/// <summary>
/// Resets important values for the AnyGraph window.
/// </summary>
private void Reset()
{
_zoomArea = new Rect();
_zoom = 1.0f;
_zoomCoordsOrigin = Vector2.zero;
_nodeDragDistance = new Vector2();
_initMousePos = new Vector2();
_scrollPos = new Vector2();
_graphExtents = new Rect();
_lastGraphExtents = new Rect();
_dragStartPoint = new Vector2();
_dragType = SelectionDragType.None;
_toolbarRect = new Rect();
_optionWindowScrollPos = new Vector2();
_initialDragNodePosition = new Dictionary<Node, Rect>();
_allNodePos = new List<Rect>();
_cachedNodes = new List<IAnyGraphNode>();
_selected = null;
_linkingNode = false;
_nodeToLink = null;
_allNodes = new List<Node>();
_selection = new List<Node>();
_oldSelection = new List<Node>();
_needRearrange = false;
_rearrange = null;
_searchString = "";
// Call on the garbage collector to free up resources.
System.GC.Collect ();
}
private void OnGUI()
{
// Draw the grid and background.
Rect grapphRect = new Rect(0, 0, position.width - _toolbarRect.width, position.height);
GUI.Box (grapphRect, "", UnityEditor.Graphs.Styles.graphBackground);
DrawGrid (grapphRect);
// Draw the search bar.
Rect searchBarRect = new Rect(0, 0, position.width - _toolbarRect.width, 16);
DrawSearchBar (searchBarRect);
// Draw the Toolbar.
DrawToolbar();
_zoomArea = new Rect(0, searchBarRect.height, position.width - _toolbarRect.width, position.height - searchBarRect.height);
// If it isn't a repaint event, we can modify the node and links.
if(Event.current.type != EventType.Repaint){
// Update the currently selected object.
IAnyGraphable newSelected = null;
if(Selection.activeObject is IAnyGraphable){
newSelected = Selection.activeObject as IAnyGraphable;
}
else if(Selection.activeGameObject != null){
MonoBehaviour[] behaviours = Selection.activeGameObject.GetComponents<MonoBehaviour>();
for(int i = 0; i < behaviours.Length; i++){
if(behaviours[i] is IAnyGraphable){
newSelected = behaviours[i] as IAnyGraphable;
}
}
}
// If the selected object has changed, we need to regraph.
if(newSelected != _selected && newSelected != null){
Reset ();
_selected = newSelected;
GenerateCompleteNodeMap (_selected.Nodes);
}
if(_selected != null){
CheckNodes ();
CheckNodeLinks ();
// Move to the next rearrange iteration if it isn't null.
if(_rearrange != null && _passedRepaint){
_passedRepaint = false;
if(!_rearrange.MoveNext ()){
_rearrange = null;
}
}
// Start a new rearrange if the instance was null and the graph needs rearranging.
else if(_needRearrange){
_passedRepaint = false;
RearrangeTree(SelectedSettings.nodePlacementOffset.x, SelectedSettings.nodePlacementOffset.y);
}
}
}
else{
_passedRepaint = true;
}
HandleEvents ();
// if there is nothing to draw.
if(_selected == null){
ShowNotification (new GUIContent("No graphable object\nselected."));
return;
}
else{
RemoveNotification ();
}
// Set the main view rect by removing the search bar and toolbar from the window size.
Rect scrollViewRect = EditorZoomArea.Begin (_zoom, new Rect(0, 0, position.width - _toolbarRect.width, position.height - searchBarRect.height), searchBarRect.height);
scrollViewRect.y -= 21 + searchBarRect.height;
if(scrollViewRect.width > _graphExtents.width){
_scrollPos.x += (scrollViewRect.width - _graphExtents.width) / 2;
}
if(scrollViewRect.height > _graphExtents.height){
_scrollPos.y += (scrollViewRect.height - _graphExtents.height) / 2;
}
// Start graph scroll view.
_scrollPos = GUI.BeginScrollView (scrollViewRect, _scrollPos, _graphExtents, GUIStyle.none, GUIStyle.none);
// Get the current active path from the selected IAnyGraphable.
// Recursively set active nodes.
string[] activePath = _selected.ActiveNodePath;
if(activePath != null && activePath.Length > 0){
for(int i = 0; i < _allNodes.Count; i++){
if(_allNodes[i].isRoot && _allNodes[i].representedNode.Name == activePath[0]){
_allNodes[i].SetActiveRecursively (activePath, 0);
break;
}
}
}
DrawLinks ();
DrawNodes ();
DragSelection(new Rect(-5000f, -5000f, 10000f, 10000f));
UpdateScrollPosition ();
DragGraph();
GUI.EndScrollView();
EditorZoomArea.End ();
}
