XEmacs 21.2-b1

[chise/xemacs-chise.git.1] / src / gui.h

diff --git a/src/gui.h b/src/gui.h
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+/* Generic GUI code. (menubars, scrollbars, toolbars, dialogs)
+   Copyright (C) 1995 Board of Trustees, University of Illinois.
+   Copyright (C) 1995, 1996 Ben Wing.
+   Copyright (C) 1995 Sun Microsystems, Inc.
+
+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. */
+
+/* Written by kkm on 12/24/97 */
+
+#ifndef _XEMACS_GUI_H_
+#define _XEMACS_GUI_H_
+
+#ifdef HAVE_POPUPS
+int separator_string_p (CONST char *s);
+void get_gui_callback (Lisp_Object, Lisp_Object *, Lisp_Object *);
+
+extern int popup_up_p;
+
+/* This structure describes gui button,
+   menu item or submenu properties */
+struct gui_item
+{
+  Lisp_Object name;            /* String */
+  Lisp_Object callback;                /* Symbol or form */
+  Lisp_Object suffix;          /* String */
+  Lisp_Object active;          /* Form */
+  Lisp_Object included;                /* Form */
+  Lisp_Object config;          /* Anything EQable */
+  Lisp_Object filter;          /* Form */
+  Lisp_Object style;           /* Symbol */
+  Lisp_Object selected;                /* Form */
+  Lisp_Object keys;            /* String */
+};
+#define GUI_ITEM_LAST_GCPROED keys
+#define GUI_ITEM_GCPRO_COUNT \
+  (slot_offset(struct gui_item, GUI_ITEM_LAST_GCPROED) / sizeof(Lisp_Object) + 1)
+
+/*
+ * gui_item is a struct containing a bunch of Lisp_Object
+ * members.  We need to GC-protect all the member slots.
+ * Rather than build a long chain of individual gcpro structs
+ * that protect the slots individually, we protect all the
+ * member slots by pretending the struct is an array.  ANSI C
+ * requires this hack to work, ugly though it is.
+ */
+#define GCPRO_GUI_ITEM(pgui_item)                                      \
+       do {                                                            \
+         Lisp_Object *gui_item_array = (Lisp_Object *) pgui_item;      \
+         GCPRO1 (gui_item_array[0]);                                   \
+         gcpro1.nvars = GUI_ITEM_GCPRO_COUNT;                          \
+       } while (0);
+
+extern Lisp_Object Q_accelerator, Q_active, Q_config, Q_filter, Q_included;
+extern Lisp_Object Q_keys, Q_selected, Q_suffix, Qradio, Qtoggle;
+
+void gui_item_init (struct gui_item *pgui_item);
+void gui_item_add_keyval_pair (struct gui_item *pgui_item,
+                              Lisp_Object key, Lisp_Object val);
+void gui_parse_item_keywords (Lisp_Object item, struct gui_item *pgui_item);
+int  gui_item_active_p (CONST struct gui_item *pgui_item);
+int  gui_item_included_p (CONST struct gui_item *pgui_item, Lisp_Object into);
+unsigned int gui_item_display_flush_left  (CONST struct gui_item *pgui_item,
+                                          char* buf, Bytecount buf_len);
+unsigned int gui_item_display_flush_right (CONST struct gui_item *pgui_item,
+                                          char* buf, Bytecount buf_len);
+
+#endif /* HAVE_POPUPS */
+
+#endif /* _XEMACS_GUI_H_ */