1 files changed, 82 insertions, 0 deletions
diff --git a/gr-qtgui/apps/plot_form.py b/gr-qtgui/apps/plot_form.py
new file mode 100644
index 0000000000..2fb19d72b8
--- /dev/null
+++ b/gr-qtgui/apps/plot_form.py
@@ -0,0 +1,82 @@
+#!/usr/bin/env python
+#
+# Copyright 2012 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.
+#
+
+try:
+    from PyQt4 import QtGui, QtCore
+    import sip
+except ImportError:
+    print "Error: Program requires PyQt4."
+    sys.exit(1)
+
+class dialog_box(QtGui.QWidget):
+    def __init__(self, top_block, title=''):
+        QtGui.QWidget.__init__(self, None)
+
+        self._start = 0
+        self._end = 0
+
+        self.top_block = top_block
+        
+        self.setWindowTitle(title)
+
+        self.size_val = QtGui.QIntValidator(0, top_block._max_nsamps, self)
+
+        self.start_form = QtGui.QFormLayout()
+        self.start_edit = QtGui.QLineEdit(self)
+        self.start_edit.setMinimumWidth(100)
+        self.start_edit.setText(QtCore.QString("%1").arg(top_block._start))
+        self.start_edit.setValidator(self.size_val)
+        self.start_form.addRow("Start:", self.start_edit)
+        self.connect(self.start_edit, QtCore.SIGNAL("returnPressed()"),
+                     self.update_points)
+
+        end = top_block._start + top_block._nsamps
+        self.end_form = QtGui.QFormLayout()
+        self.end_edit = QtGui.QLineEdit(self)
+        self.end_edit.setMinimumWidth(100)
+        self.end_edit.setText(QtCore.QString("%1").arg(end))
+        self.end_edit.setValidator(self.size_val)
+        self.end_form.addRow("End:", self.end_edit)
+        self.connect(self.end_edit, QtCore.SIGNAL("returnPressed()"),
+                     self.update_points)
+
+        self.layout = QtGui.QGridLayout(self)
+        self.layout.addWidget(top_block.get_gui(), 0,0,1,2)
+        self.layout.addLayout(self.start_form, 1,0,1,1)
+        self.layout.addLayout(self.end_form, 1,1,1,1)
+
+        self.resize(800, 500)
+
+    def update_points(self):
+        newstart = self.start_edit.text().toUInt()[0]
+        newend = self.end_edit.text().toUInt()[0]
+        if(newstart != self._start or newend != self._end):
+            if(newend < newstart):
+                QtGui.QMessageBox.information(
+                    self, "Warning",
+                    "End sample is less than start sample.",
+                    QtGui.QMessageBox.Ok);
+            else:
+                newnsamps = newend - newstart
+                self.top_block.reset(newstart, newnsamps)
+        self._start = newstart
+        self._end = newend