ParallaxView.qml Example File | Qt Quick 5.9

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

Qt 5.9.9 Reference Documentation

# ParallaxView.qml Example File

views/parallax/content/ParallaxView.qml

      /****************************************************************************
      **
      ** Copyright (C) 2017 The Qt Company Ltd.
      ** Contact: https://www.qt.io/licensing/
      **
      ** This file is part of the examples of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
      ** 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 https://www.qt.io/terms-conditions. For further
      ** information use the contact form at https://www.qt.io/contact-us.
      **
      ** BSD License Usage
      ** Alternatively, 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

      Item {
          id: root

          property alias background: background.source
          property int currentIndex: 0
          default property alias content: visualModel.children

          Image {
              id: background
              fillMode: Image.TileHorizontally
              x: -list.contentX / 2
              width: Math.max(list.contentWidth, parent.width)
          }

          ListView {
              id: list
              anchors.fill: parent

              currentIndex: root.currentIndex
              onCurrentIndexChanged: root.currentIndex = currentIndex

              orientation: Qt.Horizontal
              boundsBehavior: Flickable.DragOverBounds
              model: ObjectModel { id: visualModel }

              highlightRangeMode: ListView.StrictlyEnforceRange
              snapMode: ListView.SnapOneItem
          }

          ListView {
              id: selector

              height: 50
              anchors.bottom: parent.bottom
              anchors.horizontalCenter: parent.horizontalCenter
              width: Math.min(count * 50, parent.width - 20)
              interactive: width == parent.width - 20
              orientation: Qt.Horizontal

              currentIndex: root.currentIndex
              onCurrentIndexChanged: root.currentIndex = currentIndex

              model: visualModel.children
              delegate: Item {
                  width: 50; height: 50
                  id: delegateRoot

                  Image {
                      id: image
                      source: modelData.icon
                      scale: 0.8
                  }

                  MouseArea {
                      anchors.fill: parent
                      onClicked: { root.currentIndex = index }
                  }

                  states: State {
                      name: "Selected"
                      when: delegateRoot.ListView.isCurrentItem == true
                      PropertyChanges {
                          target: image
                          scale: 1
                          y: -5
                      }
                  }
                  transitions: Transition {
                      NumberAnimation { properties: "scale,y" }
                  }
              }

              Rectangle {
                  color: "#60FFFFFF"
                  x: -10; y: -10; z: -1
                  width: parent.width + 20; height: parent.height + 20
                  radius: 10
              }
          }
      }