[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.  */
  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;

  /* 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_IS_TERMCAP(f) ((f)->output_method == output_termcap)
#define FRAME_IS_X(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(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

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_IS_TERMCAP(f) 1
#define FRAME_IS_X(f) 0
#define FRAME_MINIBUF_ONLY_P(f) 0
#define FRAME_HAS_MINIBUF(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) minibuf_window
#define FRAME_ROOT_WINDOW(f) the_only_frame.root_window
#define FRAME_SELECTED_WINDOW(f) selected_window
#define SET_GLYPHS_FRAME(glyphs,frame)
#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) { ; }
#define CHECK_LIVE_FRAME(x, y) { ; }

/* 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
ff11dfa1	76	/* Name of this frame: a Lisp string. */
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
ff11dfa1	146	/* Storage for messages to this frame. */
efa4ce8b JB	147	char *message_buf;
	148
	149	/* Nonnegative if current redisplay should not do scroll computation
	150	for lines beyond a certain vpos. This is the vpos. */
	151	int scroll_bottom_vpos;
	152	};
	153
ff11dfa1 JB	154	#ifdef MULTI_FRAME
	155
	156	typedef struct frame *FRAME_PTR;
	157
	158	#define XFRAME(p) ((struct frame *) XPNTR (p))
	159	#define XSETFRAME(p, v) ((struct frame *) XSETPNTR (p, v))
	160
	161	#define WINDOW_FRAME(w) (w)->frame
	162
	163	#define FRAMEP(f) (XTYPE(f) == Lisp_Frame)
	164	#define FRAME_LIVE_P(f) ((f)->display.nothing != 0)
	165	#define FRAME_IS_TERMCAP(f) ((f)->output_method == output_termcap)
	166	#define FRAME_IS_X(f) ((f)->output_method == output_x_window)
	167	#define FRAME_MINIBUF_ONLY_P(f) \
	168	EQ (FRAME_ROOT_WINDOW (f), FRAME_MINIBUF_WINDOW (f))
	169	#define FRAME_HAS_MINIBUF(f) ((f)->has_minibuffer)
	170	#define FRAME_CURRENT_GLYPHS(f) (f)->current_glyphs
	171	#define FRAME_DESIRED_GLYPHS(f) (f)->desired_glyphs
	172	#define FRAME_TEMP_GLYPHS(f) (f)->temp_glyphs
	173	#define FRAME_HEIGHT(f) (f)->height
	174	#define FRAME_WIDTH(f) (f)->width
	175	#define FRAME_NEW_HEIGHT(f) (f)->new_height
	176	#define FRAME_NEW_WIDTH(f) (f)->new_width
	177	#define FRAME_CURSOR_X(f) (f)->cursor_x
	178	#define FRAME_CURSOR_Y(f) (f)->cursor_y
	179	#define FRAME_VISIBLE_P(f) (f)->visible
	180	#define SET_FRAME_GARBAGED(f) (frame_garbaged = 1, f->garbaged = 1)
	181	#define FRAME_GARBAGED_P(f) (f)->garbaged
	182	#define FRAME_NO_SPLIT_P(f) (f)->no_split
	183	#define FRAME_WANTS_MODELINE_P(f) (f)->wants_modeline
	184	#define FRAME_ICONIFIED_P(f) (f)->iconified
	185	#define FRAME_MINIBUF_WINDOW(f) (f)->minibuffer_window
	186	#define FRAME_ROOT_WINDOW(f) (f)->root_window
	187	#define FRAME_SELECTED_WINDOW(f) (f)->selected_window
	188	#define SET_GLYPHS_FRAME(glyphs,frame) ((glyphs)->frame = (frame))
	189	#define FRAME_INSERT_COST(f) (f)->insert_line_cost
	190	#define FRAME_DELETE_COST(f) (f)->delete_line_cost
	191	#define FRAME_INSERTN_COST(f) (f)->insert_n_lines_cost
	192	#define FRAME_DELETEN_COST(f) (f)->delete_n_lines_cost
	193	#define FRAME_MESSAGE_BUF(f) (f)->message_buf
	194	#define FRAME_SCROLL_BOTTOM_VPOS(f) (f)->scroll_bottom_vpos
	195	#define FRAME_FOCUS_FRAME(f) (f)->focus_frame
	196
	197	#define CHECK_FRAME(x, i) \
265a9e55	198	{ \
ff11dfa1 JB	199	if (! FRAMEP (x)) \
ff11dfa1 JB	200	x = wrong_type_argument (Qframep, (x)); \
265a9e55 JB	201	}
265a9e55 JB	202
ff11dfa1	203	#define CHECK_LIVE_FRAME(x, i) \
265a9e55	204	{ \
ff11dfa1 JB	205	if (! FRAMEP (x) \
	206	\|\| ! FRAME_LIVE_P (XFRAME (x))) \
	207	x = wrong_type_argument (Qlive_frame_p, (x)); \
265a9e55 JB	208	}
265a9e55 JB	209
ff11dfa1 JB	210	/* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
	211	`for' loop which iterates over the elements of Vframe_list. The
	212	loop will set FRAME_VAR, a FRAME_PTR, to each frame in
	213	Vframe_list in succession and execute the statement. LIST_VAR
e5d77022	214	should be a Lisp_Object; it is used to iterate through the
ff11dfa1	215	Vframe_list.
e5d77022	216
ff11dfa1	217	If MULTI_FRAME isn't defined, then this loop expands to something which
e5d77022	218	executes the statement once. */
ff11dfa1 JB	219	#define FOR_EACH_FRAME(list_var, frame_var) \
ff11dfa1 JB	220	for ((list_var) = Vframe_list; \
e5d77022	221	(CONSP (list_var) \
ff11dfa1	222	&& (frame_var = XFRAME (XCONS (list_var)->car), 1)); \
e5d77022 JB	223	list_var = XCONS (list_var)->cdr)
	224
	225
ff11dfa1	226	extern Lisp_Object Qframep, Qlive_frame_p;
efa4ce8b	227
ff11dfa1 JB	228	extern struct frame *selected_frame;
ff11dfa1 JB	229	extern struct frame *last_nonminibuf_frame;
efa4ce8b	230
ff11dfa1 JB	231	extern struct frame *make_terminal_frame ();
	232	extern struct frame *make_frame ();
	233	extern struct frame *make_minibuffer_frame ();
	234	extern struct frame *make_frame_without_minibuffer ();
efa4ce8b	235
ff11dfa1	236	/* Nonzero means FRAME_MESSAGE_BUF (selected_frame) is being used by
e5d77022 JB	237	print. */
	238	extern int message_buf_print;
	239
ff11dfa1 JB	240	extern Lisp_Object Vframe_list;
ff11dfa1 JB	241	extern Lisp_Object Vdefault_frame_alist;
efa4ce8b	242
ff11dfa1	243	extern Lisp_Object Vterminal_frame;
efa4ce8b	244	\f
ff11dfa1	245	#else /* not MULTI_FRAME */
efa4ce8b	246
ff11dfa1	247	/* These definitions are used in a single-frame version of Emacs. */
efa4ce8b	248
ff11dfa1	249	#define FRAME_PTR int
efa4ce8b	250
ff11dfa1	251	extern struct frame the_only_frame;
e5d77022	252
ff11dfa1 JB	253	extern int selected_frame;
ff11dfa1 JB	254	extern int last_nonminibuf_frame;
e5d77022	255
ff11dfa1	256	/* Nonzero means FRAME_MESSAGE_BUF (selected_frame) is being used by
e5d77022 JB	257	print. */
e5d77022 JB	258	extern int message_buf_print;
efa4ce8b	259
ff11dfa1 JB	260	#define XFRAME(f) selected_frame
	261	#define WINDOW_FRAME(w) selected_frame
	262
	263	#define FRAMEP(f) (XTYPE(f) == Lisp_Frame)
	264	#define FRAME_LIVE_P(f) 1
	265	#define FRAME_IS_TERMCAP(f) 1
	266	#define FRAME_IS_X(f) 0
	267	#define FRAME_MINIBUF_ONLY_P(f) 0
	268	#define FRAME_HAS_MINIBUF(f) 1
	269	#define FRAME_CURRENT_GLYPHS(f) the_only_frame.current_glyphs
	270	#define FRAME_DESIRED_GLYPHS(f) the_only_frame.desired_glyphs
	271	#define FRAME_TEMP_GLYPHS(f) the_only_frame.temp_glyphs
	272	#define FRAME_HEIGHT(f) the_only_frame.height
	273	#define FRAME_WIDTH(f) the_only_frame.width
	274	#define FRAME_NEW_HEIGHT(f) the_only_frame.new_height
	275	#define FRAME_NEW_WIDTH(f) the_only_frame.new_width
	276	#define FRAME_CURSOR_X(f) the_only_frame.cursor_x
	277	#define FRAME_CURSOR_Y(f) the_only_frame.cursor_y
	278	#define FRAME_VISIBLE_P(f) 1
	279	#define SET_FRAME_GARBAGED(f) (frame_garbaged = 1)
	280	#define FRAME_GARBAGED_P(f) frame_garbaged
	281	#define FRAME_NO_SPLIT_P(f) 0
	282	#define FRAME_WANTS_MODELINE_P(f) 1
	283	#define FRAME_ICONIFIED_P(f) 0
	284	#define FRAME_MINIBUF_WINDOW(f) minibuf_window
	285	#define FRAME_ROOT_WINDOW(f) the_only_frame.root_window
	286	#define FRAME_SELECTED_WINDOW(f) selected_window
	287	#define SET_GLYPHS_FRAME(glyphs,frame)
	288	#define FRAME_INSERT_COST(frame) the_only_frame.insert_line_cost
	289	#define FRAME_DELETE_COST(frame) the_only_frame.delete_line_cost
	290	#define FRAME_INSERTN_COST(frame) the_only_frame.insert_n_lines_cost
	291	#define FRAME_DELETEN_COST(frame) the_only_frame.delete_n_lines_cost
	292	#define FRAME_MESSAGE_BUF(f) the_only_frame.message_buf
	293	#define FRAME_SCROLL_BOTTOM_VPOS(f) the_only_frame.scroll_bottom_vpos
	294	#define FRAME_FOCUS_FRAME(f) 0
	295
	296	#define CHECK_FRAME(x, i) { ; }
	297	#define CHECK_LIVE_FRAME(x, y) { ; }
	298
	299	/* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
	300	`for' loop which iterates over the elements of Vframe_list. The
	301	loop will set FRAME_VAR, a FRAME_PTR, to each frame in
	302	Vframe_list in succession and execute the statement. LIST_VAR
e5d77022	303	should be a Lisp_Object; it is used to iterate through the
ff11dfa1	304	Vframe_list.
e5d77022	305
ff11dfa1 JB	306	If MULTI_FRAME _is_ defined, then this loop expands to a real
	307	`for' loop which traverses Vframe_list using LIST_VAR and
	308	FRAME_VAR. */
	309	#define FOR_EACH_FRAME(list_var, frame_var) \
	310	for (frame_var = (FRAME_PTR) 1; frame_var; frame_var = (FRAME_PTR) 0)
efa4ce8b	311
ff11dfa1	312	#endif /* not MULTI_FRAME */