src/xterm.h

   1 /* Definitions and headers for communication with X protocol.
   2    Copyright (C) 1989, 1993-1994, 1998-2016 Free Software Foundation,
   3    Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or (at
  10 your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef XTERM_H
  21 #define XTERM_H
  22
  23 #include <X11/Xlib.h>
  24 #include <X11/cursorfont.h>
  25
  26 /* Include Xutil.h after keysym.h to work around a bug that prevents
  27    correct recognition of AltGr key in some X versions.  */
  28
  29 #include <X11/keysym.h>
  30 #include <X11/Xutil.h>
  31
  32 #include <X11/Xatom.h>
  33 #include <X11/Xresource.h>
  34
  35 #ifdef USE_X_TOOLKIT
  36 #include <X11/StringDefs.h>
  37 #include <X11/IntrinsicP.h>     /* CoreP.h needs this */
  38 #include <X11/CoreP.h>          /* foul, but we need this to use our own
  39                                    window inside a widget instead of one
  40                                    that Xt creates... */
  41 typedef Widget xt_or_gtk_widget;
  42 #endif
  43
  44 #ifdef USE_GTK
  45 #include <gtk/gtk.h>
  46 #include <gdk/gdkx.h>
  47
  48 /* Some definitions to reduce conditionals.  */
  49 typedef GtkWidget *xt_or_gtk_widget;
  50 #undef XSync
  51 #define XSync(d, b) do { gdk_window_process_all_updates (); \
  52                          XSync (d, b);  } while (false)
  53 #endif /* USE_GTK */
  54
  55 /* True iff GTK's version is at least I.J.K.  */
  56 #ifndef GTK_CHECK_VERSION
  57 # ifdef USE_GTK
  58 #  define GTK_CHECK_VERSION(i, j, k) \
  59      ((i) \
  60       < GTK_MAJOR_VERSION + ((j) \
  61                              < GTK_MINOR_VERSION + ((k) \
  62                                                     <= GTK_MICRO_VERSION)))
  63 # else
  64 #  define GTK_CHECK_VERSION(i, j, k) false
  65 # endif
  66 #endif
  67
  68 /* The GtkTooltip API came in 2.12, but gtk-enable-tooltips in 2.14. */
  69 #if GTK_CHECK_VERSION (2, 14, 0)
  70 #define USE_GTK_TOOLTIP
  71 #endif
  72
  73 #ifdef USE_CAIRO
  74 #include <cairo-xlib.h>
  75 #ifdef CAIRO_HAS_PDF_SURFACE
  76 #include <cairo-pdf.h>
  77 #endif
  78 #ifdef CAIRO_HAS_PS_SURFACE
  79 #include <cairo-ps.h>
  80 #endif
  81 #ifdef CAIRO_HAS_SVG_SURFACE
  82 #include <cairo-svg.h>
  83 #endif
  84 #endif
  85
  86 #ifdef HAVE_X_I18N
  87 #include <X11/Xlocale.h>
  88 #endif
  89
  90 #ifdef USE_XCB
  91 #include <X11/Xlib-xcb.h>
  92 #endif
  93
  94 #include "dispextern.h"
  95 #include "termhooks.h"
  96
  97 INLINE_HEADER_BEGIN
  98
  99 /* Black and white pixel values for the screen which frame F is on.  */
 100 #define BLACK_PIX_DEFAULT(f)                                    \
 101   BlackPixel (FRAME_X_DISPLAY (f), FRAME_X_SCREEN_NUMBER (f))
 102 #define WHITE_PIX_DEFAULT(f)                                    \
 103   WhitePixel (FRAME_X_DISPLAY (f), FRAME_X_SCREEN_NUMBER (f))
 104
 105 /* The mask of events that text windows always want to receive.  This
 106    includes mouse movement events, since handling the mouse-font text property
 107    means that we must track mouse motion all the time.  */
 108
 109 #define STANDARD_EVENT_SET      \
 110   (KeyPressMask                 \
 111    | ExposureMask               \
 112    | ButtonPressMask            \
 113    | ButtonReleaseMask          \
 114    | PointerMotionMask          \
 115    | StructureNotifyMask        \
 116    | FocusChangeMask            \
 117    | LeaveWindowMask            \
 118    | EnterWindowMask            \
 119    | VisibilityChangeMask)
 120
 121 #ifdef HAVE_X11R6_XIM
 122 /* Data structure passed to xim_instantiate_callback.  */
 123 struct xim_inst_t
 124 {
 125   struct x_display_info *dpyinfo;
 126   char *resource_name;
 127 };
 128 #endif /* HAVE_X11R6_XIM */
 129
 130 /* Structure recording X pixmap and reference count.
 131    If REFCOUNT is 0 then this record is free to be reused.  */
 132
 133 struct x_bitmap_record
 134 {
 135 #ifdef USE_CAIRO
 136   void *img;
 137 #endif
 138   Pixmap pixmap;
 139   bool have_mask;
 140   Pixmap mask;
 141   char *file;
 142   int refcount;
 143   /* Record some info about this pixmap.  */
 144   int height, width, depth;
 145 };
 146 \f
 147 #ifdef USE_CAIRO
 148 struct x_gc_ext_data
 149 {
 150 #define MAX_CLIP_RECTS 2
 151   /* Number of clipping rectangles.  */
 152   int n_clip_rects;
 153
 154   /* Clipping rectangles.  */
 155   XRectangle clip_rects[MAX_CLIP_RECTS];
 156 };
 157 #endif
 158
 159 \f
 160 struct color_name_cache_entry
 161 {
 162   struct color_name_cache_entry *next;
 163   XColor rgb;
 164   char *name;
 165 };
 166
 167 Status x_parse_color (struct frame *f, const char *color_name,
 168                       XColor *color);
 169
 170 \f
 171 /* For each X display, we have a structure that records
 172    information about it.  */
 173
 174 struct x_display_info
 175 {
 176   /* Chain of all x_display_info structures.  */
 177   struct x_display_info *next;
 178
 179   /* The generic display parameters corresponding to this X display. */
 180   struct terminal *terminal;
 181
 182   /* This says how to access this display in Xlib.  */
 183   Display *display;
 184
 185   /* A connection number (file descriptor) for the display.  */
 186   int connection;
 187
 188   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).  */
 189   Lisp_Object name_list_element;
 190
 191   /* Number of frames that are on this display.  */
 192   int reference_count;
 193
 194   /* The Screen this connection is connected to.  */
 195   Screen *screen;
 196
 197   /* Dots per inch of the screen.  */
 198   double resx, resy;
 199
 200   /* The Visual being used for this display.  */
 201   Visual *visual;
 202
 203   /* The colormap being used.  */
 204   Colormap cmap;
 205
 206   /* Number of planes on this screen.  */
 207   int n_planes;
 208
 209   /* Mask of things that cause the mouse to be grabbed.  */
 210   int grabbed;
 211
 212   /* Emacs bitmap-id of the default icon bitmap for this frame.
 213      Or -1 if none has been allocated yet.  */
 214   ptrdiff_t icon_bitmap_id;
 215
 216   /* The root window of this screen.  */
 217   Window root_window;
 218
 219   /* Client leader window.  */
 220   Window client_leader_window;
 221
 222   /* The cursor to use for vertical scroll bars.  */
 223   Cursor vertical_scroll_bar_cursor;
 224
 225   /* The cursor to use for horizontal scroll bars.  */
 226   Cursor horizontal_scroll_bar_cursor;
 227
 228   /* The invisible cursor used for pointer blanking.
 229      Unused if this display supports Xfixes extension.  */
 230   Cursor invisible_cursor;
 231
 232   /* Function used to toggle pointer visibility on this display.  */
 233   void (*toggle_visible_pointer) (struct frame *, bool);
 234
 235 #ifdef USE_GTK
 236   /* The GDK cursor for scroll bars and popup menus.  */
 237   GdkCursor *xg_cursor;
 238 #endif
 239
 240   /* X Resource data base */
 241   XrmDatabase xrdb;
 242
 243   /* Minimum width over all characters in all fonts in font_table.  */
 244   int smallest_char_width;
 245
 246   /* Minimum font height over all fonts in font_table.  */
 247   int smallest_font_height;
 248
 249   /* Reusable Graphics Context for drawing a cursor in a non-default face. */
 250   GC scratch_cursor_gc;
 251
 252   /* Information about the range of text currently shown in
 253      mouse-face.  */
 254   Mouse_HLInfo mouse_highlight;
 255
 256   /* Logical identifier of this display.  */
 257   unsigned x_id;
 258
 259   /* Default name for all frames on this display.  */
 260   char *x_id_name;
 261
 262   /* The number of fonts opened for this display.  */
 263   int n_fonts;
 264
 265   /* Pointer to bitmap records.  */
 266   struct x_bitmap_record *bitmaps;
 267
 268   /* Allocated size of bitmaps field.  */
 269   ptrdiff_t bitmaps_size;
 270
 271   /* Last used bitmap index.  */
 272   ptrdiff_t bitmaps_last;
 273
 274   /* Which modifier keys are on which modifier bits?
 275
 276      With each keystroke, X returns eight bits indicating which modifier
 277      keys were held down when the key was pressed.  The interpretation
 278      of the top five modifier bits depends on what keys are attached
 279      to them.  If the Meta_L and Meta_R keysyms are on mod5, then mod5
 280      is the meta bit.
 281
 282      meta_mod_mask is a mask containing the bits used for the meta key.
 283      It may have more than one bit set, if more than one modifier bit
 284      has meta keys on it.  Basically, if EVENT is a KeyPress event,
 285      the meta key is pressed if (EVENT.state & meta_mod_mask) != 0.
 286
 287      shift_lock_mask is LockMask if the XK_Shift_Lock keysym is on the
 288      lock modifier bit, or zero otherwise.  Non-alphabetic keys should
 289      only be affected by the lock modifier bit if XK_Shift_Lock is in
 290      use; XK_Caps_Lock should only affect alphabetic keys.  With this
 291      arrangement, the lock modifier should shift the character if
 292      (EVENT.state & shift_lock_mask) != 0.  */
 293   int meta_mod_mask, shift_lock_mask;
 294
 295   /* These are like meta_mod_mask, but for different modifiers.  */
 296   int alt_mod_mask, super_mod_mask, hyper_mod_mask;
 297
 298   /* Communication with window managers.  */
 299   Atom Xatom_wm_protocols;
 300
 301   /* Kinds of protocol things we may receive.  */
 302   Atom Xatom_wm_take_focus;
 303   Atom Xatom_wm_save_yourself;
 304   Atom Xatom_wm_delete_window;
 305
 306   /* Atom for indicating window state to the window manager.  */
 307   Atom Xatom_wm_change_state;
 308
 309   /* Other WM communication */
 310   Atom Xatom_wm_configure_denied; /* When our config request is denied */
 311   Atom Xatom_wm_window_moved;     /* When the WM moves us.  */
 312   Atom Xatom_wm_client_leader;    /* Id of client leader window.  */
 313
 314   /* EditRes protocol */
 315   Atom Xatom_editres;
 316
 317   /* More atoms, which are selection types.  */
 318   Atom Xatom_CLIPBOARD, Xatom_TIMESTAMP, Xatom_TEXT, Xatom_DELETE,
 319   Xatom_COMPOUND_TEXT, Xatom_UTF8_STRING,
 320   Xatom_MULTIPLE, Xatom_INCR, Xatom_EMACS_TMP, Xatom_TARGETS, Xatom_NULL,
 321   Xatom_ATOM, Xatom_ATOM_PAIR, Xatom_CLIPBOARD_MANAGER;
 322
 323   /* More atoms for font properties.  The last three are private
 324      properties, see the comments in src/fontset.h.  */
 325   Atom Xatom_PIXEL_SIZE, Xatom_AVERAGE_WIDTH,
 326   Xatom_MULE_BASELINE_OFFSET, Xatom_MULE_RELATIVE_COMPOSE,
 327   Xatom_MULE_DEFAULT_ASCENT;
 328
 329   /* More atoms for Ghostscript support.  */
 330   Atom Xatom_DONE, Xatom_PAGE;
 331
 332   /* Atoms used in toolkit scroll bar client messages.  */
 333   Atom Xatom_Scrollbar, Xatom_Horizontal_Scrollbar;
 334
 335   /* Atom used in XEmbed client messages.  */
 336   Atom Xatom_XEMBED, Xatom_XEMBED_INFO;
 337
 338   /* The frame (if any) which has the X window that has keyboard focus.
 339      Zero if none.  This is examined by Ffocus_frame in xfns.c.  Note
 340      that a mere EnterNotify event can set this; if you need to know the
 341      last frame specified in a FocusIn or FocusOut event, use
 342      x_focus_event_frame.  */
 343   struct frame *x_focus_frame;
 344
 345   /* The last frame mentioned in a FocusIn or FocusOut event.  This is
 346      separate from x_focus_frame, because whether or not LeaveNotify
 347      events cause us to lose focus depends on whether or not we have
 348      received a FocusIn event for it.  */
 349   struct frame *x_focus_event_frame;
 350
 351   /* The frame which currently has the visual highlight, and should get
 352      keyboard input (other sorts of input have the frame encoded in the
 353      event).  It points to the X focus frame's selected window's
 354      frame.  It differs from x_focus_frame when we're using a global
 355      minibuffer.  */
 356   struct frame *x_highlight_frame;
 357
 358   /* The frame waiting to be auto-raised in XTread_socket.  */
 359   struct frame *x_pending_autoraise_frame;
 360
 361   /* The frame where the mouse was last time we reported a ButtonPress event.  */
 362   struct frame *last_mouse_frame;
 363
 364   /* The frame where the mouse was last time we reported a mouse position.  */
 365   struct frame *last_mouse_glyph_frame;
 366
 367   /* The frame where the mouse was last time we reported a mouse motion.  */
 368   struct frame *last_mouse_motion_frame;
 369
 370   /* The scroll bar in which the last X motion event occurred.  */
 371   struct scroll_bar *last_mouse_scroll_bar;
 372
 373   /* Time of last user interaction as returned in X events on this display.  */
 374   Time last_user_time;
 375
 376   /* Position where the mouse was last time we reported a motion.
 377      This is a position on last_mouse_motion_frame.  */
 378   int last_mouse_motion_x;
 379   int last_mouse_motion_y;
 380
 381   /* Where the mouse was last time we reported a mouse position.
 382      This is a rectangle on last_mouse_glyph_frame.  */
 383   XRectangle last_mouse_glyph;
 384
 385   /* Time of last mouse movement on this display.  This is a hack because
 386      we would really prefer that XTmouse_position would return the time
 387      associated with the position it returns, but there doesn't seem to be
 388      any way to wrest the time-stamp from the server along with the position
 389      query.  So, we just keep track of the time of the last movement we
 390      received, and return that in hopes that it's somewhat accurate.  */
 391   Time last_mouse_movement_time;
 392
 393   /* The gray pixmap.  */
 394   Pixmap gray;
 395
 396 #ifdef HAVE_X_I18N
 397   /* XIM (X Input method).  */
 398   XIM xim;
 399   XIMStyles *xim_styles;
 400   struct xim_inst_t *xim_callback_data;
 401 #endif
 402
 403   /* A cache mapping color names to RGB values.  */
 404   struct color_name_cache_entry *color_names;
 405
 406   /* If non-null, a cache of the colors in the color map.  Don't
 407      use this directly, call x_color_cells instead.  */
 408   XColor *color_cells;
 409   int ncolor_cells;
 410
 411   /* Bits and shifts to use to compose pixel values on TrueColor visuals.  */
 412   int red_bits, blue_bits, green_bits;
 413   int red_offset, blue_offset, green_offset;
 414
 415   /* The type of window manager we have.  If we move FRAME_OUTER_WINDOW
 416      to x/y 0/0, some window managers (type A) puts the window manager
 417      decorations outside the screen and FRAME_OUTER_WINDOW exactly at 0/0.
 418      Other window managers (type B) puts the window including decorations
 419      at 0/0, so FRAME_OUTER_WINDOW is a bit below 0/0.
 420      Record the type of WM in use so we can compensate for type A WMs.  */
 421   enum
 422     {
 423       X_WMTYPE_UNKNOWN,
 424       X_WMTYPE_A,
 425       X_WMTYPE_B
 426     } wm_type;
 427
 428
 429   /* Atoms that are drag and drop atoms */
 430   Atom *x_dnd_atoms;
 431   ptrdiff_t x_dnd_atoms_size;
 432   ptrdiff_t x_dnd_atoms_length;
 433
 434   /* Extended window manager hints, Atoms supported by the window manager and
 435      atoms for setting the window type.  */
 436   Atom Xatom_net_supported, Xatom_net_supporting_wm_check;
 437   Atom *net_supported_atoms;
 438   int nr_net_supported_atoms;
 439   Window net_supported_window;
 440   Atom Xatom_net_window_type, Xatom_net_window_type_tooltip;
 441   Atom Xatom_net_active_window;
 442
 443   /* Atoms dealing with EWMH (i.e. _NET_...) */
 444   Atom Xatom_net_wm_state, Xatom_net_wm_state_fullscreen,
 445     Xatom_net_wm_state_maximized_horz, Xatom_net_wm_state_maximized_vert,
 446     Xatom_net_wm_state_sticky, Xatom_net_wm_state_hidden,
 447     Xatom_net_frame_extents,
 448     Xatom_net_current_desktop, Xatom_net_workarea;
 449
 450   /* XSettings atoms and windows.  */
 451   Atom Xatom_xsettings_sel, Xatom_xsettings_prop, Xatom_xsettings_mgr;
 452   Window xsettings_window;
 453
 454   /* Frame name and icon name */
 455   Atom Xatom_net_wm_name, Xatom_net_wm_icon_name;
 456   /* Frame opacity */
 457   Atom Xatom_net_wm_window_opacity;
 458
 459   /* SM */
 460   Atom Xatom_SM_CLIENT_ID;
 461
 462 #ifdef HAVE_XRANDR
 463   int xrandr_major_version;
 464   int xrandr_minor_version;
 465 #endif
 466
 467 #ifdef USE_CAIRO
 468   XExtCodes *ext_codes;
 469 #endif
 470
 471 #ifdef USE_XCB
 472   xcb_connection_t *xcb_connection;
 473 #endif
 474 };
 475
 476 #ifdef HAVE_X_I18N
 477 /* Whether or not to use XIM if we have it.  */
 478 extern bool use_xim;
 479 #endif
 480
 481 /* This is a chain of structures for all the X displays currently in use.  */
 482 extern struct x_display_info *x_display_list;
 483
 484 extern struct x_display_info *x_display_info_for_display (Display *);
 485 extern struct frame *x_top_window_to_frame (struct x_display_info *, int);
 486 extern struct x_display_info *x_term_init (Lisp_Object, char *, char *);
 487 extern bool x_display_ok (const char *);
 488
 489 extern void select_visual (struct x_display_info *);
 490
 491 /* Each X frame object points to its own struct x_output object
 492    in the output_data.x field.  The x_output structure contains
 493    the information that is specific to X windows.  */
 494
 495 struct x_output
 496 {
 497 #if defined (USE_X_TOOLKIT) || defined (USE_GTK)
 498   /* Height of menu bar widget, in pixels.  This value
 499      is not meaningful if the menubar is turned off.  */
 500   int menubar_height;
 501 #endif
 502
 503   /* Height of tool bar widget, in pixels.  top_height is used if tool bar
 504      at top, bottom_height if tool bar is at the bottom.
 505      Zero if not using an external tool bar or if tool bar is vertical.  */
 506   int toolbar_top_height, toolbar_bottom_height;
 507
 508   /* Width of tool bar widget, in pixels.  left_width is used if tool bar
 509      at left, right_width if tool bar is at the right.
 510      Zero if not using an external tool bar or if tool bar is horizontal.  */
 511   int toolbar_left_width, toolbar_right_width;
 512
 513   /* The tiled border used when the mouse is out of the frame.  */
 514   Pixmap border_tile;
 515
 516   /* Here are the Graphics Contexts for the default font.  */
 517   GC normal_gc;                         /* Normal video */
 518   GC reverse_gc;                        /* Reverse video */
 519   GC cursor_gc;                         /* cursor drawing */
 520
 521   /* The X window used for this frame.
 522      May be zero while the frame object is being created
 523      and the X window has not yet been created.  */
 524   Window window_desc;
 525
 526   /* The X window used for the bitmap icon;
 527      or 0 if we don't have a bitmap icon.  */
 528   Window icon_desc;
 529
 530   /* The X window that is the parent of this X window.
 531      Usually this is a window that was made by the window manager,
 532      but it can be the root window, and it can be explicitly specified
 533      (see the explicit_parent field, below).  */
 534   Window parent_desc;
 535
 536 #ifdef USE_X_TOOLKIT
 537   /* The widget of this screen.  This is the window of a "shell" widget.  */
 538   Widget widget;
 539   /* The XmPanedWindows...  */
 540   Widget column_widget;
 541   /* The widget of the edit portion of this screen; the window in
 542      "window_desc" is inside of this.  */
 543   Widget edit_widget;
 544
 545   Widget menubar_widget;
 546 #endif
 547
 548 #ifdef USE_GTK
 549   /* The widget of this screen.  This is the window of a top widget.  */
 550   GtkWidget *widget;
 551   /* The widget of the edit portion of this screen; the window in
 552      "window_desc" is inside of this.  */
 553   GtkWidget *edit_widget;
 554   /* The widget used for laying out widgets vertically.  */
 555   GtkWidget *vbox_widget;
 556   /* The widget used for laying out widgets horizontally.  */
 557   GtkWidget *hbox_widget;
 558   /* The menubar in this frame.  */
 559   GtkWidget *menubar_widget;
 560   /* The tool bar in this frame  */
 561   GtkWidget *toolbar_widget;
 562   /* True if tool bar is packed into the hbox widget (i.e. vertical).  */
 563   bool_bf toolbar_in_hbox : 1;
 564   bool_bf toolbar_is_packed : 1;
 565
 566   /* The last size hints set.  */
 567   GdkGeometry size_hints;
 568   long hint_flags;
 569
 570 #ifdef USE_GTK_TOOLTIP
 571   GtkTooltip *ttip_widget;
 572   GtkWidget *ttip_lbl;
 573   GtkWindow *ttip_window;
 574 #endif /* USE_GTK_TOOLTIP */
 575
 576 #endif /* USE_GTK */
 577
 578   /* If >=0, a bitmap index.  The indicated bitmap is used for the
 579      icon. */
 580   ptrdiff_t icon_bitmap;
 581
 582   /* Default ASCII font of this frame.  */
 583   struct font *font;
 584
 585   /* The baseline offset of the default ASCII font.  */
 586   int baseline_offset;
 587
 588   /* If a fontset is specified for this frame instead of font, this
 589      value contains an ID of the fontset, else -1.  */
 590   int fontset;
 591
 592   unsigned long cursor_pixel;
 593   unsigned long border_pixel;
 594   unsigned long mouse_pixel;
 595   unsigned long cursor_foreground_pixel;
 596
 597   /* Foreground color for scroll bars.  A value of -1 means use the
 598      default (black for non-toolkit scroll bars).  */
 599   unsigned long scroll_bar_foreground_pixel;
 600
 601   /* Background color for scroll bars.  A value of -1 means use the
 602      default (background color of the frame for non-toolkit scroll
 603      bars).  */
 604   unsigned long scroll_bar_background_pixel;
 605
 606 #if defined (USE_LUCID) && defined (USE_TOOLKIT_SCROLL_BARS)
 607   /* Top and bottom shadow colors for 3D Lucid scrollbars.
 608      -1 means let the scroll compute them itself.  */
 609   unsigned long scroll_bar_top_shadow_pixel;
 610   unsigned long scroll_bar_bottom_shadow_pixel;
 611 #endif
 612
 613   /* Descriptor for the cursor in use for this window.  */
 614   Cursor text_cursor;
 615   Cursor nontext_cursor;
 616   Cursor modeline_cursor;
 617   Cursor hand_cursor;
 618   Cursor hourglass_cursor;
 619   Cursor horizontal_drag_cursor;
 620   Cursor vertical_drag_cursor;
 621   Cursor current_cursor;
 622
 623   /* Window whose cursor is hourglass_cursor.  This window is temporarily
 624      mapped to display an hourglass cursor.  */
 625   Window hourglass_window;
 626
 627   /* These are the current window manager hints.  It seems that
 628      XSetWMHints, when presented with an unset bit in the `flags'
 629      member of the hints structure, does not leave the corresponding
 630      attribute unchanged; rather, it resets that attribute to its
 631      default value.  For example, unless you set the `icon_pixmap'
 632      field and the `IconPixmapHint' bit, XSetWMHints will forget what
 633      your icon pixmap was.  This is rather troublesome, since some of
 634      the members (for example, `input' and `icon_pixmap') want to stay
 635      the same throughout the execution of Emacs.  So, we keep this
 636      structure around, just leaving values in it and adding new bits
 637      to the mask as we go.  */
 638   XWMHints wm_hints;
 639
 640   /* This is the Emacs structure for the X display this frame is on.  */
 641   struct x_display_info *display_info;
 642
 643   /* This is a button event that wants to activate the menubar.
 644      We save it here until the command loop gets to think about it.  */
 645   XEvent *saved_menu_event;
 646
 647   /* This is the widget id used for this frame's menubar in lwlib.  */
 648 #ifdef USE_X_TOOLKIT
 649   int id;
 650 #endif
 651
 652   /* True means hourglass cursor is currently displayed.  */
 653   bool_bf hourglass_p : 1;
 654
 655   /* True means our parent is another application's window
 656      and was explicitly specified.  */
 657   bool_bf explicit_parent : 1;
 658
 659   /* True means tried already to make this frame visible.  */
 660   bool_bf asked_for_visible : 1;
 661
 662   /* True if this frame was ever previously visible.  */
 663   bool_bf has_been_visible : 1;
 664
 665   /* Xt waits for a ConfigureNotify event from the window manager in
 666      EmacsFrameSetCharSize when the shell widget is resized.  For some
 667      window managers like fvwm2 2.2.5 and KDE 2.1 this event doesn't
 668      arrive for an unknown reason and Emacs hangs in Xt.  If this is
 669      false, tell Xt not to wait.  */
 670   bool_bf wait_for_wm : 1;
 671
 672 #ifdef HAVE_X_I18N
 673   /* Input context (currently, this means Compose key handler setup).  */
 674   XIC xic;
 675   XIMStyle xic_style;
 676   XFontSet xic_xfs;
 677 #endif
 678
 679   /* Relief GCs, colors etc.  */
 680   struct relief
 681   {
 682     GC gc;
 683     unsigned long pixel;
 684   }
 685   black_relief, white_relief;
 686
 687   /* The background for which the above relief GCs were set up.
 688      They are changed only when a different background is involved.  */
 689   unsigned long relief_background;
 690
 691   /* Keep track of focus.  May be EXPLICIT if we received a FocusIn for this
 692      frame, or IMPLICIT if we received an EnterNotify.
 693      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 694   int focus_state;
 695
 696   /* The offset we need to add to compensate for type A WMs.  */
 697   int move_offset_top;
 698   int move_offset_left;
 699
 700 /* Extreme 'short' and 'long' values suitable for libX11.  */
 701 #define X_SHRT_MAX 0x7fff
 702 #define X_SHRT_MIN (-1 - X_SHRT_MAX)
 703 #define X_LONG_MAX 0x7fffffff
 704 #define X_LONG_MIN (-1 - X_LONG_MAX)
 705 #define X_ULONG_MAX 0xffffffffUL
 706
 707 #ifdef USE_CAIRO
 708   /* Cairo drawing context.  */
 709   cairo_t *cr_context;
 710   /* Cairo surface for double buffering */
 711   cairo_surface_t *cr_surface;
 712 #endif
 713 };
 714
 715 #define No_Cursor (None)
 716
 717 enum
 718 {
 719   /* Values for focus_state, used as bit mask.
 720      EXPLICIT means we received a FocusIn for the frame and know it has
 721      the focus.  IMPLICIT means we received an EnterNotify and the frame
 722      may have the focus if no window manager is running.
 723      FocusOut and LeaveNotify clears EXPLICIT/IMPLICIT. */
 724   FOCUS_NONE     = 0,
 725   FOCUS_IMPLICIT = 1,
 726   FOCUS_EXPLICIT = 2
 727 };
 728
 729
 730 /* Return the X output data for frame F.  */
 731 #define FRAME_X_OUTPUT(f) ((f)->output_data.x)
 732
 733 /* Return the X window used for displaying data in frame F.  */
 734 #define FRAME_X_WINDOW(f) ((f)->output_data.x->window_desc)
 735
 736 /* Return the outermost X window associated with the frame F.  */
 737 #ifdef USE_X_TOOLKIT
 738 #define FRAME_OUTER_WINDOW(f) ((f)->output_data.x->widget ?             \
 739                                XtWindow ((f)->output_data.x->widget) :  \
 740                                FRAME_X_WINDOW (f))
 741 #else
 742 #ifdef USE_GTK
 743 /* Functions not present in older Gtk+ */
 744
 745 #ifndef HAVE_GTK_WIDGET_GET_WINDOW
 746 #define gtk_widget_get_window(w) ((w)->window)
 747 #endif
 748 #ifndef HAVE_GTK_WIDGET_GET_MAPPED
 749 #define gtk_widget_get_mapped(w) (GTK_WIDGET_MAPPED (w))
 750 #endif
 751 #ifndef HAVE_GTK_ADJUSTMENT_GET_PAGE_SIZE
 752 #define gtk_adjustment_get_page_size(w) ((w)->page_size)
 753 #define gtk_adjustment_get_upper(w) ((w)->upper)
 754 #endif
 755
 756 #ifdef HAVE_GTK3
 757 #define DEFAULT_GDK_DISPLAY() \
 758   gdk_x11_display_get_xdisplay (gdk_display_get_default ())
 759 #else
 760 #undef GDK_WINDOW_XID
 761 #define GDK_WINDOW_XID(w) GDK_WINDOW_XWINDOW (w)
 762 #define DEFAULT_GDK_DISPLAY() GDK_DISPLAY ()
 763 #define gtk_widget_get_preferred_size(a, ign, b) \
 764   gtk_widget_size_request (a, b)
 765 #endif
 766
 767 #define GTK_WIDGET_TO_X_WIN(w) \
 768   ((w) && gtk_widget_get_window (w) \
 769    ? GDK_WINDOW_XID (gtk_widget_get_window (w)) : 0)
 770
 771 #define FRAME_GTK_OUTER_WIDGET(f) ((f)->output_data.x->widget)
 772 #define FRAME_GTK_WIDGET(f) ((f)->output_data.x->edit_widget)
 773 #define FRAME_OUTER_WINDOW(f)                                   \
 774        (FRAME_GTK_OUTER_WIDGET (f) ?                            \
 775         GTK_WIDGET_TO_X_WIN (FRAME_GTK_OUTER_WIDGET (f)) :      \
 776          FRAME_X_WINDOW (f))
 777
 778 #else /* !USE_GTK */
 779 #define FRAME_OUTER_WINDOW(f) (FRAME_X_WINDOW (f))
 780 #endif /* !USE_GTK */
 781 #endif
 782
 783 #if defined (USE_X_TOOLKIT) || defined (USE_GTK)
 784 #define FRAME_MENUBAR_HEIGHT(f) ((f)->output_data.x->menubar_height)
 785 #else
 786 #define FRAME_MENUBAR_HEIGHT(f) ((void) f, 0)
 787 #endif /* USE_X_TOOLKIT || USE_GTK */
 788
 789 #define FRAME_FONT(f) ((f)->output_data.x->font)
 790 #define FRAME_FONTSET(f) ((f)->output_data.x->fontset)
 791 #define FRAME_TOOLBAR_TOP_HEIGHT(f) ((f)->output_data.x->toolbar_top_height)
 792 #define FRAME_TOOLBAR_BOTTOM_HEIGHT(f) \
 793   ((f)->output_data.x->toolbar_bottom_height)
 794 #define FRAME_TOOLBAR_HEIGHT(f) \
 795   (FRAME_TOOLBAR_TOP_HEIGHT (f) + FRAME_TOOLBAR_BOTTOM_HEIGHT (f))
 796 #define FRAME_TOOLBAR_LEFT_WIDTH(f) ((f)->output_data.x->toolbar_left_width)
 797 #define FRAME_TOOLBAR_RIGHT_WIDTH(f) ((f)->output_data.x->toolbar_right_width)
 798 #define FRAME_TOOLBAR_WIDTH(f) \
 799   (FRAME_TOOLBAR_LEFT_WIDTH (f) + FRAME_TOOLBAR_RIGHT_WIDTH (f))
 800 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.x->baseline_offset)
 801
 802 /* This gives the x_display_info structure for the display F is on.  */
 803 #define FRAME_DISPLAY_INFO(f) ((f)->output_data.x->display_info)
 804
 805 /* This is the `Display *' which frame F is on.  */
 806 #define FRAME_X_DISPLAY(f) (FRAME_DISPLAY_INFO (f)->display)
 807
 808 /* This is the `Screen *' which frame F is on.  */
 809 #define FRAME_X_SCREEN(f) (FRAME_DISPLAY_INFO (f)->screen)
 810
 811 /* This is the screen index number of screen which frame F is on.  */
 812 #define FRAME_X_SCREEN_NUMBER(f) XScreenNumberOfScreen (FRAME_X_SCREEN (f))
 813
 814 /* This is the Visual which frame F is on.  */
 815 #define FRAME_X_VISUAL(f) FRAME_DISPLAY_INFO (f)->visual
 816
 817 /* This is the Colormap which frame F uses.  */
 818 #define FRAME_X_COLORMAP(f) FRAME_DISPLAY_INFO (f)->cmap
 819
 820 #define FRAME_XIC(f) ((f)->output_data.x->xic)
 821 #define FRAME_X_XIM(f) (FRAME_DISPLAY_INFO (f)->xim)
 822 #define FRAME_X_XIM_STYLES(f) (FRAME_DISPLAY_INFO (f)->xim_styles)
 823 #define FRAME_XIC_STYLE(f) ((f)->output_data.x->xic_style)
 824 #define FRAME_XIC_FONTSET(f) ((f)->output_data.x->xic_xfs)
 825
 826 /* X-specific scroll bar stuff.  */
 827
 828 /* We represent scroll bars as lisp vectors.  This allows us to place
 829    references to them in windows without worrying about whether we'll
 830    end up with windows referring to dead scroll bars; the garbage
 831    collector will free it when its time comes.
 832
 833    We use struct scroll_bar as a template for accessing fields of the
 834    vector.  */
 835
 836 struct scroll_bar
 837 {
 838   /* These fields are shared by all vectors.  */
 839   struct vectorlike_header header;
 840
 841   /* The window we're a scroll bar for.  */
 842   Lisp_Object window;
 843
 844   /* The next and previous in the chain of scroll bars in this frame.  */
 845   Lisp_Object next, prev;
 846
 847   /* Fields from `x_window' down will not be traced by the GC.  */
 848
 849   /* The X window representing this scroll bar.  */
 850   Window x_window;
 851
 852   /* The position and size of the scroll bar in pixels, relative to the
 853      frame.  */
 854   int top, left, width, height;
 855
 856   /* The starting and ending positions of the handle, relative to the
 857      handle area (i.e. zero is the top position, not
 858      SCROLL_BAR_TOP_BORDER).  If they're equal, that means the handle
 859      hasn't been drawn yet.
 860
 861      These are not actually the locations where the beginning and end
 862      are drawn; in order to keep handles from becoming invisible when
 863      editing large files, we establish a minimum height by always
 864      drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below
 865      where they would be normally; the bottom and top are in a
 866      different co-ordinate system.  */
 867   int start, end;
 868
 869   /* If the scroll bar handle is currently being dragged by the user,
 870      this is the number of pixels from the top of the handle to the
 871      place where the user grabbed it.  If the handle isn't currently
 872      being dragged, this is -1.  */
 873   int dragging;
 874
 875 #if defined (USE_TOOLKIT_SCROLL_BARS) && defined (USE_LUCID)
 876   /* Last scroll bar part seen in xaw_jump_callback and xaw_scroll_callback.  */
 877   enum scroll_bar_part last_seen_part;
 878 #endif
 879
 880 #if defined (USE_TOOLKIT_SCROLL_BARS) && !defined (USE_GTK)
 881   /* Last value of whole for horizontal scrollbars.  */
 882   int whole;
 883 #endif
 884
 885   /* True if the scroll bar is horizontal.  */
 886   bool horizontal;
 887 };
 888
 889 /* Turning a lisp vector value into a pointer to a struct scroll_bar.  */
 890 #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec))
 891
 892 #ifdef USE_X_TOOLKIT
 893
 894 /* Extract the X widget of the scroll bar from a struct scroll_bar.
 895    XtWindowToWidget should be fast enough since Xt uses a hash table
 896    to map windows to widgets.  */
 897
 898 #define SCROLL_BAR_X_WIDGET(dpy, ptr) \
 899   XtWindowToWidget (dpy, ptr->x_window)
 900
 901 /* Store a widget id in a struct scroll_bar.  */
 902
 903 #define SET_SCROLL_BAR_X_WIDGET(ptr, w)         \
 904   do {                                          \
 905     Window window = XtWindow (w);               \
 906     ptr->x_window = window;                     \
 907   } while (false)
 908
 909 #endif /* USE_X_TOOLKIT */
 910
 911 /* Return the inside width of a vertical scroll bar, given the outside
 912    width.  */
 913 #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f, width) \
 914   ((width) \
 915    - VERTICAL_SCROLL_BAR_LEFT_BORDER \
 916    - VERTICAL_SCROLL_BAR_RIGHT_BORDER)
 917
 918 /* Return the length of the rectangle within which the top of the
 919    handle must stay.  This isn't equivalent to the inside height,
 920    because the scroll bar handle has a minimum height.
 921
 922    This is the real range of motion for the scroll bar, so when we're
 923    scaling buffer positions to scroll bar positions, we use this, not
 924    VERTICAL_SCROLL_BAR_INSIDE_HEIGHT.  */
 925 #define VERTICAL_SCROLL_BAR_TOP_RANGE(f, height) \
 926   (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE)
 927
 928 /* Return the inside height of vertical scroll bar, given the outside
 929    height.  See VERTICAL_SCROLL_BAR_TOP_RANGE too.  */
 930 #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f, height) \
 931   ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER)
 932
 933 /* Return the inside height of a horizontal scroll bar, given the outside
 934    height.  */
 935 #define HORIZONTAL_SCROLL_BAR_INSIDE_HEIGHT(f, height)  \
 936   ((height) \
 937    - HORIZONTAL_SCROLL_BAR_TOP_BORDER \
 938    - HORIZONTAL_SCROLL_BAR_BOTTOM_BORDER)
 939
 940 /* Return the length of the rectangle within which the left part of the
 941    handle must stay.  This isn't equivalent to the inside width, because
 942    the scroll bar handle has a minimum width.
 943
 944    This is the real range of motion for the scroll bar, so when we're
 945    scaling buffer positions to scroll bar positions, we use this, not
 946    HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH.  */
 947 #define HORIZONTAL_SCROLL_BAR_LEFT_RANGE(f, width) \
 948   (HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH (f, width) - HORIZONTAL_SCROLL_BAR_MIN_HANDLE)
 949
 950 /* Return the inside width of horizontal scroll bar, given the outside
 951    width.  See HORIZONTAL_SCROLL_BAR_LEFT_RANGE too.  */
 952 #define HORIZONTAL_SCROLL_BAR_INSIDE_WIDTH(f, width) \
 953   ((width) - HORIZONTAL_SCROLL_BAR_LEFT_BORDER - HORIZONTAL_SCROLL_BAR_LEFT_BORDER)
 954
 955
 956 /* Border widths for scroll bars.
 957
 958    Scroll bar windows don't have any X borders; their border width is
 959    set to zero, and we redraw borders ourselves.  This makes the code
 960    a bit cleaner, since we don't have to convert between outside width
 961    (used when relating to the rest of the screen) and inside width
 962    (used when sizing and drawing the scroll bar window itself).
 963
 964    The handle moves up and down/back and forth in a rectangle inset
 965    from the edges of the scroll bar.  These are widths by which we
 966    inset the handle boundaries from the scroll bar edges.  */
 967 #define VERTICAL_SCROLL_BAR_LEFT_BORDER (2)
 968 #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (2)
 969 #define VERTICAL_SCROLL_BAR_TOP_BORDER (2)
 970 #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (2)
 971
 972 #define HORIZONTAL_SCROLL_BAR_LEFT_BORDER (2)
 973 #define HORIZONTAL_SCROLL_BAR_RIGHT_BORDER (2)
 974 #define HORIZONTAL_SCROLL_BAR_TOP_BORDER (2)
 975 #define HORIZONTAL_SCROLL_BAR_BOTTOM_BORDER (2)
 976
 977 /* Minimum lengths for scroll bar handles, in pixels.  */
 978 #define VERTICAL_SCROLL_BAR_MIN_HANDLE (5)
 979 #define HORIZONTAL_SCROLL_BAR_MIN_HANDLE (5)
 980
 981 /* If a struct input_event has a kind which is SELECTION_REQUEST_EVENT
 982    or SELECTION_CLEAR_EVENT, then its contents are really described
 983    by this structure.  */
 984
 985 /* For an event of kind SELECTION_REQUEST_EVENT,
 986    this structure really describes the contents.  */
 987
 988 struct selection_input_event
 989 {
 990   ENUM_BF (event_kind) kind : EVENT_KIND_WIDTH;
 991   struct x_display_info *dpyinfo;
 992   /* We spell it with an "o" here because X does.  */
 993   Window requestor;
 994   Atom selection, target, property;
 995   Time time;
 996 };
 997
 998 /* Unlike macros below, this can't be used as an lvalue.  */
 999 INLINE Display *
1000 SELECTION_EVENT_DISPLAY (struct selection_input_event *ev)
1001 {
1002   return ev->dpyinfo->display;
1003 }
1004 #define SELECTION_EVENT_DPYINFO(eventp) \
1005   ((eventp)->dpyinfo)
1006 /* We spell it with an "o" here because X does.  */
1007 #define SELECTION_EVENT_REQUESTOR(eventp)       \
1008   ((eventp)->requestor)
1009 #define SELECTION_EVENT_SELECTION(eventp)       \
1010   ((eventp)->selection)
1011 #define SELECTION_EVENT_TARGET(eventp)  \
1012   ((eventp)->target)
1013 #define SELECTION_EVENT_PROPERTY(eventp)        \
1014   ((eventp)->property)
1015 #define SELECTION_EVENT_TIME(eventp)    \
1016   ((eventp)->time)
1017
1018 /* From xfns.c.  */
1019
1020 extern void x_free_gcs (struct frame *);
1021 extern void x_relative_mouse_position (struct frame *, int *, int *);
1022 extern void x_real_pos_and_offsets (struct frame *f,
1023                                     int *left_offset_x,
1024                                     int *right_offset_x,
1025                                     int *top_offset_y,
1026                                     int *bottom_offset_y,
1027                                     int *x_pixels_diff,
1028                                     int *y_pixels_diff,
1029                                     int *xptr,
1030                                     int *yptr,
1031                                     int *outer_border);
1032
1033 /* From xrdb.c.  */
1034
1035 XrmDatabase x_load_resources (Display *, const char *, const char *,
1036                               const char *);
1037
1038 /* Defined in xterm.c */
1039
1040 typedef void (*x_special_error_handler)(Display *, XErrorEvent *, char *,
1041                                         void *);
1042
1043 extern bool x_text_icon (struct frame *, const char *);
1044 extern void x_catch_errors (Display *);
1045 extern void x_catch_errors_with_handler (Display *, x_special_error_handler,
1046                                          void *);
1047 extern void x_check_errors (Display *, const char *)
1048   ATTRIBUTE_FORMAT_PRINTF (2, 0);
1049 extern bool x_had_errors_p (Display *);
1050 extern void x_uncatch_errors (void);
1051 extern void x_uncatch_errors_after_check (void);
1052 extern void x_clear_errors (Display *);
1053 extern void xembed_request_focus (struct frame *);
1054 extern void x_ewmh_activate_frame (struct frame *);
1055 extern void x_delete_terminal (struct terminal *terminal);
1056 extern unsigned long x_copy_color (struct frame *, unsigned long);
1057 #ifdef USE_X_TOOLKIT
1058 extern XtAppContext Xt_app_con;
1059 extern void x_activate_timeout_atimer (void);
1060 #endif
1061 #ifdef USE_LUCID
1062 extern bool x_alloc_lighter_color_for_widget (Widget, Display *, Colormap,
1063                                               unsigned long *,
1064                                               double, int);
1065 #endif
1066 extern bool x_alloc_nearest_color (struct frame *, Colormap, XColor *);
1067 extern void x_query_color (struct frame *f, XColor *);
1068 extern void x_clear_area (struct frame *f, int, int, int, int);
1069 #if !defined USE_X_TOOLKIT && !defined USE_GTK
1070 extern void x_mouse_leave (struct x_display_info *);
1071 #endif
1072
1073 #if defined USE_X_TOOLKIT || defined USE_MOTIF
1074 extern int x_dispatch_event (XEvent *, Display *);
1075 #endif
1076 extern int x_x_to_emacs_modifiers (struct x_display_info *, int);
1077 #ifdef USE_CAIRO
1078 extern cairo_t *x_begin_cr_clip (struct frame *, GC);
1079 extern void x_end_cr_clip (struct frame *);
1080 extern void x_set_cr_source_with_gc_foreground (struct frame *, GC);
1081 extern void x_set_cr_source_with_gc_background (struct frame *, GC);
1082 extern void x_cr_draw_frame (cairo_t *, struct frame *);
1083 extern Lisp_Object x_cr_export_frames (Lisp_Object, cairo_surface_type_t);
1084 #endif
1085
1086 INLINE int
1087 x_display_pixel_height (struct x_display_info *dpyinfo)
1088 {
1089   return HeightOfScreen (dpyinfo->screen);
1090 }
1091
1092 INLINE int
1093 x_display_pixel_width (struct x_display_info *dpyinfo)
1094 {
1095   return WidthOfScreen (dpyinfo->screen);
1096 }
1097
1098 INLINE void
1099 x_display_set_last_user_time (struct x_display_info *dpyinfo, Time t)
1100 {
1101 #ifdef ENABLE_CHECKING
1102   eassert (t <= X_ULONG_MAX);
1103 #endif
1104   dpyinfo->last_user_time = t;
1105 }
1106
1107 INLINE unsigned long
1108 x_make_truecolor_pixel (struct x_display_info *dpyinfo, int r, int g, int b)
1109 {
1110   unsigned long pr, pg, pb;
1111
1112   /* Scale down RGB values to the visual's bits per RGB, and shift
1113      them to the right position in the pixel color.  Note that the
1114      original RGB values are 16-bit values, as usual in X.  */
1115   pr = (r >> (16 - dpyinfo->red_bits))   << dpyinfo->red_offset;
1116   pg = (g >> (16 - dpyinfo->green_bits)) << dpyinfo->green_offset;
1117   pb = (b >> (16 - dpyinfo->blue_bits))  << dpyinfo->blue_offset;
1118
1119   /* Assemble the pixel color.  */
1120   return pr | pg | pb;
1121 }
1122
1123 /* If display has an immutable color map, freeing colors is not
1124    necessary and some servers don't allow it, so we won't do it.  That
1125    also allows us to make other optimizations relating to server-side
1126    reference counts.  */
1127 INLINE bool
1128 x_mutable_colormap (Visual *visual)
1129 {
1130   int class = visual->class;
1131   return (class != StaticColor && class != StaticGray && class != TrueColor);
1132 }
1133
1134 extern void x_set_sticky (struct frame *, Lisp_Object, Lisp_Object);
1135 extern bool x_wm_supports (struct frame *, Atom);
1136 extern void x_wait_for_event (struct frame *, int);
1137 extern void x_clear_under_internal_border (struct frame *f);
1138
1139 /* Defined in xselect.c.  */
1140
1141 extern void x_handle_property_notify (const XPropertyEvent *);
1142 extern void x_handle_selection_notify (const XSelectionEvent *);
1143 extern void x_handle_selection_event (struct selection_input_event *);
1144 extern void x_clear_frame_selections (struct frame *);
1145
1146 extern void x_send_client_event (Lisp_Object display,
1147                                  Lisp_Object dest,
1148                                  Lisp_Object from,
1149                                  Atom message_type,
1150                                  Lisp_Object format,
1151                                  Lisp_Object values);
1152
1153 extern bool x_handle_dnd_message (struct frame *,
1154                                   const XClientMessageEvent *,
1155                                   struct x_display_info *,
1156                                   struct input_event *);
1157 extern int x_check_property_data (Lisp_Object);
1158 extern void x_fill_property_data (Display *,
1159                                   Lisp_Object,
1160                                   void *,
1161                                   int);
1162 extern Lisp_Object x_property_data_to_lisp (struct frame *,
1163                                             const unsigned char *,
1164                                             Atom,
1165                                             int,
1166                                             unsigned long);
1167 extern void x_clipboard_manager_save_frame (Lisp_Object);
1168 extern void x_clipboard_manager_save_all (void);
1169
1170 #ifdef USE_GTK
1171 extern bool xg_set_icon (struct frame *, Lisp_Object);
1172 extern bool xg_set_icon_from_xpm_data (struct frame *, const char **);
1173 #endif /* USE_GTK */
1174
1175 extern void xic_free_xfontset (struct frame *);
1176 extern void create_frame_xic (struct frame *);
1177 extern void destroy_frame_xic (struct frame *);
1178 extern void xic_set_preeditarea (struct window *, int, int);
1179 extern void xic_set_statusarea (struct frame *);
1180 extern void xic_set_xfontset (struct frame *, const char *);
1181 extern bool x_defined_color (struct frame *, const char *, XColor *, bool);
1182 #ifdef HAVE_X_I18N
1183 extern void free_frame_xic (struct frame *);
1184 # if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
1185 extern char *xic_create_fontsetname (const char *, bool);
1186 # endif
1187 #endif
1188
1189 /* Defined in xfaces.c */
1190
1191 #ifdef USE_X_TOOLKIT
1192 extern void x_free_dpy_colors (Display *, Screen *, Colormap,
1193                                unsigned long *, int);
1194 #endif /* USE_X_TOOLKIT */
1195
1196 /* Defined in xmenu.c */
1197
1198 #if defined USE_X_TOOLKIT || defined USE_GTK
1199 extern Lisp_Object xw_popup_dialog (struct frame *, Lisp_Object, Lisp_Object);
1200 #endif
1201
1202 #if defined USE_GTK || defined USE_MOTIF
1203 extern void x_menu_set_in_use (bool);
1204 #endif
1205 extern void x_menu_wait_for_event (void *data);
1206 extern void initialize_frame_menubar (struct frame *);
1207
1208 /* Defined in xsmfns.c */
1209 #ifdef HAVE_X_SM
1210 extern void x_session_initialize (struct x_display_info *dpyinfo);
1211 extern bool x_session_have_connection (void);
1212 extern void x_session_close (void);
1213 #endif
1214
1215
1216 /* Is the frame embedded into another application? */
1217
1218 #define FRAME_X_EMBEDDED_P(f) (FRAME_X_OUTPUT(f)->explicit_parent != 0)
1219
1220 #define STORE_XCHAR2B(chp, b1, b2) \
1221   ((chp)->byte1 = (b1), (chp)->byte2 = (b2))
1222
1223 #define XCHAR2B_BYTE1(chp) \
1224   ((chp)->byte1)
1225
1226 #define XCHAR2B_BYTE2(chp) \
1227   ((chp)->byte2)
1228
1229 #define STORE_NATIVE_RECT(nr,rx,ry,rwidth,rheight)      \
1230   ((nr).x = (rx),                                       \
1231    (nr).y = (ry),                                       \
1232    (nr).width = (rwidth),                               \
1233    (nr).height = (rheight))
1234
1235 INLINE_HEADER_END
1236
1237 #endif /* XTERM_H */