import QtQuick 2.2 Rectangle{ property size terminalSize property real topOpacity: 0.6 width: textSize.width * 2 height: textSize.height * 2 radius: 5 border.width: 2 border.color: "white" color: "black" opacity: sizetimer.running ? 0.6 : 0.0 Behavior on opacity{NumberAnimation{duration: 200}} onTerminalSizeChanged: sizetimer.restart() Text{ id: textSize anchors.centerIn: parent color: "white" text: terminalSize.width + "x" + terminalSize.height } Timer{ id: sizetimer interval: 1000 running: false } }