add book

Qt6QMLBeginnersCode/4.SignalsSlots/9-DifferentQMLComponentSignals/Notifier.qml

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+// Copyright (c) Daniel Gakwaya.
+// SPDX-License-Identifier: MIT
+
+import QtQuick
+
+Item {
+
+    //Could have used an alias for rectColor here, but I just want you
+    //to see that you can also do it this way, and rely on the property handler
+    // to save the new color when applied.
+
+
+    width: notifierRectId.width
+    height: notifierRectId.height
+    property int count: 0
+    signal notify( string count)//Declare signal
+
+
+    property Receiver target: null
+    onTargetChanged: {
+        notify.connect(target.receiveInfo)
+    }
+
+    property color rectColor: "black"
+    onRectColorChanged: {
+        notifierRectId.color = rectColor
+    }
+
+
+
+    Rectangle {
+        id: notifierRectId
+        width: 200
+        height: 200
+        color: "red"
+
+
+        Text {
+            id: displayTextId
+            anchors.centerIn: parent
+            font.pointSize: 20
+            text: count
+        }
+
+        MouseArea{
+            anchors.fill: parent
+            onClicked: {
+                count++
+                notify(count)
+            }
+        }
+    }
+
+}