Qt 5.11 | Qt Multimedia | Declarative Radio Example | view.qml Example File

Qt 5.11.3 Reference Documentation

# view.qml Example File

multimedia/declarative-radio/view.qml

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      import QtQuick 2.0
      import QtMultimedia 5.0

      Rectangle {
          anchors.fill: parent
          id: root
          property int margins: 5
          property int spacing: 10

          QtObject {
              id: d
              property int buttonHeight: root.height > root.width ? root.width / 3 : root.height / 3
              property int buttonWidth: (root.width - spacing * 4) / 4
          }

          Radio {
              id: radio
              band: Radio.FM
          }

          Column {
              anchors.fill: parent
              anchors.margins: root.margins

              Rectangle {
                  color: root.color
                  width: parent.width
                  height: root.height - d.buttonHeight - 40

                  Text {
                      id: freq
                      verticalAlignment: Text.AlignVCenter
                      text: "" + radio.frequency / 1000 + " kHz"
                      anchors {
                          bottom: parent.bottom
                          margins: root.margins
                      }
                  }
                  Text {
                      id: sig
                      anchors {
                          bottom: parent.bottom
                          right: parent.right
                          margins: root.margins

                      }

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

              Row {
                  spacing: 5

                  Rectangle {
                      width: root.width - 10
                      height: 20
                      color: "black"

                      Rectangle {
                          width: 5
                          height: 20
                          color: "red"

                          y: 0
                          x: (parent.width - 5) * ((radio.frequency - radio.minimumFrequency) / (radio.maximumFrequency -
                          radio.minimumFrequency))
                      }
                  }
              }
              Row {
                  spacing: root.spacing
                  Button {
                      text: "Scan Down"
                      onClicked: radio.scanDown()
                  }
                  Button {
                      text: "Freq Down"
                      onClicked: radio.tuneDown()
                  }
                  Button {
                      text: "Freq Up"
                      onClicked: radio.tuneUp()
                  }
                  Button {
                      text: "Scan Up"
                      onClicked: radio.scanUp()
                  }
              }
          }
      }