From 18da655b77de70273e1aad7b9c2c4be74f5de91e Mon Sep 17 00:00:00 2001
From: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Date: Fri, 19 Nov 2021 16:58:36 +0100
Subject: quick: add qquicktreeview

This patch adds TreeView to Qt Quick. It is more or less
a copy from the TreeView in Marketplace, but with some
modifications to make it more equal to the already
existing TableView, ListView, and GridView.

[ChangeLog][Item Views] A new view is added: TreeView

Fixes: QTBUG-61630
Change-Id: Ibb9d22cf9c9df021e77d03287872134c2682682a
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
---
 .../snippets/qml/treeview/qml-customdelegate.qml   | 90 ++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 src/quick/doc/snippets/qml/treeview/qml-customdelegate.qml

(limited to 'src/quick/doc/snippets/qml/treeview/qml-customdelegate.qml')

diff --git a/src/quick/doc/snippets/qml/treeview/qml-customdelegate.qml b/src/quick/doc/snippets/qml/treeview/qml-customdelegate.qml
new file mode 100644
index 0000000000..756815cb76
--- /dev/null
+++ b/src/quick/doc/snippets/qml/treeview/qml-customdelegate.qml
@@ -0,0 +1,90 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//![0]
+import QtQuick
+
+Window {
+    width: 600
+    height: 400
+    visible: true
+
+    TreeView {
+        anchors.fill: parent
+        // The model needs to be a QAbstractItemModel
+        // model: yourTreeModel
+
+        delegate: Item {
+            id: root
+
+            implicitWidth: padding + label.x + label.implicitWidth + padding
+            implicitHeight: label.implicitHeight * 1.5
+
+            readonly property real indent: 20
+            readonly property real padding: 5
+
+            // Assigned to by TreeView:
+            required property TreeView treeView
+            required property bool isTreeNode
+            required property bool expanded
+            required property int hasChildren
+            required property int depth
+
+            TapHandler {
+                onTapped: treeView.toggleExpanded(row)
+            }
+
+            Text {
+                id: indicator
+                visible: root.isTreeNode && root.hasChildren
+                x: padding + (root.depth * root.indent)
+                text: root.expanded ? "▼" : "▶"
+            }
+
+            Text {
+                id: label
+                x: padding + (root.isTreeNode ? (root.depth + 1) * root.indent : 0)
+                width: root.width - root.padding - x
+                clip: true
+                text: model.display
+            }
+        }
+    }
+}
+//![0]
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