[elbe-devel] [PATCH 05/14] Debianize - Radio buttons widget

[dion at linutronix.de]

From: Olivier Dion <dion at linutronix.de>

Radio buttons can be grouped either vertically (default) or
horizontally.  This is decided within the ctor with the policy
variable argument.

The calle should provides an enumeration type and a member of the
enumeration type to use by default.

Signed-off-by: Olivier Dion <dion at linutronix.de>
---
 elbepack/debianize/widgets/radio.py | 53 +++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 elbepack/debianize/widgets/radio.py

diff --git a/elbepack/debianize/widgets/radio.py b/elbepack/debianize/widgets/radio.py
new file mode 100644
index 00000000..2caccf39
--- /dev/null
+++ b/elbepack/debianize/widgets/radio.py
@@ -0,0 +1,53 @@
+# ELBE - Debian Based Embedded Rootfilesystem Builder
+# Copyright (c) 2019 Olivier Dion <dion at linutronix.de>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+
+from enum import IntEnum
+
+from urwid import (
+    LineBox,
+    RadioButton,
+    Text
+)
+
+from elbepack.debianize.widgets.grid import Grid
+
+
+class RadioPolicy(IntEnum):
+    HORIZONTAL = 0
+    VERTICAL   = 1
+
+
+class RadioGroup(Grid):
+    def __init__(self, title, enum_type, starting_value, policy=RadioPolicy.VERTICAL):
+        self.selected_value = starting_value
+        self.enum_type = enum_type
+
+        self.radio_group = []
+        for choice in enum_type:
+            RadioButton(self.radio_group,
+                        label=choice.name.capitalize(),
+                        state=choice is starting_value)
+
+        rows = [
+            [Text(("header", title))]
+        ]
+
+        if policy is RadioPolicy.VERTICAL:
+            for radio in self.radio_group:
+                rows.append([radio])
+        else:
+            col = []
+            for radio in self.radio_group:
+                col.append(radio)
+            rows.append(col)
+
+        super().__init__(rows)
+        self._w = LineBox(self._w)
+
+    def get_data(self):
+        for radio in self.radio_group:
+            if radio.state:
+                return self.enum_type[radio.label.upper()]
-- 
2.11.0