Added AWL files

1 files changed, 88 insertions, 0 deletions

diff --git a/muse2/awl/tempoedit.cpp b/muse2/awl/tempoedit.cpp
new file mode 100644
index 00000000..d7dbac81
--- /dev/null
+++ b/muse2/awl/tempoedit.cpp
@@ -0,0 +1,88 @@
+//=============================================================================
+//  Awl
+//  Audio Widget Library
+//  $Id:$
+//
+//  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 "tempoedit.h"
+
+namespace Awl {
+
+//---------------------------------------------------------
+//   TempoEdit
+//---------------------------------------------------------
+
+TempoEdit::TempoEdit(QWidget* parent)
+   : QDoubleSpinBox(parent)
+      {
+      curVal = -1.0;
+      setSingleStep(1.0);
+      setRange(30.0, 600.0);
+      connect(this, SIGNAL(valueChanged(double)), SLOT(newValue(double)));
+      }
+
+//---------------------------------------------------------
+//   sizeHint
+//---------------------------------------------------------
+
+QSize TempoEdit::sizeHint() const
+      {
+      QFontMetrics fm(font());
+      int fw = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
+      int h  = fm.height() + fw * 2;
+      int w  = 2 + fm.width(QString("000.00")) +  fw * 4 + 30;
+      return QSize(w, h).expandedTo(QApplication::globalStrut());
+      }
+
+//---------------------------------------------------------
+//   newValue
+//---------------------------------------------------------
+
+void TempoEdit::newValue(double val)
+      {
+	if (val != curVal) {
+      	curVal = val;
+            emit tempoChanged(tempo());
+            }
+      }
+
+//---------------------------------------------------------
+//   setTempo
+//---------------------------------------------------------
+
+void TempoEdit::setTempo(int val)
+      {
+      double d = 60000000.0/double(val);
+      if (d != curVal) {
+      	curVal = d;
+        	blockSignals(true);
+      	setValue(d);
+        	blockSignals(false);
+         	}
+      }
+
+//---------------------------------------------------------
+//   tempo
+//---------------------------------------------------------
+
+int TempoEdit::tempo() const
+      {
+	return lrint(60000000.0/value());
+      }
+
+}
+