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;
}
/** \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;
}
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;
}
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);
}