移動窗口保持Qml MouseArea

Question

我想知道如何通過按住鼠標區域並按住Qt/QML來移動窗口。

Answer 1

可以公開視圖控件到QML有：

QmlApplicationViewer viewer; 
QDeclarativeContext *context = viewer.rootContext(); 
context->setContextProperty("viewerWidget", &viewer); 

然後修改它的屬性pos移動窗口：

MouseArea {   
    anchors.fill: parent 
    property variant previousPosition   
    onPressed: { 
     previousPosition = Qt.point(mouseX, mouseY) 
    } 
    onPositionChanged: { 
     if (pressedButtons == Qt.LeftButton) { 
      var dx = mouseX - previousPosition.x 
      var dy = mouseY - previousPosition.y 
      viewerWidget.pos = Qt.point(viewerWidget.pos.x + dx, 
             viewerWidget.pos.y + dy) 
     } 
    } 
}