public virtual void DrawBlockGUI(Flowchart flowchart) { serializedObject.Update(); // Execute any queued cut, copy, paste, etc. operations from the prevous GUI update // We need to defer applying these operations until the following update because // the ReorderableList control emits GUI errors if you clear the list in the same frame // as drawing the control (e.g. select all and then delete) if (Event.current.type == EventType.Layout) { foreach (Action action in actionList) { if (action != null) { action(); } } actionList.Clear(); } Block block = target as Block; SerializedProperty commandListProperty = serializedObject.FindProperty("commandList"); if (block == flowchart.selectedBlock) { SerializedProperty descriptionProp = serializedObject.FindProperty("description"); EditorGUILayout.PropertyField(descriptionProp); DrawEventHandlerGUI(flowchart); block.UpdateIndentLevels(); // Make sure each command has a reference to its parent block foreach (Command command in block.commandList) { if (command == null) // Will be deleted from the list later on { continue; } command.parentBlock = block; } ReorderableListGUI.Title("Commands"); CommandListAdaptor adaptor = new CommandListAdaptor(commandListProperty, 0); adaptor.nodeRect = block.nodeRect; ReorderableListFlags flags = ReorderableListFlags.HideAddButton | ReorderableListFlags.HideRemoveButtons | ReorderableListFlags.DisableContextMenu; if (block.commandList.Count == 0) { EditorGUILayout.HelpBox("Press the + button below to add a command to the list.", MessageType.Info); } else { ReorderableListControl.DrawControlFromState(adaptor, null, flags); } // EventType.contextClick doesn't register since we moved the Block Editor to be inside // a GUI Area, no idea why. As a workaround we just check for right click instead. if (Event.current.type == EventType.MouseUp && Event.current.button == 1) { ShowContextMenu(); Event.current.Use(); } if (GUIUtility.keyboardControl == 0) //Only call keyboard shortcuts when not typing in a text field { Event e = Event.current; // Copy keyboard shortcut if (e.type == EventType.ValidateCommand && e.commandName == "Copy") { if (flowchart.selectedCommands.Count > 0) { e.Use(); } } if (e.type == EventType.ExecuteCommand && e.commandName == "Copy") { actionList.Add(Copy); e.Use(); } // Cut keyboard shortcut if (e.type == EventType.ValidateCommand && e.commandName == "Cut") { if (flowchart.selectedCommands.Count > 0) { e.Use(); } } if (e.type == EventType.ExecuteCommand && e.commandName == "Cut") { actionList.Add(Cut); e.Use(); } // Paste keyboard shortcut if (e.type == EventType.ValidateCommand && e.commandName == "Paste") { CommandCopyBuffer commandCopyBuffer = CommandCopyBuffer.GetInstance(); if (commandCopyBuffer.HasCommands()) { e.Use(); } } if (e.type == EventType.ExecuteCommand && e.commandName == "Paste") { actionList.Add(Paste); e.Use(); } // Duplicate keyboard shortcut if (e.type == EventType.ValidateCommand && e.commandName == "Duplicate") { if (flowchart.selectedCommands.Count > 0) { e.Use(); } } if (e.type == EventType.ExecuteCommand && e.commandName == "Duplicate") { actionList.Add(Copy); actionList.Add(Paste); e.Use(); } // Delete keyboard shortcut if (e.type == EventType.ValidateCommand && e.commandName == "Delete") { if (flowchart.selectedCommands.Count > 0) { e.Use(); } } if (e.type == EventType.ExecuteCommand && e.commandName == "Delete") { actionList.Add(Delete); e.Use(); } // SelectAll keyboard shortcut if (e.type == EventType.ValidateCommand && e.commandName == "SelectAll") { e.Use(); } if (e.type == EventType.ExecuteCommand && e.commandName == "SelectAll") { actionList.Add(SelectAll); e.Use(); } } } // Remove any null entries in the command list. // This can happen when a command class is deleted or renamed. for (int i = commandListProperty.arraySize - 1; i >= 0; --i) { SerializedProperty commandProperty = commandListProperty.GetArrayElementAtIndex(i); if (commandProperty.objectReferenceValue == null) { commandListProperty.DeleteArrayElementAtIndex(i); } } serializedObject.ApplyModifiedProperties(); }