[Docs] Add examples to RGB Matrix Indicators docs (#12797)

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Drashna Jaelre 2021-08-26 13:41:33 -07:00 committed by GitHub
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@ -741,3 +741,42 @@ void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
} }
} }
``` ```
#### Examples :id=indicator-examples
This example sets the modifiers to be a specific color based on the layer state. You can use a switch case here, instead, if you would like. This uses HSV and then converts to RGB, because this allows the brightness to be limited (important when using the WS2812 driver).
```c
void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
HSV hsv = {0, 255, 255};
if (layer_state_is(layer_state, 2)) {
hsv = {130, 255, 255};
} else {
hsv = {30, 255, 255};
}
if (hsv.v > rgb_matrix_get_val()) {
hsv.v = rgb_matrix_get_val();
}
RGB rgb = hsv_to_rgb(hsv);
for (uint8_t i = led_min; i <= led_max; i++) {
if (HAS_FLAGS(g_led_config.flags[i], 0x01)) { // 0x01 == LED_FLAG_MODIFIER
rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
}
}
}
```
If you want to indicate a Host LED status (caps lock, num lock, etc), you can use something like this to light up the caps lock key:
```c
void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
if (host_keyboard_led_state().caps_lock) {
RGB_MATRIX_INDICATOR_SET_COLOR(5, 255, 255, 255); // assuming caps lock is at led #5
} else {
RGB_MATRIX_INDICATOR_SET_COLOR(5, 0, 0, 0);
}
}
```