- Qt 5.5
- Qt Quick
- Qt Quick Demo - Photo Viewer
- AlbumDelegate.qml Example File
- Qt 5.5.1 Reference Documentation

# AlbumDelegate.qml Example File

demos/photoviewer/PhotoViewerCore/AlbumDelegate.qml

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the QtQml module of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:LGPL21$
    ** 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 2.1 or version 3 as published by the Free
    ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
    ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
    ** following information to ensure the GNU Lesser General Public License
    ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
    ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    **
    ** As a special exception, The Qt Company gives you certain additional
    ** rights. These rights are described in The Qt Company LGPL Exception
    ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

    import QtQuick 2.0
    import QtQuick.XmlListModel 2.0
    import QtQml.Models 2.1

    Component {
        id: albumDelegate
        Package {

            Item {
                Package.name: 'browser'
                GridView {
                    id: photosGridView; model: visualModel.parts.grid; width: mainWindow.width; height: mainWindow.height - 21
                    x: 0; y: 21; cellWidth: 160; cellHeight: 153; interactive: false
                    onCurrentIndexChanged: photosListView.positionViewAtIndex(currentIndex, ListView.Contain)
                }
            }

            Item {
                Package.name: 'fullscreen'
                ListView {
                    id: photosListView; model: visualModel.parts.list; orientation: Qt.Horizontal
                    width: mainWindow.width; height: mainWindow.height; interactive: false
                    onCurrentIndexChanged: photosGridView.positionViewAtIndex(currentIndex, GridView.Contain)
                    highlightRangeMode: ListView.StrictlyEnforceRange; snapMode: ListView.SnapOneItem
                }
            }

            Item {
                Package.name: 'album'
                id: albumWrapper; width: 210; height: 220

                DelegateModel {
                    id: visualModel; delegate: PhotoDelegate { }
                    model: RssModel { id: rssModel; tags: tag }
                }

                BusyIndicator {
                    id: busyIndicator
                    anchors { centerIn: parent; verticalCenterOffset: -20 }
                    on: rssModel.status != XmlListModel.Ready
                }

                PathView {
                    id: photosPathView; model: visualModel.parts.stack; pathItemCount: 5
                    visible: !busyIndicator.visible
                    anchors.centerIn: parent; anchors.verticalCenterOffset: -30
                    path: Path {
                        PathAttribute { name: 'z'; value: 9999.0 }
                        PathLine { x: 1; y: 1 }
                        PathAttribute { name: 'z'; value: 0.0 }
                    }
                }

                MouseArea {
                    anchors.fill: parent
                    onClicked: mainWindow.editMode ? photosModel.remove(index) : albumWrapper.state = 'inGrid'
                }

                Tag {
                    anchors { horizontalCenter: parent.horizontalCenter; bottom: parent.bottom; bottomMargin: 10 }
                    frontLabel: tag; backLabel: qsTr("Remove"); flipped: mainWindow.editMode
                    onTagChanged: rssModel.tags = tag
                    onBackClicked: if (mainWindow.editMode) photosModel.remove(index);
                }

                states: [
                State {
                    name: 'inGrid'
                    PropertyChanges { target: photosGridView; interactive: true }
                    PropertyChanges { target: albumsShade; opacity: 1 }
                    PropertyChanges { target: backButton; onClicked: albumWrapper.state = ''; y: 6 }
                },
                State {
                    name: 'fullscreen'; extend: 'inGrid'
                    PropertyChanges { target: photosGridView; interactive: false }
                    PropertyChanges { target: photosListView; interactive: true }
                    PropertyChanges { target: photosShade; opacity: 1 }
                    PropertyChanges { target: backButton; y: -backButton.height - 8 }
                }
                ]

                GridView.onAdd: NumberAnimation {
                    target: albumWrapper; properties: "scale"; from: 0.0; to: 1.0; easing.type: Easing.OutQuad
                }
                GridView.onRemove: SequentialAnimation {
                    PropertyAction { target: albumWrapper; property: "GridView.delayRemove"; value: true }
                    NumberAnimation { target: albumWrapper; property: "scale"; from: 1.0; to: 0.0; easing.type: Easing.OutQuad }
                    PropertyAction { target: albumWrapper; property: "GridView.delayRemove"; value: false }
                }

                transitions: [
                Transition {
                    from: '*'; to: 'inGrid'
                    SequentialAnimation {
                        NumberAnimation { properties: 'opacity'; duration: 250 }
                        PauseAnimation { duration: 350 }
                        NumberAnimation { target: backButton; properties: "y"; duration: 200; easing.type: Easing.OutQuad }
                    }
                },
                Transition {
                    from: 'inGrid'; to: '*'
                    NumberAnimation { properties: "y,opacity"; easing.type: Easing.OutQuad; duration: 300 }
                }
                ]
            }
        }
    }