diff options
Diffstat (limited to 'lib/libncurses/lib_slk.c')
| -rw-r--r-- | lib/libncurses/lib_slk.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/lib/libncurses/lib_slk.c b/lib/libncurses/lib_slk.c new file mode 100644 index 000000000000..f220a374ae71 --- /dev/null +++ b/lib/libncurses/lib_slk.c @@ -0,0 +1,272 @@ + +/* + * lib_slk.c + * Soft key routines. + * + * Copyright (C) Gerhard Fuernkranz 1993 + * Permisson is granted to redistribute this + * code under the terms of the GNU Copyleft. + */ + +#include <nterm.h> +#include "curses.priv.h" +#include <string.h> +#include <stdlib.h> + +int _slk_format; /* format specified in slk_init() */ + +#define MAXCOLUMNS 135 +#define MAXLINES 66 +#define UNINITIALISED ((struct try * ) -1) +/* + * Retrieve label text. + */ + +char * +slk_label(int n) +{ +SLK *slk = SP->_slk; +#ifdef TRACE + if (_tracing) + _tracef("slk_label(%d)", n); +#endif + + if (slk == NULL || n < 1 || n > 8) + return NULL; + return slk->ent[n-1].text; +} + +/* + * Write the soft lables to the slk window. + */ + +static void +slk_intern_refresh(SLK *slk) +{ +int i; +#ifdef TRACE + if (_tracing) + _tracef("slk_intern_refresh(%x)", slk); +#endif + + for (i = 0; i < 8; i++) { + if (slk->dirty || slk->ent[i].dirty) { + if (slk->ent[i].visible) { + wmove(slk->win,0,slk->ent[i].x); + wattrset(slk->win,A_REVERSE); + waddstr(slk->win,slk->ent[i].form_text); + wattrset(slk->win,A_NORMAL); + } + slk->ent[i].dirty = FALSE; + } + } + slk->dirty = FALSE; +} + +/* + * Refresh the soft label window. + */ + +int +slk_noutrefresh(void) +{ +SLK *slk = SP->_slk; +#ifdef TRACE + if (_tracing) + _tracef("slk_noutrefresh()"); +#endif + + if (slk == NULL) + return ERR; + if (slk->hidden) + return OK; + slk_intern_refresh(slk); + return wnoutrefresh(slk->win); +} + +/* + * Refresh the soft label window. + */ + +int +slk_refresh(void) +{ +SLK *slk = SP->_slk; +#ifdef TRACE + if (_tracing) + _tracef("slk_refresh()"); +#endif + + if (slk == NULL) + return ERR; + if (slk->hidden) + return OK; + slk_intern_refresh(slk); + return wrefresh(slk->win); +} + +/* + * Restore the soft labels on the screen. + */ + +int +slk_restore(void) +{ +SLK *slk = SP->_slk; +#ifdef TRACE + if (_tracing) + _tracef("slk_restore()"); +#endif + + if (slk == NULL) + return ERR; + slk->hidden = FALSE; + slk->dirty = TRUE; + return slk_refresh(); +} + +/* + * Set soft label text. + */ + +int +slk_set(int i, char *str, int format) +{ +SLK *slk = SP->_slk; +int len; +#ifdef TRACE + if (_tracing) + _tracef("slk_set(%d, %s, %d)", i, str, format); +#endif + + if (slk == NULL || i < 1 || i > 8 || format < 0 || format > 2) + return ERR; + if (str == NULL) + str = ""; + i--; + strncpy(slk->ent[i].text,str,8); + memset(slk->ent[i].form_text,' ',8); + slk->ent[i].text[8] = 0; + slk->ent[i].form_text[8] = 0; + len = strlen(slk->ent[i].text); + switch(format) { + case 0: /* left */ + memcpy(slk->ent[i].form_text,slk->ent[i].text,len); + break; + case 1: /* center */ + memcpy(slk->ent[i].form_text+(8-len)/2,slk->ent[i].text,len); + break; + case 2: /* right */ + memcpy(slk->ent[i].form_text+8-len,slk->ent[i].text,len); + break; + } + slk->ent[i].dirty = TRUE; + return OK; +} + +/* + * Pretend, that soft keys have been changed. + */ + +int +slk_touch(void) +{ +SLK *slk = SP->_slk; +#ifdef TRACE + if (_tracing) + _tracef("slk_touch()"); +#endif + + if (slk == NULL) + return ERR; + slk->dirty = TRUE; + return OK; +} + +/* + * Remove soft labels from the screen. + */ + +int +slk_clear(void) +{ +SLK *slk = SP->_slk; +#ifdef TRACE + if (_tracing) + _tracef("slk_clear()"); +#endif + + if (slk == NULL) + return ERR; + slk->hidden = TRUE; + werase(slk->win); + return wrefresh(slk->win); +} + +/* + * Initialize soft labels. + * Called from newterm() + */ + +static int +slk_initialize(WINDOW *stwin, int cols) +{ +SLK *slk; +int i, maxlab, x; +#ifdef TRACE + if (_tracing) + _tracef("slk_initialize()"); +#endif + + if ((SP->_slk = slk = (SLK*) calloc(1,sizeof(SLK))) == NULL) + return OK; + maxlab = (cols+1)/9; + for (i = 0; i < 8; i++) { + memset(slk->ent[i].form_text,' ',8); + slk->ent[i].visible = i < maxlab; + } + if (_slk_format == 1) { /* 4-4 */ + int gap = cols - 64 - 6; + if (gap < 1) + gap = 1; + for (i = x = 0; i < 8; i++) { + slk->ent[i].x = x; + x += 8; + x += (i == 3) ? gap : 1; + } + } + else { /* 0 -> 3-2-3 */ + int gap = (cols - 64 - 5) / 2; + if (gap < 1) + gap = 1; + for (i = x = 0; i < 8; i++) { + slk->ent[i].x = x; + x += 8; + x += (i == 2 || i == 4) ? gap : 1; + } + } + slk->dirty = TRUE; + if ((slk->win = stwin) == NULL) + { + free(slk); + return ERR; + } + + return OK; +} + +/* + * Initialize soft labels. + * Called by the user. + */ + +int +slk_init(int format) +{ + if (format < 0 || format > 1) + return ERR; + _slk_format = format; + ripoffline(-1, slk_initialize); + return OK; +} + |