/* $OpenBSD: lib_slk.c,v 1.4 2001/01/22 18:01:44 millert Exp $ */ /**************************************************************************** * Copyright (c) 1998,1999,2000 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_slk.c * Soft key routines. */ #include #include #include /* num_labels, label_*, plab_norm */ MODULE_ID("$From: lib_slk.c,v 1.20 2000/12/10 02:43:27 tom Exp $") /* * We'd like to move these into the screen context structure, but cannot, * because slk_init() is called before initscr()/newterm(). */ NCURSES_EXPORT_VAR(int) _nc_slk_format = 0; /* one more than format specified in slk_init() */ /* * Paint the info line for the PC style SLK emulation. * */ static void slk_paint_info(WINDOW *win) { if (win && SP->slk_format == 4) { int i; mvwhline(win, 0, 0, 0, getmaxx(win)); wmove(win, 0, 0); for (i = 0; i < SP->_slk->maxlab; i++) { if (win && SP->slk_format == 4) { mvwaddch(win, 0, SP->_slk->ent[i].x, (chtype) 'F'); if (i < 9) waddch(win, (chtype) '1' + i); else { waddch(win, (chtype) '1'); waddch(win, (chtype) '0' + (i - 9)); } } } } } /* * Initialize soft labels. * Called from newterm() */ NCURSES_EXPORT(int) _nc_slk_initialize(WINDOW *stwin, int cols) { int i, x; int res = OK; char *p; T(("slk_initialize()")); if (SP->_slk) { /* we did this already, so simply return */ return (OK); } else if ((SP->_slk = typeCalloc(SLK, 1)) == 0) return (ERR); SP->_slk->ent = NULL; SP->_slk->buffer = NULL; SP->_slk->attr = A_STANDOUT; SP->_slk->maxlab = (num_labels > 0) ? num_labels : MAX_SKEY(_nc_slk_format); SP->_slk->maxlen = (num_labels > 0) ? label_width * label_height : MAX_SKEY_LEN(_nc_slk_format); SP->_slk->labcnt = (SP->_slk->maxlab < MAX_SKEY(_nc_slk_format)) ? MAX_SKEY(_nc_slk_format) : SP->_slk->maxlab; SP->_slk->ent = typeCalloc(slk_ent, SP->_slk->labcnt); if (SP->_slk->ent == NULL) goto exception; p = SP->_slk->buffer = (char *) calloc(2 * SP->_slk->labcnt, (1 + SP->_slk->maxlen)); if (SP->_slk->buffer == NULL) goto exception; for (i = 0; i < SP->_slk->labcnt; i++) { SP->_slk->ent[i].text = p; p += (1 + SP->_slk->maxlen); SP->_slk->ent[i].form_text = p; p += (1 + SP->_slk->maxlen); memset(SP->_slk->ent[i].form_text, ' ', (unsigned) (SP->_slk->maxlen)); SP->_slk->ent[i].visible = (i < SP->_slk->maxlab); } if (_nc_slk_format >= 3) { /* PC style */ int gap = (cols - 3 * (3 + 4 * SP->_slk->maxlen)) / 2; if (gap < 1) gap = 1; for (i = x = 0; i < SP->_slk->maxlab; i++) { SP->_slk->ent[i].x = x; x += SP->_slk->maxlen; x += (i == 3 || i == 7) ? gap : 1; } if (_nc_slk_format == 4) slk_paint_info(stwin); } else { if (_nc_slk_format == 2) { /* 4-4 */ int gap = cols - (SP->_slk->maxlab * SP->_slk->maxlen) - 6; if (gap < 1) gap = 1; for (i = x = 0; i < SP->_slk->maxlab; i++) { SP->_slk->ent[i].x = x; x += SP->_slk->maxlen; x += (i == 3) ? gap : 1; } } else { if (_nc_slk_format == 1) { /* 1 -> 3-2-3 */ int gap = (cols - (SP->_slk->maxlab * SP->_slk->maxlen) - 5) / 2; if (gap < 1) gap = 1; for (i = x = 0; i < SP->_slk->maxlab; i++) { SP->_slk->ent[i].x = x; x += SP->_slk->maxlen; x += (i == 2 || i == 4) ? gap : 1; } } else goto exception; } } SP->_slk->dirty = TRUE; if ((SP->_slk->win = stwin) == NULL) { exception: if (SP->_slk) { FreeIfNeeded(SP->_slk->buffer); FreeIfNeeded(SP->_slk->ent); free(SP->_slk); SP->_slk = (SLK *) 0; res = (ERR); } } /* We now reset the format so that the next newterm has again * per default no SLK keys and may call slk_init again to * define a new layout. (juergen 03-Mar-1999) */ SP->slk_format = _nc_slk_format; _nc_slk_format = 0; return (res); } /* * Restore the soft labels on the screen. */ NCURSES_EXPORT(int) slk_restore(void) { T((T_CALLED("slk_restore()"))); if (SP->_slk == NULL) return (ERR); SP->_slk->hidden = FALSE; SP->_slk->dirty = TRUE; /* we have to repaint info line eventually */ slk_paint_info(SP->_slk->win); returnCode(slk_refresh()); }