a_sprite *
compile_sprtext (const a_fontdata *font, const char *text,
enum text_option topt, unsigned int maxwidth,
int offset)
{
unsigned int nspaces;
unsigned int text_width = 0;
check_message_is_drawable (font, text);
if (topt & T_FLUSHED_LEFT) { /* FLUSHED_LEFT or JUSTIFIED */
if (topt & T_FLUSHED_RIGHT) { /* JUSTIFIED */
text_width = compute_text_width (font, text, &nspaces);
if (nspaces == 0) { /* we cannot justify a text without spaces */
topt &= ~T_JUSTIFIED;
topt |= T_FLUSHED_LEFT;
}
}
} else { /* FLUSHED_RIGHT or CENTERED */
text_width = compute_text_width (font, text, 0);
if (topt & T_FLUSHED_RIGHT) /* FLUSHED_RIGHT */
offset -= (int) text_width;
else /* CENTERED */
offset -= (int) text_width/2;
}
new_sprprog ();
for (; *text; ++text) {
if (*text == ' ') {
if ((topt & T_JUSTIFIED) == T_JUSTIFIED) {
unsigned int off = (maxwidth - text_width) / nspaces;
offset += off;
text_width += off;
--nspaces;
} else
offset += font->width[' '];
} else {
/* ensure that the letter actually exists before drawing it */
if (font->width[UCHAR (*text)])
add_sprprog (compile_sprrle (font->upper_left[UCHAR (*text)], 0,
font->height, font->width[UCHAR (*text)],
font->line_size, xbuf),
offset);
offset += font->width[UCHAR (*text)];
}
}
if (topt & T_WAVING)
return end_sprprogwav ();
else
return end_sprprog ();
}
static a_sprite *
get_tile_sprite (unsigned int offset)
{
/* convert an offset-in-image, into a tile-number */
int tile_row = offset / (tile_set_img.width * 20);
int tile_col = (offset % (tile_set_img.width * 20)) / 24;
int tile_pos = tile_row * (tile_set_img.width / 24) + tile_col;
/* don't recompile the sprite if it's already done */
if (!tile_transp[tile_pos])
tile_transp[tile_pos] =
compile_sprrle (tile_set_img.buffer + offset, 0, 20, 24,
tile_set_img.width, xbuf);
return tile_transp[tile_pos];
}
