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/*
Copyright (C) 1992, 1993 Lucid, Inc.
Copyright (C) 1994, 1999-2011 Free Software Foundation, Inc.
This file is part of the Lucid Widget Library.
The Lucid Widget Library is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
The Lucid Widget Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#ifndef LWLIB_H
#define LWLIB_H
#include <X11/Intrinsic.h>
/*
** 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>)
** button w/menu:
** ("name" "string" "key" T/F data (label|button|button w/menu...))
** menubar: ("name" NULL NULL T/F data (button w/menu))
** 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)
** main: ("name")
*/
typedef unsigned long LWLIB_ID;
typedef enum _change_type
{
NO_CHANGE = 0,
INVISIBLE_CHANGE = 1,
VISIBLE_CHANGE = 2,
STRUCTURAL_CHANGE = 3
} change_type;
enum button_type
{
BUTTON_TYPE_NONE,
BUTTON_TYPE_TOGGLE,
BUTTON_TYPE_RADIO
};
/* Menu separator types. */
enum menu_separator
{
/* These values are Motif compatible. */
SEPARATOR_NO_LINE,
SEPARATOR_SINGLE_LINE,
SEPARATOR_DOUBLE_LINE,
SEPARATOR_SINGLE_DASHED_LINE,
SEPARATOR_DOUBLE_DASHED_LINE,
SEPARATOR_SHADOW_ETCHED_IN,
SEPARATOR_SHADOW_ETCHED_OUT,
SEPARATOR_SHADOW_ETCHED_IN_DASH,
SEPARATOR_SHADOW_ETCHED_OUT_DASH,
/* The following are supported by Lucid menus. */
SEPARATOR_SHADOW_DOUBLE_ETCHED_IN,
SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT,
SEPARATOR_SHADOW_DOUBLE_ETCHED_IN_DASH,
SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT_DASH
};
typedef struct _widget_value
{
/* name of widget */
Lisp_Object lname;
char* name;
/* value (meaning depend on widget type) */
char* value;
/* keyboard equivalent. no implications for XtTranslations */
Lisp_Object lkey;
char* key;
/* Help string or nil if none.
GC finds this string through the frame's menu_bar_vector
or through menu_items. */
Lisp_Object help;
/* true if enabled */
Boolean enabled;
/* true if selected */
Boolean selected;
/* true if was edited (maintained by get_value) */
Boolean edited;
/* The type of a button. */
enum button_type button_type;
/* true if has changed (maintained by lw library) */
change_type change;
/* true if this widget itself has changed,
but not counting the other widgets found in the `next' field. */
change_type this_one_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;
/* 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, void* 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,
lw_callback highlight_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,
lw_callback highlight_cb);
LWLIB_ID lw_get_widget_id (Widget w);
int 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 *);
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);
/* Silly hack to assist with Lucid/Athena geometry management. */
void lw_refigure_widget (Widget w, Boolean doit);
/* Toolkit independent way of determining if an event occurred on a
menubar. */
Boolean lw_window_is_in_menubar (Window win, Widget menubar_widget);
/* Manage resizing: TRUE permits resizing widget w; FALSE disallows it. */
void lw_allow_resizing (Widget w, Boolean flag);
/* Set up the main window. */
void lw_set_main_areas (Widget parent,
Widget menubar,
Widget work_area);
/* Value is non-zero if LABEL is a menu separator. If it is, *TYPE is
set to an appropriate enumerator of type enum menu_separator.
MOTIF_P non-zero means map separator types not supported by Motif
to similar ones that are supported. */
int lw_separator_p (const char *label, enum menu_separator *type,
int motif_p);
#endif /* LWLIB_H */
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