Qt 5.13 | Qt Quick Demo - Photo Viewer

Qt 5.13.2 Reference Documentation

# Qt Quick Demo - Photo Viewer

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      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 }
                  }
                  ]
              }
          }
      }