[bpt/emacs.git] / src / frame.h

/* Define frame-object for GNU Emacs.
   Copyright (C) 1988, 1992 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs 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.

GNU Emacs 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, 675 Mass Ave, Cambridge, MA 02139, USA.  */


/* The structure representing a frame.

   We declare this even if MULTI_FRAME is not defined, because when
   we lack multi-frame support, we use one instance of this structure
   to represent the one frame we support.  This is cleaner than
   having miscellaneous random variables scattered about.  */

enum output_method
{ output_termcap, output_x_window };

struct frame
{
  int size;
  struct Lisp_Vector *next;

  /* glyphs as they appear on the frame */
  struct frame_glyphs *current_glyphs;

  /* glyphs we'd like to appear on the frame */
  struct frame_glyphs *desired_glyphs;

  /* See do_line_insertion_deletion_costs for info on these arrays. */
  /* Cost of inserting 1 line on this frame */
  int *insert_line_cost;
  /* Cost of deleting 1 line on this frame */
  int *delete_line_cost;
  /* Cost of inserting n lines on this frame */
  int *insert_n_lines_cost;
  /* Cost of deleting n lines on this frame */
  int *delete_n_lines_cost;

  /* glyphs for the mode line */
  struct frame_glyphs *temp_glyphs;

  /* Intended cursor position of this frame.
     Measured in characters, counting from upper left corner
     within the frame.  */
  int cursor_x;
  int cursor_y;

  /* Actual cursor position of this frame, and the character under it.
     (Not used for terminal frames.)  */
  int phys_cursor_x;
  int phys_cursor_y;
  /* This is handy for undrawing the cursor, because current_glyphs is
     not always accurate when in do_scrolling.  */
  GLYPH phys_cursor_glyph;

  /* Size of this frame, in units of characters.  */
  int height;
  int width;

  /* New height and width for pending size change.  0 if no change pending.  */
  int new_height, new_width;

  /* Name of this frame: a Lisp string.  See also `explicit_name'.  */
  Lisp_Object name;

  /* The frame which should recieve keystrokes that occur in this
     frame.  This is usually the frame itself, but if the frame is
     minibufferless, this points to the minibuffer frame when it is
     active.  */
  Lisp_Object focus_frame;

  /* This frame's root window.  Every frame has one.
     If the frame has only a minibuffer window, this is it.
     Otherwise, if the frame has a minibuffer window, this is its sibling.  */
  Lisp_Object root_window;

  /* This frame's selected window.
     Each frame has its own window hierarchy
     and one of the windows in it is selected within the frame.
     The selected window of the selected frame is Emacs's selected window.  */
  Lisp_Object selected_window;

  /* This frame's minibuffer window.
     Most frames have their own minibuffer windows,
     but only the selected frame's minibuffer window
     can actually appear to exist.  */
  Lisp_Object minibuffer_window;

  /* Parameter alist of this frame.
     These are the parameters specified when creating the frame
     or modified with modify-frame-parameters.  */
  Lisp_Object param_alist;

  /* The output method says how the contents of this frame
     are displayed.  It could be using termcap, or using an X window.  */
  enum output_method output_method;

  /* A structure of auxiliary data used for displaying the contents.
     struct x_display is used for X window frames;
     it is defined in xterm.h.  */
  union display { struct x_display *x; int nothing; } display;

  /* Nonzero if last attempt at redisplay on this frame was preempted.  */
  char display_preempted;

  /* Nonzero if frame is currently displayed.  */
  char visible;

  /* Nonzero if window is currently iconified.
     This and visible are mutually exclusive.  */
  char iconified;

  /* Nonzero if this frame should be redrawn.  */
  char garbaged;

  /* True if frame actually has a minibuffer window on it.
     0 if using a minibuffer window that isn't on this frame.  */
  char has_minibuffer;
     
  /* 0 means, if this frame has just one window,
     show no modeline for that window.  */
  char wants_modeline;

  /* Non-0 means raise this frame to the top of the heap when selected.  */
  char auto_raise;

  /* Non-0 means lower this frame to the bottom of the stack when left.  */
  char auto_lower;

  /* True if frame's root window can't be split.  */
  char no_split;

  /* If this is set, then Emacs won't change the frame name to indicate
     the current buffer, etcetera.  If the user explicitly sets the frame
     name, this gets set.  If the user sets the name to Qnil, this is
     cleared.  */
  char explicit_name;

  /* Storage for messages to this frame. */
  char *message_buf;

  /* Nonnegative if current redisplay should not do scroll computation
     for lines beyond a certain vpos.  This is the vpos.  */
  int scroll_bottom_vpos;
};

#ifdef MULTI_FRAME

typedef struct frame *FRAME_PTR;

#define XFRAME(p) ((struct frame *) XPNTR (p))
#define XSETFRAME(p, v) ((struct frame *) XSETPNTR (p, v))

#define WINDOW_FRAME(w) (w)->frame

#define FRAMEP(f) (XTYPE(f) == Lisp_Frame)
#define FRAME_LIVE_P(f) ((f)->display.nothing != 0)
#define FRAME_TERMCAP_P(f) ((f)->output_method == output_termcap)
#define FRAME_X_P(f) ((f)->output_method == output_x_window)
#define FRAME_MINIBUF_ONLY_P(f) \
  EQ (FRAME_ROOT_WINDOW (f), FRAME_MINIBUF_WINDOW (f))
#define FRAME_HAS_MINIBUF_P(f) ((f)->has_minibuffer)
#define FRAME_CURRENT_GLYPHS(f) (f)->current_glyphs
#define FRAME_DESIRED_GLYPHS(f) (f)->desired_glyphs
#define FRAME_TEMP_GLYPHS(f) (f)->temp_glyphs
#define FRAME_HEIGHT(f) (f)->height
#define FRAME_WIDTH(f) (f)->width
#define FRAME_NEW_HEIGHT(f) (f)->new_height
#define FRAME_NEW_WIDTH(f) (f)->new_width
#define FRAME_CURSOR_X(f) (f)->cursor_x
#define FRAME_CURSOR_Y(f) (f)->cursor_y
#define FRAME_VISIBLE_P(f) (f)->visible
#define SET_FRAME_GARBAGED(f) (frame_garbaged = 1, f->garbaged = 1)
#define FRAME_GARBAGED_P(f) (f)->garbaged
#define FRAME_NO_SPLIT_P(f) (f)->no_split
#define FRAME_WANTS_MODELINE_P(f) (f)->wants_modeline
#define FRAME_ICONIFIED_P(f) (f)->iconified
#define FRAME_MINIBUF_WINDOW(f) (f)->minibuffer_window
#define FRAME_ROOT_WINDOW(f) (f)->root_window
#define FRAME_SELECTED_WINDOW(f) (f)->selected_window
#define SET_GLYPHS_FRAME(glyphs,frame) ((glyphs)->frame = (frame))
#define FRAME_INSERT_COST(f) (f)->insert_line_cost    
#define FRAME_DELETE_COST(f) (f)->delete_line_cost    
#define FRAME_INSERTN_COST(f) (f)->insert_n_lines_cost
#define FRAME_DELETEN_COST(f) (f)->delete_n_lines_cost
#define FRAME_MESSAGE_BUF(f) (f)->message_buf
#define FRAME_SCROLL_BOTTOM_VPOS(f) (f)->scroll_bottom_vpos
#define FRAME_FOCUS_FRAME(f) (f)->focus_frame

#define CHECK_FRAME(x, i)				\
  {							\
    if (! FRAMEP (x))					\
      x = wrong_type_argument (Qframep, (x));		\
  }

#define CHECK_LIVE_FRAME(x, i)				\
  {							\
    if (! FRAMEP (x)					\
	|| ! FRAME_LIVE_P (XFRAME (x)))		\
      x = wrong_type_argument (Qlive_frame_p, (x));	\
  }

/* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
   `for' loop which iterates over the elements of Vframe_list.  The
   loop will set FRAME_VAR, a FRAME_PTR, to each frame in
   Vframe_list in succession and execute the statement.  LIST_VAR
   should be a Lisp_Object; it is used to iterate through the
   Vframe_list.  

   If MULTI_FRAME isn't defined, then this loop expands to something which 
   executes the statement once.  */
#define FOR_EACH_FRAME(list_var, frame_var)			\
  for ((list_var) = Vframe_list;				\
       (CONSP (list_var)					\
	&& (frame_var = XFRAME (XCONS (list_var)->car), 1));	\
       list_var = XCONS (list_var)->cdr)


extern Lisp_Object Qframep, Qlive_frame_p;

extern struct frame *selected_frame;
extern struct frame *last_nonminibuf_frame;

extern struct frame *make_terminal_frame ();
extern struct frame *make_frame ();
extern struct frame *make_minibuffer_frame ();
extern struct frame *make_frame_without_minibuffer ();

/* Nonzero means FRAME_MESSAGE_BUF (selected_frame) is being used by
   print.  */
extern int message_buf_print;

extern Lisp_Object Vframe_list;
extern Lisp_Object Vdefault_frame_alist;

extern Lisp_Object Vterminal_frame;
\f
#else /* not MULTI_FRAME */

/* These definitions are used in a single-frame version of Emacs.  */

#define FRAME_PTR int

/* A frame we use to store all the data concerning the screen when we
   don't have multiple frames.  Remember, if you store any data in it
   which needs to be protected from GC, you should staticpro that
   element explicitly.  */
extern struct frame the_only_frame;

extern int selected_frame;
extern int last_nonminibuf_frame;

/* Nonzero means FRAME_MESSAGE_BUF (selected_frame) is being used by
   print.  */
extern int message_buf_print;

#define XFRAME(f) selected_frame
#define WINDOW_FRAME(w) selected_frame

#define FRAMEP(f) (XTYPE(f) == Lisp_Frame)
#define FRAME_LIVE_P(f) 1
#define FRAME_TERMCAP_P(f) 1
#define FRAME_X_P(f) 0
#define FRAME_MINIBUF_ONLY_P(f) 0
#define FRAME_HAS_MINIBUF_P(f) 1
#define FRAME_CURRENT_GLYPHS(f) (the_only_frame.current_glyphs)
#define FRAME_DESIRED_GLYPHS(f) (the_only_frame.desired_glyphs)
#define FRAME_TEMP_GLYPHS(f) (the_only_frame.temp_glyphs)
#define FRAME_HEIGHT(f) (the_only_frame.height)
#define FRAME_WIDTH(f) (the_only_frame.width)
#define FRAME_NEW_HEIGHT(f) (the_only_frame.new_height)
#define FRAME_NEW_WIDTH(f) (the_only_frame.new_width)
#define FRAME_CURSOR_X(f) (the_only_frame.cursor_x)
#define FRAME_CURSOR_Y(f) (the_only_frame.cursor_y)
#define FRAME_VISIBLE_P(f) 1
#define SET_FRAME_GARBAGED(f) (frame_garbaged = 1)
#define FRAME_GARBAGED_P(f) (frame_garbaged)
#define FRAME_NO_SPLIT_P(f) 0
#define FRAME_WANTS_MODELINE_P(f) 1
#define FRAME_ICONIFIED_P(f) 0
#define FRAME_MINIBUF_WINDOW(f) (the_only_frame.root_window)
#define FRAME_ROOT_WINDOW(f) (the_only_frame.root_window)
#define FRAME_SELECTED_WINDOW(f) (selected_window)
#define SET_GLYPHS_FRAME(glyphs,frame) do ; while (0)
#define FRAME_INSERT_COST(frame)  (the_only_frame.insert_line_cost)
#define FRAME_DELETE_COST(frame)  (the_only_frame.delete_line_cost)
#define FRAME_INSERTN_COST(frame) (the_only_frame.insert_n_lines_cost)
#define FRAME_DELETEN_COST(frame) (the_only_frame.delete_n_lines_cost)
#define FRAME_MESSAGE_BUF(f) (the_only_frame.message_buf)
#define FRAME_SCROLL_BOTTOM_VPOS(f) (the_only_frame.scroll_bottom_vpos)
#define FRAME_FOCUS_FRAME(f) (0)

#define CHECK_FRAME(x, i) do; while (0)
#define CHECK_LIVE_FRAME(x, y) do; while (0)

/* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
   `for' loop which iterates over the elements of Vframe_list.  The
   loop will set FRAME_VAR, a FRAME_PTR, to each frame in
   Vframe_list in succession and execute the statement.  LIST_VAR
   should be a Lisp_Object; it is used to iterate through the
   Vframe_list.  

   If MULTI_FRAME _is_ defined, then this loop expands to a real
   `for' loop which traverses Vframe_list using LIST_VAR and
   FRAME_VAR.  */
#define FOR_EACH_FRAME(list_var, frame_var)			\
  for (frame_var = (FRAME_PTR) 1; frame_var; frame_var = (FRAME_PTR) 0)

#endif /* not MULTI_FRAME */
Commit	Line	Data
ff11dfa1	1	/* Define frame-object for GNU Emacs.
e5d77022	2	Copyright (C) 1988, 1992 Free Software Foundation, Inc.
efa4ce8b JB	3
	4	This file is part of GNU Emacs.
	5
	6	GNU Emacs is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
e5d77022	8	the Free Software Foundation; either version 2, or (at your option)
efa4ce8b JB	9	any later version.
	10
	11	GNU Emacs is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with GNU Emacs; see the file COPYING. If not, write to
	18	the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
	19
	20
ff11dfa1	21	/* The structure representing a frame.
e5d77022	22
ff11dfa1 JB	23	We declare this even if MULTI_FRAME is not defined, because when
	24	we lack multi-frame support, we use one instance of this structure
	25	to represent the one frame we support. This is cleaner than
e5d77022	26	having miscellaneous random variables scattered about. */
efa4ce8b JB	27
	28	enum output_method
	29	{ output_termcap, output_x_window };
	30
ff11dfa1	31	struct frame
efa4ce8b JB	32	{
	33	int size;
	34	struct Lisp_Vector *next;
	35
ff11dfa1 JB	36	/* glyphs as they appear on the frame */
ff11dfa1 JB	37	struct frame_glyphs *current_glyphs;
efa4ce8b	38
ff11dfa1 JB	39	/* glyphs we'd like to appear on the frame */
ff11dfa1 JB	40	struct frame_glyphs *desired_glyphs;
efa4ce8b	41
e5d77022	42	/* See do_line_insertion_deletion_costs for info on these arrays. */
ff11dfa1	43	/* Cost of inserting 1 line on this frame */
efa4ce8b	44	int *insert_line_cost;
ff11dfa1	45	/* Cost of deleting 1 line on this frame */
efa4ce8b	46	int *delete_line_cost;
ff11dfa1	47	/* Cost of inserting n lines on this frame */
efa4ce8b	48	int *insert_n_lines_cost;
ff11dfa1	49	/* Cost of deleting n lines on this frame */
efa4ce8b JB	50	int *delete_n_lines_cost;
	51
	52	/* glyphs for the mode line */
ff11dfa1	53	struct frame_glyphs *temp_glyphs;
efa4ce8b	54
ff11dfa1	55	/* Intended cursor position of this frame.
efa4ce8b	56	Measured in characters, counting from upper left corner
ff11dfa1	57	within the frame. */
efa4ce8b JB	58	int cursor_x;
	59	int cursor_y;
	60
ff11dfa1 JB	61	/* Actual cursor position of this frame, and the character under it.
ff11dfa1 JB	62	(Not used for terminal frames.) */
efa4ce8b JB	63	int phys_cursor_x;
efa4ce8b JB	64	int phys_cursor_y;
265a9e55 JB	65	/* This is handy for undrawing the cursor, because current_glyphs is
	66	not always accurate when in do_scrolling. */
	67	GLYPH phys_cursor_glyph;
efa4ce8b	68
ff11dfa1	69	/* Size of this frame, in units of characters. */
efa4ce8b JB	70	int height;
	71	int width;
	72
	73	/* New height and width for pending size change. 0 if no change pending. */
	74	int new_height, new_width;
	75
fbfed6f0	76	/* Name of this frame: a Lisp string. See also `explicit_name'. */
efa4ce8b JB	77	Lisp_Object name;
efa4ce8b JB	78
ff11dfa1 JB	79	/* The frame which should recieve keystrokes that occur in this
	80	frame. This is usually the frame itself, but if the frame is
	81	minibufferless, this points to the minibuffer frame when it is
0f79a4ae	82	active. */
ff11dfa1	83	Lisp_Object focus_frame;
0f79a4ae	84
ff11dfa1 JB	85	/* This frame's root window. Every frame has one.
	86	If the frame has only a minibuffer window, this is it.
	87	Otherwise, if the frame has a minibuffer window, this is its sibling. */
efa4ce8b JB	88	Lisp_Object root_window;
efa4ce8b JB	89
ff11dfa1 JB	90	/* This frame's selected window.
	91	Each frame has its own window hierarchy
	92	and one of the windows in it is selected within the frame.
	93	The selected window of the selected frame is Emacs's selected window. */
efa4ce8b JB	94	Lisp_Object selected_window;
efa4ce8b JB	95
ff11dfa1 JB	96	/* This frame's minibuffer window.
	97	Most frames have their own minibuffer windows,
	98	but only the selected frame's minibuffer window
efa4ce8b JB	99	can actually appear to exist. */
	100	Lisp_Object minibuffer_window;
	101
ff11dfa1 JB	102	/* Parameter alist of this frame.
	103	These are the parameters specified when creating the frame
	104	or modified with modify-frame-parameters. */
efa4ce8b JB	105	Lisp_Object param_alist;
efa4ce8b JB	106
ff11dfa1	107	/* The output method says how the contents of this frame
efa4ce8b JB	108	are displayed. It could be using termcap, or using an X window. */
	109	enum output_method output_method;
	110
	111	/* A structure of auxiliary data used for displaying the contents.
ff11dfa1	112	struct x_display is used for X window frames;
efa4ce8b JB	113	it is defined in xterm.h. */
	114	union display { struct x_display *x; int nothing; } display;
	115
ff11dfa1	116	/* Nonzero if last attempt at redisplay on this frame was preempted. */
efa4ce8b JB	117	char display_preempted;
efa4ce8b JB	118
ff11dfa1	119	/* Nonzero if frame is currently displayed. */
efa4ce8b JB	120	char visible;
	121
	122	/* Nonzero if window is currently iconified.
	123	This and visible are mutually exclusive. */
	124	char iconified;
	125
ff11dfa1	126	/* Nonzero if this frame should be redrawn. */
efa4ce8b JB	127	char garbaged;
efa4ce8b JB	128
ff11dfa1 JB	129	/* True if frame actually has a minibuffer window on it.
ff11dfa1 JB	130	0 if using a minibuffer window that isn't on this frame. */
efa4ce8b JB	131	char has_minibuffer;
efa4ce8b JB	132
ff11dfa1	133	/* 0 means, if this frame has just one window,
efa4ce8b JB	134	show no modeline for that window. */
	135	char wants_modeline;
	136
ff11dfa1	137	/* Non-0 means raise this frame to the top of the heap when selected. */
efa4ce8b JB	138	char auto_raise;
efa4ce8b JB	139
ff11dfa1	140	/* Non-0 means lower this frame to the bottom of the stack when left. */
efa4ce8b JB	141	char auto_lower;
efa4ce8b JB	142
ff11dfa1	143	/* True if frame's root window can't be split. */
efa4ce8b JB	144	char no_split;
efa4ce8b JB	145
fbfed6f0 JB	146	/* If this is set, then Emacs won't change the frame name to indicate
	147	the current buffer, etcetera. If the user explicitly sets the frame
	148	name, this gets set. If the user sets the name to Qnil, this is
	149	cleared. */
	150	char explicit_name;
	151
ff11dfa1	152	/* Storage for messages to this frame. */
efa4ce8b JB	153	char *message_buf;
	154
	155	/* Nonnegative if current redisplay should not do scroll computation
	156	for lines beyond a certain vpos. This is the vpos. */
	157	int scroll_bottom_vpos;
	158	};
	159
ff11dfa1 JB	160	#ifdef MULTI_FRAME
	161
	162	typedef struct frame *FRAME_PTR;
	163
	164	#define XFRAME(p) ((struct frame *) XPNTR (p))
	165	#define XSETFRAME(p, v) ((struct frame *) XSETPNTR (p, v))
	166
	167	#define WINDOW_FRAME(w) (w)->frame
	168
	169	#define FRAMEP(f) (XTYPE(f) == Lisp_Frame)
	170	#define FRAME_LIVE_P(f) ((f)->display.nothing != 0)
10a4cc63 JB	171	#define FRAME_TERMCAP_P(f) ((f)->output_method == output_termcap)
10a4cc63 JB	172	#define FRAME_X_P(f) ((f)->output_method == output_x_window)
ff11dfa1 JB	173	#define FRAME_MINIBUF_ONLY_P(f) \
ff11dfa1 JB	174	EQ (FRAME_ROOT_WINDOW (f), FRAME_MINIBUF_WINDOW (f))
10a4cc63	175	#define FRAME_HAS_MINIBUF_P(f) ((f)->has_minibuffer)
ff11dfa1 JB	176	#define FRAME_CURRENT_GLYPHS(f) (f)->current_glyphs
	177	#define FRAME_DESIRED_GLYPHS(f) (f)->desired_glyphs
	178	#define FRAME_TEMP_GLYPHS(f) (f)->temp_glyphs
	179	#define FRAME_HEIGHT(f) (f)->height
	180	#define FRAME_WIDTH(f) (f)->width
	181	#define FRAME_NEW_HEIGHT(f) (f)->new_height
	182	#define FRAME_NEW_WIDTH(f) (f)->new_width
	183	#define FRAME_CURSOR_X(f) (f)->cursor_x
	184	#define FRAME_CURSOR_Y(f) (f)->cursor_y
	185	#define FRAME_VISIBLE_P(f) (f)->visible
	186	#define SET_FRAME_GARBAGED(f) (frame_garbaged = 1, f->garbaged = 1)
	187	#define FRAME_GARBAGED_P(f) (f)->garbaged
	188	#define FRAME_NO_SPLIT_P(f) (f)->no_split
	189	#define FRAME_WANTS_MODELINE_P(f) (f)->wants_modeline
	190	#define FRAME_ICONIFIED_P(f) (f)->iconified
	191	#define FRAME_MINIBUF_WINDOW(f) (f)->minibuffer_window
	192	#define FRAME_ROOT_WINDOW(f) (f)->root_window
	193	#define FRAME_SELECTED_WINDOW(f) (f)->selected_window
	194	#define SET_GLYPHS_FRAME(glyphs,frame) ((glyphs)->frame = (frame))
	195	#define FRAME_INSERT_COST(f) (f)->insert_line_cost
	196	#define FRAME_DELETE_COST(f) (f)->delete_line_cost
	197	#define FRAME_INSERTN_COST(f) (f)->insert_n_lines_cost
	198	#define FRAME_DELETEN_COST(f) (f)->delete_n_lines_cost
	199	#define FRAME_MESSAGE_BUF(f) (f)->message_buf
	200	#define FRAME_SCROLL_BOTTOM_VPOS(f) (f)->scroll_bottom_vpos
	201	#define FRAME_FOCUS_FRAME(f) (f)->focus_frame
	202
	203	#define CHECK_FRAME(x, i) \
265a9e55	204	{ \
ff11dfa1 JB	205	if (! FRAMEP (x)) \
ff11dfa1 JB	206	x = wrong_type_argument (Qframep, (x)); \
265a9e55 JB	207	}
265a9e55 JB	208
ff11dfa1	209	#define CHECK_LIVE_FRAME(x, i) \
265a9e55	210	{ \
ff11dfa1 JB	211	if (! FRAMEP (x) \
	212	\|\| ! FRAME_LIVE_P (XFRAME (x))) \
	213	x = wrong_type_argument (Qlive_frame_p, (x)); \
265a9e55 JB	214	}
265a9e55 JB	215
ff11dfa1 JB	216	/* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
	217	`for' loop which iterates over the elements of Vframe_list. The
	218	loop will set FRAME_VAR, a FRAME_PTR, to each frame in
	219	Vframe_list in succession and execute the statement. LIST_VAR
e5d77022	220	should be a Lisp_Object; it is used to iterate through the
ff11dfa1	221	Vframe_list.
e5d77022	222
ff11dfa1	223	If MULTI_FRAME isn't defined, then this loop expands to something which
e5d77022	224	executes the statement once. */
ff11dfa1 JB	225	#define FOR_EACH_FRAME(list_var, frame_var) \
ff11dfa1 JB	226	for ((list_var) = Vframe_list; \
e5d77022	227	(CONSP (list_var) \
ff11dfa1	228	&& (frame_var = XFRAME (XCONS (list_var)->car), 1)); \
e5d77022 JB	229	list_var = XCONS (list_var)->cdr)
	230
	231
ff11dfa1	232	extern Lisp_Object Qframep, Qlive_frame_p;
efa4ce8b	233
ff11dfa1 JB	234	extern struct frame *selected_frame;
ff11dfa1 JB	235	extern struct frame *last_nonminibuf_frame;
efa4ce8b	236
ff11dfa1 JB	237	extern struct frame *make_terminal_frame ();
	238	extern struct frame *make_frame ();
	239	extern struct frame *make_minibuffer_frame ();
	240	extern struct frame *make_frame_without_minibuffer ();
efa4ce8b	241
ff11dfa1	242	/* Nonzero means FRAME_MESSAGE_BUF (selected_frame) is being used by
e5d77022 JB	243	print. */
	244	extern int message_buf_print;
	245
ff11dfa1 JB	246	extern Lisp_Object Vframe_list;
ff11dfa1 JB	247	extern Lisp_Object Vdefault_frame_alist;
efa4ce8b	248
ff11dfa1	249	extern Lisp_Object Vterminal_frame;
efa4ce8b	250	\f
ff11dfa1	251	#else /* not MULTI_FRAME */
efa4ce8b	252
ff11dfa1	253	/* These definitions are used in a single-frame version of Emacs. */
efa4ce8b	254
ff11dfa1	255	#define FRAME_PTR int
efa4ce8b	256
ce4e9d43 JB	257	/* A frame we use to store all the data concerning the screen when we
	258	don't have multiple frames. Remember, if you store any data in it
	259	which needs to be protected from GC, you should staticpro that
	260	element explicitly. */
ff11dfa1	261	extern struct frame the_only_frame;
e5d77022	262
ff11dfa1 JB	263	extern int selected_frame;
ff11dfa1 JB	264	extern int last_nonminibuf_frame;
e5d77022	265
ff11dfa1	266	/* Nonzero means FRAME_MESSAGE_BUF (selected_frame) is being used by
e5d77022 JB	267	print. */
e5d77022 JB	268	extern int message_buf_print;
efa4ce8b	269
ff11dfa1 JB	270	#define XFRAME(f) selected_frame
	271	#define WINDOW_FRAME(w) selected_frame
	272
	273	#define FRAMEP(f) (XTYPE(f) == Lisp_Frame)
	274	#define FRAME_LIVE_P(f) 1
10a4cc63 JB	275	#define FRAME_TERMCAP_P(f) 1
10a4cc63 JB	276	#define FRAME_X_P(f) 0
ff11dfa1	277	#define FRAME_MINIBUF_ONLY_P(f) 0
10a4cc63	278	#define FRAME_HAS_MINIBUF_P(f) 1
ce4e9d43 JB	279	#define FRAME_CURRENT_GLYPHS(f) (the_only_frame.current_glyphs)
	280	#define FRAME_DESIRED_GLYPHS(f) (the_only_frame.desired_glyphs)
	281	#define FRAME_TEMP_GLYPHS(f) (the_only_frame.temp_glyphs)
	282	#define FRAME_HEIGHT(f) (the_only_frame.height)
	283	#define FRAME_WIDTH(f) (the_only_frame.width)
	284	#define FRAME_NEW_HEIGHT(f) (the_only_frame.new_height)
	285	#define FRAME_NEW_WIDTH(f) (the_only_frame.new_width)
	286	#define FRAME_CURSOR_X(f) (the_only_frame.cursor_x)
	287	#define FRAME_CURSOR_Y(f) (the_only_frame.cursor_y)
ff11dfa1 JB	288	#define FRAME_VISIBLE_P(f) 1
ff11dfa1 JB	289	#define SET_FRAME_GARBAGED(f) (frame_garbaged = 1)
ce4e9d43	290	#define FRAME_GARBAGED_P(f) (frame_garbaged)
ff11dfa1 JB	291	#define FRAME_NO_SPLIT_P(f) 0
	292	#define FRAME_WANTS_MODELINE_P(f) 1
	293	#define FRAME_ICONIFIED_P(f) 0
fbfed6f0 JB	294	#define FRAME_MINIBUF_WINDOW(f) (the_only_frame.root_window)
fbfed6f0 JB	295	#define FRAME_ROOT_WINDOW(f) (the_only_frame.root_window)
ce4e9d43 JB	296	#define FRAME_SELECTED_WINDOW(f) (selected_window)
	297	#define SET_GLYPHS_FRAME(glyphs,frame) do ; while (0)
	298	#define FRAME_INSERT_COST(frame) (the_only_frame.insert_line_cost)
	299	#define FRAME_DELETE_COST(frame) (the_only_frame.delete_line_cost)
	300	#define FRAME_INSERTN_COST(frame) (the_only_frame.insert_n_lines_cost)
	301	#define FRAME_DELETEN_COST(frame) (the_only_frame.delete_n_lines_cost)
	302	#define FRAME_MESSAGE_BUF(f) (the_only_frame.message_buf)
	303	#define FRAME_SCROLL_BOTTOM_VPOS(f) (the_only_frame.scroll_bottom_vpos)
	304	#define FRAME_FOCUS_FRAME(f) (0)
ff11dfa1	305
10a4cc63 JB	306	#define CHECK_FRAME(x, i) do; while (0)
10a4cc63 JB	307	#define CHECK_LIVE_FRAME(x, y) do; while (0)
ff11dfa1 JB	308
	309	/* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
	310	`for' loop which iterates over the elements of Vframe_list. The
	311	loop will set FRAME_VAR, a FRAME_PTR, to each frame in
	312	Vframe_list in succession and execute the statement. LIST_VAR
e5d77022	313	should be a Lisp_Object; it is used to iterate through the
ff11dfa1	314	Vframe_list.
e5d77022	315
ff11dfa1 JB	316	If MULTI_FRAME _is_ defined, then this loop expands to a real
	317	`for' loop which traverses Vframe_list using LIST_VAR and
	318	FRAME_VAR. */
	319	#define FOR_EACH_FRAME(list_var, frame_var) \
	320	for (frame_var = (FRAME_PTR) 1; frame_var; frame_var = (FRAME_PTR) 0)
efa4ce8b	321
ff11dfa1	322	#endif /* not MULTI_FRAME */