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Make scrolling behaviour more sensible and maintain cursor position, as

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if the same had been done line-by-line. From Michal Mazurek.
This commit is contained in:
nicm 2016-03-18 14:27:24 +00:00
parent fa97b0a95b
commit 312a7a1e62
1 changed files with 69 additions and 16 deletions
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85
window-copy.c
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@ -26,6 +26,7 @@
struct screen *window_copy_init(struct window_pane *);
void window_copy_free(struct window_pane *);
void window_copy_pagedown(struct window_pane *);
void window_copy_resize(struct window_pane *, u_int, u_int);
void window_copy_key(struct window_pane *, struct client *, struct session *,
key_code, struct mouse_event *);
@ -324,15 +325,80 @@ window_copy_pageup(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int n;
u_int n, ox, oy;
oy = screen_hsize(data->backing) + data->cy - data->oy;
ox = window_copy_find_length(wp, oy);
if (s->sel.lineflag == LINE_SEL_LEFT_RIGHT && oy == data->sely)
window_copy_other_end(wp);
if (data->cx != ox) {
data->lastcx = data->cx;
data->lastsx = ox;
}
data->cx = data->lastcx;
n = 1;
if (screen_size_y(s) > 2)
n = screen_size_y(s) - 2;
if (data->oy + n > screen_hsize(data->backing))
data->oy = screen_hsize(data->backing);
else
data->oy += n;
if (!data->screen.sel.flag || !data->rectflag) {
u_int py = screen_hsize(data->backing) + data->cy - data->oy;
u_int px = window_copy_find_length(wp, py);
if ((data->cx >= data->lastsx && data->cx != px) || data->cx > px)
window_copy_cursor_end_of_line(wp);
}
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
void
window_copy_pagedown(struct window_pane *wp)
{
struct window_copy_mode_data *data = wp->modedata;
struct screen *s = &data->screen;
u_int n, ox, oy;
oy = screen_hsize(data->backing) + data->cy - data->oy;
ox = window_copy_find_length(wp, oy);
if (s->sel.lineflag == LINE_SEL_RIGHT_LEFT && oy == data->sely)
window_copy_other_end(wp);
if (data->cx != ox) {
data->lastcx = data->cx;
data->lastsx = ox;
}
data->cx = data->lastcx;
n = 1;
if (screen_size_y(s) > 2)
n = screen_size_y(s) - 2;
if (data->oy < n)
data->oy = 0;
else
data->oy -= n;
if (!data->screen.sel.flag || !data->rectflag) {
u_int py = screen_hsize(data->backing) + data->cy - data->oy;
u_int px = window_copy_find_length(wp, py);
if ((data->cx >= data->lastsx && data->cx != px) || data->cx > px)
window_copy_cursor_end_of_line(wp);
}
if (data->scroll_exit && data->oy == 0) {
window_pane_reset_mode(wp);
return;
}
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
}
@ -479,21 +545,8 @@ window_copy_key(struct window_pane *wp, struct client *c, struct session *sess,
window_copy_pageup(wp);
break;
case MODEKEYCOPY_NEXTPAGE:
n = 1;
if (screen_size_y(s) > 2)
n = screen_size_y(s) - 2;
for (; np != 0; np--) {
if (data->oy < n)
data->oy = 0;
else
data->oy -= n;
}
if (data->scroll_exit && data->oy == 0) {
window_pane_reset_mode(wp);
return;
}
window_copy_update_selection(wp, 1);
window_copy_redraw_screen(wp);
for (; np != 0; np--)
window_copy_pagedown(wp);
break;
case MODEKEYCOPY_HALFPAGEUP:
n = screen_size_y(s) / 2;