Remove useless 'Select' button in GUI => replace by ESC key binding => more space in GUI

gui/cadbiom_gui/gt_gui/charter.py

@@ -122,6 +122,8 @@ class Charter(object):
         self.my_accelerators = gtk.AccelGroup()
         self.main_window.add_accel_group(self.my_accelerators)
 
+        self.main_window.connect('key_press_event', self.on_key_pressed)
+
         # menu bar
         menu_bar = self.wtree.get_widget("menubar1")
         menu_bar.set_size_request(0, 25)
@@ -261,9 +263,9 @@ class Charter(object):
         self.button_handlers = dict()
         c_box = self.wtree.get_widget("controler_box")
 
-        but = gtk.Button(label="Select")
-        c_box.add(but)
-        self.button_handlers["Select"] = (but, -1)
+        #but = gtk.Button(label="Select")
+        #c_box.add(but)
+        #self.button_handlers["Select"] = (but, -1)
 
         but = gtk.Button(label="InputNode F1")
         self.add_accelerator(but, "F1")
@@ -324,10 +326,10 @@ class Charter(object):
         Connect the buttons to the controler of the graphic view
         Remember for each button the handler
         """
-        (but, bhan) = self.button_handlers["Select"]
-        bhan = but.connect("clicked",
-                         self.current_edit_mvc.controler.set_action_select)
-        self.button_handlers["Select"] = (but, bhan)
+        #(but, bhan) = self.button_handlers["Select"]
+        #bhan = but.connect("clicked",
+        #                 self.current_edit_mvc.controler.set_action_select)
+        #self.button_handlers["Select"] = (but, bhan)
 
         (but, bhan) = self.button_handlers["InputNode"]
         bhan = but.connect("clicked",
@@ -395,6 +397,16 @@ class Charter(object):
         # image.set_from_file(template)
         widget.set_image(image)
 
+    @check_curent_model
+    def on_key_pressed(self, widget, event):
+        """On ESC key_press_event, send select event.
+        i.e: deselect any Node previously selected.
+        => allow the move of elements on the graph.
+        """
+        keyval_name = gtk.gdk.keyval_name(event.keyval)
+        if keyval_name == 'Escape':
+            self.current_edit_mvc.controler.set_action_select(None)
+
     def add_accelerator(self, widget, accelerator, signal="activate"):
         """Adds a keyboard shortcut"""
         if accelerator is not None: