Qt 5.11 | Qt Quick | Qt Quick Examples - Drag and Drop | gridview.qml Example File

Qt 5.11.3 Reference Documentation

# gridview.qml Example File

draganddrop/views/gridview.qml

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      import QtQuick 2.0
      import QtQml.Models 2.1

      GridView {
          id: root
          width: 320; height: 480
          cellWidth: 80; cellHeight: 80

          displaced: Transition {
              NumberAnimation { properties: "x,y"; easing.type: Easing.OutQuad }
          }

          model: DelegateModel {
              id: visualModel
              model: ListModel {
                  id: colorModel
                  ListElement { color: "blue" }
                  ListElement { color: "green" }
                  ListElement { color: "red" }
                  ListElement { color: "yellow" }
                  ListElement { color: "orange" }
                  ListElement { color: "purple" }
                  ListElement { color: "cyan" }
                  ListElement { color: "magenta" }
                  ListElement { color: "chartreuse" }
                  ListElement { color: "aquamarine" }
                  ListElement { color: "indigo" }
                  ListElement { color: "black" }
                  ListElement { color: "lightsteelblue" }
                  ListElement { color: "violet" }
                  ListElement { color: "grey" }
                  ListElement { color: "springgreen" }
                  ListElement { color: "salmon" }
                  ListElement { color: "blanchedalmond" }
                  ListElement { color: "forestgreen" }
                  ListElement { color: "pink" }
                  ListElement { color: "navy" }
                  ListElement { color: "goldenrod" }
                  ListElement { color: "crimson" }
                  ListElement { color: "teal" }
              }
              delegate: MouseArea {
                  id: delegateRoot

                  property int visualIndex: DelegateModel.itemsIndex

                  width: 80; height: 80
                  drag.target: icon

                  Rectangle {
                      id: icon
                      width: 72; height: 72
                      anchors {
                          horizontalCenter: parent.horizontalCenter;
                          verticalCenter: parent.verticalCenter
                      }
                      color: model.color
                      radius: 3

                      Drag.active: delegateRoot.drag.active
                      Drag.source: delegateRoot
                      Drag.hotSpot.x: 36
                      Drag.hotSpot.y: 36

                      states: [
                          State {
                              when: icon.Drag.active
                              ParentChange {
                                  target: icon
                                  parent: root
                              }

                              AnchorChanges {
                                  target: icon;
                                  anchors.horizontalCenter: undefined;
                                  anchors.verticalCenter: undefined
                              }
                          }
                      ]
                  }

                  DropArea {
                      anchors { fill: parent; margins: 15 }

                      onEntered: visualModel.items.move(drag.source.visualIndex, delegateRoot.visualIndex)
                  }
              }
          }
      }