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/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/Ambiance/1.3/BottomEdgeHintStyle.qml is in ubuntu-ui-toolkit-theme 1.3.1918+16.04.20160404-0ubuntu1.

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/*
 * Copyright 2016 Canonical Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import QtQuick 2.4
import Ubuntu.Components 1.3
import Ubuntu.Components.ListItems 1.3

Item {
    id: bottomEdgeHintStyle
    implicitWidth: styledItem.parent.width
    implicitHeight: units.gu(4)

    readonly property BottomEdgeHint hint: styledItem

    property color backgroundColor: styledItem.enabled
                                    ? theme.palette.normal.overlay
                                    : theme.palette.disabled.overlay

    property color foregroundColor: styledItem.enabled
                                    ? theme.palette.normal.overlayText
                                    : theme.palette.disabled.overlayText

    // translate hint status into state
    state: {
        switch (hint.status) {
        case BottomEdgeHint.Hidden: return "Hidden";
        case BottomEdgeHint.Inactive: return "Inactive"
        case BottomEdgeHint.Active: return "Active"
        case BottomEdgeHint.Locked: return "Locked"
        }
    }

    states: [
        State {
            name: "Inactive"
            extend: ""
        },
        State {
            name: "Active"
            PropertyChanges {
                target: h1
                anchors.verticalCenterOffset: styledItem.height / 2
            }
            PropertyChanges {
                target: h2
                anchors.topMargin: 0
            }
        },
        State {
            name: "Hidden"
            PropertyChanges {
                target: styledItem
                opacity: 0.0
            }
        },
        State {
            name: "Locked"
            PropertyChanges {
                target: h1
                anchors.verticalCenterOffset: styledItem.height / 2
            }
            PropertyChanges {
                target: h2
                anchors.topMargin: 0
            }
        }
    ]
    transitions: [
        Transition {
            from: "*"
            to: "Active"
            reversible: true
            UbuntuNumberAnimation {
                targets: [h1, h2]
                properties: "anchors.verticalCenterOffset, anchors.topMargin"
            }
        },
        Transition {
            from: "*"
            to: "Hidden"
            reversible: true
            UbuntuNumberAnimation {
                target: styledItem
                property: "opacity"
                duration: UbuntuAnimation.SlowDuration
            }
        }
    ]

    clip: true

    Icon {
        id: h1
        width: units.gu(3)
        height: units.gu(1.5)
        anchors {
            centerIn: parent
            topMargin: styledItem.height
        }
        name: "toolkit_bottom-edge-hint"
        color: foregroundColor

        FocusShape {
        }
    }

    Rectangle {
        id: h2
        anchors {
            top: parent.top
            left: parent.left
            right: parent.right
            topMargin: styledItem.height
        }
        height: styledItem.height
        color: backgroundColor
        ThinDivider {
            anchors.top: parent.top
        }

        FocusShape {
            anchors {
                fill: undefined
                margins: 0
                top: parent.top
                bottom: parent.bottom
                horizontalCenter: parent.horizontalCenter
            }
            // icon, spacing, label, margin on either side
            width: icon.width + units.gu(1) + label.width + units.gu(0.46) * 2
        }
        Row {
            anchors {
                top: parent.top
                bottom: parent.bottom
                horizontalCenter: parent.horizontalCenter
            }
            spacing: units.gu(1)
            Icon {
                id: icon
                name: styledItem.iconName
                source: styledItem.iconSource
                width: height
                height: units.gu(2)
                anchors.verticalCenter: parent.verticalCenter
                color: foregroundColor
            }
            Label {
                id: label
                text: styledItem.text
                textSize: Label.Medium
                color: foregroundColor
                height: styledItem.height
                anchors.verticalCenter: parent.verticalCenter
                verticalAlignment: Text.AlignVCenter
            }
        }
    }
}