sections.qml Example File

views/listview/sections.qml
 /****************************************************************************
 **
 ** Copyright (C) 2017 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** Commercial License Usage
 ** Licensees holding valid commercial Qt licenses may use this file in
 ** accordance with the commercial license agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and The Qt Company. For licensing terms
 ** and conditions see https://www.qt.io/terms-conditions. For further
 ** information use the contact form at https://www.qt.io/contact-us.
 **
 ** BSD License Usage
 ** Alternatively, you may use this file under the terms of the BSD license
 ** as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of The Qt Company Ltd nor the names of its
 **     contributors may be used to endorse or promote products derived
 **     from this software without specific prior written permission.
 **
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 // This example shows how a ListView can be separated into sections using
 // the ListView.section attached property.

 import QtQuick 2.0
 import "content"

 Rectangle {
     id: container
     width: 300
     height: 360

     ListModel {
         id: animalsModel
         ListElement { name: "Ant"; size: "Tiny" }
         ListElement { name: "Flea"; size: "Tiny" }
         ListElement { name: "Parrot"; size: "Small" }
         ListElement { name: "Guinea pig"; size: "Small" }
         ListElement { name: "Rat"; size: "Small" }
         ListElement { name: "Butterfly"; size: "Small" }
         ListElement { name: "Dog"; size: "Medium" }
         ListElement { name: "Cat"; size: "Medium" }
         ListElement { name: "Pony"; size: "Medium" }
         ListElement { name: "Koala"; size: "Medium" }
         ListElement { name: "Horse"; size: "Large" }
         ListElement { name: "Tiger"; size: "Large" }
         ListElement { name: "Giraffe"; size: "Large" }
         ListElement { name: "Elephant"; size: "Huge" }
         ListElement { name: "Whale"; size: "Huge" }
     }

     // The delegate for each section header
     Component {
         id: sectionHeading
         Rectangle {
             width: container.width
             height: childrenRect.height
             color: "lightsteelblue"

             Text {
                 text: section
                 font.bold: true
                 font.pixelSize: 20
             }
         }
     }

     ListView {
         id: view
         anchors.top: parent.top
         anchors.bottom: buttonBar.top
         width: parent.width
         model: animalsModel
         delegate: Text { text: name; font.pixelSize: 18 }

         section.property: "size"
         section.criteria: ViewSection.FullString
         section.delegate: sectionHeading
     }

     Row {
         id: buttonBar
         anchors.bottom: parent.bottom
         anchors.bottomMargin: 1
         spacing: 1
         ToggleButton {
             label: "CurrentLabelAtStart"
             onToggled: {
                 if (active)
                     view.section.labelPositioning |= ViewSection.CurrentLabelAtStart
                 else
                     view.section.labelPositioning &= ~ViewSection.CurrentLabelAtStart
             }
         }
         ToggleButton {
             label: "NextLabelAtEnd"
             onToggled: {
                 if (active)
                     view.section.labelPositioning |= ViewSection.NextLabelAtEnd
                 else
                     view.section.labelPositioning &= ~ViewSection.NextLabelAtEnd
             }
         }
     }
 }