Update dialog to version 20100428. This changes the license under which

dialog is distributed from GPLv2 to LGPLv2 and introduces a number of new
features and a new and better libdialog API. The existing libdialog will
be kept temporarily as libodialog for compatibility purposes until sade,
sysinstall and tzsetup have been either updated or replaced.

__FreeBSD_version is now 900030.

Discussed on:	-current
Approved by:	core
Obtained from:	http://invisible-island.net/dialog

1 files changed, 169 insertions, 0 deletions

diff --git a/gnu/lib/libodialog/yesno.c b/gnu/lib/libodialog/yesno.c
new file mode 100644
index 0000000..24eb41a
--- /dev/null
+++ b/gnu/lib/libodialog/yesno.c
@@ -0,0 +1,169 @@
+/*
+ *  yesno.c -- implements the yes/no box
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <dialog.h>
+#include "dialog.priv.h"
+
+/* Actual work function */
+static int dialog_yesno_proc(unsigned char *title, unsigned char *prompt,
+			     int height, int width, int yesdefault);
+
+/*
+ * Display a dialog box with two buttons - Yes and No
+ */
+int
+dialog_yesno(unsigned char *title, unsigned char *prompt, int height, int width)
+{
+  return dialog_yesno_proc(title, prompt, height, width, TRUE);
+}
+
+/*
+ * Display a dialog box with two buttons - No and Yes
+ */
+int
+dialog_noyes(unsigned char *title, unsigned char *prompt, int height, int width)
+{
+  return dialog_yesno_proc(title, prompt, height, width, FALSE);
+}
+
+static int
+dialog_yesno_proc(unsigned char *title, unsigned char *prompt, int height, int width, int yesdefault)
+{
+  int i, j, x, y, key, button;
+  WINDOW *dialog;
+  char *tmphlp;
+
+  /* disable helpline */
+  tmphlp = get_helpline();
+  use_helpline(NULL);
+
+  if (height < 0)
+	height = strheight(prompt)+4;
+  if (width < 0) {
+	i = strwidth(prompt);
+	j = ((title != NULL) ? strwidth(title) : 0);
+	width = MAX(i,j)+4;
+  }
+  width = MAX(width,23);
+
+  if (width > COLS)
+	width = COLS;
+  if (height > LINES)
+	height = LINES;
+  /* center dialog box on screen */
+  x = DialogX ? DialogX : (COLS - width)/2;
+  y = DialogY ? DialogY : (LINES - height)/2;
+
+#ifdef HAVE_NCURSES
+  if (use_shadow)
+    draw_shadow(stdscr, y, x, height, width);
+#endif
+  dialog = newwin(height, width, y, x);
+  if (dialog == NULL) {
+    endwin();
+    fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", height,width,y,x);
+    exit(1);
+  }
+  keypad(dialog, TRUE);
+
+  draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
+  wattrset(dialog, border_attr);
+  wmove(dialog, height-3, 0);
+  waddch(dialog, ACS_LTEE);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ACS_HLINE);
+  wattrset(dialog, dialog_attr);
+  waddch(dialog, ACS_RTEE);
+  wmove(dialog, height-2, 1);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ' ');
+
+  if (title != NULL) {
+    wattrset(dialog, title_attr);
+    wmove(dialog, 0, (width - strlen(title))/2 - 1);
+    waddch(dialog, ' ');
+    waddstr(dialog, title);
+    waddch(dialog, ' ');
+  }
+  wattrset(dialog, dialog_attr);
+  wmove(dialog, 1, 2);
+  print_autowrap(dialog, prompt, height-1, width-2, width, 1, 2, TRUE, FALSE);
+
+  display_helpline(dialog, height-1, width);
+
+  x = width/2-10;
+  y = height-2;
+
+  /* preset button 0 or 1 for YES or NO as the default */
+  key = 0;
+  button = !yesdefault;
+  while (key != ESC) {
+    print_button(dialog, "  No  ", y, x+13, button);
+    print_button(dialog, " Yes " , y, x, !button);
+    if (button)
+	wmove(dialog, y, x+16);
+    else
+	wmove(dialog, y, x+2);
+    wrefresh(dialog);
+
+    key = wgetch(dialog);
+    switch (key) {
+      case 'Y':
+      case 'y':
+        delwin(dialog);
+	restore_helpline(tmphlp);
+        return 0;
+      case 'N':
+      case 'n':
+        delwin(dialog);
+	restore_helpline(tmphlp);
+        return 1;
+      case KEY_BTAB:
+      case TAB:
+      case KEY_UP:
+      case KEY_DOWN:
+      case KEY_LEFT:
+      case KEY_RIGHT:
+        button = !button;
+        /* redrawn at the loop's entry */
+        break;
+      case ' ':
+      case '\r':
+      case '\n':
+        delwin(dialog);
+	restore_helpline(tmphlp);
+        return button;
+      case ESC:
+        break;
+    case KEY_F(1):
+    case '?':
+	display_helpfile();
+	break;
+    }
+  }
+
+  delwin(dialog);
+  restore_helpline(tmphlp);
+  return -1;    /* ESC pressed */
+}
+/* End of dialog_yesno() */