Reimplement Qt5 OpacityMask using Qt6 MultiEffect

https://darapsa.org/qessenger.git/commit/?id=5f777bca13beadd0a56d2264225b0c09e49541a2
The mask Rectangle needs to be put outside of the MultiEffect,
and referred to by the Rectangle's ID.
It wouldn't work if it's put directly on MultiEffect's maskSource.

https://forum.qt.io/topic/145956/rounded-image-in-qt6
Enabling layer and invisibility on the mask rectangle are a must.
Take notice on what Jacoco wrote about jagged edges at the end of the
thread. Will test that later.

1 files changed, 12 insertions, 6 deletions

diff --git a/Header/CartItem.ui.qml b/Header/CartItem.ui.qml
index 5df5745..f1897d7 100644
--- a/Header/CartItem.ui.qml
+++ b/Header/CartItem.ui.qml
@@ -2,6 +2,7 @@ import QtQuick
 import QtQuick.Controls
 import QtQuick.Layouts
 import Qt5Compat.GraphicalEffects
+import QtQuick.Effects
 import Bootstrap
 import Eduport
 
@@ -34,14 +35,19 @@ ColumnLayout {
 			}
 			layer {
 				enabled: true
-				effect: OpacityMask {
-					maskSource: Rectangle {
-						width: 50
-						height: 50
-						radius: 5.2
-					}
+				effect: MultiEffect {
+					maskEnabled: true
+					maskSource: maskRectangle
 				}
 			}
+			Rectangle {
+				id: maskRectangle
+				width: 50
+				height: 50
+				radius: 5.2
+				layer.enabled: true
+				visible: false
+			}
 		}
 
 		ColumnLayout {