1 files changed, 71 insertions, 0 deletions
diff --git a/gr-qtgui/lib/qtgui_util.cc b/gr-qtgui/lib/qtgui_util.cc
new file mode 100644
index 000000000..87b90997a
--- /dev/null
+++ b/gr-qtgui/lib/qtgui_util.cc
@@ -0,0 +1,71 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2008,2009 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <qtgui_util.h>
+
+QwtPickerDblClickPointMachine::QwtPickerDblClickPointMachine()
+    : QwtPickerMachine ()
+{
+
+}
+
+QwtPickerDblClickPointMachine::~QwtPickerDblClickPointMachine()
+{
+
+}
+
+QwtPickerMachine::CommandList
+QwtPickerDblClickPointMachine::transition(const QwtEventPattern &eventPattern,
+					  const QEvent *e)
+{
+  QwtPickerMachine::CommandList cmdList;
+  switch(e->type()) {
+    case QEvent::MouseButtonDblClick:
+      if ( eventPattern.mouseMatch(QwtEventPattern::MouseSelect1,
+				   (const QMouseEvent *)e) ) {
+	cmdList += QwtPickerMachine::Begin;
+	cmdList += QwtPickerMachine::Append;
+	cmdList += QwtPickerMachine::End;
+      }
+      break;
+  default:
+    break;
+  }
+  return cmdList;
+}
+
+QwtDblClickPlotPicker::QwtDblClickPlotPicker(QwtPlotCanvas* canvas)
+  : QwtPlotPicker(canvas)
+{
+  setSelectionFlags(QwtPicker::PointSelection);
+}
+
+QwtDblClickPlotPicker::~QwtDblClickPlotPicker()
+{
+}
+
+QwtPickerMachine*
+QwtDblClickPlotPicker::stateMachine(int n) const
+{
+  return new QwtPickerDblClickPointMachine;
+}
+