code.delx.au - gnu-emacs/blob - lwlib/lwlib.h

   1 #ifndef LWLIB_H
   2 #define LWLIB_H
   3
   4 #include <X11/Intrinsic.h>
   5
   6 /*
   7 ** Widget values depend on the Widget type:
   8 **
   9 ** widget:   (name value key enabled data contents/selected)
  10 **
  11 ** label:    ("name" "string" NULL NULL NULL NULL)
  12 ** button:   ("name" "string" "key" T/F data <default-button-p>)
  13 ** button w/menu:
  14 **           ("name" "string" "key" T/F data (label|button|button w/menu...))
  15 ** menubar:  ("name" NULL NULL T/F data (button w/menu))
  16 ** selectable thing:
  17 **           ("name" "string" "key" T/F data T/F)
  18 ** checkbox: selectable thing
  19 ** radio:    ("name" NULL NULL T/F data (selectable thing...))
  20 ** strings:  ("name" NULL NULL T/F data (selectable thing...))
  21 ** text:     ("name" "string" <ign> T/F data)
  22 */
  23
  24 typedef unsigned long LWLIB_ID;
  25
  26 typedef enum _change_type
  27 {
  28   NO_CHANGE = 0,
  29   INVISIBLE_CHANGE = 1,
  30   VISIBLE_CHANGE = 2,
  31   STRUCTURAL_CHANGE = 3
  32 } change_type;
  33
  34 typedef struct _widget_value
  35 {
  36   /* name of widget */
  37   char*         name;
  38   /* value (meaning depend on widget type) */
  39   char*         value;
  40   /* keyboard equivalent. no implications for XtTranslations */
  41   char*         key;
  42   /* true if enabled */
  43   Boolean       enabled;
  44   /* true if selected */
  45   Boolean       selected;
  46   /* true if was edited (maintained by get_value) */
  47   Boolean       edited;
  48   /* true if has changed (maintained by lw library) */
  49   change_type   change;
  50   /* Contents of the sub-widgets, also selected slot for checkbox */
  51   struct _widget_value* contents;
  52   /* data passed to callback */
  53   XtPointer     call_data;
  54   /* next one in the list */
  55   struct _widget_value* next;
  56   /* slot for the toolkit dependent part.  Always initialize to NULL. */
  57   void* toolkit_data;
  58   /* tell us if we should free the toolkit data slot when freeing the
  59      widget_value itself. */
  60   Boolean free_toolkit_data;
  61
  62   /* we resource the widget_value structures; this points to the next
  63      one on the free list if this one has been deallocated.
  64    */
  65   struct _widget_value *free_list;
  66 } widget_value;
  67
  68
  69 typedef void (*lw_callback) (Widget w, LWLIB_ID id, void* data);
  70
  71 void  lw_register_widget (char* type, char* name, LWLIB_ID id,
  72                           widget_value* val, lw_callback pre_activate_cb,
  73                           lw_callback selection_cb,
  74                           lw_callback post_activate_cb);
  75 Widget lw_get_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p);
  76 Widget lw_make_widget (LWLIB_ID id, Widget parent, Boolean pop_up_p);
  77 Widget lw_create_widget (char* type, char* name, LWLIB_ID id,
  78                          widget_value* val, Widget parent, Boolean pop_up_p,
  79                          lw_callback pre_activate_cb,
  80                          lw_callback selection_cb,
  81                          lw_callback post_activate_cb);
  82 LWLIB_ID lw_get_widget_id (Widget w);
  83 void lw_modify_all_widgets (LWLIB_ID id, widget_value* val, Boolean deep_p);
  84 void lw_destroy_widget (Widget w);
  85 void lw_destroy_all_widgets (LWLIB_ID id);
  86 void lw_destroy_everything (void);
  87 void lw_destroy_all_pop_ups (void);
  88 Widget lw_raise_all_pop_up_widgets (void);
  89 widget_value* lw_get_all_values (LWLIB_ID id);
  90 Boolean lw_get_some_values (LWLIB_ID id, widget_value* val);
  91 void lw_pop_up_all_widgets (LWLIB_ID id);
  92 void lw_pop_down_all_widgets (LWLIB_ID id);
  93 widget_value *malloc_widget_value ();
  94 void free_widget_value (widget_value *);
  95 void lw_popup_menu (Widget);
  96
  97 /* Toolkit independent way of focusing on a Widget at the Xt level. */
  98 void lw_set_keyboard_focus (Widget parent, Widget w);
  99
 100 /* Silly Energize hack to invert the "sheet" button */
 101 void lw_show_busy (Widget w, Boolean busy);
 102
 103 #endif /* LWLIB_H */