
+#include "meter.h"
+
+class QResizeEvent;
+class QMouseEvent;
+class QPainter;
+
+class VerticalMeter : public Meter {
+   private:
+      MeterType mtype;
+      bool overflow;
+      double val;
+      double maxVal;
+      double minScale, maxScale;
+      int yellowScale, redScale;
+
+      void drawVU(QPainter& p, int, int, int);
+
+      Q_OBJECT
+      void paintEvent(QPaintEvent*);
+      void resizeEvent(QResizeEvent*);
+
+   public slots:
+      void resetPeaks();
+      void setVal(double);
+
+   public:
+      VerticalMeter(QWidget* parent, MeterType type = DBMeter);
+      void setRange(double min, double max);
+      };
+#endif
+