change-width

wayland/wio-terminal-bar-chart/change-width

Change the width of the bar identified by Index. See patch: 05-example.
change-width
@/change-width
Change the width of the bar identified by Index. See patch: 05-example.
BChart@/bar-chart
A bar-chart object.
Indexbyte
Index of bar (first bar is indexed as 1).
Widthnumber
Relative width of bar.
UPDpulse
Update.
change-width
BChart
Index
Width
UPD
Done
Donepulse
Pulse on completion.
To use the node in your project you should have the wayland/wio-terminal-bar-chart library installed. Use the “File → Add Library” menu item in XOD IDE if you don’t have it yet. See Using libraries for more info.

C++ implementation

#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_UPD

node {
    void evaluate(Context ctx) {
        // The node responds only if there is an input pulse
        if (!isInputDirty<input_UPD>(ctx))
            return;

        // Get a pointer to the `TFT_eSPI tft` class instance
        auto barchart = getValue<input_BChart>(ctx);

        uint8_t idx = getValue<input_Index>(ctx);
        uint32_t width = getValue<input_Width>(ctx);

        barchart -> changeWidth(idx, width);

        emitValue<output_Done>(ctx, 1);
    }
}