KDecorationButtonTest2.qml

import QtQuick 2.0
import QtQuick.Layouts 1.1
import org.kde.plasma.core 2.0 as PlasmaCore
import org.kde.kwin.private.kdecoration 1.0 as KDecoration
import org.kde.kquickcontrolsaddons 2.0 as KQuickControlsAddons

Item {
	id: main
	width: 400
	height: 400

	KDecoration.Bridge {
		id: bridgeItem

		// plugin: "org.kde.breeze"
		// theme: ""

		plugin: "org.kde.kwin.aurorae"
		theme: "__aurorae__svg__Adapta"
	}
	KDecoration.Settings {
		id: settingsItem
		bridge: bridgeItem.bridge
		borderSizesIndex: 3 // Normal
	}

	KDecoration.Decoration {
		id: activePreview
		anchors.fill: parent
		anchors.margins: units.smallSpacing

		bridge: bridgeItem.bridge
		settings: settingsItem
		
		Component.onCompleted: {
			client.caption = "App Name"
			client.active = true;
			// anchors.leftMargin = Qt.binding(function() { return 10 - (activePreview.shadow ? activePreview.shadow.paddingLeft : 0);});
			// anchors.rightMargin = Qt.binding(function() { return 40 - (activePreview.shadow ? activePreview.shadow.paddingRight : 0);});
			// anchors.topMargin = Qt.binding(function() { return 40 - (activePreview.shadow ? activePreview.shadow.paddingTop : 0);});
			// anchors.bottomMargin = Qt.binding(function() { return 10 - (activePreview.shadow ? activePreview.shadow.paddingBottom : 0);});
		}
	}
	
}