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authorRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
committerRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
commita388f199193767bacbb38b172ab89cb84369736c (patch)
treea1816f5667d2280b970ca44e407bac8cc4496c0a /ncurses/base/lib_slk.c
parentaa59d4d4c5dda7e1c6f9dc0cc6edc58992a525c7 (diff)
downloadsrc-a388f199193767bacbb38b172ab89cb84369736c.tar.gz
src-a388f199193767bacbb38b172ab89cb84369736c.zip
- Flatten the vendor area
Notes
Notes: svn path=/vendor/ncurses/dist/; revision=184786
Diffstat (limited to 'ncurses/base/lib_slk.c')
-rw-r--r--ncurses/base/lib_slk.c219
1 files changed, 219 insertions, 0 deletions
diff --git a/ncurses/base/lib_slk.c b/ncurses/base/lib_slk.c
new file mode 100644
index 000000000000..27b21b08d718
--- /dev/null
+++ b/ncurses/base/lib_slk.c
@@ -0,0 +1,219 @@
+/****************************************************************************
+ * Copyright (c) 1998-2005,2008 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>
+#include <term.h> /* num_labels, label_*, plab_norm */
+
+MODULE_ID("$Id: lib_slk.c,v 1.31 2008/01/12 20:21:00 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_globals.slk_format));
+ SP->_slk->maxlen = ((num_labels > 0)
+ ? label_width * label_height
+ : MAX_SKEY_LEN(_nc_globals.slk_format));
+ SP->_slk->labcnt = ((SP->_slk->maxlab < MAX_SKEY(_nc_globals.slk_format))
+ ? MAX_SKEY(_nc_globals.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_globals.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_globals.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_globals.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_globals.slk_format;
+ _nc_globals.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());
+}