[EventHandlerAttribute(EventType.MouseDown, 0)] // One of the highest priorities after node selection
private static void HandleContextClicks(NodeEditorInputInfo inputInfo)
{
if (Event.current.button == 1)
{ // Handle context clicks on Node and canvas
NodeEditorState state = inputInfo.editorState;
GenericMenu contextMenu = new GenericMenu();
if (inputInfo.editorState.focusedNode != null) // Node Context Click
{
if (!state.selectedNodes.Contains(state.focusedNode)) //&& state.focusedNode != state.selectedNode)
{
state.selectedNodes.Clear();
state.selectedNodes.Add(state.focusedNode);
state.selectedNode = state.focusedNode;
}
FillContextMenu(inputInfo, contextMenu, ContextType.Node);
}
else // Editor Context Click
{
FillContextMenu(inputInfo, contextMenu, ContextType.Canvas);
}
contextMenu.Show(inputInfo.inputPos);
Event.current.Use();
}
}
public static void ShowContextMenu(NodeEditorInputInfo inputInfo)
{
GenericMenu contextMenu = new GenericMenu();
FillContextMenu(inputInfo, contextMenu, ContextType.Canvas);
contextMenu.Show(inputInfo.inputPos);
}
private static void HandleNodeDraggingEnd(NodeEditorInputInfo inputInfo)
{
if (inputInfo.editorState.dragUserID == "node")
{
Vector2 dragStart = inputInfo.editorState.dragObjectStart;
Vector2 dragEnd = inputInfo.editorState.EndDrag("node");
if (inputInfo.editorState.dragNode && inputInfo.editorState.selectedNode)
{
if ((dragStart - dragEnd).magnitude > 10)
{
inputInfo.editorState.selectedNode.position = dragEnd;
#if UNITY_EDITOR
// Important: Copy variables used within anonymous functions within same level (this if block) for correct serialization!
float prevX = dragStart.x, prevY = dragStart.y, newX = dragEnd.x, newY = dragEnd.y;
Node draggedNode = inputInfo.editorState.selectedNode;
UndoPro.UndoProManager.RecordOperation(
() => NodeEditorUndoActions.SetNodePosition(draggedNode, new Vector2(newX, newY)),
() => NodeEditorUndoActions.SetNodePosition(draggedNode, new Vector2(prevX, prevY)),
"Node Drag", true, false);
#endif
NodeEditorCallbacks.IssueOnMoveNode(inputInfo.editorState.selectedNode);
}
else
{
inputInfo.editorState.selectedNode.position = dragStart;
}
}
}
inputInfo.editorState.dragNode = false;
}
private static void HandleNodeDragging(NodeEditorInputInfo inputInfo)
{
NodeEditorState state = inputInfo.editorState;
if (state.dragNode)
{ // If conditions apply, drag the selected node, else disable dragging
if (state.selectedNode != null && inputInfo.editorState.dragUserID == "node")
{ // Apply new position for the dragged node
state.UpdateDrag("node", inputInfo.inputPos);
if ((state.dragObjectPos - state.dragObjectStart).magnitude > 10)
{
state.selectedNode.position = state.dragObjectPos;
}
else
{
state.selectedNode.position = state.dragObjectStart;
}
NodeEditor.RepaintClients();
}
else
{
state.dragNode = false;
}
}
}
private static void HandleNodeDragging(NodeEditorInputInfo inputInfo)
{
NodeEditorState state = inputInfo.editorState;
if (state.dragNode)
{ // If conditions apply, drag the selected node, else disable dragging
if (state.selectedNode != null && GUIUtility.hotControl == 0)
{ // Calculate new position for the dragged object
state.dragOffset = inputInfo.inputPos - state.dragStart;
Vector2 delta = (state.dragPos + state.dragOffset * state.zoom) - state.selectedNode.rect.position;
state.selectedNode.rect.position = state.dragPos + state.dragOffset * state.zoom;
if (inputInfo.inputEvent.alt)
{
Dictionary <Node, int> d = new Dictionary <Node, int>();
d[state.selectedNode] = 1;
MoveChildren(ref d, state.selectedNode, delta);
}
NodeEditorCallbacks.IssueOnMoveNode(state.selectedNode);
NodeEditor.RepaintClients();
}
else
{
state.dragNode = false;
}
}
}
[EventHandlerAttribute(EventType.MouseDown, -2)] // Absolute second to call!
private static void HandleSelecting(NodeEditorInputInfo inputInfo)
{
if (inputInfo.inputEvent.button == 0 && inputInfo.editorState.focusedNode != inputInfo.editorState.selectedNode)
{ // Select focussed Node
inputInfo.editorState.selectedNode = inputInfo.editorState.focusedNode;
#if UNITY_EDITOR
NodeEditorState state = inputInfo.editorState;
Node prevSelection = state.selectedNode, newSelection = state.focusedNode;
UndoPro.UndoProManager.RecordOperation(
() => NodeEditorUndoActions.SetNodeSelection(state, newSelection),
() => NodeEditorUndoActions.SetNodeSelection(state, prevSelection),
"Node Selection", false, true);
#endif
// Make sure previous controls get unfocussed later, but except if control is in newly selected node
unfocusControlsForState = inputInfo.editorState;
unfocusControlsHot = GUIUtility.hotControl;
unfocusControlsKeyboard = GUIUtility.keyboardControl;
}
#if UNITY_EDITOR
if (inputInfo.editorState.selectedNode != null)
{
UnityEditor.Selection.activeObject = inputInfo.editorState.selectedNode;
}
else if (UnityEditor.Selection.activeObject is Node)
{
UnityEditor.Selection.activeObject = inputInfo.editorState.canvas;
}
#endif
}
private static void KB_MoveNode(NodeEditorInputInfo inputInfo)
{
NodeEditorState state = inputInfo.editorState;
if (state.selectedNode != null)
{
Vector2 pos = state.selectedNode.rect.position;
int shiftAmount = inputInfo.inputEvent.shift? 50 : 10;
if (inputInfo.inputEvent.keyCode == KeyCode.RightArrow)
{
pos = new Vector2(pos.x + shiftAmount, pos.y);
}
else if (inputInfo.inputEvent.keyCode == KeyCode.LeftArrow)
{
pos = new Vector2(pos.x - shiftAmount, pos.y);
}
else if (inputInfo.inputEvent.keyCode == KeyCode.DownArrow)
{
pos = new Vector2(pos.x, pos.y + shiftAmount);
}
else if (inputInfo.inputEvent.keyCode == KeyCode.UpArrow)
{
pos = new Vector2(pos.x, pos.y - shiftAmount);
}
state.selectedNode.rect.position = pos;
inputInfo.inputEvent.Use();
}
NodeEditor.RepaintClients();
}
[EventHandlerAttribute(EventType.MouseDown, -2)] // Absolute second to call!
private static void HandleSelecting(NodeEditorInputInfo inputInfo)
{
NodeEditorState state = inputInfo.editorState;
if (inputInfo.inputEvent.button == 0 && state.focusedNode != null)
{
// Select focussed Node
unfocusControlsForState = state;
if (!NodeEditor.CheckNodeIsSelected(state.focusedNode))
{
state.selectedNodes.Clear();
state.selectedNodes.Add(state.focusedNode);
}
NodeEditor.RepaintClients();
}
#if UNITY_EDITOR
if (state.selectedNodes.Count > 0 && state.focusedNode != null)
{
UnityEditor.Selection.activeObject = state.selectedNodes[0];
}
else if (state.focusedNode == null)
{
state.selectedNodes.Clear();
UnityEditor.Selection.activeObject = state.canvas;
}
#endif
}
private static void CallEventHandlers(NodeEditorInputInfo inputInfo, bool late)
{
object[] args = new object[1]
{
inputInfo
};
foreach (KeyValuePair <EventHandlerAttribute, Delegate> eventHandler in eventHandlers)
{
if (eventHandler.Key.handledEvent.HasValue)
{
EventType?handledEvent = eventHandler.Key.handledEvent;
if (handledEvent.GetValueOrDefault() != inputInfo.inputEvent.type || !handledEvent.HasValue)
{
continue;
}
}
if ((!late) ? (eventHandler.Key.priority < 100) : (eventHandler.Key.priority >= 100))
{
eventHandler.Value.DynamicInvoke(args);
if (inputInfo.inputEvent.type == EventType.Used)
{
break;
}
}
}
}
[EventHandlerAttribute(EventType.MouseDown, 0)] // One of the highest priorities after node selection
private static void HandleContextClicks(NodeEditorInputInfo inputInfo)
{
if (Event.current.button == 1)
{ // Handle context clicks on Node and canvas
GenericMenu contextMenu = new GenericMenu();
if (inputInfo.editorState.focusedConnectionKnob != null &&
inputInfo.editorState.focusedNode.GetType() == typeof(StateNode))
{
FillContextMenu(inputInfo, contextMenu, ContextType.StateConnectKnob);
}
else if (inputInfo.editorState.focusedNode != null &&
inputInfo.editorState.focusedNode.GetType() == typeof(StateNode))
{
FillContextMenu(inputInfo, contextMenu, ContextType.StateNode);
}
else if (inputInfo.editorState.focusedNode != null) // Node Context Click
{
FillContextMenu(inputInfo, contextMenu, ContextType.Node);
}
else // Editor Context Click
{
FillContextMenu(inputInfo, contextMenu, ContextType.Canvas);
}
contextMenu.ShowAsContext();
Event.current.Use();
}
}
private static void KB_MoveNode(NodeEditorInputInfo inputInfo)
{
NodeEditorState editorState = inputInfo.editorState;
if ((UnityEngine.Object)editorState.selectedNode != (UnityEngine.Object)null)
{
Vector2 position = editorState.selectedNode.rect.position;
int num = 0;
num = ((!inputInfo.inputEvent.shift) ? 5 : 10);
if (inputInfo.inputEvent.keyCode == KeyCode.RightArrow)
{
position = new Vector2(position.x + (float)num, position.y);
}
else if (inputInfo.inputEvent.keyCode == KeyCode.LeftArrow)
{
position = new Vector2(position.x - (float)num, position.y);
}
else if (inputInfo.inputEvent.keyCode == KeyCode.DownArrow)
{
position = new Vector2(position.x, position.y + (float)num);
}
else if (inputInfo.inputEvent.keyCode == KeyCode.UpArrow)
{
position = new Vector2(position.x, position.y - (float)num);
}
editorState.selectedNode.rect.position = position;
inputInfo.inputEvent.Use();
}
NodeEditor.RepaintClients();
}
[EventHandlerAttribute(-4)] // Absolute first to call!
private static void HandleFocussing(NodeEditorInputInfo inputInfo)
{
NodeEditorState state = inputInfo.editorState;
//必须放在这个地方，因为需要处理连线问题，如果不每次刷新就检测，就无法处理
state.focusedNode = NodeEditor.NodeAtPosition(NodeEditor.ScreenToCanvasSpace(inputInfo.inputPos), out state.focusedConnectionKnob);
}
private static void HandleConnectionDrawing(NodeEditorInputInfo inputInfo)
{ // TODO: Revamp Multi-Multi knob editing
NodeEditorState state = inputInfo.editorState;
if (inputInfo.inputEvent.button == 0 && state.focusedConnectionKnob != null)
{ // Left-Clicked on a ConnectionKnob, handle editing
if (state.focusedConnectionKnob.maxConnectionCount == ConnectionCount.Multi)
{ // Knob with multiple connections clicked -> Draw new connection from it
state.connectKnob = state.focusedConnectionKnob;
inputInfo.inputEvent.Use();
}
else if (state.focusedConnectionKnob.maxConnectionCount == ConnectionCount.Single)
{ // Knob with single connection clicked
if (state.focusedConnectionKnob.connected())
{ // Loose and edit existing connection from it
state.connectKnob = state.focusedConnectionKnob.connection(0);
state.focusedConnectionKnob.RemoveConnection(state.connectKnob);
inputInfo.inputEvent.Use();
}
else
{ // Not connected, draw a new connection from it
state.connectKnob = state.focusedConnectionKnob;
inputInfo.inputEvent.Use();
}
}
}
}
private static void CallHotkeys(NodeEditorInputInfo inputInfo, KeyCode keyCode, EventModifiers mods)
{
object[] args = new object[1]
{
inputInfo
};
foreach (KeyValuePair <HotkeyAttribute, Delegate> hotkeyHandler in hotkeyHandlers)
{
if (hotkeyHandler.Key.handledHotKey == keyCode && (!hotkeyHandler.Key.modifiers.HasValue || hotkeyHandler.Key.modifiers == mods))
{
if (hotkeyHandler.Key.limitingEventType.HasValue)
{
EventType?limitingEventType = hotkeyHandler.Key.limitingEventType;
if (limitingEventType.GetValueOrDefault() != inputInfo.inputEvent.type || !limitingEventType.HasValue)
{
continue;
}
}
hotkeyHandler.Value.DynamicInvoke(args);
if (inputInfo.inputEvent.type == EventType.Used)
{
break;
}
}
}
}
[EventHandlerAttribute(EventType.MouseDown, -2)] // Absolute second to call!
private static void HandleSelecting(NodeEditorInputInfo inputInfo)
{
ResetHotControlId();
NodeEditorState state = inputInfo.editorState;
if (inputInfo.inputEvent.button == 0 && state.focusedNode != null)
{
// Select focussed Node
if (!NodeEditor.CheckNodeIsSelected(state.focusedNode))
{
state.selectedNodes.Clear();
state.selectedNodes.Add(state.focusedNode);
}
}
if (state.selectedNodes.Count > 0 && state.focusedNode != null)
{
UnityEditor.Selection.activeObject = state.selectedNodes[0];
}
else if (state.focusedNode == null)
{
state.selectedNodes.Clear();
UnityEditor.Selection.activeObject = state.canvas;
}
}
[EventHandlerAttribute(EventType.MouseDown, -1)] // One of the highest priorities after node selection
private static void HandleContextClicks(NodeEditorInputInfo inputInfo)
{
if (Event.current.button == 1)
{
// Handle context clicks on Node and canvas
if (inputInfo.editorState.focusedNode != null) // Node Context Click
{
if (!NodeEditor.CheckNodeIsSelected(inputInfo.editorState.focusedNode))
{
inputInfo.editorState.selectedNodes.Clear();
inputInfo.editorState.selectedNodes.Add(inputInfo.editorState.focusedNode);
}
GenericMenu contextMenu = new GenericMenu();
FillContextMenu(inputInfo, contextMenu, ContextType.Node);
contextMenu.ShowAsContext();
Event.current.Use();
}
else // Editor Context Click
{
inputInfo.editorState.selectedNodes.Clear();
CreateNodesAdvancedDropdown.ShowDropdown(new Rect(inputInfo.inputPos, Vector2.zero));
Event.current.Use();
}
}
}
private static void HandleConnectionDrawing(NodeEditorInputInfo inputInfo)
{
NodeEditorState state = inputInfo.editorState;
if (inputInfo.inputEvent.button == 0 && state.focusedConnectionKnob != null)
{
// Left-Clicked on a ConnectionKnob, handle editing
if (state.focusedConnectionKnob.direction == Direction.Out)
{
// Knob with multiple connections clicked -> Draw new connection from it
state.connectKnob = state.focusedConnectionKnob;
CreateConnection = true;
inputInfo.inputEvent.Use();
}
else if (state.focusedConnectionKnob.direction == Direction.In)
{
// Knob with single connection clicked
if (state.focusedConnectionKnob.connected())
{
// Loose and edit existing connection from it
state.connectKnob = state.focusedConnectionKnob.connection(0);
state.focusedConnectionKnob.RemoveConnection(state.connectKnob);
CreateConnection = false;
inputInfo.inputEvent.Use();
}
else
{
// Not connected, draw a new connection from it
state.connectKnob = state.focusedConnectionKnob;
CreateConnection = true;
inputInfo.inputEvent.Use();
}
}
}
}
private static void HandleNodeDragging(NodeEditorInputInfo inputInfo)
{
NodeEditorState state = inputInfo.editorState;
if (state.dragNode)
{
// If conditions apply, drag the selected node, else disable dragging
if (state.selectedNodes.Count > 0 && inputInfo.editorState.dragUserID == "node")
{
// Apply new position for the dragged node
Vector2 newOffset = state.UpdateDrag("node", inputInfo.inputPos);
foreach (var node in state.selectedNodes)
{
node.position += newOffset;
}
NodeEditor.RepaintClients();
}
else
{
state.dragNode = false;
}
Event.current.Use();
}
}
[EventHandlerAttribute(EventType.MouseDown, -2)] // Absolute second to call!
private static void HandleSelecting(NodeEditorInputInfo inputInfo)
{
if (inputInfo.inputEvent.button == 0 && inputInfo.editorState.focusedNode != inputInfo.editorState.selectedNode)
{ // Select focussed Node
unfocusControlsForState = inputInfo.editorState;
inputInfo.editorState.selectedNode = inputInfo.editorState.focusedNode;
#if UNITY_EDITOR
NodeEditorState state = inputInfo.editorState;
Node prevSelection = state.selectedNode, newSelection = state.focusedNode;
UndoPro.UndoProManager.RecordOperation(
() => NodeEditorUndoActions.SetNodeSelection(state, newSelection),
() => NodeEditorUndoActions.SetNodeSelection(state, prevSelection),
"Node Selection", false, true);
#endif
}
#if UNITY_EDITOR
if (inputInfo.editorState.selectedNode != null)
{
UnityEditor.Selection.activeObject = inputInfo.editorState.selectedNode;
}
else if (UnityEditor.Selection.activeObject is Node)
{
UnityEditor.Selection.activeObject = inputInfo.editorState.canvas;
}
#endif
}
private static void HandleGroupDragging(NodeEditorInputInfo inputInfo)
{
NodeEditorState state = inputInfo.editorState;
NodeGroup active = state.activeGroup;
if (active != null)
{
// Handle dragging and resizing of active group
if (state.dragUserID != "group")
{
state.activeGroup = null;
state.resizeGroup = false;
return;
}
// Update drag operation
Vector2 dragChange = state.UpdateDrag("group", inputInfo.inputPos);
Vector2 newSizePos = state.dragObjectPos;
if (state.resizeGroup)
{
// Resizing -> Apply drag to selected borders while keeping a minimum size
// Note: Binary operator and !=0 checks of the flag is enabled, but not necessarily the only flag (in which case you would use ==)
Rect r = active.rect;
if ((NodeGroup.resizeDir & BorderSelection.Left) != 0)
{
active.rect.xMin = r.xMax - Math.Max(minGroupSize, r.xMax - newSizePos.x);
}
else if ((NodeGroup.resizeDir & BorderSelection.Right) != 0)
{
active.rect.xMax = r.xMin + Math.Max(minGroupSize, newSizePos.x - r.xMin);
}
if ((NodeGroup.resizeDir & BorderSelection.Top) != 0)
{
active.rect.yMin = r.yMax - Math.Max(minGroupSize, r.yMax - newSizePos.y);
}
else if ((NodeGroup.resizeDir & BorderSelection.Bottom) != 0)
{
active.rect.yMax = r.yMin + Math.Max(minGroupSize, newSizePos.y - r.yMin);
}
}
else
{
// Dragging -> Apply drag to body and pinned nodes
active.rect.position = newSizePos;
foreach (Node pinnedNode in active.pinnedNodes)
{
pinnedNode.position += dragChange;
}
foreach (NodeGroup pinnedGroup in active.pinnedGroups)
{
pinnedGroup.rect.position += dragChange;
}
}
inputInfo.inputEvent.Use();
NodeEditor.RepaintClients();
}
}
public static void HandleLateInputEvents(NodeEditorState state)
{
if (!shouldIgnoreInput(state))
{
NodeEditorInputInfo inputInfo = new NodeEditorInputInfo(state);
CallEventHandlers(inputInfo, true);
}
}
private static void HandleEndNavigating(NodeEditorInputInfo inputInfo)
{
if (GUIUtility.keyboardControl > 0)
{
return;
}
inputInfo.editorState.navigate = false;
}
private static void DeleteNode(NodeEditorInputInfo inputInfo)
{
if (inputInfo.editorState.focusedNode != null)
{
inputInfo.editorState.focusedNode.Delete();
inputInfo.inputEvent.Use();
}
}
private static void HandleZooming(NodeEditorInputInfo inputInfo)
{
if (inputInfo.editorState.canZoom)
{
inputInfo.editorState.zoom = (float)Math.Round(Math.Min(4.0, Math.Max(0.6, inputInfo.editorState.zoom + inputInfo.inputEvent.delta.y / 15)), 2);
NodeEditor.RepaintClients();
}
}
private static void HandleWindowPanningEnd(NodeEditorInputInfo inputInfo)
{
if (inputInfo.editorState.dragUserID == "window")
{
inputInfo.editorState.panOffset = inputInfo.editorState.EndDrag("window");
}
inputInfo.editorState.panWindow = false;
}
private static void HandleWindowSelectionEnd(NodeEditorInputInfo inputInfo)
{
if (inputInfo.editorState.boxSelecting)
{
inputInfo.editorState.boxSelecting = false;
NodeEditor.RepaintClients();
}
}
[EventHandlerAttribute(EventType.MouseDrag, -2)] // Absolute second to call!
private static void HandleDrag(NodeEditorInputInfo inputInfo)
{
//因为在编辑文本的时候我们不希望进行拖拽，所以吃掉事件
if (GUIUtility.hotControl != 0)
{
Event.current.Use();
}
}
public static void HandleInputEvents(NodeEditorState state)
{
if (!shouldIgnoreInput(state))
{
NodeEditorInputInfo inputInfo = new NodeEditorInputInfo(state);
CallEventHandlers(inputInfo, false);
CallHotkeys(inputInfo, Event.current.keyCode, Event.current.modifiers);
}
}
private static void HandleWindowSelection(NodeEditorInputInfo inputInfo)
{
NodeEditorState state = inputInfo.editorState;
if (state.boxSelecting)
{
NodeEditor.RepaintClients();
}
}
private static void HandleNodeConnectionContext(NodeEditorInputInfo inputInfo)
{
NodeEditorState state = inputInfo.editorState;
if (inputInfo.inputEvent.button == 2 && state.focusedConnectionKnob != null)
{ // Middle-Clicked on a ConnectionKnob, handle editing
Debug.Log("right clicked on a node connection: " + state.focusedConnectionKnob);
}
}