grc: add select all action

gui/ActionHandler.py

@@ -143,6 +143,7 @@ class ActionHandler:
                 Actions.TOGGLE_SHOW_CODE_PREVIEW_TAB,
                 Actions.TOGGLE_SHOW_FLOWGRAPH_COMPLEXITY,
                 Actions.FLOW_GRAPH_OPEN_QSS_THEME,
+                Actions.SELECT_ALL,
             ):
                 action.set_sensitive(True)
                 if hasattr(action, 'load_from_preferences'):
@@ -162,6 +163,8 @@ class ActionHandler:
             pass #do nothing, update routines below
         elif action == Actions.NOTHING_SELECT:
             self.get_flow_graph().unselect()
+        elif action == Actions.SELECT_ALL:
+            self.get_flow_graph().select_all()
         ##################################################
         # Enable/Disable
         ##################################################

gui/Actions.py

@@ -226,6 +226,12 @@ FLOW_GRAPH_REDO = Action(
     keypresses=(gtk.keysyms.y, gtk.gdk.CONTROL_MASK),
 )
 NOTHING_SELECT = Action()
+SELECT_ALL = Action(
+    label='Select _All',
+    tooltip='Select all blocks and connections in the flow graph',
+    stock_id=gtk.STOCK_SELECT_ALL,
+    keypresses=(gtk.keysyms.a, gtk.gdk.CONTROL_MASK),
+)
 ELEMENT_SELECT = Action()
 ELEMENT_CREATE = Action()
 ELEMENT_DELETE = Action(

gui/Bars.py

@@ -82,6 +82,7 @@ MENU_BAR_LIST = (
         Actions.BLOCK_COPY,
         Actions.BLOCK_PASTE,
         Actions.ELEMENT_DELETE,
+        Actions.SELECT_ALL,
         None,
         Actions.BLOCK_ROTATE_CCW,
         Actions.BLOCK_ROTATE_CW,

gui/FlowGraph.py

@@ -49,7 +49,7 @@ class FlowGraph(Element):
         #important vars dealing with mouse event tracking
         self.element_moved = False
         self.mouse_pressed = False
-        self.unselect()
+        self._selected_elements = []
         self.press_coor = (0, 0)
         #selected ports
         self._old_selected_port = None
@@ -429,6 +429,10 @@ class FlowGraph(Element):
         """
         self._selected_elements = []
 
+    def select_all(self):
+        """Select all blocks in the flow graph"""
+        self._selected_elements = list(self.get_elements())
+
     def what_is_selected(self, coor, coor_m=None):
         """
         What is selected?