--- /dev/null
+#ifndef LWLIB_H
+#define LWLIB_H
+
+#include <X11/Intrinsic.h>
+
+#if defined (LWLIB_MENUBARS_LUCID) || defined (LWLIB_MENUBARS_MOTIF) || defined (LWLIB_MENUBARS_ATHENA)
+#define NEED_MENUBARS
+#endif
+#if defined (LWLIB_SCROLLBARS_LUCID) || defined (LWLIB_SCROLLBARS_MOTIF) || defined (LWLIB_SCROLLBARS_ATHENA)
+#define NEED_SCROLLBARS
+#endif
+#if defined (LWLIB_DIALOGS_LUCID) || defined (LWLIB_DIALOGS_MOTIF) || defined (LWLIB_DIALOGS_ATHENA)
+#define NEED_DIALOGS
+#endif
+
+/*
+** Widget values depend on the Widget type:
+**
+** widget: (name value key enabled data contents/selected)
+**
+** label: ("name" "string" NULL NULL NULL NULL)
+** BUTTON: ("name" "string" "key" T/F data <default-button-p>)
+** CASCADE (button w/menu):
+** ("name" "string" "key" T/F data (label|button|button w/menu...))
+** INCREMENTAL (button w/menu construction callback):
+** ("name" "string" NULL T/F <opaque pointer>)
+** menubar: ("name" NULL NULL T/F data (button w/menu))
+** scrollbar:("name" NULL NULL T/F NULL NULL)
+** selectable thing:
+** ("name" "string" "key" T/F data T/F)
+** checkbox: selectable thing
+** radio: ("name" NULL NULL T/F data (selectable thing...))
+** strings: ("name" NULL NULL T/F data (selectable thing...))
+** TEXT: ("name" "string" <ign> T/F data)
+**
+** Note that the above is EXTREMELY bogus. The "type" of the various entities
+** that a widget_value structure can represent is implicit in the contents of
+** half a dozen slots, instead of there simply being a type field. This
+** should all be rethunk. I've added a type field, but for now it's only used
+** by the new xlwmenu code.
+*/
+
+typedef unsigned long LWLIB_ID;
+
+typedef enum _change_type
+{
+ NO_CHANGE = 0,
+ INVISIBLE_CHANGE = 1,
+ VISIBLE_CHANGE = 2,
+ STRUCTURAL_CHANGE = 3
+} change_type;
+
+typedef enum _widget_value_type
+{
+ UNSPECIFIED_TYPE = 0,
+ BUTTON_TYPE = 1,
+ TOGGLE_TYPE = 2,
+ RADIO_TYPE = 3,
+ TEXT_TYPE = 4,
+ SEPARATOR_TYPE = 5,
+ CASCADE_TYPE = 6,
+ PUSHRIGHT_TYPE = 7,
+ INCREMENTAL_TYPE = 8
+} widget_value_type;
+
+typedef enum _scroll_action
+{
+ SCROLLBAR_LINE_UP = 0,
+ SCROLLBAR_LINE_DOWN = 1,
+ SCROLLBAR_PAGE_UP = 2,
+ SCROLLBAR_PAGE_DOWN = 3,
+ SCROLLBAR_DRAG = 4,
+ SCROLLBAR_CHANGE = 5,
+ SCROLLBAR_TOP = 6,
+ SCROLLBAR_BOTTOM = 7
+} scroll_action;
+
+typedef struct _scroll_event
+{
+ scroll_action action;
+ int slider_value;
+ Time time;
+} scroll_event;
+
+typedef struct _scrollbar_values
+{
+ int line_increment;
+ int page_increment;
+
+ int minimum;
+ int maximum;
+
+ int slider_size;
+ int slider_position;
+
+ int scrollbar_width, scrollbar_height;
+ int scrollbar_x, scrollbar_y;
+} scrollbar_values;
+
+typedef struct _widget_value
+{
+ /* This slot is only partially utilized right now. */
+ widget_value_type type;
+
+ /* name of widget */
+ char* name;
+ /* value (meaning BOGUSLY depend on widget type) */
+ char* value;
+ /* keyboard equivalent. no implications for XtTranslations */
+ char* key;
+ /* accelerator key. For XEmacs, this should be a Lisp_Object holding a
+ char or symbol suitable for passing to event_matches_key_specifier_p.
+ Outside of emacs, this can be anything: an X KeySym is a good idea.
+ lwlib provides support functions for keyboard traversal of menus. Actual
+ implementation of those accelerators is up to the application.
+ */
+ XtPointer accel;
+ /* true if enabled */
+ Boolean enabled;
+ /* true if selected */
+ Boolean selected;
+ /* true if was edited (maintained by get_value) */
+ Boolean edited;
+ /* true if has changed (maintained by lw library) */
+ change_type change;
+ /* Contents of the sub-widgets, also selected slot for checkbox */
+ struct _widget_value* contents;
+ /* data passed to callback */
+ XtPointer call_data;
+ /* next one in the list */
+ struct _widget_value* next;
+ /* slot for the toolkit dependent part. Always initialize to NULL. */
+ void* toolkit_data;
+ /* tell us if we should free the toolkit data slot when freeing the
+ widget_value itself. */
+ Boolean free_toolkit_data;
+
+ /* data defining a scrollbar; only valid if type == "scrollbar" */
+ scrollbar_values *scrollbar_data;
+
+ /* we resource the widget_value structures; this points to the next
+ one on the free list if this one has been deallocated.
+ */
+ struct _widget_value *free_list;
+} widget_value;
+
+
+typedef void (*lw_callback) (Widget w, LWLIB_ID id, XtPointer data);
+
+/* menu stuff */
+/* maybe this should go into a generic lwmenu.h */
+
+extern int lw_menu_active;
+
+#if defined (LWLIB_MENUBARS_LUCID)
+#include "xlwmenu.h"
+#define lw_set_menu xlw_set_menu
+#define lw_push_menu xlw_push_menu
+#define lw_pop_menu xlw_pop_menu
+#define lw_set_item xlw_set_item
+#define lw_map_menu xlw_map_menu
+#define lw_display_menu xlw_display_menu
+#define lw_kill_menus xlw_kill_menus
+#define lw_get_entries xlw_get_entries
+#define lw_menu_level xlw_menu_level
+#else /* LWLIB_MENUBARS_LUCID */
+/* do this for the other toolkits too */
+#endif /* LWLIB_MENUBARS_LUCID */
+
+void lw_register_widget (CONST char* type, CONST char* name, LWLIB_ID id,
+ widget_value* val, lw_callback pre_activate_cb,
+ lw_callback selection_cb,
+ lw_callback post_activate_cb);
+Widget lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p);
+Widget lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p);
+Widget lw_create_widget (CONST char* type, CONST char* name, LWLIB_ID id,
+ widget_value* val, Widget parent, Boolean pop_up_p,
+ lw_callback pre_activate_cb,
+ lw_callback selection_cb,
+ lw_callback post_activate_cb);
+LWLIB_ID lw_get_widget_id (Widget w);
+int lw_map_widget_values (LWLIB_ID id, int (*mapfunc) (widget_value *value,
+ void *closure),
+ void *closure);
+void lw_modify_all_widgets (LWLIB_ID id, widget_value* val, Boolean deep_p);
+void lw_destroy_widget (Widget w);
+void lw_destroy_all_widgets (LWLIB_ID id);
+void lw_destroy_everything (void);
+void lw_destroy_all_pop_ups (void);
+Widget lw_raise_all_pop_up_widgets (void);
+widget_value* lw_get_all_values (LWLIB_ID id);
+Boolean lw_get_some_values (LWLIB_ID id, widget_value* val);
+void lw_pop_up_all_widgets (LWLIB_ID id);
+void lw_pop_down_all_widgets (LWLIB_ID id);
+
+widget_value *malloc_widget_value (void);
+void free_widget_value (widget_value *);
+widget_value *replace_widget_value_tree (widget_value*, widget_value*);
+
+void lw_popup_menu (Widget, XEvent *);
+
+/* Toolkit independent way of focusing on a Widget at the Xt level. */
+void lw_set_keyboard_focus (Widget parent, Widget w);
+
+ /* Silly Energize hack to invert the "sheet" button */
+void lw_show_busy (Widget w, Boolean busy);
+
+#endif /* LWLIB_H */