/// <summary>
/// Draws the Node Canvas on the screen in the rect specified by editorState without one-time wrappers like GUISkin and OverlayGUI. Made for nested Canvases (WIP)
/// </summary>
public static void DrawSubCanvas(NodeCanvas nodeCanvas, NodeEditorState editorState)
{
if (!editorState.drawing)
{
return;
}
// Store and restore later on in case of this being a nested Canvas
NodeCanvas prevNodeCanvas = curNodeCanvas;
NodeEditorState prevEditorState = curEditorState;
curNodeCanvas = nodeCanvas;
curEditorState = editorState;
if (Event.current.type == EventType.Repaint)
{ // Draw Background when Repainting
GUI.BeginClip(curEditorState.canvasRect);
float width = NodeEditorGUI.Background.width / curEditorState.zoom;
float height = NodeEditorGUI.Background.height / curEditorState.zoom;
Vector2 offset = curEditorState.zoomPos + curEditorState.panOffset / curEditorState.zoom;
offset = new Vector2(offset.x % width - width, offset.y % height - height);
int tileX = Mathf.CeilToInt((curEditorState.canvasRect.width + (width - offset.x)) / width);
int tileY = Mathf.CeilToInt((curEditorState.canvasRect.height + (height - offset.y)) / height);
for (int x = 0; x < tileX; x++)
{
for (int y = 0; y < tileY; y++)
{
GUI.DrawTexture(new Rect(offset.x + x * width,
offset.y + y * height,
width, height),
NodeEditorGUI.Background);
}
}
GUI.EndClip();
}
// Check the inputs
InputEvents();
if (Event.current.type != EventType.Layout)
{
curEditorState.ignoreInput = new List <Rect> ();
}
// We're using a custom scale method, as default one is messing up clipping rect
Rect canvasRect = curEditorState.canvasRect;
curEditorState.zoomPanAdjust = GUIScaleUtility.BeginScale(ref canvasRect, curEditorState.zoomPos, curEditorState.zoom, false);
//GUILayout.Label ("Scaling is Great!"); -> TODO: Test by changing the last bool parameter
// ---- BEGIN SCALE ----
// Some features which require drawing (zoomed)
if (curEditorState.navigate)
{ // Draw a curve to the origin/active node for orientation purposes
RTEditorGUI.DrawLine((curEditorState.selectedNode != null? curEditorState.selectedNode.rect.center : curEditorState.panOffset) + curEditorState.zoomPanAdjust,
ScreenToGUIPos(mousePos) + curEditorState.zoomPos * curEditorState.zoom,
Color.black, null, 3);
RepaintClients();
}
if (curEditorState.connectOutput != null)
{ // Draw the currently drawn connection
NodeOutput output = curEditorState.connectOutput;
Vector2 startPos = output.GetGUIKnob().center;
Vector2 endPos = ScreenToGUIPos(mousePos) + curEditorState.zoomPos * curEditorState.zoom;
Vector2 endDir = output.GetDirection();
NodeEditorGUI.DrawConnection(startPos, endDir, endPos, NodeEditorGUI.GetSecondConnectionVector(startPos, endPos, endDir), ConnectionTypes.GetTypeData(output.type).col);
RepaintClients();
}
if (curEditorState.makeTransition != null)
{ // Draw the currently made transition
RTEditorGUI.DrawLine(curEditorState.makeTransition.rect.center + curEditorState.zoomPanAdjust,
ScreenToGUIPos(mousePos) + curEditorState.zoomPos * curEditorState.zoom,
Color.grey, null, 3);
RepaintClients();
}
// Push the active node at the bottom of the draw order.
if (Event.current.type == EventType.Layout && curEditorState.selectedNode != null)
{
curNodeCanvas.nodes.Remove(curEditorState.selectedNode);
curNodeCanvas.nodes.Add(curEditorState.selectedNode);
}
// Draw the transitions and connections. Has to be drawn before nodes as transitions originate from node centers
for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
{
Node node = curNodeCanvas.nodes [nodeCnt];
node.DrawTransitions();
node.DrawConnections();
}
// Draw the nodes
for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
{
Node node = curNodeCanvas.nodes [nodeCnt];
node.DrawNode();
if (Event.current.type == EventType.Repaint)
{
node.DrawKnobs();
}
}
// ---- END SCALE ----
// End scaling group
GUIScaleUtility.EndScale();
// Check events with less priority than node GUI controls
LateEvents();
curNodeCanvas = prevNodeCanvas;
curEditorState = prevEditorState;
}
