src/frame.h

   1 /* Define frame-object for GNU Emacs.
   2    Copyright (C) 1993, 1994, 1999, 2000, 2001, 2002, 2003, 2004,
   3                  2005, 2006, 2007, 2008 Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or
  10 (at your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 /* Don't multiply include: dispextern.h includes macterm.h which
  21    includes frame.h some emacs source includes both dispextern.h and
  22    frame.h */
  23
  24 #ifndef EMACS_FRAME_H
  25 #define EMACS_FRAME_H
  26
  27 #include "dispextern.h"
  28
  29 \f
  30 /* Miscellanea.  */
  31
  32 /* Nonzero means there is at least one garbaged frame. */
  33 extern int frame_garbaged;
  34
  35 /* Nonzero means FRAME_MESSAGE_BUF (selected_frame) is being used by
  36    print.  */
  37
  38 extern int message_buf_print;
  39
  40 /* Nonzero means window system changes focus when moving the
  41    mouse.  */
  42
  43 extern int focus_follows_mouse;
  44
  45 \f
  46 /* The structure representing a frame.  */
  47
  48 enum output_method
  49 {
  50   output_initial,
  51   output_termcap,
  52   output_x_window,
  53   output_msdos_raw,
  54   output_w32,
  55   output_mac,
  56   output_ns
  57 };
  58
  59 enum vertical_scroll_bar_type
  60 {
  61   vertical_scroll_bar_none,
  62   vertical_scroll_bar_left,
  63   vertical_scroll_bar_right
  64 };
  65
  66 enum text_cursor_kinds
  67 {
  68   DEFAULT_CURSOR = -2,
  69   NO_CURSOR = -1,
  70   FILLED_BOX_CURSOR,
  71   HOLLOW_BOX_CURSOR,
  72   BAR_CURSOR,
  73   HBAR_CURSOR
  74 };
  75
  76 enum fullscreen_type
  77 {
  78   /* Values used as a bit mask, BOTH == WIDTH | HEIGHT.  */
  79   FULLSCREEN_NONE       = 0,
  80   FULLSCREEN_WIDTH      = 1,
  81   FULLSCREEN_HEIGHT     = 2,
  82   FULLSCREEN_BOTH       = 3,
  83   FULLSCREEN_WAIT       = 4
  84 };
  85
  86
  87 #define FRAME_FOREGROUND_PIXEL(f) ((f)->foreground_pixel)
  88 #define FRAME_BACKGROUND_PIXEL(f) ((f)->background_pixel)
  89
  90 struct terminal;
  91
  92 struct font_driver_list;
  93
  94 struct frame
  95 {
  96   EMACS_UINT size;
  97   struct Lisp_Vector *next;
  98
  99   /* All Lisp_Object components must come first.
 100      That ensures they are all aligned normally.  */
 101
 102   /* Name of this frame: a Lisp string.  It is used for looking up resources,
 103      as well as for the title in some cases.  */
 104   Lisp_Object name;
 105
 106   /* The name to use for the icon, the last time
 107      it was refreshed.  nil means not explicitly specified.  */
 108   Lisp_Object icon_name;
 109
 110   /* This is the frame title specified explicitly, if any.
 111      Usually it is nil.  */
 112   Lisp_Object title;
 113
 114   /* The frame which should receive keystrokes that occur in this
 115      frame, or nil if they should go to the frame itself.  This is
 116      usually nil, but if the frame is minibufferless, we can use this
 117      to redirect keystrokes to a surrogate minibuffer frame when
 118      needed.
 119
 120      Note that a value of nil is different than having the field point
 121      to the frame itself.  Whenever the Fselect_frame function is used
 122      to shift from one frame to the other, any redirections to the
 123      original frame are shifted to the newly selected frame; if
 124      focus_frame is nil, Fselect_frame will leave it alone.  */
 125   Lisp_Object focus_frame;
 126
 127   /* This frame's root window.  Every frame has one.
 128      If the frame has only a minibuffer window, this is it.
 129      Otherwise, if the frame has a minibuffer window, this is its sibling.  */
 130   Lisp_Object root_window;
 131
 132   /* This frame's selected window.
 133      Each frame has its own window hierarchy
 134      and one of the windows in it is selected within the frame.
 135      The selected window of the selected frame is Emacs's selected window.  */
 136   Lisp_Object selected_window;
 137
 138   /* This frame's minibuffer window.
 139      Most frames have their own minibuffer windows,
 140      but only the selected frame's minibuffer window
 141      can actually appear to exist.  */
 142   Lisp_Object minibuffer_window;
 143
 144   /* Parameter alist of this frame.
 145      These are the parameters specified when creating the frame
 146      or modified with modify-frame-parameters.  */
 147   Lisp_Object param_alist;
 148
 149   /* List of scroll bars on this frame.
 150      Actually, we don't specify exactly what is stored here at all; the
 151      scroll bar implementation code can use it to store anything it likes.
 152      This field is marked by the garbage collector.  It is here
 153      instead of in the `device' structure so that the garbage
 154      collector doesn't need to look inside the window-system-dependent
 155      structure.  */
 156   Lisp_Object scroll_bars;
 157   Lisp_Object condemned_scroll_bars;
 158
 159   /* Vector describing the items to display in the menu bar.
 160      Each item has four elements in this vector.
 161      They are KEY, STRING, SUBMAP, and HPOS.
 162      (HPOS is not used in when the X toolkit is in use.)
 163      There are four additional elements of nil at the end, to terminate.  */
 164   Lisp_Object menu_bar_items;
 165
 166   /* Alist of elements (FACE-NAME . FACE-VECTOR-DATA).  */
 167   Lisp_Object face_alist;
 168
 169   /* A vector that records the entire structure of this frame's menu bar.
 170      For the format of the data, see extensive comments in xmenu.c.
 171      Only the X toolkit version uses this.  */
 172   Lisp_Object menu_bar_vector;
 173
 174   /* Predicate for selecting buffers for other-buffer.  */
 175   Lisp_Object buffer_predicate;
 176
 177   /* List of buffers viewed in this frame, for other-buffer.  */
 178   Lisp_Object buffer_list;
 179
 180   /* List of buffers that were viewed, then buried in this frame.  The
 181      most recently buried buffer is first.  For last-buffer.  */
 182   Lisp_Object buried_buffer_list;
 183
 184   /* A dummy window used to display menu bars under X when no X
 185      toolkit support is available.  */
 186   Lisp_Object menu_bar_window;
 187
 188   /* A window used to display the tool-bar of a frame.  */
 189   Lisp_Object tool_bar_window;
 190
 191   /* Desired and current tool-bar items.  */
 192   Lisp_Object tool_bar_items;
 193
 194   /* Desired and current contents displayed in tool_bar_window.  */
 195   Lisp_Object desired_tool_bar_string, current_tool_bar_string;
 196
 197   /* Beyond here, there should be no more Lisp_Object components.  */
 198
 199   /* Cache of realized faces.  */
 200   struct face_cache *face_cache;
 201
 202   /* Number of elements in `menu_bar_vector' that have meaningful data.  */
 203   EMACS_INT menu_bar_items_used;
 204
 205   /* A buffer to hold the frame's name.  We can't use the Lisp
 206      string's pointer (`name', above) because it might get relocated.  */
 207   char *namebuf;
 208
 209   /* Glyph pool and matrix. */
 210   struct glyph_pool *current_pool;
 211   struct glyph_pool *desired_pool;
 212   struct glyph_matrix *desired_matrix;
 213   struct glyph_matrix *current_matrix;
 214
 215   /* 1 means that glyphs on this frame have been initialized so it can
 216      be used for output.  */
 217   unsigned glyphs_initialized_p : 1;
 218
 219   /* frame opacity
 220      alpha[0]: alpha transparency of the active frame
 221      alpha[1]: alpha transparency of inactive frames   */
 222   double alpha[2];
 223
 224   /* Set to non-zero in change_frame_size when size of frame changed
 225      Clear the frame in clear_garbaged_frames if set.  */
 226   unsigned resized_p : 1;
 227
 228   /* Set to non-zero in when we want for force a flush_display in
 229      update_frame, usually after resizing the frame.  */
 230   unsigned force_flush_display_p : 1;
 231
 232   /* Set to non-zero if the default face for the frame has been
 233      realized.  Reset to zero whenever the default face changes.
 234      Used to see the difference between a font change and face change.  */
 235   unsigned default_face_done_p : 1;
 236
 237   /* Set to non-zero if this frame has already been hscrolled during
 238      current redisplay.  */
 239   unsigned already_hscrolled_p : 1;
 240
 241   /* Set to non-zero when current redisplay has updated frame.  */
 242   unsigned updated_p : 1;
 243
 244   /* Set to non-zero to minimize tool-bar height even when
 245      auto-resize-tool-bar is set to grow-only.  */
 246   unsigned minimize_tool_bar_window_p : 1;
 247
 248 #if defined (USE_GTK) || defined (HAVE_NS)
 249   /* Nonzero means using a tool bar that comes from the toolkit.  */
 250   int external_tool_bar;
 251 #endif
 252
 253   /* Margin at the top of the frame.  Used to display the tool-bar.  */
 254   int tool_bar_lines;
 255
 256   int n_tool_bar_rows;
 257   int n_tool_bar_items;
 258
 259   /* A buffer for decode_mode_line. */
 260   char *decode_mode_spec_buffer;
 261
 262   /* See do_line_insertion_deletion_costs for info on these arrays. */
 263   /* Cost of inserting 1 line on this frame */
 264   int *insert_line_cost;
 265   /* Cost of deleting 1 line on this frame */
 266   int *delete_line_cost;
 267   /* Cost of inserting n lines on this frame */
 268   int *insert_n_lines_cost;
 269   /* Cost of deleting n lines on this frame */
 270   int *delete_n_lines_cost;
 271
 272   /* Size of this frame, excluding fringes, scroll bars etc.,
 273      in units of canonical characters.  */
 274   EMACS_INT text_lines, text_cols;
 275
 276   /* Total size of this frame (i.e. its native window), in units of
 277      canonical characters.  */
 278   EMACS_INT total_lines, total_cols;
 279
 280   /* New text height and width for pending size change.
 281      0 if no change pending.  */
 282   int new_text_lines, new_text_cols;
 283
 284   /* Pixel position of the frame window (x and y offsets in root window).  */
 285   int left_pos, top_pos;
 286
 287   /* Size of the frame window in pixels.  */
 288   int pixel_height, pixel_width;
 289
 290   /* Dots per inch of the screen the frame is on.  */
 291   double resx, resy;
 292
 293   /* These many pixels are the difference between the outer window (i.e. the
 294      left and top of the window manager decoration) and FRAME_X_WINDOW. */
 295   int x_pixels_diff, y_pixels_diff;
 296
 297   /* This is the gravity value for the specified window position.  */
 298   int win_gravity;
 299
 300   /* The geometry flags for this window.  */
 301   int size_hint_flags;
 302
 303   /* Border width of the frame window as known by the (X) window system.  */
 304   int border_width;
 305
 306   /* Width of the internal border.  This is a line of background color
 307      just inside the window's border.  When the frame is selected,
 308      a highlighting is displayed inside the internal border.  */
 309   int internal_border_width;
 310
 311   /* Canonical X unit.  Width of default font, in pixels.  */
 312   int column_width;
 313
 314   /* Widht of space glyph of default font, in pixels.  */
 315   int space_width;
 316
 317   /* Canonical Y unit.  Height of a line, in pixels.  */
 318   int line_height;
 319
 320   /* The output method says how the contents of this frame are
 321      displayed.  It could be using termcap, or using an X window.
 322      This must be the same as the terminal->type. */
 323   enum output_method output_method;
 324
 325   /* The terminal device that this frame uses.  If this is NULL, then
 326      the frame has been deleted. */
 327   struct terminal *terminal;
 328
 329   /* Device-dependent, frame-local auxiliary data used for displaying
 330      the contents.  When the frame is deleted, this data is deleted as
 331      well. */
 332   union output_data
 333   {
 334     struct tty_output *tty;     /* termchar.h */
 335     struct x_output *x;         /* xterm.h */
 336     struct w32_output *w32;     /* w32term.h */
 337     struct ns_output *ns;       /* nsterm.h */
 338     EMACS_INT nothing;
 339   }
 340   output_data;
 341
 342   /* List of font-drivers available on the frame. */
 343   struct font_driver_list *font_driver_list;
 344   /* List of data specific to font-driver and frame, but common to
 345      faces.  */
 346   struct font_data_list *font_data_list;
 347
 348   /* Total width of fringes reserved for drawing truncation bitmaps,
 349      continuation bitmaps and alike.  The width is in canonical char
 350      units of the frame.  This must currently be the case because window
 351      sizes aren't pixel values.  If it weren't the case, we wouldn't be
 352      able to split windows horizontally nicely.  */
 353   int fringe_cols;
 354
 355   /* The extra width (in pixels) currently allotted for fringes.  */
 356   int left_fringe_width, right_fringe_width;
 357
 358   /* See FULLSCREEN_ enum below */
 359   enum fullscreen_type want_fullscreen;
 360
 361   /* Number of lines of menu bar.  */
 362   int menu_bar_lines;
 363
 364 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \
 365     || defined (HAVE_NS) || defined (USE_GTK)
 366   /* Nonzero means using a menu bar that comes from the X toolkit.  */
 367   unsigned int external_menu_bar : 1;
 368 #endif
 369
 370   /* Nonzero if last attempt at redisplay on this frame was preempted.  */
 371   unsigned char display_preempted : 1;
 372
 373   /* visible is nonzero if the frame is currently displayed; we check
 374      it to see if we should bother updating the frame's contents.
 375      DON'T SET IT DIRECTLY; instead, use FRAME_SET_VISIBLE.
 376
 377      Note that, since invisible frames aren't updated, whenever a
 378      frame becomes visible again, it must be marked as garbaged.  The
 379      FRAME_SAMPLE_VISIBILITY macro takes care of this.
 380
 381      On ttys and on Windows NT/9X, to avoid wasting effort updating
 382      visible frames that are actually completely obscured by other
 383      windows on the display, we bend the meaning of visible slightly:
 384      if greater than 1, then the frame is obscured - we still consider
 385      it to be "visible" as seen from lisp, but we don't bother
 386      updating it.  We must take care to garbage the frame when it
 387      ceaces to be obscured though.
 388
 389      iconified is nonzero if the frame is currently iconified.
 390
 391      Asynchronous input handlers should NOT change these directly;
 392      instead, they should change async_visible or async_iconified, and
 393      let the FRAME_SAMPLE_VISIBILITY macro set visible and iconified
 394      at the next redisplay.
 395
 396      These should probably be considered read-only by everyone except
 397      FRAME_SAMPLE_VISIBILITY.
 398
 399      These two are mutually exclusive.  They might both be zero, if the
 400      frame has been made invisible without an icon.  */
 401   unsigned char visible : 2;
 402   unsigned char iconified : 1;
 403
 404   /* Let's not use bitfields for volatile variables.  */
 405
 406   /* Asynchronous input handlers change these, and
 407      FRAME_SAMPLE_VISIBILITY copies them into visible and iconified.
 408      See FRAME_SAMPLE_VISIBILITY, below.  */
 409   volatile char async_visible, async_iconified;
 410
 411   /* Nonzero if this frame should be redrawn.  */
 412   volatile char garbaged;
 413
 414   /* True if frame actually has a minibuffer window on it.
 415      0 if using a minibuffer window that isn't on this frame.  */
 416   unsigned char has_minibuffer : 1;
 417
 418   /* 0 means, if this frame has just one window,
 419      show no modeline for that window.  */
 420   unsigned char wants_modeline : 1;
 421
 422   /* Non-zero if the hardware device this frame is displaying on can
 423      support scroll bars.  */
 424   char can_have_scroll_bars;
 425
 426   /* Non-0 means raise this frame to the top of the heap when selected.  */
 427   unsigned char auto_raise : 1;
 428
 429   /* Non-0 means lower this frame to the bottom of the stack when left.  */
 430   unsigned char auto_lower : 1;
 431
 432   /* True if frame's root window can't be split.  */
 433   unsigned char no_split : 1;
 434
 435   /* If this is set, then Emacs won't change the frame name to indicate
 436      the current buffer, etcetera.  If the user explicitly sets the frame
 437      name, this gets set.  If the user sets the name to Qnil, this is
 438      cleared.  */
 439   unsigned char explicit_name : 1;
 440
 441   /* Nonzero if size of some window on this frame has changed.  */
 442   unsigned char window_sizes_changed : 1;
 443
 444   /* Nonzero if the mouse has moved on this display device
 445      since the last time we checked.  */
 446   unsigned char mouse_moved :1;
 447
 448   /* If can_have_scroll_bars is non-zero, this is non-zero if we should
 449      actually display them on this frame.  */
 450   enum vertical_scroll_bar_type vertical_scroll_bar_type;
 451
 452   /* What kind of text cursor should we draw in the future?
 453      This should always be filled_box_cursor or bar_cursor.  */
 454   enum text_cursor_kinds desired_cursor;
 455
 456   /* Width of bar cursor (if we are using that).  */
 457   int cursor_width;
 458
 459   /* What kind of text cursor should we draw when the cursor blinks off?
 460      This can be filled_box_cursor or bar_cursor or no_cursor.  */
 461   enum text_cursor_kinds blink_off_cursor;
 462
 463   /* Width of bar cursor (if we are using that) for blink-off state.  */
 464   int blink_off_cursor_width;
 465
 466   /* Storage for messages to this frame. */
 467   char *message_buf;
 468
 469   /* Nonnegative if current redisplay should not do scroll computation
 470      for lines beyond a certain vpos.  This is the vpos.  */
 471   int scroll_bottom_vpos;
 472
 473   /* Configured width of the scroll bar, in pixels and in characters.
 474      config_scroll_bar_cols tracks config_scroll_bar_width if the
 475      latter is positive; a zero value in config_scroll_bar_width means
 476      to compute the actual width on the fly, using config_scroll_bar_cols
 477      and the current font width.  */
 478   int config_scroll_bar_width;
 479   int config_scroll_bar_cols;
 480
 481   /* The size of the extra width currently allotted for vertical
 482      scroll bars in this frame, in pixels.  */
 483   int scroll_bar_actual_width;
 484
 485   /* The baud rate that was used to calculate costs for this frame.  */
 486   int cost_calculation_baud_rate;
 487
 488   /* Exponent for gamma correction of colors.  1/(VIEWING_GAMMA *
 489      SCREEN_GAMMA) where viewing_gamma is 0.4545 and SCREEN_GAMMA is a
 490      frame parameter.  0 means don't do gamma correction.  */
 491   double gamma;
 492
 493   /* Additional space to put between text lines on this frame.  */
 494   int extra_line_spacing;
 495
 496   /* All display backends seem to need these two pixel values. */
 497   unsigned long background_pixel;
 498   unsigned long foreground_pixel;
 499 };
 500
 501 #define FRAME_KBOARD(f) ((f)->terminal->kboard)
 502
 503 /* Return a pointer to the image cache of frame F.  */
 504 #define FRAME_IMAGE_CACHE(F) ((F)->terminal->image_cache)
 505
 506 typedef struct frame *FRAME_PTR;
 507
 508 #define XFRAME(p) (eassert (FRAMEP(p)),(struct frame *) XPNTR (p))
 509 #define XSETFRAME(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_FRAME))
 510
 511 /* Given a window, return its frame as a Lisp_Object.  */
 512 #define WINDOW_FRAME(w) (w)->frame
 513
 514 /* Test a frame for particular kinds of display methods.  */
 515 #define FRAME_INITIAL_P(f) ((f)->output_method == output_initial)
 516 #define FRAME_TERMCAP_P(f) ((f)->output_method == output_termcap)
 517 #define FRAME_X_P(f) ((f)->output_method == output_x_window)
 518 #define FRAME_W32_P(f) ((f)->output_method == output_w32)
 519 #define FRAME_MSDOS_P(f) ((f)->output_method == output_msdos_raw)
 520 #define FRAME_MAC_P(f) ((f)->output_method == output_mac)
 521 #define FRAME_NS_P(f) ((f)->output_method == output_ns)
 522
 523 /* FRAME_WINDOW_P tests whether the frame is a window, and is
 524    defined to be the predicate for the window system being used.  */
 525
 526 #ifdef HAVE_X_WINDOWS
 527 #define FRAME_WINDOW_P(f) FRAME_X_P (f)
 528 #endif
 529 #ifdef HAVE_NTGUI
 530 #define FRAME_WINDOW_P(f) FRAME_W32_P (f)
 531 #endif
 532 #ifdef HAVE_NS
 533 #define FRAME_WINDOW_P(f) FRAME_NS_P(f)
 534 #endif
 535 #ifndef FRAME_WINDOW_P
 536 #define FRAME_WINDOW_P(f) (0)
 537 #endif
 538
 539 /* Nonzero if frame F is still alive (not deleted).  */
 540 #define FRAME_LIVE_P(f) ((f)->terminal != 0)
 541
 542 /* Nonzero if frame F is a minibuffer-only frame.  */
 543 #define FRAME_MINIBUF_ONLY_P(f) \
 544   EQ (FRAME_ROOT_WINDOW (f), FRAME_MINIBUF_WINDOW (f))
 545
 546 /* Nonzero if frame F contains a minibuffer window.
 547    (If this is 0, F must use some other minibuffer window.)  */
 548 #define FRAME_HAS_MINIBUF_P(f) ((f)->has_minibuffer)
 549
 550 /* Pixel height of frame F, including non-toolkit menu bar and
 551    non-toolkit tool bar lines.  */
 552 #define FRAME_PIXEL_HEIGHT(f) ((f)->pixel_height)
 553
 554 /* Pixel width of frame F.  */
 555 #define FRAME_PIXEL_WIDTH(f) ((f)->pixel_width)
 556
 557 /* Height of frame F, measured in canonical lines, including
 558    non-toolkit menu bar and non-toolkit tool bar lines.  */
 559 #define FRAME_LINES(f) (f)->text_lines
 560
 561 /* Width of frame F, measured in canonical character columns,
 562    not including scroll bars if any.  */
 563 #define FRAME_COLS(f) (f)->text_cols
 564
 565 /* Number of lines of frame F used for menu bar.
 566    This is relevant on terminal frames and on
 567    X Windows when not using the X toolkit.
 568    These lines are counted in FRAME_LINES.  */
 569 #define FRAME_MENU_BAR_LINES(f) (f)->menu_bar_lines
 570
 571 /* Nonzero if this frame should display a tool bar
 572    in a way that does not use any text lines.  */
 573 #if defined (USE_GTK) || defined (HAVE_NS)
 574 #define FRAME_EXTERNAL_TOOL_BAR(f) (f)->external_tool_bar
 575 #else
 576 #define FRAME_EXTERNAL_TOOL_BAR(f) 0
 577 #endif
 578
 579 /* Number of lines of frame F used for the tool-bar.  */
 580
 581 #define FRAME_TOOL_BAR_LINES(f) (f)->tool_bar_lines
 582
 583
 584 /* Lines above the top-most window in frame F.  */
 585
 586 #define FRAME_TOP_MARGIN(F) \
 587      (FRAME_MENU_BAR_LINES (F) + FRAME_TOOL_BAR_LINES (F))
 588
 589 /* Nonzero if this frame should display a menu bar
 590    in a way that does not use any text lines.  */
 591 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \
 592      || defined (HAVE_NS) || defined (USE_GTK)
 593 #define FRAME_EXTERNAL_MENU_BAR(f) (f)->external_menu_bar
 594 #else
 595 #define FRAME_EXTERNAL_MENU_BAR(f) 0
 596 #endif
 597 #define FRAME_VISIBLE_P(f) ((f)->visible != 0)
 598
 599 /* Nonzero if frame F is currently visible but hidden.  */
 600 #define FRAME_OBSCURED_P(f) ((f)->visible > 1)
 601
 602 /* Nonzero if frame F is currently iconified.  */
 603 #define FRAME_ICONIFIED_P(f) (f)->iconified
 604
 605 #define FRAME_SET_VISIBLE(f,p) \
 606   ((f)->async_visible = (p), FRAME_SAMPLE_VISIBILITY (f))
 607 #define SET_FRAME_GARBAGED(f) (frame_garbaged = 1, f->garbaged = 1)
 608 #define FRAME_GARBAGED_P(f) (f)->garbaged
 609
 610 /* Nonzero means do not allow splitting this frame's window.  */
 611 #define FRAME_NO_SPLIT_P(f) (f)->no_split
 612
 613 /* Not really implemented.  */
 614 #define FRAME_WANTS_MODELINE_P(f) (f)->wants_modeline
 615
 616 /* Nonzero if a size change has been requested for frame F
 617    but not yet really put into effect.  This can be true temporarily
 618    when an X event comes in at a bad time.  */
 619 #define FRAME_WINDOW_SIZES_CHANGED(f) (f)->window_sizes_changed
 620
 621 /* The minibuffer window of frame F, if it has one; otherwise nil.  */
 622 #define FRAME_MINIBUF_WINDOW(f) (f)->minibuffer_window
 623
 624 /* The root window of the window tree of frame F.  */
 625 #define FRAME_ROOT_WINDOW(f) (f)->root_window
 626
 627 /* The currently selected window of the window tree of frame F.  */
 628 #define FRAME_SELECTED_WINDOW(f) (f)->selected_window
 629
 630 #define FRAME_INSERT_COST(f) (f)->insert_line_cost
 631 #define FRAME_DELETE_COST(f) (f)->delete_line_cost
 632 #define FRAME_INSERTN_COST(f) (f)->insert_n_lines_cost
 633 #define FRAME_DELETEN_COST(f) (f)->delete_n_lines_cost
 634 #define FRAME_MESSAGE_BUF(f) (f)->message_buf
 635 #define FRAME_SCROLL_BOTTOM_VPOS(f) (f)->scroll_bottom_vpos
 636 #define FRAME_FOCUS_FRAME(f) (f)->focus_frame
 637
 638 /* Nonzero if frame F supports scroll bars.
 639    If this is zero, then it is impossible to enable scroll bars
 640    on frame F.  */
 641 #define FRAME_CAN_HAVE_SCROLL_BARS(f) ((f)->can_have_scroll_bars)
 642
 643 /* This frame slot says whether scroll bars are currently enabled for frame F,
 644    and which side they are on.  */
 645 #define FRAME_VERTICAL_SCROLL_BAR_TYPE(f) ((f)->vertical_scroll_bar_type)
 646 #define FRAME_HAS_VERTICAL_SCROLL_BARS(f) \
 647      ((f)->vertical_scroll_bar_type != vertical_scroll_bar_none)
 648 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT(f) \
 649      ((f)->vertical_scroll_bar_type == vertical_scroll_bar_left)
 650 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT(f) \
 651      ((f)->vertical_scroll_bar_type == vertical_scroll_bar_right)
 652
 653 /* Width that a scroll bar in frame F should have, if there is one.
 654    Measured in pixels.
 655    If scroll bars are turned off, this is still nonzero.  */
 656 #define FRAME_CONFIG_SCROLL_BAR_WIDTH(f) ((f)->config_scroll_bar_width)
 657
 658 /* Width that a scroll bar in frame F should have, if there is one.
 659    Measured in columns (characters).
 660    If scroll bars are turned off, this is still nonzero.  */
 661 #define FRAME_CONFIG_SCROLL_BAR_COLS(f) ((f)->config_scroll_bar_cols)
 662
 663 /* Width of a scroll bar in frame F, measured in columns (characters),
 664    but only if scroll bars are on the left.  If scroll bars are on
 665    the right in this frame, or there are no scroll bars, value is 0.  */
 666
 667 #define FRAME_LEFT_SCROLL_BAR_COLS(f)                   \
 668      (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)        \
 669       ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                \
 670       : 0)
 671
 672 /* Width of a left scroll bar in frame F, measured in pixels */
 673
 674 #define FRAME_LEFT_SCROLL_BAR_AREA_WIDTH(f)                                     \
 675   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)                           \
 676    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 677    : 0)
 678
 679 /* Width of a scroll bar in frame F, measured in columns (characters),
 680    but only if scroll bars are on the right.  If scroll bars are on
 681    the left in this frame, or there are no scroll bars, value is 0.  */
 682
 683 #define FRAME_RIGHT_SCROLL_BAR_COLS(f)                  \
 684      (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)       \
 685       ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                \
 686       : 0)
 687
 688 /* Width of a right scroll bar area in frame F, measured in pixels */
 689
 690 #define FRAME_RIGHT_SCROLL_BAR_AREA_WIDTH(f)                                    \
 691   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)                          \
 692    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 693    : 0)
 694
 695 /* Actual width of a scroll bar in frame F, measured in columns.  */
 696
 697 #define FRAME_SCROLL_BAR_COLS(f)                        \
 698      (FRAME_HAS_VERTICAL_SCROLL_BARS (f)                \
 699       ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                \
 700       : 0)
 701
 702 /* Actual width of a scroll bar area in frame F, measured in pixels.  */
 703
 704 #define FRAME_SCROLL_BAR_AREA_WIDTH(f)                                  \
 705   (FRAME_HAS_VERTICAL_SCROLL_BARS (f)                                   \
 706    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 707    : 0)
 708
 709 /* Total width of frame F, in columns (characters),
 710    including the width used by scroll bars if any.  */
 711
 712 #define FRAME_TOTAL_COLS(f) ((f)->total_cols)
 713
 714 /* Set the width of frame F to VAL.
 715    VAL is the width of a full-frame window,
 716    not including scroll bars and fringes.  */
 717
 718 #define SET_FRAME_COLS(f, val)                                          \
 719      (FRAME_COLS (f) = (val),                                           \
 720       (f)->total_cols = FRAME_TOTAL_COLS_ARG (f, FRAME_COLS (f)))
 721
 722 /* Given a value WIDTH for frame F's nominal width,
 723    return the value that FRAME_TOTAL_COLS should have.  */
 724
 725 #define FRAME_TOTAL_COLS_ARG(f, width)          \
 726      ((width)                                   \
 727       + FRAME_SCROLL_BAR_COLS (f)               \
 728       + FRAME_FRINGE_COLS (f))
 729
 730 /* Maximum + 1 legitimate value for FRAME_CURSOR_X.  */
 731
 732 #define FRAME_CURSOR_X_LIMIT(f) \
 733      (FRAME_COLS (f) + FRAME_LEFT_SCROLL_BAR_COLS (f))
 734
 735 /* Nonzero if frame F has scroll bars.  */
 736
 737 #define FRAME_SCROLL_BARS(f) ((f)->scroll_bars)
 738
 739 #define FRAME_CONDEMNED_SCROLL_BARS(f) ((f)->condemned_scroll_bars)
 740 #define FRAME_MENU_BAR_ITEMS(f) ((f)->menu_bar_items)
 741 #define FRAME_COST_BAUD_RATE(f) ((f)->cost_calculation_baud_rate)
 742
 743 #define FRAME_DESIRED_CURSOR(f) ((f)->desired_cursor)
 744 #define FRAME_BLINK_OFF_CURSOR(f) ((f)->blink_off_cursor)
 745 #define FRAME_CURSOR_WIDTH(f) ((f)->cursor_width)
 746 #define FRAME_BLINK_OFF_CURSOR_WIDTH(f) ((f)->blink_off_cursor_width)
 747
 748 /* Return a pointer to the face cache of frame F.  */
 749
 750 #define FRAME_FACE_CACHE(F)     (F)->face_cache
 751
 752 /* Return the size of message_buf of the frame F.  We multiply the
 753    width of the frame by 4 because multi-byte form may require at most
 754    4-byte for a character.  */
 755
 756 #define FRAME_MESSAGE_BUF_SIZE(f) (((int) FRAME_COLS (f)) * 4)
 757
 758 /* Emacs's redisplay code could become confused if a frame's
 759    visibility changes at arbitrary times.  For example, if a frame is
 760    visible while the desired glyphs are being built, but becomes
 761    invisible before they are updated, then some rows of the
 762    desired_glyphs will be left marked as enabled after redisplay is
 763    complete, which should never happen.  The next time the frame
 764    becomes visible, redisplay will probably barf.
 765
 766    Currently, there are no similar situations involving iconified, but
 767    the principle is the same.
 768
 769    So instead of having asynchronous input handlers directly set and
 770    clear the frame's visibility and iconification flags, they just set
 771    the async_visible and async_iconified flags; the redisplay code
 772    calls the FRAME_SAMPLE_VISIBILITY macro before doing any redisplay,
 773    which sets visible and iconified from their asynchronous
 774    counterparts.
 775
 776    Synchronous code must use the FRAME_SET_VISIBLE macro.
 777
 778    Also, if a frame used to be invisible, but has just become visible,
 779    it must be marked as garbaged, since redisplay hasn't been keeping
 780    up its contents.
 781
 782    Note that a tty frame is visible if and only if it is the topmost
 783    frame. */
 784
 785 #define FRAME_SAMPLE_VISIBILITY(f) \
 786   (((f)->async_visible && (f)->visible != (f)->async_visible) ? \
 787    SET_FRAME_GARBAGED (f) : 0, \
 788    (f)->visible = (f)->async_visible, \
 789    (f)->iconified = (f)->async_iconified)
 790
 791 #define CHECK_FRAME(x) \
 792   CHECK_TYPE (FRAMEP (x), Qframep, x)
 793
 794 #define CHECK_LIVE_FRAME(x) \
 795   CHECK_TYPE (FRAMEP (x) && FRAME_LIVE_P (XFRAME (x)), Qframe_live_p, x)
 796
 797 /* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
 798    `for' loop which iterates over the elements of Vframe_list.  The
 799    loop will set FRAME_VAR, a Lisp_Object, to each frame in
 800    Vframe_list in succession and execute the statement.  LIST_VAR
 801    should be a Lisp_Object too; it is used to iterate through the
 802    Vframe_list.
 803
 804    This macro is a holdover from a time when multiple frames weren't always
 805    supported.  An alternate definition of the macro would expand to
 806    something which executes the statement once.  */
 807
 808 #define FOR_EACH_FRAME(list_var, frame_var)                     \
 809   for ((list_var) = Vframe_list;                                \
 810        (CONSP (list_var)                                        \
 811         && (frame_var = XCAR (list_var), 1));           \
 812        list_var = XCDR (list_var))
 813
 814
 815 extern Lisp_Object Qframep, Qframe_live_p;
 816 extern Lisp_Object Qtty, Qtty_type;
 817 extern Lisp_Object Qterminal, Qterminal_live_p;
 818 extern Lisp_Object Qnoelisp;
 819
 820 extern struct frame *last_nonminibuf_frame;
 821
 822 extern struct frame *make_initial_frame P_ ((void));
 823 extern struct frame *make_terminal_frame P_ ((struct terminal *));
 824 extern struct frame *make_frame P_ ((int));
 825 #ifdef HAVE_WINDOW_SYSTEM
 826 extern struct frame *make_minibuffer_frame P_ ((void));
 827 extern struct frame *make_frame_without_minibuffer P_ ((Lisp_Object,
 828                                                         struct kboard *,
 829                                                         Lisp_Object));
 830 #endif /* HAVE_WINDOW_SYSTEM */
 831 extern int other_visible_frames P_ ((struct frame *));
 832
 833 extern Lisp_Object Vframe_list;
 834 extern Lisp_Object Vdefault_frame_alist;
 835
 836 extern Lisp_Object Vterminal_frame;
 837
 838 extern Lisp_Object Vmouse_highlight;
 839 \f
 840 /* The currently selected frame.  */
 841
 842 extern Lisp_Object selected_frame;
 843
 844 /* Value is a pointer to the selected frame.  If the selected frame
 845    isn't live, abort.  */
 846
 847 #define SELECTED_FRAME()                                \
 848      ((FRAMEP (selected_frame)                          \
 849        && FRAME_LIVE_P (XFRAME (selected_frame)))       \
 850       ? XFRAME (selected_frame)                         \
 851       : (abort (), (struct frame *) 0))
 852
 853 \f
 854 /***********************************************************************
 855                         Display-related Macros
 856  ***********************************************************************/
 857
 858 /* Canonical y-unit on frame F.
 859    This value currently equals the line height of the frame (which is
 860    the height of the default font of F).  */
 861
 862 #define FRAME_LINE_HEIGHT(F) ((F)->line_height)
 863
 864 /* Canonical x-unit on frame F.
 865    This value currently equals the average width of the default font of F.  */
 866
 867 #define FRAME_COLUMN_WIDTH(F) ((F)->column_width)
 868
 869 /* Space glyph width of the default font of frame F.  */
 870
 871 #define FRAME_SPACE_WIDTH(F) ((F)->space_width)
 872
 873
 874 /* Pixel width of areas used to display truncation marks, continuation
 875    marks, overlay arrows.  This is 0 for terminal frames.  */
 876
 877 #ifdef HAVE_WINDOW_SYSTEM
 878
 879 /* Total width of fringes reserved for drawing truncation bitmaps,
 880    continuation bitmaps and alike.  The width is in canonical char
 881    units of the frame.  This must currently be the case because window
 882    sizes aren't pixel values.  If it weren't the case, we wouldn't be
 883    able to split windows horizontally nicely.  */
 884
 885 #define FRAME_FRINGE_COLS(F) ((F)->fringe_cols)
 886
 887 /* Pixel-width of the left and right fringe.  */
 888
 889 #define FRAME_LEFT_FRINGE_WIDTH(F) ((F)->left_fringe_width)
 890 #define FRAME_RIGHT_FRINGE_WIDTH(F) ((F)->right_fringe_width)
 891
 892 /* Total width of fringes in pixels.  */
 893
 894 #define FRAME_TOTAL_FRINGE_WIDTH(F) \
 895   (FRAME_LEFT_FRINGE_WIDTH (F) + FRAME_RIGHT_FRINGE_WIDTH (F))
 896
 897
 898 /* Pixel-width of internal border lines */
 899
 900 #define FRAME_INTERNAL_BORDER_WIDTH(F) ((F)->internal_border_width)
 901
 902 #else /* not HAVE_WINDOW_SYSTEM */
 903
 904 #define FRAME_FRINGE_COLS(F)    0
 905 #define FRAME_TOTAL_FRINGE_WIDTH(F)     0
 906 #define FRAME_LEFT_FRINGE_WIDTH(F)  0
 907 #define FRAME_RIGHT_FRINGE_WIDTH(F) 0
 908 #define FRAME_INTERNAL_BORDER_WIDTH(F) 0
 909
 910 #endif /* not HAVE_WINDOW_SYSTEM */
 911
 912
 913
 914 \f
 915 /***********************************************************************
 916             Conversion between canonical units and pixels
 917  ***********************************************************************/
 918
 919 /* Canonical x-values are fractions of FRAME_COLUMN_WIDTH, canonical
 920    y-unit are fractions of FRAME_LINE_HEIGHT of a frame.  Both are
 921    represented as Lisp numbers, i.e. integers or floats.  */
 922
 923 /* Convert canonical value X to pixels.  F is the frame whose
 924    canonical char width is to be used.  X must be a Lisp integer or
 925    float.  Value is a C integer.  */
 926
 927 #define FRAME_PIXEL_X_FROM_CANON_X(F, X)                \
 928      (INTEGERP (X)                                      \
 929       ? XINT (X) * FRAME_COLUMN_WIDTH (F)               \
 930       : (int) (XFLOAT_DATA (X) * FRAME_COLUMN_WIDTH (F)))
 931
 932 /* Convert canonical value Y to pixels.  F is the frame whose
 933    canonical character height is to be used.  X must be a Lisp integer
 934    or float.  Value is a C integer.  */
 935
 936 #define FRAME_PIXEL_Y_FROM_CANON_Y(F, Y)                \
 937      (INTEGERP (Y)                                      \
 938       ? XINT (Y) * FRAME_LINE_HEIGHT (F)                \
 939       : (int) (XFLOAT_DATA (Y) * FRAME_LINE_HEIGHT (F)))
 940
 941 /* Convert pixel-value X to canonical units.  F is the frame whose
 942    canonical character width is to be used.  X is a C integer.  Result
 943    is a Lisp float if X is not a multiple of the canon width,
 944    otherwise it's a Lisp integer.  */
 945
 946 #define FRAME_CANON_X_FROM_PIXEL_X(F, X)                        \
 947      ((X) % FRAME_COLUMN_WIDTH (F) != 0                         \
 948       ? make_float ((double) (X) / FRAME_COLUMN_WIDTH (F))      \
 949       : make_number ((X) / FRAME_COLUMN_WIDTH (F)))
 950
 951 /* Convert pixel-value Y to canonical units.  F is the frame whose
 952    canonical character height is to be used.  Y is a C integer.
 953    Result is a Lisp float if Y is not a multiple of the canon width,
 954    otherwise it's a Lisp integer.  */
 955
 956 #define FRAME_CANON_Y_FROM_PIXEL_Y(F, Y)                        \
 957      ((Y) % FRAME_LINE_HEIGHT (F)                               \
 958       ? make_float ((double) (Y) / FRAME_LINE_HEIGHT (F))       \
 959       : make_number ((Y) / FRAME_LINE_HEIGHT (F)))
 960
 961
 962 \f
 963 /* Manipulating pixel sizes and character sizes.
 964    Knowledge of which factors affect the overall size of the window should
 965    be hidden in these macros, if that's possible.
 966
 967    Return the upper/left pixel position of the character cell on frame F
 968    at ROW/COL.  */
 969
 970 #define FRAME_LINE_TO_PIXEL_Y(f, row) \
 971   (FRAME_INTERNAL_BORDER_WIDTH (f)  \
 972    + (row) * FRAME_LINE_HEIGHT (f))
 973
 974 #define FRAME_COL_TO_PIXEL_X(f, col) \
 975   (FRAME_INTERNAL_BORDER_WIDTH (f) \
 976    + (col) * FRAME_COLUMN_WIDTH (f))
 977
 978 /* Return the pixel width/height of frame F if it has
 979    COLS columns/LINES rows.  */
 980
 981 #define FRAME_TEXT_COLS_TO_PIXEL_WIDTH(f, cols) \
 982   (FRAME_COL_TO_PIXEL_X (f, cols) \
 983    + (f)->scroll_bar_actual_width \
 984    + FRAME_TOTAL_FRINGE_WIDTH (f)      \
 985    + FRAME_INTERNAL_BORDER_WIDTH (f))
 986
 987 #define FRAME_TEXT_LINES_TO_PIXEL_HEIGHT(f, lines) \
 988   (FRAME_LINE_TO_PIXEL_Y (f, lines) \
 989    + FRAME_INTERNAL_BORDER_WIDTH (f))
 990
 991
 992 /* Return the row/column (zero-based) of the character cell containing
 993    the pixel on FRAME at Y/X.  */
 994
 995 #define FRAME_PIXEL_Y_TO_LINE(f, y) \
 996   (((y) - FRAME_INTERNAL_BORDER_WIDTH (f))      \
 997    / FRAME_LINE_HEIGHT (f))
 998
 999 #define FRAME_PIXEL_X_TO_COL(f, x) \
1000   (((x) - FRAME_INTERNAL_BORDER_WIDTH (f))      \
1001    / FRAME_COLUMN_WIDTH (f))
1002
1003 /* How many columns/rows of text can we fit in WIDTH/HEIGHT pixels on
1004    frame F?  */
1005
1006 #define FRAME_PIXEL_WIDTH_TO_TEXT_COLS(f, width)                \
1007   (FRAME_PIXEL_X_TO_COL (f, ((width)                            \
1008                              - FRAME_INTERNAL_BORDER_WIDTH (f)  \
1009                              - FRAME_TOTAL_FRINGE_WIDTH (f)     \
1010                              - (f)->scroll_bar_actual_width)))
1011
1012 #define FRAME_PIXEL_HEIGHT_TO_TEXT_LINES(f, height) \
1013   (FRAME_PIXEL_Y_TO_LINE (f, ((height) \
1014                               - FRAME_INTERNAL_BORDER_WIDTH (f))))
1015
1016
1017 /***********************************************************************
1018                                 Frame Parameters
1019  ***********************************************************************/
1020
1021 extern Lisp_Object Qauto_raise, Qauto_lower;
1022 extern Lisp_Object Qborder_color, Qborder_width;
1023 extern Lisp_Object Qbuffer_predicate, Qbuffer_list, Qburied_buffer_list;
1024 extern Lisp_Object Qcursor_color, Qcursor_type;
1025 extern Lisp_Object Qfont;
1026 extern Lisp_Object Qbackground_color, Qforeground_color;
1027 extern Lisp_Object Qicon, Qicon_name, Qicon_type, Qicon_left, Qicon_top;
1028 extern Lisp_Object Qinternal_border_width;
1029 extern Lisp_Object Qmenu_bar_lines, Qtool_bar_lines;
1030 extern Lisp_Object Qmouse_color;
1031 extern Lisp_Object Qname, Qtitle;
1032 extern Lisp_Object Qparent_id;
1033 extern Lisp_Object Qunsplittable, Qvisibility;
1034 extern Lisp_Object Qscroll_bar_width, Qvertical_scroll_bars;
1035 extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background;
1036 extern Lisp_Object Qscreen_gamma;
1037 extern Lisp_Object Qline_spacing;
1038 extern Lisp_Object Qwait_for_wm;
1039 extern Lisp_Object Qfullscreen;
1040 extern Lisp_Object Qfont_backend;
1041 extern Lisp_Object Qalpha;
1042
1043 extern Lisp_Object Qleft_fringe, Qright_fringe;
1044 extern Lisp_Object Qheight, Qwidth;
1045 extern Lisp_Object Qminibuffer, Qmodeline;
1046 extern Lisp_Object Qonly;
1047 extern Lisp_Object Qx, Qw32, Qmac, Qpc, Qns;
1048 extern Lisp_Object Qvisible;
1049 extern Lisp_Object Qdisplay_type;
1050 extern Lisp_Object Qbackground_mode;
1051
1052 extern Lisp_Object Qx_resource_name;
1053
1054 extern Lisp_Object Qleft, Qright, Qtop, Qbox;
1055 extern Lisp_Object Qdisplay;
1056
1057 #ifdef HAVE_WINDOW_SYSTEM
1058
1059 /* The class of this X application.  */
1060 #define EMACS_CLASS "Emacs"
1061
1062 /* These are in xterm.c, w32term.c, etc.  */
1063
1064 extern void x_set_scroll_bar_default_width P_ ((struct frame *));
1065 extern void x_set_offset P_ ((struct frame *, int, int, int));
1066 extern void x_wm_set_icon_position P_ ((struct frame *, int, int));
1067
1068 extern Lisp_Object x_new_font P_ ((struct frame *, Lisp_Object, int));
1069
1070 /* These are in frame.c  */
1071
1072 extern Lisp_Object Vx_resource_name;
1073 extern Lisp_Object Vx_resource_class;
1074
1075
1076 extern Lisp_Object Qface_set_after_frame_default;
1077
1078 extern void x_fullscreen_adjust P_ ((struct frame *f, int *, int *,
1079                                      int *, int *));
1080
1081 extern void x_set_frame_parameters P_ ((struct frame *, Lisp_Object));
1082 extern void x_report_frame_params P_ ((struct frame *, Lisp_Object *));
1083
1084 extern void x_set_fullscreen P_ ((struct frame *, Lisp_Object, Lisp_Object));
1085 extern void x_set_line_spacing P_ ((struct frame *, Lisp_Object, Lisp_Object));
1086 extern void x_set_screen_gamma P_ ((struct frame *, Lisp_Object, Lisp_Object));
1087 extern void x_set_font P_ ((struct frame *, Lisp_Object, Lisp_Object));
1088 extern void x_set_font_backend P_ ((struct frame *, Lisp_Object, Lisp_Object));
1089 extern void x_set_fringe_width P_ ((struct frame *, Lisp_Object, Lisp_Object));
1090 extern void x_set_border_width P_ ((struct frame *, Lisp_Object, Lisp_Object));
1091 extern void x_set_internal_border_width P_ ((struct frame *, Lisp_Object,
1092                                              Lisp_Object));
1093 extern void x_set_visibility P_ ((struct frame *, Lisp_Object, Lisp_Object));
1094 extern void x_set_autoraise P_ ((struct frame *, Lisp_Object, Lisp_Object));
1095 extern void x_set_autolower P_ ((struct frame *, Lisp_Object, Lisp_Object));
1096 extern void x_set_unsplittable P_ ((struct frame *, Lisp_Object, Lisp_Object));
1097 extern void x_set_vertical_scroll_bars P_ ((struct frame *, Lisp_Object,
1098                                             Lisp_Object));
1099 extern void x_set_scroll_bar_width P_ ((struct frame *, Lisp_Object,
1100                                         Lisp_Object));
1101
1102 extern Lisp_Object x_icon_type P_ ((struct frame *));
1103
1104 extern int x_figure_window_size P_ ((struct frame *, Lisp_Object, int));
1105
1106 extern Lisp_Object Vframe_alpha_lower_limit;
1107 extern void x_set_alpha P_ ((struct frame *, Lisp_Object, Lisp_Object));
1108
1109 extern void validate_x_resource_name P_ ((void));
1110
1111 extern Lisp_Object display_x_get_resource (Display_Info *,
1112                                            Lisp_Object attribute,
1113                                            Lisp_Object class,
1114                                            Lisp_Object component,
1115                                            Lisp_Object subclass);
1116
1117
1118 #endif /* HAVE_WINDOW_SYSTEM */
1119
1120 #endif /* not EMACS_FRAME_H */
1121
1122 /* arch-tag: 0df048ee-e6bf-4f48-bd56-e3cd055dd8c4
1123    (do not change this comment) */