draw-rectangle
wayland/arduino-tvout/draw-rectangle
Draw a rectangle at X, Y with a specified width and height.
draw-rectangle
@/draw-rectangle
Draw a rectangle at X, Y with a specified width and height.
DEV@/tvout-device
A tvout device.
Xnumber
The x coordinate of upper left corner of the rectangle.
Ynumber
The y coordinate of upper left corner of the rectangle.
Wnumber
The width of the rectangle.
Hnumber
The height of the rectangle.
COLORnumber
The color of the rectangle. Options:
0 = black;
1 = white;
2 = invert.
FILLnumber
Rectangle will be filled with this color. Options:
-1 = no fill;
0 = black;
1 = white;
2 = invert.
UPDpulse
Update. Triggers draw circle.
DONEpulse
Pulse on completion.
C++ implementation
struct State {
};
{{ GENERATED_CODE }}
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 `TVout` class instance
auto tv = getValue<input_DEV>(ctx);
uint8_t x = getValue<input_X>(ctx);
uint8_t y = getValue<input_Y>(ctx);
uint8_t w = getValue<input_W>(ctx);
uint8_t h = getValue<input_H>(ctx);
char color = getValue<input_COLOR>(ctx);
char fill = getValue<input_FILL>(ctx);
tv->draw_rect(x, y, w, h, color, fill);
emitValue<output_DONE>(ctx, 1);
}