src/frame.h

   1 /* Define frame-object for GNU Emacs.
   2    Copyright (C) 1993-1994, 1999-2012 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 3 of the License, or
   9 (at your option) 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.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 /* Don't multiply include: dispextern.h includes macterm.h which
  20    includes frame.h some emacs source includes both dispextern.h and
  21    frame.h */
  22
  23 #ifndef EMACS_FRAME_H
  24 #define EMACS_FRAME_H
  25
  26 #include "dispextern.h"
  27
  28 \f
  29 /* Miscellanea.  */
  30
  31 /* Nonzero means there is at least one garbaged frame. */
  32 extern int frame_garbaged;
  33
  34 \f
  35 /* The structure representing a frame.  */
  36
  37 enum output_method
  38 {
  39   output_initial,
  40   output_termcap,
  41   output_x_window,
  42   output_msdos_raw,
  43   output_w32,
  44   output_mac,
  45   output_ns
  46 };
  47
  48 enum vertical_scroll_bar_type
  49 {
  50   vertical_scroll_bar_none,
  51   vertical_scroll_bar_left,
  52   vertical_scroll_bar_right
  53 };
  54
  55 enum text_cursor_kinds
  56 {
  57   DEFAULT_CURSOR = -2,
  58   NO_CURSOR = -1,
  59   FILLED_BOX_CURSOR,
  60   HOLLOW_BOX_CURSOR,
  61   BAR_CURSOR,
  62   HBAR_CURSOR
  63 };
  64
  65 enum fullscreen_type
  66 {
  67   FULLSCREEN_NONE,
  68   FULLSCREEN_WIDTH     = 0x001,
  69   FULLSCREEN_HEIGHT    = 0x002,
  70   FULLSCREEN_BOTH      = 0x003,
  71   FULLSCREEN_MAXIMIZED = 0x013,
  72   FULLSCREEN_WAIT      = 0x100
  73 };
  74
  75
  76 #define FRAME_FOREGROUND_PIXEL(f) ((f)->foreground_pixel)
  77 #define FRAME_BACKGROUND_PIXEL(f) ((f)->background_pixel)
  78
  79 struct terminal;
  80
  81 struct font_driver_list;
  82
  83 /* Most code should use this macro to set Lisp field in struct frame.  */
  84
  85 #define FSET(f, field, value) ((f)->field = (value))
  86
  87 struct frame
  88 {
  89   struct vectorlike_header header;
  90
  91   /* All Lisp_Object components must come first.
  92      That ensures they are all aligned normally.  */
  93
  94   /* Name of this frame: a Lisp string.  It is used for looking up resources,
  95      as well as for the title in some cases.  */
  96   Lisp_Object name;
  97
  98   /* The name to use for the icon, the last time
  99      it was refreshed.  nil means not explicitly specified.  */
 100   Lisp_Object icon_name;
 101
 102   /* This is the frame title specified explicitly, if any.
 103      Usually it is nil.  */
 104   Lisp_Object title;
 105
 106   /* The frame which should receive keystrokes that occur in this
 107      frame, or nil if they should go to the frame itself.  This is
 108      usually nil, but if the frame is minibufferless, we can use this
 109      to redirect keystrokes to a surrogate minibuffer frame when
 110      needed.
 111
 112      Note that a value of nil is different than having the field point
 113      to the frame itself.  Whenever the Fselect_frame function is used
 114      to shift from one frame to the other, any redirections to the
 115      original frame are shifted to the newly selected frame; if
 116      focus_frame is nil, Fselect_frame will leave it alone.  */
 117   Lisp_Object focus_frame;
 118
 119   /* This frame's root window.  Every frame has one.
 120      If the frame has only a minibuffer window, this is it.
 121      Otherwise, if the frame has a minibuffer window, this is its sibling.  */
 122   Lisp_Object root_window;
 123
 124   /* This frame's selected window.
 125      Each frame has its own window hierarchy
 126      and one of the windows in it is selected within the frame.
 127      The selected window of the selected frame is Emacs's selected window.  */
 128   Lisp_Object selected_window;
 129
 130   /* This frame's minibuffer window.
 131      Most frames have their own minibuffer windows,
 132      but only the selected frame's minibuffer window
 133      can actually appear to exist.  */
 134   Lisp_Object minibuffer_window;
 135
 136   /* Parameter alist of this frame.
 137      These are the parameters specified when creating the frame
 138      or modified with modify-frame-parameters.  */
 139   Lisp_Object param_alist;
 140
 141   /* List of scroll bars on this frame.
 142      Actually, we don't specify exactly what is stored here at all; the
 143      scroll bar implementation code can use it to store anything it likes.
 144      This field is marked by the garbage collector.  It is here
 145      instead of in the `device' structure so that the garbage
 146      collector doesn't need to look inside the window-system-dependent
 147      structure.  */
 148   Lisp_Object scroll_bars;
 149   Lisp_Object condemned_scroll_bars;
 150
 151   /* Vector describing the items to display in the menu bar.
 152      Each item has four elements in this vector.
 153      They are KEY, STRING, SUBMAP, and HPOS.
 154      (HPOS is not used in when the X toolkit is in use.)
 155      There are four additional elements of nil at the end, to terminate.  */
 156   Lisp_Object menu_bar_items;
 157
 158   /* Alist of elements (FACE-NAME . FACE-VECTOR-DATA).  */
 159   Lisp_Object face_alist;
 160
 161   /* A vector that records the entire structure of this frame's menu bar.
 162      For the format of the data, see extensive comments in xmenu.c.
 163      Only the X toolkit version uses this.  */
 164   Lisp_Object menu_bar_vector;
 165
 166   /* Predicate for selecting buffers for other-buffer.  */
 167   Lisp_Object buffer_predicate;
 168
 169   /* List of buffers viewed in this frame, for other-buffer.  */
 170   Lisp_Object buffer_list;
 171
 172   /* List of buffers that were viewed, then buried in this frame.  The
 173      most recently buried buffer is first.  For last-buffer.  */
 174   Lisp_Object buried_buffer_list;
 175
 176   /* A dummy window used to display menu bars under X when no X
 177      toolkit support is available.  */
 178   Lisp_Object menu_bar_window;
 179
 180   /* A window used to display the tool-bar of a frame.  */
 181   Lisp_Object tool_bar_window;
 182
 183   /* Desired and current tool-bar items.  */
 184   Lisp_Object tool_bar_items;
 185
 186   /* Where tool bar is, can be left, right, top or bottom.  The native
 187      tool bar only supports top.  */
 188   Lisp_Object tool_bar_position;
 189
 190   /* Desired and current contents displayed in tool_bar_window.  */
 191   Lisp_Object desired_tool_bar_string;
 192   Lisp_Object current_tool_bar_string;
 193
 194   /* Beyond here, there should be no more Lisp_Object components.  */
 195
 196   /* Cache of realized faces.  */
 197   struct face_cache *face_cache;
 198
 199   /* Number of elements in `menu_bar_vector' that have meaningful data.  */
 200   int menu_bar_items_used;
 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   /* Set to non-zero in change_frame_size when size of frame changed
 217      Clear the frame in clear_garbaged_frames if set.  */
 218   unsigned resized_p : 1;
 219
 220   /* Set to non-zero in when we want for force a flush_display in
 221      update_frame, usually after resizing the frame.  */
 222   unsigned force_flush_display_p : 1;
 223
 224   /* Set to non-zero if the default face for the frame has been
 225      realized.  Reset to zero whenever the default face changes.
 226      Used to see the difference between a font change and face change.  */
 227   unsigned default_face_done_p : 1;
 228
 229   /* Set to non-zero if this frame has already been hscrolled during
 230      current redisplay.  */
 231   unsigned already_hscrolled_p : 1;
 232
 233   /* Set to non-zero when current redisplay has updated frame.  */
 234   unsigned updated_p : 1;
 235
 236   /* Set to non-zero to minimize tool-bar height even when
 237      auto-resize-tool-bar is set to grow-only.  */
 238   unsigned minimize_tool_bar_window_p : 1;
 239
 240 #if defined (USE_GTK) || defined (HAVE_NS)
 241   /* Nonzero means using a tool bar that comes from the toolkit.  */
 242   int external_tool_bar;
 243 #endif
 244
 245   /* Margin at the top of the frame.  Used to display the tool-bar.  */
 246   int tool_bar_lines;
 247
 248   int n_tool_bar_rows;
 249   int n_tool_bar_items;
 250
 251   /* A buffer for decode_mode_line. */
 252   char *decode_mode_spec_buffer;
 253
 254   /* See do_line_insertion_deletion_costs for info on these arrays. */
 255   /* Cost of inserting 1 line on this frame */
 256   int *insert_line_cost;
 257   /* Cost of deleting 1 line on this frame */
 258   int *delete_line_cost;
 259   /* Cost of inserting n lines on this frame */
 260   int *insert_n_lines_cost;
 261   /* Cost of deleting n lines on this frame */
 262   int *delete_n_lines_cost;
 263
 264   /* Size of this frame, excluding fringes, scroll bars etc.,
 265      in units of canonical characters.  */
 266   int text_lines, text_cols;
 267
 268   /* Total size of this frame (i.e. its native window), in units of
 269      canonical characters.  */
 270   int total_lines, total_cols;
 271
 272   /* New text height and width for pending size change.
 273      0 if no change pending.  */
 274   int new_text_lines, new_text_cols;
 275
 276   /* Pixel position of the frame window (x and y offsets in root window).  */
 277   int left_pos, top_pos;
 278
 279   /* Size of the frame window in pixels.  */
 280   int pixel_height, pixel_width;
 281
 282   /* Dots per inch of the screen the frame is on.  */
 283   double resx, resy;
 284
 285   /* These many pixels are the difference between the outer window (i.e. the
 286      left and top of the window manager decoration) and FRAME_X_WINDOW. */
 287   int x_pixels_diff, y_pixels_diff;
 288
 289   /* This is the gravity value for the specified window position.  */
 290   int win_gravity;
 291
 292   /* The geometry flags for this window.  */
 293   int size_hint_flags;
 294
 295   /* Border width of the frame window as known by the (X) window system.  */
 296   int border_width;
 297
 298   /* Width of the internal border.  This is a line of background color
 299      just inside the window's border.  When the frame is selected,
 300      a highlighting is displayed inside the internal border.  */
 301   int internal_border_width;
 302
 303   /* Canonical X unit.  Width of default font, in pixels.  */
 304   int column_width;
 305
 306   /* Width of space glyph of default font, in pixels.  */
 307   int space_width;
 308
 309   /* Canonical Y unit.  Height of a line, in pixels.  */
 310   int line_height;
 311
 312   /* The output method says how the contents of this frame are
 313      displayed.  It could be using termcap, or using an X window.
 314      This must be the same as the terminal->type. */
 315   enum output_method output_method;
 316
 317   /* The terminal device that this frame uses.  If this is NULL, then
 318      the frame has been deleted. */
 319   struct terminal *terminal;
 320
 321   /* Device-dependent, frame-local auxiliary data used for displaying
 322      the contents.  When the frame is deleted, this data is deleted as
 323      well. */
 324   union output_data
 325   {
 326     struct tty_output *tty;     /* termchar.h */
 327     struct x_output *x;         /* xterm.h */
 328     struct w32_output *w32;     /* w32term.h */
 329     struct ns_output *ns;       /* nsterm.h */
 330     intptr_t nothing;
 331   }
 332   output_data;
 333
 334   /* List of font-drivers available on the frame. */
 335   struct font_driver_list *font_driver_list;
 336   /* List of data specific to font-driver and frame, but common to
 337      faces.  */
 338   struct font_data_list *font_data_list;
 339
 340   /* Total width of fringes reserved for drawing truncation bitmaps,
 341      continuation bitmaps and alike.  The width is in canonical char
 342      units of the frame.  This must currently be the case because window
 343      sizes aren't pixel values.  If it weren't the case, we wouldn't be
 344      able to split windows horizontally nicely.  */
 345   int fringe_cols;
 346
 347   /* The extra width (in pixels) currently allotted for fringes.  */
 348   int left_fringe_width, right_fringe_width;
 349
 350   /* See FULLSCREEN_ enum below */
 351   enum fullscreen_type want_fullscreen;
 352
 353   /* Number of lines of menu bar.  */
 354   int menu_bar_lines;
 355
 356 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \
 357     || defined (HAVE_NS) || defined (USE_GTK)
 358   /* Nonzero means using a menu bar that comes from the X toolkit.  */
 359   unsigned int external_menu_bar : 1;
 360 #endif
 361
 362   /* Nonzero if last attempt at redisplay on this frame was preempted.  */
 363   unsigned char display_preempted : 1;
 364
 365   /* visible is nonzero if the frame is currently displayed; we check
 366      it to see if we should bother updating the frame's contents.
 367      DON'T SET IT DIRECTLY; instead, use FRAME_SET_VISIBLE.
 368
 369      Note that, since invisible frames aren't updated, whenever a
 370      frame becomes visible again, it must be marked as garbaged.  The
 371      FRAME_SAMPLE_VISIBILITY macro takes care of this.
 372
 373      On ttys and on Windows NT/9X, to avoid wasting effort updating
 374      visible frames that are actually completely obscured by other
 375      windows on the display, we bend the meaning of visible slightly:
 376      if greater than 1, then the frame is obscured - we still consider
 377      it to be "visible" as seen from lisp, but we don't bother
 378      updating it.  We must take care to garbage the frame when it
 379      ceases to be obscured though.
 380
 381      iconified is nonzero if the frame is currently iconified.
 382
 383      Asynchronous input handlers should NOT change these directly;
 384      instead, they should change async_visible or async_iconified, and
 385      let the FRAME_SAMPLE_VISIBILITY macro set visible and iconified
 386      at the next redisplay.
 387
 388      These should probably be considered read-only by everyone except
 389      FRAME_SAMPLE_VISIBILITY.
 390
 391      These two are mutually exclusive.  They might both be zero, if the
 392      frame has been made invisible without an icon.  */
 393   unsigned char visible : 2;
 394   unsigned char iconified : 1;
 395
 396   /* Let's not use bitfields for volatile variables.  */
 397
 398   /* Asynchronous input handlers change these, and
 399      FRAME_SAMPLE_VISIBILITY copies them into visible and iconified.
 400      See FRAME_SAMPLE_VISIBILITY, below.  */
 401   volatile char async_visible, async_iconified;
 402
 403   /* Nonzero if this frame should be redrawn.  */
 404   volatile char garbaged;
 405
 406   /* True if frame actually has a minibuffer window on it.
 407      0 if using a minibuffer window that isn't on this frame.  */
 408   unsigned char has_minibuffer : 1;
 409
 410   /* 0 means, if this frame has just one window,
 411      show no modeline for that window.  */
 412   unsigned char wants_modeline : 1;
 413
 414   /* Non-zero if the hardware device this frame is displaying on can
 415      support scroll bars.  */
 416   char can_have_scroll_bars;
 417
 418   /* Non-0 means raise this frame to the top of the heap when selected.  */
 419   unsigned char auto_raise : 1;
 420
 421   /* Non-0 means lower this frame to the bottom of the stack when left.  */
 422   unsigned char auto_lower : 1;
 423
 424   /* True if frame's root window can't be split.  */
 425   unsigned char no_split : 1;
 426
 427   /* If this is set, then Emacs won't change the frame name to indicate
 428      the current buffer, etcetera.  If the user explicitly sets the frame
 429      name, this gets set.  If the user sets the name to Qnil, this is
 430      cleared.  */
 431   unsigned char explicit_name : 1;
 432
 433   /* Nonzero if size of some window on this frame has changed.  */
 434   unsigned char window_sizes_changed : 1;
 435
 436   /* Nonzero if the mouse has moved on this display device
 437      since the last time we checked.  */
 438   unsigned char mouse_moved :1;
 439
 440   /* Nonzero means that the pointer is invisible. */
 441   unsigned char pointer_invisible :1;
 442
 443   /* If can_have_scroll_bars is non-zero, this is non-zero if we should
 444      actually display them on this frame.  */
 445   enum vertical_scroll_bar_type vertical_scroll_bar_type;
 446
 447   /* What kind of text cursor should we draw in the future?
 448      This should always be filled_box_cursor or bar_cursor.  */
 449   enum text_cursor_kinds desired_cursor;
 450
 451   /* Width of bar cursor (if we are using that).  */
 452   int cursor_width;
 453
 454   /* What kind of text cursor should we draw when the cursor blinks off?
 455      This can be filled_box_cursor or bar_cursor or no_cursor.  */
 456   enum text_cursor_kinds blink_off_cursor;
 457
 458   /* Width of bar cursor (if we are using that) for blink-off state.  */
 459   int blink_off_cursor_width;
 460
 461   /* Storage for messages to this frame. */
 462   char *message_buf;
 463
 464   /* Nonnegative if current redisplay should not do scroll computation
 465      for lines beyond a certain vpos.  This is the vpos.  */
 466   int scroll_bottom_vpos;
 467
 468   /* Configured width of the scroll bar, in pixels and in characters.
 469      config_scroll_bar_cols tracks config_scroll_bar_width if the
 470      latter is positive; a zero value in config_scroll_bar_width means
 471      to compute the actual width on the fly, using config_scroll_bar_cols
 472      and the current font width.  */
 473   int config_scroll_bar_width;
 474   int config_scroll_bar_cols;
 475
 476   /* The size of the extra width currently allotted for vertical
 477      scroll bars in this frame, in pixels.  */
 478   int scroll_bar_actual_width;
 479
 480   /* The baud rate that was used to calculate costs for this frame.  */
 481   int cost_calculation_baud_rate;
 482
 483   /* frame opacity
 484      alpha[0]: alpha transparency of the active frame
 485      alpha[1]: alpha transparency of inactive frames
 486      Negative values mean not to change alpha.  */
 487   double alpha[2];
 488
 489   /* Exponent for gamma correction of colors.  1/(VIEWING_GAMMA *
 490      SCREEN_GAMMA) where viewing_gamma is 0.4545 and SCREEN_GAMMA is a
 491      frame parameter.  0 means don't do gamma correction.  */
 492   double gamma;
 493
 494   /* Additional space to put between text lines on this frame.  */
 495   int extra_line_spacing;
 496
 497   /* All display backends seem to need these two pixel values. */
 498   unsigned long background_pixel;
 499   unsigned long foreground_pixel;
 500 };
 501
 502 #define FRAME_KBOARD(f) ((f)->terminal->kboard)
 503
 504 /* Return a pointer to the image cache of frame F.  */
 505 #define FRAME_IMAGE_CACHE(F) ((F)->terminal->image_cache)
 506
 507 typedef struct frame *FRAME_PTR;
 508
 509 #define XFRAME(p) \
 510   (eassert (FRAMEP (p)), (struct frame *) XUNTAG (p, Lisp_Vectorlike))
 511 #define XSETFRAME(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_FRAME))
 512
 513 /* Given a window, return its frame as a Lisp_Object.  */
 514 #define WINDOW_FRAME(w) WGET (w, frame)
 515
 516 /* Test a frame for particular kinds of display methods.  */
 517 #define FRAME_INITIAL_P(f) ((f)->output_method == output_initial)
 518 #define FRAME_TERMCAP_P(f) ((f)->output_method == output_termcap)
 519 #define FRAME_X_P(f) ((f)->output_method == output_x_window)
 520 #define FRAME_W32_P(f) ((f)->output_method == output_w32)
 521 #define FRAME_MSDOS_P(f) ((f)->output_method == output_msdos_raw)
 522 #define FRAME_MAC_P(f) ((f)->output_method == output_mac)
 523 #define FRAME_NS_P(f) ((f)->output_method == output_ns)
 524
 525 /* FRAME_WINDOW_P tests whether the frame is a window, and is
 526    defined to be the predicate for the window system being used.  */
 527
 528 #ifdef HAVE_X_WINDOWS
 529 #define FRAME_WINDOW_P(f) FRAME_X_P (f)
 530 #endif
 531 #ifdef HAVE_NTGUI
 532 #define FRAME_WINDOW_P(f) FRAME_W32_P (f)
 533 #endif
 534 #ifdef HAVE_NS
 535 #define FRAME_WINDOW_P(f) FRAME_NS_P(f)
 536 #endif
 537 #ifndef FRAME_WINDOW_P
 538 #define FRAME_WINDOW_P(f) (0)
 539 #endif
 540
 541 /* Return a pointer to the structure holding information about the
 542    region of text, if any, that is currently shown in mouse-face on
 543    frame F.  We need to define two versions because a TTY-only build
 544    does not have FRAME_X_DISPLAY_INFO.  */
 545 #ifdef HAVE_WINDOW_SYSTEM
 546 # define MOUSE_HL_INFO(F)                                       \
 547   (FRAME_WINDOW_P(F)                                            \
 548    ? &FRAME_X_DISPLAY_INFO(F)->mouse_highlight                  \
 549    : &(F)->output_data.tty->display_info->mouse_highlight)
 550 #else
 551 # define MOUSE_HL_INFO(F)                                       \
 552   (&(F)->output_data.tty->display_info->mouse_highlight)
 553 #endif
 554
 555 /* Nonzero if frame F is still alive (not deleted).  */
 556 #define FRAME_LIVE_P(f) ((f)->terminal != 0)
 557
 558 /* Nonzero if frame F is a minibuffer-only frame.  */
 559 #define FRAME_MINIBUF_ONLY_P(f) \
 560   EQ (FRAME_ROOT_WINDOW (f), FRAME_MINIBUF_WINDOW (f))
 561
 562 /* Nonzero if frame F contains a minibuffer window.
 563    (If this is 0, F must use some other minibuffer window.)  */
 564 #define FRAME_HAS_MINIBUF_P(f) ((f)->has_minibuffer)
 565
 566 /* Pixel height of frame F, including non-toolkit menu bar and
 567    non-toolkit tool bar lines.  */
 568 #define FRAME_PIXEL_HEIGHT(f) ((f)->pixel_height)
 569
 570 /* Pixel width of frame F.  */
 571 #define FRAME_PIXEL_WIDTH(f) ((f)->pixel_width)
 572
 573 /* Height of frame F, measured in canonical lines, including
 574    non-toolkit menu bar and non-toolkit tool bar lines.  */
 575 #define FRAME_LINES(f) (f)->text_lines
 576
 577 /* Width of frame F, measured in canonical character columns,
 578    not including scroll bars if any.  */
 579 #define FRAME_COLS(f) (f)->text_cols
 580
 581 /* Number of lines of frame F used for menu bar.
 582    This is relevant on terminal frames and on
 583    X Windows when not using the X toolkit.
 584    These lines are counted in FRAME_LINES.  */
 585 #define FRAME_MENU_BAR_LINES(f) (f)->menu_bar_lines
 586
 587 /* Nonzero if this frame should display a tool bar
 588    in a way that does not use any text lines.  */
 589 #if defined (USE_GTK) || defined (HAVE_NS)
 590 #define FRAME_EXTERNAL_TOOL_BAR(f) (f)->external_tool_bar
 591 #else
 592 #define FRAME_EXTERNAL_TOOL_BAR(f) 0
 593 #endif
 594
 595 /* Number of lines of frame F used for the tool-bar.  */
 596
 597 #define FRAME_TOOL_BAR_LINES(f) (f)->tool_bar_lines
 598
 599
 600 /* Lines above the top-most window in frame F.  */
 601
 602 #define FRAME_TOP_MARGIN(F) \
 603   (FRAME_MENU_BAR_LINES (F) + FRAME_TOOL_BAR_LINES (F))
 604
 605 /* Pixel height of the top margin above.  */
 606
 607 #define FRAME_TOP_MARGIN_HEIGHT(f) \
 608   (FRAME_TOP_MARGIN (f) * FRAME_LINE_HEIGHT (f))
 609
 610 /* Nonzero if this frame should display a menu bar
 611    in a way that does not use any text lines.  */
 612 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \
 613      || defined (HAVE_NS) || defined (USE_GTK)
 614 #define FRAME_EXTERNAL_MENU_BAR(f) (f)->external_menu_bar
 615 #else
 616 #define FRAME_EXTERNAL_MENU_BAR(f) 0
 617 #endif
 618 #define FRAME_VISIBLE_P(f) ((f)->visible != 0)
 619
 620 /* Nonzero if frame F is currently visible but hidden.  */
 621 #define FRAME_OBSCURED_P(f) ((f)->visible > 1)
 622
 623 /* Nonzero if frame F is currently iconified.  */
 624 #define FRAME_ICONIFIED_P(f) (f)->iconified
 625
 626 #define FRAME_SET_VISIBLE(f,p) \
 627   ((f)->async_visible = (p), FRAME_SAMPLE_VISIBILITY (f))
 628 #define SET_FRAME_GARBAGED(f) (frame_garbaged = 1, f->garbaged = 1)
 629 #define FRAME_GARBAGED_P(f) (f)->garbaged
 630
 631 /* Nonzero means do not allow splitting this frame's window.  */
 632 #define FRAME_NO_SPLIT_P(f) (f)->no_split
 633
 634 /* Not really implemented.  */
 635 #define FRAME_WANTS_MODELINE_P(f) (f)->wants_modeline
 636
 637 /* Nonzero if a size change has been requested for frame F
 638    but not yet really put into effect.  This can be true temporarily
 639    when an X event comes in at a bad time.  */
 640 #define FRAME_WINDOW_SIZES_CHANGED(f) (f)->window_sizes_changed
 641
 642 /* The minibuffer window of frame F, if it has one; otherwise nil.  */
 643 #define FRAME_MINIBUF_WINDOW(f) f->minibuffer_window
 644
 645 /* The root window of the window tree of frame F.  */
 646 #define FRAME_ROOT_WINDOW(f) f->root_window
 647
 648 /* The currently selected window of the window tree of frame F.  */
 649 #define FRAME_SELECTED_WINDOW(f) f->selected_window
 650
 651 #define FRAME_INSERT_COST(f) (f)->insert_line_cost
 652 #define FRAME_DELETE_COST(f) (f)->delete_line_cost
 653 #define FRAME_INSERTN_COST(f) (f)->insert_n_lines_cost
 654 #define FRAME_DELETEN_COST(f) (f)->delete_n_lines_cost
 655 #define FRAME_MESSAGE_BUF(f) (f)->message_buf
 656 #define FRAME_SCROLL_BOTTOM_VPOS(f) (f)->scroll_bottom_vpos
 657 #define FRAME_FOCUS_FRAME(f) f->focus_frame
 658
 659 /* Nonzero if frame F supports scroll bars.
 660    If this is zero, then it is impossible to enable scroll bars
 661    on frame F.  */
 662 #define FRAME_CAN_HAVE_SCROLL_BARS(f) ((f)->can_have_scroll_bars)
 663
 664 /* This frame slot says whether scroll bars are currently enabled for frame F,
 665    and which side they are on.  */
 666 #define FRAME_VERTICAL_SCROLL_BAR_TYPE(f) ((f)->vertical_scroll_bar_type)
 667 #define FRAME_HAS_VERTICAL_SCROLL_BARS(f) \
 668   ((f)->vertical_scroll_bar_type != vertical_scroll_bar_none)
 669 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT(f) \
 670   ((f)->vertical_scroll_bar_type == vertical_scroll_bar_left)
 671 #define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT(f) \
 672   ((f)->vertical_scroll_bar_type == vertical_scroll_bar_right)
 673
 674 /* Width that a scroll bar in frame F should have, if there is one.
 675    Measured in pixels.
 676    If scroll bars are turned off, this is still nonzero.  */
 677 #define FRAME_CONFIG_SCROLL_BAR_WIDTH(f) ((f)->config_scroll_bar_width)
 678
 679 /* Width that a scroll bar in frame F should have, if there is one.
 680    Measured in columns (characters).
 681    If scroll bars are turned off, this is still nonzero.  */
 682 #define FRAME_CONFIG_SCROLL_BAR_COLS(f) ((f)->config_scroll_bar_cols)
 683
 684 /* Width of a scroll bar in frame F, measured in columns (characters),
 685    but only if scroll bars are on the left.  If scroll bars are on
 686    the right in this frame, or there are no scroll bars, value is 0.  */
 687
 688 #define FRAME_LEFT_SCROLL_BAR_COLS(f)                   \
 689   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)           \
 690    ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                   \
 691    : 0)
 692
 693 /* Width of a left scroll bar in frame F, measured in pixels */
 694
 695 #define FRAME_LEFT_SCROLL_BAR_AREA_WIDTH(f)                             \
 696   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)                           \
 697    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 698    : 0)
 699
 700 /* Width of a scroll bar in frame F, measured in columns (characters),
 701    but only if scroll bars are on the right.  If scroll bars are on
 702    the left in this frame, or there are no scroll bars, value is 0.  */
 703
 704 #define FRAME_RIGHT_SCROLL_BAR_COLS(f)                  \
 705   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)          \
 706    ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                   \
 707    : 0)
 708
 709 /* Width of a right scroll bar area in frame F, measured in pixels */
 710
 711 #define FRAME_RIGHT_SCROLL_BAR_AREA_WIDTH(f)                            \
 712   (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)                          \
 713    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 714    : 0)
 715
 716 /* Actual width of a scroll bar in frame F, measured in columns.  */
 717
 718 #define FRAME_SCROLL_BAR_COLS(f)                        \
 719   (FRAME_HAS_VERTICAL_SCROLL_BARS (f)                   \
 720    ? FRAME_CONFIG_SCROLL_BAR_COLS (f)                   \
 721    : 0)
 722
 723 /* Actual width of a scroll bar area in frame F, measured in pixels.  */
 724
 725 #define FRAME_SCROLL_BAR_AREA_WIDTH(f)                                  \
 726   (FRAME_HAS_VERTICAL_SCROLL_BARS (f)                                   \
 727    ? (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))        \
 728    : 0)
 729
 730 /* Total width of frame F, in columns (characters),
 731    including the width used by scroll bars if any.  */
 732
 733 #define FRAME_TOTAL_COLS(f) ((f)->total_cols)
 734
 735 /* Set the width of frame F to VAL.
 736    VAL is the width of a full-frame window,
 737    not including scroll bars and fringes.  */
 738
 739 #define SET_FRAME_COLS(f, val)                                          \
 740   (FRAME_COLS (f) = (val),                                              \
 741    (f)->total_cols = FRAME_TOTAL_COLS_ARG (f, FRAME_COLS (f)))
 742
 743 /* Given a value WIDTH for frame F's nominal width,
 744    return the value that FRAME_TOTAL_COLS should have.  */
 745
 746 #define FRAME_TOTAL_COLS_ARG(f, width)          \
 747   ((width)                                      \
 748    + FRAME_SCROLL_BAR_COLS (f)                  \
 749    + FRAME_FRINGE_COLS (f))
 750
 751 /* Maximum + 1 legitimate value for FRAME_CURSOR_X.  */
 752
 753 #define FRAME_CURSOR_X_LIMIT(f) \
 754   (FRAME_COLS (f) + FRAME_LEFT_SCROLL_BAR_COLS (f))
 755
 756 /* Nonzero if frame F has scroll bars.  */
 757
 758 #define FRAME_SCROLL_BARS(f) (f->scroll_bars)
 759
 760 #define FRAME_CONDEMNED_SCROLL_BARS(f) (f->condemned_scroll_bars)
 761 #define FRAME_MENU_BAR_ITEMS(f) (f->menu_bar_items)
 762 #define FRAME_COST_BAUD_RATE(f) ((f)->cost_calculation_baud_rate)
 763
 764 #define FRAME_DESIRED_CURSOR(f) ((f)->desired_cursor)
 765 #define FRAME_BLINK_OFF_CURSOR(f) ((f)->blink_off_cursor)
 766 #define FRAME_CURSOR_WIDTH(f) ((f)->cursor_width)
 767 #define FRAME_BLINK_OFF_CURSOR_WIDTH(f) ((f)->blink_off_cursor_width)
 768
 769 /* Return a pointer to the face cache of frame F.  */
 770
 771 #define FRAME_FACE_CACHE(F)     (F)->face_cache
 772
 773 /* Return the size of message_buf of the frame F.  We multiply the
 774    width of the frame by 4 because multi-byte form may require at most
 775    4-byte for a character.  */
 776
 777 #define FRAME_MESSAGE_BUF_SIZE(f) (((int) FRAME_COLS (f)) * 4)
 778
 779 /* Emacs's redisplay code could become confused if a frame's
 780    visibility changes at arbitrary times.  For example, if a frame is
 781    visible while the desired glyphs are being built, but becomes
 782    invisible before they are updated, then some rows of the
 783    desired_glyphs will be left marked as enabled after redisplay is
 784    complete, which should never happen.  The next time the frame
 785    becomes visible, redisplay will probably barf.
 786
 787    Currently, there are no similar situations involving iconified, but
 788    the principle is the same.
 789
 790    So instead of having asynchronous input handlers directly set and
 791    clear the frame's visibility and iconification flags, they just set
 792    the async_visible and async_iconified flags; the redisplay code
 793    calls the FRAME_SAMPLE_VISIBILITY macro before doing any redisplay,
 794    which sets visible and iconified from their asynchronous
 795    counterparts.
 796
 797    Synchronous code must use the FRAME_SET_VISIBLE macro.
 798
 799    Also, if a frame used to be invisible, but has just become visible,
 800    it must be marked as garbaged, since redisplay hasn't been keeping
 801    up its contents.
 802
 803    Note that a tty frame is visible if and only if it is the topmost
 804    frame. */
 805
 806 #define FRAME_SAMPLE_VISIBILITY(f) \
 807   (((f)->async_visible && (f)->visible != (f)->async_visible) ? \
 808    SET_FRAME_GARBAGED (f) : 0, \
 809    (f)->visible = (f)->async_visible, \
 810    (f)->iconified = (f)->async_iconified)
 811
 812 #define CHECK_FRAME(x) \
 813   CHECK_TYPE (FRAMEP (x), Qframep, x)
 814
 815 #define CHECK_LIVE_FRAME(x) \
 816   CHECK_TYPE (FRAMEP (x) && FRAME_LIVE_P (XFRAME (x)), Qframe_live_p, x)
 817
 818 /* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
 819    `for' loop which iterates over the elements of Vframe_list.  The
 820    loop will set FRAME_VAR, a Lisp_Object, to each frame in
 821    Vframe_list in succession and execute the statement.  LIST_VAR
 822    should be a Lisp_Object too; it is used to iterate through the
 823    Vframe_list.
 824
 825    This macro is a holdover from a time when multiple frames weren't always
 826    supported.  An alternate definition of the macro would expand to
 827    something which executes the statement once.  */
 828
 829 #define FOR_EACH_FRAME(list_var, frame_var)     \
 830   for ((list_var) = Vframe_list;                \
 831        (CONSP (list_var)                        \
 832         && (frame_var = XCAR (list_var), 1));   \
 833        list_var = XCDR (list_var))
 834
 835
 836 extern Lisp_Object Qframep, Qframe_live_p;
 837 extern Lisp_Object Qtty, Qtty_type;
 838 extern Lisp_Object Qtty_color_mode;
 839 extern Lisp_Object Qterminal, Qterminal_live_p;
 840 extern Lisp_Object Qnoelisp;
 841
 842 extern struct frame *last_nonminibuf_frame;
 843
 844 extern void set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
 845 extern struct frame *make_initial_frame (void);
 846 extern struct frame *make_frame (int);
 847 #ifdef HAVE_WINDOW_SYSTEM
 848 extern struct frame *make_minibuffer_frame (void);
 849 extern struct frame *make_frame_without_minibuffer (Lisp_Object,
 850                                                     struct kboard *,
 851                                                     Lisp_Object);
 852 #endif /* HAVE_WINDOW_SYSTEM */
 853 extern void frame_make_pointer_invisible (void);
 854 extern void frame_make_pointer_visible (void);
 855 extern Lisp_Object delete_frame (Lisp_Object, Lisp_Object);
 856
 857 extern Lisp_Object Vframe_list;
 858 \f
 859 /* The currently selected frame.  */
 860
 861 extern Lisp_Object selected_frame;
 862
 863 /* Value is a pointer to the selected frame.  If the selected frame
 864    isn't live, abort.  */
 865
 866 #define SELECTED_FRAME()                                \
 867      ((FRAMEP (selected_frame)                          \
 868        && FRAME_LIVE_P (XFRAME (selected_frame)))       \
 869       ? XFRAME (selected_frame)                         \
 870       : (abort (), (struct frame *) 0))
 871
 872 \f
 873 /***********************************************************************
 874                         Display-related Macros
 875  ***********************************************************************/
 876
 877 /* Canonical y-unit on frame F.
 878    This value currently equals the line height of the frame (which is
 879    the height of the default font of F).  */
 880
 881 #define FRAME_LINE_HEIGHT(F) ((F)->line_height)
 882
 883 /* Canonical x-unit on frame F.
 884    This value currently equals the average width of the default font of F.  */
 885
 886 #define FRAME_COLUMN_WIDTH(F) ((F)->column_width)
 887
 888 /* Space glyph width of the default font of frame F.  */
 889
 890 #define FRAME_SPACE_WIDTH(F) ((F)->space_width)
 891
 892
 893 /* Pixel width of areas used to display truncation marks, continuation
 894    marks, overlay arrows.  This is 0 for terminal frames.  */
 895
 896 #ifdef HAVE_WINDOW_SYSTEM
 897
 898 /* Total width of fringes reserved for drawing truncation bitmaps,
 899    continuation bitmaps and alike.  The width is in canonical char
 900    units of the frame.  This must currently be the case because window
 901    sizes aren't pixel values.  If it weren't the case, we wouldn't be
 902    able to split windows horizontally nicely.  */
 903
 904 #define FRAME_FRINGE_COLS(F) ((F)->fringe_cols)
 905
 906 /* Pixel-width of the left and right fringe.  */
 907
 908 #define FRAME_LEFT_FRINGE_WIDTH(F) ((F)->left_fringe_width)
 909 #define FRAME_RIGHT_FRINGE_WIDTH(F) ((F)->right_fringe_width)
 910
 911 /* Total width of fringes in pixels.  */
 912
 913 #define FRAME_TOTAL_FRINGE_WIDTH(F) \
 914   (FRAME_LEFT_FRINGE_WIDTH (F) + FRAME_RIGHT_FRINGE_WIDTH (F))
 915
 916
 917 /* Pixel-width of internal border lines */
 918
 919 #define FRAME_INTERNAL_BORDER_WIDTH(F) ((F)->internal_border_width)
 920
 921 #else /* not HAVE_WINDOW_SYSTEM */
 922
 923 #define FRAME_FRINGE_COLS(F)    0
 924 #define FRAME_TOTAL_FRINGE_WIDTH(F)     0
 925 #define FRAME_LEFT_FRINGE_WIDTH(F)  0
 926 #define FRAME_RIGHT_FRINGE_WIDTH(F) 0
 927 #define FRAME_INTERNAL_BORDER_WIDTH(F) 0
 928
 929 #endif /* not HAVE_WINDOW_SYSTEM */
 930
 931
 932
 933 \f
 934 /***********************************************************************
 935             Conversion between canonical units and pixels
 936  ***********************************************************************/
 937
 938 /* Canonical x-values are fractions of FRAME_COLUMN_WIDTH, canonical
 939    y-unit are fractions of FRAME_LINE_HEIGHT of a frame.  Both are
 940    represented as Lisp numbers, i.e. integers or floats.  */
 941
 942 /* Convert canonical value X to pixels.  F is the frame whose
 943    canonical char width is to be used.  X must be a Lisp integer or
 944    float.  Value is a C integer.  */
 945
 946 #define FRAME_PIXEL_X_FROM_CANON_X(F, X)                \
 947   (INTEGERP (X)                                         \
 948    ? XINT (X) * FRAME_COLUMN_WIDTH (F)                  \
 949    : (int) (XFLOAT_DATA (X) * FRAME_COLUMN_WIDTH (F)))
 950
 951 /* Convert canonical value Y to pixels.  F is the frame whose
 952    canonical character height is to be used.  X must be a Lisp integer
 953    or float.  Value is a C integer.  */
 954
 955 #define FRAME_PIXEL_Y_FROM_CANON_Y(F, Y)                \
 956   (INTEGERP (Y)                                         \
 957    ? XINT (Y) * FRAME_LINE_HEIGHT (F)                   \
 958    : (int) (XFLOAT_DATA (Y) * FRAME_LINE_HEIGHT (F)))
 959
 960 /* Convert pixel-value X to canonical units.  F is the frame whose
 961    canonical character width is to be used.  X is a C integer.  Result
 962    is a Lisp float if X is not a multiple of the canon width,
 963    otherwise it's a Lisp integer.  */
 964
 965 #define FRAME_CANON_X_FROM_PIXEL_X(F, X)                        \
 966   ((X) % FRAME_COLUMN_WIDTH (F) != 0                            \
 967    ? make_float ((double) (X) / FRAME_COLUMN_WIDTH (F))         \
 968    : make_number ((X) / FRAME_COLUMN_WIDTH (F)))
 969
 970 /* Convert pixel-value Y to canonical units.  F is the frame whose
 971    canonical character height is to be used.  Y is a C integer.
 972    Result is a Lisp float if Y is not a multiple of the canon width,
 973    otherwise it's a Lisp integer.  */
 974
 975 #define FRAME_CANON_Y_FROM_PIXEL_Y(F, Y)                        \
 976   ((Y) % FRAME_LINE_HEIGHT (F)                                  \
 977    ? make_float ((double) (Y) / FRAME_LINE_HEIGHT (F))          \
 978    : make_number ((Y) / FRAME_LINE_HEIGHT (F)))
 979
 980
 981 \f
 982 /* Manipulating pixel sizes and character sizes.
 983    Knowledge of which factors affect the overall size of the window should
 984    be hidden in these macros, if that's possible.
 985
 986    Return the upper/left pixel position of the character cell on frame F
 987    at ROW/COL.  */
 988
 989 #define FRAME_LINE_TO_PIXEL_Y(f, row) \
 990   (((row) < FRAME_TOP_MARGIN (f) ? 0 : FRAME_INTERNAL_BORDER_WIDTH (f)) \
 991    + (row) * FRAME_LINE_HEIGHT (f))
 992
 993 #define FRAME_COL_TO_PIXEL_X(f, col) \
 994   (FRAME_INTERNAL_BORDER_WIDTH (f) \
 995    + (col) * FRAME_COLUMN_WIDTH (f))
 996
 997 /* Return the pixel width/height of frame F if it has
 998    COLS columns/LINES rows.  */
 999
1000 #define FRAME_TEXT_COLS_TO_PIXEL_WIDTH(f, cols) \
1001   (FRAME_COL_TO_PIXEL_X (f, cols) \
1002    + (f)->scroll_bar_actual_width \
1003    + FRAME_TOTAL_FRINGE_WIDTH (f)      \
1004    + FRAME_INTERNAL_BORDER_WIDTH (f))
1005
1006 #define FRAME_TEXT_LINES_TO_PIXEL_HEIGHT(f, lines) \
1007   ((lines) * FRAME_LINE_HEIGHT (f) \
1008    + 2 * FRAME_INTERNAL_BORDER_WIDTH (f))
1009
1010
1011 /* Return the row/column (zero-based) of the character cell containing
1012    the pixel on FRAME at Y/X.  */
1013
1014 #define FRAME_PIXEL_Y_TO_LINE(f, y) \
1015   (((y) < FRAME_TOP_MARGIN_HEIGHT (f)   \
1016     ? (y)       \
1017     : ((y) < FRAME_TOP_MARGIN_HEIGHT (f) + FRAME_INTERNAL_BORDER_WIDTH (f) \
1018        ? (y) - (FRAME_TOP_MARGIN_HEIGHT (f) + FRAME_INTERNAL_BORDER_WIDTH (f) \
1019                 /* Arrange for the division to round down.  */  \
1020                 + FRAME_LINE_HEIGHT (f) - 1)    \
1021        : (y) - FRAME_INTERNAL_BORDER_WIDTH (f)))        \
1022    / FRAME_LINE_HEIGHT (f))
1023
1024 #define FRAME_PIXEL_X_TO_COL(f, x) \
1025   (((x) - FRAME_INTERNAL_BORDER_WIDTH (f))      \
1026    / FRAME_COLUMN_WIDTH (f))
1027
1028 /* How many columns/rows of text can we fit in WIDTH/HEIGHT pixels on
1029    frame F?  */
1030
1031 #define FRAME_PIXEL_WIDTH_TO_TEXT_COLS(f, width)                \
1032   (FRAME_PIXEL_X_TO_COL (f, ((width)                            \
1033                              - FRAME_INTERNAL_BORDER_WIDTH (f)  \
1034                              - FRAME_TOTAL_FRINGE_WIDTH (f)     \
1035                              - (f)->scroll_bar_actual_width)))
1036
1037 #define FRAME_PIXEL_HEIGHT_TO_TEXT_LINES(f, height) \
1038   (FRAME_PIXEL_Y_TO_LINE (f, ((height) \
1039                               - FRAME_INTERNAL_BORDER_WIDTH (f))))
1040
1041
1042 /***********************************************************************
1043                                 Frame Parameters
1044  ***********************************************************************/
1045
1046 extern Lisp_Object Qauto_raise, Qauto_lower;
1047 extern Lisp_Object Qborder_color, Qborder_width;
1048 extern Lisp_Object Qbuffer_predicate;
1049 extern Lisp_Object Qcursor_color, Qcursor_type;
1050 extern Lisp_Object Qfont;
1051 extern Lisp_Object Qbackground_color, Qforeground_color;
1052 extern Lisp_Object Qicon, Qicon_name, Qicon_type, Qicon_left, Qicon_top;
1053 extern Lisp_Object Qinternal_border_width;
1054 extern Lisp_Object Qtooltip;
1055 extern Lisp_Object Qmenu_bar_lines, Qtool_bar_lines, Qtool_bar_position;
1056 extern Lisp_Object Qmouse_color;
1057 extern Lisp_Object Qname, Qtitle;
1058 extern Lisp_Object Qparent_id;
1059 extern Lisp_Object Qunsplittable, Qvisibility;
1060 extern Lisp_Object Qscroll_bar_width, Qvertical_scroll_bars;
1061 extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background;
1062 extern Lisp_Object Qscreen_gamma;
1063 extern Lisp_Object Qline_spacing;
1064 extern Lisp_Object Qwait_for_wm;
1065 extern Lisp_Object Qfullscreen;
1066 extern Lisp_Object Qfullwidth, Qfullheight, Qfullboth, Qmaximized;
1067 extern Lisp_Object Qsticky;
1068 extern Lisp_Object Qfont_backend;
1069 extern Lisp_Object Qalpha;
1070
1071 extern Lisp_Object Qleft_fringe, Qright_fringe;
1072 extern Lisp_Object Qheight, Qwidth;
1073 extern Lisp_Object Qminibuffer, Qmodeline;
1074 extern Lisp_Object Qx, Qw32, Qmac, Qpc, Qns;
1075 extern Lisp_Object Qvisible;
1076 extern Lisp_Object Qdisplay_type;
1077
1078 extern Lisp_Object Qx_resource_name;
1079
1080 extern Lisp_Object Qleft, Qright, Qtop, Qbox, Qbottom;
1081 extern Lisp_Object Qdisplay;
1082
1083 extern Lisp_Object Qrun_hook_with_args;
1084
1085 #ifdef HAVE_WINDOW_SYSTEM
1086
1087 /* The class of this X application.  */
1088 #define EMACS_CLASS "Emacs"
1089
1090 /* These are in xterm.c, w32term.c, etc.  */
1091
1092 extern void x_set_scroll_bar_default_width (struct frame *);
1093 extern void x_set_offset (struct frame *, int, int, int);
1094 extern void x_wm_set_icon_position (struct frame *, int, int);
1095
1096 extern Lisp_Object x_new_font (struct frame *, Lisp_Object, int);
1097
1098
1099 extern Lisp_Object Qface_set_after_frame_default;
1100
1101 #ifdef WINDOWSNT
1102 extern void x_fullscreen_adjust (struct frame *f, int *, int *,
1103                                  int *, int *);
1104 #endif
1105
1106 extern void x_set_frame_parameters (struct frame *, Lisp_Object);
1107
1108 extern void x_set_fullscreen (struct frame *, Lisp_Object, Lisp_Object);
1109 extern void x_set_line_spacing (struct frame *, Lisp_Object, Lisp_Object);
1110 extern void x_set_screen_gamma (struct frame *, Lisp_Object, Lisp_Object);
1111 extern void x_set_font (struct frame *, Lisp_Object, Lisp_Object);
1112 extern void x_set_font_backend (struct frame *, Lisp_Object, Lisp_Object);
1113 extern void x_set_fringe_width (struct frame *, Lisp_Object, Lisp_Object);
1114 extern void x_set_border_width (struct frame *, Lisp_Object, Lisp_Object);
1115 extern void x_set_internal_border_width (struct frame *, Lisp_Object,
1116                                          Lisp_Object);
1117 extern void x_set_visibility (struct frame *, Lisp_Object, Lisp_Object);
1118 extern void x_set_autoraise (struct frame *, Lisp_Object, Lisp_Object);
1119 extern void x_set_autolower (struct frame *, Lisp_Object, Lisp_Object);
1120 extern void x_set_unsplittable (struct frame *, Lisp_Object, Lisp_Object);
1121 extern void x_set_vertical_scroll_bars (struct frame *, Lisp_Object,
1122                                         Lisp_Object);
1123 extern void x_set_scroll_bar_width (struct frame *, Lisp_Object,
1124                                     Lisp_Object);
1125
1126 extern Lisp_Object x_icon_type (struct frame *);
1127
1128 extern int x_figure_window_size (struct frame *, Lisp_Object, int);
1129
1130 extern void x_set_alpha (struct frame *, Lisp_Object, Lisp_Object);
1131
1132 extern void validate_x_resource_name (void);
1133
1134 extern Lisp_Object display_x_get_resource (Display_Info *,
1135                                            Lisp_Object attribute,
1136                                            Lisp_Object class,
1137                                            Lisp_Object component,
1138                                            Lisp_Object subclass);
1139
1140 #if defined HAVE_X_WINDOWS && !defined USE_X_TOOLKIT
1141 extern char *x_get_resource_string (const char *, const char *);
1142 #endif
1143
1144 /* In xmenu.c */
1145 extern void set_frame_menubar (FRAME_PTR, int, int);
1146
1147 #endif /* HAVE_WINDOW_SYSTEM */
1148
1149 #endif /* not EMACS_FRAME_H */