예제 #1
0
파일: text.c 프로젝트: Kirkman/libcaca
int main(int argc, char *argv[])
{
    caca_canvas_t *cv, *pig;
    void *buffer;
    size_t len;
    int i, j;

    pig = caca_create_canvas(0, 0);
    caca_import_canvas_from_memory(pig, STRING, strlen(STRING), "text");

    cv = caca_create_canvas(caca_get_canvas_width(pig) * 2,
                             caca_get_canvas_height(pig) * 2);

    if(cv == NULL || pig == NULL)
    {
        printf("Can't created canvas\n");
        return -1;
    }

    caca_blit(cv, 0, 0, pig, NULL);
    caca_flip(pig);
    caca_blit(cv, caca_get_canvas_width(pig), 0, pig, NULL);
    caca_flip(pig);
    caca_flop(pig);
    caca_blit(cv, 0, caca_get_canvas_height(pig), pig, NULL);
    caca_flop(pig);
    caca_rotate_180(pig);
    caca_blit(cv, caca_get_canvas_width(pig),
                   caca_get_canvas_height(pig), pig, NULL);

    for(j = 0; j < caca_get_canvas_height(cv); j++)
    {
        for(i = 0; i < caca_get_canvas_width(cv); i += 2)
        {
            unsigned long int a;
            caca_set_color_ansi(cv, CACA_LIGHTBLUE + (i + j) % 6,
                                 CACA_DEFAULT);
            a = caca_get_attr(cv, -1, -1);
            caca_put_attr(cv, i, j, a);
            caca_put_attr(cv, i + 1, j, a);
        }
    }

    buffer = caca_export_canvas_to_memory(cv, "utf8", &len);
    fwrite(buffer, len, 1, stdout);
    free(buffer);

    caca_rotate_left(cv);
    buffer = caca_export_canvas_to_memory(cv, "utf8", &len);
    fwrite(buffer, len, 1, stdout);
    free(buffer);

    caca_free_canvas(pig);
    caca_free_canvas(cv);

    return 0;
}
예제 #2
0
파일: figfont.c 프로젝트: HuxyUK/libcaca
/** \brief flush the figlet context */
int caca_flush_figlet(caca_canvas_t *cv)
{
    caca_charfont_t *ff = cv->ff;
    int x, y;

    if (!ff)
        return -1;

    //ff->torender = cv;
    //caca_set_canvas_size(ff->torender, ff->w, ff->h);
    caca_set_canvas_size(cv, ff->w, ff->h);

    /* FIXME: do this somewhere else, or record hardblank positions */
    for(y = 0; y < ff->h; y++)
        for(x = 0; x < ff->w; x++)
            if(caca_get_char(cv, x, y) == 0xa0)
            {
                uint32_t attr = caca_get_attr(cv, x, y);
                caca_put_char(cv, x, y, ' ');
                caca_put_attr(cv, x, y, attr);
            }

    ff->x = ff->y = 0;
    ff->w = ff->h = 0;

    //cv = caca_create_canvas(1, 1); /* XXX */

    /* from render.c */
    ff->lines += caca_get_canvas_height(cv);

    return 0;
}
예제 #3
0
파일: figfont.c 프로젝트: 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;
}
예제 #4
0
JNIEXPORT void JNICALL
Java_org_zoy_caca_Canvas_putCanvasAttribute(JNIEnv *env, jclass cls, jlong ptr,
        jint x, jint y, jint attr)
{
    caca_put_attr((caca_canvas_t *)ptr, x, y, attr);
}