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/* $Id: window-scroll.c,v 1.1 2007-11-21 13:11:41 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include "tmux.h"
void window_scroll_init(struct window *);
void window_scroll_resize(struct window *, u_int, u_int);
void window_scroll_draw(struct window *, struct buffer *, u_int, u_int);
void window_scroll_key(struct window *, int);
const struct window_mode window_scroll_mode = {
window_scroll_init,
window_scroll_resize,
window_scroll_draw,
window_scroll_key
};
u_int window_scroll_offset;
u_int window_scroll_size;
void
window_scroll_init(struct window *w)
{
window_scroll_offset = 0;
window_scroll_size = w->screen.hsize;
}
void
window_scroll_resize(struct window *w, u_int sx, u_int sy)
{
}
void
window_scroll_draw(struct window *w, struct buffer *b, u_int py, u_int ny)
{
struct screen *s = &w->screen;
char buf[32];
size_t len;
if (s->hsize != window_scroll_size) {
window_scroll_offset += s->hsize - window_scroll_size;
window_scroll_size = s->hsize;
}
screen_draw(s, b, py, ny, window_scroll_offset);
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}",
window_scroll_offset, s->hsize);
input_store_two(
b, CODE_CURSORMOVE, 0, screen_size_x(s) - len + 1);
input_store_two(b, CODE_ATTRIBUTES, 0, status_colour);
buffer_write(b, buf, len);
}
}
void
window_scroll_key(struct window *w, int key)
{
u_int sy = screen_size_y(&w->screen);
switch (key) {
case 'Q':
case 'q':
w->mode = NULL;
recalculate_sizes();
server_redraw_window_all(w);
break;
case 'k':
case 'K':
case KEYC_UP:
if (window_scroll_offset < window_scroll_size)
window_scroll_offset++;
server_redraw_window_all(w);
break;
case 'j':
case 'J':
case KEYC_DOWN:
if (window_scroll_offset > 0)
window_scroll_offset--;
server_redraw_window_all(w);
break;
case '\025':
case KEYC_PPAGE:
if (window_scroll_offset + sy > window_scroll_size)
window_scroll_offset = window_scroll_size;
else
window_scroll_offset += sy;
server_redraw_window_all(w);
break;
case '\006':
case KEYC_NPAGE:
if (window_scroll_offset < sy)
window_scroll_offset = 0;
else
window_scroll_offset -= sy;
server_redraw_window_all(w);
break;
}
}
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