enlightenment/terminology
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terminology
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reflow: expand screen 

Refs: #1184
This commit is contained in:
Boris Faure 2013-03-10 19:09:45 +01:00
parent 9511fe6f01
commit 8208428e89
1 changed files with 101 additions and 0 deletions
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101
src/bin/termpty.c
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@ -469,6 +469,93 @@ termpty_write(Termpty *ty, const char *input, int len)
if (write(ty->fd, input, len) < 0) ERR("write %s", strerror(errno));
}
static void
_termpty_horizontally_expand(Termpty *ty, int old_w, int old_h,
Termcell *old_screen, Termcell *old_screen2)
{
int old_y,
old_x,
old_circular_offset = ty->circular_offset,
x = 0,
y = 0;
Eina_Bool rewrapping = EINA_FALSE;
if (ty->altbuf)
return;
ty->circular_offset = 0;
/* TODO:
* backscroll
* change of height (handle later?)
* double-width :)
* remove empty lines created because of reflowing
*/
#define OLD_SCREEN(_X, _Y) \
old_screen[_X + (((_Y + old_circular_offset) % old_h) * old_w)]
for (old_y = 0; old_y < old_h; old_y++)
{
if (rewrapping)
{
int remaining_width = ty->w - x,
len = old_w;
old_x = 0;
if (old_w >= remaining_width)
{
/* TODO: use termpty_cell_copy */
memcpy(ty->screen + (y * ty->w) + x,
&OLD_SCREEN(0, old_y),
remaining_width * sizeof(Termcell));
TERMPTY_SCREEN(ty, ty->w - 1, y).att.autowrapped = 1;
y++;
x = 0;
old_x = remaining_width;
len -= remaining_width;
}
if (len)
{
/* TODO: use termpty_cell_copy */
memcpy(ty->screen + (y * ty->w) + x,
&OLD_SCREEN(old_x, old_y),
len * sizeof(Termcell));
x += len;
TERMPTY_SCREEN(ty, x - 1, y).att.autowrapped = 0;
}
rewrapping = OLD_SCREEN(old_w - 1, old_y).att.autowrapped;
if (!rewrapping)
y++;
}
else
{
/* TODO: use termpty_cell_copy */
memcpy(ty->screen + (y * ty->w),
&OLD_SCREEN(0, old_y),
old_w * sizeof(Termcell));
if (OLD_SCREEN(old_w - 1, old_y).att.autowrapped)
{
rewrapping = EINA_TRUE;
TERMPTY_SCREEN(ty, old_w - 1, old_y).att.autowrapped = 0;
x = old_w;
}
else
{
y++;
}
}
}
#undef OLD_SCREEN
}
static void
_termpty_horizontally_shrink(Termpty *ty, int oldw, int oldh,
Termcell *oldscreen, Termcell *oldscreen2)
{
/* TODO */
}
void
termpty_resize(Termpty *ty, int w, int h)
{
@ -503,6 +590,20 @@ termpty_resize(Termpty *ty, int w, int h)
ww = ty->w;
hh = ty->h;
if (oldh == ty->h && oldw != ty->w)
{
if (ty->w > oldw)
{
_termpty_horizontally_expand(ty, oldw, oldh, olds, olds2);
return;
}
else
{
_termpty_horizontally_shrink(ty, oldw, oldh, olds, olds2);
}
}
if (ww > oldw) ww = oldw;
if (hh > oldh) hh = oldh;