/* our datatypes and global variables 
 * Copyright (C) 2000, 2001 Shawn Betts
 *
 * This file is part of ratpoison.
 *
 * ratpoison 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 2, or (at your option)
 * any later version.
 *
 * ratpoison 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 this software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA
 */

#ifndef _RATPOISON_DATA_H
#define _RATPOISON_DATA_H

#include "linkedlist.h"
#include "number.h"

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

#define FONT_HEIGHT(f) ((f)->max_bounds.ascent + (f)->max_bounds.descent)

#define WIN_EVENTS (StructureNotifyMask | PropertyChangeMask | ColormapChangeMask | FocusChangeMask)
/* EMPTY is used when a frame doesn't contain a window, or a window
   doesn't have a frame. Any time a field refers to the number of a
   window/frame/screen/etc, Use EMPTY to denote a lack there of. */
#define EMPTY -1

#define STYLE_ROW    0 
#define STYLE_COLUMN 1

typedef struct rp_window rp_window;
typedef struct screen_info screen_info;
typedef struct rp_action rp_action;
typedef struct rp_window_frame rp_window_frame;

struct rp_window_frame
{
  int number;
  int x, y, width, height;

  /* The number of the window that is focused in this frame. */
  int win_number;

  /* For determining the last frame. */
  int last_access;

  struct list_head node;
};

struct rp_window
{
  screen_info *scr;
  Window w;
  int number;
  int state;
  int last_access;
  int named;
  
  /* Window name hints. */
  char *user_name;
  char *wm_name;
  char *res_name;
  char *res_class;

  /* Dimensions */
  int x, y, width, height, border;

  /* WM Hints */
  XSizeHints *hints;

  /* Colormap */
  Colormap colormap;

  /* Is this a transient window? */
  int transient;
  Window transient_for;

  /* Saved mouse position */
  int mouse_x, mouse_y;

  /* The alignment of the window. Decides to what side or corner the
     window sticks to. */
  int gravity;

  /* A window can be visible inside a frame but not the frame's
     current window. This keeps track of what frame the window was
     mapped into. */
  int frame_number;

  struct list_head node;
};

struct screen_info
{
  GC normal_gc;
  XWindowAttributes root_attr;
  Window root, bar_window, key_window, input_window, frame_window, help_window;
  int bar_is_raised;
  int screen_num;		/* Our screen number as dictated my X */
  Colormap def_cmap;
  Cursor rat;
  unsigned long fg_color, bg_color; /* The pixel color. */

  char *display_string;

  /* A list of frames that may or may not contain windows. There should
     always be one in the list. */
  struct list_head rp_window_frames;

  /* Keep track of which numbers have been given to frames. */
  struct numset *frames_numset;

  /* The number of the currently focused frame. One for each screen so
     when you switch screens the focus doesn't get frobbed. */
  int current_frame;
};

struct rp_action
{
  KeySym key;
  unsigned int state;
  void *data;			/* misc data to be passed to the function */
/*   void (*func)(void *); */
};

struct rp_key
{
  KeySym sym;
  unsigned int state;
};

struct rp_defaults
{
  /* Default positions for new normal windows, transient windows, and
     normal windows with maxsize hints. */
  int win_gravity;
  int trans_gravity;
  int maxsize_gravity;

  int input_window_size;
  int window_border_width;

  int bar_x_padding;
  int bar_y_padding;
  int bar_location;
  int bar_timeout;
  int bar_border_width;
  
  int frame_indicator_timeout;
  int frame_resize_unit;

  int padding_left;
  int padding_right;
  int padding_top;
  int padding_bottom;

  XFontStruct *font;

  int wait_for_key_cursor;

  char *window_fmt;

  /* Which name to use: wm_name, res_name, res_class. */
  int win_name;

  int startup_message;

  /* Decides whether the window list is displayed in a row or a
     column. */
  int window_list_style;

  /* Pointer warping toggle. */
  int warp;
};

/* Information about a child process. */
struct rp_child_info
{
  int pid;
  int status;
};

/* When a child process exits this structure holds the information
   about it to be used to report back to the user. */
extern struct rp_child_info child_info;

extern struct rp_defaults defaults;

/* The prefix key also known as the command character under screen. */
extern struct rp_key prefix_key;

/* These _sentinel pointers point to a special rp_window whose next
   pointer points to the head of the list and whose prev pointer
   points to the tail. This is done to simplify removing an element
   from the list: since there are no head and tail global variable
   pointers that need to be updated, functions that manipulate
   elements in a list don't need to know what list they belong to. The
   last element's next pointer points to the sentinel as does the
   first element's prev pointer. An empty list is represented by the
   sentinel's prev and next pointers pointing to itself. */

/* A list of mapped windows. These windows show up in the window
   list and have a number assigned to them. */
extern struct list_head rp_mapped_window;

/* A list of unmapped windows. These windows do not have a number
   assigned to them and are not visible/active. */
extern struct list_head rp_unmapped_window;

extern int rp_current_screen;
extern screen_info *screens;
extern int num_screens;

extern XEvent rp_current_event;

extern Display *dpy;
extern Atom rp_command;
extern Atom rp_command_request;
extern Atom rp_command_result;

extern Atom wm_name;
extern Atom wm_state;
extern Atom wm_change_state;
extern Atom wm_protocols;
extern Atom wm_delete;
extern Atom wm_take_focus;
extern Atom wm_colormaps;

/* mouse properties */
extern int rat_x;
extern int rat_y;
extern int rat_visible;

/* When unmapping or deleting windows, it is sometimes helpful to
   ignore a bad window when attempting to clean the window up. This
   does just that when set to 1 */
extern int ignore_badwindow;

/* Arguments passed to ratpoison. */
extern char **myargv;

/* These defines should be used to specify the modifier mask for keys
   and they are translated into the X11 modifier mask when the time
   comes to compare modifier masks. */
#define RP_CONTROL_MASK 1
#define RP_META_MASK 	2
#define RP_ALT_MASK 	4
#define RP_SUPER_MASK 	8
#define RP_HYPER_MASK 	16

struct modifier_info
{
/*   unsigned int mode_switch_mask; */
  unsigned int meta_mod_mask;
  unsigned int alt_mod_mask;
  unsigned int super_mod_mask;
  unsigned int hyper_mod_mask;

  /* Keep track of these because they mess up the grab and should be
     ignored. */  
  unsigned int num_lock_mask;
  unsigned int scroll_lock_mask; 
};

/* Keeps track of which mod mask each modifier is under. */
extern struct modifier_info rp_modifier_info;

/* nonzero if an alarm signal was raised. This means ratpoison should
   hide its popup windows. */
extern int alarm_signalled;
extern int kill_signalled;
extern int hup_signalled;
extern int chld_signalled;

/* rudeness levels */
extern int rp_honour_transient_raise;
extern int rp_honour_normal_raise;
extern int rp_honour_transient_map;
extern int rp_honour_normal_map;

/* Keep track of X11 error messages. */
extern char *rp_error_msg;

/* Number sets for windows. */
extern struct numset *rp_window_numset;

#endif /* _RATPOISON_DATA_H */