lwlib/lwlib-int.h

   1 /*
   2 Copyright (C) 1992 Lucid, Inc.
   3 Copyright (C) 2000-2013 Free Software Foundation, Inc.
   4
   5 This file is part of the Lucid Widget Library.
   6
   7 The Lucid Widget Library is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 1, or (at your option)
  10 any later version.
  11
  12 The Lucid Widget Library is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20
  21 #ifndef LWLIB_INTERNAL_H
  22 #define LWLIB_INTERNAL_H
  23
  24 #include "lwlib.h"
  25
  26 extern char *safe_strdup (const char *);
  27
  28 struct widget_xft_data;
  29
  30 typedef struct _widget_instance
  31 {
  32   Widget                widget;
  33   Widget                parent;
  34   Boolean               pop_up_p;
  35 #ifdef HAVE_XFT
  36   struct widget_xft_data *xft_data;
  37   int                   nr_xft_data;
  38 #endif
  39   struct _widget_info*          info;
  40   struct _widget_instance*      next;
  41 } widget_instance;
  42
  43 typedef struct _widget_info
  44 {
  45   char*                 type;
  46   char*                 name;
  47   LWLIB_ID              id;
  48   widget_value*         val;
  49   Boolean               busy;
  50   lw_callback           pre_activate_cb;
  51   lw_callback           selection_cb;
  52   lw_callback           post_activate_cb;
  53   lw_callback           highlight_cb;
  54   struct _widget_instance*      instances;
  55   struct _widget_info*          next;
  56 } widget_info;
  57
  58 typedef Widget (*widget_creation_function) (widget_instance *instance);
  59
  60 typedef struct _widget_creation_entry
  61 {
  62   char*                         type;
  63   widget_creation_function      function;
  64 } widget_creation_entry;
  65
  66 /* update all other instances of a widget.  Can be used in a callback when
  67    a widget has been used by the user */
  68 void
  69 lw_internal_update_other_instances (Widget, XtPointer, XtPointer);
  70
  71 /* get the widget_value for a widget in a given instance */
  72 widget_value*
  73 lw_get_widget_value_for_widget (widget_instance *, Widget);
  74
  75 widget_info *lw_get_widget_info (LWLIB_ID);
  76 widget_instance * lw_get_widget_instance (Widget);
  77
  78 #endif /* LWLIB_INTERNAL_H */