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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Controls 2 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 2.8
import QtQuick.Window 2.2
import QtQuick.Controls 2.1
import QtQuick.Controls.impl 2.1
import QtQuick.Templates 2.2 as T

T.ComboBox {
    id: control

    implicitWidth: Math.max(background ? background.implicitWidth : 0,
                            contentItem.implicitWidth + leftPadding + rightPadding)
    implicitHeight: Math.max(background ? background.implicitHeight : 0,
                             Math.max(contentItem.implicitHeight,
                                      indicator ? indicator.implicitHeight : 0) + topPadding + bottomPadding)
    baselineOffset: contentItem.y + contentItem.baselineOffset

    leftPadding: padding + (!control.mirrored || !indicator || !indicator.visible ? 0 : indicator.width + spacing)
    rightPadding: padding + (control.mirrored || !indicator || !indicator.visible ? 0 : indicator.width + spacing)

    delegate: ItemDelegate {
        width: parent.width
        text: control.textRole ? (Array.isArray(control.model) ? modelData[control.textRole] : model[control.textRole]) : modelData
        font.weight: control.currentIndex === index ? Font.DemiBold : Font.Normal
        highlighted: control.highlightedIndex == index
        hoverEnabled: control.hoverEnabled
    }

    indicator: Image {
        x: control.mirrored ? control.padding : control.width - width - control.padding
        y: control.topPadding + (control.availableHeight - height) / 2
        source: "image://default/double-arrow/" + (control.visualFocus ? Default.focusColor : Default.textColor)
        sourceSize.width: width
        sourceSize.height: height
        opacity: enabled ? 1 : 0.3
    }

    contentItem: Text {
        leftPadding: control.mirrored ? 0 : 12
        rightPadding: control.mirrored ? 12 : 0
        topPadding: 6 - control.padding
        bottomPadding: 6 - control.padding

        text: control.displayText
        font: control.font
        color: control.visualFocus ? Default.focusColor : Default.textColor
        horizontalAlignment: Text.AlignLeft
        verticalAlignment: Text.AlignVCenter
        elide: Text.ElideRight
        opacity: enabled ? 1 : 0.3
    }

    background: Rectangle {
        implicitWidth: 120
        implicitHeight: 40

        color: control.visualFocus ? (control.pressed ? Default.focusPressedColor : Default.focusLightColor) :
            (control.down ? Default.buttonPressedColor : Default.buttonColor)
        border.color: Default.focusColor
        border.width: control.visualFocus ? 2 : 0
        visible: !control.flat || control.pressed
    }

    popup: T.Popup {
        y: control.height - (control.visualFocus ? 0 : 1)
        width: control.width
        implicitHeight: contentItem.implicitHeight
        topMargin: 6
        bottomMargin: 6

        contentItem: ListView {
            clip: true
            implicitHeight: contentHeight
            model: control.popup.visible ? control.delegateModel : null
            currentIndex: control.highlightedIndex
            highlightRangeMode: ListView.ApplyRange
            highlightMoveDuration: 0

            Rectangle {
                z: 10
                width: parent.width
                height: parent.height
                color: "transparent"
                border.color: Default.frameLightColor
            }

            T.ScrollIndicator.vertical: ScrollIndicator { }
        }

        background: Rectangle { }
    }
}