cons/canvas_line: split style in color and symbol
In this way you can choose to apply a color and/or a symbol (t/f/v) to a
line. This patch also changes core/graph to avoid t/f symbols in the
middle of long edges.
cons/canvas_line: fix "reversed" edge
core/graph: center current node when changing function
* r_cons_get_size should return the number of rows, why is there a "-1"?
* the newline at the end of the canvas converted to string (in
r_cons_canvas_to_string) make things shift up one line
* r_cons_canvas_write should consider "left" (which is the number of
chars available from x until the right side of the screen) and not
"left - 1". Moreover, since "slen" is at most the maximum number of
characters that we can print in that row, there is no need to check
if we can write those bytes
* r_cons_flush usually add a newline, but we shouldn't print it because
otherwise everything will shift up by one line
some lines can seem empty because what we want to write was cropped, but
this shouldn't deny the next lines, that can be longer and so, still
visible, to be printed.
started on cons_canvas color support. Still a bit buggy, working out the kinks.
Yanked my old line drawing algo from ward, still working on colors.
Still incomplete, Changed the way that attributes work, still lots of strange behavior, It appears that most attributes aren't where they belong.
still not finished. Ok now the lines and colors are working, but the colors are overwriting other sections. Working on preventing that.
colors are now working, but they are _so. slow._
woops, removed the debugging printf
Figured out the big evil function that has to be optimized, attr_at takes aprox 91% of the cpu, so he needs to be fixed
Signed-off-by: r0nk <r00nk@simplecpu.com>
Signed-off-by: r0nk <r00nk@simplecpu.com>
