void DrawBranch(BranchNode branch)
{
//if node is a branch, draw children and widgets.
if (branch != null)
{
cursor.x += SPACING.x;
var top = branch.rect.yMax;
var bottom = branch.rect.yMax;
for (int i = 0; i < branch.Children.Count; i++)
{
var c = branch.Children[i];
if (c != null)
{
Draw(c, branch);
bottom = c.rect.center.y;
dropZones.Add(new DropZone(branch, c.rect, i));
if (i == branch.Children.Count - 1)
{
dropZones.Add(new DropZone(branch, c.rect, i + 1, true));
}
}
}
var left = branch.rect.x + (SPACING.x / 2);
ReactEditorUtility.DrawLine(new Vector2(left, top), new Vector3(left, bottom), Color.white);
cursor.x -= SPACING.x;
}
}
void Draw(BaseNode node, BaseNode parent)
{
if (node == null)
{
return;
}
var visible = IsVisible(node);
node.nodeParent = parent;
node.rect.y = cursor.y;
GUI.color = Color.white;
if (visible)
{
ReactEditorUtility.DrawBackground(node.rect, reactor.hotNode == node && dragNode == null ? style : GUI.skin.box);
}
node.rect = cursor;
if (visible)
{
if (node is Comment && reactor.hotNode != node)
{
var comment = node as Comment;
var oc = new GUIContent(comment.text);
//draw node contents
var size = EditorStyles.boldLabel.CalcSize(oc);
node.rect.width = size.x + 32;
node.rect.height = size.y * 2;
EditorGUI.HelpBox(node.rect, comment.text, MessageType.Info);
// GUI.Label(node.rect, oc, EditorStyles.boldLabel);
}
else
{
Texture icon = null;
icon = EditorGUIUtility.ObjectContent(null, node.GetWrappedType()).image;
if (node != root)
{
if (icon == null)
{
icon = GetIcon(node);
}
var oc = new GUIContent(node.ToString());
//draw node contents
var size = EditorStyles.boldLabel.CalcSize(oc);
oc.image = icon;
node.rect.width = size.x + 32;
GUI.Label(node.rect, oc, EditorStyles.boldLabel);
}
var focus = false;
if (focusFirstControl && reactor.hotNode == node)
{
focus = true;
focusFirstControl = false;
}
ReactFieldEditor.DrawFields(node, focus, reactor.hotNode == node);
}
}
var left = 0f;
if (node.nodeParent != null)
{
if (node.nodeParent is DecoratorNode)
{
left = node.nodeParent.rect.xMax;
}
else
{
left = node.nodeParent.rect.x + (SPACING.x / 2);
}
}
var top = node.rect.center.y;
var right = node.rect.x;
ReactEditorUtility.DrawLine(new Vector2(left, top), new Vector3(right, top), Color.white);
cursor.y += node.rect.height + SPACING.y;
if (visible)
{
DrawExecutionState(node);
}
DrawRoot(node as Root);
DrawBranch(node as BranchNode);
DrawDecorator(node as DecoratorNode);
viewRect.xMax = Mathf.Max(viewRect.xMax, node.rect.xMax + 32);
viewRect.yMax = Mathf.Max(viewRect.yMax, node.rect.yMax + 8);
}