Broken sensor face for Plasma 6.1 widget

Help
1

Hi,

I’ve just updated my system to Plasma 6.1 from 5.x (don’t remember, probably the last one). I’m excited about all the new goodness but I can’t get my Panel widgets to work as they did.

Back in 5.x, I’ve created a simple sensor face for “System Monitor Sensor” widget. It was a plain text in compact view (used in panel).

sensorface

Back then, when creating this sensor face, I’d followed this guide: Creating sensor faces | Developer
The QML I used was just:

Faces.SensorFace {
    contentItem: RowLayout {
        Repeater {
            model: controller.highPrioritySensorIds
            delegate: Label {
                text: i18n(sensor.formattedValue)
                Layout.alignment: Qt.AlignHCenter

                Sensors.Sensor {
                    id: sensor
                    sensorId: modelData
                }
            }
        }
    }
}

Unfortunately, it no longer works (nothing gets displayed) in Plasma 6.1.

As a temporary solution, I’ve managed to get the values showing by “adapting” (stripping down) the org.kde.ksysguard.textonly preinstalled sensor face. This is clearly not the proper way to achieve what I intent to (displaying just text value, without any labels), and it does not look good (black bars in the background).

charts

Faces.CompactSensorFace {
    id: root

    contentItem: ChartsControls.LegendLayout {
        Repeater {
            model: root.controller.highPrioritySensorIds

            ChartsControls.LegendDelegate {
                value: sensor.formattedValue

                Sensors.Sensor {
                    id: sensor
                    sensorId: modelData
                    updateRateLimit: root.controller.updateRateLimit
                }
            }
        }
    }
}

I “have to” create the sensor face, because the default org.kde.ksysguard.textonly displays the label and color bar, both of which I don’t need.

textonly

I suspect the solution might be to use another class instead of ChartsControls.LegendLayout. But, even if my assumption is correct, I don’t know which one. Can anyone please help me in getting my text sensors in KDE Plasma 6+ back?

2

It is even worse in light theme.
light

I worked around it by using a color property to match the panel color. I then use a script to discard the inappropriate one when switching Plasma Themes during the day/night.

            ChartsControls.LegendDelegate {
                value: sensor.formattedValue
                color: "#eff0f1" // light
                color: "#2a2e32" // dark

This is still a hack, but is usable.

There was no margin between the top of the panel and widget top.

nomargin

But thanks to the example at KQuickCharts - KQuickCharts I was able to resolve it by adding: anchors.centerIn: parent to ChartsControls.LegendDelegate properties.

It is still created totally not how it should have been (by striping down and background-coloring the chart) but at least it’s usable again.

center
darkChart

I’ll still appreciate the correct approach very much.

3

Still not the correct approach (i.e. still just masking the bar instead of not displaying it in the first place), but a little better. Hopefully, this would help someone. I look on.

Instead of setting the correct value in QML by an external script, I now use QML’s property binding:

color: (Qt.formatTime(new Date(), "hh") > 22) || (Qt.formatTime(new Date(), "hh") < 6) ? "#2a2e32" : "#eff0f1"
4

Oh, even better (but not there yet), there is transparency in QML.

color: "#00000000"