mirror of
https://github.com/tmux/tmux.git
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132 lines
3.1 KiB
C
132 lines
3.1 KiB
C
/* $Id: window-scroll.c,v 1.2 2007-11-21 14:01:53 nicm Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include "tmux.h"
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void window_scroll_init(struct window *);
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void window_scroll_resize(struct window *, u_int, u_int);
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void window_scroll_draw(struct window *, struct buffer *, u_int, u_int);
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void window_scroll_key(struct window *, int);
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const struct window_mode window_scroll_mode = {
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window_scroll_init,
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window_scroll_resize,
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window_scroll_draw,
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window_scroll_key
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};
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struct window_scroll_mode_data {
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u_int off;
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u_int size;
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};
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void
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window_scroll_init(struct window *w)
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{
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struct window_scroll_mode_data *data;
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w->modedata = data = xmalloc(sizeof *data);
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data->off = 0;
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data->size = w->screen.hsize;
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}
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void
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window_scroll_resize(struct window *w, u_int sx, u_int sy)
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{
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}
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void
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window_scroll_draw(struct window *w, struct buffer *b, u_int py, u_int ny)
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{
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struct window_scroll_mode_data *data = w->modedata;
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struct screen *s = &w->screen;
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char buf[32];
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size_t len;
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if (s->hsize != data->size) {
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data->off += s->hsize - data->size;
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data->size = s->hsize;
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}
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screen_draw(s, b, py, ny, data->off);
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input_store_zero(b, CODE_CURSOROFF);
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if (py == 0 && ny > 0) {
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len = screen_size_x(s);
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if (len > (sizeof buf) - 1)
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len = (sizeof buf) - 1;
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len = xsnprintf(buf, len + 1, "{%u/%u}",
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data->off, s->hsize);
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input_store_two(
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b, CODE_CURSORMOVE, 0, screen_size_x(s) - len + 1);
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input_store_two(b, CODE_ATTRIBUTES, 0, status_colour);
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buffer_write(b, buf, len);
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}
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}
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void
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window_scroll_key(struct window *w, int key)
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{
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struct window_scroll_mode_data *data = w->modedata;
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u_int sy = screen_size_y(&w->screen);
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switch (key) {
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case 'Q':
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case 'q':
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w->mode = NULL;
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xfree(w->modedata);
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recalculate_sizes();
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server_redraw_window_all(w);
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break;
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case 'k':
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case 'K':
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case KEYC_UP:
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if (data->off < data->size)
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data->off++;
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server_redraw_window_all(w);
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break;
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case 'j':
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case 'J':
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case KEYC_DOWN:
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if (data->off > 0)
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data->off--;
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server_redraw_window_all(w);
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break;
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case '\025':
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case KEYC_PPAGE:
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if (data->off + sy > data->size)
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data->off = data->size;
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else
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data->off += sy;
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server_redraw_window_all(w);
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break;
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case '\006':
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case KEYC_NPAGE:
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if (data->off < sy)
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data->off = 0;
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else
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data->off -= sy;
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server_redraw_window_all(w);
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break;
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}
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}
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