/**************************************************************************** * Copyright (c) 1998-2004,2005 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. * ****************************************************************************/ /**************************************************************************** * Authors: * * Gerhard Fuernkranz 1993 (original) * * Zeyd M. Ben-Halim 1992,1995 (sic) * * Eric S. Raymond * * Juergen Pfeifer 1996-on * * Thomas E. Dickey * ****************************************************************************/ /* * lib_slk.c * Soft key routines. */ #include #include #include /* num_labels, label_*, plab_norm */ MODULE_ID("$Id: lib_slk.c,v 1.30 2005/01/08 21:56:36 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++) { mvwprintw(win, 0, SP->_slk->ent[i].ent_x, "F%d", i + 1); } } } /* * Free any memory related to soft labels, return an error. */ static int slk_failed(void) { if (SP->_slk) { FreeIfNeeded(SP->_slk->ent); free(SP->_slk); SP->_slk = (SLK *) 0; } return ERR; } /* * Initialize soft labels. * Called from newterm() */ NCURSES_EXPORT(int) _nc_slk_initialize(WINDOW *stwin, int cols) { int i, x; int res = OK; unsigned max_length; T((T_CALLED("_nc_slk_initialize()"))); if (SP->_slk) { /* we did this already, so simply return */ returnCode(OK); } else if ((SP->_slk = typeCalloc(SLK, 1)) == 0) returnCode(ERR); SP->_slk->ent = NULL; /* * If we use colors, vidputs() will suppress video attributes that conflict * with colors. In that case, we're still guaranteed that "reverse" would * work. */ if ((no_color_video & 1) == 0) SetAttr(SP->_slk->attr, A_STANDOUT); else SetAttr(SP->_slk->attr, A_REVERSE); 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); if (SP->_slk->maxlen <= 0 || SP->_slk->labcnt <= 0 || (SP->_slk->ent = typeCalloc(slk_ent, (unsigned) SP->_slk->labcnt)) == NULL) returnCode(slk_failed()); max_length = SP->_slk->maxlen; for (i = 0; i < SP->_slk->labcnt; i++) { size_t used = max_length + 1; if ((SP->_slk->ent[i].ent_text = (char *) _nc_doalloc(0, used)) == 0) returnCode(slk_failed()); memset(SP->_slk->ent[i].ent_text, 0, used); if ((SP->_slk->ent[i].form_text = (char *) _nc_doalloc(0, used)) == 0) returnCode(slk_failed()); memset(SP->_slk->ent[i].form_text, 0, used); memset(SP->_slk->ent[i].form_text, ' ', max_length); SP->_slk->ent[i].visible = (i < SP->_slk->maxlab); } if (_nc_slk_format >= 3) { /* PC style */ int gap = (cols - 3 * (3 + 4 * max_length)) / 2; if (gap < 1) gap = 1; for (i = x = 0; i < SP->_slk->maxlab; i++) { SP->_slk->ent[i].ent_x = x; x += max_length; x += (i == 3 || i == 7) ? gap : 1; } slk_paint_info(stwin); } else { if (_nc_slk_format == 2) { /* 4-4 */ int gap = cols - (SP->_slk->maxlab * max_length) - 6; if (gap < 1) gap = 1; for (i = x = 0; i < SP->_slk->maxlab; i++) { SP->_slk->ent[i].ent_x = x; x += max_length; x += (i == 3) ? gap : 1; } } else { if (_nc_slk_format == 1) { /* 1 -> 3-2-3 */ int gap = (cols - (SP->_slk->maxlab * max_length) - 5) / 2; if (gap < 1) gap = 1; for (i = x = 0; i < SP->_slk->maxlab; i++) { SP->_slk->ent[i].ent_x = x; x += max_length; x += (i == 2 || i == 4) ? gap : 1; } } else returnCode(slk_failed()); } } SP->_slk->dirty = TRUE; if ((SP->_slk->win = stwin) == NULL) { returnCode(slk_failed()); } /* 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; returnCode(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()); }