1 files changed, 193 insertions, 0 deletions
diff --git a/attic/muse2-oom/muse2/muse/widgets/doublelabel.cpp b/attic/muse2-oom/muse2/muse/widgets/doublelabel.cpp
new file mode 100644
index 00000000..fe2bfc6a
--- /dev/null
+++ b/attic/muse2-oom/muse2/muse/widgets/doublelabel.cpp
@@ -0,0 +1,193 @@
+//=========================================================
+//  MusE
+//  Linux Music Editor
+//    $Id: doublelabel.cpp,v 1.1.1.1.2.2 2008/08/18 00:15:26 terminator356 Exp $
+//  (C) Copyright 1999 Werner Schweer (ws@seh.de)
+//=========================================================
+
+#include <cmath>
+
+#include "doublelabel.h"
+
+//---------------------------------------------------------
+//   DoubleLabel
+//---------------------------------------------------------
+
+DoubleLabel::DoubleLabel(QWidget* parent, const char* name)
+   : Dentry(parent, name), _specialText("---")
+      {
+      min        = 0.0;
+      max        = 1.0;
+      _off        = -1.0;
+      _precision = 3;
+      setValue(0.0);
+      }
+
+DoubleLabel::DoubleLabel(double _val, double m, double mx, QWidget* parent)
+   : Dentry(parent), _specialText("---")
+      {
+      min = m;
+      max = mx;
+      _off = m - 1.0;
+      _precision = 3;
+      setValue(_val);
+      }
+
+//---------------------------------------------------------
+//   setOff
+//---------------------------------------------------------
+
+void DoubleLabel::setOff(double v)
+{
+  _off = v;
+  setString(val);
+}
+
+//---------------------------------------------------------
+//   calcIncrement()
+//---------------------------------------------------------
+
+double DoubleLabel::calcIncrement() const
+{
+  double dif;
+  if(max - min > 0)
+    dif = max - min;
+  else  
+    dif = min - max;
+    
+  if(dif <= 10.0)
+    return 0.1;   
+  else
+  if(dif <= 100.0)
+    return 1.0;
+  else
+    return 10.0;  
+}
+
+//---------------------------------------------------------
+//   setString
+//---------------------------------------------------------
+
+bool DoubleLabel::setString(double v)
+      {
+      if(v <= _off || v > max) 
+      {
+            setText(_specialText);
+            return true;
+      }
+      else
+      if(v < min) 
+      {
+        setText(QString("---"));
+        return true;
+      } 
+      else
+      {
+        QString s;
+        s.setNum(v, 'f', _precision);
+        if (!_suffix.isEmpty()) {
+              s += " ";
+              s += _suffix;
+              }
+  
+        setText(s);
+      }  
+      return false;
+      }
+
+//---------------------------------------------------------
+//   setSValue
+//---------------------------------------------------------
+
+bool DoubleLabel::setSValue(const QString& s)
+      {
+      bool ok;
+      double v = s.toDouble(&ok);
+      if (ok && (v != val)) {
+            if (v < min)
+                  v = min;
+            if (v > max)
+                  v = max;
+            setValue(v);
+            emit valueChanged(val, _id);
+            }
+      return false;
+      }
+
+//---------------------------------------------------------
+//   incValue
+//---------------------------------------------------------
+
+void DoubleLabel::incValue(double)
+      {
+      if(val >= max)
+        return;
+      double inc = calcIncrement();
+      if(val + inc >= max)
+        setValue(max);
+      else  
+        setValue(val + inc);
+      emit valueChanged(val, _id);
+      }
+
+//---------------------------------------------------------
+//   decValue
+//---------------------------------------------------------
+
+void DoubleLabel::decValue(double)
+      {
+      if(val <= min)
+        return;
+      double inc = calcIncrement();
+      if(val - inc <= min)
+        setValue(min);
+      else  
+        setValue(val - inc);
+      emit valueChanged(val, _id);
+      }
+
+//---------------------------------------------------------
+//   setPrecision
+//---------------------------------------------------------
+
+void DoubleLabel::setPrecision(int v)
+      {
+      _precision = v;
+      setString(val);
+      }
+
+//---------------------------------------------------------
+//   sizeHint
+//---------------------------------------------------------
+
+QSize DoubleLabel::sizeHint() const
+      {
+      QFontMetrics fm = fontMetrics();
+      int h           = fm.height() + 4;
+      int n = _precision;
+      
+      ++n;  // For some reason I have to add one digit. Shouldn't have to.
+      double aval = fmax(fabs(max), fabs(min));
+      if (aval >= 10.0)
+            ++n;
+      if (aval >= 100.0)
+            ++n;
+      if (aval >= 1000.0)
+            ++n;
+      if (aval >= 10000.0)
+            ++n;
+      if (aval >= 100000.0)
+            ++n;
+      
+      int w = fm.width(QString("-0.")) + fm.width('0') * n + 6;
+      if(!_suffix.isEmpty())
+      {
+        w += fm.width(QString(" ")) + fm.width(_suffix);
+      }
+      return QSize(w, h);
+      }
+
+QSize DoubleLabel::minimumSizeHint() const
+{
+  return sizeHint();
+}