tests/proxymodeltestapp/tree.qml

0001  /*
0002     SPDX-FileCopyrightText: 2020 Marco Martin <mart@kde.org>
0003
0004     SPDX-License-Identifier: LGPL-2.0-or-later
0005 */
0006 import QtQuick 2.6
0007 import QtQuick.Layouts 1.4
0008 import QtQuick.Controls as QQC2
0009 import org.kde.kitemmodels 1.0
0010 import org.kde.qqc2desktopstyle.private 1.0 as StylePrivate
0011
0012
0013 QQC2.ScrollView {
0014     id: root
0015     width: 600
0016     height: 500
0017
0018     ListView {
0019         spacing: 0
0020         clip: true
0021         add: Transition {
0022             NumberAnimation {
0023                 property: "opacity"; from: 0; to: 1; duration: 250 }
0024         }
0025         addDisplaced: Transition {
0026             NumberAnimation { properties: "y"; duration: 250 }
0027         }
0028         remove: Transition {
0029             NumberAnimation {
0030                 property: "opacity"; from: 1; to: 0; duration: 250 }
0031         }
0032         removeDisplaced: Transition {
0033             NumberAnimation { properties: "y"; duration: 250 }
0034         }
0035         model: KDescendantsProxyModel {
0036             id: descendantsModel
0037             expandsByDefault: false
0038             model: _model
0039         }
0040
0041         delegate: QQC2.ItemDelegate {
0042             id: delegate
0043             highlighted: false
0044
0045             contentItem: RowLayout {
0046             RowLayout {
0047                     Layout.topMargin: -delegate.topPadding
0048                     Layout.bottomMargin: -delegate.bottomPadding
0049                     Repeater {
0050
0051                         model: kDescendantLevel-1
0052
0053                         delegate: StylePrivate.StyleItem {
0054                             Layout.preferredWidth: controlRoot.width
0055                             Layout.fillHeight: true
0056                             visible: true
0057                         // control: controlRoot
0058                             elementType: "itembranchindicator"
0059                             properties: {
0060                                 "isItem": false,
0061                                 "hasSibling": kDescendantHasSiblings[modelData]
0062                             }
0063                         }
0064                     }
0065                     QQC2.Button {
0066                         id: controlRoot
0067                         Layout.preferredWidth: background.pixelMetric("treeviewindentation")
0068                         Layout.fillHeight: true
0069                         enabled: model.kDescendantExpandable
0070                         text: model.kDescendantExpanded ? "-" : "+"
0071                         onClicked: descendantsModel.toggleChildren(index)
0072                         background: StylePrivate.StyleItem {
0073                             id: styleitem
0074                             control: controlRoot
0075                             hover: controlRoot.hovered
0076                             elementType: "itembranchindicator"
0077                             on: model.kDescendantExpanded
0078                             properties: {
0079                                 "isItem": true,
0080                                 "hasChildren": model.kDescendantExpandable,
0081                                 "hasSibling": model.kDescendantHasSiblings[model.kDescendantHasSiblings.length - 1]
0082                             }
0083                         }
0084                     }
0085             }
0086
0087                 QQC2.Label {
0088                     Layout.fillWidth: true
0089                     text: model.display
0090                 }
0091             }
0092         }
0093     }
0094 }