1 files changed, 81 insertions, 0 deletions
diff --git a/src/gui/widgets/HSpinBox.cpp b/src/gui/widgets/HSpinBox.cpp
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+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rosegarden
+    A MIDI and audio sequencer and musical notation editor.
+ 
+    This program is Copyright 2000-2008
+        Guillaume Laurent   <[email protected]>,
+        Chris Cannam        <[email protected]>,
+        Richard Bown        <[email protected]>
+ 
+    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
+    Bown to claim authorship of this work have been asserted.
+ 
+    Other copyrights also apply to some parts of this work.  Please
+    see the AUTHORS file and individual file headers for details.
+ 
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+
+#include "HSpinBox.h"
+
+#include <qstring.h>
+#include <cmath>
+#include <algorithm>
+
+namespace Rosegarden
+{
+
+QString HSpinBox::mapValueToText(int j)
+{
+    QString str;
+    str.sprintf(m_format, float(j) / m_scaleFactor);
+    return str;
+}
+
+int HSpinBox::mapTextToValue( bool* ok )
+{
+    *ok = true;
+    float f = atof(text());
+    return int(f * m_scaleFactor);
+}
+  
+HSpinBox::HSpinBox( int minV, int maxV, int step, QWidget* parent,
+              double bottom, double top, int decimals, float initialValue)
+      : QSpinBox(minV,maxV,step,parent)
+{
+    setValidator(new QDoubleValidator(bottom,top,decimals,this));
+    initialize(decimals);
+    setValuef(initialValue);
+}
+
+  //constructor with default settings
+HSpinBox::HSpinBox( QWidget* parent,  float initialValue, int step, 
+              double bottom, double top, int decimals,
+              const QObject* recv, const char* mem)
+      : QSpinBox((int)(bottom*pow(10.0, decimals)), 
+                 (int)(top*pow(10.0, decimals)), step, parent)
+{
+    setValidator(new QDoubleValidator(bottom,top,decimals,this));
+    initialize(decimals);
+    setValuef(initialValue);
+    if (recv != NULL && mem != NULL)
+      QObject::connect(this, SIGNAL(valueChanged(int)), recv, mem);
+}
+  
+float HSpinBox::valuef() { return float(value()) / m_scaleFactor; }
+void HSpinBox::setValuef(float v) { setValue(static_cast<int>(v * m_scaleFactor)); }
+
+void HSpinBox::initialize(int digits) {
+    m_scaleFactor = pow(10.0, digits);
+    sprintf(m_format, "%c%1i.%1if", '%', digits+3, digits);
+}
+        
+        
+}