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 ** main:     ("name")
  23 */
  24
  25 typedef unsigned long LWLIB_ID;
  26
  27 typedef enum _change_type
  28 {
  29   NO_CHANGE = 0,
  30   INVISIBLE_CHANGE = 1,
  31   VISIBLE_CHANGE = 2,
  32   STRUCTURAL_CHANGE = 3
  33 } change_type;
  34
  35 enum button_type
  36 {
  37   BUTTON_TYPE_NONE,
  38   BUTTON_TYPE_TOGGLE,
  39   BUTTON_TYPE_RADIO
  40 };
  41
  42 /* Menu separator types.  */
  43
  44 enum menu_separator
  45 {
  46   /* These values are Motif compatible.  */
  47   SEPARATOR_NO_LINE,
  48   SEPARATOR_SINGLE_LINE,
  49   SEPARATOR_DOUBLE_LINE,
  50   SEPARATOR_SINGLE_DASHED_LINE,
  51   SEPARATOR_DOUBLE_DASHED_LINE,
  52   SEPARATOR_SHADOW_ETCHED_IN,
  53   SEPARATOR_SHADOW_ETCHED_OUT,
  54   SEPARATOR_SHADOW_ETCHED_IN_DASH,
  55   SEPARATOR_SHADOW_ETCHED_OUT_DASH,
  56
  57   /* The following are supported by Lucid menus.  */
  58   SEPARATOR_SHADOW_DOUBLE_ETCHED_IN,
  59   SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT,
  60   SEPARATOR_SHADOW_DOUBLE_ETCHED_IN_DASH,
  61   SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT_DASH
  62 };
  63
  64 typedef struct _widget_value
  65 {
  66   /* name of widget */
  67   char*         name;
  68   /* value (meaning depend on widget type) */
  69   char*         value;
  70   /* keyboard equivalent. no implications for XtTranslations */
  71   char*         key;
  72   /* Help string or nil if none.
  73      GC finds this string through the frame's menu_bar_vector
  74      or through menu_items.  */
  75   Lisp_Object   help;
  76   /* true if enabled */
  77   Boolean       enabled;
  78   /* true if selected */
  79   Boolean       selected;
  80   /* true if was edited (maintained by get_value) */
  81   Boolean       edited;
  82   /* The type of a button.  */
  83   enum button_type button_type;
  84   /* true if has changed (maintained by lw library) */
  85   change_type   change;
  86   /* true if this widget itself has changed,
  87      but not counting the other widgets found in the `next' field.  */
  88   change_type   this_one_change;
  89   /* Contents of the sub-widgets, also selected slot for checkbox */
  90   struct _widget_value* contents;
  91   /* data passed to callback */
  92   XtPointer     call_data;
  93   /* next one in the list */
  94   struct _widget_value* next;
  95   /* slot for the toolkit dependent part.  Always initialize to NULL. */
  96   void* toolkit_data;
  97   /* tell us if we should free the toolkit data slot when freeing the
  98      widget_value itself. */
  99   Boolean free_toolkit_data;
 100
 101   /* we resource the widget_value structures; this points to the next
 102      one on the free list if this one has been deallocated.
 103    */
 104   struct _widget_value *free_list;
 105 } widget_value;
 106
 107
 108 typedef void (*lw_callback) __P ((Widget w, LWLIB_ID id, void* data));
 109
 110 void  lw_register_widget __P ((char* type, char* name, LWLIB_ID id,
 111                                widget_value* val, lw_callback pre_activate_cb,
 112                                lw_callback selection_cb,
 113                                lw_callback post_activate_cb,
 114                                lw_callback highlight_cb));
 115 Widget lw_get_widget __P ((LWLIB_ID id, Widget parent, Boolean pop_up_p));
 116 Widget lw_make_widget __P ((LWLIB_ID id, Widget parent, Boolean pop_up_p));
 117 Widget lw_create_widget __P ((char* type, char* name, LWLIB_ID id,
 118                               widget_value* val, Widget parent, Boolean pop_up_p,
 119                               lw_callback pre_activate_cb,
 120                               lw_callback selection_cb,
 121                               lw_callback post_activate_cb,
 122                               lw_callback highlight_cb));
 123 LWLIB_ID lw_get_widget_id __P ((Widget w));
 124 int lw_modify_all_widgets __P ((LWLIB_ID id, widget_value* val, Boolean deep_p));
 125 void lw_destroy_widget __P ((Widget w));
 126 void lw_destroy_all_widgets __P ((LWLIB_ID id));
 127 void lw_destroy_everything __P ((void));
 128 void lw_destroy_all_pop_ups __P ((void));
 129 Widget lw_raise_all_pop_up_widgets __P ((void));
 130 widget_value* lw_get_all_values __P ((LWLIB_ID id));
 131 Boolean lw_get_some_values __P ((LWLIB_ID id, widget_value* val));
 132 void lw_pop_up_all_widgets __P ((LWLIB_ID id));
 133 void lw_pop_down_all_widgets __P ((LWLIB_ID id));
 134 widget_value *malloc_widget_value ();
 135 void free_widget_value __P ((widget_value *));
 136 void lw_popup_menu __P ((Widget, XEvent *));
 137
 138 /* Toolkit independent way of focusing on a Widget at the Xt level. */
 139 void lw_set_keyboard_focus __P ((Widget parent, Widget w));
 140
 141 /* Silly Energize hack to invert the "sheet" button */
 142 void lw_show_busy __P ((Widget w, Boolean busy));
 143
 144 /* Silly hack to assist with Lucid/Athena geometry management. */
 145 void lw_refigure_widget __P ((Widget w, Boolean doit));
 146
 147 /* Toolkit independent way of determining if an event occurred on a
 148    menubar. */
 149 Boolean lw_window_is_in_menubar __P ((Window win, Widget menubar_widget));
 150
 151 /* Manage resizing: TRUE permits resizing widget w; FALSE disallows it. */
 152 void lw_allow_resizing __P ((Widget w, Boolean flag));
 153
 154 /* Set up the main window. */
 155 void lw_set_main_areas __P ((Widget parent,
 156                            Widget menubar,
 157                            Widget work_area));
 158
 159 /* Value is non-zero if LABEL is a menu separator.  If it is, *TYPE is
 160    set to an appropriate enumerator of type enum menu_separator.
 161    MOTIF_P non-zero means map separator types not supported by Motif
 162    to similar ones that are supported.  */
 163
 164 int lw_separator_p __P ((char *label, enum menu_separator *type,
 165                     int motif_p));
 166
 167 void lwlib_bcopy __P ((char*, char*, int));
 168
 169 #endif /* LWLIB_H */