AnchorChanges QML Element

The AnchorChanges element allows you to change the anchors of an item in a state. More...

Properties

Detailed Description

The AnchorChanges element is used to modify the anchors of an item in a State.

AnchorChanges cannot be used to modify the margins on an item. For this, use PropertyChanges intead.

In the following example we change the top and bottom anchors of an item using AnchorChanges, and the top and bottom anchor margins using PropertyChanges:

import QtQuick 1.0

Rectangle {
    id: window
    width: 120; height: 120
    color: "black"

    Rectangle { id: myRect; width: 50; height: 50; color: "red" }

    states: State {
        name: "reanchored"

        AnchorChanges {
            target: myRect
            anchors.top: window.top
            anchors.bottom: window.bottom
        }
        PropertyChanges {
            target: myRect
            anchors.topMargin: 10
            anchors.bottomMargin: 10
        }
    }

    MouseArea { anchors.fill: parent; onClicked: window.state = "reanchored" }
}

AnchorChanges can be animated using AnchorAnimation.

//animate our anchor changes
Transition {
    AnchorAnimation {}
}

Margin animations can be animated using NumberAnimation.

For more information on anchors see Anchor Layouts.

Property Documentation

anchors group

anchors.left : AnchorLine

anchors.right : AnchorLine

anchors.horizontalCenter : AnchorLine

anchors.top : AnchorLine

anchors.bottom : AnchorLine

anchors.verticalCenter : AnchorLine

anchors.baseline : AnchorLine

These properties change the respective anchors of the item.

To reset an anchor you can assign undefined:

AnchorChanges {
    target: myItem
    anchors.left: undefined          //remove myItem's left anchor
    anchors.right: otherItem.right
}

target : Item

This property holds the Item for which the anchor changes will be applied.


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