/*
 * WidgetInfo.h -- Radar Widget record.
 *
 * Authors		: Patrick Lecoanet.
 * Creation date	: Mon Feb  1 12:13:24 1999
 *
 * $Id$
 */

/*
 *  Copyright (c) 1993 - 1999 CENA, Patrick Lecoanet --
 *
 * This code is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This code 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this code; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */


#ifndef _WidgetInfo_h
#define _WidgetInfo_h


#include <X11/Xlib.h>
#include <X11/Xutil.h>

#include "Item.h"
#include "Transfo.h"
#include "Types.h"


#ifndef NUM_ALPHA_STEPS
#define NUM_ALPHA_STEPS		16
#endif

/* Constants for flags */

#define REPICK_IN_PROGRESS	1
#define LEFT_GRABBED_ITEM	2
#define INTERNAL_NEED_REPICK	8


typedef struct _WidgetInfo {
  Tcl_Interp		*interp;	/* Interpreter associated with widget.	*/
  Tcl_Command		cmd;		/* Token for radar widget command.	*/
  Tcl_HashTable		*tag_table;	/* Hash table for object tags.		*/
  Tcl_HashTable		*id_table;	/* Hash table for object ids.		*/
  Tcl_HashTable		*t_table;	/* Hash table for transformations.	*/
  unsigned long		obj_id;		/* Id for the next new object.		*/
  Tk_BindingTable	binding_table;	/* Table of all bindings currently defined
					 * for this radar.  NULL means that no
					 * bindings exist, so the table hasn't been
					 * created.  Each "object" used for this
					 * table is either a Tk_Uid for a tag or
					 * the address of an item named by id.	*/
  int			state;		/* Last known modifier state.  Used to
					 * defer picking a new current object
					 * while buttons are down. */
  Item			current_item;	/* Item picked from previous pick sequence */
  Item			new_item;	/* Item picked from current pick sequence */
  int			current_part;
  int			new_part;
  XEvent		pick_event;	/* Event used to forge fake events and to do
					 * repicks. */
  RadarBool		update_pending;	/* True means there is a pending graphic
					 * update. */
  RadarBBox		exposed_area;	/* Window area that need to be rexposed.
					 * It is distinct from redraw_area which
					 * is updated when items are changed. */
  Pixmap		alpha_stipples[NUM_ALPHA_STEPS];
  int			border_width;
  int			opt_width;	/* Window size as stated/reported by the option. */
  int			opt_height;	/* They are equal to the width/height fields after
					 * the actual resize. They may to be equal if
					 * the resize is not acknowledged by the geo
					 * manager. */
  Tk_3DBorder		bg_border;	/* The data describing the background
					 * and border colors. */
  ReliefStyle		relief;		/* The border relief. */
  
  /* Tracks global resources	*/
  int			track_managed_history_size;	/* Size of history for tracks	*/
  RadarBool		track_manage_history;	/* Tell if the tracks manage their	*/
						/* histories.				*/
  int			speed_vector_length; /* How long (in time) are speedvectors*/
#ifdef OM
  int			om_group_id;	/* Tell which group contains tracks to be	*/
  Item			om_group;	/* processed for anti label overlap.		*/
#endif

  /* Maps global resources */
  RadarFont		map_text_font;		/* Font for texts in Map items		*/
  Pixmap		map_distance_symbol;
						/* display distance marks along Map	*/
						/* lines.				*/
  /* Transformer */
  RadarTransfo		*current_transfo;
  RadarList		transfo_stack;
  ClipState		*current_clip;
  RadarList		clip_stack;
  
  /* Others */
  RadarColor		fore_color;		/* Default foreground used in new items */
  RadarColor		back_color;		/* Color of the radar background.	*/
  RadarColor		bbox_color;		/* Color used to draw bboxes (debug).	*/
  Cursor		cursor;			/* Cursor displayed in radar window.	*/
  RadarBool		draw_bboxes;		/* Draw item's bboxes (debug).		*/
  
  int			pick_aperture;		/* size of pick aperture in pixels	*/
  RadarFont		font;			/* Default font used in new items */
  RadarBool		reshape;		/* Use the Shape Extension on the window.*/
  RadarBool		full_reshape;		/* Use it on the top level window.	*/
  char			*tile_name;
  RadarImage		tile;
  
  /* Radar private resources */
  int			width;			/* Actual window dimension. */
  int			height;

  /* Graphic variables */
  Display		*dpy;			/* The display of the widget window.	*/
  Screen		*screen;
  RadarWindow		win;			/* The window of the widget. */
  RadarBool		realized;
  Pixmap		draw_buffer;		/* Pixmap for double buffering		*/
  RadarBBox		damaged_area;		/* The current damaged rectangle	*/
  Region		damaged_region;
  GC			gc;
  RadarBool		has_x_shm;		/* Tell if the SHM X11 ext is avail.	*/
  RadarBool		has_x_shape;		/* Tell if she Shape X ext. is avail.	*/
  RadarBool		has_x_input;		/* Tell if she X input ext. is avail.	*/
  int			events_flags;		/* NEED_REPICK et al */
  Window		real_top;
  Item			top_group;
  RadarList		work_item_list;		/* Temporary item list used in internal
						 * works. */
  RadarList		work_pts;		/* Temporary point list. */

  /* Perf measurement variables. */
  RadarBool		monitoring;
  int			num_updates;
  int			last_time;
  int			total_time;
} WidgetInfo;

  
#ifdef __CPLUSPLUS__
}
#endif

#endif /* _WidgetInfo_h */