/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
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** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** 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
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import QtQuick 2.8
import QtQuick.Window 2.2
import QtQuick.Controls 2.1
import QtQuick.Controls.impl 2.1
import QtQuick.Templates 2.1 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

    spacing: 8
    padding: 6
    leftPadding: padding + 6
    rightPadding: padding + 6

    delegate: ItemDelegate {
        width: control.popup.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.leftPadding : control.width - width - control.rightPadding
        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 && control.indicator ? control.indicator.width + control.spacing : 0
        rightPadding: !control.mirrored && control.indicator ? control.indicator.width + control.spacing : 0

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

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

            T.ScrollIndicator.vertical: ScrollIndicator { }
        }

        background: Rectangle { }
    }
}
