| /**************************************************************************** |
| * Copyright (c) 1998-2010,2011 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 <curses.priv.h> |
| #include <ctype.h> |
| |
| #ifndef CUR |
| #define CUR SP_TERMTYPE |
| #endif |
| |
| MODULE_ID("$Id: lib_slk.c,v 1.48 2011/03/05 21:21:52 tom Exp $") |
| |
| #ifdef USE_TERM_DRIVER |
| #define NumLabels InfoOf(SP_PARM).numlabels |
| #define NoColorVideo InfoOf(SP_PARM).nocolorvideo |
| #define LabelWidth InfoOf(SP_PARM).labelwidth |
| #define LabelHeight InfoOf(SP_PARM).labelheight |
| #else |
| #define NumLabels num_labels |
| #define NoColorVideo no_color_video |
| #define LabelWidth label_width |
| #define LabelHeight label_height |
| #endif |
| |
| /* |
| * Free any memory related to soft labels, return an error. |
| */ |
| static int |
| slk_failed(NCURSES_SP_DCL0) |
| { |
| if ((0 != SP_PARM) && SP_PARM->_slk) { |
| FreeIfNeeded(SP_PARM->_slk->ent); |
| free(SP_PARM->_slk); |
| SP_PARM->_slk = (SLK *) 0; |
| } |
| return ERR; |
| } |
| |
| NCURSES_EXPORT(int) |
| _nc_format_slks(NCURSES_SP_DCLx int cols) |
| { |
| int gap, i, x; |
| int max_length; |
| |
| if (!SP_PARM || !SP_PARM->_slk) |
| return ERR; |
| |
| max_length = SP_PARM->_slk->maxlen; |
| if (SP_PARM->slk_format >= 3) { /* PC style */ |
| gap = (cols - 3 * (3 + 4 * max_length)) / 2; |
| |
| if (gap < 1) |
| gap = 1; |
| |
| for (i = x = 0; i < SP_PARM->_slk->maxlab; i++) { |
| SP_PARM->_slk->ent[i].ent_x = x; |
| x += max_length; |
| x += (i == 3 || i == 7) ? gap : 1; |
| } |
| } else { |
| if (SP_PARM->slk_format == 2) { /* 4-4 */ |
| gap = cols - (int) (SP_PARM->_slk->maxlab * max_length) - 6; |
| |
| if (gap < 1) |
| gap = 1; |
| for (i = x = 0; i < SP_PARM->_slk->maxlab; i++) { |
| SP_PARM->_slk->ent[i].ent_x = x; |
| x += max_length; |
| x += (i == 3) ? gap : 1; |
| } |
| } else { |
| if (SP_PARM->slk_format == 1) { /* 1 -> 3-2-3 */ |
| gap = (cols - (SP_PARM->_slk->maxlab * max_length) - 5) |
| / 2; |
| |
| if (gap < 1) |
| gap = 1; |
| for (i = x = 0; i < SP_PARM->_slk->maxlab; i++) { |
| SP_PARM->_slk->ent[i].ent_x = x; |
| x += max_length; |
| x += (i == 2 || i == 4) ? gap : 1; |
| } |
| } else { |
| return slk_failed(NCURSES_SP_ARG); |
| } |
| } |
| } |
| SP_PARM->_slk->dirty = TRUE; |
| |
| return OK; |
| } |
| |
| /* |
| * Initialize soft labels. |
| * Called from newterm() |
| */ |
| NCURSES_EXPORT(int) |
| _nc_slk_initialize(WINDOW *stwin, int cols) |
| { |
| int i; |
| int res = OK; |
| size_t max_length; |
| SCREEN *sp; |
| int numlab; |
| |
| T((T_CALLED("_nc_slk_initialize()"))); |
| |
| assert(stwin); |
| |
| sp = _nc_screen_of(stwin); |
| if (0 == sp) |
| returnCode(ERR); |
| |
| assert(TerminalOf(SP_PARM)); |
| |
| numlab = NumLabels; |
| |
| if (SP_PARM->_slk) { /* we did this already, so simply return */ |
| returnCode(OK); |
| } else if ((SP_PARM->_slk = typeCalloc(SLK, 1)) == 0) |
| returnCode(ERR); |
| |
| if (!SP_PARM->slk_format) |
| SP_PARM->slk_format = _nc_globals.slk_format; |
| |
| /* |
| * 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 ((NoColorVideo & 1) == 0) |
| SetAttr(SP_PARM->_slk->attr, A_STANDOUT); |
| else |
| SetAttr(SP_PARM->_slk->attr, A_REVERSE); |
| |
| SP_PARM->_slk->maxlab = (short) ((numlab > 0) |
| ? numlab |
| : MAX_SKEY(SP_PARM->slk_format)); |
| SP_PARM->_slk->maxlen = (short) ((numlab > 0) |
| ? LabelWidth * LabelHeight |
| : MAX_SKEY_LEN(SP_PARM->slk_format)); |
| SP_PARM->_slk->labcnt = (short) ((SP_PARM->_slk->maxlab < MAX_SKEY(SP_PARM->slk_format)) |
| ? MAX_SKEY(SP_PARM->slk_format) |
| : SP_PARM->_slk->maxlab); |
| |
| if (SP_PARM->_slk->maxlen <= 0 |
| || SP_PARM->_slk->labcnt <= 0 |
| || (SP_PARM->_slk->ent = typeCalloc(slk_ent, |
| (size_t) SP_PARM->_slk->labcnt)) |
| == NULL) |
| returnCode(slk_failed(NCURSES_SP_ARG)); |
| |
| max_length = (size_t) SP_PARM->_slk->maxlen; |
| for (i = 0; i < SP_PARM->_slk->labcnt; i++) { |
| size_t used = max_length + 1; |
| |
| SP_PARM->_slk->ent[i].ent_text = (char *) _nc_doalloc(0, used); |
| if (SP_PARM->_slk->ent[i].ent_text == 0) |
| returnCode(slk_failed(NCURSES_SP_ARG)); |
| memset(SP_PARM->_slk->ent[i].ent_text, 0, used); |
| |
| SP_PARM->_slk->ent[i].form_text = (char *) _nc_doalloc(0, used); |
| if (SP_PARM->_slk->ent[i].form_text == 0) |
| returnCode(slk_failed(NCURSES_SP_ARG)); |
| |
| if (used > 1) { |
| memset(SP_PARM->_slk->ent[i].form_text, ' ', used - 1); |
| } |
| SP_PARM->_slk->ent[i].form_text[used - 1] = '\0'; |
| |
| SP_PARM->_slk->ent[i].visible = (char) (i < SP_PARM->_slk->maxlab); |
| } |
| |
| res = _nc_format_slks(NCURSES_SP_ARGx cols); |
| |
| if ((SP_PARM->_slk->win = stwin) == NULL) { |
| returnCode(slk_failed(NCURSES_SP_ARG)); |
| } |
| |
| /* 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) |
| */ |
| _nc_globals.slk_format = 0; |
| returnCode(res); |
| } |
| |
| /* |
| * Restore the soft labels on the screen. |
| */ |
| NCURSES_EXPORT(int) |
| NCURSES_SP_NAME(slk_restore) (NCURSES_SP_DCL0) |
| { |
| T((T_CALLED("slk_restore(%p)"), (void *) SP_PARM)); |
| |
| if (0 == SP_PARM) |
| returnCode(ERR); |
| if (SP_PARM->_slk == NULL) |
| returnCode(ERR); |
| SP_PARM->_slk->hidden = FALSE; |
| SP_PARM->_slk->dirty = TRUE; |
| |
| returnCode(NCURSES_SP_NAME(slk_refresh) (NCURSES_SP_ARG)); |
| } |
| |
| #if NCURSES_SP_FUNCS |
| NCURSES_EXPORT(int) |
| slk_restore(void) |
| { |
| return NCURSES_SP_NAME(slk_restore) (CURRENT_SCREEN); |
| } |
| #endif |
