/**************************************************************************** * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * ****************************************************************************/ /* ** lib_window.c ** ** */ #include MODULE_ID("$Id: lib_window.c,v 1.24 2008/04/12 22:40:21 tom Exp $") NCURSES_EXPORT(void) _nc_synchook(WINDOW *win) /* hook to be called after each window change */ { if (win->_immed) wrefresh(win); if (win->_sync) wsyncup(win); } NCURSES_EXPORT(int) mvderwin(WINDOW *win, int y, int x) /* move a derived window */ { WINDOW *orig; int i; T((T_CALLED("mvderwin(%p,%d,%d)"), win, y, x)); if (win && (orig = win->_parent)) { if (win->_parx == x && win->_pary == y) returnCode(OK); if (x < 0 || y < 0) returnCode(ERR); if ((x + getmaxx(win) > getmaxx(orig)) || (y + getmaxy(win) > getmaxy(orig))) returnCode(ERR); } else returnCode(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]); returnCode(OK); } NCURSES_EXPORT(int) syncok(WINDOW *win, bool bf) /* enable/disable automatic wsyncup() on each change to window */ { T((T_CALLED("syncok(%p,%d)"), win, bf)); if (win) { win->_sync = bf; returnCode(OK); } else returnCode(ERR); } NCURSES_EXPORT(void) wsyncup(WINDOW *win) /* mark changed every cell in win's ancestors that is changed in win */ /* Rewritten by J. Pfeifer, 1-Apr-96 (don't even think that...) */ { WINDOW *wp; T((T_CALLED("wsyncup(%p)"), win)); if (win && win->_parent) { for (wp = win; wp->_parent; wp = wp->_parent) { int y; WINDOW *pp = wp->_parent; assert((wp->_pary <= pp->_maxy) && ((wp->_pary + wp->_maxy) <= pp->_maxy)); for (y = 0; y <= wp->_maxy; y++) { int left = wp->_line[y].firstchar; if (left >= 0) { /* line is touched */ struct ldat *line = &(pp->_line[wp->_pary + y]); /* left & right character in parent window coordinates */ int right = wp->_line[y].lastchar + wp->_parx; left += wp->_parx; CHANGED_RANGE(line, left, right); } } } } returnVoid; } NCURSES_EXPORT(void) wsyncdown(WINDOW *win) /* mark changed every cell in win that is changed in any of its ancestors */ /* Rewritten by J. Pfeifer, 1-Apr-96 (don't even think that...) */ { T((T_CALLED("wsyncdown(%p)"), win)); if (win && win->_parent) { WINDOW *pp = win->_parent; int y; /* This recursion guarantees, that the changes are propagated down- wards from the root to our direct parent. */ wsyncdown(pp); /* and now we only have to propagate the changes from our direct parent, if there are any. */ assert((win->_pary <= pp->_maxy) && ((win->_pary + win->_maxy) <= pp->_maxy)); for (y = 0; y <= win->_maxy; y++) { if (pp->_line[win->_pary + y].firstchar >= 0) { /* parent changed */ struct ldat *line = &(win->_line[y]); /* left and right character in child coordinates */ int left = pp->_line[win->_pary + y].firstchar - win->_parx; int right = pp->_line[win->_pary + y].lastchar - win->_parx; /* The change may be outside the child's range */ if (left < 0) left = 0; if (right > win->_maxx) right = win->_maxx; CHANGED_RANGE(line, left, right); } } } returnVoid; } NCURSES_EXPORT(void) wcursyncup(WINDOW *win) /* sync the cursor in all derived windows to its value in the base window */ { WINDOW *wp; T((T_CALLED("wcursyncup(%p)"), win)); for (wp = win; wp && wp->_parent; wp = wp->_parent) { wmove(wp->_parent, wp->_pary + wp->_cury, wp->_parx + wp->_curx); } returnVoid; } NCURSES_EXPORT(WINDOW *) dupwin(WINDOW *win) /* make an exact duplicate of the given window */ { WINDOW *nwin = 0; size_t linesize; int i; T((T_CALLED("dupwin(%p)"), win)); if (win != 0) { _nc_lock_window(win); if (win->_flags & _ISPAD) { nwin = newpad(win->_maxy + 1, win->_maxx + 1); } else { nwin = newwin(win->_maxy + 1, win->_maxx + 1, win->_begy, win->_begx); } if (nwin != 0) { 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->_yoffset = win->_yoffset; nwin->_flags = win->_flags & ~_SUBWIN; /* Due to the use of newwin(), the clone is not a subwindow. * The text is really copied into the clone. */ WINDOW_ATTRS(nwin) = WINDOW_ATTRS(win); nwin->_nc_bkgd = win->_nc_bkgd; nwin->_notimeout = win->_notimeout; nwin->_clear = win->_clear; nwin->_leaveok = win->_leaveok; nwin->_scroll = win->_scroll; nwin->_idlok = win->_idlok; nwin->_idcok = win->_idcok; nwin->_immed = win->_immed; nwin->_sync = win->_sync; nwin->_use_keypad = win->_use_keypad; nwin->_delay = win->_delay; nwin->_parx = 0; nwin->_pary = 0; nwin->_parent = (WINDOW *) 0; /* See above: the clone isn't a subwindow! */ nwin->_regtop = win->_regtop; nwin->_regbottom = win->_regbottom; if (win->_flags & _ISPAD) nwin->_pad = win->_pad; linesize = (win->_maxx + 1) * sizeof(NCURSES_CH_T); 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; } } _nc_unlock_window(win); } returnWin(nwin); }