| /**************************************************************************** |
| * Copyright (c) 1998-2009,2010 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 <zmbenhal@netcom.com> 1992,1995 * |
| * and: Eric S. Raymond <esr@snark.thyrsus.com> * |
| ****************************************************************************/ |
| |
| /* |
| ** lib_window.c |
| ** |
| ** |
| */ |
| |
| #include <curses.priv.h> |
| |
| MODULE_ID("$Id: lib_window.c,v 1.29 2010/12/19 01:47:22 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; |
| int rc = ERR; |
| |
| T((T_CALLED("mvderwin(%p,%d,%d)"), (void *) win, y, x)); |
| |
| if (win != 0 |
| && (orig = win->_parent) != 0 |
| && (x >= 0 && y >= 0) |
| && (x + getmaxx(win) <= getmaxx(orig)) |
| && (y + getmaxy(win) <= getmaxy(orig))) { |
| wsyncup(win); |
| win->_parx = x; |
| win->_pary = y; |
| for (i = 0; i < getmaxy(win); i++) |
| win->_line[i].text = &(orig->_line[y++].text[x]); |
| rc = OK; |
| } |
| returnCode(rc); |
| } |
| |
| NCURSES_EXPORT(int) |
| syncok(WINDOW *win, bool bf) |
| /* enable/disable automatic wsyncup() on each change to window */ |
| { |
| T((T_CALLED("syncok(%p,%d)"), (void *) 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)"), (void *) 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)"), (void *) 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)"), (void *) 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)"), (void *) win)); |
| |
| if (win != 0) { |
| #if NCURSES_SP_FUNCS |
| SCREEN *sp = _nc_screen_of(win); |
| #endif |
| _nc_lock_global(curses); |
| if (win->_flags & _ISPAD) { |
| nwin = NCURSES_SP_NAME(newpad) (NCURSES_SP_ARGx |
| win->_maxy + 1, |
| win->_maxx + 1); |
| } else { |
| nwin = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx |
| 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 = (unsigned) (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_global(curses); |
| } |
| returnWin(nwin); |
| } |
