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..
---------------------------------------------------------------------------
Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
All rights reserved.
This work, unless otherwise expressly stated, is licensed under a
Creative Commons Attribution-ShareAlike 2.5.
The full license document is available from
http://creativecommons.org/licenses/by-sa/2.5/legalcode .
---------------------------------------------------------------------------
How to make and handle multiple toplevel windows
================================================
You can use the ``visible`` or the ``opacity`` property to hide a toplevel element. Visually, both choices look the same. The only difference is that the ``visible`` property changes the focus behavior. You should keep this in mind and check what is better in your case.
A simple version without any control elements:
.. code-block:: js
import QtQuick 1.1
Item {
width: 360
height: 360
Rectangle {
id: top1
anchors.fill: parent
Text {
anchors.centerIn: parent
text: "I'm top #1, click me to hide"
}
MouseArea {
anchors.fill: parent
onClicked: {
top1.visible=false
top2.visible=true
}
}
}
Rectangle {
id: top2
anchors.fill: parent
Text {
anchors.centerIn: parent
text: "I'm top #2, click me to hide"
}
MouseArea {
anchors.fill: parent
onClicked: {
top2.visible=false
top1.visible=true
}
}
}
}
A more complex version with a component for a button:
.. code-block:: js
import QtQuick 1.1
Rectangle {
id: root
property string label: "no label"
width: labelText.width + 10
height: labelText.height + 10
color: "red"
radius: 8
signal clicked()
Text {
id: labelText
text: label
anchors.centerIn: parent
}
MouseArea {
anchors.fill: parent
onClicked: root.clicked()
}
}
.. code-block:: js
import QtQuick 1.1
Item {
width: 360
height: 360
Rectangle {
id: top1
anchors.fill: parent
Text {
anchors.centerIn: parent
text: "I'm top #1"
}
Button2 {
anchors.bottom: parent.bottom
anchors.horizontalCenter: parent.horizontalCenter
color: "lightblue"
label: "Open top 2"
onClicked: {
top1.visible=false
top2.visible=true
}
}
}
Rectangle {
id: top2
anchors.fill: parent
Text {
anchors.centerIn: parent
text: "I'm top #2"
}
Button2 {
anchors.bottom: parent.bottom
anchors.horizontalCenter: parent.horizontalCenter
color: "lightgrey"
label: "Open top 1"
onClicked: {
top2.visible=false
top1.visible=true
}
}
}
}
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