Fix an incorrect zooming behaviour on ScreenSpace-Camera & WorldSpace…

… render mode

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.4] - 2022-09-15
+### Fixed
+- Fix an incorrect zooming behaviour on ScreenSpace-Camera & WorldSpace render mode.
+
 ## [1.0.3] - 2022-08-20
 ### Fixed
 - Fix an incorrect zooming behaviour with Canvas Scalar.

Runtime/PinchableScrollRect.cs

@@ -146,11 +146,24 @@ protected virtual void HandleZoom(float zoomValue) {
 				Mathf.Clamp(newScale.z, lowerScale.z, upperScale.z));
 			this.SetContentLocalScale(newScale);
 			// The world position should remain the same
-			content.position = _worldPos + (Vector3)pixelDelta * _canvas.scaleFactor; // compensate for value due to pivot change
+			content.position = _worldPos + (Vector3)pixelDelta * getScaleFactor(); // compensate for value due to pivot change
 			// Reset delta since zooming deceleration take place at the same pivot
 			zoomPosDelta = Vector2.zero;
 		}
 
+		float getScaleFactor() {
+			switch (_canvas.renderMode) {
+				case RenderMode.ScreenSpaceOverlay:
+					return _canvas.scaleFactor;
+				case RenderMode.ScreenSpaceCamera:
+					return _canvas.scaleFactor / _canvas.referencePixelsPerUnit;
+				case RenderMode.WorldSpace:
+					return _canvas.transform.localScale.x;
+				default:
+					throw new ArgumentOutOfRangeException();
+			}
+		}
+
 		protected virtual void SetContentPivotPosition(Vector2 pivot) {
 			Vector2 _pivot = content.pivot;
 			if (!this.horizontal) pivot.x = _pivot.x;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "com.lokosolo.pinchable-scrollrect",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "displayName": "Pinchable ScrollRect",
   "description": "Pinchable ScrollRect allows users to zoom in and out on the ScrollRect with both touches pinching input or mouse scroll input.",
   "unity": "2018.4",