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path: root/keyboards/crkbd/keymaps/jpe230/oled/rp2040/master/oled_master_handler.c
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// Copyright 2022 Jose Pablo Ramirez (@jpe230)
// SPDX-License-Identifier: GPL-2.0-or-later

#include "jpe230.h"
#include "indicators.h"

extern uint8_t logged_row, logged_col;
extern uint32_t oled_timer;
extern const uint8_t key_frame[4];

static uint32_t frame_limiter;

void oled_render_layer_state(void) {
    int current_layer_idx = get_highest_layer(layer_state | default_layer_state);
    static int current_frame = 0;
    static bool first_run = 1;

    if(first_run){
        first_run = 0;
        char clear[ANIM_SIZE] = {0};
        memset(clear, 0, ANIM_SIZE);
        oled_write_raw_P(clear, ANIM_SIZE);
        frame_limiter = timer_read();
        return;
    }

    if (timer_elapsed(frame_limiter) < 12) {
        return;
    }

    frame_limiter = timer_read();

    if(current_frame < key_frame[current_layer_idx]){
        current_frame = (current_frame + 1) % IDLE_FRAMES;
        change_frame_up(current_frame);
    }else  if(current_frame > key_frame[current_layer_idx]) {
        current_frame = (current_frame - 1) % IDLE_FRAMES;
        change_frame_down(IDLE_FRAMES - current_frame - 1);
    }

}

void render_master_oled(void) {
    if (timer_elapsed32(oled_timer) > CUSTOM_OLED_TIMEOUT) {
        oled_off();
        return;
    }

    oled_on();

    /* Render the layar state */
    oled_render_layer_state();

    /* Move cursor bellow the graphic */
    oled_set_cursor(0, 12);

    /* Print logged col and row
     * Format: 00x00
     */
    char logged_matrix[9] = {0};
    sprintf(logged_matrix, "%02dx%02d", logged_col, logged_row);

    /* Write a separator char: ◆,
     * make sure to add a NULL terminator otherwise strlen could fail
     */
    static const char PROGMEM separator[] = {4, 4, 4, 4, 4, 0};
    oled_write(separator, false);

    /* Write logged matrix position */
    oled_write(logged_matrix, false);

    /* Write another separator */
    oled_write(separator, false);

    /* Write scanrate */
    oled_write(get_u16_str(get_matrix_scan_rate(), ' '), false);
}

oled_rotation_t rotate_master(oled_rotation_t rotation) {return OLED_ROTATION_270;}