1 files changed, 144 insertions, 0 deletions
diff --git a/muse_qt4_evolution/muse/widgets/doublelabel.cpp b/muse_qt4_evolution/muse/widgets/doublelabel.cpp
new file mode 100644
index 00000000..4026800b
--- /dev/null
+++ b/muse_qt4_evolution/muse/widgets/doublelabel.cpp
@@ -0,0 +1,144 @@
+//=============================================================================
+//  MusE
+//  Linux Music Editor
+//  $Id:$
+//
+//  Copyright (C) 2002-2006 by Werner Schweer and others
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//=============================================================================
+
+#include "doublelabel.h"
+#include "utils.h"
+
+//---------------------------------------------------------
+//   DoubleLabel
+//---------------------------------------------------------
+
+DoubleLabel::DoubleLabel(QWidget* parent)
+   : Dentry(parent), _specialText("---")
+      {
+      min        = 0.0;
+      max        = 1.0;
+      _precision = 3;
+      setValue(0.0);
+      }
+
+DoubleLabel::DoubleLabel(double _val, double m, double mx, QWidget* parent)
+   : Dentry(parent), _specialText("---")
+      {
+      min = m;
+      max = mx;
+      _precision = 3;
+      setValue(_val);
+      }
+
+//---------------------------------------------------------
+//   setString
+//---------------------------------------------------------
+
+bool DoubleLabel::setString(double v)
+      {
+      QString s;
+      if (v < min || v > max) {
+            setText(_specialText);
+            return true;
+            }
+      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 + 1.0 < max) {
+            setValue(val + 1.0);
+            emit valueChanged(val, _id);
+            }
+      }
+
+//---------------------------------------------------------
+//   decValue
+//---------------------------------------------------------
+
+void DoubleLabel::decValue(double)
+      {
+      if (val - 1.0 > min) {
+            setValue(val - 1.0);
+            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 + 3;
+#if 0
+      double aval = fabs(val);
+      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;
+#endif
+      int w = fm.width(QString("-0.")) + fm.width('0') * n + 6;
+      return QSize(w, h);
+      }