1 files changed, 39 insertions, 0 deletions
diff --git a/Assets/SampleUI/Scripts/ResizePanel.cs b/Assets/SampleUI/Scripts/ResizePanel.cs
new file mode 100755
index 0000000..0058bba
--- /dev/null
+++ b/Assets/SampleUI/Scripts/ResizePanel.cs
@@ -0,0 +1,39 @@
+using UnityEngine;
+using UnityEngine.UI;
+using UnityEngine.EventSystems;
+
+public class ResizePanel : MonoBehaviour, IPointerDownHandler, IDragHandler {
+	
+	public Vector2 minSize = new Vector2 (100, 100);
+	public Vector2 maxSize = new Vector2 (400, 400);
+	
+	private RectTransform panelRectTransform;
+	private Vector2 originalLocalPointerPosition;
+	private Vector2 originalSizeDelta;
+	
+	void Awake () {
+		panelRectTransform = transform.parent.GetComponent<RectTransform> ();
+	}
+	
+	public void OnPointerDown (PointerEventData data) {
+		originalSizeDelta = panelRectTransform.sizeDelta;
+		RectTransformUtility.ScreenPointToLocalPointInRectangle (panelRectTransform, data.position, data.pressEventCamera, out originalLocalPointerPosition);
+	}
+	
+	public void OnDrag (PointerEventData data) {
+		if (panelRectTransform == null)
+			return;
+		
+		Vector2 localPointerPosition;
+		RectTransformUtility.ScreenPointToLocalPointInRectangle (panelRectTransform, data.position, data.pressEventCamera, out localPointerPosition);
+		Vector3 offsetToOriginal = localPointerPosition - originalLocalPointerPosition;
+		
+		Vector2 sizeDelta = originalSizeDelta + new Vector2 (offsetToOriginal.x, -offsetToOriginal.y);
+		sizeDelta = new Vector2 (
+			Mathf.Clamp (sizeDelta.x, minSize.x, maxSize.x),
+			Mathf.Clamp (sizeDelta.y, minSize.y, maxSize.y)
+		);
+		
+		panelRectTransform.sizeDelta = sizeDelta;
+	}
+}
+\ No newline at end of file