lwlib/lwlib-int.h

   1 /*
   2 Copyright (C) 1992 Lucid, Inc.
   3 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
   4   2010, 2011 Free Software Foundation, Inc.
   5
   6 This file is part of the Lucid Widget Library.
   7
   8 The Lucid Widget Library is free software; you can redistribute it and/or
   9 modify it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 1, or (at your option)
  11 any later version.
  12
  13 The Lucid Widget Library is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU Emacs; see the file COPYING.  If not, write to
  20 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21 Boston, MA 02110-1301, USA.  */
  22
  23
  24 #ifndef LWLIB_INTERNAL_H
  25 #define LWLIB_INTERNAL_H
  26
  27 #include "lwlib.h"
  28
  29 extern char *safe_strdup (const char *);
  30
  31 struct widget_xft_data;
  32
  33 typedef struct _widget_instance
  34 {
  35   Widget                widget;
  36   Widget                parent;
  37   Boolean               pop_up_p;
  38 #ifdef HAVE_XFT
  39   struct widget_xft_data *xft_data;
  40   int                   nr_xft_data;
  41 #endif
  42   struct _widget_info*          info;
  43   struct _widget_instance*      next;
  44 } widget_instance;
  45
  46 typedef struct _widget_info
  47 {
  48   char*                 type;
  49   char*                 name;
  50   LWLIB_ID              id;
  51   widget_value*         val;
  52   Boolean               busy;
  53   lw_callback           pre_activate_cb;
  54   lw_callback           selection_cb;
  55   lw_callback           post_activate_cb;
  56   lw_callback           highlight_cb;
  57   struct _widget_instance*      instances;
  58   struct _widget_info*          next;
  59 } widget_info;
  60
  61 typedef Widget (*widget_creation_function) (widget_instance *instance);
  62
  63 typedef struct _widget_creation_entry
  64 {
  65   char*                         type;
  66   widget_creation_function      function;
  67 } widget_creation_entry;
  68
  69 /* update all other instances of a widget.  Can be used in a callback when
  70    a widget has been used by the user */
  71 void
  72 lw_internal_update_other_instances (Widget, XtPointer, XtPointer);
  73
  74 /* get the widget_value for a widget in a given instance */
  75 widget_value*
  76 lw_get_widget_value_for_widget (widget_instance *, Widget);
  77
  78 widget_info *lw_get_widget_info (LWLIB_ID);
  79 widget_instance * lw_get_widget_instance (Widget);
  80
  81 #endif /* LWLIB_INTERNAL_H */
  82