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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

import QtQuick 2.5
import QtQuick.Controls 1.4
import QtQuick.Controls.Private 1.0

/*!
    \qmltype TreeViewStyle
    \inqmlmodule QtQuick.Controls.Styles
    \since 5.5
    \ingroup viewsstyling
    \inherits TableViewStyle
    \brief Provides custom styling for TreeView

    \note This class derives from \l {QtQuick.Controls.Styles::}{TableViewStyle}
    and supports all of the properties defined there.
*/
BasicTableViewStyle {
    id: root

    /*! The \l TreeView this style is attached to. */
    readonly property TreeView control: __control

    /*!
        The amount each level is indented relatively to its parent level.
    */
    property int indentation: 12

    // TODO - to update
    /*! \qmlproperty Component TreeViewStyle::branchDelegate

    This property defines a delegate to draw the branch indicator.

    In the branch delegate you have access to the following special properties:
    \list
    \li  styleData.column - the index of the column
    \li  styleData.selected - if the item is currently selected
    \li  styleData.textColor - the default text color for an item
    \li  styleData.isExpanded - true when the item is expanded
    \li  styleData.hasChildren - true if the model index of the current item has children
    \li  styleData.hasSibling - true if the model index of the current item has sibling
    \endlist
    */

    property Component branchDelegate: Item {
        width: 16
        height: 16
        Text {
            visible: styleData.column === 0 && styleData.hasChildren
            text: styleData.isExpanded ? "\u25bc" : "\u25b6"
            color: !control.activeFocus || styleData.selected ? styleData.textColor : "#666"
            font.pointSize: 10
            renderType: Text.NativeRendering
            anchors.centerIn: parent
            anchors.verticalCenterOffset: styleData.isExpanded ? 2 : 0
        }
    }

    __branchDelegate: branchDelegate
    __indentation: indentation
}