qtmultimedia/examples/declarative-radio/view.qml

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import QtQuick 2.0
import Qt.multimediakit 4.0

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.isAvailable() ? "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();
                }
            }
        }
    }
}