Qt 5.9 | Qt Quick | TabWidget Example | TabWidget.qml Example File

Qt 5.9.9 Reference Documentation

# TabWidget.qml Example File

customitems/tabwidget/TabWidget.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

      Item {
          id: tabWidget

          // Setting the default property to stack.children means any child items
          // of the TabWidget are actually added to the 'stack' item's children.
          // See the "Property Binding"
          // documentation for details on default properties.
          default property alias content: stack.children

          property int current: 0

          onCurrentChanged: setOpacities()
          Component.onCompleted: setOpacities()

          function setOpacities() {
              for (var i = 0; i < stack.children.length; ++i) {
                  stack.children[i].opacity = (i == current ? 1 : 0)
              }
          }

          Row {
              id: header

              Repeater {
                  model: stack.children.length
                  delegate: Rectangle {
                      width: tabWidget.width / stack.children.length; height: 36

                      Rectangle {
                          width: parent.width; height: 1
                          anchors { bottom: parent.bottom; bottomMargin: 1 }
                          color: "#acb2c2"
                      }
                      BorderImage {
                          anchors { fill: parent; leftMargin: 2; topMargin: 5; rightMargin: 1 }
                          border { left: 7; right: 7 }
                          source: "tab.png"
                          visible: tabWidget.current == index
                      }
                      Text {
                          horizontalAlignment: Qt.AlignHCenter; verticalAlignment: Qt.AlignVCenter
                          anchors.fill: parent
                          text: stack.children[index].title
                          elide: Text.ElideRight
                          font.bold: tabWidget.current == index
                      }
                      MouseArea {
                          anchors.fill: parent
                          onClicked: tabWidget.current = index
                      }
                  }
              }
          }

          Item {
              id: stack
              width: tabWidget.width
              anchors.top: header.bottom; anchors.bottom: tabWidget.bottom
          }
      }