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, 2009, 2010 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   FULLSCREEN_NONE,
  79   FULLSCREEN_WIDTH     = 0x001,
  80   FULLSCREEN_HEIGHT    = 0x002,
  81   FULLSCREEN_BOTH      = 0x003,
  82   FULLSCREEN_MAXIMIZED = 0x013,
  83   FULLSCREEN_WAIT      = 0x100
  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   /* Set to non-zero in change_frame_size when size of frame changed
 220      Clear the frame in clear_garbaged_frames if set.  */
 221   unsigned resized_p : 1;
 222
 223   /* Set to non-zero in when we want for force a flush_display in
 224      update_frame, usually after resizing the frame.  */
 225   unsigned force_flush_display_p : 1;
 226
 227   /* Set to non-zero if the default face for the frame has been
 228      realized.  Reset to zero whenever the default face changes.
 229      Used to see the difference between a font change and face change.  */
 230   unsigned default_face_done_p : 1;
 231
 232   /* Set to non-zero if this frame has already been hscrolled during
 233      current redisplay.  */
 234   unsigned already_hscrolled_p : 1;
 235
 236   /* Set to non-zero when current redisplay has updated frame.  */
 237   unsigned updated_p : 1;
 238
 239   /* Set to non-zero to minimize tool-bar height even when
 240      auto-resize-tool-bar is set to grow-only.  */
 241   unsigned minimize_tool_bar_window_p : 1;
 242
 243 #if defined (USE_GTK) || defined (HAVE_NS)
 244   /* Nonzero means using a tool bar that comes from the toolkit.  */
 245   int external_tool_bar;
 246 #endif
 247
 248   /* Margin at the top of the frame.  Used to display the tool-bar.  */
 249   int tool_bar_lines;
 250
 251   int n_tool_bar_rows;
 252   int n_tool_bar_items;
 253
 254   /* A buffer for decode_mode_line. */
 255   char *decode_mode_spec_buffer;
 256
 257   /* See do_line_insertion_deletion_costs for info on these arrays. */
 258   /* Cost of inserting 1 line on this frame */
 259   int *insert_line_cost;
 260   /* Cost of deleting 1 line on this frame */
 261   int *delete_line_cost;
 262   /* Cost of inserting n lines on this frame */
 263   int *insert_n_lines_cost;
 264   /* Cost of deleting n lines on this frame */
 265   int *delete_n_lines_cost;
 266
 267   /* Size of this frame, excluding fringes, scroll bars etc.,
 268      in units of canonical characters.  */
 269   EMACS_INT text_lines, text_cols;
 270
 271   /* Total size of this frame (i.e. its native window), in units of
 272      canonical characters.  */
 273   EMACS_INT total_lines, total_cols;
 274
 275   /* New text height and width for pending size change.
 276      0 if no change pending.  */
 277   int new_text_lines, new_text_cols;
 278
 279   /* Pixel position of the frame window (x and y offsets in root window).  */
 280   int left_pos, top_pos;
 281
 282   /* Size of the frame window in pixels.  */
 283   int pixel_height, pixel_width;
 284
 285   /* Dots per inch of the screen the frame is on.  */
 286   double resx, resy;
 287
 288   /* These many pixels are the difference between the outer window (i.e. the
 289      left and top of the window manager decoration) and FRAME_X_WINDOW. */
 290   int x_pixels_diff, y_pixels_diff;
 291
 292   /* This is the gravity value for the specified window position.  */
 293   int win_gravity;
 294
 295   /* The geometry flags for this window.  */
 296   int size_hint_flags;
 297
 298   /* Border width of the frame window as known by the (X) window system.  */
 299   int border_width;
 300
 301   /* Width of the internal border.  This is a line of background color
 302      just inside the window's border.  When the frame is selected,
 303      a highlighting is displayed inside the internal border.  */
 304   int internal_border_width;
 305
 306   /* Canonical X unit.  Width of default font, in pixels.  */
 307   int column_width;
 308
 309   /* Widht of space glyph of default font, in pixels.  */
 310   int space_width;
 311
 312   /* Canonical Y unit.  Height of a line, in pixels.  */
 313   int line_height;
 314
 315   /* The output method says how the contents of this frame are
 316      displayed.  It could be using termcap, or using an X window.
 317      This must be the same as the terminal->type. */
 318   enum output_method output_method;
 319
 320   /* The terminal device that this frame uses.  If this is NULL, then
 321      the frame has been deleted. */
 322   struct terminal *terminal;
 323
 324   /* Device-dependent, frame-local auxiliary data used for displaying
 325      the contents.  When the frame is deleted, this data is deleted as
 326      well. */
 327   union output_data
 328   {
 329     struct tty_output *tty;     /* termchar.h */
 330     struct x_output *x;         /* xterm.h */
 331     struct w32_output *w32;     /* w32term.h */
 332     struct ns_output *ns;       /* nsterm.h */
 333     EMACS_INT nothing;
 334   }
 335   output_data;
 336
 337   /* List of font-drivers available on the frame. */
 338   struct font_driver_list *font_driver_list;
 339   /* List of data specific to font-driver and frame, but common to
 340      faces.  */
 341   struct font_data_list *font_data_list;
 342
 343   /* Total width of fringes reserved for drawing truncation bitmaps,
 344      continuation bitmaps and alike.  The width is in canonical char
 345      units of the frame.  This must currently be the case because window
 346      sizes aren't pixel values.  If it weren't the case, we wouldn't be
 347      able to split windows horizontally nicely.  */
 348   int fringe_cols;
 349
 350   /* The extra width (in pixels) currently allotted for fringes.  */
 351   int left_fringe_width, right_fringe_width;
 352
 353   /* See FULLSCREEN_ enum below */
 354   enum fullscreen_type want_fullscreen;
 355
 356   /* Number of lines of menu bar.  */
 357   int menu_bar_lines;
 358
 359 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \
 360     || defined (HAVE_NS) || defined (USE_GTK)
 361   /* Nonzero means using a menu bar that comes from the X toolkit.  */
 362   unsigned int external_menu_bar : 1;
 363 #endif
 364
 365   /* Nonzero if last attempt at redisplay on this frame was preempted.  */
 366   unsigned char display_preempted : 1;
 367
 368   /* visible is nonzero if the frame is currently displayed; we check
 369      it to see if we should bother updating the frame's contents.
 370      DON'T SET IT DIRECTLY; instead, use FRAME_SET_VISIBLE.
 371
 372      Note that, since invisible frames aren't updated, whenever a
 373      frame becomes visible again, it must be marked as garbaged.  The
 374      FRAME_SAMPLE_VISIBILITY macro takes care of this.
 375
 376      On ttys and on Windows NT/9X, to avoid wasting effort updating
 377      visible frames that are actually completely obscured by other
 378      windows on the display, we bend the meaning of visible slightly:
 379      if greater than 1, then the frame is obscured - we still consider
 380      it to be "visible" as seen from lisp, but we don't bother
 381      updating it.  We must take care to garbage the frame when it
 382      ceaces to be obscured though.
 383
 384      iconified is nonzero if the frame is currently iconified.
 385
 386      Asynchronous input handlers should NOT change these directly;
 387      instead, they should change async_visible or async_iconified, and
 388      let the FRAME_SAMPLE_VISIBILITY macro set visible and iconified
 389      at the next redisplay.
 390
 391      These should probably be considered read-only by everyone except
 392      FRAME_SAMPLE_VISIBILITY.
 393
 394      These two are mutually exclusive.  They might both be zero, if the
 395      frame has been made invisible without an icon.  */
 396   unsigned char visible : 2;
 397   unsigned char iconified : 1;
 398
 399   /* Let's not use bitfields for volatile variables.  */
 400
 401   /* Asynchronous input handlers change these, and
 402      FRAME_SAMPLE_VISIBILITY copies them into visible and iconified.
 403      See FRAME_SAMPLE_VISIBILITY, below.  */
 404   volatile char async_visible, async_iconified;
 405
 406   /* Nonzero if this frame should be redrawn.  */
 407   volatile char garbaged;
 408
 409   /* True if frame actually has a minibuffer window on it.
 410      0 if using a minibuffer window that isn't on this frame.  */
 411   unsigned char has_minibuffer : 1;
 412
 413   /* 0 means, if this frame has just one window,
 414      show no modeline for that window.  */
 415   unsigned char wants_modeline : 1;
 416
 417   /* Non-zero if the hardware device this frame is displaying on can
 418      support scroll bars.  */
 419   char can_have_scroll_bars;
 420
 421   /* Non-0 means raise this frame to the top of the heap when selected.  */
 422   unsigned char auto_raise : 1;
 423
 424   /* Non-0 means lower this frame to the bottom of the stack when left.  */
 425   unsigned char auto_lower : 1;
 426
 427   /* True if frame's root window can't be split.  */
 428   unsigned char no_split : 1;
 429
 430   /* If this is set, then Emacs won't change the frame name to indicate
 431      the current buffer, etcetera.  If the user explicitly sets the frame
 432      name, this gets set.  If the user sets the name to Qnil, this is
 433      cleared.  */
 434   unsigned char explicit_name : 1;
 435
 436   /* Nonzero if size of some window on this frame has changed.  */
 437   unsigned char window_sizes_changed : 1;
 438
 439   /* Nonzero if the mouse has moved on this display device
 440      since the last time we checked.  */
 441   unsigned char mouse_moved :1;
 442
 443   /* Nonzero means that the pointer is invisible. */
 444   unsigned char pointer_invisible :1;
 445
 446   /* If can_have_scroll_bars is non-zero, this is non-zero if we should
 447      actually display them on this frame.  */
 448   enum vertical_scroll_bar_type vertical_scroll_bar_type;
 449
 450   /* What kind of text cursor should we draw in the future?
 451      This should always be filled_box_cursor or bar_cursor.  */
 452   enum text_cursor_kinds desired_cursor;
 453
 454   /* Width of bar cursor (if we are using that).  */
 455   int cursor_width;
 456
 457   /* What kind of text cursor should we draw when the cursor blinks off?
 458      This can be filled_box_cursor or bar_cursor or no_cursor.  */
 459   enum text_cursor_kinds blink_off_cursor;
 460
 461   /* Width of bar cursor (if we are using that) for blink-off state.  */
 462   int blink_off_cursor_width;
 463
 464   /* Storage for messages to this frame. */
 465   char *message_buf;
 466
 467   /* Nonnegative if current redisplay should not do scroll computation
 468      for lines beyond a certain vpos.  This is the vpos.  */
 469   int scroll_bottom_vpos;
 470
 471   /* Configured width of the scroll bar, in pixels and in characters.
 472      config_scroll_bar_cols tracks config_scroll_bar_width if the
 473      latter is positive; a zero value in config_scroll_bar_width means
 474      to compute the actual width on the fly, using config_scroll_bar_cols
 475      and the current font width.  */
 476   int config_scroll_bar_width;
 477   int config_scroll_bar_cols;
 478
 479   /* The size of the extra width currently allotted for vertical
 480      scroll bars in this frame, in pixels.  */
 481   int scroll_bar_actual_width;
 482
 483   /* The baud rate that was used to calculate costs for this frame.  */
 484   int cost_calculation_baud_rate;
 485
 486   /* frame opacity
 487      alpha[0]: alpha transparency of the active frame
 488      alpha[1]: alpha transparency of inactive frames
 489      Negative values mean not to change alpha.  */
 490   double alpha[2];
 491
 492   /* Exponent for gamma correction of colors.  1/(VIEWING_GAMMA *
 493      SCREEN_GAMMA) where viewing_gamma is 0.4545 and SCREEN_GAMMA is a
 494      frame parameter.  0 means don't do gamma correction.  */
 495   double gamma;
 496
 497   /* Additional space to put between text lines on this frame.  */
 498   int extra_line_spacing;
 499
 500   /* All display backends seem to need these two pixel values. */
 501   unsigned long background_pixel;
 502   unsigned long foreground_pixel;
 503 };
 504
 505 #define FRAME_KBOARD(f) ((f)->terminal->kboard)
 506
 507 /* Return a pointer to the image cache of frame F.  */
 508 #define FRAME_IMAGE_CACHE(F) ((F)->terminal->image_cache)
 509
 510 typedef struct frame *FRAME_PTR;
 511
 512 #define XFRAME(p) (eassert (FRAMEP(p)),(struct frame *) XPNTR (p))
 513 #define XSETFRAME(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_FRAME))
 514
 515 /* Given a window, return its frame as a Lisp_Object.  */
 516 #define WINDOW_FRAME(w) (w)->frame
 517
 518 /* Test a frame for particular kinds of display methods.  */
 519 #define FRAME_INITIAL_P(f) ((f)->output_method == output_initial)
 520 #define FRAME_TERMCAP_P(f) ((f)->output_method == output_termcap)
 521 #define FRAME_X_P(f) ((f)->output_method == output_x_window)
 522 #define FRAME_W32_P(f) ((f)->output_method == output_w32)
 523 #define FRAME_MSDOS_P(f) ((f)->output_method == output_msdos_raw)
 524 #define FRAME_MAC_P(f) ((f)->output_method == output_mac)
 525 #define FRAME_NS_P(f) ((f)->output_method == output_ns)
 526
 527 /* FRAME_WINDOW_P tests whether the frame is a window, and is
 528    defined to be the predicate for the window system being used.  */
 529
 530 #ifdef HAVE_X_WINDOWS
 531 #define FRAME_WINDOW_P(f) FRAME_X_P (f)
 532 #endif
 533 #ifdef HAVE_NTGUI
 534 #define FRAME_WINDOW_P(f) FRAME_W32_P (f)
 535 #endif
 536 #ifdef HAVE_NS
 537 #define FRAME_WINDOW_P(f) FRAME_NS_P(f)
 538 #endif
 539 #ifndef FRAME_WINDOW_P
 540 #define FRAME_WINDOW_P(f) (0)
 541 #endif
 542
 543 /* Nonzero if frame F is still alive (not deleted).  */
 544 #define FRAME_LIVE_P(f) ((f)->terminal != 0)
 545
 546 /* Nonzero if frame F is a minibuffer-only frame.  */
 547 #define FRAME_MINIBUF_ONLY_P(f) \
 548   EQ (FRAME_ROOT_WINDOW (f), FRAME_MINIBUF_WINDOW (f))
 549
 550 /* Nonzero if frame F contains a minibuffer window.
 551    (If this is 0, F must use some other minibuffer window.)  */
 552 #define FRAME_HAS_MINIBUF_P(f) ((f)->has_minibuffer)
 553
 554 /* Pixel height of frame F, including non-toolkit menu bar and
 555    non-toolkit tool bar lines.  */
 556 #define FRAME_PIXEL_HEIGHT(f) ((f)->pixel_height)
 557
 558 /* Pixel width of frame F.  */
 559 #define FRAME_PIXEL_WIDTH(f) ((f)->pixel_width)
 560
 561 /* Height of frame F, measured in canonical lines, including
 562    non-toolkit menu bar and non-toolkit tool bar lines.  */
 563 #define FRAME_LINES(f) (f)->text_lines
 564
 565 /* Width of frame F, measured in canonical character columns,
 566    not including scroll bars if any.  */
 567 #define FRAME_COLS(f) (f)->text_cols
 568
 569 /* Number of lines of frame F used for menu bar.
 570    This is relevant on terminal frames and on
 571    X Windows when not using the X toolkit.
 572    These lines are counted in FRAME_LINES.  */
 573 #define FRAME_MENU_BAR_LINES(f) (f)->menu_bar_lines
 574
 575 /* Nonzero if this frame should display a tool bar
 576    in a way that does not use any text lines.  */
 577 #if defined (USE_GTK) || defined (HAVE_NS)
 578 #define FRAME_EXTERNAL_TOOL_BAR(f) (f)->external_tool_bar
 579 #else
 580 #define FRAME_EXTERNAL_TOOL_BAR(f) 0
 581 #endif
 582
 583 /* Number of lines of frame F used for the tool-bar.  */
 584
 585 #define FRAME_TOOL_BAR_LINES(f) (f)->tool_bar_lines
 586
 587
 588 /* Lines above the top-most window in frame F.  */
 589
 590 #define FRAME_TOP_MARGIN(F) \
 591      (FRAME_MENU_BAR_LINES (F) + FRAME_TOOL_BAR_LINES (F))
 592
 593 /* Pixel height of the top margin above.  */
 594
 595 #define FRAME_TOP_MARGIN_HEIGHT(f) \
 596   (FRAME_TOP_MARGIN (f) * FRAME_LINE_HEIGHT (f))
 597
 598 /* Nonzero if this frame should display a menu bar
 599    in a way that does not use any text lines.  */
 600 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \
 601      || defined (HAVE_NS) || defined (USE_GTK)
 602 #define FRAME_EXTERNAL_MENU_BAR(f) (f)->external_menu_bar
 603 #else
 604 #define FRAME_EXTERNAL_MENU_BAR(f) 0
 605 #endif
 606 #define FRAME_VISIBLE_P(f) ((f)->visible != 0)
 607
 608 /* Nonzero if frame F is currently visible but hidden.  */
 609 #define FRAME_OBSCURED_P(f) ((f)->visible > 1)
 610
 611 /* Nonzero if frame F is currently iconified.  */
 612 #define FRAME_ICONIFIED_P(f) (f)->iconified
 613
 614 #define FRAME_SET_VISIBLE(f,p) \
 615   ((f)->async_visible = (p), FRAME_SAMPLE_VISIBILITY (f))
 616 #define SET_FRAME_GARBAGED(f) (frame_garbaged = 1, f->garbaged = 1)
 617 #define FRAME_GARBAGED_P(f) (f)->garbaged
 618
 619 /* Nonzero means do not allow splitting this frame's window.  */
 620 #define FRAME_NO_SPLIT_P(f) (f)->no_split
 621
 622 /* Not really implemented.  */
 623 #define FRAME_WANTS_MODELINE_P(f) (f)->wants_modeline
 624
 625 /* Nonzero if a size change has been requested for frame F
 626    but not yet really put into effect.  This can be true temporarily
 627    when an X event comes in at a bad time.  */
 628 #define FRAME_WINDOW_SIZES_CHANGED(f) (f)->window_sizes_changed
 629
 630 /* The minibuffer window of frame F, if it has one; otherwise nil.  */
 631 #define FRAME_MINIBUF_WINDOW(f) (f)->minibuffer_window
 632
 633 /* The root window of the window tree of frame F.  */
 634 #define FRAME_ROOT_WINDOW(f) (f)->root_window
 635
 636 /* The currently selected window of the window tree of frame F.  */
 637 #define FRAME_SELECTED_WINDOW(f) (f)->selected_window
 638
 639 #define FRAME_INSERT_COST(f) (f)->insert_line_cost
 640 #define FRAME_DELETE_COST(f) (f)->delete_line_cost
 641 #define FRAME_INSERTN_COST(f) (f)->insert_n_lines_cost
 642 #define FRAME_DELETEN_COST(f) (f)->delete_n_lines_cost
 643 #define FRAME_MESSAGE_BUF(f) (f)->message_buf
 644 #define FRAME_SCROLL_BOTTOM_VPOS(f) (f)->scroll_bottom_vpos
 645 #define FRAME_FOCUS_FRAME(f) (f)->focus_frame
 646
 647 /* Nonzero if frame F supports scroll bars.
 648    If this is zero, then it is impossible to enable scroll bars
 649    on frame F.  */
 650 #define FRAME_CAN_HAVE_SCROLL_BARS(f) ((f)->can_have_scroll_bars)
 651
 652 /* This frame slot says whether scroll bars are currently enabled for frame F,
 653    and which side they are on.  */
 654 #define FRAME_VERTICAL_SCROLL_BAR_TYPE(f) ((f)->vertical_scroll_bar_type)
 655 #define FRAME_HAS_VERTICAL_SCROLL_BARS(f) \
 656      ((f)->vertical_scroll_bar_type != vertical_scroll_bar_none)
 657 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT(f) \
 658      ((f)->vertical_scroll_bar_type == vertical_scroll_bar_left)
 659 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT(f) \
 660      ((f)->vertical_scroll_bar_type == vertical_scroll_bar_right)
 661
 662 /* Width that a scroll bar in frame F should have, if there is one.
 663    Measured in pixels.
 664    If scroll bars are turned off, this is still nonzero.  */
 665 #define FRAME_CONFIG_SCROLL_BAR_WIDTH(f) ((f)->config_scroll_bar_width)
 666
 667 /* Width that a scroll bar in frame F should have, if there is one.
 668    Measured in columns (characters).
 669    If scroll bars are turned off, this is still nonzero.  */
 670 #define FRAME_CONFIG_SCROLL_BAR_COLS(f) ((f)->config_scroll_bar_cols)
 671
 672 /* Width of a scroll bar in frame F, measured in columns (characters),
 673    but only if scroll bars are on the left.  If scroll bars are on
 674    the right in this frame, or there are no scroll bars, value is 0.  */
 675
 676 #define FRAME_LEFT_SCROLL_BAR_COLS(f)                   \
 677      (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)        \
 678       ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                \
 679       : 0)
 680
 681 /* Width of a left scroll bar in frame F, measured in pixels */
 682
 683 #define FRAME_LEFT_SCROLL_BAR_AREA_WIDTH(f)                                     \
 684   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)                           \
 685    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 686    : 0)
 687
 688 /* Width of a scroll bar in frame F, measured in columns (characters),
 689    but only if scroll bars are on the right.  If scroll bars are on
 690    the left in this frame, or there are no scroll bars, value is 0.  */
 691
 692 #define FRAME_RIGHT_SCROLL_BAR_COLS(f)                  \
 693      (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)       \
 694       ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                \
 695       : 0)
 696
 697 /* Width of a right scroll bar area in frame F, measured in pixels */
 698
 699 #define FRAME_RIGHT_SCROLL_BAR_AREA_WIDTH(f)                                    \
 700   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)                          \
 701    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 702    : 0)
 703
 704 /* Actual width of a scroll bar in frame F, measured in columns.  */
 705
 706 #define FRAME_SCROLL_BAR_COLS(f)                        \
 707      (FRAME_HAS_VERTICAL_SCROLL_BARS (f)                \
 708       ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                \
 709       : 0)
 710
 711 /* Actual width of a scroll bar area in frame F, measured in pixels.  */
 712
 713 #define FRAME_SCROLL_BAR_AREA_WIDTH(f)                                  \
 714   (FRAME_HAS_VERTICAL_SCROLL_BARS (f)                                   \
 715    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 716    : 0)
 717
 718 /* Total width of frame F, in columns (characters),
 719    including the width used by scroll bars if any.  */
 720
 721 #define FRAME_TOTAL_COLS(f) ((f)->total_cols)
 722
 723 /* Set the width of frame F to VAL.
 724    VAL is the width of a full-frame window,
 725    not including scroll bars and fringes.  */
 726
 727 #define SET_FRAME_COLS(f, val)                                          \
 728      (FRAME_COLS (f) = (val),                                           \
 729       (f)->total_cols = FRAME_TOTAL_COLS_ARG (f, FRAME_COLS (f)))
 730
 731 /* Given a value WIDTH for frame F's nominal width,
 732    return the value that FRAME_TOTAL_COLS should have.  */
 733
 734 #define FRAME_TOTAL_COLS_ARG(f, width)          \
 735      ((width)                                   \
 736       + FRAME_SCROLL_BAR_COLS (f)               \
 737       + FRAME_FRINGE_COLS (f))
 738
 739 /* Maximum + 1 legitimate value for FRAME_CURSOR_X.  */
 740
 741 #define FRAME_CURSOR_X_LIMIT(f) \
 742      (FRAME_COLS (f) + FRAME_LEFT_SCROLL_BAR_COLS (f))
 743
 744 /* Nonzero if frame F has scroll bars.  */
 745
 746 #define FRAME_SCROLL_BARS(f) ((f)->scroll_bars)
 747
 748 #define FRAME_CONDEMNED_SCROLL_BARS(f) ((f)->condemned_scroll_bars)
 749 #define FRAME_MENU_BAR_ITEMS(f) ((f)->menu_bar_items)
 750 #define FRAME_COST_BAUD_RATE(f) ((f)->cost_calculation_baud_rate)
 751
 752 #define FRAME_DESIRED_CURSOR(f) ((f)->desired_cursor)
 753 #define FRAME_BLINK_OFF_CURSOR(f) ((f)->blink_off_cursor)
 754 #define FRAME_CURSOR_WIDTH(f) ((f)->cursor_width)
 755 #define FRAME_BLINK_OFF_CURSOR_WIDTH(f) ((f)->blink_off_cursor_width)
 756
 757 /* Return a pointer to the face cache of frame F.  */
 758
 759 #define FRAME_FACE_CACHE(F)     (F)->face_cache
 760
 761 /* Return the size of message_buf of the frame F.  We multiply the
 762    width of the frame by 4 because multi-byte form may require at most
 763    4-byte for a character.  */
 764
 765 #define FRAME_MESSAGE_BUF_SIZE(f) (((int) FRAME_COLS (f)) * 4)
 766
 767 /* Emacs's redisplay code could become confused if a frame's
 768    visibility changes at arbitrary times.  For example, if a frame is
 769    visible while the desired glyphs are being built, but becomes
 770    invisible before they are updated, then some rows of the
 771    desired_glyphs will be left marked as enabled after redisplay is
 772    complete, which should never happen.  The next time the frame
 773    becomes visible, redisplay will probably barf.
 774
 775    Currently, there are no similar situations involving iconified, but
 776    the principle is the same.
 777
 778    So instead of having asynchronous input handlers directly set and
 779    clear the frame's visibility and iconification flags, they just set
 780    the async_visible and async_iconified flags; the redisplay code
 781    calls the FRAME_SAMPLE_VISIBILITY macro before doing any redisplay,
 782    which sets visible and iconified from their asynchronous
 783    counterparts.
 784
 785    Synchronous code must use the FRAME_SET_VISIBLE macro.
 786
 787    Also, if a frame used to be invisible, but has just become visible,
 788    it must be marked as garbaged, since redisplay hasn't been keeping
 789    up its contents.
 790
 791    Note that a tty frame is visible if and only if it is the topmost
 792    frame. */
 793
 794 #define FRAME_SAMPLE_VISIBILITY(f) \
 795   (((f)->async_visible && (f)->visible != (f)->async_visible) ? \
 796    SET_FRAME_GARBAGED (f) : 0, \
 797    (f)->visible = (f)->async_visible, \
 798    (f)->iconified = (f)->async_iconified)
 799
 800 #define CHECK_FRAME(x) \
 801   CHECK_TYPE (FRAMEP (x), Qframep, x)
 802
 803 #define CHECK_LIVE_FRAME(x) \
 804   CHECK_TYPE (FRAMEP (x) && FRAME_LIVE_P (XFRAME (x)), Qframe_live_p, x)
 805
 806 /* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
 807    `for' loop which iterates over the elements of Vframe_list.  The
 808    loop will set FRAME_VAR, a Lisp_Object, to each frame in
 809    Vframe_list in succession and execute the statement.  LIST_VAR
 810    should be a Lisp_Object too; it is used to iterate through the
 811    Vframe_list.
 812
 813    This macro is a holdover from a time when multiple frames weren't always
 814    supported.  An alternate definition of the macro would expand to
 815    something which executes the statement once.  */
 816
 817 #define FOR_EACH_FRAME(list_var, frame_var)                     \
 818   for ((list_var) = Vframe_list;                                \
 819        (CONSP (list_var)                                        \
 820         && (frame_var = XCAR (list_var), 1));           \
 821        list_var = XCDR (list_var))
 822
 823
 824 extern Lisp_Object Qframep, Qframe_live_p;
 825 extern Lisp_Object Qtty, Qtty_type;
 826 extern Lisp_Object Qterminal, Qterminal_live_p;
 827 extern Lisp_Object Qnoelisp;
 828
 829 extern struct frame *last_nonminibuf_frame;
 830
 831 extern struct frame *make_initial_frame P_ ((void));
 832 extern struct frame *make_terminal_frame P_ ((struct terminal *));
 833 extern struct frame *make_frame P_ ((int));
 834 #ifdef HAVE_WINDOW_SYSTEM
 835 extern struct frame *make_minibuffer_frame P_ ((void));
 836 extern struct frame *make_frame_without_minibuffer P_ ((Lisp_Object,
 837                                                         struct kboard *,
 838                                                         Lisp_Object));
 839 #endif /* HAVE_WINDOW_SYSTEM */
 840 extern int other_visible_frames P_ ((struct frame *));
 841 extern void frame_make_pointer_invisible P_ ((void));
 842 extern void frame_make_pointer_visible P_ ((void));
 843 extern Lisp_Object delete_frame P_ ((Lisp_Object, Lisp_Object));
 844
 845 extern Lisp_Object Vframe_list;
 846 extern Lisp_Object Vdefault_frame_alist;
 847
 848 extern Lisp_Object Vterminal_frame;
 849
 850 extern Lisp_Object Vmouse_highlight;
 851 \f
 852 /* The currently selected frame.  */
 853
 854 extern Lisp_Object selected_frame;
 855
 856 /* Value is a pointer to the selected frame.  If the selected frame
 857    isn't live, abort.  */
 858
 859 #define SELECTED_FRAME()                                \
 860      ((FRAMEP (selected_frame)                          \
 861        && FRAME_LIVE_P (XFRAME (selected_frame)))       \
 862       ? XFRAME (selected_frame)                         \
 863       : (abort (), (struct frame *) 0))
 864
 865 \f
 866 /***********************************************************************
 867                         Display-related Macros
 868  ***********************************************************************/
 869
 870 /* Canonical y-unit on frame F.
 871    This value currently equals the line height of the frame (which is
 872    the height of the default font of F).  */
 873
 874 #define FRAME_LINE_HEIGHT(F) ((F)->line_height)
 875
 876 /* Canonical x-unit on frame F.
 877    This value currently equals the average width of the default font of F.  */
 878
 879 #define FRAME_COLUMN_WIDTH(F) ((F)->column_width)
 880
 881 /* Space glyph width of the default font of frame F.  */
 882
 883 #define FRAME_SPACE_WIDTH(F) ((F)->space_width)
 884
 885
 886 /* Pixel width of areas used to display truncation marks, continuation
 887    marks, overlay arrows.  This is 0 for terminal frames.  */
 888
 889 #ifdef HAVE_WINDOW_SYSTEM
 890
 891 /* Total width of fringes reserved for drawing truncation bitmaps,
 892    continuation bitmaps and alike.  The width is in canonical char
 893    units of the frame.  This must currently be the case because window
 894    sizes aren't pixel values.  If it weren't the case, we wouldn't be
 895    able to split windows horizontally nicely.  */
 896
 897 #define FRAME_FRINGE_COLS(F) ((F)->fringe_cols)
 898
 899 /* Pixel-width of the left and right fringe.  */
 900
 901 #define FRAME_LEFT_FRINGE_WIDTH(F) ((F)->left_fringe_width)
 902 #define FRAME_RIGHT_FRINGE_WIDTH(F) ((F)->right_fringe_width)
 903
 904 /* Total width of fringes in pixels.  */
 905
 906 #define FRAME_TOTAL_FRINGE_WIDTH(F) \
 907   (FRAME_LEFT_FRINGE_WIDTH (F) + FRAME_RIGHT_FRINGE_WIDTH (F))
 908
 909
 910 /* Pixel-width of internal border lines */
 911
 912 #define FRAME_INTERNAL_BORDER_WIDTH(F) ((F)->internal_border_width)
 913
 914 #else /* not HAVE_WINDOW_SYSTEM */
 915
 916 #define FRAME_FRINGE_COLS(F)    0
 917 #define FRAME_TOTAL_FRINGE_WIDTH(F)     0
 918 #define FRAME_LEFT_FRINGE_WIDTH(F)  0
 919 #define FRAME_RIGHT_FRINGE_WIDTH(F) 0
 920 #define FRAME_INTERNAL_BORDER_WIDTH(F) 0
 921
 922 #endif /* not HAVE_WINDOW_SYSTEM */
 923
 924
 925
 926 \f
 927 /***********************************************************************
 928             Conversion between canonical units and pixels
 929  ***********************************************************************/
 930
 931 /* Canonical x-values are fractions of FRAME_COLUMN_WIDTH, canonical
 932    y-unit are fractions of FRAME_LINE_HEIGHT of a frame.  Both are
 933    represented as Lisp numbers, i.e. integers or floats.  */
 934
 935 /* Convert canonical value X to pixels.  F is the frame whose
 936    canonical char width is to be used.  X must be a Lisp integer or
 937    float.  Value is a C integer.  */
 938
 939 #define FRAME_PIXEL_X_FROM_CANON_X(F, X)                \
 940      (INTEGERP (X)                                      \
 941       ? XINT (X) * FRAME_COLUMN_WIDTH (F)               \
 942       : (int) (XFLOAT_DATA (X) * FRAME_COLUMN_WIDTH (F)))
 943
 944 /* Convert canonical value Y to pixels.  F is the frame whose
 945    canonical character height is to be used.  X must be a Lisp integer
 946    or float.  Value is a C integer.  */
 947
 948 #define FRAME_PIXEL_Y_FROM_CANON_Y(F, Y)                \
 949      (INTEGERP (Y)                                      \
 950       ? XINT (Y) * FRAME_LINE_HEIGHT (F)                \
 951       : (int) (XFLOAT_DATA (Y) * FRAME_LINE_HEIGHT (F)))
 952
 953 /* Convert pixel-value X to canonical units.  F is the frame whose
 954    canonical character width is to be used.  X is a C integer.  Result
 955    is a Lisp float if X is not a multiple of the canon width,
 956    otherwise it's a Lisp integer.  */
 957
 958 #define FRAME_CANON_X_FROM_PIXEL_X(F, X)                        \
 959      ((X) % FRAME_COLUMN_WIDTH (F) != 0                         \
 960       ? make_float ((double) (X) / FRAME_COLUMN_WIDTH (F))      \
 961       : make_number ((X) / FRAME_COLUMN_WIDTH (F)))
 962
 963 /* Convert pixel-value Y to canonical units.  F is the frame whose
 964    canonical character height is to be used.  Y is a C integer.
 965    Result is a Lisp float if Y is not a multiple of the canon width,
 966    otherwise it's a Lisp integer.  */
 967
 968 #define FRAME_CANON_Y_FROM_PIXEL_Y(F, Y)                        \
 969      ((Y) % FRAME_LINE_HEIGHT (F)                               \
 970       ? make_float ((double) (Y) / FRAME_LINE_HEIGHT (F))       \
 971       : make_number ((Y) / FRAME_LINE_HEIGHT (F)))
 972
 973
 974 \f
 975 /* Manipulating pixel sizes and character sizes.
 976    Knowledge of which factors affect the overall size of the window should
 977    be hidden in these macros, if that's possible.
 978
 979    Return the upper/left pixel position of the character cell on frame F
 980    at ROW/COL.  */
 981
 982 #define FRAME_LINE_TO_PIXEL_Y(f, row) \
 983   (((row) < FRAME_TOP_MARGIN (f) ? 0 : FRAME_INTERNAL_BORDER_WIDTH (f)) \
 984    + (row) * FRAME_LINE_HEIGHT (f))
 985
 986 #define FRAME_COL_TO_PIXEL_X(f, col) \
 987   (FRAME_INTERNAL_BORDER_WIDTH (f) \
 988    + (col) * FRAME_COLUMN_WIDTH (f))
 989
 990 /* Return the pixel width/height of frame F if it has
 991    COLS columns/LINES rows.  */
 992
 993 #define FRAME_TEXT_COLS_TO_PIXEL_WIDTH(f, cols) \
 994   (FRAME_COL_TO_PIXEL_X (f, cols) \
 995    + (f)->scroll_bar_actual_width \
 996    + FRAME_TOTAL_FRINGE_WIDTH (f)      \
 997    + FRAME_INTERNAL_BORDER_WIDTH (f))
 998
 999 #define FRAME_TEXT_LINES_TO_PIXEL_HEIGHT(f, lines) \
1000   ((lines) * FRAME_LINE_HEIGHT (f) \
1001    + 2 * FRAME_INTERNAL_BORDER_WIDTH (f))
1002
1003
1004 /* Return the row/column (zero-based) of the character cell containing
1005    the pixel on FRAME at Y/X.  */
1006
1007 #define FRAME_PIXEL_Y_TO_LINE(f, y) \
1008   (((y) < FRAME_TOP_MARGIN_HEIGHT (f)   \
1009     ? (y)       \
1010     : ((y) < FRAME_TOP_MARGIN_HEIGHT (f) + FRAME_INTERNAL_BORDER_WIDTH (f) \
1011        ? (y) - (FRAME_TOP_MARGIN_HEIGHT (f) + FRAME_INTERNAL_BORDER_WIDTH (f) \
1012                 /* Arrange for the division to round down.  */  \
1013                 + FRAME_LINE_HEIGHT (f) - 1)    \
1014        : (y) - FRAME_INTERNAL_BORDER_WIDTH (f)))        \
1015    / FRAME_LINE_HEIGHT (f))
1016
1017 #define FRAME_PIXEL_X_TO_COL(f, x) \
1018   (((x) - FRAME_INTERNAL_BORDER_WIDTH (f))      \
1019    / FRAME_COLUMN_WIDTH (f))
1020
1021 /* How many columns/rows of text can we fit in WIDTH/HEIGHT pixels on
1022    frame F?  */
1023
1024 #define FRAME_PIXEL_WIDTH_TO_TEXT_COLS(f, width)                \
1025   (FRAME_PIXEL_X_TO_COL (f, ((width)                            \
1026                              - FRAME_INTERNAL_BORDER_WIDTH (f)  \
1027                              - FRAME_TOTAL_FRINGE_WIDTH (f)     \
1028                              - (f)->scroll_bar_actual_width)))
1029
1030 #define FRAME_PIXEL_HEIGHT_TO_TEXT_LINES(f, height) \
1031   (FRAME_PIXEL_Y_TO_LINE (f, ((height) \
1032                               - FRAME_INTERNAL_BORDER_WIDTH (f))))
1033
1034
1035 /***********************************************************************
1036                                 Frame Parameters
1037  ***********************************************************************/
1038
1039 extern Lisp_Object Qauto_raise, Qauto_lower;
1040 extern Lisp_Object Qborder_color, Qborder_width;
1041 extern Lisp_Object Qbuffer_predicate, Qbuffer_list, Qburied_buffer_list;
1042 extern Lisp_Object Qcursor_color, Qcursor_type;
1043 extern Lisp_Object Qfont;
1044 extern Lisp_Object Qbackground_color, Qforeground_color;
1045 extern Lisp_Object Qicon, Qicon_name, Qicon_type, Qicon_left, Qicon_top;
1046 extern Lisp_Object Qinternal_border_width;
1047 extern Lisp_Object Qmenu_bar_lines, Qtool_bar_lines;
1048 extern Lisp_Object Qmouse_color;
1049 extern Lisp_Object Qname, Qtitle;
1050 extern Lisp_Object Qparent_id;
1051 extern Lisp_Object Qunsplittable, Qvisibility;
1052 extern Lisp_Object Qscroll_bar_width, Qvertical_scroll_bars;
1053 extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background;
1054 extern Lisp_Object Qscreen_gamma;
1055 extern Lisp_Object Qline_spacing;
1056 extern Lisp_Object Qwait_for_wm;
1057 extern Lisp_Object Qfullscreen;
1058 extern Lisp_Object Qfullwidth, Qfullheight, Qfullboth, Qmaximized;
1059 extern Lisp_Object Qsticky;
1060 extern Lisp_Object Qfont_backend;
1061 extern Lisp_Object Qalpha;
1062
1063 extern Lisp_Object Qleft_fringe, Qright_fringe;
1064 extern Lisp_Object Qheight, Qwidth;
1065 extern Lisp_Object Qminibuffer, Qmodeline;
1066 extern Lisp_Object Qonly;
1067 extern Lisp_Object Qx, Qw32, Qmac, Qpc, Qns;
1068 extern Lisp_Object Qvisible;
1069 extern Lisp_Object Qdisplay_type;
1070 extern Lisp_Object Qbackground_mode;
1071
1072 extern Lisp_Object Qx_resource_name;
1073
1074 extern Lisp_Object Qleft, Qright, Qtop, Qbox;
1075 extern Lisp_Object Qdisplay;
1076
1077 #ifdef HAVE_WINDOW_SYSTEM
1078
1079 /* The class of this X application.  */
1080 #define EMACS_CLASS "Emacs"
1081
1082 /* These are in xterm.c, w32term.c, etc.  */
1083
1084 extern void x_set_scroll_bar_default_width P_ ((struct frame *));
1085 extern void x_set_offset P_ ((struct frame *, int, int, int));
1086 extern void x_wm_set_icon_position P_ ((struct frame *, int, int));
1087
1088 extern Lisp_Object x_new_font P_ ((struct frame *, Lisp_Object, int));
1089
1090 /* These are in frame.c  */
1091
1092 extern Lisp_Object Vx_resource_name;
1093 extern Lisp_Object Vx_resource_class;
1094
1095
1096 extern Lisp_Object Qface_set_after_frame_default;
1097
1098 extern void x_fullscreen_adjust P_ ((struct frame *f, int *, int *,
1099                                      int *, int *));
1100
1101 extern void x_set_frame_parameters P_ ((struct frame *, Lisp_Object));
1102 extern void x_report_frame_params P_ ((struct frame *, Lisp_Object *));
1103
1104 extern void x_set_fullscreen P_ ((struct frame *, Lisp_Object, Lisp_Object));
1105 extern void x_set_line_spacing P_ ((struct frame *, Lisp_Object, Lisp_Object));
1106 extern void x_set_screen_gamma P_ ((struct frame *, Lisp_Object, Lisp_Object));
1107 extern void x_set_font P_ ((struct frame *, Lisp_Object, Lisp_Object));
1108 extern void x_set_font_backend P_ ((struct frame *, Lisp_Object, Lisp_Object));
1109 extern void x_set_fringe_width P_ ((struct frame *, Lisp_Object, Lisp_Object));
1110 extern void x_set_border_width P_ ((struct frame *, Lisp_Object, Lisp_Object));
1111 extern void x_set_internal_border_width P_ ((struct frame *, Lisp_Object,
1112                                              Lisp_Object));
1113 extern void x_set_visibility P_ ((struct frame *, Lisp_Object, Lisp_Object));
1114 extern void x_set_autoraise P_ ((struct frame *, Lisp_Object, Lisp_Object));
1115 extern void x_set_autolower P_ ((struct frame *, Lisp_Object, Lisp_Object));
1116 extern void x_set_unsplittable P_ ((struct frame *, Lisp_Object, Lisp_Object));
1117 extern void x_set_vertical_scroll_bars P_ ((struct frame *, Lisp_Object,
1118                                             Lisp_Object));
1119 extern void x_set_scroll_bar_width P_ ((struct frame *, Lisp_Object,
1120                                         Lisp_Object));
1121
1122 extern Lisp_Object x_icon_type P_ ((struct frame *));
1123
1124 extern int x_figure_window_size P_ ((struct frame *, Lisp_Object, int));
1125
1126 extern Lisp_Object Vframe_alpha_lower_limit;
1127 extern void x_set_alpha P_ ((struct frame *, Lisp_Object, Lisp_Object));
1128
1129 extern void validate_x_resource_name P_ ((void));
1130
1131 extern Lisp_Object display_x_get_resource (Display_Info *,
1132                                            Lisp_Object attribute,
1133                                            Lisp_Object class,
1134                                            Lisp_Object component,
1135                                            Lisp_Object subclass);
1136
1137 #endif /* HAVE_WINDOW_SYSTEM */
1138
1139 #endif /* not EMACS_FRAME_H */
1140
1141 /* arch-tag: 0df048ee-e6bf-4f48-bd56-e3cd055dd8c4
1142    (do not change this comment) */