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/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992-1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of ncurses in any *
* applications linked with it is highly appreciated. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/*
** lib_window.c
**
**
*/
#include "curses.priv.h"
#include <string.h>
void _nc_synchook(WINDOW *win)
/* hook to be called after each window change */
{
if (win->_immed) wrefresh(win);
if (win->_sync) wsyncup(win);
}
int mvderwin(WINDOW *win, int y, int x)
/* move a derived window */
{
WINDOW *orig = win->_parent;
int i;
if (orig)
{
if (win->_parx==x && win->_pary==y)
return OK;
if (x<0 || y<0)
return ERR;
if ( (x+getmaxx(win) > getmaxx(orig)) ||
(y+getmaxy(win) > getmaxy(orig)) )
return ERR;
}
else
return ERR;
wsyncup(win);
win->_parx = x;
win->_pary = y;
for(i=0;i<getmaxy(win);i++)
win->_line[i].text = &(orig->_line[y++].text[x]);
return OK;
}
int syncok(WINDOW *win, bool bf)
/* enable/disable automatic wsyncup() on each change to window */
{
if (win) {
win->_sync = bf;
return(OK);
} else
return(ERR);
}
void wsyncup(WINDOW *win)
/* mark changed every cell in win's ancestors that is changed in win */
{
WINDOW *wp;
if (win->_parent)
for (wp = win; wp->_parent; wp = wp->_parent)
{
int i;
WINDOW *pp = wp->_parent;
for (i = 0; i <= wp->_maxy; i++)
{
if (pp->_line[wp->_pary + i].firstchar >= 0
&& pp->_line[wp->_pary + i].firstchar < wp->_line[i].firstchar)
wp->_line[i].firstchar = pp->_line[wp->_pary + i].firstchar;
if (pp->_line[wp->_pary + i].lastchar > wp->_line[i].lastchar)
wp->_line[i].lastchar = pp->_line[wp->_pary + i].lastchar;
}
}
}
void wsyncdown(WINDOW *win)
/* mark changed every cell in win that is changed in any of its ancestors */
{
WINDOW *wp;
if (win->_parent)
for (wp = win; wp->_parent; wp = wp->_parent)
{
int i;
WINDOW *pp = wp->_parent;
for (i = 0; i <= wp->_maxy; i++)
{
if (wp->_line[i].firstchar >= 0
&& wp->_line[i].firstchar < pp->_line[wp->_pary + i].firstchar)
pp->_line[wp->_pary + i].firstchar = wp->_line[i].firstchar;
if (wp->_line[i].lastchar > pp->_line[wp->_pary + i].lastchar)
pp->_line[wp->_pary + i].lastchar = wp->_line[i].lastchar;
}
}
}
void wcursyncup(WINDOW *win)
/* sync the cursor in all derived windows to its value in the base window */
{
WINDOW *wp;
for( wp = win; wp && wp->_parent; wp = wp->_parent ) {
wmove( wp->_parent, wp->_pary + wp->_cury, wp->_parx + wp->_curx );
}
}
WINDOW *dupwin(WINDOW *win)
/* make an exact duplicate of the given window */
{
WINDOW *nwin;
size_t linesize;
int i;
T(("dupwin(%p) called", win));
if ((nwin = newwin(win->_maxy + 1, win->_maxx + 1, win->_begy, win->_begx)) == NULL)
return NULL;
nwin->_curx = win->_curx;
nwin->_cury = win->_cury;
nwin->_maxy = win->_maxy;
nwin->_maxx = win->_maxx;
nwin->_begy = win->_begy;
nwin->_begx = win->_begx;
nwin->_flags = win->_flags;
nwin->_attrs = win->_attrs;
nwin->_bkgd = win->_bkgd;
nwin->_clear = win->_clear;
nwin->_scroll = win->_scroll;
nwin->_leaveok = win->_leaveok;
nwin->_use_keypad = win->_use_keypad;
nwin->_delay = win->_delay;
nwin->_immed = win->_immed;
nwin->_sync = win->_sync;
nwin->_parx = win->_parx;
nwin->_pary = win->_pary;
nwin->_parent = win->_parent;
nwin->_regtop = win->_regtop;
nwin->_regbottom = win->_regbottom;
linesize = (win->_maxx + 1) * sizeof(chtype);
for (i = 0; i <= nwin->_maxy; i++) {
memcpy(nwin->_line[i].text, win->_line[i].text, linesize);
nwin->_line[i].firstchar = win->_line[i].firstchar;
nwin->_line[i].lastchar = win->_line[i].lastchar;
}
return nwin;
}
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