int main(int argc, char *argv[])
{
caca_canvas_t *cv, *sprite;
caca_display_t *dp;
cv = caca_create_canvas(80, 24);
if(cv == NULL)
{
printf("Failed to create canvas\n");
return 1;
}
dp = caca_create_display(cv);
if(dp == NULL)
{
printf("Failed to create display\n");
return 1;
}
sprite = caca_create_canvas(0, 0);
caca_set_color_ansi(sprite, CACA_LIGHTRED, CACA_BLACK);
caca_import_canvas_from_memory(sprite, pig, strlen(pig), "text");
caca_set_canvas_handle(sprite, caca_get_canvas_width(sprite) / 2,
caca_get_canvas_height(sprite) / 2);
caca_set_color_ansi(cv, CACA_WHITE, CACA_BLUE);
caca_put_str(cv, 0, 0, "Centered sprite");
caca_blit(cv, caca_get_canvas_width(cv) / 2,
caca_get_canvas_height(cv) / 2, sprite, NULL);
caca_refresh_display(dp);
caca_get_event(dp, CACA_EVENT_KEY_PRESS, NULL, -1);
caca_free_display(dp);
caca_free_canvas(sprite);
caca_free_canvas(cv);
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;
}
JNIEXPORT void JNICALL
Java_org_zoy_caca_Canvas_setHandleXY(JNIEnv *env, jclass cls, jlong ptr, jint x, jint y)
{
caca_set_canvas_handle((caca_canvas_t *)ptr, x, y);
}
