示例#1
0
static int feed_tiny(context_t *cx, uint32_t ch, uint32_t attr)
{
    switch(ch)
    {
        case (uint32_t)'\r':
            return 0;
        case (uint32_t)'\n':
            cx->x = 0;
            cx->y++;
            return 0;
        case (uint32_t)'\t':
            cx->x = (cx->x & ~7) + 8;
            return 0;
    }

    /* Check whether we reached the end of the screen */
    if(cx->x && cx->x + 1 > cx->term_width)
    {
        cx->x = 0;
        cx->y++;
    }

    /* Check whether the current canvas is large enough */
    if(cx->x + 1 > cx->w)
    {
        cx->w = cx->x + 1 < cx->term_width ? cx->x + 1 : cx->term_width;
        if(cx->w > cx->ew)
            cx->ew = cx->ew + cx->ew / 2;
    }

    if(cx->y + 1 > cx->h)
    {
        cx->h = cx->y + 1;
        if(cx->h > cx->eh)
            cx->eh = cx->eh + cx->eh / 2;
    }

    caca_set_attr(cx->cv, attr);
    caca_set_canvas_size(cx->cv, cx->ew, cx->eh);

    caca_put_char(cx->cv, cx->x, cx->y, ch);
    cx->x++;

    return 0;
}
示例#2
0
文件: figfont.c 项目: HuxyUK/libcaca
/** \brief paste a character using the current figfont */
int caca_put_figchar(caca_canvas_t *cv, uint32_t ch)
{
    caca_charfont_t *ff = cv->ff;
    int c, w, h, x, y, overlap, extra, xleft, xright;

    if (!ff)
        return -1;

    switch(ch)
    {
        case (uint32_t)'\r':
            return 0;
        case (uint32_t)'\n':
            ff->x = 0;
            ff->y += ff->height;
            return 0;
        /* FIXME: handle '\t' */
    }

    /* Look whether our glyph is available */
    for(c = 0; c < ff->glyphs; c++)
        if(ff->lookup[c * 2] == ch)
            break;

    if(c == ff->glyphs)
        return 0;

    w = ff->lookup[c * 2 + 1];
    h = ff->height;

    caca_set_canvas_handle(ff->fontcv, 0, c * ff->height);
    caca_blit(ff->charcv, 0, 0, ff->fontcv, NULL);

    /* Check whether we reached the end of the screen */
    if(ff->x && ff->x + w > ff->term_width)
    {
        ff->x = 0;
        ff->y += h;
    }

    /* Compute how much the next character will overlap */
    switch(ff->hmode)
    {
    case H_SMUSH:
    case H_KERN:
    case H_OVERLAP:
        extra = (ff->hmode == H_OVERLAP);
        overlap = w;
        for(y = 0; y < h; y++)
        {
            /* Compute how much spaces we can eat from the new glyph */
            for(xright = 0; xright < overlap; xright++)
                if(caca_get_char(ff->charcv, xright, y) != ' ')
                    break;

            /* Compute how much spaces we can eat from the previous glyph */
            for(xleft = 0; xright + xleft < overlap && xleft < ff->x; xleft++)
                if(caca_get_char(cv, ff->x - 1 - xleft, ff->y + y) != ' ')
                    break;

            /* Handle overlapping */
            if(ff->hmode == H_OVERLAP && xleft < ff->x)
                xleft++;

            /* Handle smushing */
            if(ff->hmode == H_SMUSH)
            {
                if(xleft < ff->x &&
                    hsmush(caca_get_char(cv, ff->x - 1 - xleft, ff->y + y),
                          caca_get_char(ff->charcv, xright, y),
                          ff->hsmushrule))
                    xleft++;
            }

            if(xleft + xright < overlap)
                overlap = xleft + xright;
        }
        break;
    case H_NONE:
        overlap = 0;
        break;
    default:
        return -1;
    }

    /* Check whether the current canvas is large enough */
    if(ff->x + w - overlap > ff->w)
        ff->w = ff->x + w - overlap < ff->term_width
              ? ff->x + w - overlap : ff->term_width;

    if(ff->y + h > ff->h)
        ff->h = ff->y + h;

#if 0 /* deactivated for libcaca insertion */
    if(attr)
        caca_set_attr(cv, attr);
#endif
    caca_set_canvas_size(cv, ff->w, ff->h);

    /* Render our char (FIXME: create a rect-aware caca_blit_canvas?) */
    for(y = 0; y < h; y++)
        for(x = 0; x < w; x++)
    {
        uint32_t ch1, ch2;
        uint32_t tmpat = caca_get_attr(ff->fontcv, x, y + c * ff->height);
        ch2 = caca_get_char(ff->charcv, x, y);
        if(ch2 == ' ')
            continue;
        ch1 = caca_get_char(cv, ff->x + x - overlap, ff->y + y);
        if(ch1 == ' ' || ff->hmode != H_SMUSH)
            caca_put_char(cv, ff->x + x - overlap, ff->y + y, ch2);
        else
            caca_put_char(cv, ff->x + x - overlap, ff->y + y,
                           hsmush(ch1, ch2, ff->hsmushrule));
        caca_put_attr(cv, ff->x + x, ff->y + y, tmpat);
    }

    /* Advance cursor */
    ff->x += w - overlap;

    return 0;
}
示例#3
0
文件: export.c 项目: gitpan/Term-Caca
int main(int argc, char *argv[])
{
    caca_canvas_t *cv;
    caca_dither_t *dither;
    void *buffer;
    char *file, *format;
    char const * const * exports, * const * p;
    size_t len;
    int x, y;

    exports = caca_get_export_list();

    if(argc < 2 || argc > 3)
    {
        fprintf(stderr, "%s: wrong argument count\n", argv[0]);
        fprintf(stderr, "usage: %s [file] <format>\n", argv[0]);
        fprintf(stderr, "where <format> is one of:\n");
        for(p = exports; *p; p += 2)
            fprintf(stderr, " \"%s\" (%s)\n", *p, *(p + 1));
        exit(-1);
    }

    if(argc == 2)
    {
        file = NULL;
        format = argv[1];
    }
    else
    {
        file = argv[1];
        format = argv[2];
    }

    for(p = exports; *p; p += 2)
        if(!strcasecmp(format, *p))
            break;

    if(!*p)
    {
        fprintf(stderr, "%s: unknown format `%s'\n", argv[0], format);
        fprintf(stderr, "please use one of:\n");
        for(p = exports; *p; p += 2)
            fprintf(stderr, " \"%s\" (%s)\n", *p, *(p + 1));
        exit(-1);
    }

    if(file)
    {
        cv = caca_create_canvas(0, 0);
        if(caca_import_canvas_from_file(cv, file, "") < 0)
        {
            fprintf(stderr, "%s: `%s' has unknown format\n", argv[0], file);
            exit(-1);
        }
    }
    else
    {
        cv = caca_create_canvas(WIDTH, HEIGHT);

        for(y = 0; y < 256; y++)
        {
            for(x = 0; x < 256; x++)
            {
                uint32_t r = x;
                uint32_t g = (255 - y + x) / 2;
                uint32_t b = y * (255 - x) / 256;
                pixels[y * 256 + x] = (r << 16) | (g << 8) | (b << 0);
            }
        }

        dither = caca_create_dither(32, 256, 256, 4 * 256,
                                     0x00ff0000, 0x0000ff00, 0x000000ff, 0x0);
        if(!strcmp(format, "ansi") || !strcmp(format, "utf8"))
            caca_set_dither_charset(dither, "shades");
        caca_dither_bitmap(cv, 0, 0, caca_get_canvas_width(cv),
                            caca_get_canvas_height(cv), dither, pixels);
        caca_free_dither(dither);

        caca_set_color_ansi(cv, CACA_WHITE, CACA_BLACK);
        caca_draw_thin_box(cv, 0, 0, WIDTH - 1, HEIGHT - 1);

        caca_set_color_ansi(cv, CACA_BLACK, CACA_WHITE);
        caca_fill_ellipse(cv, WIDTH / 2, HEIGHT / 2,
                               WIDTH / 4, HEIGHT / 4, ' ');

        caca_set_color_ansi(cv, CACA_LIGHTGRAY, CACA_BLACK);
        caca_put_str(cv, WIDTH / 2 - 12, HEIGHT / 2 - 6,
                      "   lightgray on black   ");
        caca_set_color_ansi(cv, CACA_DEFAULT, CACA_TRANSPARENT);
        caca_put_str(cv, WIDTH / 2 - 12, HEIGHT / 2 - 5,
                      " default on transparent ");
        caca_set_color_ansi(cv, CACA_BLACK, CACA_WHITE);
        caca_put_str(cv, WIDTH / 2 - 12, HEIGHT / 2 - 4,
                      "     black on white     ");

        caca_set_color_ansi(cv, CACA_BLACK, CACA_WHITE);
        caca_put_str(cv, WIDTH / 2 - 8, HEIGHT / 2 - 3, "[<><><><> <>--<>]");
        caca_put_str(cv, WIDTH / 2 - 8, HEIGHT / 2 - 2, "[ドラゴン ボーレ]");
        caca_put_str(cv, WIDTH / 2 - 7, HEIGHT / 2 + 2, "äβç ░▒▓█▓▒░ ΔЗҒ");
        caca_put_str(cv, WIDTH / 2 - 5, HEIGHT / 2 + 4, "(\") \\o/ <&>");

        caca_set_attr(cv, CACA_BOLD);
        caca_put_str(cv, WIDTH / 2 - 16, HEIGHT / 2 + 3, "Bold");
        caca_set_attr(cv, CACA_BLINK);
        caca_put_str(cv, WIDTH / 2 - 9, HEIGHT / 2 + 3, "Blink");
        caca_set_attr(cv, CACA_ITALICS);
        caca_put_str(cv, WIDTH / 2 - 1, HEIGHT / 2 + 3, "Italics");
        caca_set_attr(cv, CACA_UNDERLINE);
        caca_put_str(cv, WIDTH / 2 + 8, HEIGHT / 2 + 3, "Underline");
        caca_set_attr(cv, 0);

        caca_set_color_ansi(cv, CACA_WHITE, CACA_LIGHTBLUE);
        caca_put_str(cv, WIDTH / 2 - 7, HEIGHT / 2, "    LIBCACA    ");

        for(x = 0; x < 16; x++)
        {
            caca_set_color_argb(cv, 0xff00 | x, 0xf00f | (x << 4));
            caca_put_char(cv, WIDTH / 2 - 7 + x, HEIGHT / 2 + 6, '#');
        }
    }

    buffer = caca_export_canvas_to_memory(cv, format, &len);
    fwrite(buffer, len, 1, stdout);
    free(buffer);

    caca_free_canvas(cv);

    return 0;
}
示例#4
0
JNIEXPORT void JNICALL
Java_org_zoy_caca_Canvas_setCanvasAttribute(JNIEnv *env, jclass cls, jlong ptr, jint attr)
{
    caca_set_attr((caca_canvas_t *)ptr, attr);
}