Qt Reference Documentation

# mousearea-example.qml Example File

declarative/touchinteraction/mousearea/mousearea-example.qml

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     ** This file is part of the examples of the Qt Toolkit.
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     import QtQuick 1.0

     Rectangle {
         id: box
         width: 350; height: 250

         Rectangle {
             id: redSquare
             width: 80; height: 80
             anchors.top: parent.top; anchors.left: parent.left; anchors.margins: 10
             color: "red"

             Text { text: "Click"; font.pixelSize: 16; anchors.centerIn: parent }

             MouseArea {
                 anchors.fill: parent
                 hoverEnabled: true
                 acceptedButtons: Qt.LeftButton | Qt.RightButton

                 onEntered: info.text = 'Entered'
                 onExited: info.text = 'Exited (pressed=' + pressed + ')'

                 onPressed: {
                     info.text = 'Pressed (button=' + (mouse.button == Qt.RightButton ? 'right' : 'left')
                         + ' shift=' + (mouse.modifiers & Qt.ShiftModifier ? 'true' : 'false') + ')'
                     var posInBox = redSquare.mapToItem(box, mouse.x, mouse.y)
                     posInfo.text = + mouse.x + ',' + mouse.y + ' in square'
                             + ' (' + posInBox.x + ',' + posInBox.y + ' in window)'
                 }

                 onReleased: {
                     info.text = 'Released (isClick=' + mouse.isClick + ' wasHeld=' + mouse.wasHeld + ')'
                     posInfo.text = ''
                 }

                 onPressAndHold: info.text = 'Press and hold'
                 onClicked: info.text = 'Clicked (wasHeld=' + mouse.wasHeld + ')'
                 onDoubleClicked: info.text = 'Double clicked'
             }
         }

         Rectangle {
             id: blueSquare
             width: 80; height: 80
             x: box.width - width - 10; y: 10    // making this item draggable, so don't use anchors
             color: "blue"

             Text { text: "Drag"; font.pixelSize: 16; color: "white"; anchors.centerIn: parent }

             MouseArea {
                 anchors.fill: parent
                 drag.target: blueSquare
                 drag.axis: Drag.XandYAxis
                 drag.minimumX: 0
                 drag.maximumX: box.width - parent.width
                 drag.minimumY: 0
                 drag.maximumY: box.height - parent.width
             }
         }

         Text {
             id: info
             anchors.bottom: posInfo.top; anchors.horizontalCenter: parent.horizontalCenter; anchors.margins: 30

             onTextChanged: console.log(text)
         }

         Text {
             id: posInfo
             anchors.bottom: parent.bottom; anchors.horizontalCenter: parent.horizontalCenter; anchors.margins: 30
         }
     }