--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwlib/lwlib.h	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,189 @@
+#ifndef LWLIB_H
+#define LWLIB_H
+
+#include <X11/Intrinsic.h>
+
+/* To eliminate use of `const' in the lwlib sources, define CONST_IS_LOSING. */
+#undef CONST
+#ifdef CONST_IS_LOSING
+# define CONST
+#else
+# define CONST const
+#endif
+
+#if defined (MENUBARS_LUCID) || defined (MENUBARS_MOTIF) || defined (MENUBARS_ATHENA)
+#define NEED_MENUBARS
+#endif
+#if defined (SCROLLBARS_LUCID) || defined (SCROLLBARS_MOTIF) || defined (SCROLLBARS_ATHENA)
+#define NEED_SCROLLBARS
+#endif
+#if defined (DIALOGS_LUCID) || defined (DIALOGS_MOTIF) || defined (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;
+  /* 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);
+
+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 */