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Diffstat (limited to 'tests/manual/listview/main.qml')
| -rw-r--r-- | tests/manual/listview/main.qml | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/tests/manual/listview/main.qml b/tests/manual/listview/main.qml new file mode 100644 index 0000000000..723e10ac05 --- /dev/null +++ b/tests/manual/listview/main.qml @@ -0,0 +1,171 @@ +/**************************************************************************** +** +** Copyright (C) 2019 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQuick module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.15 +import QtQuick.Window 2.2 +import QtQuick.Controls 2.5 +import Qt.labs.qmlmodels 1.0 +import TestModel 0.1 + +Window { + id: root + visible: true + width: 640 + height: 480 + + property int rows: 500 + property int columns: 20 + property real delegateHeight: 10 + property real delegateWidth: 50 + + CheckBox { + id: reuseItemsBox + text: "Reuse items" + checked: true + } + + Rectangle { + anchors.fill: parent + anchors.margins: 10 + anchors.topMargin: reuseItemsBox.height + 10 + color: "lightgray" + + ListView { + id: listView + anchors.fill: parent + + reuseItems: reuseItemsBox.checked + + cacheBuffer: 0 + contentWidth: columns * delegateWidth + contentHeight: rows * delegateHeight + flickableDirection: Flickable.HorizontalAndVerticalFlick + clip: true + + model: TestModel { + rowCount: root.rows + } + + ScrollBar.vertical: ScrollBar { policy: ScrollBar.AlwaysOn } + ScrollBar.horizontal: ScrollBar { policy: ScrollBar.AlwaysOn } + + delegate: DelegateChooser { + role: "delegateType" + + DelegateChoice { + roleValue: "type1" + + Item { + width: listView.contentWidth + height: delegateHeight + property int reusedCount: 0 + + ListView.onReused: reusedCount++ + + Text { + id: text1 + text: "Reused count:" + reusedCount + font.pixelSize: 9 + } + + Row { + id: choice1 + width: listView.contentWidth + height: delegateHeight + anchors.left: text1.right + anchors.leftMargin: 5 + property color color: Qt.rgba(0.6, 0.6, 0.8, 1) + + Component.onCompleted: { + for (var i = 0; i < columns; ++i) + cellComponent.createObject(choice1, {column: i, color: color}) + } + } + } + } + + DelegateChoice { + roleValue: "type2" + + Item { + width: listView.contentWidth + height: delegateHeight + property int reusedCount: 0 + + ListView.onReused: reusedCount++ + + Text { + id: text2 + text: "Reused count:" + reusedCount + font.pixelSize: 9 + } + + Row { + id: choice2 + width: listView.contentWidth + height: delegateHeight + anchors.left: text2.right + anchors.leftMargin: 5 + property color color: Qt.rgba(0.3, 0.3, 0.8, 1) + + Component.onCompleted: { + for (var i = 0; i < columns; ++i) + cellComponent.createObject(choice2, {column: i, color: color}) + } + } + } + } + } + + } + } + + Component { + id: cellComponent + Rectangle { + height: delegateHeight + width: delegateWidth + property int column + Text { + text: "Lorem ipsum dolor sit amet" + font.pixelSize: 9 + } + } + } +} |