Qt 5.9 | Qt Multimedia | Declarative Radio Example | view.qml Example File

Qt 5.9.9 Reference Documentation

# view.qml Example File

multimedia/declarative-radio/view.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 QtMultimedia 5.0

      Rectangle {
          width: 400; height: 300;

          Radio {
              id: radio
              band: Radio.FM
          }

          Column {
              anchors.fill: parent
              anchors.margins: 5
              spacing: 5

              Row {

                  Text {
                      id: freq

                      width: 150
                      height: 200

                      verticalAlignment: Text.AlignVCenter
                      text: "" + radio.frequency / 1000 + " kHz"
                  }
                  Text {
                      id: sig

                      width: 200
                      height: 200

                      verticalAlignment: Text.AlignVCenter
                      text: (radio.availability == Radio.Available ? "No Signal " : "No Radio Found")
                  }
              }

              Row {
                  spacing: 5

                  Rectangle {
                      width: 350
                      height: 10

                      color: "black"

                      Rectangle {
                          width: 5
                          height: 10
                          color: "red"

                          y: 0
                          x: (parent.width - 5) * ((radio.frequency - radio.minimumFrequency) / (radio.maximumFrequency -
                          radio.minimumFrequency))

                      }
                  }
              }

              Row {
                  spacing: 5

                  Rectangle {
                      id: scanDownButton
                      border.color: "black"
                      border.width: 1
                      radius: 2

                      width: 90
                      height: 40

                      Text {
                          anchors.fill: parent
                          verticalAlignment: Text.AlignVCenter
                          horizontalAlignment: Text.AlignHCenter
                          text: "Scan Down"
                      }

                      MouseArea {
                          anchors.fill: parent
                          onClicked: radio.scanDown();
                      }
                  }
                  Rectangle {
                      id: freqDownButton
                      border.color: "black"
                      border.width: 1
                      radius: 2

                      width: 90
                      height: 40

                      Text {
                          anchors.fill: parent
                          verticalAlignment: Text.AlignVCenter
                          horizontalAlignment: Text.AlignHCenter
                          text: "Freq Down"
                      }

                      MouseArea {
                          anchors.fill: parent
                          onClicked: radio.tuneDown();
                      }
                  }
                  Rectangle {
                      id: freqUpButton
                      border.color: "black"
                      border.width: 1
                      radius: 2

                      width: 90
                      height: 40

                      Text {
                          anchors.fill: parent
                          verticalAlignment: Text.AlignVCenter
                          horizontalAlignment: Text.AlignHCenter
                          text: "Freq Up"
                      }

                      MouseArea {
                          anchors.fill: parent
                          onClicked: radio.tuneUp();
                      }
                  }
                  Rectangle {
                      id: scanUpButton
                      border.color: "black"
                      border.width: 1
                      radius: 2

                      width: 90
                      height: 40

                      Text {
                          anchors.fill: parent
                          verticalAlignment: Text.AlignVCenter
                          horizontalAlignment: Text.AlignHCenter
                          text: "Scan Up"
                      }

                      MouseArea {
                          anchors.fill: parent
                          onClicked: radio.scanUp();
                      }
                  }
              }
          }
      }