Added a Double property object

[pulseview.git] / pv / prop / double.cpp

diff --git a/pv/prop/double.cpp b/pv/prop/double.cpp
new file mode 100644 (file)
index 0000000..fdd9a44
--- /dev/null
+++ b/pv/prop/double.cpp
@@ -0,0 +1,78 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * 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.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <assert.h>
+
+#include <QDoubleSpinBox>
+
+#include "double.h"
+
+using namespace std;
+using namespace boost;
+
+namespace pv {
+namespace prop {
+
+Double::Double(QString name,
+       int decimals,
+       QString suffix,
+       optional< pair<double, double> > range,
+       optional<double> step,
+       function<double ()> getter,
+       function<void (double)> setter) :
+       Property(name),
+       _decimals(decimals),
+       _suffix(suffix),
+       _range(range),
+       _step(step),
+       _getter(getter),
+       _setter(setter),
+       _spin_box(NULL)
+{
+}
+
+QWidget* Double::get_widget(QWidget *parent)
+{
+       if(_spin_box)
+               return _spin_box;
+
+       _spin_box = new QDoubleSpinBox(parent);
+       _spin_box->setDecimals(_decimals);
+       _spin_box->setSuffix(_suffix);
+       if(_range)
+               _spin_box->setRange(_range->first, _range->second);
+       if(_step)
+               _spin_box->setSingleStep(*_step);
+
+       return _spin_box;
+}
+
+void Double::commit()
+{
+       assert(_setter);
+
+       if(!_spin_box)
+               return;
+
+       _setter(_spin_box->value());
+}
+
+} // prop
+} // pv