main.c

#include <stdio.h>
#include <signal.h>
#include <locale.h>
#include <wchar.h>

#include "lib/bdf.h"
#include "lib/calendar.h"

#ifdef EPD
#include "lib/epd/ER-EPD0583-1.h"
#include "lib/epd/GUI_Paint.h"
#endif

bool g_running = true;

void signal_handler(int signo) {
    g_running = false;
}

int main() {
    /**
     * Init
     */

    // disable locale specific string handling
    // enables UTF-8 to multi-byte handling
    setlocale(LC_ALL, "");

    // If this fails, your current locale does not support UTF-8.
    // If you're /really/ fine with just ASCII, just remove this test.
    // If you SSH onto the system, and have disabled PAM, the locale config will not be respected.
    // You will want the values shown by `locale` to end in .UTF-8
    assert(MB_CUR_MAX == 6);

    signal(SIGINT, signal_handler);

#ifdef BDF_TEST
    int scale = 1;
    bdf_t *cozette = bdf_read("./fonts/cozette.bdf", scale);
    bdf_t *lode_sans = bdf_read("./fonts/LodeSans-15.bdf", scale);
    bdf_t *kakwafont = bdf_read("./fonts/kakwafont-12-n.bdf", scale);
    bdf_t *scientifica = bdf_read("./fonts/scientifica-11.bdf", scale);
    bdf_t *gohufont = bdf_read("./fonts/gohufont-uni-14.bdf", scale);
    bdf_t *siji = bdf_read("./fonts/siji.bdf", scale);
    bdf_t *ctrld_13 = bdf_read("./fonts/ctrld-fixed-13r.bdf", scale);
    bdf_t *ctrld_16 = bdf_read("./fonts/ctrld-fixed-16r.bdf", scale);
#endif

#ifdef EPD_TEST
    bdf_t *font = bdf_read("./fonts/cozette.bdf", 2);
#endif

#ifdef GAPI
    assert(create_session() == I_OK);

    init_google_calendar();
#endif

#ifdef EPD
    init_calendar();

    assert(DEV_Module_Init() == 0);

    EPD_0583_1_Init();

    EPD_0583_1_Clear();

    DEV_Delay_ms(500);

    UBYTE *image_black, *image_red;
    UWORD image_size = ((EPD_0583_1_WIDTH % 8 == 0) ? (EPD_0583_1_WIDTH / 8) : (EPD_0583_1_WIDTH / 8 + 1)) * EPD_0583_1_HEIGHT;

    image_black = malloc(image_size);
    assert(image_black != NULL);

    image_red = malloc(image_size);
    assert(image_red != NULL);

    Paint_NewImage(image_black, EPD_0583_1_WIDTH, EPD_0583_1_HEIGHT, ROTATE_180, WHITE);
    Paint_NewImage(image_red, EPD_0583_1_WIDTH, EPD_0583_1_HEIGHT, ROTATE_180, WHITE);
#endif

    /**
     * Main
     */

#ifdef GAPI_TEST
    json_t *j_resp = api_request("https://www.googleapis.com/calendar/v3/users/me/settings");
    if (j_resp != NULL) {
        JSON_DEBUG(j_resp);
        json_decref(j_resp);
    }
#endif

#ifdef BDF_TEST
    puts("");
    printf("cozette: %ld characters, %hhd pt, bounds: %hhu %hhu %hhd %hhd\n", cozette->numChars, cozette->size, cozette->width, cozette->height, cozette->offsetX, cozette->offsetY);
    puts("");

    for (int i = 0; i < 250; ++i) {
        bdf_print_bitmap(cozette, &cozette->characters[i]);
        puts("");
    }

    bdf_print_bitmap(cozette, bdf_get_bitmap(cozette, 1033));

#ifdef EPD_TEST
    bdf_t *fonts[] = {cozette, lode_sans, kakwafont, scientifica, gohufont, siji, ctrld_13, ctrld_16};
    for (int i = 0; i < 8; ++i) {
        bdf_t *font = fonts[i];

        // Draw black image
        Paint_SelectImage(image_black);
        Paint_Clear(WHITE);

        printf("Showing %s\n", font->familyName);

        Paint_DrawCharmap(10, 10, font, 0, BLACK, WHITE);

        // Draw red picture
        Paint_SelectImage(image_red);
        Paint_Clear(WHITE);

        EPD_0583_1_Display(image_black, image_red);
        DEV_Delay_ms(30000);

    }
#endif
#endif

#ifdef EPD
    while (g_running) {
        draw_calendar(image_black, image_red);

#ifdef GAPI
        load_events();

        draw_events(image_black, image_red);
#endif

        EPD_0583_1_Display(image_black, image_red);
        DEV_Delay_ms(30 * 60 * 1000 /* 30 minutes */);
    }
#endif

#ifdef EPD_TEST
    // Draw black image
    Paint_SelectImage(image_black);
    Paint_Clear(WHITE);

    Paint_DrawPoint(25, 50, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
    Paint_DrawPoint(25, 70, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
    Paint_DrawPoint(25, 90, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
    Paint_DrawPoint(25, 110, BLACK, DOT_PIXEL_4X4, DOT_STYLE_DFT);

    Paint_DrawLine(50, 50, 150, 150, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
    Paint_DrawLine(150, 50, 50, 150, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
    Paint_DrawLine(100, 200, 100, 300, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
    Paint_DrawLine(50, 250, 150, 250, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);

    Paint_DrawString(350, 10, "abcdefghijklmnopqrstuvwxyz\nABCDEFGHIJKLMNOPQRSTUVWXYZ", font, BLACK, WHITE);
    Paint_DrawString(10, 335, "testing the black cozette", font, BLACK, WHITE);

    // Draw red picture
    Paint_SelectImage(image_red);
    Paint_Clear(WHITE);

    Paint_DrawRectangle(50, 50, 150, 150, RED, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
    Paint_DrawRectangle(200, 50, 300, 150, RED, DOT_PIXEL_1X1, DRAW_FILL_FULL);

    Paint_DrawCircle(100, 250, 50, RED, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
    Paint_DrawCircle(250, 250, 50, RED, DOT_PIXEL_1X1, DRAW_FILL_FULL);

    Paint_DrawString(10, 310, "hello! e-paper", font, WHITE, RED);
    Paint_DrawString(10, 360, "0123456789", font, RED, WHITE);

    EPD_0583_1_Display(image_black, image_red);
    DEV_Delay_ms(3000);
#endif

    /**
     * Cleanup
     */

#ifdef EPD
    destroy_calendar();

    EPD_0583_1_Clear();

    EPD_0583_1_Sleep();

    free(image_red);
    free(image_black);

    DEV_Module_Exit();
#endif

#ifdef GAPI
    destroy_google_calendar();

    close_session();
#endif

#ifdef BDF_TEST
    bdf_free(cozette);
    bdf_free(lode_sans);
    bdf_free(kakwafont);
    bdf_free(scientifica);
    bdf_free(gohufont);
    bdf_free(siji);
    bdf_free(ctrld_13);
    bdf_free(ctrld_16);
#endif

    return 0;
}