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configs/apps/gladevcp/by-widget/radio.py

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+'''
+    gladevcp radiobutton example
+    lifted from http://old.nabble.com/glade-and-radio-buttons.-td28793060.html
+
+    Michael Haberler 12/2010
+'''
+
+import gi
+gi.require_version('Gtk', '3.0')
+from gi.repository import Gtk
+from gi.repository import Gdk
+from gi.repository import GObject
+from gi.repository import Pango
+
+debug = 0
+
+class HandlerClass:
+
+    def print_radiobutton_state(self, widget):
+        if widget.get_active():
+            state = 'active'
+            if self.builder.get_object('showoutput_btn').get_active():
+                self.set_color_label(widget.get_label())
+            else:
+                self.color_lbl.set_label('Unknown')
+
+        else:
+            state = 'inactive'
+        print('   %s button toggled - now %s ' % ( widget.get_label(), state))
+
+    def on_red_rbtn_toggled(self, widget, data=None):
+        print('on_red_rbtn_toggled')
+        self.print_radiobutton_state(widget)
+
+    def on_blue_rbtn_toggled(self, widget, data=None):
+        print('on_blue_rbtn_toggled')
+        self.print_radiobutton_state(widget)
+
+    def on_green_rbtn_toggled(self, widget, data=None):
+        print('on_green_rbtn_toggled')
+        self.print_radiobutton_state(widget)
+
+    def on_yellow_rbtn_toggled(self, widget, data=None):
+        print('on_yellow_rbtn_toggled')
+        self.print_radiobutton_state(widget)
+
+    def on_showoutput_btn_toggled(self, widget, data=None):
+        if widget.get_active():
+            self.color_lbl.set_sensitive(True)
+        else:
+            self.color_lbl.set_sensitive(False)
+
+    def set_color_label(self, color):
+        self.color_lbl.set_label(color)
+        mycolor = self.color_lookup[color.lower()]
+        self.color_lbl.modify_fg(Gtk.StateFlags.NORMAL, mycolor)
+
+    def on_destroy(self,obj,data=None):
+        print("on_destroy")
+        self.halcomp.exit() # avoid lingering HAL component
+        Gtk.main_quit()
+
+    def __init__(self, halcomp,builder,useropts):
+        self.halcomp = halcomp
+        self.builder = builder
+        self.useropts = useropts
+
+        self.window = self.builder.get_object('window1')
+        self.color_lbl = self.builder.get_object('color_lbl')
+
+        fontdesc = Pango.FontDescription("Sans 20")
+        self.color_lbl.modify_font(fontdesc)
+
+        self.color_lookup = {
+                                'red':       Gdk.color_parse('red'),
+                                'blue':     Gdk.color_parse('blue'),
+                                'green':    Gdk.color_parse('green'),
+                                'yellow':    Gdk.color_parse('yellow')
+                                }
+        self.on_showoutput_btn_toggled(self.builder.get_object('showoutput_btn'))
+
+def get_handlers(halcomp,builder,useropts):
+
+    global debug
+    for cmd in useropts:
+        exec(cmd, globals())
+
+    return [HandlerClass(halcomp,builder,useropts)]
+