tools: cleanup function names

tools/level_editor/level_editor.vala

@@ -190,20 +190,20 @@ public class LevelEditorApplication : Gtk.Application
 
 	private const GLib.ActionEntry[] action_entries_edit =
 	{
-		{ "menu-edit",          null,                        null, null   },
-		{ "undo",               on_undo,                     null, null   },
-		{ "redo",               on_redo,                     null, null   },
-		{ "duplicate",          on_duplicate,                null, null   },
-		{ "delete",             on_delete,                   null, null   },
-		{ "tool",               on_tool_changed,             "i",  "1"    }, // See: Crown.ToolType
-		{ "snap",               on_snap_mode_changed,        "i",  "0"    }, // See: Crown.SnapMode
-		{ "reference-system",   on_reference_system_changed, "i",  "0"    }, // See: Crown.ReferenceSystem
-		{ "snap-to-grid",       on_snap_to_grid,             null, "true" },
-		{ "menu-grid",          null,                        null, null   },
-		{ "grid-show",          on_show_grid,                null, "true" },
-		{ "grid-size",          on_grid_size,                "i",  "10"   }, // 10*meters.
-		{ "menu-rotation-snap", null,                        null, null   },
-		{ "rotation-snap-size", on_rotation_snap_size,       "i",  "15"   }
+		{ "menu-edit",          null,                  null, null   },
+		{ "undo",               on_undo,               null, null   },
+		{ "redo",               on_redo,               null, null   },
+		{ "duplicate",          on_duplicate,          null, null   },
+		{ "delete",             on_delete,             null, null   },
+		{ "tool",               on_tool,               "i",  "1"    }, // See: Crown.ToolType
+		{ "snap",               on_snap,               "i",  "0"    }, // See: Crown.SnapMode
+		{ "reference-system",   on_reference_system,   "i",  "0"    }, // See: Crown.ReferenceSystem
+		{ "snap-to-grid",       on_snap_to_grid,       null, "true" },
+		{ "menu-grid",          null,                  null, null   },
+		{ "grid-show",          on_show_grid,          null, "true" },
+		{ "grid-size",          on_grid_size,          "i",  "10"   }, // 10*meters.
+		{ "menu-rotation-snap", null,                  null, null   },
+		{ "rotation-snap-size", on_rotation_snap_size, "i",  "15"   }
 	};
 
 	private const GLib.ActionEntry[] action_entries_create =
@@ -1598,7 +1598,7 @@ public class LevelEditorApplication : Gtk.Application
 		start_resource_preview.begin(_resource_preview_view.window_id);
 	}
 
-	private void on_tool_changed(GLib.SimpleAction action, GLib.Variant? param)
+	private void on_tool(GLib.SimpleAction action, GLib.Variant? param)
 	{
 		ToolType type = (ToolType)param.get_int32();
 
@@ -1616,7 +1616,7 @@ public class LevelEditorApplication : Gtk.Application
 		action.set_state(param);
 	}
 
-	private void on_snap_mode_changed(GLib.SimpleAction action, GLib.Variant? param)
+	private void on_snap(GLib.SimpleAction action, GLib.Variant? param)
 	{
 		_snap_mode = (SnapMode)param.get_int32();
 
@@ -1625,7 +1625,7 @@ public class LevelEditorApplication : Gtk.Application
 		action.set_state(param);
 	}
 
-	private void on_reference_system_changed(GLib.SimpleAction action, GLib.Variant? param)
+	private void on_reference_system(GLib.SimpleAction action, GLib.Variant? param)
 	{
 		_reference_system = (ReferenceSystem)param.get_int32();