1 files changed, 119 insertions, 0 deletions
diff --git a/gr-qtgui/python/qtgui/msgcheckbox.py b/gr-qtgui/python/qtgui/msgcheckbox.py
new file mode 100644
index 0000000000..8d2a52ae07
--- /dev/null
+++ b/gr-qtgui/python/qtgui/msgcheckbox.py
@@ -0,0 +1,119 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# Copyright 2020 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+#
+
+from PyQt5 import Qt
+from PyQt5.QtWidgets import QFrame, QVBoxLayout
+from PyQt5.QtCore import Qt as Qtc
+
+from gnuradio import gr
+import pmt
+
+class CheckBoxEx(Qt.QCheckBox):
+    def __init__(self, lbl, callback=None):
+        Qt.QCheckBox.__init__(self)
+        self.setText(lbl)
+        self.callback = callback
+
+        self.stateChanged.connect(self.onToggleClicked)
+
+    def onToggleClicked(self):
+        if self.callback is not None:
+            self.callback(super().isChecked())
+
+class MsgCheckBox(gr.sync_block, QFrame):
+    """
+   This block creates a variable checkbox. Leave the label blank to
+   use the variable id as the label. A checkbox selects between
+   two values of similar type, but will stay depressed until
+   clicked again. The variable will take on one value or the other
+   depending on whether the button is pressed or released.
+
+    This control will also produce a state message matching the
+    set values.
+    """
+    def __init__(self, callback, lbl, pressedReleasedDict, initPressed, alignment,
+                 valignment, outputmsgname='value'):
+        gr.sync_block.__init__(self, name="MsgCheckBox", in_sig=None, out_sig=None)
+        QFrame.__init__(self)
+
+        self.outputmsgname = outputmsgname
+        self.chkBox = CheckBoxEx(lbl, self.onToggleClicked)
+
+        layout = QVBoxLayout()
+
+        layout.addWidget(self.chkBox)
+
+        if alignment == 1:
+            halign = Qtc.AlignCenter
+        elif alignment == 2:
+            halign = Qtc.AlignLeft
+        else:
+            halign = Qtc.AlignRight
+
+        if valignment == 1:
+            valign = Qtc.AlignVCenter
+        elif valignment == 2:
+            valign = Qtc.AlignTop
+        else:
+            valign = Qtc.AlignBottom
+
+        layout.setAlignment(halign | valign)
+        self.setLayout(layout)
+
+        self.callback = callback
+        self.pressReleasedDict = pressedReleasedDict
+
+        self.message_port_register_out(pmt.intern("state"))
+
+        if initPressed:
+            self.chkctl.setChecked(True)
+
+        self.show()
+
+    def onToggleClicked(self, checked):
+        if self.chkBox.isChecked():
+            self.callback(self.pressReleasedDict['Pressed'])
+
+            if type(self.pressReleasedDict['Pressed']) == bool:
+                self.message_port_pub(pmt.intern("state"),
+                    pmt.cons(pmt.intern(self.outputmsgname),
+                    pmt.from_bool(self.pressReleasedDict['Pressed'])))
+            elif type(self.pressReleasedDict['Pressed']) == int:
+                self.message_port_pub(pmt.intern("state"),
+                    pmt.cons(pmt.intern(self.outputmsgname),
+                    pmt.from_long(self.pressReleasedDict['Pressed'])))
+            elif type(self.pressReleasedDict['Pressed']) == float:
+                self.message_port_pub(pmt.intern("state"),
+                    pmt.cons(pmt.intern(self.outputmsgname),
+                    pmt.from_float(self.pressReleasedDict['Pressed'])))
+            else:
+                self.message_port_pub(pmt.intern("state"),
+                    pmt.cons(pmt.intern(self.outputmsgname),
+                    pmt.intern(self.pressReleasedDict['Pressed'])))
+        else:
+            self.callback(self.pressReleasedDict['Released'])
+
+            if type(self.pressReleasedDict['Released']) == bool:
+                self.message_port_pub(pmt.intern("state"),
+                    pmt.cons(pmt.intern(self.outputmsgname),
+                    pmt.from_bool(self.pressReleasedDict['Released'])))
+            elif type(self.pressReleasedDict['Released']) == int:
+                self.message_port_pub(pmt.intern("state"),
+                    pmt.cons(pmt.intern(self.outputmsgname),
+                    pmt.from_long(self.pressReleasedDict['Released'])))
+            elif type(self.pressReleasedDict['Released']) == float:
+                self.message_port_pub(pmt.intern("state"),
+                    pmt.cons(pmt.intern(self.outputmsgname),
+                    pmt.from_float(self.pressReleasedDict['Released'])))
+            else:
+                self.message_port_pub(pmt.intern("state"),
+                    pmt.cons(pmt.intern(self.outputmsgname),
+                    pmt.intern(self.pressReleasedDict['Released'])))