src/xterm.h

   1 /* Definitions and headers for communication with X protocol.
   2    Copyright (C) 1989, 1993, 1994, 1998, 1999, 2000, 2001, 2001
   3    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 2, or (at your option)
  10 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; see the file COPYING.  If not, write to
  19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 #include <X11/Xlib.h>
  23 #include <X11/cursorfont.h>
  24 #include <X11/Xutil.h>
  25 #include <X11/keysym.h>
  26 #include <X11/Xatom.h>
  27 #include <X11/Xresource.h>
  28
  29 #ifdef USE_X_TOOLKIT
  30 #include <X11/StringDefs.h>
  31 #include <X11/IntrinsicP.h>     /* CoreP.h needs this */
  32 #include <X11/CoreP.h>          /* foul, but we need this to use our own
  33                                    window inside a widget instead of one
  34                                    that Xt creates... */
  35 #include <X11/StringDefs.h>
  36
  37 typedef Widget xt_or_gtk_widget;
  38 #endif
  39
  40 #ifdef USE_GTK
  41 #include <gtk/gtk.h>
  42 #include <gdk/gdkx.h>
  43
  44 /* Some definitions to reduce conditionals.  */
  45 typedef GtkWidget *xt_or_gtk_widget;
  46 #define XtParent(x) (gtk_widget_get_parent (x))
  47 #undef XSync
  48 #define XSync(d, b) gdk_window_process_all_updates ()
  49
  50 #endif /* USE_GTK */
  51
  52 /* The class of this X application.  */
  53 #define EMACS_CLASS "Emacs"
  54 \f
  55 /* Bookkeeping to distinguish X versions.  */
  56
  57 /* HAVE_X11R4 is defined if we have the features of X11R4.  It should
  58    be defined when we're using X11R5, since X11R5 has the features of
  59    X11R4.  If, in the future, we find we need more of these flags
  60    (HAVE_X11R5, for example), code should always be written to test
  61    the most recent flag first:
  62
  63       #ifdef HAVE_X11R5
  64         ...
  65       #elif HAVE_X11R4
  66         ...
  67       #elif HAVE_X11
  68         ...
  69       #endif
  70
  71    If you ever find yourself writing a "#ifdef HAVE_FOO" clause that
  72    looks a lot like another one, consider moving the text into a macro
  73    whose definition is configuration-dependent, but whose usage is
  74    universal - like the stuff in systime.h.
  75
  76    It turns out that we can auto-detect whether we're being compiled
  77    with X11R3 or X11R4 by looking for the flag macros for R4 structure
  78    members that R3 doesn't have.  */
  79 #ifdef PBaseSize
  80 /* AIX 3.1's X is somewhere between X11R3 and X11R4.  It has
  81    PBaseSize, but not XWithdrawWindow, XSetWMName, XSetWMNormalHints,
  82    XSetWMIconName.
  83    AIX 3.2 is at least X11R4.  */
  84 #if (!defined AIX) || (defined AIX3_2)
  85 #define HAVE_X11R4
  86 #endif
  87 #endif
  88
  89 #ifdef HAVE_X11R5
  90 /* In case someone has X11R5 on AIX 3.1,
  91    make sure HAVE_X11R4 is defined as well as HAVE_X11R5.  */
  92 #define HAVE_X11R4
  93 #endif
  94
  95 #ifdef HAVE_X_I18N
  96 #include <X11/Xlocale.h>
  97 #endif
  98 \f
  99 #define BLACK_PIX_DEFAULT(f) BlackPixel (FRAME_X_DISPLAY (f), \
 100                                          XScreenNumberOfScreen (FRAME_X_SCREEN (f)))
 101 #define WHITE_PIX_DEFAULT(f) WhitePixel (FRAME_X_DISPLAY (f), \
 102                                          XScreenNumberOfScreen (FRAME_X_SCREEN (f)))
 103
 104 #define FONT_WIDTH(f)   ((f)->max_bounds.width)
 105 #define FONT_HEIGHT(f)  ((f)->ascent + (f)->descent)
 106 #define FONT_BASE(f)    ((f)->ascent)
 107
 108 /* The mask of events that text windows always want to receive.  This
 109    includes mouse movement events, since handling the mouse-font text property
 110    means that we must track mouse motion all the time.  */
 111
 112 #define STANDARD_EVENT_SET      \
 113   (KeyPressMask                 \
 114    | ExposureMask               \
 115    | ButtonPressMask            \
 116    | ButtonReleaseMask          \
 117    | PointerMotionMask          \
 118    | StructureNotifyMask        \
 119    | FocusChangeMask            \
 120    | LeaveWindowMask            \
 121    | EnterWindowMask            \
 122    | VisibilityChangeMask)
 123
 124 /* Structure recording X pixmap and reference count.
 125    If REFCOUNT is 0 then this record is free to be reused.  */
 126
 127 struct x_bitmap_record
 128 {
 129   Pixmap pixmap;
 130   char *file;
 131   int refcount;
 132   /* Record some info about this pixmap.  */
 133   int height, width, depth;
 134 };
 135 \f
 136 /* For each X display, we have a structure that records
 137    information about it.  */
 138
 139 struct x_display_info
 140 {
 141   /* Chain of all x_display_info structures.  */
 142   struct x_display_info *next;
 143
 144   /* Connection number (normally a file descriptor number).  */
 145   int connection;
 146
 147   /* This says how to access this display in Xlib.  */
 148   Display *display;
 149
 150   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
 151      The same cons cell also appears in x_display_name_list.  */
 152   Lisp_Object name_list_element;
 153
 154   /* Number of frames that are on this display.  */
 155   int reference_count;
 156
 157   /* The Screen this connection is connected to.  */
 158   Screen *screen;
 159
 160   /* Dots per inch of the screen.  */
 161   double resx, resy;
 162
 163   /* The Visual being used for this display.  */
 164   Visual *visual;
 165
 166   /* The colormap being used.  */
 167   Colormap cmap;
 168
 169   /* Number of panes on this screen.  */
 170   int n_planes;
 171
 172   /* Dimensions of this screen.  */
 173   int height, width;
 174
 175   /* Mask of things that cause the mouse to be grabbed.  */
 176   int grabbed;
 177
 178   /* Emacs bitmap-id of the default icon bitmap for this frame.
 179      Or -1 if none has been allocated yet.  */
 180   int icon_bitmap_id;
 181
 182   /* The root window of this screen.  */
 183   Window root_window;
 184
 185   /* The cursor to use for vertical scroll bars.  */
 186   Cursor vertical_scroll_bar_cursor;
 187
 188   /* X Resource data base */
 189   XrmDatabase xrdb;
 190
 191   /* A table of all the fonts we have already loaded.  */
 192   struct font_info *font_table;
 193
 194   /* The current capacity of x_font_table.  */
 195   int font_table_size;
 196
 197   /* Minimum width over all characters in all fonts in font_table.  */
 198   int smallest_char_width;
 199
 200   /* Minimum font height over all fonts in font_table.  */
 201   int smallest_font_height;
 202
 203   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 204   GC scratch_cursor_gc;
 205
 206   /* These variables describe the range of text currently shown in its
 207      mouse-face, together with the window they apply to.  As long as
 208      the mouse stays within this range, we need not redraw anything on
 209      its account.  Rows and columns are glyph matrix positions in
 210      MOUSE_FACE_WINDOW.  */
 211   int mouse_face_beg_row, mouse_face_beg_col;
 212   int mouse_face_beg_x, mouse_face_beg_y;
 213   int mouse_face_end_row, mouse_face_end_col;
 214   int mouse_face_end_x, mouse_face_end_y;
 215   int mouse_face_past_end;
 216   Lisp_Object mouse_face_window;
 217   int mouse_face_face_id;
 218   Lisp_Object mouse_face_overlay;
 219
 220   /* 1 if a mouse motion event came and we didn't handle it right away because
 221      gc was in progress.  */
 222   int mouse_face_deferred_gc;
 223
 224   /* FRAME and X, Y position of mouse when last checked for
 225      highlighting.  X and Y can be negative or out of range for the frame.  */
 226   struct frame *mouse_face_mouse_frame;
 227   int mouse_face_mouse_x, mouse_face_mouse_y;
 228
 229   /* Nonzero means defer mouse-motion highlighting.  */
 230   int mouse_face_defer;
 231
 232   /* Nonzero means that the mouse highlight should not be shown.  */
 233   int mouse_face_hidden;
 234
 235   int mouse_face_image_state;
 236
 237   char *x_id_name;
 238
 239   /* The number of fonts actually stored in x_font_table.
 240      font_table[n] is used and valid iff 0 <= n < n_fonts.  0 <=
 241      n_fonts <= font_table_size and font_table[i].name != 0.  */
 242   int n_fonts;
 243
 244   /* Pointer to bitmap records.  */
 245   struct x_bitmap_record *bitmaps;
 246
 247   /* Allocated size of bitmaps field.  */
 248   int bitmaps_size;
 249
 250   /* Last used bitmap index.  */
 251   int bitmaps_last;
 252
 253   /* Which modifier keys are on which modifier bits?
 254
 255      With each keystroke, X returns eight bits indicating which modifier
 256      keys were held down when the key was pressed.  The interpretation
 257      of the top five modifier bits depends on what keys are attached
 258      to them.  If the Meta_L and Meta_R keysyms are on mod5, then mod5
 259      is the meta bit.
 260
 261      meta_mod_mask is a mask containing the bits used for the meta key.
 262      It may have more than one bit set, if more than one modifier bit
 263      has meta keys on it.  Basically, if EVENT is a KeyPress event,
 264      the meta key is pressed if (EVENT.state & meta_mod_mask) != 0.
 265
 266      shift_lock_mask is LockMask if the XK_Shift_Lock keysym is on the
 267      lock modifier bit, or zero otherwise.  Non-alphabetic keys should
 268      only be affected by the lock modifier bit if XK_Shift_Lock is in
 269      use; XK_Caps_Lock should only affect alphabetic keys.  With this
 270      arrangement, the lock modifier should shift the character if
 271      (EVENT.state & shift_lock_mask) != 0.  */
 272   int meta_mod_mask, shift_lock_mask;
 273
 274   /* These are like meta_mod_mask, but for different modifiers.  */
 275   int alt_mod_mask, super_mod_mask, hyper_mod_mask;
 276
 277   /* Communication with window managers.  */
 278   Atom Xatom_wm_protocols;
 279
 280   /* Kinds of protocol things we may receive.  */
 281   Atom Xatom_wm_take_focus;
 282   Atom Xatom_wm_save_yourself;
 283   Atom Xatom_wm_delete_window;
 284
 285   /* Atom for indicating window state to the window manager.  */
 286   Atom Xatom_wm_change_state;
 287
 288   /* Other WM communication */
 289   Atom Xatom_wm_configure_denied; /* When our config request is denied */
 290   Atom Xatom_wm_window_moved;     /* When the WM moves us.  */
 291
 292   /* EditRes protocol */
 293   Atom Xatom_editres;
 294
 295   /* More atoms, which are selection types.  */
 296   Atom Xatom_CLIPBOARD, Xatom_TIMESTAMP, Xatom_TEXT, Xatom_DELETE,
 297   Xatom_COMPOUND_TEXT, Xatom_UTF8_STRING,
 298   Xatom_MULTIPLE, Xatom_INCR, Xatom_EMACS_TMP, Xatom_TARGETS, Xatom_NULL,
 299   Xatom_ATOM_PAIR;
 300
 301   /* More atoms for font properties.  The last three are private
 302      properties, see the comments in src/fontset.h.  */
 303   Atom Xatom_PIXEL_SIZE,
 304   Xatom_MULE_BASELINE_OFFSET, Xatom_MULE_RELATIVE_COMPOSE,
 305   Xatom_MULE_DEFAULT_ASCENT;
 306
 307   /* More atoms for Ghostscript support.  */
 308   Atom Xatom_DONE, Xatom_PAGE;
 309
 310   /* Atom used in toolkit scroll bar client messages.  */
 311   Atom Xatom_Scrollbar;
 312
 313 #ifdef MULTI_KBOARD
 314   struct kboard *kboard;
 315 #endif
 316   int cut_buffers_initialized; /* Whether we're sure they all exist */
 317
 318   /* The frame (if any) which has the X window that has keyboard focus.
 319      Zero if none.  This is examined by Ffocus_frame in xfns.c.  Note
 320      that a mere EnterNotify event can set this; if you need to know the
 321      last frame specified in a FocusIn or FocusOut event, use
 322      x_focus_event_frame.  */
 323   struct frame *x_focus_frame;
 324
 325   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 326      separate from x_focus_frame, because whether or not LeaveNotify
 327      events cause us to lose focus depends on whether or not we have
 328      received a FocusIn event for it.  */
 329   struct frame *x_focus_event_frame;
 330
 331   /* The frame which currently has the visual highlight, and should get
 332      keyboard input (other sorts of input have the frame encoded in the
 333      event).  It points to the X focus frame's selected window's
 334      frame.  It differs from x_focus_frame when we're using a global
 335      minibuffer.  */
 336   struct frame *x_highlight_frame;
 337
 338   /* The null pixel used for filling a character background with
 339      background color of a gc.  */
 340   Pixmap null_pixel;
 341
 342   /* The gray pixmap.  */
 343   Pixmap gray;
 344
 345   /* Cache of images.  */
 346   struct image_cache *image_cache;
 347
 348 #ifdef HAVE_X_I18N
 349   /* XIM (X Input method).  */
 350   XIM xim;
 351   XIMStyles *xim_styles;
 352 #endif
 353
 354   /* If non-null, a cache of the colors in the color map.  Don't
 355      use this directly, call x_color_cells instead.  */
 356   XColor *color_cells;
 357   int ncolor_cells;
 358 };
 359
 360 /* This checks to make sure we have a display.  */
 361 extern void check_x P_ ((void));
 362
 363 extern struct frame *x_window_to_frame P_ ((struct x_display_info *, int));
 364
 365 #if defined (USE_X_TOOLKIT) || defined (USE_GTK)
 366 extern struct frame *x_any_window_to_frame P_ ((struct x_display_info *, int));
 367 extern struct frame *x_non_menubar_window_to_frame P_ ((struct x_display_info *, int));
 368 extern struct frame *x_top_window_to_frame P_ ((struct x_display_info *, int));
 369 #endif
 370
 371 /* This is a chain of structures for all the X displays currently in use.  */
 372 extern struct x_display_info *x_display_list;
 373
 374 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 375    one for each element of x_display_list and in the same order.
 376    NAME is the name of the frame.
 377    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 378 extern Lisp_Object x_display_name_list;
 379
 380 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 381 extern Lisp_Object Vx_pixel_size_width_font_regexp;
 382
 383 /* A flag to control how to display unibyte 8-bit character.  */
 384 extern int unibyte_display_via_language_environment;
 385
 386 extern struct x_display_info *x_display_info_for_display P_ ((Display *));
 387 extern struct x_display_info *x_display_info_for_name P_ ((Lisp_Object));
 388
 389 extern struct x_display_info *x_term_init P_ ((Lisp_Object, char *, char *));
 390
 391 extern Lisp_Object x_list_fonts P_ ((struct frame *, Lisp_Object, int, int));
 392 extern void select_visual P_ ((struct x_display_info *));
 393 extern struct font_info *x_get_font_info P_ ((struct frame *f, int));
 394 extern struct font_info *x_load_font P_ ((struct frame *, char *, int));
 395 extern struct font_info *x_query_font P_ ((struct frame *, char *));
 396 extern void x_find_ccl_program P_ ((struct font_info *));
 397 \f
 398 /* Each X frame object points to its own struct x_output object
 399    in the output_data.x field.  The x_output structure contains
 400    the information that is specific to X windows.  */
 401
 402 struct x_output
 403 {
 404   /* Position of the X window (x and y offsets in root window).  */
 405   int left_pos;
 406   int top_pos;
 407
 408   /* Border width of the X window as known by the X window system.  */
 409   int border_width;
 410
 411   /* Size of the X window in pixels.  */
 412   int pixel_height, pixel_width;
 413
 414   /* Height of menu bar widget, in pixels.
 415      Zero if not using the X toolkit.
 416      When using the toolkit, this value is not meaningful
 417      if the menubar is turned off.  */
 418   int menubar_height;
 419
 420   /* Height of tool bar widget, in pixels.
 421      Zero if not using an external tool bar.  */
 422   int toolbar_height;
 423
 424   /* Height of a line, in pixels.  */
 425   int line_height;
 426
 427   /* The tiled border used when the mouse is out of the frame.  */
 428   Pixmap border_tile;
 429
 430   /* Here are the Graphics Contexts for the default font.  */
 431   GC normal_gc;                         /* Normal video */
 432   GC reverse_gc;                        /* Reverse video */
 433   GC cursor_gc;                         /* cursor drawing */
 434
 435   /* Width of the internal border.  This is a line of background color
 436      just inside the window's border.  When the frame is selected,
 437      a highlighting is displayed inside the internal border.  */
 438   int internal_border_width;
 439
 440   /* The X window used for this frame.
 441      May be zero while the frame object is being created
 442      and the X window has not yet been created.  */
 443   Window window_desc;
 444
 445   /* The X window used for the bitmap icon;
 446      or 0 if we don't have a bitmap icon.  */
 447   Window icon_desc;
 448
 449   /* The X window that is the parent of this X window.
 450      Usually this is a window that was made by the window manager,
 451      but it can be the root window, and it can be explicitly specified
 452      (see the explicit_parent field, below).  */
 453   Window parent_desc;
 454
 455 #ifdef USE_X_TOOLKIT
 456   /* The widget of this screen.  This is the window of a "shell" widget.  */
 457   Widget widget;
 458   /* The XmPanedWindows...  */
 459   Widget column_widget;
 460   /* The widget of the edit portion of this screen; the window in
 461      "window_desc" is inside of this.  */
 462   Widget edit_widget;
 463
 464   Widget menubar_widget;
 465 #endif
 466
 467 #ifdef USE_GTK
 468   /* The widget of this screen.  This is the window of a top widget.  */
 469   GtkWidget *widget;
 470   /* The widget of the edit portion of this screen; the window in
 471      "window_desc" is inside of this.  */
 472   GtkWidget *edit_widget;
 473   /* The widget used for laying out widgets vertically.  */
 474   GtkWidget *vbox_widget;
 475   /* The menubar in this frame.  */
 476   GtkWidget *menubar_widget;
 477   /* The tool bar in this frame  */
 478   GtkWidget *toolbar_widget;
 479   /* The handle box that makes the tool bar detachable.  */
 480   GtkWidget *handlebox_widget;
 481
 482   /* The last size hints set.  */
 483   GdkGeometry size_hints;
 484   long hint_flags;
 485 #endif
 486
 487   /* If >=0, a bitmap index.  The indicated bitmap is used for the
 488      icon. */
 489   int icon_bitmap;
 490
 491   /* Default ASCII font of this frame.  */
 492   XFontStruct *font;
 493
 494   /* The baseline offset of the default ASCII font.  */
 495   int baseline_offset;
 496
 497   /* If a fontset is specified for this frame instead of font, this
 498      value contains an ID of the fontset, else -1.  */
 499   int fontset;
 500
 501   /* Pixel values used for various purposes.
 502      border_pixel may be -1 meaning use a gray tile.  */
 503   unsigned long background_pixel;
 504   unsigned long foreground_pixel;
 505   unsigned long cursor_pixel;
 506   unsigned long border_pixel;
 507   unsigned long mouse_pixel;
 508   unsigned long cursor_foreground_pixel;
 509
 510   /* Foreground color for scroll bars.  A value of -1 means use the
 511      default (black for non-toolkit scroll bars).  */
 512   unsigned long scroll_bar_foreground_pixel;
 513
 514   /* Background color for scroll bars.  A value of -1 means use the
 515      default (background color of the frame for non-toolkit scroll
 516      bars).  */
 517   unsigned long scroll_bar_background_pixel;
 518
 519   /* Top and bottom shadow colors for 3d toolkit scrollbars.  -1 means
 520      let the scroll compute them itself.  */
 521   unsigned long scroll_bar_top_shadow_pixel;
 522   unsigned long scroll_bar_bottom_shadow_pixel;
 523
 524   /* Descriptor for the cursor in use for this window.  */
 525   Cursor text_cursor;
 526   Cursor nontext_cursor;
 527   Cursor modeline_cursor;
 528   Cursor cross_cursor;
 529   Cursor hourglass_cursor;
 530   Cursor horizontal_drag_cursor;
 531
 532   /* Window whose cursor is hourglass_cursor.  This window is temporarily
 533      mapped to display an hourglass cursor.  */
 534   Window hourglass_window;
 535
 536   /* Non-zero means hourglass cursor is currently displayed.  */
 537   unsigned hourglass_p : 1;
 538
 539   /* Flag to set when the X window needs to be completely repainted.  */
 540   int needs_exposure;
 541
 542   /* These are the current window manager hints.  It seems that
 543      XSetWMHints, when presented with an unset bit in the `flags'
 544      member of the hints structure, does not leave the corresponding
 545      attribute unchanged; rather, it resets that attribute to its
 546      default value.  For example, unless you set the `icon_pixmap'
 547      field and the `IconPixmapHint' bit, XSetWMHints will forget what
 548      your icon pixmap was.  This is rather troublesome, since some of
 549      the members (for example, `input' and `icon_pixmap') want to stay
 550      the same throughout the execution of Emacs.  So, we keep this
 551      structure around, just leaving values in it and adding new bits
 552      to the mask as we go.  */
 553   XWMHints wm_hints;
 554
 555   /* The size of the extra width currently allotted for vertical
 556      scroll bars, in pixels.  */
 557   int vertical_scroll_bar_extra;
 558
 559   /* The extra width currently allotted for the areas in which
 560      truncation marks, continuation marks, and overlay arrows are
 561      displayed.  */
 562   int left_fringe_width, right_fringe_width;
 563   int fringe_cols, fringes_extra;
 564
 565   /* This is the gravity value for the specified window position.  */
 566   int win_gravity;
 567
 568   /* The geometry flags for this window.  */
 569   int size_hint_flags;
 570
 571   /* This is the Emacs structure for the X display this frame is on.  */
 572   struct x_display_info *display_info;
 573
 574   /* This is a button event that wants to activate the menubar.
 575      We save it here until the command loop gets to think about it.  */
 576   XEvent *saved_menu_event;
 577
 578   /* This is the widget id used for this frame's menubar in lwlib.  */
 579 #ifdef USE_X_TOOLKIT
 580   int id;
 581 #endif
 582
 583   /* Nonzero means our parent is another application's window
 584      and was explicitly specified.  */
 585   char explicit_parent;
 586
 587   /* Nonzero means tried already to make this frame visible.  */
 588   char asked_for_visible;
 589
 590   /* Nonzero if this frame was ever previously visible.  */
 591   char has_been_visible;
 592
 593 #ifdef HAVE_X_I18N
 594   /* Input context (currently, this means Compose key handler setup).  */
 595   XIC xic;
 596   XIMStyle xic_style;
 597   XFontSet xic_xfs;
 598 #endif
 599
 600   /* Relief GCs, colors etc.  */
 601   struct relief
 602   {
 603     GC gc;
 604     unsigned long pixel;
 605     int allocated_p;
 606   }
 607   black_relief, white_relief;
 608
 609   /* The background for which the above relief GCs were set up.
 610      They are changed only when a different background is involved.  */
 611   unsigned long relief_background;
 612
 613   /* Xt waits for a ConfigureNotify event from the window manager in
 614      EmacsFrameSetCharSize when the shell widget is resized.  For some
 615      window managers like fvwm2 2.2.5 and KDE 2.1 this event doesn't
 616      arrive for an unknown reason and Emacs hangs in Xt.  If this is
 617      zero, tell Xt not to wait.  */
 618   int wait_for_wm;
 619
 620   /* See enum below */
 621   int want_fullscreen;
 622
 623   /* This many pixels are the difference between the outer window (i.e. the
 624      left of the window manager decoration) and FRAME_X_WINDOW. */
 625   int x_pixels_diff;
 626
 627   /* This many pixels are the difference between the outer window (i.e. the
 628      top of the window manager titlebar) and FRAME_X_WINDOW. */
 629   int y_pixels_diff;
 630
 631   /* As x_pixels_diff, but to FRAME_OUTER_WINDOW.  For some reason the
 632      two might differ by a pixel, depending on WM */
 633   int x_pixels_outer_diff;
 634
 635   /* As y_pixels_diff, but to FRAME_OUTER_WINDOW.  In the toolkit version,
 636      these may differ because this does not take into account possible
 637      menubar.  y_pixels_diff is with menubar height included */
 638   int y_pixels_outer_diff;
 639
 640   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 641      frame, or IMPLICIT if we received an EnterNotify.
 642      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 643   int focus_state;
 644 };
 645
 646 enum
 647 {
 648   /* Values used as a bit mask, BOTH == WIDTH | HEIGHT.  */
 649   FULLSCREEN_NONE       = 0,
 650   FULLSCREEN_WIDTH      = 1,
 651   FULLSCREEN_HEIGHT     = 2,
 652   FULLSCREEN_BOTH       = 3,
 653   FULLSCREEN_WAIT       = 4,
 654   FULLSCREEN_MOVE_WAIT  = 8,
 655 };
 656
 657 enum
 658 {
 659   /* Values for focus_state, used as bit mask.
 660      EXPLICIT means we received a FocusIn for the frame and know it has
 661      the focus.  IMPLICIT means we recevied an EnterNotify and the frame
 662      may have the focus if no window manager is running.
 663      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 664   FOCUS_NONE     = 0,
 665   FOCUS_IMPLICIT = 1,
 666   FOCUS_EXPLICIT = 2
 667 };
 668
 669
 670 /* Return the X window used for displaying data in frame F.  */
 671 #define FRAME_X_WINDOW(f) ((f)->output_data.x->window_desc)
 672
 673 /* Return the outermost X window associated with the frame F.  */
 674 #ifdef USE_X_TOOLKIT
 675 #define FRAME_OUTER_WINDOW(f) ((f)->output_data.x->widget ?             \
 676                                XtWindow ((f)->output_data.x->widget) :  \
 677                                FRAME_X_WINDOW (f))
 678 #else
 679 #ifdef USE_GTK
 680 #define GTK_WIDGET_TO_X_WIN(w) \
 681   ((w) && (w)->window ? GDK_WINDOW_XWINDOW ((w)->window) : 0)
 682
 683 #define FRAME_GTK_OUTER_WIDGET(f) ((f)->output_data.x->widget)
 684 #define FRAME_GTK_WIDGET(f) ((f)->output_data.x->edit_widget)
 685 #define FRAME_OUTER_WINDOW(f)                                   \
 686        (FRAME_GTK_OUTER_WIDGET (f) ?                            \
 687         GTK_WIDGET_TO_X_WIN (FRAME_GTK_OUTER_WIDGET (f)) :      \
 688          FRAME_X_WINDOW (f))
 689
 690 #else /* !USE_GTK */
 691 #define FRAME_OUTER_WINDOW(f) (FRAME_X_WINDOW (f))
 692 #endif /* !USE_GTK */
 693 #endif
 694
 695
 696 #define FRAME_FONT(f) ((f)->output_data.x->font)
 697 #define FRAME_FONTSET(f) ((f)->output_data.x->fontset)
 698 #define FRAME_INTERNAL_BORDER_WIDTH(f) ((f)->output_data.x->internal_border_width)
 699 #define FRAME_MENUBAR_HEIGHT(f) ((f)->output_data.x->menubar_height)
 700 #define FRAME_TOOLBAR_HEIGHT(f) ((f)->output_data.x->toolbar_height)
 701 #define FRAME_LINE_HEIGHT(f) ((f)->output_data.x->line_height)
 702
 703 /* Width of the default font of frame F.  Must be defined by each
 704    terminal specific header.  */
 705 #define FRAME_DEFAULT_FONT_WIDTH(F)     FONT_WIDTH (FRAME_FONT (F))
 706
 707 /* This gives the x_display_info structure for the display F is on.  */
 708 #define FRAME_X_DISPLAY_INFO(f) ((f)->output_data.x->display_info)
 709
 710 /* This is the `Display *' which frame F is on.  */
 711 #define FRAME_X_DISPLAY(f) (FRAME_X_DISPLAY_INFO (f)->display)
 712
 713 /* This is the `Screen *' which frame F is on.  */
 714 #define FRAME_X_SCREEN(f) (FRAME_X_DISPLAY_INFO (f)->screen)
 715 #define FRAME_X_SCREEN_NUMBER(f) XScreenNumberOfScreen (FRAME_X_SCREEN (f))
 716
 717 /* This is the Visual which frame F is on.  */
 718 #define FRAME_X_VISUAL(f) FRAME_X_DISPLAY_INFO (f)->visual
 719
 720 /* This is the Colormap which frame F uses.  */
 721 #define FRAME_X_COLORMAP(f) FRAME_X_DISPLAY_INFO (f)->cmap
 722
 723 /* This is the 'font_info *' which frame F has.  */
 724 #define FRAME_X_FONT_TABLE(f) (FRAME_X_DISPLAY_INFO (f)->font_table)
 725
 726 /* These two really ought to be called FRAME_PIXEL_{WIDTH,HEIGHT}.  */
 727 #define PIXEL_WIDTH(f) ((f)->output_data.x->pixel_width)
 728 #define PIXEL_HEIGHT(f) ((f)->output_data.x->pixel_height)
 729
 730 /* The difference in pixels between the top left corner of the
 731    Emacs window (including possible window manager decorations)
 732    and FRAME_X_WINDOW (f).  */
 733 #define FRAME_OUTER_TO_INNER_DIFF_X(f) \
 734      ((f)->output_data.x->x_pixels_outer_diff)
 735 #define FRAME_OUTER_TO_INNER_DIFF_Y(f)          \
 736      ((f)->output_data.x->y_pixels_outer_diff   \
 737       + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f))
 738
 739
 740 #define FRAME_XIC(f) ((f)->output_data.x->xic)
 741 #define FRAME_X_XIM(f) (FRAME_X_DISPLAY_INFO (f)->xim)
 742 #define FRAME_X_XIM_STYLES(f) (FRAME_X_DISPLAY_INFO (f)->xim_styles)
 743 #define FRAME_XIC_STYLE(f) ((f)->output_data.x->xic_style)
 744 #define FRAME_XIC_FONTSET(f) ((f)->output_data.x->xic_xfs)
 745
 746 /* Value is the smallest width of any character in any font on frame F.  */
 747
 748 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 749      FRAME_X_DISPLAY_INFO(F)->smallest_char_width
 750
 751 /* Value is the smallest height of any font on frame F.  */
 752
 753 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 754      FRAME_X_DISPLAY_INFO(F)->smallest_font_height
 755
 756 /* Return a pointer to the image cache of frame F.  */
 757
 758 #define FRAME_X_IMAGE_CACHE(F) FRAME_X_DISPLAY_INFO ((F))->image_cache
 759
 760 \f
 761 /* Total width of fringes reserved for drawing truncation bitmaps,
 762    continuation bitmaps and alike.  The width is in canonical char
 763    units of the frame.  This must currently be the case because window
 764    sizes aren't pixel values.  If it weren't the case, we wouldn't be
 765    able to split windows horizontally nicely.  */
 766
 767 #define FRAME_X_FRINGE_COLS(F)  ((F)->output_data.x->fringe_cols)
 768
 769 /* Total width of fringes in pixels.  */
 770
 771 #define FRAME_X_FRINGE_WIDTH(F) ((F)->output_data.x->fringes_extra)
 772
 773 /* Pixel-width of the left and right fringe.  */
 774
 775 #define FRAME_X_LEFT_FRINGE_WIDTH(F) ((F)->output_data.x->left_fringe_width)
 776 #define FRAME_X_RIGHT_FRINGE_WIDTH(F) ((F)->output_data.x->right_fringe_width)
 777
 778
 779 \f
 780 /* X-specific scroll bar stuff.  */
 781
 782 /* We represent scroll bars as lisp vectors.  This allows us to place
 783    references to them in windows without worrying about whether we'll
 784    end up with windows referring to dead scroll bars; the garbage
 785    collector will free it when its time comes.
 786
 787    We use struct scroll_bar as a template for accessing fields of the
 788    vector.  */
 789
 790 struct scroll_bar
 791 {
 792   /* These fields are shared by all vectors.  */
 793   EMACS_INT size_from_Lisp_Vector_struct;
 794   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 795
 796   /* The window we're a scroll bar for.  */
 797   Lisp_Object window;
 798
 799   /* The next and previous in the chain of scroll bars in this frame.  */
 800   Lisp_Object next, prev;
 801
 802   /* The X window representing this scroll bar.  Since this is a full
 803      32-bit quantity, we store it split into two 32-bit values.  */
 804   Lisp_Object x_window_low, x_window_high;
 805
 806   /* The position and size of the scroll bar in pixels, relative to the
 807      frame.  */
 808   Lisp_Object top, left, width, height;
 809
 810   /* The starting and ending positions of the handle, relative to the
 811      handle area (i.e. zero is the top position, not
 812      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 813      hasn't been drawn yet.
 814
 815      These are not actually the locations where the beginning and end
 816      are drawn; in order to keep handles from becoming invisible when
 817      editing large files, we establish a minimum height by always
 818      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 819      where they would be normally; the bottom and top are in a
 820      different co-ordinate system.  */
 821   Lisp_Object start, end;
 822
 823   /* If the scroll bar handle is currently being dragged by the user,
 824      this is the number of pixels from the top of the handle to the
 825      place where the user grabbed it.  If the handle isn't currently
 826      being dragged, this is Qnil.  */
 827   Lisp_Object dragging;
 828 };
 829
 830 /* The number of elements a vector holding a struct scroll_bar needs.  */
 831 #define SCROLL_BAR_VEC_SIZE                                     \
 832   ((sizeof (struct scroll_bar)                                  \
 833     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 834    / sizeof (Lisp_Object))
 835
 836 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 837 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 838
 839
 840 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 841 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 842
 843 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 844 #define SCROLL_BAR_UNPACK(low, high, int32) \
 845   (XSETINT ((low),   (int32)        & 0xffff), \
 846    XSETINT ((high), ((int32) >> 16) & 0xffff))
 847
 848
 849 /* Extract the X window id of the scroll bar from a struct scroll_bar.  */
 850 #define SCROLL_BAR_X_WINDOW(ptr) \
 851   ((Window) SCROLL_BAR_PACK ((ptr)->x_window_low, (ptr)->x_window_high))
 852
 853 /* Store a window id in a struct scroll_bar.  */
 854 #define SET_SCROLL_BAR_X_WINDOW(ptr, id) \
 855   (SCROLL_BAR_UNPACK ((ptr)->x_window_low, (ptr)->x_window_high, (int) id))
 856
 857 /* Extract the X widget of the scroll bar from a struct scroll_bar.
 858    XtWindowToWidget should be fast enough since Xt uses a hash table
 859    to map windows to widgets.  */
 860
 861 #define SCROLL_BAR_X_WIDGET(dpy, ptr) \
 862   XtWindowToWidget (dpy, SCROLL_BAR_X_WINDOW (ptr))
 863
 864 /* Store a widget id in a struct scroll_bar.  */
 865
 866 #define SET_SCROLL_BAR_X_WIDGET(ptr, w)         \
 867   do {                                          \
 868     Window window = XtWindow (w);               \
 869     SET_SCROLL_BAR_X_WINDOW (ptr, window);      \
 870 } while (0)
 871
 872
 873 /* Return the inside width of a vertical scroll bar, given the outside
 874    width.  */
 875 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f, width) \
 876   ((width) \
 877    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 878    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 879    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 880
 881 /* Return the length of the rectangle within which the top of the
 882    handle must stay.  This isn't equivalent to the inside height,
 883    because the scroll bar handle has a minimum height.
 884
 885    This is the real range of motion for the scroll bar, so when we're
 886    scaling buffer positions to scroll bar positions, we use this, not
 887    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 888 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f, height) \
 889   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 890
 891 /* Return the inside height of vertical scroll bar, given the outside
 892    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 893 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f, height) \
 894   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 895
 896
 897 /* Border widths for scroll bars.
 898
 899    Scroll bar windows don't have any X borders; their border width is
 900    set to zero, and we redraw borders ourselves.  This makes the code
 901    a bit cleaner, since we don't have to convert between outside width
 902    (used when relating to the rest of the screen) and inside width
 903    (used when sizing and drawing the scroll bar window itself).
 904
 905    The handle moves up and down/back and forth in a rectangle inset
 906    from the edges of the scroll bar.  These are widths by which we
 907    inset the handle boundaries from the scroll bar edges.  */
 908 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (2)
 909 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (2)
 910 #define VERTICAL_SCROLL_BAR_TOP_BORDER (2)
 911 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (2)
 912
 913 /* Minimum lengths for scroll bar handles, in pixels.  */
 914 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (5)
 915
 916 /* Trimming off a few pixels from each side prevents
 917    text from glomming up against the scroll bar */
 918 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 919
 920 \f
 921 /* Manipulating pixel sizes and character sizes.
 922    Knowledge of which factors affect the overall size of the window should
 923    be hidden in these macros, if that's possible.
 924
 925    Return the upper/left pixel position of the character cell on frame F
 926    at ROW/COL.  */
 927 #define CHAR_TO_PIXEL_ROW(f, row) \
 928   ((f)->output_data.x->internal_border_width \
 929    + (row) * (f)->output_data.x->line_height)
 930 #define CHAR_TO_PIXEL_COL(f, col) \
 931   ((f)->output_data.x->internal_border_width \
 932    + (col) * FONT_WIDTH ((f)->output_data.x->font))
 933
 934 /* Return the pixel width/height of frame F if it has
 935    WIDTH columns/HEIGHT rows.  */
 936 #define CHAR_TO_PIXEL_WIDTH(f, width) \
 937   (CHAR_TO_PIXEL_COL (f, width) \
 938    + (f)->output_data.x->vertical_scroll_bar_extra \
 939    + (f)->output_data.x->fringes_extra \
 940    + (f)->output_data.x->internal_border_width)
 941 #define CHAR_TO_PIXEL_HEIGHT(f, height) \
 942   (CHAR_TO_PIXEL_ROW (f, height) \
 943    + (f)->output_data.x->internal_border_width)
 944
 945
 946 /* Return the row/column (zero-based) of the character cell containing
 947    the pixel on FRAME at ROW/COL.  */
 948 #define PIXEL_TO_CHAR_ROW(f, row) \
 949   (((row) - (f)->output_data.x->internal_border_width) \
 950    / (f)->output_data.x->line_height)
 951 #define PIXEL_TO_CHAR_COL(f, col) \
 952   (((col) - (f)->output_data.x->internal_border_width) \
 953    / FONT_WIDTH ((f)->output_data.x->font))
 954
 955 /* How many columns/rows of text can we fit in WIDTH/HEIGHT pixels on
 956    frame F?  */
 957 #define PIXEL_TO_CHAR_WIDTH(f, width) \
 958   (PIXEL_TO_CHAR_COL (f, ((width) \
 959                           - (f)->output_data.x->internal_border_width \
 960                           - (f)->output_data.x->fringes_extra \
 961                           - (f)->output_data.x->vertical_scroll_bar_extra)))
 962 #define PIXEL_TO_CHAR_HEIGHT(f, height) \
 963   (PIXEL_TO_CHAR_ROW (f, ((height) \
 964                           - (f)->output_data.x->internal_border_width)))
 965
 966 \f
 967 /* If a struct input_event has a kind which is SELECTION_REQUEST_EVENT
 968    or SELECTION_CLEAR_EVENT, then its contents are really described
 969    by this structure.  */
 970
 971 /* For an event of kind SELECTION_REQUEST_EVENT,
 972    this structure really describes the contents.
 973    **Don't make this struct longer!**
 974    If it overlaps the frame_or_window field of struct input_event,
 975    that will cause GC to crash.  */
 976 struct selection_input_event
 977 {
 978   int kind;
 979   Display *display;
 980   /* We spell it with an "o" here because X does.  */
 981   Window requestor;
 982   Atom selection, target, property;
 983   Time time;
 984 };
 985
 986 #define SELECTION_EVENT_DISPLAY(eventp) \
 987   (((struct selection_input_event *) (eventp))->display)
 988 /* We spell it with an "o" here because X does.  */
 989 #define SELECTION_EVENT_REQUESTOR(eventp)       \
 990   (((struct selection_input_event *) (eventp))->requestor)
 991 #define SELECTION_EVENT_SELECTION(eventp)       \
 992   (((struct selection_input_event *) (eventp))->selection)
 993 #define SELECTION_EVENT_TARGET(eventp)  \
 994   (((struct selection_input_event *) (eventp))->target)
 995 #define SELECTION_EVENT_PROPERTY(eventp)        \
 996   (((struct selection_input_event *) (eventp))->property)
 997 #define SELECTION_EVENT_TIME(eventp)    \
 998   (((struct selection_input_event *) (eventp))->time)
 999
1000 \f
1001 struct window;
1002 struct glyph_matrix;
1003 struct frame;
1004 struct input_event;
1005 struct face;
1006 struct image;
1007
1008 /* From xselect.c.  */
1009
1010 void x_handle_selection_notify P_ ((XSelectionEvent *));
1011 void x_handle_property_notify P_ ((XPropertyEvent *));
1012
1013 /* From xfns.c.  */
1014
1015 Lisp_Object display_x_get_resource P_ ((struct x_display_info *,
1016                                         Lisp_Object, Lisp_Object,
1017                                         Lisp_Object, Lisp_Object));
1018 struct frame *check_x_frame P_ ((Lisp_Object));
1019 EXFUN (Fx_display_color_p, 1);
1020 EXFUN (Fx_display_grayscale_p, 1);
1021 int image_ascent P_ ((struct image *, struct face *));
1022 extern void x_free_gcs P_ ((struct frame *));
1023
1024 /* From xrdb.c.  */
1025
1026 char *x_get_string_resource P_ ((XrmDatabase, char *, char *));
1027 char *x_get_customization_string P_ ((XrmDatabase, char *, char *));
1028 XrmDatabase x_load_resources P_ ((Display *, char *, char *, char *));
1029 int x_get_resource P_ ((XrmDatabase, char *, char *,
1030                         XrmRepresentation, XrmValue *));
1031 void x_delete_display P_ ((struct x_display_info *));
1032 void x_make_frame_visible P_ ((struct frame *));
1033 void x_iconify_frame P_ ((struct frame *));
1034 void x_wm_set_size_hint P_ ((struct frame *, long, int));
1035 void x_set_offset P_ ((struct frame *, int, int, int));
1036 void x_wm_set_icon_position P_ ((struct frame *, int, int));
1037 int x_catch_errors P_ ((Display *));
1038 int x_had_errors_p P_ ((Display *));
1039 void x_uncatch_errors P_ ((Display *, int));
1040 void x_check_errors P_ ((Display *, char *));
1041 int x_text_icon P_ ((struct frame *, char *));
1042 int x_bitmap_icon P_ ((struct frame *, Lisp_Object));
1043 void x_set_window_size P_ ((struct frame *, int, int, int));
1044 void x_wm_set_window_state P_ ((struct frame *, int));
1045 int x_alloc_nearest_color P_ ((struct frame *, Colormap, XColor *));
1046
1047 extern void pixel_to_glyph_coords P_ ((struct frame *, int, int,
1048                                        int *, int *, XRectangle *, int));
1049
1050 /* Defined in xterm.c */
1051
1052 extern void cancel_mouse_face P_ ((struct frame *));
1053 extern void x_scroll_bar_clear P_ ((struct frame *));
1054 extern void x_start_queuing_selection_requests P_ ((Display *));
1055 extern void x_stop_queuing_selection_requests P_ ((Display *));
1056 extern void x_update_cursor P_ ((struct frame *, int));
1057 extern int x_text_icon P_ ((struct frame *, char *));
1058 extern int x_bitmap_icon P_ ((struct frame *, Lisp_Object));
1059 extern int x_catch_errors P_ ((Display *));
1060 extern void x_check_errors P_ ((Display *, char *));
1061 extern int x_had_errors_p P_ ((Display *));
1062 extern void x_uncatch_errors P_ ((Display *, int));
1063 extern Lisp_Object x_new_font P_ ((struct frame *, char *));
1064 extern Lisp_Object x_new_fontset P_ ((struct frame *, char *));
1065 extern void x_compute_fringe_widths P_ ((struct frame *, int));
1066 extern void x_set_offset P_ ((struct frame *, int, int, int));
1067 extern void x_set_window_size P_ ((struct frame *, int, int, int));
1068 extern void x_set_mouse_position P_ ((struct frame *, int, int));
1069 extern void x_set_mouse_pixel_position P_ ((struct frame *, int, int));
1070 extern void x_raise_frame P_ ((struct frame *));
1071 extern void x_lower_frame P_ ((struct frame *));
1072 extern void x_make_frame_visible P_ ((struct frame *));
1073 extern void x_make_frame_invisible P_ ((struct frame *));
1074 extern void x_iconify_frame P_ ((struct frame *));
1075 extern void x_free_frame_resources P_ ((struct frame *));
1076 extern void x_destroy_window P_ ((struct frame *));
1077 extern void x_wm_set_size_hint P_ ((struct frame *, long, int));
1078 extern void x_wm_set_window_state P_ ((struct frame *, int));
1079 extern void x_wm_set_icon_pixmap P_ ((struct frame *, int));
1080 extern void x_wm_set_icon_position P_ ((struct frame *, int, int));
1081 extern void x_delete_display P_ ((struct x_display_info *));
1082 extern void x_initialize P_ ((void));
1083 extern void x_display_cursor P_ ((struct window *, int, int, int, int, int));
1084 extern unsigned long x_copy_color P_ ((struct frame *, unsigned long));
1085 #ifdef USE_X_TOOLKIT
1086 extern XtAppContext Xt_app_con;
1087 #endif
1088 extern void x_query_colors P_ ((struct frame *f, XColor *, int));
1089 extern void x_query_color P_ ((struct frame *f, XColor *));
1090 extern void x_clear_area P_ ((Display *, Window, int, int, int, int, int));
1091
1092 extern void x_fullscreen_adjust P_ ((struct frame *f, int *, int *,
1093                                      int *, int *));
1094
1095 extern int x_dispatch_event P_ ((XEvent *, Display *));
1096
1097 /* Defined in xselect.c */
1098
1099 extern void x_handle_property_notify P_ ((XPropertyEvent *));
1100 extern void x_handle_selection_notify P_ ((XSelectionEvent *));
1101 extern void x_handle_selection_request P_ ((struct input_event *));
1102 extern void x_handle_selection_clear P_ ((struct input_event *));
1103 extern void x_clear_frame_selections P_ ((struct frame *));
1104
1105 /* Defined in xfns.c */
1106
1107 extern int have_menus_p P_ ((void));
1108 extern int x_bitmap_height P_ ((struct frame *, int));
1109 extern int x_bitmap_width P_ ((struct frame *, int));
1110 extern int x_bitmap_pixmap P_ ((struct frame *, int));
1111 extern void x_reference_bitmap P_ ((struct frame *, int));
1112 extern int x_create_bitmap_from_data P_ ((struct frame *, char *,
1113                                           unsigned int, unsigned int));
1114 extern int x_create_bitmap_from_file P_ ((struct frame *, Lisp_Object));
1115 extern void x_destroy_bitmap P_ ((struct frame *, int));
1116 extern void x_set_frame_parameters P_ ((struct frame *, Lisp_Object));
1117 extern void x_real_positions P_ ((struct frame *, int *, int *));
1118 extern void x_report_frame_params P_ ((struct frame *, Lisp_Object *));
1119 extern int defined_color P_ ((struct frame *, char *, XColor *, int));
1120 extern void x_set_border_pixel P_ ((struct frame *, int));
1121 extern void x_set_menu_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
1122 extern unsigned char * x_encode_text P_ ((Lisp_Object, Lisp_Object, int,
1123                                           int *, int *));
1124 extern void x_implicitly_set_name P_ ((struct frame *, Lisp_Object, Lisp_Object));
1125 extern void create_frame_xic P_ ((struct frame *));
1126 extern void destroy_frame_xic P_ ((struct frame *));
1127 extern void xic_set_preeditarea P_ ((struct window *, int, int));
1128 extern void xic_set_statusarea P_ ((struct frame *));
1129 extern void xic_set_xfontset P_ ((struct frame *, char *));
1130 extern int x_pixel_width P_ ((struct frame *));
1131 extern int x_pixel_height P_ ((struct frame *));
1132 extern int x_char_width P_ ((struct frame *));
1133 extern int x_char_height P_ ((struct frame *));
1134 extern int x_screen_planes P_ ((struct frame *));
1135 extern void x_sync P_ ((struct frame *));
1136 extern int x_defined_color P_ ((struct frame *, char *, XColor *, int));
1137 #ifdef HAVE_X_I18N
1138 extern void free_frame_xic P_ ((struct frame *));
1139 #endif
1140 extern void x_set_tool_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
1141
1142 /* Defined in xfaces.c */
1143
1144 extern int frame_update_line_height P_ ((struct frame *));
1145 extern int compute_glyph_face P_ ((struct frame *, int, int));
1146 extern int compute_glyph_face_1 P_ ((struct frame *, Lisp_Object, int));
1147 extern void x_free_dpy_colors P_ ((Display *, Screen *, Colormap,
1148                                    unsigned long *, int));
1149
1150 /* Defined in xmenu.c */
1151
1152 extern void x_activate_menubar P_ ((struct frame *));
1153 extern int popup_activated P_ ((void));
1154 extern void initialize_frame_menubar P_ ((struct frame *));
1155
1156 /* Defined in widget.c */
1157
1158 #ifdef USE_X_TOOLKIT
1159 extern void widget_store_internal_border P_ ((Widget));
1160 #endif
1161
1162 /* Defined in xsmfns.c */
1163 #ifdef HAVE_X_SM
1164 extern void x_session_initialize P_ ((void));
1165 extern int x_session_check_input P_ ((struct input_event *bufp,
1166                                       int *numchars));
1167 extern int x_session_have_connection P_ ((void));
1168 #endif