tmux/window-more.c

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/* $Id: window-more.c,v 1.4 2007-11-22 18:09:43 nicm Exp $ */
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/*
* 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 <string.h>
#include "tmux.h"
void window_more_init(struct window *);
void window_more_resize(struct window *, u_int, u_int);
void window_more_draw(struct window *, struct buffer *, u_int, u_int);
void window_more_key(struct window *, int);
void window_more_draw_position(struct window *, struct screen_draw_ctx *);
void window_more_draw_line(struct window *, struct screen_draw_ctx *, u_int);
void window_more_up_1(struct window *);
void window_more_down_1(struct window *);
const struct window_mode window_more_mode = {
window_more_init,
window_more_resize,
window_more_draw,
window_more_key
};
struct window_more_mode_data {
ARRAY_DECL(, char *) list;
u_int top;
};
void
window_more_vadd(struct window *w, const char *fmt, va_list ap)
{
struct window_more_mode_data *data = w->modedata;
char *s;
xvasprintf(&s, fmt, ap);
ARRAY_ADD(&data->list, s);
}
void
window_more_add(struct window *w, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
window_more_vadd(w, fmt, ap);
va_end(ap);
}
void
window_more_init(struct window *w)
{
struct window_more_mode_data *data;
w->modedata = data = xmalloc(sizeof *data);
ARRAY_INIT(&data->list);
data->top = 0;
w->screen.mode |= MODE_BACKGROUND;
w->screen.mode &= ~MODE_BGCURSOR;
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}
void
window_more_resize(unused struct window *w, unused u_int sx, unused u_int sy)
{
}
void
window_more_draw_position(struct window *w, struct screen_draw_ctx *ctx)
{
struct window_more_mode_data *data = w->modedata;
char *ptr, buf[32];
size_t len;
char *line;
size_t n;
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len = xsnprintf(
buf, sizeof buf, "[%u/%u]", data->top, ARRAY_LENGTH(&data->list));
if (len <= screen_size_x(ctx->s))
ptr = buf;
else {
ptr = buf + len - screen_size_x(ctx->s);
len -= len - screen_size_x(ctx->s);
}
screen_draw_move(ctx, 0, 0);
if (data->top < ARRAY_LENGTH(&data->list)) {
line = ARRAY_ITEM(&data->list, data->top);
n = strlen(line);
if (n > screen_size_x(ctx->s) - len)
n = screen_size_x(ctx->s) - len;
buffer_write(ctx->b, line, n);
} else
n = 0;
for (; n < screen_size_x(ctx->s) - len; n++)
input_store8(ctx->b, SCREEN_DEFDATA);
screen_draw_move(ctx, screen_size_x(ctx->s) - len, 0);
screen_draw_set_attributes(ctx, 0, status_colour);
buffer_write(ctx->b, buf, len);
}
void
window_more_draw_line(struct window *w, struct screen_draw_ctx *ctx, u_int py)
{
struct window_more_mode_data *data = w->modedata;
char *line;
size_t n;
u_int p;
screen_draw_move(ctx, 0, py);
screen_draw_set_attributes(ctx, SCREEN_DEFATTR, SCREEN_DEFCOLR);
p = data->top + py;
if (p >= ARRAY_LENGTH(&data->list)) {
input_store_zero(ctx->b, CODE_CLEARLINE);
return;
}
line = ARRAY_ITEM(&data->list, p);
n = strlen(line);
if (n > screen_size_x(ctx->s))
n = screen_size_x(ctx->s);
buffer_write(ctx->b, line, n);
for (; n < screen_size_x(ctx->s); n++)
input_store8(ctx->b, SCREEN_DEFDATA);
}
void
window_more_draw(struct window *w, struct buffer *b, u_int py, u_int ny)
{
struct screen *s = &w->screen;
struct screen_draw_ctx ctx;
u_int i;
screen_draw_start(&ctx, s, b, 0, 0);
for (i = py; i < py + ny; i++) {
if (i == 0)
continue;
window_more_draw_line(w, &ctx, i);
}
if (py == 0)
window_more_draw_position(w, &ctx);
screen_draw_stop(&ctx);
}
void
window_more_key(struct window *w, int key)
{
struct window_more_mode_data *data = w->modedata;
u_int top, sy, i;
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sy = screen_size_y(&w->screen);
top = data->top;
switch (key) {
case 'Q':
case 'q':
for (i = 0; i < ARRAY_LENGTH(&data->list); i++)
xfree(ARRAY_ITEM(&data->list, i));
ARRAY_FREE(&data->list);
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w->mode = NULL;
xfree(w->modedata);
w->screen.mode &= ~MODE_BACKGROUND;
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recalculate_sizes();
server_redraw_window_all(w);
return;
case 'k':
case 'K':
case KEYC_UP:
window_more_up_1(w);
return;
case 'j':
case 'J':
case KEYC_DOWN:
window_more_down_1(w);
return;
case '\025': /* C-u */
case KEYC_PPAGE:
if (data->top < sy)
data->top = 0;
else
data->top -= sy;
break;
case '\006': /* C-f */
case KEYC_NPAGE:
if (data->top + sy > ARRAY_LENGTH(&data->list))
data->top = ARRAY_LENGTH(&data->list);
else
data->top += sy;
break;
}
if (top != data->top)
server_redraw_window_all(w);
}
void
window_more_up_1(struct window *w)
{
struct window_more_mode_data *data = w->modedata;
struct screen *s = &w->screen;
struct screen_draw_ctx ctx;
struct client *c;
u_int i;
struct hdr hdr;
size_t size;
if (data->top == 0)
return;
data->top--;
for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
c = ARRAY_ITEM(&clients, i);
if (c == NULL || c->session == NULL)
continue;
if (!session_has(c->session, w))
continue;
buffer_ensure(c->out, sizeof hdr);
buffer_add(c->out, sizeof hdr);
size = BUFFER_USED(c->out);
screen_draw_start(&ctx, s, c->out, 0, 0);
screen_draw_move(&ctx, 0, 0);
input_store_one(c->out, CODE_INSERTLINE, 1);
window_more_draw_position(w, &ctx);
window_more_draw_line(w, &ctx, 1);
screen_draw_stop(&ctx);
size = BUFFER_USED(c->out) - size;
hdr.type = MSG_DATA;
hdr.size = size;
memcpy(BUFFER_IN(c->out) - size - sizeof hdr, &hdr, sizeof hdr);
}
}
void
window_more_down_1(struct window *w)
{
struct window_more_mode_data *data = w->modedata;
struct screen *s = &w->screen;
struct screen_draw_ctx ctx;
struct client *c;
u_int i;
struct hdr hdr;
size_t size;
if (data->top >= ARRAY_LENGTH(&data->list))
return;
data->top++;
for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
c = ARRAY_ITEM(&clients, i);
if (c == NULL || c->session == NULL)
continue;
if (!session_has(c->session, w))
continue;
buffer_ensure(c->out, sizeof hdr);
buffer_add(c->out, sizeof hdr);
size = BUFFER_USED(c->out);
screen_draw_start(&ctx, s, c->out, 0, 0);
screen_draw_move(&ctx, 0, 0);
input_store_one(c->out, CODE_DELETELINE, 1);
window_more_draw_line(w, &ctx, screen_last_y(s));
window_more_draw_position(w, &ctx);
screen_draw_stop(&ctx);
size = BUFFER_USED(c->out) - size;
hdr.type = MSG_DATA;
hdr.size = size;
memcpy(BUFFER_IN(c->out) - size - sizeof hdr, &hdr, sizeof hdr);
}
}