void
window_copy_scroll_down(struct window_pane *wp, u_int ny)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
struct screen_write_ctx ctx;
if (ny > screen_hsize(&wp->base))
return;
if (data->oy > screen_hsize(&wp->base) - ny)
ny = screen_hsize(&wp->base) - data->oy;
if (ny == 0)
return;
data->oy += ny;
screen_write_start(&ctx, wp, NULL);
screen_write_cursormove(&ctx, 0, 0);
screen_write_insertline(&ctx, ny);
window_copy_write_lines(wp, &ctx, 0, ny);
if (s->sel.flag && screen_size_y(s) > ny) {
window_copy_update_selection(wp);
window_copy_write_line(wp, &ctx, ny);
} else if (ny == 1) /* nuke position */
window_copy_write_line(wp, &ctx, 1);
screen_write_cursormove(&ctx, data->cx, data->cy);
window_copy_update_selection(wp);
screen_write_stop(&ctx);
}
void
window_copy_scroll_up(struct window_pane *wp, u_int ny)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
struct screen_write_ctx ctx;
if (data->oy < ny)
ny = data->oy;
if (ny == 0)
return;
data->oy -= ny;
screen_write_start(&ctx, wp, NULL);
screen_write_cursormove(&ctx, 0, 0);
screen_write_deleteline(&ctx, ny);
window_copy_write_lines(wp, &ctx, screen_size_y(s) - ny, ny);
window_copy_write_line(wp, &ctx, 0);
if (screen_size_y(s) > 1)
window_copy_write_line(wp, &ctx, 1);
if (screen_size_y(s) > 3)
window_copy_write_line(wp, &ctx, screen_size_y(s) - 2);
if (s->sel.flag && screen_size_y(s) > ny) {
window_copy_update_selection(wp);
window_copy_write_line(wp, &ctx, screen_size_y(s) - ny - 1);
}
screen_write_cursormove(&ctx, data->cx, data->cy);
window_copy_update_selection(wp);
screen_write_stop(&ctx);
}
void
window_copy_write_lines(
struct window_pane *wp, struct screen_write_ctx *ctx, u_int py, u_int ny)
{
u_int yy;
for (yy = py; yy < py + ny; yy++)
window_copy_write_line(wp, ctx, py);
}
struct screen *
window_copy_init(struct window_pane *wp)
{
struct window_copy_mode_data *data;
struct screen *s;
struct screen_write_ctx ctx;
u_int i;
int keys;
wp->modedata = data = xmalloc(sizeof *data);
data->oy = 0;
data->cx = wp->base.cx;
data->cy = wp->base.cy;
data->lastcx = 0;
data->lastsx = 0;
data->rectflag = 0;
data->inputtype = WINDOW_COPY_OFF;
data->inputprompt = NULL;
data->inputstr = xstrdup("");
data->numprefix = 0;
data->searchtype = WINDOW_COPY_OFF;
data->searchstr = NULL;
wp->flags |= PANE_FREEZE;
bufferevent_disable(wp->event, EV_READ|EV_WRITE);
s = &data->screen;
screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
if (options_get_number(&wp->window->options, "mode-mouse"))
s->mode |= MODE_MOUSE;
keys = options_get_number(&wp->window->options, "mode-keys");
if (keys == MODEKEY_EMACS)
mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
else
mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
s->cx = data->cx;
s->cy = data->cy;
screen_write_start(&ctx, NULL, s);
for (i = 0; i < screen_size_y(s); i++)
window_copy_write_line(wp, &ctx, i);
screen_write_cursormove(&ctx, data->cx, data->cy);
screen_write_stop(&ctx);
return (s);
}
void
window_copy_redraw_lines(struct window_pane *wp, u_int py, u_int ny)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen_write_ctx ctx;
u_int i;
screen_write_start(&ctx, wp, NULL);
for (i = py; i < py + ny; i++)
window_copy_write_line(wp, &ctx, i);
screen_write_cursormove(&ctx, data->cx, data->cy);
screen_write_stop(&ctx);
}
void
window_copy_init_from_pane(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
struct screen_write_ctx ctx;
u_int i;
if (wp->mode != &window_copy_mode)
fatalx("not in copy mode");
data->backing = &wp->base;
data->cx = data->backing->cx;
data->cy = data->backing->cy;
s->cx = data->cx;
s->cy = data->cy;
screen_write_start(&ctx, NULL, s);
for (i = 0; i < screen_size_y(s); i++)
window_copy_write_line(wp, &ctx, i);
screen_write_cursormove(&ctx, data->cx, data->cy);
screen_write_stop(&ctx);
}