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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

import QtQuick 2.12
import QtQml.Models 2.12
import shared as Shared

Rectangle {
    id: root

    property Item displayItem: null

    width: 300; height: 400

    color: "black"

    Shared.FlickrRssModel {
        id: flickrModel
        tags: "fjords,mountains"
    }
    DelegateModel {
        id: visualModel

        model: flickrModel
        delegate: Item {
            id: delegateItem

            width: 76; height: 76

            required property string thumbnail

            Rectangle {
                id: image
                x: 0; y: 0; width: 76; height: 76
                border.width: 1
                border.color: "white"
                color: "black"

                Image {
                    anchors.fill: parent
                    anchors.leftMargin: 1
                    anchors.topMargin: 1

                    source: delegateItem.thumbnail
                    fillMode: Image.PreserveAspectFit
                }

                MouseArea {
                    id: clickArea
                    anchors.fill: parent

                    onClicked: root.displayItem = root.displayItem !== delegateItem ? delegateItem : null
                }

                states: [
                    State {
                        when: root.displayItem === delegateItem
                        name: "inDisplay";
                        ParentChange { target: image; parent: imageContainer; x: 75; y: 75; width: 150; height: 150 }
                        PropertyChanges {
                            image.z: 2
                            delegateItem.DelegateModel.inItems: false
                        }
                    },
                    State {
                        when: root.displayItem !== delegateItem
                        name: "inList";
                        ParentChange { target: image; parent: delegateItem; x: 2; y: 2; width: 75; height: 75 }
                        PropertyChanges {
                            image.z: 1
                            delegateItem.DelegateModel.inItems: true
                        }
                    }
                ]

                transitions: [
                    Transition {
                        from: "inList"
                        SequentialAnimation {
                            PropertyAction { target: delegateItem; property: "DelegateModel.inPersistedItems"; value: true }
                            ParentAnimation {
                                target: image;
                                via: root
                                NumberAnimation { target: image; properties: "x,y,width,height"; duration: 1000 }
                            }
                        }
                    }, Transition {
                        from: "inDisplay"
                        SequentialAnimation {
                            ParentAnimation {
                                target: image
                                NumberAnimation { target: image; properties: "x,y,width,height"; duration: 1000 }
                            }
                            PropertyAction { target: delegateItem; property: "DelegateModel.inPersistedItems"; value: false }
                        }
                    }
                ]
            }
        }
    }


    PathView {
        id: imagePath

        anchors { left: parent.left; top: imageContainer.bottom; right: parent.right; bottom: parent.bottom }
        model: visualModel

        pathItemCount: 7
        path: Path {
            startX: -50; startY: 0
            PathQuad { x: 150; y: 50; controlX: 0; controlY: 50 }
            PathQuad { x: 350; y: 0; controlX: 300; controlY: 50 }
        }
    }

    Item {
        id: imageContainer
        anchors { fill: parent; bottomMargin: 100 }
    }
}