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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1997, by Sun Microsystems, Inc.
* All rights reserved.
*/
/* A panels subsystem built on curses--Update the pile of panels */
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3 */
/*LINTLIBRARY*/
#include <sys/types.h>
#include <stdlib.h>
#include <curses.h>
#include "private.h"
/*
* touch_top - Touch the line in all windows
* which is visible above a given line
*/
static void
touch_top(PANEL *panel, int line, _obscured_list *obs, int start_x, int end_x)
{
PANEL *pnl;
_obscured_list *next_obs;
do {
pnl = obs -> panel_p;
if ((next_obs = obs->next) == panel -> obscured -> next)
next_obs = 0;
if (line >= obs -> start && line <= obs -> end &&
pnl->wstartx <= end_x && pnl->wendx >= start_x) {
(void) touchline(pnl->win, line - pnl->wstarty, 1);
if (pnl->wstartx > start_x && pnl->wendx < end_x) {
if (next_obs)
touch_top(panel, line, next_obs,
pnl->wendx+1, end_x);
end_x = pnl -> wstartx - 1;
} else {
if (pnl->wstartx <= start_x)
start_x = pnl -> wendx + 1;
if (pnl->wendx >= end_x)
end_x = pnl -> wstartx - 1;
if (start_x > end_x)
return;
}
}
}
while ((obs = next_obs) != 0);
}
/*
* std_touch_top
* Touch the line in all windows which is visible above a given line.
* This routine is almost identical to touch_top, except that the "panel"
* is stdscr in this case. The "obscured" list is the list of panels.
*/
static void
std_touch_top(int line, PANEL *obs_pnl, int start_x, int end_x)
{
PANEL *next_obs;
do {
next_obs = obs_pnl -> below;
if (line >= obs_pnl->wstarty && line <= obs_pnl->wendy &&
obs_pnl->wstartx <= end_x && obs_pnl->wendx >= start_x) {
(void) touchline(obs_pnl->win,
line - obs_pnl->wstarty, 1);
if (obs_pnl->wstartx > start_x &&
obs_pnl->wendx < end_x) {
if (next_obs)
std_touch_top(line, next_obs,
obs_pnl->wendx+1, end_x);
end_x = obs_pnl -> wstartx - 1;
} else {
if (obs_pnl->wstartx <= start_x)
start_x = obs_pnl -> wendx + 1;
if (obs_pnl->wendx >= end_x)
end_x = obs_pnl -> wstartx - 1;
if (start_x > end_x)
return;
}
}
}
while ((obs_pnl = next_obs) != 0);
}
/* touchup - Touch lines in obscuring panals as necessary */
static void
touchup(PANEL *panel)
{
int screen_y, i;
/*
* for each line in the window which has been touched,
* touch lines in panals above it.
*/
screen_y = panel->wendy;
for (i = panel->wendy - panel->wstarty; i >= 0; screen_y--, i--) {
if (is_linetouched(panel -> win, i) == TRUE)
touch_top(panel, screen_y, panel->obscured->next,
panel->wstartx, panel->wendx);
}
}
/*
* std_touchup
* Touch lines in obscuring panals as necessary. This routine is
* almost exactly like touchup, except that the "panel" is stdscr,
* and the obscured list is the list of panels.
*/
static void
std_touchup(void)
{
int screen_y;
/*
* for each line in stdscr which has been touched,
* touch lines in panals above it.
*/
for (screen_y = LINES - 1; screen_y >= 0; screen_y--) {
if (is_linetouched(stdscr, screen_y) == TRUE)
std_touch_top(screen_y, _Top_panel, 0, COLS - 1);
}
}
/* update_panels - Refresh the pile of panels */
void
update_panels(void)
{
PANEL *panel;
/*
* if stdscr has been touched, touch the visible lines
* in each panel.
*/
if (is_wintouched(stdscr)) {
if (_Bottom_panel)
std_touchup();
(void) wnoutrefresh(stdscr);
}
/*
* Refresh panals starting at the bottom of the pile.
* If a line in a window has been touched, touch all
* corresponding lines in the obscuring windows.
*/
for (panel = _Bottom_panel; panel; panel = panel -> above) {
if (is_wintouched(panel -> win)) {
if (panel -> obscured)
touchup(panel);
(void) wnoutrefresh(panel -> win);
}
}
}
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