src/frame.h

   1 /* Define frame-object for GNU Emacs.
   2    Copyright (C) 1993, 1994, 1999, 2000, 2001 Free Software Foundation, Inc.
   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
   8 the Free Software Foundation; either version 2, or (at your option)
   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, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* Don't multiply include: dispextern.h includes macterm.h which
  22    includes frame.h some emacs source includes both dispextern.h and
  23    frame.h */
  24
  25 #ifndef EMACS_FRAME_H
  26 #define EMACS_FRAME_H
  27
  28 \f
  29 /* Miscellanea.  */
  30
  31 /* Nonzero means don't assume anything about current contents of
  32    actual terminal frame */
  33
  34 extern int frame_garbaged;
  35
  36 /* Nonzero means FRAME_MESSAGE_BUF (selected_frame) is being used by
  37    print.  */
  38
  39 extern int message_buf_print;
  40
  41 \f
  42 /* The structure representing a frame.  */
  43
  44 enum output_method
  45 {
  46   output_termcap,
  47   output_x_window,
  48   output_msdos_raw,
  49   output_w32,
  50   output_mac
  51 };
  52
  53 enum vertical_scroll_bar_type
  54 {
  55   vertical_scroll_bar_none,
  56   vertical_scroll_bar_left,
  57   vertical_scroll_bar_right
  58 };
  59
  60 enum text_cursor_kinds
  61 {
  62   DEFAULT_CURSOR = -2,
  63   NO_CURSOR = -1,
  64   FILLED_BOX_CURSOR,
  65   HOLLOW_BOX_CURSOR,
  66   BAR_CURSOR,
  67   HBAR_CURSOR
  68 };
  69
  70 #if !defined(MSDOS) && !defined(WINDOWSNT) && !defined(MAC_OS)
  71
  72 #if !defined(HAVE_X_WINDOWS)
  73
  74 #define PIX_TYPE int
  75
  76 /* A (mostly empty) x_output structure definition for building Emacs
  77    on Unix and GNU/Linux without X support.  */
  78 struct x_output
  79 {
  80   PIX_TYPE background_pixel;
  81   PIX_TYPE foreground_pixel;
  82 };
  83
  84 #endif /* ! HAVE_X_WINDOWS */
  85
  86
  87 #define FRAME_FOREGROUND_PIXEL(f) ((f)->output_data.x->foreground_pixel)
  88 #define FRAME_BACKGROUND_PIXEL(f) ((f)->output_data.x->background_pixel)
  89
  90 /* A structure describing a termcap frame display.  */
  91 extern struct x_output tty_display;
  92
  93 #endif /* ! MSDOS && ! WINDOWSNT && ! MAC_OS */
  94
  95 struct frame
  96 {
  97   EMACS_INT size;
  98   struct Lisp_Vector *next;
  99
 100   /* All Lisp_Object components must come first.
 101      Only EMACS_INT values can be intermixed with them.
 102      That ensures they are all aligned normally.  */
 103
 104   /* Name of this frame: a Lisp string.  It is used for looking up resources,
 105      as well as for the title in some cases.  */
 106   Lisp_Object name;
 107
 108   /* The name to use for the icon, the last time
 109      it was refreshed.  nil means not explicitly specified.  */
 110   Lisp_Object icon_name;
 111
 112   /* This is the frame title specified explicitly, if any.
 113      Usually it is nil.  */
 114   Lisp_Object title;
 115
 116   /* The frame which should receive keystrokes that occur in this
 117      frame, or nil if they should go to the frame itself.  This is
 118      usually nil, but if the frame is minibufferless, we can use this
 119      to redirect keystrokes to a surrogate minibuffer frame when
 120      needed.
 121
 122      Note that a value of nil is different than having the field point
 123      to the frame itself.  Whenever the Fselect_frame function is used
 124      to shift from one frame to the other, any redirections to the
 125      original frame are shifted to the newly selected frame; if
 126      focus_frame is nil, Fselect_frame will leave it alone.  */
 127   Lisp_Object focus_frame;
 128
 129   /* This frame's root window.  Every frame has one.
 130      If the frame has only a minibuffer window, this is it.
 131      Otherwise, if the frame has a minibuffer window, this is its sibling.  */
 132   Lisp_Object root_window;
 133
 134   /* This frame's selected window.
 135      Each frame has its own window hierarchy
 136      and one of the windows in it is selected within the frame.
 137      The selected window of the selected frame is Emacs's selected window.  */
 138   Lisp_Object selected_window;
 139
 140   /* This frame's minibuffer window.
 141      Most frames have their own minibuffer windows,
 142      but only the selected frame's minibuffer window
 143      can actually appear to exist.  */
 144   Lisp_Object minibuffer_window;
 145
 146   /* Parameter alist of this frame.
 147      These are the parameters specified when creating the frame
 148      or modified with modify-frame-parameters.  */
 149   Lisp_Object param_alist;
 150
 151   /* List of scroll bars on this frame.
 152      Actually, we don't specify exactly what is stored here at all; the
 153      scroll bar implementation code can use it to store anything it likes.
 154      This field is marked by the garbage collector.  It is here
 155      instead of in the `display' structure so that the garbage
 156      collector doesn't need to look inside the window-system-dependent
 157      structure.  */
 158   Lisp_Object scroll_bars;
 159   Lisp_Object condemned_scroll_bars;
 160
 161   /* Vector describing the items to display in the menu bar.
 162      Each item has four elements in this vector.
 163      They are KEY, STRING, SUBMAP, and HPOS.
 164      (HPOS is not used in when the X toolkit is in use.)
 165      There are four additional elements of nil at the end, to terminate.  */
 166   Lisp_Object menu_bar_items;
 167
 168   /* Alist of elements (FACE-NAME . FACE-VECTOR-DATA).  */
 169   Lisp_Object face_alist;
 170
 171   /* A vector that records the entire structure of this frame's menu bar.
 172      For the format of the data, see extensive comments in xmenu.c.
 173      Only the X toolkit version uses this.  */
 174   Lisp_Object menu_bar_vector;
 175   /* Number of elements in the vector that have meaningful data.  */
 176   EMACS_INT menu_bar_items_used;
 177
 178   /* Predicate for selecting buffers for other-buffer.  */
 179   Lisp_Object buffer_predicate;
 180
 181   /* List of buffers viewed in this frame, for other-buffer.  */
 182   Lisp_Object 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   /* A buffer to hold the frame's name.  We can't use the Lisp
 203      string's pointer (`name', above) because it might get relocated.  */
 204   char *namebuf;
 205
 206   /* Glyph pool and matrix. */
 207   struct glyph_pool *current_pool;
 208   struct glyph_pool *desired_pool;
 209   struct glyph_matrix *desired_matrix;
 210   struct glyph_matrix *current_matrix;
 211
 212   /* 1 means that glyphs on this frame have been initialized so it can
 213      be used for output.  */
 214   unsigned glyphs_initialized_p : 1;
 215
 216 #if defined (USE_GTK)
 217   /* Nonzero means using a tool bar that comes from the toolkit.  */
 218   int external_tool_bar;
 219 #endif
 220
 221   /* Margin at the top of the frame.  Used to display the tool-bar.  */
 222   int tool_bar_lines;
 223
 224   int n_tool_bar_items;
 225
 226   /* A buffer for decode_mode_line. */
 227   char *decode_mode_spec_buffer;
 228
 229   /* See do_line_insertion_deletion_costs for info on these arrays. */
 230   /* Cost of inserting 1 line on this frame */
 231   int *insert_line_cost;
 232   /* Cost of deleting 1 line on this frame */
 233   int *delete_line_cost;
 234   /* Cost of inserting n lines on this frame */
 235   int *insert_n_lines_cost;
 236   /* Cost of deleting n lines on this frame */
 237   int *delete_n_lines_cost;
 238
 239   /* Size of this frame, excluding fringes, scroll bars etc.,
 240      in units of canonical characters.  */
 241   EMACS_INT text_lines, text_cols;
 242
 243   /* Total size of this frame (i.e. its native window), in units of
 244      canonical characters.  */
 245   EMACS_INT total_lines, total_cols;
 246
 247   /* New text height and width for pending size change.
 248      0 if no change pending.  */
 249   int new_text_lines, new_text_cols;
 250
 251   /* Pixel position of the frame window (x and y offsets in root window).  */
 252   int left_pos, top_pos;
 253
 254   /* Size of the frame window in pixels.  */
 255   int pixel_height, pixel_width;
 256
 257   /* These many pixels are the difference between the outer window (i.e. the
 258      left and top of the window manager decoration) and FRAME_X_WINDOW. */
 259   int x_pixels_diff, y_pixels_diff;
 260
 261   /* This is the gravity value for the specified window position.  */
 262   int win_gravity;
 263
 264   /* The geometry flags for this window.  */
 265   int size_hint_flags;
 266
 267   /* Border width of the frame window as known by the (X) window system.  */
 268   int border_width;
 269
 270   /* Width of the internal border.  This is a line of background color
 271      just inside the window's border.  When the frame is selected,
 272      a highlighting is displayed inside the internal border.  */
 273   int internal_border_width;
 274
 275   /* Canonical X unit.  Width of default font, in pixels.  */
 276   int column_width;
 277
 278   /* Widht of space glyph of default font, in pixels.  */
 279   int space_width;
 280
 281   /* Canonical Y unit.  Height of a line, in pixels.  */
 282   int line_height;
 283
 284   /* The output method says how the contents of this frame
 285      are displayed.  It could be using termcap, or using an X window.  */
 286   enum output_method output_method;
 287
 288   /* A structure of auxiliary data used for displaying the contents.
 289      struct x_output is used for X window frames;
 290      it is defined in xterm.h.
 291      struct w32_output is used for W32 window frames;
 292      it is defined in w32term.h.  */
 293   union output_data
 294   {
 295     struct x_output *x;
 296     struct w32_output *w32;
 297     struct mac_output *mac;
 298     EMACS_INT nothing;
 299   }
 300   output_data;
 301
 302   /* Total width of fringes reserved for drawing truncation bitmaps,
 303      continuation bitmaps and alike.  The width is in canonical char
 304      units of the frame.  This must currently be the case because window
 305      sizes aren't pixel values.  If it weren't the case, we wouldn't be
 306      able to split windows horizontally nicely.  */
 307   int fringe_cols;
 308
 309   /* The extra width (in pixels) currently allotted for fringes.  */
 310   int left_fringe_width, right_fringe_width;
 311
 312 #ifdef MULTI_KBOARD
 313   /* A pointer to the kboard structure associated with this frame.
 314      For termcap frames, this points to initial_kboard.  For X frames,
 315      it will be the same as display.x->display_info->kboard.  */
 316   struct kboard *kboard;
 317 #endif
 318
 319   /* See FULLSCREEN_ enum below */
 320   int want_fullscreen;
 321
 322   /* Number of lines of menu bar.  */
 323   int menu_bar_lines;
 324
 325 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
 326     || defined (USE_GTK)
 327   /* Nonzero means using a menu bar that comes from the X toolkit.  */
 328   int external_menu_bar;
 329 #endif
 330
 331   /* Nonzero if last attempt at redisplay on this frame was preempted.  */
 332   char display_preempted;
 333
 334   /* visible is nonzero if the frame is currently displayed; we check
 335      it to see if we should bother updating the frame's contents.
 336      DON'T SET IT DIRECTLY; instead, use FRAME_SET_VISIBLE.
 337
 338      Note that, since invisible frames aren't updated, whenever a
 339      frame becomes visible again, it must be marked as garbaged.  The
 340      FRAME_SAMPLE_VISIBILITY macro takes care of this.
 341
 342      On Windows NT/9X, to avoid wasting effort updating visible frames
 343      that are actually completely obscured by other windows on the
 344      display, we bend the meaning of visible slightly: if greater than
 345      1, then the frame is obscured - we still consider it to be
 346      "visible" as seen from lisp, but we don't bother updating it.  We
 347      must take care to garbage the frame when it ceaces to be obscured
 348      though.  Note that these semantics are only used on NT/9X.
 349
 350      iconified is nonzero if the frame is currently iconified.
 351
 352      Asynchronous input handlers should NOT change these directly;
 353      instead, they should change async_visible or async_iconified, and
 354      let the FRAME_SAMPLE_VISIBILITY macro set visible and iconified
 355      at the next redisplay.
 356
 357      These should probably be considered read-only by everyone except
 358      FRAME_SAMPLE_VISIBILITY.
 359
 360      These two are mutually exclusive.  They might both be zero, if the
 361      frame has been made invisible without an icon.  */
 362   char visible, iconified;
 363
 364   /* Asynchronous input handlers change these, and
 365      FRAME_SAMPLE_VISIBILITY copies them into visible and iconified.
 366      See FRAME_SAMPLE_VISIBILITY, below.  */
 367   volatile char async_visible, async_iconified;
 368
 369   /* Nonzero if this frame should be redrawn.  */
 370   volatile char garbaged;
 371
 372   /* True if frame actually has a minibuffer window on it.
 373      0 if using a minibuffer window that isn't on this frame.  */
 374   char has_minibuffer;
 375
 376   /* 0 means, if this frame has just one window,
 377      show no modeline for that window.  */
 378   char wants_modeline;
 379
 380   /* Non-zero if the hardware device this frame is displaying on can
 381      support scroll bars.  */
 382   char can_have_scroll_bars;
 383
 384   /* If can_have_scroll_bars is non-zero, this is non-zero if we should
 385      actually display them on this frame.  */
 386   enum vertical_scroll_bar_type vertical_scroll_bar_type;
 387
 388   /* What kind of text cursor should we draw in the future?
 389      This should always be filled_box_cursor or bar_cursor.  */
 390   enum text_cursor_kinds desired_cursor;
 391
 392   /* Width of bar cursor (if we are using that).  */
 393   int cursor_width;
 394
 395   /* What kind of text cursor should we draw when the cursor blinks off?
 396      This can be filled_box_cursor or bar_cursor or no_cursor.  */
 397   enum text_cursor_kinds blink_off_cursor;
 398
 399   /* Width of bar cursor (if we are using that) for blink-off state.  */
 400   int blink_off_cursor_width;
 401
 402   /* Non-0 means raise this frame to the top of the heap when selected.  */
 403   char auto_raise;
 404
 405   /* Non-0 means lower this frame to the bottom of the stack when left.  */
 406   char auto_lower;
 407
 408   /* True if frame's root window can't be split.  */
 409   char no_split;
 410
 411   /* If this is set, then Emacs won't change the frame name to indicate
 412      the current buffer, etcetera.  If the user explicitly sets the frame
 413      name, this gets set.  If the user sets the name to Qnil, this is
 414      cleared.  */
 415   char explicit_name;
 416
 417   /* Nonzero if size of some window on this frame has changed.  */
 418   char window_sizes_changed;
 419
 420   /* Storage for messages to this frame. */
 421   char *message_buf;
 422
 423   /* Nonnegative if current redisplay should not do scroll computation
 424      for lines beyond a certain vpos.  This is the vpos.  */
 425   int scroll_bottom_vpos;
 426
 427   /* Configured width of the scroll bar, in pixels and in characters.
 428      config_scroll_bar_cols tracks config_scroll_bar_width if the
 429      latter is positive; a zero value in config_scroll_bar_width means
 430      to compute the actual width on the fly, using config_scroll_bar_cols
 431      and the current font width.  */
 432   int config_scroll_bar_width;
 433   int config_scroll_bar_cols;
 434
 435   /* The size of the extra width currently allotted for vertical
 436      scroll bars in this frame, in pixels.  */
 437   int scroll_bar_actual_width;
 438
 439   /* The baud rate that was used to calculate costs for this frame.  */
 440   int cost_calculation_baud_rate;
 441
 442   /* Nonzero if the mouse has moved on this display
 443      since the last time we checked.  */
 444   char mouse_moved;
 445
 446   /* Exponent for gamma correction of colors.  1/(VIEWING_GAMMA *
 447      SCREEN_GAMMA) where viewing_gamma is 0.4545 and SCREEN_GAMMA is a
 448      frame parameter.  0 means don't do gamma correction.  */
 449   double gamma;
 450
 451   /* Additional space to put between text lines on this frame.  */
 452   int extra_line_spacing;
 453
 454   /* Set to non-zero in change_frame_size when size of frame changed
 455      Clear the frame in clear_garbaged_frames if set.  */
 456   unsigned resized_p : 1;
 457
 458   /* Set to non-zero in when we want for force a flush_display in
 459      update_frame, usually after resizing the frame.  */
 460   unsigned force_flush_display_p : 1;
 461
 462   /* Set to non-zero if the default face for the frame has been
 463      realized.  Reset to zero whenever the default face changes.
 464      Used to see the difference between a font change and face change.  */
 465   unsigned default_face_done_p : 1;
 466 };
 467
 468 #ifdef MULTI_KBOARD
 469 #define FRAME_KBOARD(f) ((f)->kboard)
 470 #else
 471 #define FRAME_KBOARD(f) (&the_only_kboard)
 472 #endif
 473
 474 typedef struct frame *FRAME_PTR;
 475
 476 #define XFRAME(p) (eassert (GC_FRAMEP(p)),(struct frame *) XPNTR (p))
 477 #define XSETFRAME(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_FRAME))
 478
 479 /* Given a window, return its frame as a Lisp_Object.  */
 480 #define WINDOW_FRAME(w) (w)->frame
 481
 482 /* Test a frame for particular kinds of display methods.  */
 483 #define FRAME_TERMCAP_P(f) ((f)->output_method == output_termcap)
 484 #define FRAME_X_P(f) ((f)->output_method == output_x_window)
 485 #define FRAME_W32_P(f) ((f)->output_method == output_w32)
 486 #define FRAME_MSDOS_P(f) ((f)->output_method == output_msdos_raw)
 487 #define FRAME_MAC_P(f) ((f)->output_method == output_mac)
 488
 489 /* FRAME_WINDOW_P tests whether the frame is a window, and is
 490    defined to be the predicate for the window system being used.  */
 491
 492 #ifdef HAVE_X_WINDOWS
 493 #define FRAME_WINDOW_P(f) FRAME_X_P (f)
 494 #endif
 495 #ifdef HAVE_NTGUI
 496 #define FRAME_WINDOW_P(f) FRAME_W32_P (f)
 497 #endif
 498 #ifdef MAC_OS
 499 #define FRAME_WINDOW_P(f) FRAME_MAC_P (f)
 500 #endif
 501 #ifndef FRAME_WINDOW_P
 502 #define FRAME_WINDOW_P(f) (0)
 503 #endif
 504
 505 /* Nonzero if frame F is still alive (not deleted).  */
 506 #define FRAME_LIVE_P(f) ((f)->output_data.nothing != 0)
 507
 508 /* Nonzero if frame F is a minibuffer-only frame.  */
 509 #define FRAME_MINIBUF_ONLY_P(f) \
 510   EQ (FRAME_ROOT_WINDOW (f), FRAME_MINIBUF_WINDOW (f))
 511
 512 /* Nonzero if frame F contains a minibuffer window.
 513    (If this is 0, F must use some other minibuffer window.)  */
 514 #define FRAME_HAS_MINIBUF_P(f) ((f)->has_minibuffer)
 515
 516 /* Pixel height of frame F, including non-toolkit menu bar and
 517    non-toolkit tool bar lines.  */
 518 #define FRAME_PIXEL_HEIGHT(f) ((f)->pixel_height)
 519
 520 /* Pixel width of frame F.  */
 521 #define FRAME_PIXEL_WIDTH(f) ((f)->pixel_width)
 522
 523 /* Height of frame F, measured in canonical lines, including
 524    non-toolkit menu bar and non-toolkit tool bar lines.  */
 525 #define FRAME_LINES(f) (f)->text_lines
 526
 527 /* Width of frame F, measured in canonical character columns,
 528    not including scroll bars if any.  */
 529 #define FRAME_COLS(f) (f)->text_cols
 530
 531 /* Number of lines of frame F used for menu bar.
 532    This is relevant on terminal frames and on
 533    X Windows when not using the X toolkit.
 534    These lines are counted in FRAME_LINES.  */
 535 #define FRAME_MENU_BAR_LINES(f) (f)->menu_bar_lines
 536
 537 /* Nonzero if this frame should display a tool bar
 538    in a way that does not use any text lines.  */
 539 #if defined (USE_GTK)
 540 #define FRAME_EXTERNAL_TOOL_BAR(f) (f)->external_tool_bar
 541 #else
 542 #define FRAME_EXTERNAL_TOOL_BAR(f) 0
 543 #endif
 544
 545 /* Number of lines of frame F used for the tool-bar.  */
 546
 547 #define FRAME_TOOL_BAR_LINES(f) (f)->tool_bar_lines
 548
 549
 550 /* Lines above the top-most window in frame F.  */
 551
 552 #define FRAME_TOP_MARGIN(F) \
 553      (FRAME_MENU_BAR_LINES (F) + FRAME_TOOL_BAR_LINES (F))
 554
 555 /* Nonzero if this frame should display a menu bar
 556    in a way that does not use any text lines.  */
 557 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
 558     || defined (USE_GTK)
 559 #define FRAME_EXTERNAL_MENU_BAR(f) (f)->external_menu_bar
 560 #else
 561 #define FRAME_EXTERNAL_MENU_BAR(f) 0
 562 #endif
 563 #define FRAME_VISIBLE_P(f) ((f)->visible != 0)
 564
 565 /* Nonzero if frame F is currently visible but hidden.  */
 566 #define FRAME_OBSCURED_P(f) ((f)->visible > 1)
 567
 568 /* Nonzero if frame F is currently iconified.  */
 569 #define FRAME_ICONIFIED_P(f) (f)->iconified
 570
 571 #define FRAME_SET_VISIBLE(f,p) \
 572   ((f)->async_visible = (p), FRAME_SAMPLE_VISIBILITY (f))
 573 #define SET_FRAME_GARBAGED(f) (frame_garbaged = 1, f->garbaged = 1)
 574 #define FRAME_GARBAGED_P(f) (f)->garbaged
 575
 576 /* Nonzero means do not allow splitting this frame's window.  */
 577 #define FRAME_NO_SPLIT_P(f) (f)->no_split
 578
 579 /* Not really implemented.  */
 580 #define FRAME_WANTS_MODELINE_P(f) (f)->wants_modeline
 581
 582 /* Nonzero if a size change has been requested for frame F
 583    but not yet really put into effect.  This can be true temporarily
 584    when an X event comes in at a bad time.  */
 585 #define FRAME_WINDOW_SIZES_CHANGED(f) (f)->window_sizes_changed
 586
 587 /* The minibuffer window of frame F, if it has one; otherwise nil.  */
 588 #define FRAME_MINIBUF_WINDOW(f) (f)->minibuffer_window
 589
 590 /* The root window of the window tree of frame F.  */
 591 #define FRAME_ROOT_WINDOW(f) (f)->root_window
 592
 593 /* The currently selected window of the window tree of frame F.  */
 594 #define FRAME_SELECTED_WINDOW(f) (f)->selected_window
 595
 596 #define FRAME_INSERT_COST(f) (f)->insert_line_cost
 597 #define FRAME_DELETE_COST(f) (f)->delete_line_cost
 598 #define FRAME_INSERTN_COST(f) (f)->insert_n_lines_cost
 599 #define FRAME_DELETEN_COST(f) (f)->delete_n_lines_cost
 600 #define FRAME_MESSAGE_BUF(f) (f)->message_buf
 601 #define FRAME_SCROLL_BOTTOM_VPOS(f) (f)->scroll_bottom_vpos
 602 #define FRAME_FOCUS_FRAME(f) (f)->focus_frame
 603
 604 /* Nonzero if frame F supports scroll bars.
 605    If this is zero, then it is impossible to enable scroll bars
 606    on frame F.  */
 607 #define FRAME_CAN_HAVE_SCROLL_BARS(f) ((f)->can_have_scroll_bars)
 608
 609 /* This frame slot says whether scroll bars are currently enabled for frame F,
 610    and which side they are on.  */
 611 #define FRAME_VERTICAL_SCROLL_BAR_TYPE(f) ((f)->vertical_scroll_bar_type)
 612 #define FRAME_HAS_VERTICAL_SCROLL_BARS(f) \
 613      ((f)->vertical_scroll_bar_type != vertical_scroll_bar_none)
 614 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT(f) \
 615      ((f)->vertical_scroll_bar_type == vertical_scroll_bar_left)
 616 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT(f) \
 617      ((f)->vertical_scroll_bar_type == vertical_scroll_bar_right)
 618
 619 /* Width that a scroll bar in frame F should have, if there is one.
 620    Measured in pixels.
 621    If scroll bars are turned off, this is still nonzero.  */
 622 #define FRAME_CONFIG_SCROLL_BAR_WIDTH(f) ((f)->config_scroll_bar_width)
 623
 624 /* Width that a scroll bar in frame F should have, if there is one.
 625    Measured in columns (characters).
 626    If scroll bars are turned off, this is still nonzero.  */
 627 #define FRAME_CONFIG_SCROLL_BAR_COLS(f) ((f)->config_scroll_bar_cols)
 628
 629 /* Width of a scroll bar in frame F, measured in columns (characters),
 630    but only if scroll bars are on the left.  If scroll bars are on
 631    the right in this frame, or there are no scroll bars, value is 0.  */
 632
 633 #define FRAME_LEFT_SCROLL_BAR_COLS(f)                   \
 634      (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)        \
 635       ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                \
 636       : 0)
 637
 638 /* Width of a left scroll bar in frame F, measured in pixels */
 639
 640 #define FRAME_LEFT_SCROLL_BAR_AREA_WIDTH(f)                                     \
 641   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)                           \
 642    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 643    : 0)
 644
 645 /* Width of a scroll bar in frame F, measured in columns (characters),
 646    but only if scroll bars are on the right.  If scroll bars are on
 647    the left in this frame, or there are no scroll bars, value is 0.  */
 648
 649 #define FRAME_RIGHT_SCROLL_BAR_COLS(f)                  \
 650      (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)       \
 651       ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                \
 652       : 0)
 653
 654 /* Width of a right scroll bar area in frame F, measured in pixels */
 655
 656 #define FRAME_RIGHT_SCROLL_BAR_AREA_WIDTH(f)                                    \
 657   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)                          \
 658    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 659    : 0)
 660
 661 /* Actual width of a scroll bar in frame F, measured in columns.  */
 662
 663 #define FRAME_SCROLL_BAR_COLS(f)                        \
 664      (FRAME_HAS_VERTICAL_SCROLL_BARS (f)                \
 665       ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                \
 666       : 0)
 667
 668 /* Actual width of a scroll bar area in frame F, measured in pixels.  */
 669
 670 #define FRAME_SCROLL_BAR_AREA_WIDTH(f)                                  \
 671   (FRAME_HAS_VERTICAL_SCROLL_BARS (f)                                   \
 672    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 673    : 0)
 674
 675 /* Total width of frame F, in columns (characters),
 676    including the width used by scroll bars if any.  */
 677
 678 #define FRAME_TOTAL_COLS(f) ((f)->total_cols)
 679
 680 /* Set the width of frame F to VAL.
 681    VAL is the width of a full-frame window,
 682    not including scroll bars and fringes.  */
 683
 684 #define SET_FRAME_COLS(f, val)                                          \
 685      (FRAME_COLS (f) = (val),                                           \
 686       (f)->total_cols = FRAME_TOTAL_COLS_ARG (f, FRAME_COLS (f)))
 687
 688 /* Given a value WIDTH for frame F's nominal width,
 689    return the value that FRAME_TOTAL_COLS should have.  */
 690
 691 #define FRAME_TOTAL_COLS_ARG(f, width)          \
 692      ((width)                                   \
 693       + FRAME_SCROLL_BAR_COLS (f)               \
 694       + FRAME_FRINGE_COLS (f))
 695
 696 /* Maximum + 1 legitimate value for FRAME_CURSOR_X.  */
 697
 698 #define FRAME_CURSOR_X_LIMIT(f) \
 699      (FRAME_COLS (f) + FRAME_LEFT_SCROLL_BAR_COLS (f))
 700
 701 /* Nonzero if frame F has scroll bars.  */
 702
 703 #define FRAME_SCROLL_BARS(f) ((f)->scroll_bars)
 704
 705 #define FRAME_CONDEMNED_SCROLL_BARS(f) ((f)->condemned_scroll_bars)
 706 #define FRAME_MENU_BAR_ITEMS(f) ((f)->menu_bar_items)
 707 #define FRAME_COST_BAUD_RATE(f) ((f)->cost_calculation_baud_rate)
 708
 709 #define FRAME_DESIRED_CURSOR(f) ((f)->desired_cursor)
 710 #define FRAME_BLINK_OFF_CURSOR(f) ((f)->blink_off_cursor)
 711 #define FRAME_CURSOR_WIDTH(f) ((f)->cursor_width)
 712 #define FRAME_BLINK_OFF_CURSOR_WIDTH(f) ((f)->blink_off_cursor_width)
 713
 714 /* Return a pointer to the face cache of frame F.  */
 715
 716 #define FRAME_FACE_CACHE(F)     (F)->face_cache
 717
 718 /* Return the size of message_buf of the frame F.  We multiply the
 719    width of the frame by 4 because multi-byte form may require at most
 720    4-byte for a character.  */
 721
 722 #define FRAME_MESSAGE_BUF_SIZE(f) (((int) FRAME_COLS (f)) * 4)
 723
 724 /* Emacs's redisplay code could become confused if a frame's
 725    visibility changes at arbitrary times.  For example, if a frame is
 726    visible while the desired glyphs are being built, but becomes
 727    invisible before they are updated, then some rows of the
 728    desired_glyphs will be left marked as enabled after redisplay is
 729    complete, which should never happen.  The next time the frame
 730    becomes visible, redisplay will probably barf.
 731
 732    Currently, there are no similar situations involving iconified, but
 733    the principle is the same.
 734
 735    So instead of having asynchronous input handlers directly set and
 736    clear the frame's visibility and iconification flags, they just set
 737    the async_visible and async_iconified flags; the redisplay code
 738    calls the FRAME_SAMPLE_VISIBILITY macro before doing any redisplay,
 739    which sets visible and iconified from their asynchronous
 740    counterparts.
 741
 742    Synchronous code must use the FRAME_SET_VISIBLE macro.
 743
 744    Also, if a frame used to be invisible, but has just become visible,
 745    it must be marked as garbaged, since redisplay hasn't been keeping
 746    up its contents.  */
 747
 748 #define FRAME_SAMPLE_VISIBILITY(f) \
 749   (((f)->async_visible && (f)->visible != (f)->async_visible) ? \
 750    SET_FRAME_GARBAGED (f) : 0, \
 751    (f)->visible = (f)->async_visible, \
 752    (f)->iconified = (f)->async_iconified)
 753
 754 #define CHECK_FRAME(x)                                  \
 755      do {                                               \
 756        if (! FRAMEP (x))                                \
 757          x = wrong_type_argument (Qframep, (x));        \
 758      } while (0)
 759
 760 #define CHECK_LIVE_FRAME(x)                             \
 761      do {                                               \
 762        if (! FRAMEP (x)                                 \
 763            || ! FRAME_LIVE_P (XFRAME (x)))              \
 764          x = wrong_type_argument (Qframe_live_p, (x));  \
 765      } while (0)
 766
 767 /* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
 768    `for' loop which iterates over the elements of Vframe_list.  The
 769    loop will set FRAME_VAR, a Lisp_Object, to each frame in
 770    Vframe_list in succession and execute the statement.  LIST_VAR
 771    should be a Lisp_Object too; it is used to iterate through the
 772    Vframe_list.
 773
 774    This macro is a holdover from a time when multiple frames weren't always
 775    supported.  An alternate definition of the macro would expand to
 776    something which executes the statement once.  */
 777
 778 #define FOR_EACH_FRAME(list_var, frame_var)                     \
 779   for ((list_var) = Vframe_list;                                \
 780        (CONSP (list_var)                                        \
 781         && (frame_var = XCAR (list_var), 1));           \
 782        list_var = XCDR (list_var))
 783
 784
 785 extern Lisp_Object Qframep, Qframe_live_p;
 786
 787 extern struct frame *last_nonminibuf_frame;
 788
 789 extern struct frame *make_terminal_frame P_ ((void));
 790 extern struct frame *make_frame P_ ((int));
 791 #ifdef HAVE_WINDOW_SYSTEM
 792 extern struct frame *make_minibuffer_frame P_ ((void));
 793 extern struct frame *make_frame_without_minibuffer P_ ((Lisp_Object,
 794                                                         struct kboard *,
 795                                                         Lisp_Object));
 796 #endif /* HAVE_WINDOW_SYSTEM */
 797 extern int other_visible_frames P_ ((struct frame *));
 798
 799 extern Lisp_Object Vframe_list;
 800 extern Lisp_Object Vdefault_frame_alist;
 801
 802 extern Lisp_Object Vterminal_frame;
 803
 804 extern Lisp_Object Vmouse_highlight;
 805 \f
 806 /* The currently selected frame.  */
 807
 808 extern Lisp_Object selected_frame;
 809
 810 /* Value is a pointer to the selected frame.  If the selected frame
 811    isn't live, abort.  */
 812
 813 #define SELECTED_FRAME()                                \
 814      ((FRAMEP (selected_frame)                          \
 815        && FRAME_LIVE_P (XFRAME (selected_frame)))       \
 816       ? XFRAME (selected_frame)                         \
 817       : (abort (), (struct frame *) 0))
 818
 819 \f
 820 /***********************************************************************
 821                         Display-related Macros
 822  ***********************************************************************/
 823
 824 /* Canonical y-unit on frame F.
 825    This value currently equals the line height of the frame (which is
 826    the height of the default font of F).  */
 827
 828 #define FRAME_LINE_HEIGHT(F) ((F)->line_height)
 829
 830 /* Canonical x-unit on frame F.
 831    This value currently equals the average width of the default font of F.  */
 832
 833 #define FRAME_COLUMN_WIDTH(F) ((F)->column_width)
 834
 835 /* Space glyph width of the default font of frame F.  */
 836
 837 #define FRAME_SPACE_WIDTH(F) ((F)->space_width)
 838
 839
 840 /* Pixel width of areas used to display truncation marks, continuation
 841    marks, overlay arrows.  This is 0 for terminal frames.  */
 842
 843 #ifdef HAVE_WINDOW_SYSTEM
 844
 845 /* Total width of fringes reserved for drawing truncation bitmaps,
 846    continuation bitmaps and alike.  The width is in canonical char
 847    units of the frame.  This must currently be the case because window
 848    sizes aren't pixel values.  If it weren't the case, we wouldn't be
 849    able to split windows horizontally nicely.  */
 850
 851 #define FRAME_FRINGE_COLS(F) ((F)->fringe_cols)
 852
 853 /* Pixel-width of the left and right fringe.  */
 854
 855 #define FRAME_LEFT_FRINGE_WIDTH(F) ((F)->left_fringe_width)
 856 #define FRAME_RIGHT_FRINGE_WIDTH(F) ((F)->right_fringe_width)
 857
 858 /* Total width of fringes in pixels.  */
 859
 860 #define FRAME_TOTAL_FRINGE_WIDTH(F) \
 861   (FRAME_LEFT_FRINGE_WIDTH (F) + FRAME_RIGHT_FRINGE_WIDTH (F))
 862
 863
 864 /* Pixel-width of internal border lines */
 865
 866 #define FRAME_INTERNAL_BORDER_WIDTH(F) ((F)->internal_border_width)
 867
 868 #else /* not HAVE_WINDOW_SYSTEM */
 869
 870 #define FRAME_FRINGE_COLS(F)    0
 871 #define FRAME_TOTAL_FRINGE_WIDTH(F)     0
 872 #define FRAME_LEFT_FRINGE_WIDTH(F)  0
 873 #define FRAME_RIGHT_FRINGE_WIDTH(F) 0
 874 #define FRAME_INTERNAL_BORDER_WIDTH(F) 0
 875
 876 #endif /* not HAVE_WINDOW_SYSTEM */
 877
 878
 879
 880 \f
 881 /***********************************************************************
 882             Conversion between canonical units and pixels
 883  ***********************************************************************/
 884
 885 /* Canonical x-values are fractions of FRAME_COLUMN_WIDTH, canonical
 886    y-unit are fractions of FRAME_LINE_HEIGHT of a frame.  Both are
 887    represented as Lisp numbers, i.e. integers or floats.  */
 888
 889 /* Convert canonical value X to pixels.  F is the frame whose
 890    canonical char width is to be used.  X must be a Lisp integer or
 891    float.  Value is a C integer.  */
 892
 893 #define FRAME_PIXEL_X_FROM_CANON_X(F, X)                \
 894      (INTEGERP (X)                                      \
 895       ? XINT (X) * FRAME_COLUMN_WIDTH (F)               \
 896       : (int) (XFLOAT_DATA (X) * FRAME_COLUMN_WIDTH (F)))
 897
 898 /* Convert canonical value Y to pixels.  F is the frame whose
 899    canonical character height is to be used.  X must be a Lisp integer
 900    or float.  Value is a C integer.  */
 901
 902 #define FRAME_PIXEL_Y_FROM_CANON_Y(F, Y)                \
 903      (INTEGERP (Y)                                      \
 904       ? XINT (Y) * FRAME_LINE_HEIGHT (F)                \
 905       : (int) (XFLOAT_DATA (Y) * FRAME_LINE_HEIGHT (F)))
 906
 907 /* Convert pixel-value X to canonical units.  F is the frame whose
 908    canonical character width is to be used.  X is a C integer.  Result
 909    is a Lisp float if X is not a multiple of the canon width,
 910    otherwise it's a Lisp integer.  */
 911
 912 #define FRAME_CANON_X_FROM_PIXEL_X(F, X)                        \
 913      ((X) % FRAME_COLUMN_WIDTH (F) != 0                         \
 914       ? make_float ((double) (X) / FRAME_COLUMN_WIDTH (F))      \
 915       : make_number ((X) / FRAME_COLUMN_WIDTH (F)))
 916
 917 /* Convert pixel-value Y to canonical units.  F is the frame whose
 918    canonical character height is to be used.  Y is a C integer.
 919    Result is a Lisp float if Y is not a multiple of the canon width,
 920    otherwise it's a Lisp integer.  */
 921
 922 #define FRAME_CANON_Y_FROM_PIXEL_Y(F, Y)                        \
 923      ((Y) % FRAME_LINE_HEIGHT (F)                               \
 924       ? make_float ((double) (Y) / FRAME_LINE_HEIGHT (F))       \
 925       : make_number ((Y) / FRAME_LINE_HEIGHT (F)))
 926
 927
 928 \f
 929 /* Manipulating pixel sizes and character sizes.
 930    Knowledge of which factors affect the overall size of the window should
 931    be hidden in these macros, if that's possible.
 932
 933    Return the upper/left pixel position of the character cell on frame F
 934    at ROW/COL.  */
 935
 936 #define FRAME_LINE_TO_PIXEL_Y(f, row) \
 937   (FRAME_INTERNAL_BORDER_WIDTH (f)  \
 938    + (row) * FRAME_LINE_HEIGHT (f))
 939
 940 #define FRAME_COL_TO_PIXEL_X(f, col) \
 941   (FRAME_INTERNAL_BORDER_WIDTH (f) \
 942    + (col) * FRAME_COLUMN_WIDTH (f))
 943
 944 /* Return the pixel width/height of frame F if it has
 945    COLS columns/LINES rows.  */
 946
 947 #define FRAME_TEXT_COLS_TO_PIXEL_WIDTH(f, cols) \
 948   (FRAME_COL_TO_PIXEL_X (f, cols) \
 949    + (f)->scroll_bar_actual_width \
 950    + FRAME_TOTAL_FRINGE_WIDTH (f)      \
 951    + FRAME_INTERNAL_BORDER_WIDTH (f))
 952
 953 #define FRAME_TEXT_LINES_TO_PIXEL_HEIGHT(f, lines) \
 954   (FRAME_LINE_TO_PIXEL_Y (f, lines) \
 955    + FRAME_INTERNAL_BORDER_WIDTH (f))
 956
 957
 958 /* Return the row/column (zero-based) of the character cell containing
 959    the pixel on FRAME at Y/X.  */
 960
 961 #define FRAME_PIXEL_Y_TO_LINE(f, y) \
 962   (((y) - FRAME_INTERNAL_BORDER_WIDTH (f))      \
 963    / FRAME_LINE_HEIGHT (f))
 964
 965 #define FRAME_PIXEL_X_TO_COL(f, x) \
 966   (((x) - FRAME_INTERNAL_BORDER_WIDTH (f))      \
 967    / FRAME_COLUMN_WIDTH (f))
 968
 969 /* How many columns/rows of text can we fit in WIDTH/HEIGHT pixels on
 970    frame F?  */
 971
 972 #define FRAME_PIXEL_WIDTH_TO_TEXT_COLS(f, width)                \
 973   (FRAME_PIXEL_X_TO_COL (f, ((width)                            \
 974                              - FRAME_INTERNAL_BORDER_WIDTH (f)  \
 975                              - FRAME_TOTAL_FRINGE_WIDTH (f)     \
 976                              - (f)->scroll_bar_actual_width)))
 977
 978 #define FRAME_PIXEL_HEIGHT_TO_TEXT_LINES(f, height) \
 979   (FRAME_PIXEL_Y_TO_LINE (f, ((height) \
 980                               - FRAME_INTERNAL_BORDER_WIDTH (f))))
 981
 982
 983 /***********************************************************************
 984                                 Frame Parameters
 985  ***********************************************************************/
 986
 987 extern Lisp_Object Qauto_raise, Qauto_lower;
 988 extern Lisp_Object Qborder_color, Qborder_width;
 989 extern Lisp_Object Qbuffer_predicate, Qbuffer_list;
 990 extern Lisp_Object Qcursor_color, Qcursor_type;
 991 extern Lisp_Object Qfont;
 992 extern Lisp_Object Qbackground_color, Qforeground_color;
 993 extern Lisp_Object Qicon, Qicon_name, Qicon_type, Qicon_left, Qicon_top;
 994 extern Lisp_Object Qinternal_border_width;
 995 extern Lisp_Object Qmenu_bar_lines, Qtool_bar_lines;
 996 extern Lisp_Object Qmouse_color;
 997 extern Lisp_Object Qname, Qtitle;
 998 extern Lisp_Object Qparent_id;
 999 extern Lisp_Object Qunsplittable, Qvisibility;
1000 extern Lisp_Object Qscroll_bar_width, Qvertical_scroll_bars;
1001 extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background;
1002 extern Lisp_Object Qscreen_gamma;
1003 extern Lisp_Object Qline_spacing;
1004 extern Lisp_Object Qwait_for_wm;
1005 extern Lisp_Object Qfullscreen;
1006
1007 extern Lisp_Object Qleft_fringe, Qright_fringe;
1008 extern Lisp_Object Qheight, Qwidth;
1009 extern Lisp_Object Qminibuffer, Qmodeline;
1010 extern Lisp_Object Qonly;
1011 extern Lisp_Object Qx, Qw32, Qmac, Qpc;
1012 extern Lisp_Object Qvisible;
1013 extern Lisp_Object Qdisplay_type;
1014 extern Lisp_Object Qbackground_mode;
1015
1016 extern Lisp_Object Qx_resource_name;
1017
1018 extern Lisp_Object Qleft, Qright, Qtop, Qbox;
1019 extern Lisp_Object Qdisplay;
1020
1021 #ifdef HAVE_WINDOW_SYSTEM
1022
1023 /* The class of this X application.  */
1024 #define EMACS_CLASS "Emacs"
1025
1026 enum
1027 {
1028   /* Values used as a bit mask, BOTH == WIDTH | HEIGHT.  */
1029   FULLSCREEN_NONE       = 0,
1030   FULLSCREEN_WIDTH      = 1,
1031   FULLSCREEN_HEIGHT     = 2,
1032   FULLSCREEN_BOTH       = 3,
1033   FULLSCREEN_WAIT       = 4,
1034 };
1035
1036
1037 /* These are in xterm.c, w32term.c, etc.  */
1038
1039 extern void x_set_scroll_bar_default_width P_ ((struct frame *));
1040 extern void x_set_offset P_ ((struct frame *, int, int, int));
1041 extern void x_wm_set_icon_position P_ ((struct frame *, int, int));
1042
1043 extern Lisp_Object x_new_font P_ ((struct frame *, char *));
1044 extern Lisp_Object x_new_fontset P_ ((struct frame *, char *));
1045
1046
1047 /* These are in frame.c  */
1048
1049 extern Lisp_Object Vx_resource_name;
1050 extern Lisp_Object Vx_resource_class;
1051
1052
1053 extern Lisp_Object Qface_set_after_frame_default;
1054
1055 extern void x_fullscreen_adjust P_ ((struct frame *f, int *, int *,
1056                                      int *, int *));
1057
1058 extern void x_set_frame_parameters P_ ((struct frame *, Lisp_Object));
1059 extern void x_report_frame_params P_ ((struct frame *, Lisp_Object *));
1060
1061 extern void x_set_fullscreen P_ ((struct frame *, Lisp_Object, Lisp_Object));
1062 extern void x_set_line_spacing P_ ((struct frame *, Lisp_Object, Lisp_Object));
1063 extern void x_set_screen_gamma P_ ((struct frame *, Lisp_Object, Lisp_Object));
1064 extern void x_set_font P_ ((struct frame *, Lisp_Object, Lisp_Object));
1065 extern void x_set_fringe_width P_ ((struct frame *, Lisp_Object, Lisp_Object));
1066 extern void x_set_border_width P_ ((struct frame *, Lisp_Object, Lisp_Object));
1067 extern void x_set_internal_border_width P_ ((struct frame *, Lisp_Object,
1068                                              Lisp_Object));
1069 extern void x_set_visibility P_ ((struct frame *, Lisp_Object, Lisp_Object));
1070 extern void x_set_autoraise P_ ((struct frame *, Lisp_Object, Lisp_Object));
1071 extern void x_set_autolower P_ ((struct frame *, Lisp_Object, Lisp_Object));
1072 extern void x_set_unsplittable P_ ((struct frame *, Lisp_Object, Lisp_Object));
1073 extern void x_set_vertical_scroll_bars P_ ((struct frame *, Lisp_Object,
1074                                             Lisp_Object));
1075 extern void x_set_scroll_bar_width P_ ((struct frame *, Lisp_Object,
1076                                         Lisp_Object));
1077
1078 extern Lisp_Object x_icon_type P_ ((struct frame *));
1079
1080 extern int x_figure_window_size P_ ((struct frame *, Lisp_Object, int));
1081
1082
1083 extern void validate_x_resource_name P_ ((void));
1084
1085 #endif /* HAVE_WINDOW_SYSTEM */
1086
1087 #endif /* not EMACS_FRAME_H */
1088
1089 /* arch-tag: 0df048ee-e6bf-4f48-bd56-e3cd055dd8c4
1090    (do not change this comment) */