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/*
* hold.c: handles buffering of display output.
*
* Written By Michael Sandrof
*
* Copyright (c) 1990 Michael Sandrof.
* Copyright (c) 1991, 1992 Troy Rollo.
* Copyright (c) 1992-2004 Matthew R. Green.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "irc.h"
IRCII_RCSID("@(#)$eterna: hold.c,v 1.22 2004/01/06 05:42:14 mrg Exp $");
#include "ircaux.h"
#include "window.h"
#include "screen.h"
#include "vars.h"
#include "input.h"
/* reset_hold: Make hold_mode behave like VM CHAT, hold only
* when there is no user interaction, this should be called
* whenever the user does something in a window. -lynx
*/
void
reset_hold(win)
Window *win;
{
if (!win)
win = curr_scr_win;
if (!win->scrolled_lines)
win->line_cnt = 0;
}
/* add_to_hold_list: adds str to the hold list queue */
void
add_to_hold_list(window, str, logged)
Window *window;
u_char *str;
int logged;
{
Hold *new;
unsigned int max;
new = (Hold *) new_malloc(sizeof(Hold));
new->str = (u_char *) 0;
malloc_strcpy(&(new->str), str);
new->logged = logged;
window->held_lines++;
if ((max = get_int_var(HOLD_MODE_MAX_VAR)) != 0)
{
if (window->held_lines > max)
hold_mode(window, OFF, 1);
}
new->next = window->hold_head;
new->prev = (Hold *) 0;
if (window->hold_tail == (Hold *) 0)
window->hold_tail = new;
if (window->hold_head)
window->hold_head->prev = new;
window->hold_head = new;
update_all_status();
}
/* remove_from_hold_list: pops the next element off the hold list queue. */
void
remove_from_hold_list(window)
Window *window;
{
Hold *crap;
if (window->hold_tail)
{
window->held_lines--;
new_free(&window->hold_tail->str);
crap = window->hold_tail;
window->hold_tail = window->hold_tail->prev;
if (window->hold_tail == (Hold *) 0)
window->hold_head = window->hold_tail;
else
window->hold_tail->next = (Hold *) 0;
new_free(&crap);
update_all_status();
}
}
/*
* hold_mode: sets the "hold mode". Really. If the update flag is true,
* this will also update the status line, if needed, to display the hold mode
* state. If update is false, only the internal flag is set.
*/
void
hold_mode(window, flag, update)
Window *window;
int flag,
update;
{
if (window == (Window *) 0)
window = curr_scr_win;
if (flag != ON && window->scrolled_lines)
return;
if (flag == TOGGLE)
{
if (window->held == OFF)
window->held = ON;
else
window->held = OFF;
}
else
window->held = flag;
if (update)
{
if (window->held != window->last_held)
{
window->last_held = window->held;
/* This shouldn't be done
* this way */
update_window_status(window, 0);
if (window->update | UPDATE_STATUS)
window->update -= UPDATE_STATUS;
cursor_in_display();
update_input(NO_UPDATE);
}
}
else
window->last_held = -1;
}
/*
* hold_output: returns the state of the window->held, which is set in the
* hold_mode() routine.
*/
int
hold_output(window)
Window *window;
{
if (!window)
window = curr_scr_win;
return (window->held == ON) || (window->scrolled_lines != 0);
}
/*
* hold_queue: returns the string value of the next element on the hold
* quere. This does not change the hold queue
*/
u_char *
hold_queue(window)
Window *window;
{
if (window->hold_tail)
return (window->hold_tail->str);
else
return ((u_char *) 0);
}
int
hold_queue_logged(window)
Window *window;
{
if (window->hold_tail)
return window->hold_tail->logged;
else
return 0;
}
/* toggle_stop_screen: the BIND function TOGGLE_STOP_SCREEN */
void
toggle_stop_screen(key, ptr)
u_int key;
u_char *ptr;
{
hold_mode((Window *) 0, TOGGLE, 1);
update_all_windows();
}
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