--- /dev/null
+/* TTY-specific Lisp objects.
+ Copyright (C) 1995 Board of Trustees, University of Illinois.
+ Copyright (C) 1995, 1996 Ben Wing.
+
+This file is part of XEmacs.
+
+XEmacs 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.
+
+XEmacs 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 XEmacs; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* Synched up with: Not in FSF. */
+
+#include <config.h>
+#include "lisp.h"
+
+#include "console-tty.h"
+#include "insdel.h"
+#include "objects-tty.h"
+#ifdef MULE
+#include "device.h"
+#include "mule-charset.h"
+#endif
+
+/* An alist mapping from color names to a cons of (FG-STRING, BG-STRING). */
+Lisp_Object Vtty_color_alist;
+#if 0 /* This stuff doesn't quite work yet */
+Lisp_Object Vtty_dynamic_color_fg;
+Lisp_Object Vtty_dynamic_color_bg;
+#endif
+
+DEFUN ("register-tty-color", Fregister_tty_color, 3, 3, 0, /*
+Register COLOR as a recognized TTY color.
+COLOR should be a string.
+Strings FG-STRING and BG-STRING should specify the escape sequences to
+ set the foreground and background to the given color, respectively.
+*/
+ (color, fg_string, bg_string))
+{
+ CHECK_STRING (color);
+ CHECK_STRING (fg_string);
+ CHECK_STRING (bg_string);
+
+ color = Fintern (color, Qnil);
+ Vtty_color_alist = Fremassq (color, Vtty_color_alist);
+ Vtty_color_alist = Fcons (Fcons (color, Fcons (fg_string, bg_string)),
+ Vtty_color_alist);
+
+ return Qnil;
+}
+
+DEFUN ("unregister-tty-color", Funregister_tty_color, 1, 1, 0, /*
+Unregister COLOR as a recognized TTY color.
+*/
+ (color))
+{
+ CHECK_STRING (color);
+
+ color = Fintern (color, Qnil);
+ Vtty_color_alist = Fremassq (color, Vtty_color_alist);
+ return Qnil;
+}
+
+DEFUN ("find-tty-color", Ffind_tty_color, 1, 1, 0, /*
+Look up COLOR in the list of registered TTY colors.
+If it is found, return a list (FG-STRING BG-STRING) of the escape
+sequences used to set the foreground and background to the color, respectively.
+If it is not found, return nil.
+*/
+ (color))
+{
+ Lisp_Object result;
+
+ CHECK_STRING (color);
+
+ result = Fassq (Fintern (color, Qnil), Vtty_color_alist);
+ if (!NILP (result))
+ return list2 (Fcar (Fcdr (result)), Fcdr (Fcdr (result)));
+ else
+ return Qnil;
+}
+
+DEFUN ("tty-color-list", Ftty_color_list, 0, 0, 0, /*
+Return a list of the registered TTY colors.
+*/
+ ())
+{
+ Lisp_Object result = Qnil;
+ Lisp_Object rest;
+
+ LIST_LOOP (rest, Vtty_color_alist)
+ {
+ result = Fcons (Fsymbol_name (XCAR (XCAR (rest))), result);
+ }
+
+ return Fnreverse (result);
+}
+
+#if 0
+
+/* This approach is too simplistic. The problem is that the
+ dynamic color settings apply to *all* text in the default color,
+ not just the text output after the escape sequence has been given. */
+
+DEFUN ("set-tty-dynamic-color-specs", Fset_tty_dynamic_color_specs, 2, 2, 0, /*
+Set the dynamic color specifications for TTY's.
+FG and BG should be either nil or vaguely printf-like strings,
+where each occurrence of %s is replaced with the color name and each
+occurrence of %% is replaced with a single % character.
+*/
+ (fg, bg))
+{
+ if (!NILP (fg))
+ CHECK_STRING (fg);
+ if (!NILP (bg))
+ CHECK_STRING (bg);
+
+ Vtty_dynamic_color_fg = fg;
+ Vtty_dynamic_color_bg = bg;
+
+ return Qnil;
+}
+
+DEFUN ("tty-dynamic-color-specs", Ftty_dynamic_color_specs, 0, 0, 0, /*
+Return the dynamic color specifications for TTY's as a list of (FG BG).
+See `set-tty-dynamic-color-specs'.
+*/
+ ())
+{
+ return list2 (Vtty_dynamic_color_fg, Vtty_dynamic_color_bg);
+}
+
+#endif /* 0 */
+
+static int
+tty_initialize_color_instance (Lisp_Color_Instance *c, Lisp_Object name,
+ Lisp_Object device, Error_behavior errb)
+{
+ Lisp_Object result;
+
+ name = Fintern (name, Qnil);
+ result = assq_no_quit (name, Vtty_color_alist);
+
+ if (NILP (result))
+ {
+#if 0
+ if (!STRINGP (Vtty_dynamic_color_fg)
+ && !STRINGP (Vtty_dynamic_color_bg))
+#endif
+ return 0;
+ }
+
+ /* Don't allocate the data until we're sure that we will succeed. */
+ c->data = xnew (struct tty_color_instance_data);
+ COLOR_INSTANCE_TTY_SYMBOL (c) = name;
+
+ return 1;
+}
+
+static void
+tty_mark_color_instance (Lisp_Color_Instance *c)
+{
+ mark_object (COLOR_INSTANCE_TTY_SYMBOL (c));
+}
+
+static void
+tty_print_color_instance (Lisp_Color_Instance *c,
+ Lisp_Object printcharfun,
+ int escapeflag)
+{
+}
+
+static void
+tty_finalize_color_instance (Lisp_Color_Instance *c)
+{
+ if (c->data)
+ xfree (c->data);
+}
+
+static int
+tty_color_instance_equal (Lisp_Color_Instance *c1,
+ Lisp_Color_Instance *c2,
+ int depth)
+{
+ return (EQ (COLOR_INSTANCE_TTY_SYMBOL (c1),
+ COLOR_INSTANCE_TTY_SYMBOL (c2)));
+}
+
+static unsigned long
+tty_color_instance_hash (Lisp_Color_Instance *c, int depth)
+{
+ return LISP_HASH (COLOR_INSTANCE_TTY_SYMBOL (c));
+}
+
+static int
+tty_valid_color_name_p (struct device *d, Lisp_Object color)
+{
+ return (!NILP (assoc_no_quit (Fintern (color, Qnil), Vtty_color_alist)));
+#if 0
+ || STRINGP (Vtty_dynamic_color_fg)
+ || STRINGP (Vtty_dynamic_color_bg)
+#endif
+}
+
+\f
+static int
+tty_initialize_font_instance (Lisp_Font_Instance *f, Lisp_Object name,
+ Lisp_Object device, Error_behavior errb)
+{
+ Bufbyte *str = XSTRING_DATA (name);
+ Lisp_Object charset = Qnil;
+
+ if (strncmp ((const char *) str, "normal", 6))
+ return 0;
+ str += 6;
+ if (*str)
+ {
+#ifdef MULE
+ if (*str != '/')
+ return 0;
+ str++;
+ charset = Ffind_charset (intern ((const char *) str));
+ if (NILP (charset))
+ return 0;
+#else
+ return 0;
+#endif
+ }
+
+ /* Don't allocate the data until we're sure that we will succeed. */
+ f->data = xnew (struct tty_font_instance_data);
+ FONT_INSTANCE_TTY_CHARSET (f) = charset;
+#ifdef MULE
+ if (CHARSETP (charset))
+ f->width = XCHARSET_COLUMNS (charset);
+ else
+#endif
+ f->width = 1;
+
+ f->proportional_p = 0;
+ f->ascent = f->height = 1;
+ f->descent = 0;
+
+ return 1;
+}
+
+static void
+tty_mark_font_instance (Lisp_Font_Instance *f)
+{
+ mark_object (FONT_INSTANCE_TTY_CHARSET (f));
+}
+
+static void
+tty_print_font_instance (Lisp_Font_Instance *f,
+ Lisp_Object printcharfun,
+ int escapeflag)
+{
+}
+
+static void
+tty_finalize_font_instance (Lisp_Font_Instance *f)
+{
+ if (f->data)
+ xfree (f->data);
+}
+
+static Lisp_Object
+tty_list_fonts (Lisp_Object pattern, Lisp_Object device)
+{
+ return list1 (build_string ("normal"));
+}
+
+#ifdef MULE
+
+static int
+tty_font_spec_matches_charset (struct device *d, Lisp_Object charset,
+ const Bufbyte *nonreloc, Lisp_Object reloc,
+ Bytecount offset, Bytecount length)
+{
+ const Bufbyte *the_nonreloc = nonreloc;
+
+ if (!the_nonreloc)
+ the_nonreloc = XSTRING_DATA (reloc);
+ fixup_internal_substring (nonreloc, reloc, offset, &length);
+ the_nonreloc += offset;
+
+ if (UNBOUNDP (charset))
+ return !memchr (the_nonreloc, '/', length);
+ the_nonreloc = (const Bufbyte *) memchr (the_nonreloc, '/', length);
+ if (!the_nonreloc)
+ return 0;
+ the_nonreloc++;
+ {
+ Lisp_String *s = symbol_name (XSYMBOL (XCHARSET_NAME (charset)));
+ return !strcmp ((const char *) the_nonreloc,
+ (const char *) string_data (s));
+ }
+}
+
+/* find a font spec that matches font spec FONT and also matches
+ (the registry of) CHARSET. */
+static Lisp_Object
+tty_find_charset_font (Lisp_Object device, Lisp_Object font,
+ Lisp_Object charset)
+{
+ Bufbyte *fontname = XSTRING_DATA (font);
+
+ if (strchr ((const char *) fontname, '/'))
+ {
+ if (tty_font_spec_matches_charset (XDEVICE (device), charset, 0,
+ font, 0, -1))
+ return font;
+ return Qnil;
+ }
+
+ if (UNBOUNDP (charset))
+ return font;
+
+ return concat3 (font, build_string ("/"),
+ Fsymbol_name (XCHARSET_NAME (charset)));
+}
+
+#endif /* MULE */
+
+\f
+/************************************************************************/
+/* initialization */
+/************************************************************************/
+
+void
+syms_of_objects_tty (void)
+{
+ DEFSUBR (Fregister_tty_color);
+ DEFSUBR (Funregister_tty_color);
+ DEFSUBR (Ffind_tty_color);
+ DEFSUBR (Ftty_color_list);
+#if 0
+ DEFSUBR (Fset_tty_dynamic_color_specs);
+ DEFSUBR (Ftty_dynamic_color_specs);
+#endif
+}
+
+void
+console_type_create_objects_tty (void)
+{
+ /* object methods */
+ CONSOLE_HAS_METHOD (tty, initialize_color_instance);
+ CONSOLE_HAS_METHOD (tty, mark_color_instance);
+ CONSOLE_HAS_METHOD (tty, print_color_instance);
+ CONSOLE_HAS_METHOD (tty, finalize_color_instance);
+ CONSOLE_HAS_METHOD (tty, color_instance_equal);
+ CONSOLE_HAS_METHOD (tty, color_instance_hash);
+ CONSOLE_HAS_METHOD (tty, valid_color_name_p);
+
+ CONSOLE_HAS_METHOD (tty, initialize_font_instance);
+ CONSOLE_HAS_METHOD (tty, mark_font_instance);
+ CONSOLE_HAS_METHOD (tty, print_font_instance);
+ CONSOLE_HAS_METHOD (tty, finalize_font_instance);
+ CONSOLE_HAS_METHOD (tty, list_fonts);
+#ifdef MULE
+ CONSOLE_HAS_METHOD (tty, font_spec_matches_charset);
+ CONSOLE_HAS_METHOD (tty, find_charset_font);
+#endif
+}
+
+void
+vars_of_objects_tty (void)
+{
+ staticpro (&Vtty_color_alist);
+ Vtty_color_alist = Qnil;
+
+#if 0
+ staticpro (&Vtty_dynamic_color_fg);
+ Vtty_dynamic_color_fg = Qnil;
+
+ staticpro (&Vtty_dynamic_color_bg);
+ Vtty_dynamic_color_bg = Qnil;
+#endif
+}
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