Import of texinfo-3.6 from FSF

1 files changed, 76 insertions, 0 deletions

diff --git a/gnu/usr.bin/texinfo/info/display.h b/gnu/usr.bin/texinfo/info/display.h
new file mode 100644
index 00000000000..d8bd5a166fe
--- /dev/null
+++ b/gnu/usr.bin/texinfo/info/display.h
@@ -0,0 +1,76 @@
+/* display.h -- How the display in Info is done. */
+
+/* This file is part of GNU Info, a program for reading online documentation
+   stored in Info format.
+
+   Copyright (C) 1993 Free Software Foundation, Inc.
+
+   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, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Written by Brian Fox (bfox@ai.mit.edu). */
+
+#if !defined (_DISPLAY_H_)
+#define _DISPLAY_H_
+
+#include "info-utils.h"
+#include "terminal.h"
+
+typedef struct {
+  char *text;			/* Text of the line as it appears. */
+  int textlen;			/* Printable Length of TEXT. */
+  int inverse;			/* Non-zero means this line is inverse. */
+} DISPLAY_LINE;
+
+/* An array of display lines which tell us what is currently visible on
+   the display.  */
+extern DISPLAY_LINE **the_display;
+
+/* Non-zero means do no output. */
+extern int display_inhibited;
+
+/* Non-zero if we didn't completely redisplay a window. */
+extern int display_was_interrupted_p;
+
+/* Initialize THE_DISPLAY to WIDTH and HEIGHT, with nothing in it. */
+extern void display_initialize_display ();
+
+/* Clear all of the lines in DISPLAY making the screen blank. */
+extern void display_clear_display ();
+
+/* Update the windows pointed to by WINDOWS in THE_DISPLAY.  This actually
+   writes the text on the screen. */
+extern void display_update_display ();
+
+/* Display WIN on THE_DISPLAY.  Unlike display_update_display (), this
+   function only does one window. */
+extern void display_update_one_window ();
+
+/* Move the screen cursor to directly over the current character in WINDOW. */
+extern void display_cursor_at_point ();
+
+/* Scroll the region of the_display starting at START, ending at END, and
+   moving the lines AMOUNT lines.  If AMOUNT is less than zero, the lines
+   are moved up in the screen, otherwise down.  Actually, it is possible
+   for no scrolling to take place in the case that the terminal doesn't
+   support it.  This doesn't matter to us. */
+extern void display_scroll_display ();
+
+/* Try to scroll lines in WINDOW.  OLD_PAGETOP is the pagetop of WINDOW before
+   having had its line starts recalculated.  OLD_STARTS is the list of line
+   starts that used to appear in this window.  OLD_COUNT is the number of lines
+   that appear in the OLD_STARTS array. */
+extern void display_scroll_line_starts ();
+
+#endif /* !_DISPLAY_H_ */