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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
import "content"
//! [0]
Rectangle {
id: root
property int current: 0
property bool increasing: true
// Example index automation for convenience, disabled on click or tap
SequentialAnimation {
id: anim
loops: -1
running: true
ScriptAction {
script: if (root.increasing) {
root.current++;
if (root.current >= aModel.count -1) {
root.current = aModel.count - 1;
root.increasing = !root.increasing;
}
} else {
root.current--;
if (root.current <= 0) {
root.current = 0;
root.increasing = !root.increasing;
}
}
}
PauseAnimation { duration: 500 }
}
//! [0]
MouseArea{
id: ma
z: 1
anchors.fill: parent
onClicked: { z = 1 - z; if (anim.running) anim.stop(); else anim.restart();}
}
width: 320; height: 480
// This example shows the same model in three different ListView items,
// with different highlight ranges. The highlight ranges are set by the
// preferredHighlightBegin and preferredHighlightEnd properties in ListView.
//
// The first ListView does not set a highlight range, so its currentItem
// can move freely within the visible area. If it moves outside the
// visible area, the view is automatically scrolled to keep the current
// item visible.
//
// The second ListView sets a highlight range which attempts to keep the
// current item within the bounds of the range. However,
// items will not scroll beyond the beginning or end of the view,
// forcing the highlight to move outside the range at the ends.
//
// The third ListView sets the highlightRangeMode to StrictlyEnforceRange
// and sets a range smaller than the height of an item. This
// forces the current item to change when the view is flicked,
// since the highlight is unable to move.
//
// All ListViews bind their currentIndex to the root.current property.
// The first ListView sets root.current whenever its currentIndex changes
// due to keyboard interaction.
// Flicking the third ListView with the mouse also changes root.current.
//! [1]
ListView {
id: list1
height: 50; width: parent.width
model: PetsModel {id: aModel}
delegate: petDelegate
orientation: ListView.Horizontal
highlight: Rectangle { color: "lightsteelblue" }
currentIndex: root.current
onCurrentIndexChanged: root.current = currentIndex
focus: true
}
ListView {
id: list2
y: 160
height: 50; width: parent.width
model: PetsModel {}
delegate: petDelegate
orientation: ListView.Horizontal
highlight: Rectangle { color: "yellow" }
currentIndex: root.current
preferredHighlightBegin: 80; preferredHighlightEnd: 220
highlightRangeMode: ListView.ApplyRange
}
ListView {
id: list3
y: 320
height: 50; width: parent.width
model: PetsModel {}
delegate: petDelegate
orientation: ListView.Horizontal
highlight: Rectangle { color: "yellow" }
currentIndex: root.current
onCurrentIndexChanged: root.current = currentIndex
preferredHighlightBegin: 125; preferredHighlightEnd: 125
highlightRangeMode: ListView.StrictlyEnforceRange
}
//! [1]
// The delegate for each list
Component {
id: petDelegate
Item {
id: petDelegateItem
width: 160
height: column.height
required property int index
required property string name
required property string type
required property int age
Column {
id: column
Text { text: 'Name: ' + petDelegateItem.name }
Text { text: 'Type: ' + petDelegateItem.type }
Text { text: 'Age: ' + petDelegateItem.age }
}
MouseArea {
anchors.fill: parent
onClicked: root.current = parent.index
}
}
}
//! [2]
}
//! [2]
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