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 #define FONT_DESCENT(f) ((f)->descent)
 108
 109 /* The mask of events that text windows always want to receive.  This
 110    includes mouse movement events, since handling the mouse-font text property
 111    means that we must track mouse motion all the time.  */
 112
 113 #define STANDARD_EVENT_SET      \
 114   (KeyPressMask                 \
 115    | ExposureMask               \
 116    | ButtonPressMask            \
 117    | ButtonReleaseMask          \
 118    | PointerMotionMask          \
 119    | StructureNotifyMask        \
 120    | FocusChangeMask            \
 121    | LeaveWindowMask            \
 122    | EnterWindowMask            \
 123    | VisibilityChangeMask)
 124
 125 /* Structure recording X pixmap and reference count.
 126    If REFCOUNT is 0 then this record is free to be reused.  */
 127
 128 struct x_bitmap_record
 129 {
 130   Pixmap pixmap;
 131   char *file;
 132   int refcount;
 133   /* Record some info about this pixmap.  */
 134   int height, width, depth;
 135 };
 136 \f
 137 /* For each X display, we have a structure that records
 138    information about it.  */
 139
 140 struct x_display_info
 141 {
 142   /* Chain of all x_display_info structures.  */
 143   struct x_display_info *next;
 144
 145   /* Connection number (normally a file descriptor number).  */
 146   int connection;
 147
 148   /* This says how to access this display in Xlib.  */
 149   Display *display;
 150
 151   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).
 152      The same cons cell also appears in x_display_name_list.  */
 153   Lisp_Object name_list_element;
 154
 155   /* Number of frames that are on this display.  */
 156   int reference_count;
 157
 158   /* The Screen this connection is connected to.  */
 159   Screen *screen;
 160
 161   /* Dots per inch of the screen.  */
 162   double resx, resy;
 163
 164   /* The Visual being used for this display.  */
 165   Visual *visual;
 166
 167   /* The colormap being used.  */
 168   Colormap cmap;
 169
 170   /* Number of panes on this screen.  */
 171   int n_planes;
 172
 173   /* Dimensions of this screen.  */
 174   int height, width;
 175
 176   /* Mask of things that cause the mouse to be grabbed.  */
 177   int grabbed;
 178
 179   /* Emacs bitmap-id of the default icon bitmap for this frame.
 180      Or -1 if none has been allocated yet.  */
 181   int icon_bitmap_id;
 182
 183   /* The root window of this screen.  */
 184   Window root_window;
 185
 186   /* The cursor to use for vertical scroll bars.  */
 187   Cursor vertical_scroll_bar_cursor;
 188
 189   /* X Resource data base */
 190   XrmDatabase xrdb;
 191
 192   /* A table of all the fonts we have already loaded.  */
 193   struct font_info *font_table;
 194
 195   /* The current capacity of x_font_table.  */
 196   int font_table_size;
 197
 198   /* Minimum width over all characters in all fonts in font_table.  */
 199   int smallest_char_width;
 200
 201   /* Minimum font height over all fonts in font_table.  */
 202   int smallest_font_height;
 203
 204   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 205   GC scratch_cursor_gc;
 206
 207   /* These variables describe the range of text currently shown in its
 208      mouse-face, together with the window they apply to.  As long as
 209      the mouse stays within this range, we need not redraw anything on
 210      its account.  Rows and columns are glyph matrix positions in
 211      MOUSE_FACE_WINDOW.  */
 212   int mouse_face_beg_row, mouse_face_beg_col;
 213   int mouse_face_beg_x, mouse_face_beg_y;
 214   int mouse_face_end_row, mouse_face_end_col;
 215   int mouse_face_end_x, mouse_face_end_y;
 216   int mouse_face_past_end;
 217   Lisp_Object mouse_face_window;
 218   int mouse_face_face_id;
 219   Lisp_Object mouse_face_overlay;
 220
 221   /* 1 if a mouse motion event came and we didn't handle it right away because
 222      gc was in progress.  */
 223   int mouse_face_deferred_gc;
 224
 225   /* FRAME and X, Y position of mouse when last checked for
 226      highlighting.  X and Y can be negative or out of range for the frame.  */
 227   struct frame *mouse_face_mouse_frame;
 228   int mouse_face_mouse_x, mouse_face_mouse_y;
 229
 230   /* Nonzero means defer mouse-motion highlighting.  */
 231   int mouse_face_defer;
 232
 233   /* Nonzero means that the mouse highlight should not be shown.  */
 234   int mouse_face_hidden;
 235
 236   int mouse_face_image_state;
 237
 238   char *x_id_name;
 239
 240   /* The number of fonts actually stored in x_font_table.
 241      font_table[n] is used and valid iff 0 <= n < n_fonts.  0 <=
 242      n_fonts <= font_table_size and font_table[i].name != 0.  */
 243   int n_fonts;
 244
 245   /* Pointer to bitmap records.  */
 246   struct x_bitmap_record *bitmaps;
 247
 248   /* Allocated size of bitmaps field.  */
 249   int bitmaps_size;
 250
 251   /* Last used bitmap index.  */
 252   int bitmaps_last;
 253
 254   /* Which modifier keys are on which modifier bits?
 255
 256      With each keystroke, X returns eight bits indicating which modifier
 257      keys were held down when the key was pressed.  The interpretation
 258      of the top five modifier bits depends on what keys are attached
 259      to them.  If the Meta_L and Meta_R keysyms are on mod5, then mod5
 260      is the meta bit.
 261
 262      meta_mod_mask is a mask containing the bits used for the meta key.
 263      It may have more than one bit set, if more than one modifier bit
 264      has meta keys on it.  Basically, if EVENT is a KeyPress event,
 265      the meta key is pressed if (EVENT.state & meta_mod_mask) != 0.
 266
 267      shift_lock_mask is LockMask if the XK_Shift_Lock keysym is on the
 268      lock modifier bit, or zero otherwise.  Non-alphabetic keys should
 269      only be affected by the lock modifier bit if XK_Shift_Lock is in
 270      use; XK_Caps_Lock should only affect alphabetic keys.  With this
 271      arrangement, the lock modifier should shift the character if
 272      (EVENT.state & shift_lock_mask) != 0.  */
 273   int meta_mod_mask, shift_lock_mask;
 274
 275   /* These are like meta_mod_mask, but for different modifiers.  */
 276   int alt_mod_mask, super_mod_mask, hyper_mod_mask;
 277
 278   /* Communication with window managers.  */
 279   Atom Xatom_wm_protocols;
 280
 281   /* Kinds of protocol things we may receive.  */
 282   Atom Xatom_wm_take_focus;
 283   Atom Xatom_wm_save_yourself;
 284   Atom Xatom_wm_delete_window;
 285
 286   /* Atom for indicating window state to the window manager.  */
 287   Atom Xatom_wm_change_state;
 288
 289   /* Other WM communication */
 290   Atom Xatom_wm_configure_denied; /* When our config request is denied */
 291   Atom Xatom_wm_window_moved;     /* When the WM moves us.  */
 292
 293   /* EditRes protocol */
 294   Atom Xatom_editres;
 295
 296   /* More atoms, which are selection types.  */
 297   Atom Xatom_CLIPBOARD, Xatom_TIMESTAMP, Xatom_TEXT, Xatom_DELETE,
 298   Xatom_COMPOUND_TEXT, Xatom_UTF8_STRING,
 299   Xatom_MULTIPLE, Xatom_INCR, Xatom_EMACS_TMP, Xatom_TARGETS, Xatom_NULL,
 300   Xatom_ATOM_PAIR;
 301
 302   /* More atoms for font properties.  The last three are private
 303      properties, see the comments in src/fontset.h.  */
 304   Atom Xatom_PIXEL_SIZE,
 305   Xatom_MULE_BASELINE_OFFSET, Xatom_MULE_RELATIVE_COMPOSE,
 306   Xatom_MULE_DEFAULT_ASCENT;
 307
 308   /* More atoms for Ghostscript support.  */
 309   Atom Xatom_DONE, Xatom_PAGE;
 310
 311   /* Atom used in toolkit scroll bar client messages.  */
 312   Atom Xatom_Scrollbar;
 313
 314 #ifdef MULTI_KBOARD
 315   struct kboard *kboard;
 316 #endif
 317   int cut_buffers_initialized; /* Whether we're sure they all exist */
 318
 319   /* The frame (if any) which has the X window that has keyboard focus.
 320      Zero if none.  This is examined by Ffocus_frame in xfns.c.  Note
 321      that a mere EnterNotify event can set this; if you need to know the
 322      last frame specified in a FocusIn or FocusOut event, use
 323      x_focus_event_frame.  */
 324   struct frame *x_focus_frame;
 325
 326   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 327      separate from x_focus_frame, because whether or not LeaveNotify
 328      events cause us to lose focus depends on whether or not we have
 329      received a FocusIn event for it.  */
 330   struct frame *x_focus_event_frame;
 331
 332   /* The frame which currently has the visual highlight, and should get
 333      keyboard input (other sorts of input have the frame encoded in the
 334      event).  It points to the X focus frame's selected window's
 335      frame.  It differs from x_focus_frame when we're using a global
 336      minibuffer.  */
 337   struct frame *x_highlight_frame;
 338
 339   /* The null pixel used for filling a character background with
 340      background color of a gc.  */
 341   Pixmap null_pixel;
 342
 343   /* The gray pixmap.  */
 344   Pixmap gray;
 345
 346   /* Cache of images.  */
 347   struct image_cache *image_cache;
 348
 349 #ifdef HAVE_X_I18N
 350   /* XIM (X Input method).  */
 351   XIM xim;
 352   XIMStyles *xim_styles;
 353 #endif
 354
 355   /* If non-null, a cache of the colors in the color map.  Don't
 356      use this directly, call x_color_cells instead.  */
 357   XColor *color_cells;
 358   int ncolor_cells;
 359 };
 360
 361 /* This checks to make sure we have a display.  */
 362 extern void check_x P_ ((void));
 363
 364 extern struct frame *x_window_to_frame P_ ((struct x_display_info *, int));
 365
 366 #if defined (USE_X_TOOLKIT) || defined (USE_GTK)
 367 extern struct frame *x_any_window_to_frame P_ ((struct x_display_info *, int));
 368 extern struct frame *x_non_menubar_window_to_frame P_ ((struct x_display_info *, int));
 369 extern struct frame *x_top_window_to_frame P_ ((struct x_display_info *, int));
 370 #endif
 371
 372 /* This is a chain of structures for all the X displays currently in use.  */
 373 extern struct x_display_info *x_display_list;
 374
 375 /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
 376    one for each element of x_display_list and in the same order.
 377    NAME is the name of the frame.
 378    FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
 379 extern Lisp_Object x_display_name_list;
 380
 381 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 382 extern Lisp_Object Vx_pixel_size_width_font_regexp;
 383
 384 /* A flag to control how to display unibyte 8-bit character.  */
 385 extern int unibyte_display_via_language_environment;
 386
 387 extern struct x_display_info *x_display_info_for_display P_ ((Display *));
 388 extern struct x_display_info *x_display_info_for_name P_ ((Lisp_Object));
 389
 390 extern struct x_display_info *x_term_init P_ ((Lisp_Object, char *, char *));
 391
 392 extern Lisp_Object x_list_fonts P_ ((struct frame *, Lisp_Object, int, int));
 393 extern void select_visual P_ ((struct x_display_info *));
 394 extern struct font_info *x_get_font_info P_ ((struct frame *f, int));
 395 extern struct font_info *x_load_font P_ ((struct frame *, char *, int));
 396 extern struct font_info *x_query_font P_ ((struct frame *, char *));
 397 extern void x_find_ccl_program P_ ((struct font_info *));
 398 \f
 399 /* Each X frame object points to its own struct x_output object
 400    in the output_data.x field.  The x_output structure contains
 401    the information that is specific to X windows.  */
 402
 403 struct x_output
 404 {
 405   /* Position of the X window (x and y offsets in root window).  */
 406   int left_pos;
 407   int top_pos;
 408
 409   /* Border width of the X window as known by the X window system.  */
 410   int border_width;
 411
 412   /* Size of the X window in pixels.  */
 413   int pixel_height, pixel_width;
 414
 415   /* Height of menu bar widget, in pixels.
 416      Zero if not using the X toolkit.
 417      When using the toolkit, this value is not meaningful
 418      if the menubar is turned off.  */
 419   int menubar_height;
 420
 421   /* Height of tool bar widget, in pixels.
 422      Zero if not using an external tool bar.  */
 423   int toolbar_height;
 424
 425   /* Height of a line, in pixels.  */
 426   int line_height;
 427
 428   /* The tiled border used when the mouse is out of the frame.  */
 429   Pixmap border_tile;
 430
 431   /* Here are the Graphics Contexts for the default font.  */
 432   GC normal_gc;                         /* Normal video */
 433   GC reverse_gc;                        /* Reverse video */
 434   GC cursor_gc;                         /* cursor drawing */
 435
 436   /* Width of the internal border.  This is a line of background color
 437      just inside the window's border.  When the frame is selected,
 438      a highlighting is displayed inside the internal border.  */
 439   int internal_border_width;
 440
 441   /* The X window used for this frame.
 442      May be zero while the frame object is being created
 443      and the X window has not yet been created.  */
 444   Window window_desc;
 445
 446   /* The X window used for the bitmap icon;
 447      or 0 if we don't have a bitmap icon.  */
 448   Window icon_desc;
 449
 450   /* The X window that is the parent of this X window.
 451      Usually this is a window that was made by the window manager,
 452      but it can be the root window, and it can be explicitly specified
 453      (see the explicit_parent field, below).  */
 454   Window parent_desc;
 455
 456 #ifdef USE_X_TOOLKIT
 457   /* The widget of this screen.  This is the window of a "shell" widget.  */
 458   Widget widget;
 459   /* The XmPanedWindows...  */
 460   Widget column_widget;
 461   /* The widget of the edit portion of this screen; the window in
 462      "window_desc" is inside of this.  */
 463   Widget edit_widget;
 464
 465   Widget menubar_widget;
 466 #endif
 467
 468 #ifdef USE_GTK
 469   /* The widget of this screen.  This is the window of a top widget.  */
 470   GtkWidget *widget;
 471   /* The widget of the edit portion of this screen; the window in
 472      "window_desc" is inside of this.  */
 473   GtkWidget *edit_widget;
 474   /* The widget used for laying out widgets vertically.  */
 475   GtkWidget *vbox_widget;
 476   /* The menubar in this frame.  */
 477   GtkWidget *menubar_widget;
 478   /* The tool bar in this frame  */
 479   GtkWidget *toolbar_widget;
 480   /* The handle box that makes the tool bar detachable.  */
 481   GtkWidget *handlebox_widget;
 482
 483   /* The last size hints set.  */
 484   GdkGeometry size_hints;
 485   long hint_flags;
 486 #endif
 487
 488   /* If >=0, a bitmap index.  The indicated bitmap is used for the
 489      icon. */
 490   int icon_bitmap;
 491
 492   /* Default ASCII font of this frame.  */
 493   XFontStruct *font;
 494
 495   /* The baseline offset of the default ASCII font.  */
 496   int baseline_offset;
 497
 498   /* If a fontset is specified for this frame instead of font, this
 499      value contains an ID of the fontset, else -1.  */
 500   int fontset;
 501
 502   /* Pixel values used for various purposes.
 503      border_pixel may be -1 meaning use a gray tile.  */
 504   unsigned long background_pixel;
 505   unsigned long foreground_pixel;
 506   unsigned long cursor_pixel;
 507   unsigned long border_pixel;
 508   unsigned long mouse_pixel;
 509   unsigned long cursor_foreground_pixel;
 510
 511   /* Foreground color for scroll bars.  A value of -1 means use the
 512      default (black for non-toolkit scroll bars).  */
 513   unsigned long scroll_bar_foreground_pixel;
 514
 515   /* Background color for scroll bars.  A value of -1 means use the
 516      default (background color of the frame for non-toolkit scroll
 517      bars).  */
 518   unsigned long scroll_bar_background_pixel;
 519
 520   /* Top and bottom shadow colors for 3d toolkit scrollbars.  -1 means
 521      let the scroll compute them itself.  */
 522   unsigned long scroll_bar_top_shadow_pixel;
 523   unsigned long scroll_bar_bottom_shadow_pixel;
 524
 525   /* Descriptor for the cursor in use for this window.  */
 526   Cursor text_cursor;
 527   Cursor nontext_cursor;
 528   Cursor modeline_cursor;
 529   Cursor cross_cursor;
 530   Cursor hourglass_cursor;
 531   Cursor horizontal_drag_cursor;
 532
 533   /* Window whose cursor is hourglass_cursor.  This window is temporarily
 534      mapped to display an hourglass cursor.  */
 535   Window hourglass_window;
 536
 537   /* Non-zero means hourglass cursor is currently displayed.  */
 538   unsigned hourglass_p : 1;
 539
 540   /* Flag to set when the X window needs to be completely repainted.  */
 541   int needs_exposure;
 542
 543   /* These are the current window manager hints.  It seems that
 544      XSetWMHints, when presented with an unset bit in the `flags'
 545      member of the hints structure, does not leave the corresponding
 546      attribute unchanged; rather, it resets that attribute to its
 547      default value.  For example, unless you set the `icon_pixmap'
 548      field and the `IconPixmapHint' bit, XSetWMHints will forget what
 549      your icon pixmap was.  This is rather troublesome, since some of
 550      the members (for example, `input' and `icon_pixmap') want to stay
 551      the same throughout the execution of Emacs.  So, we keep this
 552      structure around, just leaving values in it and adding new bits
 553      to the mask as we go.  */
 554   XWMHints wm_hints;
 555
 556   /* The size of the extra width currently allotted for vertical
 557      scroll bars, in pixels.  */
 558   int vertical_scroll_bar_extra;
 559
 560   /* The extra width currently allotted for the areas in which
 561      truncation marks, continuation marks, and overlay arrows are
 562      displayed.  */
 563   int left_fringe_width, right_fringe_width;
 564   int fringe_cols, fringes_extra;
 565
 566   /* This is the gravity value for the specified window position.  */
 567   int win_gravity;
 568
 569   /* The geometry flags for this window.  */
 570   int size_hint_flags;
 571
 572   /* This is the Emacs structure for the X display this frame is on.  */
 573   struct x_display_info *display_info;
 574
 575   /* This is a button event that wants to activate the menubar.
 576      We save it here until the command loop gets to think about it.  */
 577   XEvent *saved_menu_event;
 578
 579   /* This is the widget id used for this frame's menubar in lwlib.  */
 580 #ifdef USE_X_TOOLKIT
 581   int id;
 582 #endif
 583
 584   /* Nonzero means our parent is another application's window
 585      and was explicitly specified.  */
 586   char explicit_parent;
 587
 588   /* Nonzero means tried already to make this frame visible.  */
 589   char asked_for_visible;
 590
 591   /* Nonzero if this frame was ever previously visible.  */
 592   char has_been_visible;
 593
 594 #ifdef HAVE_X_I18N
 595   /* Input context (currently, this means Compose key handler setup).  */
 596   XIC xic;
 597   XIMStyle xic_style;
 598   XFontSet xic_xfs;
 599 #endif
 600
 601   /* Relief GCs, colors etc.  */
 602   struct relief
 603   {
 604     GC gc;
 605     unsigned long pixel;
 606     int allocated_p;
 607   }
 608   black_relief, white_relief;
 609
 610   /* The background for which the above relief GCs were set up.
 611      They are changed only when a different background is involved.  */
 612   unsigned long relief_background;
 613
 614   /* Xt waits for a ConfigureNotify event from the window manager in
 615      EmacsFrameSetCharSize when the shell widget is resized.  For some
 616      window managers like fvwm2 2.2.5 and KDE 2.1 this event doesn't
 617      arrive for an unknown reason and Emacs hangs in Xt.  If this is
 618      zero, tell Xt not to wait.  */
 619   int wait_for_wm;
 620
 621   /* See enum below */
 622   int want_fullscreen;
 623
 624   /* This many pixels are the difference between the outer window (i.e. the
 625      left of the window manager decoration) and FRAME_X_WINDOW. */
 626   int x_pixels_diff;
 627
 628   /* This many pixels are the difference between the outer window (i.e. the
 629      top of the window manager titlebar) and FRAME_X_WINDOW. */
 630   int y_pixels_diff;
 631
 632   /* As x_pixels_diff, but to FRAME_OUTER_WINDOW.  For some reason the
 633      two might differ by a pixel, depending on WM */
 634   int x_pixels_outer_diff;
 635
 636   /* As y_pixels_diff, but to FRAME_OUTER_WINDOW.  In the toolkit version,
 637      these may differ because this does not take into account possible
 638      menubar.  y_pixels_diff is with menubar height included */
 639   int y_pixels_outer_diff;
 640
 641   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 642      frame, or IMPLICIT if we received an EnterNotify.
 643      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 644   int focus_state;
 645 };
 646
 647 enum
 648 {
 649   /* Values used as a bit mask, BOTH == WIDTH | HEIGHT.  */
 650   FULLSCREEN_NONE       = 0,
 651   FULLSCREEN_WIDTH      = 1,
 652   FULLSCREEN_HEIGHT     = 2,
 653   FULLSCREEN_BOTH       = 3,
 654   FULLSCREEN_WAIT       = 4,
 655   FULLSCREEN_MOVE_WAIT  = 8,
 656 };
 657
 658 enum
 659 {
 660   /* Values for focus_state, used as bit mask.
 661      EXPLICIT means we received a FocusIn for the frame and know it has
 662      the focus.  IMPLICIT means we recevied an EnterNotify and the frame
 663      may have the focus if no window manager is running.
 664      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 665   FOCUS_NONE     = 0,
 666   FOCUS_IMPLICIT = 1,
 667   FOCUS_EXPLICIT = 2
 668 };
 669
 670
 671 /* Return the X output data for frame F.  */
 672 #define FRAME_X_OUTPUT(f) ((f)->output_data.x)
 673
 674 /* Return the X window used for displaying data in frame F.  */
 675 #define FRAME_X_WINDOW(f) ((f)->output_data.x->window_desc)
 676
 677 /* Return the outermost X window associated with the frame F.  */
 678 #ifdef USE_X_TOOLKIT
 679 #define FRAME_OUTER_WINDOW(f) ((f)->output_data.x->widget ?             \
 680                                XtWindow ((f)->output_data.x->widget) :  \
 681                                FRAME_X_WINDOW (f))
 682 #else
 683 #ifdef USE_GTK
 684 #define GTK_WIDGET_TO_X_WIN(w) \
 685   ((w) && (w)->window ? GDK_WINDOW_XWINDOW ((w)->window) : 0)
 686
 687 #define FRAME_GTK_OUTER_WIDGET(f) ((f)->output_data.x->widget)
 688 #define FRAME_GTK_WIDGET(f) ((f)->output_data.x->edit_widget)
 689 #define FRAME_OUTER_WINDOW(f)                                   \
 690        (FRAME_GTK_OUTER_WIDGET (f) ?                            \
 691         GTK_WIDGET_TO_X_WIN (FRAME_GTK_OUTER_WIDGET (f)) :      \
 692          FRAME_X_WINDOW (f))
 693
 694 #else /* !USE_GTK */
 695 #define FRAME_OUTER_WINDOW(f) (FRAME_X_WINDOW (f))
 696 #endif /* !USE_GTK */
 697 #endif
 698
 699
 700 #define FRAME_FONT(f) ((f)->output_data.x->font)
 701 #define FRAME_FONTSET(f) ((f)->output_data.x->fontset)
 702 #define FRAME_INTERNAL_BORDER_WIDTH(f) ((f)->output_data.x->internal_border_width)
 703 #define FRAME_MENUBAR_HEIGHT(f) ((f)->output_data.x->menubar_height)
 704 #define FRAME_TOOLBAR_HEIGHT(f) ((f)->output_data.x->toolbar_height)
 705 #define FRAME_LINE_HEIGHT(f) ((f)->output_data.x->line_height)
 706
 707 /* Width of the default font of frame F.  Must be defined by each
 708    terminal specific header.  */
 709 #define FRAME_DEFAULT_FONT_WIDTH(F)     FONT_WIDTH (FRAME_FONT (F))
 710 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.x->baseline_offset)
 711
 712 /* This gives the x_display_info structure for the display F is on.  */
 713 #define FRAME_X_DISPLAY_INFO(f) ((f)->output_data.x->display_info)
 714
 715 /* This is the `Display *' which frame F is on.  */
 716 #define FRAME_X_DISPLAY(f) (FRAME_X_DISPLAY_INFO (f)->display)
 717
 718 /* This is the `Screen *' which frame F is on.  */
 719 #define FRAME_X_SCREEN(f) (FRAME_X_DISPLAY_INFO (f)->screen)
 720 #define FRAME_X_SCREEN_NUMBER(f) XScreenNumberOfScreen (FRAME_X_SCREEN (f))
 721
 722 /* This is the Visual which frame F is on.  */
 723 #define FRAME_X_VISUAL(f) FRAME_X_DISPLAY_INFO (f)->visual
 724
 725 /* This is the Colormap which frame F uses.  */
 726 #define FRAME_X_COLORMAP(f) FRAME_X_DISPLAY_INFO (f)->cmap
 727
 728 /* This is the 'font_info *' which frame F has.  */
 729 #define FRAME_X_FONT_TABLE(f) (FRAME_X_DISPLAY_INFO (f)->font_table)
 730
 731 /* These two really ought to be called FRAME_PIXEL_{WIDTH,HEIGHT}.  */
 732 #define PIXEL_WIDTH(f) ((f)->output_data.x->pixel_width)
 733 #define PIXEL_HEIGHT(f) ((f)->output_data.x->pixel_height)
 734
 735 /* The difference in pixels between the top left corner of the
 736    Emacs window (including possible window manager decorations)
 737    and FRAME_X_WINDOW (f).  */
 738 #define FRAME_OUTER_TO_INNER_DIFF_X(f) \
 739      ((f)->output_data.x->x_pixels_outer_diff)
 740 #define FRAME_OUTER_TO_INNER_DIFF_Y(f)          \
 741      ((f)->output_data.x->y_pixels_outer_diff   \
 742       + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f))
 743
 744
 745 #define FRAME_XIC(f) ((f)->output_data.x->xic)
 746 #define FRAME_X_XIM(f) (FRAME_X_DISPLAY_INFO (f)->xim)
 747 #define FRAME_X_XIM_STYLES(f) (FRAME_X_DISPLAY_INFO (f)->xim_styles)
 748 #define FRAME_XIC_STYLE(f) ((f)->output_data.x->xic_style)
 749 #define FRAME_XIC_FONTSET(f) ((f)->output_data.x->xic_xfs)
 750
 751 /* Value is the smallest width of any character in any font on frame F.  */
 752
 753 #define FRAME_SMALLEST_CHAR_WIDTH(F) \
 754      FRAME_X_DISPLAY_INFO(F)->smallest_char_width
 755
 756 /* Value is the smallest height of any font on frame F.  */
 757
 758 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
 759      FRAME_X_DISPLAY_INFO(F)->smallest_font_height
 760
 761 /* Return a pointer to the image cache of frame F.  */
 762
 763 #define FRAME_X_IMAGE_CACHE(F) FRAME_X_DISPLAY_INFO ((F))->image_cache
 764
 765 \f
 766 /* Total width of fringes reserved for drawing truncation bitmaps,
 767    continuation bitmaps and alike.  The width is in canonical char
 768    units of the frame.  This must currently be the case because window
 769    sizes aren't pixel values.  If it weren't the case, we wouldn't be
 770    able to split windows horizontally nicely.  */
 771
 772 #define FRAME_X_FRINGE_COLS(F)  ((F)->output_data.x->fringe_cols)
 773
 774 /* Total width of fringes in pixels.  */
 775
 776 #define FRAME_X_FRINGE_WIDTH(F) ((F)->output_data.x->fringes_extra)
 777
 778 /* Pixel-width of the left and right fringe.  */
 779
 780 #define FRAME_X_LEFT_FRINGE_WIDTH(F) ((F)->output_data.x->left_fringe_width)
 781 #define FRAME_X_RIGHT_FRINGE_WIDTH(F) ((F)->output_data.x->right_fringe_width)
 782
 783
 784 \f
 785 /* X-specific scroll bar stuff.  */
 786
 787 /* We represent scroll bars as lisp vectors.  This allows us to place
 788    references to them in windows without worrying about whether we'll
 789    end up with windows referring to dead scroll bars; the garbage
 790    collector will free it when its time comes.
 791
 792    We use struct scroll_bar as a template for accessing fields of the
 793    vector.  */
 794
 795 struct scroll_bar
 796 {
 797   /* These fields are shared by all vectors.  */
 798   EMACS_INT size_from_Lisp_Vector_struct;
 799   struct Lisp_Vector *next_from_Lisp_Vector_struct;
 800
 801   /* The window we're a scroll bar for.  */
 802   Lisp_Object window;
 803
 804   /* The next and previous in the chain of scroll bars in this frame.  */
 805   Lisp_Object next, prev;
 806
 807   /* The X window representing this scroll bar.  Since this is a full
 808      32-bit quantity, we store it split into two 32-bit values.  */
 809   Lisp_Object x_window_low, x_window_high;
 810
 811   /* The position and size of the scroll bar in pixels, relative to the
 812      frame.  */
 813   Lisp_Object top, left, width, height;
 814
 815   /* The starting and ending positions of the handle, relative to the
 816      handle area (i.e. zero is the top position, not
 817      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 818      hasn't been drawn yet.
 819
 820      These are not actually the locations where the beginning and end
 821      are drawn; in order to keep handles from becoming invisible when
 822      editing large files, we establish a minimum height by always
 823      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 824      where they would be normally; the bottom and top are in a
 825      different co-ordinate system.  */
 826   Lisp_Object start, end;
 827
 828   /* If the scroll bar handle is currently being dragged by the user,
 829      this is the number of pixels from the top of the handle to the
 830      place where the user grabbed it.  If the handle isn't currently
 831      being dragged, this is Qnil.  */
 832   Lisp_Object dragging;
 833 };
 834
 835 /* The number of elements a vector holding a struct scroll_bar needs.  */
 836 #define SCROLL_BAR_VEC_SIZE                                     \
 837   ((sizeof (struct scroll_bar)                                  \
 838     - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *))       \
 839    / sizeof (Lisp_Object))
 840
 841 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 842 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 843
 844
 845 /* Building a 32-bit C integer from two 16-bit lisp integers.  */
 846 #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low))
 847
 848 /* Setting two lisp integers to the low and high words of a 32-bit C int.  */
 849 #define SCROLL_BAR_UNPACK(low, high, int32) \
 850   (XSETINT ((low),   (int32)        & 0xffff), \
 851    XSETINT ((high), ((int32) >> 16) & 0xffff))
 852
 853
 854 /* Extract the X window id of the scroll bar from a struct scroll_bar.  */
 855 #define SCROLL_BAR_X_WINDOW(ptr) \
 856   ((Window) SCROLL_BAR_PACK ((ptr)->x_window_low, (ptr)->x_window_high))
 857
 858 /* Store a window id in a struct scroll_bar.  */
 859 #define SET_SCROLL_BAR_X_WINDOW(ptr, id) \
 860   (SCROLL_BAR_UNPACK ((ptr)->x_window_low, (ptr)->x_window_high, (int) id))
 861
 862 /* Extract the X widget of the scroll bar from a struct scroll_bar.
 863    XtWindowToWidget should be fast enough since Xt uses a hash table
 864    to map windows to widgets.  */
 865
 866 #define SCROLL_BAR_X_WIDGET(dpy, ptr) \
 867   XtWindowToWidget (dpy, SCROLL_BAR_X_WINDOW (ptr))
 868
 869 /* Store a widget id in a struct scroll_bar.  */
 870
 871 #define SET_SCROLL_BAR_X_WIDGET(ptr, w)         \
 872   do {                                          \
 873     Window window = XtWindow (w);               \
 874     SET_SCROLL_BAR_X_WINDOW (ptr, window);      \
 875 } while (0)
 876
 877
 878 /* Return the inside width of a vertical scroll bar, given the outside
 879    width.  */
 880 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f, width) \
 881   ((width) \
 882    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 883    - VERTICAL_SCROLL_BAR_RIGHT_BORDER \
 884    - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2)
 885
 886 /* Return the length of the rectangle within which the top of the
 887    handle must stay.  This isn't equivalent to the inside height,
 888    because the scroll bar handle has a minimum height.
 889
 890    This is the real range of motion for the scroll bar, so when we're
 891    scaling buffer positions to scroll bar positions, we use this, not
 892    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 893 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f, height) \
 894   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 895
 896 /* Return the inside height of vertical scroll bar, given the outside
 897    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 898 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f, height) \
 899   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 900
 901
 902 /* Border widths for scroll bars.
 903
 904    Scroll bar windows don't have any X borders; their border width is
 905    set to zero, and we redraw borders ourselves.  This makes the code
 906    a bit cleaner, since we don't have to convert between outside width
 907    (used when relating to the rest of the screen) and inside width
 908    (used when sizing and drawing the scroll bar window itself).
 909
 910    The handle moves up and down/back and forth in a rectangle inset
 911    from the edges of the scroll bar.  These are widths by which we
 912    inset the handle boundaries from the scroll bar edges.  */
 913 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (2)
 914 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (2)
 915 #define VERTICAL_SCROLL_BAR_TOP_BORDER (2)
 916 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (2)
 917
 918 /* Minimum lengths for scroll bar handles, in pixels.  */
 919 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (5)
 920
 921 /* Trimming off a few pixels from each side prevents
 922    text from glomming up against the scroll bar */
 923 #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0)
 924
 925 \f
 926 /* Manipulating pixel sizes and character sizes.
 927    Knowledge of which factors affect the overall size of the window should
 928    be hidden in these macros, if that's possible.
 929
 930    Return the upper/left pixel position of the character cell on frame F
 931    at ROW/COL.  */
 932 #define CHAR_TO_PIXEL_ROW(f, row) \
 933   ((f)->output_data.x->internal_border_width \
 934    + (row) * (f)->output_data.x->line_height)
 935 #define CHAR_TO_PIXEL_COL(f, col) \
 936   ((f)->output_data.x->internal_border_width \
 937    + (col) * FONT_WIDTH ((f)->output_data.x->font))
 938
 939 /* Return the pixel width/height of frame F if it has
 940    WIDTH columns/HEIGHT rows.  */
 941 #define CHAR_TO_PIXEL_WIDTH(f, width) \
 942   (CHAR_TO_PIXEL_COL (f, width) \
 943    + (f)->output_data.x->vertical_scroll_bar_extra \
 944    + (f)->output_data.x->fringes_extra \
 945    + (f)->output_data.x->internal_border_width)
 946 #define CHAR_TO_PIXEL_HEIGHT(f, height) \
 947   (CHAR_TO_PIXEL_ROW (f, height) \
 948    + (f)->output_data.x->internal_border_width)
 949
 950
 951 /* Return the row/column (zero-based) of the character cell containing
 952    the pixel on FRAME at ROW/COL.  */
 953 #define PIXEL_TO_CHAR_ROW(f, row) \
 954   (((row) - (f)->output_data.x->internal_border_width) \
 955    / (f)->output_data.x->line_height)
 956 #define PIXEL_TO_CHAR_COL(f, col) \
 957   (((col) - (f)->output_data.x->internal_border_width) \
 958    / FONT_WIDTH ((f)->output_data.x->font))
 959
 960 /* How many columns/rows of text can we fit in WIDTH/HEIGHT pixels on
 961    frame F?  */
 962 #define PIXEL_TO_CHAR_WIDTH(f, width) \
 963   (PIXEL_TO_CHAR_COL (f, ((width) \
 964                           - (f)->output_data.x->internal_border_width \
 965                           - (f)->output_data.x->fringes_extra \
 966                           - (f)->output_data.x->vertical_scroll_bar_extra)))
 967 #define PIXEL_TO_CHAR_HEIGHT(f, height) \
 968   (PIXEL_TO_CHAR_ROW (f, ((height) \
 969                           - (f)->output_data.x->internal_border_width)))
 970
 971 \f
 972 /* If a struct input_event has a kind which is SELECTION_REQUEST_EVENT
 973    or SELECTION_CLEAR_EVENT, then its contents are really described
 974    by this structure.  */
 975
 976 /* For an event of kind SELECTION_REQUEST_EVENT,
 977    this structure really describes the contents.
 978    **Don't make this struct longer!**
 979    If it overlaps the frame_or_window field of struct input_event,
 980    that will cause GC to crash.  */
 981 struct selection_input_event
 982 {
 983   int kind;
 984   Display *display;
 985   /* We spell it with an "o" here because X does.  */
 986   Window requestor;
 987   Atom selection, target, property;
 988   Time time;
 989 };
 990
 991 #define SELECTION_EVENT_DISPLAY(eventp) \
 992   (((struct selection_input_event *) (eventp))->display)
 993 /* We spell it with an "o" here because X does.  */
 994 #define SELECTION_EVENT_REQUESTOR(eventp)       \
 995   (((struct selection_input_event *) (eventp))->requestor)
 996 #define SELECTION_EVENT_SELECTION(eventp)       \
 997   (((struct selection_input_event *) (eventp))->selection)
 998 #define SELECTION_EVENT_TARGET(eventp)  \
 999   (((struct selection_input_event *) (eventp))->target)
1000 #define SELECTION_EVENT_PROPERTY(eventp)        \
1001   (((struct selection_input_event *) (eventp))->property)
1002 #define SELECTION_EVENT_TIME(eventp)    \
1003   (((struct selection_input_event *) (eventp))->time)
1004
1005 \f
1006 struct window;
1007 struct glyph_matrix;
1008 struct frame;
1009 struct input_event;
1010 struct face;
1011 struct image;
1012
1013 /* From xselect.c.  */
1014
1015 void x_handle_selection_notify P_ ((XSelectionEvent *));
1016 void x_handle_property_notify P_ ((XPropertyEvent *));
1017
1018 /* From xfns.c.  */
1019
1020 Lisp_Object display_x_get_resource P_ ((struct x_display_info *,
1021                                         Lisp_Object, Lisp_Object,
1022                                         Lisp_Object, Lisp_Object));
1023 struct frame *check_x_frame P_ ((Lisp_Object));
1024 EXFUN (Fx_display_color_p, 1);
1025 EXFUN (Fx_display_grayscale_p, 1);
1026 int image_ascent P_ ((struct image *, struct face *));
1027 extern void x_free_gcs P_ ((struct frame *));
1028
1029 /* From xrdb.c.  */
1030
1031 char *x_get_string_resource P_ ((XrmDatabase, char *, char *));
1032 char *x_get_customization_string P_ ((XrmDatabase, char *, char *));
1033 XrmDatabase x_load_resources P_ ((Display *, char *, char *, char *));
1034 int x_get_resource P_ ((XrmDatabase, char *, char *,
1035                         XrmRepresentation, XrmValue *));
1036 void x_delete_display P_ ((struct x_display_info *));
1037 void x_make_frame_visible P_ ((struct frame *));
1038 void x_iconify_frame P_ ((struct frame *));
1039 void x_wm_set_size_hint P_ ((struct frame *, long, int));
1040 void x_set_offset P_ ((struct frame *, int, int, int));
1041 void x_wm_set_icon_position P_ ((struct frame *, int, int));
1042 int x_catch_errors P_ ((Display *));
1043 int x_had_errors_p P_ ((Display *));
1044 void x_uncatch_errors P_ ((Display *, int));
1045 void x_check_errors P_ ((Display *, char *));
1046 int x_text_icon P_ ((struct frame *, char *));
1047 int x_bitmap_icon P_ ((struct frame *, Lisp_Object));
1048 void x_set_window_size P_ ((struct frame *, int, int, int));
1049 void x_wm_set_window_state P_ ((struct frame *, int));
1050 int x_alloc_nearest_color P_ ((struct frame *, Colormap, XColor *));
1051
1052 extern void pixel_to_glyph_coords P_ ((struct frame *, int, int,
1053                                        int *, int *, XRectangle *, int));
1054
1055 /* Defined in xterm.c */
1056
1057 extern void cancel_mouse_face P_ ((struct frame *));
1058 extern void x_scroll_bar_clear P_ ((struct frame *));
1059 extern void x_start_queuing_selection_requests P_ ((Display *));
1060 extern void x_stop_queuing_selection_requests P_ ((Display *));
1061 extern void x_update_cursor P_ ((struct frame *, int));
1062 extern int x_text_icon P_ ((struct frame *, char *));
1063 extern int x_bitmap_icon P_ ((struct frame *, Lisp_Object));
1064 extern int x_catch_errors P_ ((Display *));
1065 extern void x_check_errors P_ ((Display *, char *));
1066 extern int x_had_errors_p P_ ((Display *));
1067 extern void x_uncatch_errors P_ ((Display *, int));
1068 extern Lisp_Object x_new_font P_ ((struct frame *, char *));
1069 extern Lisp_Object x_new_fontset P_ ((struct frame *, char *));
1070 extern void x_set_offset P_ ((struct frame *, int, int, int));
1071 extern void x_set_window_size P_ ((struct frame *, int, int, int));
1072 extern void x_set_mouse_position P_ ((struct frame *, int, int));
1073 extern void x_set_mouse_pixel_position P_ ((struct frame *, int, int));
1074 extern void x_raise_frame P_ ((struct frame *));
1075 extern void x_lower_frame P_ ((struct frame *));
1076 extern void x_make_frame_visible P_ ((struct frame *));
1077 extern void x_make_frame_invisible P_ ((struct frame *));
1078 extern void x_iconify_frame P_ ((struct frame *));
1079 extern void x_free_frame_resources P_ ((struct frame *));
1080 extern void x_destroy_window P_ ((struct frame *));
1081 extern void x_wm_set_size_hint P_ ((struct frame *, long, int));
1082 extern void x_wm_set_window_state P_ ((struct frame *, int));
1083 extern void x_wm_set_icon_pixmap P_ ((struct frame *, int));
1084 extern void x_wm_set_icon_position P_ ((struct frame *, int, int));
1085 extern void x_delete_display P_ ((struct x_display_info *));
1086 extern void x_initialize P_ ((void));
1087 extern void x_display_cursor P_ ((struct window *, int, int, int, int, int));
1088 extern unsigned long x_copy_color P_ ((struct frame *, unsigned long));
1089 #ifdef USE_X_TOOLKIT
1090 extern XtAppContext Xt_app_con;
1091 #endif
1092 extern void x_query_colors P_ ((struct frame *f, XColor *, int));
1093 extern void x_query_color P_ ((struct frame *f, XColor *));
1094 extern void x_clear_area P_ ((Display *, Window, int, int, int, int, int));
1095
1096 extern void x_fullscreen_adjust P_ ((struct frame *f, int *, int *,
1097                                      int *, int *));
1098
1099 extern int x_dispatch_event P_ ((XEvent *, Display *));
1100
1101 /* Defined in xselect.c */
1102
1103 extern void x_handle_property_notify P_ ((XPropertyEvent *));
1104 extern void x_handle_selection_notify P_ ((XSelectionEvent *));
1105 extern void x_handle_selection_request P_ ((struct input_event *));
1106 extern void x_handle_selection_clear P_ ((struct input_event *));
1107 extern void x_clear_frame_selections P_ ((struct frame *));
1108
1109 /* Defined in xfns.c */
1110
1111 extern int have_menus_p P_ ((void));
1112 extern int x_bitmap_height P_ ((struct frame *, int));
1113 extern int x_bitmap_width P_ ((struct frame *, int));
1114 extern int x_bitmap_pixmap P_ ((struct frame *, int));
1115 extern void x_reference_bitmap P_ ((struct frame *, int));
1116 extern int x_create_bitmap_from_data P_ ((struct frame *, char *,
1117                                           unsigned int, unsigned int));
1118 extern int x_create_bitmap_from_file P_ ((struct frame *, Lisp_Object));
1119 extern void x_destroy_bitmap P_ ((struct frame *, int));
1120 extern void x_set_frame_parameters P_ ((struct frame *, Lisp_Object));
1121 extern void x_real_positions P_ ((struct frame *, int *, int *));
1122 extern void x_report_frame_params P_ ((struct frame *, Lisp_Object *));
1123 extern int defined_color P_ ((struct frame *, char *, XColor *, int));
1124 extern void x_set_border_pixel P_ ((struct frame *, int));
1125 extern void x_set_menu_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
1126 extern unsigned char * x_encode_text P_ ((Lisp_Object, Lisp_Object, int,
1127                                           int *, int *));
1128 extern void x_implicitly_set_name P_ ((struct frame *, Lisp_Object, Lisp_Object));
1129 extern void create_frame_xic P_ ((struct frame *));
1130 extern void destroy_frame_xic P_ ((struct frame *));
1131 extern void xic_set_preeditarea P_ ((struct window *, int, int));
1132 extern void xic_set_statusarea P_ ((struct frame *));
1133 extern void xic_set_xfontset P_ ((struct frame *, char *));
1134 extern int x_pixel_width P_ ((struct frame *));
1135 extern int x_pixel_height P_ ((struct frame *));
1136 extern int x_char_width P_ ((struct frame *));
1137 extern int x_char_height P_ ((struct frame *));
1138 extern int x_screen_planes P_ ((struct frame *));
1139 extern void x_sync P_ ((struct frame *));
1140 extern int x_defined_color P_ ((struct frame *, char *, XColor *, int));
1141 #ifdef HAVE_X_I18N
1142 extern void free_frame_xic P_ ((struct frame *));
1143 #endif
1144 extern void x_set_tool_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
1145
1146 /* Defined in xfaces.c */
1147
1148 extern int frame_update_line_height P_ ((struct frame *));
1149 extern int compute_glyph_face P_ ((struct frame *, int, int));
1150 extern int compute_glyph_face_1 P_ ((struct frame *, Lisp_Object, int));
1151 extern void x_free_dpy_colors P_ ((Display *, Screen *, Colormap,
1152                                    unsigned long *, int));
1153
1154 /* Defined in xmenu.c */
1155
1156 extern void x_activate_menubar P_ ((struct frame *));
1157 extern int popup_activated P_ ((void));
1158 extern void initialize_frame_menubar P_ ((struct frame *));
1159
1160 /* Defined in widget.c */
1161
1162 #ifdef USE_X_TOOLKIT
1163 extern void widget_store_internal_border P_ ((Widget));
1164 #endif
1165
1166 /* Defined in xsmfns.c */
1167 #ifdef HAVE_X_SM
1168 extern void x_session_initialize P_ ((void));
1169 extern int x_session_check_input P_ ((struct input_event *bufp,
1170                                       int *numchars));
1171 extern int x_session_have_connection P_ ((void));
1172 #endif
1173
1174 #define FONT_TYPE_FOR_UNIBYTE(font, ch) 0
1175 #define FONT_TYPE_FOR_MULTIBYTE(font, ch) 0
1176
1177 #define STORE_XCHAR2B(chp, b1, b2) \
1178   ((chp)->byte1 = (b1), (chp)->byte2 = (b2))
1179
1180 #define XCHAR2B_BYTE1(chp) \
1181   ((chp)->byte1)
1182
1183 #define XCHAR2B_BYTE2(chp) \
1184   ((chp)->byte2)
1185