From e0b010867a678751330be7b64e5d39dc48563159 Mon Sep 17 00:00:00 2001
From: Laurenz Reinthaler <47503977+Schweini07@users.noreply.github.com>
Date: Sat, 5 Dec 2020 02:41:16 +0100
Subject: [PATCH] Allow moving the canvas through panning and zooming through a
 zooming gesture (#391)

---
 src/UI/Canvas/CameraMovement.gd | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/UI/Canvas/CameraMovement.gd b/src/UI/Canvas/CameraMovement.gd
index 3d20fea47..a4d74ba47 100644
--- a/src/UI/Canvas/CameraMovement.gd
+++ b/src/UI/Canvas/CameraMovement.gd
@@ -126,6 +126,13 @@ func _input(event : InputEvent) -> void:
 			zoom_camera(-1)
 		elif event.is_action_pressed("zoom_out"): # Wheel Down Event
 			zoom_camera(1)
+		elif event is InputEventMagnifyGesture: # Zoom Gesture on a Laptop touchpad
+			if event.factor < 1:
+				zoom_camera(1)
+			else:
+				zoom_camera(-1)
+		elif event is InputEventPanGesture: # Pan Gesture on a Latop touchpad
+			offset = offset + event.delta * zoom * 7 # for moving the canvas
 		elif event is InputEventMouseMotion && drag:
 			offset = offset - event.relative * zoom
 			update_transparent_checker_offset()