Qt 5.9 | Qt Quick | Qt Quick Examples - Views | slideshow.qml Example File

Qt 5.9.9 Reference Documentation

# slideshow.qml Example File

views/visualdatamodel/slideshow.qml

      /****************************************************************************
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      ** This file is part of the examples of the Qt Toolkit.
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      ** $QT_BEGIN_LICENSE:BSD$
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      import QtQuick 2.0
      import QtQuick.XmlListModel 2.0
      import QtQml.Models 2.1

      Rectangle {
          id: root

          property Item displayItem: null

          width: 300; height: 400

          color: "black"

          DelegateModel {
              id: visualModel

              model: XmlListModel {
                  source: "http://api.flickr.com/services/feeds/photos_public.gne?format=rss2"
                  query: "/rss/channel/item"
                  namespaceDeclarations: "declare namespace media=\"http://search.yahoo.com/mrss/\";"

                  XmlRole { name: "imagePath"; query: "media:thumbnail/@url/string()" }
                  XmlRole { name: "url"; query: "media:content/@url/string()" }
              }

              delegate: Item {
                  id: delegateItem

                  width: 76; height: 76

                  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: imagePath
                          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 { target: image; z: 2 }
                              PropertyChanges { target: 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 { target: image; z: 1 }
                              PropertyChanges { target: 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 }
          }
      }