Create CreateOutlineForPanelEditor.cs

unitycoder · web-flow · commit adda230bff56 · 2019-06-07T12:59:36.000+03:00
diff --git a/Assets/Scripts/Editor/ContextMenu/CreateOutlineForPanelEditor.cs b/Assets/Scripts/Editor/ContextMenu/CreateOutlineForPanelEditor.cs
@@ -0,0 +1,59 @@
+// Custom Contect menu for UI Image component (in WorldSpace UI canvas)
+// used for creating outline for panel (image) using LineRenderer
+
+using UnityEngine;
+using UnityEditor;
+using UnityEngine.UI;
+
+namespace UnityLibrary
+{
+    public class CreateOutlineForPanelEditor : MonoBehaviour
+    {
+        [MenuItem("CONTEXT/Image/Create Outline For Panel")]
+        static void DoubleMass(MenuCommand command)
+        {
+            // get reference
+            Image comp = (Image)command.context;
+            if (comp == null)
+            {
+                Debug.LogError("No Image component found..");
+                return;
+            }
+
+            // TODO check that its worlspace canvas
+
+            // get worldspace borders, FIXME get root canvas, instead of parent
+            var canvasRect = comp.transform.parent.GetComponent<Canvas>().GetComponent<RectTransform>();
+            Vector3[] corners = new Vector3[4];
+            canvasRect.GetWorldCorners(corners);
+
+            var line = comp.transform.GetComponent<LineRenderer>();
+            if (line == null)
+            {
+                Debug.LogError("Missing LineRenderer component");
+                return;
+            }
+
+            if (line.useWorldSpace == true)
+            {
+                Debug.LogWarning("LineRenderer has worlspace enabled, disabling it");
+                line.useWorldSpace = false;
+            }
+
+            // set line points
+            line.positionCount = corners.Length + 1;
+            line.SetPositions(corners);
+            // connect last and first
+            line.SetPosition(line.positionCount - 1, corners[0]);
+
+            // convert worldspace to localspace
+            for (int i = 0, len = line.positionCount; i < len; i++)
+            {
+                var worldPos = line.GetPosition(i);
+                var localPos = canvasRect.transform.InverseTransformPoint(worldPos);
+                line.SetPosition(i, localPos);
+            }
+
+        }
+    }
+}
