gridview.qml Example File | Qt Quick 5.9

Qt 5.9 | Qt Quick | Qt Quick Examples - Drag and Drop | gridview.qml Example File

Qt 5.9.2 Reference Documentation

# gridview.qml Example File

draganddrop/views/gridview.qml

      /****************************************************************************
      **
      ** Copyright (C) 2015 The Qt Company Ltd.
      ** Contact: http://www.qt.io/licensing/
      **
      ** This file is part of the examples of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
      ** You may use this file under the terms of the BSD license as follows:
      **
      ** "Redistribution and use in source and binary forms, with or without
      ** modification, are permitted provided that the following conditions are
      ** met:
      **   * Redistributions of source code must retain the above copyright
      **     notice, this list of conditions and the following disclaimer.
      **   * Redistributions in binary form must reproduce the above copyright
      **     notice, this list of conditions and the following disclaimer in
      **     the documentation and/or other materials provided with the
      **     distribution.
      **   * Neither the name of The Qt Company Ltd nor the names of its
      **     contributors may be used to endorse or promote products derived
      **     from this software without specific prior written permission.
      **
      **
      ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
      **
      ** $QT_END_LICENSE$
      **
      ****************************************************************************/

      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)
                  }
              }
          }
      }