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Horizontal history/scrolling.

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This commit is contained in:
Nicholas Marriott
2007-11-21 15:35:53 +00:00
parent e4f01009a3
commit d5edaf988e
6 changed files with 88 additions and 45 deletions
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56
window-scroll.c
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@ -1,4 +1,4 @@
/* $Id: window-scroll.c,v 1.4 2007-11-21 14:57:08 nicm Exp $ */
/* $Id: window-scroll.c,v 1.5 2007-11-21 15:35:53 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -33,7 +33,8 @@ const struct window_mode window_scroll_mode = {
};
struct window_scroll_mode_data {
u_int off;
u_int ox;
u_int oy;
u_int size;
};
@ -43,7 +44,7 @@ window_scroll_init(struct window *w)
struct window_scroll_mode_data *data;
w->modedata = data = xmalloc(sizeof *data);
data->off = 0;
data->ox = data->oy = 0;
data->size = w->screen.hsize;
}
@ -61,19 +62,19 @@ window_scroll_draw(struct window *w, struct buffer *b, u_int py, u_int ny)
size_t len;
if (s->hsize != data->size) {
data->off += s->hsize - data->size;
data->ox += s->hsize - data->size;
data->size = s->hsize;
}
screen_draw(s, b, py, ny, data->off);
screen_draw(s, b, py, ny, data->ox, data->oy);
input_store_zero(b, CODE_CURSOROFF);
if (py == 0 && ny > 0) {
len = screen_size_x(s);
if (len > (sizeof buf) - 1)
len = (sizeof buf) - 1;
len = xsnprintf(buf, len + 1, "{%u/%u}",
data->off, s->hsize);
len = xsnprintf(
buf, len + 1, "[%u,%u/%u]", data->ox, data->oy, s->hsize);
input_store_two(
b, CODE_CURSORMOVE, 0, screen_size_x(s) - len + 1);
@ -86,9 +87,14 @@ void
window_scroll_key(struct window *w, int key)
{
struct window_scroll_mode_data *data = w->modedata;
u_int off, sy = screen_size_y(&w->screen);
u_int ox, oy, sx, sy;
sx = screen_size_x(&w->screen);
sy = screen_size_y(&w->screen);
ox = data->ox;
oy = data->oy;
off = data->off;
switch (key) {
case 'Q':
case 'q':
@ -98,33 +104,43 @@ window_scroll_key(struct window *w, int key)
recalculate_sizes();
server_redraw_window_all(w);
return;
case 'h':
case KEYC_LEFT:
if (data->ox > 0)
data->ox--;
break;
case 'l':
case KEYC_RIGHT:
if (data->ox < SHRT_MAX)
data->ox++;
break;
case 'k':
case 'K':
case KEYC_UP:
if (data->off < data->size)
data->off++;
if (data->oy < data->size)
data->oy++;
break;
case 'j':
case 'J':
case KEYC_DOWN:
if (data->off > 0)
data->off--;
if (data->oy > 0)
data->oy--;
break;
case '\025':
case KEYC_PPAGE:
if (data->off + sy > data->size)
data->off = data->size;
if (data->oy + sy > data->size)
data->oy = data->size;
else
data->off += sy;
data->oy += sy;
break;
case '\006':
case KEYC_NPAGE:
if (data->off < sy)
data->off = 0;
if (data->oy < sy)
data->oy = 0;
else
data->off -= sy;
data->oy -= sy;
break;
}
if (off != data->off)
if (ox != data->ox || oy != data->oy)
server_redraw_window_all(w);
}