Pileus Git - ~andy/gtk/blob - gdk/gdkinternals.h

   1 /* GDK - The GIMP Drawing Kit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 /* Uninstalled header defining types and functions internal to GDK */
  28
  29 #ifndef __GDK_INTERNALS_H__
  30 #define __GDK_INTERNALS_H__
  31
  32 #include <gio/gio.h>
  33 #include <gdk/gdktypes.h>
  34 #include <gdk/gdkwindow.h>
  35 #include <gdk/gdkprivate.h>
  36 #ifdef USE_MEDIALIB
  37 #include <gdk/gdkmedialib.h>
  38 #endif
  39
  40 G_BEGIN_DECLS
  41
  42 /**********************
  43  * General Facilities *
  44  **********************/
  45
  46 /* Debugging support */
  47
  48 typedef struct _GdkColorInfo           GdkColorInfo;
  49 typedef struct _GdkEventFilter         GdkEventFilter;
  50 typedef struct _GdkClientFilter        GdkClientFilter;
  51
  52 typedef enum {
  53   GDK_COLOR_WRITEABLE = 1 << 0
  54 } GdkColorInfoFlags;
  55
  56 struct _GdkColorInfo
  57 {
  58   GdkColorInfoFlags flags;
  59   guint ref_count;
  60 };
  61
  62 struct _GdkEventFilter {
  63   GdkFilterFunc function;
  64   gpointer data;
  65 };
  66
  67 struct _GdkClientFilter {
  68   GdkAtom       type;
  69   GdkFilterFunc function;
  70   gpointer      data;
  71 };
  72
  73 typedef enum {
  74   GDK_DEBUG_MISC          = 1 << 0,
  75   GDK_DEBUG_EVENTS        = 1 << 1,
  76   GDK_DEBUG_DND           = 1 << 2,
  77   GDK_DEBUG_XIM           = 1 << 3,
  78   GDK_DEBUG_NOGRABS       = 1 << 4,
  79   GDK_DEBUG_COLORMAP      = 1 << 5,
  80   GDK_DEBUG_GDKRGB        = 1 << 6,
  81   GDK_DEBUG_GC            = 1 << 7,
  82   GDK_DEBUG_PIXMAP        = 1 << 8,
  83   GDK_DEBUG_IMAGE         = 1 << 9,
  84   GDK_DEBUG_INPUT         = 1 <<10,
  85   GDK_DEBUG_CURSOR        = 1 <<11,
  86   GDK_DEBUG_MULTIHEAD     = 1 <<12,
  87   GDK_DEBUG_XINERAMA      = 1 <<13,
  88   GDK_DEBUG_DRAW          = 1 <<14,
  89   GDK_DEBUG_EVENTLOOP     = 1 <<15
  90 } GdkDebugFlag;
  91
  92 #ifndef GDK_DISABLE_DEPRECATED
  93
  94 typedef struct _GdkFontPrivate         GdkFontPrivate;
  95
  96 struct _GdkFontPrivate
  97 {
  98   GdkFont font;
  99   guint ref_count;
 100 };
 101
 102 #endif /* GDK_DISABLE_DEPRECATED */
 103
 104 extern GList            *_gdk_default_filters;
 105 extern GdkWindow        *_gdk_parent_root;
 106 extern gint              _gdk_error_code;
 107 extern gint              _gdk_error_warnings;
 108
 109 extern guint _gdk_debug_flags;
 110
 111 #ifdef G_ENABLE_DEBUG
 112
 113 #define GDK_NOTE(type,action)                G_STMT_START { \
 114     if (_gdk_debug_flags & GDK_DEBUG_##type)                \
 115        { action; };                          } G_STMT_END
 116
 117 #else /* !G_ENABLE_DEBUG */
 118
 119 #define GDK_NOTE(type,action)
 120
 121 #endif /* G_ENABLE_DEBUG */
 122
 123 /* Arg parsing */
 124
 125 typedef enum
 126 {
 127   GDK_ARG_STRING,
 128   GDK_ARG_INT,
 129   GDK_ARG_BOOL,
 130   GDK_ARG_NOBOOL,
 131   GDK_ARG_CALLBACK
 132 } GdkArgType;
 133
 134 typedef struct _GdkArgContext GdkArgContext;
 135 typedef struct _GdkArgDesc GdkArgDesc;
 136
 137 typedef void (*GdkArgFunc) (const char *name, const char *arg, gpointer data);
 138
 139 struct _GdkArgContext
 140 {
 141   GPtrArray *tables;
 142   gpointer cb_data;
 143 };
 144
 145 struct _GdkArgDesc
 146 {
 147   const char *name;
 148   GdkArgType type;
 149   gpointer location;
 150   GdkArgFunc callback;
 151 };
 152
 153 /* Event handling */
 154
 155 typedef struct _GdkEventPrivate GdkEventPrivate;
 156
 157 typedef enum
 158 {
 159   /* Following flag is set for events on the event queue during
 160    * translation and cleared afterwards.
 161    */
 162   GDK_EVENT_PENDING = 1 << 0
 163 } GdkEventFlags;
 164
 165 struct _GdkEventPrivate
 166 {
 167   GdkEvent   event;
 168   guint      flags;
 169   GdkScreen *screen;
 170   gpointer   windowing_data;
 171 };
 172
 173 /* Tracks information about the pointer grab on this display */
 174 typedef struct
 175 {
 176   GdkWindow *window;
 177   GdkWindow *native_window;
 178   gulong serial_start;
 179   gulong serial_end; /* exclusive, i.e. not active on serial_end */
 180   gboolean owner_events;
 181   guint event_mask;
 182   gboolean implicit;
 183   guint32 time;
 184
 185   gboolean activated;
 186   gboolean implicit_ungrab;
 187   gboolean grab_one_pointer_release_event;
 188 } GdkPointerGrabInfo;
 189
 190 typedef struct _GdkInputWindow GdkInputWindow;
 191
 192 /* Private version of GdkWindowObject. The initial part of this strucuture
 193    is public for historical reasons. Don't change that part */
 194 typedef struct _GdkWindowPaint             GdkWindowPaint;
 195
 196 struct _GdkWindowObject
 197 {
 198   /* vvvvvvv THIS PART IS PUBLIC. DON'T CHANGE vvvvvvvvvvvvvv */
 199   GdkDrawable parent_instance;
 200
 201   GdkDrawable *impl; /* window-system-specific delegate object */
 202
 203   GdkWindowObject *parent;
 204
 205   gpointer user_data;
 206
 207   gint x;
 208   gint y;
 209
 210   gint extension_events;
 211
 212   GList *filters;
 213   GList *children;
 214
 215   GdkColor bg_color;
 216   GdkPixmap *bg_pixmap;
 217
 218   GSList *paint_stack;
 219
 220   GdkRegion *update_area;
 221   guint update_freeze_count;
 222
 223   guint8 window_type;
 224   guint8 depth;
 225   guint8 resize_count;
 226
 227   GdkWindowState state;
 228
 229   guint guffaw_gravity : 1;
 230   guint input_only : 1;
 231   guint modal_hint : 1;
 232   guint composited : 1;
 233
 234   guint destroyed : 2;
 235
 236   guint accept_focus : 1;
 237   guint focus_on_map : 1;
 238   guint shaped : 1;
 239
 240   GdkEventMask event_mask;
 241
 242   guint update_and_descendants_freeze_count;
 243
 244   GdkWindowRedirect *redirect;
 245
 246   /* ^^^^^^^^^^ THIS PART IS PUBLIC. DON'T CHANGE ^^^^^^^^^^ */
 247
 248   /* The GdkWindowObject that has the impl, ref:ed if another window.
 249    * This ref is required to keep the wrapper of the impl window alive
 250    * for as long as any GdkWindow references the impl. */
 251   GdkWindowObject *impl_window;
 252   int abs_x, abs_y; /* Absolute offset in impl */
 253   gint width, height;
 254   guint32 clip_tag;
 255   GdkRegion *clip_region; /* Clip region (wrt toplevel) in window coords */
 256   GdkRegion *clip_region_with_children; /* Clip region in window coords */
 257   GdkCursor *cursor;
 258   gint8 toplevel_window_type;
 259   guint effective_visibility : 2;
 260   guint visibility : 2; /* The visibility wrt the toplevel (i.e. based on clip_region) */
 261   guint native_visibility : 2; /* the native visibility of a impl windows */
 262
 263   GdkWindowPaint *implicit_paint;
 264   GdkInputWindow *input_window; /* only set for impl windows */
 265
 266   GList *outstanding_moves;
 267
 268   GdkRegion *shape;
 269   GdkRegion *input_shape;
 270
 271   cairo_surface_t *cairo_surface;
 272 };
 273
 274
 275 extern GdkEventFunc   _gdk_event_func;    /* Callback for events */
 276 extern gpointer       _gdk_event_data;
 277 extern GDestroyNotify _gdk_event_notify;
 278
 279 extern GSList    *_gdk_displays;
 280 extern gchar     *_gdk_display_name;
 281 extern gint       _gdk_screen_number;
 282 extern gchar     *_gdk_display_arg_name;
 283
 284 void      _gdk_events_queue  (GdkDisplay *display);
 285 GdkEvent* _gdk_event_unqueue (GdkDisplay *display);
 286
 287 GList* _gdk_event_queue_find_first   (GdkDisplay *display);
 288 void   _gdk_event_queue_remove_link  (GdkDisplay *display,
 289                                       GList      *node);
 290 GList* _gdk_event_queue_prepend      (GdkDisplay *display,
 291                                       GdkEvent   *event);
 292 GList* _gdk_event_queue_append       (GdkDisplay *display,
 293                                       GdkEvent   *event);
 294 GList* _gdk_event_queue_insert_after (GdkDisplay *display,
 295                                       GdkEvent   *after_event,
 296                                       GdkEvent   *event);
 297 GList* _gdk_event_queue_insert_before(GdkDisplay *display,
 298                                       GdkEvent   *after_event,
 299                                       GdkEvent   *event);
 300 void   _gdk_event_button_generate    (GdkDisplay *display,
 301                                       GdkEvent   *event);
 302
 303 void _gdk_windowing_event_data_copy (const GdkEvent *src,
 304                                      GdkEvent       *dst);
 305 void _gdk_windowing_event_data_free (GdkEvent       *event);
 306
 307 void gdk_synthesize_window_state (GdkWindow     *window,
 308                                   GdkWindowState unset_flags,
 309                                   GdkWindowState set_flags);
 310
 311 #define GDK_SCRATCH_IMAGE_WIDTH 256
 312 #define GDK_SCRATCH_IMAGE_HEIGHT 64
 313
 314 GdkImage* _gdk_image_new_for_depth (GdkScreen    *screen,
 315                                     GdkImageType  type,
 316                                     GdkVisual    *visual,
 317                                     gint          width,
 318                                     gint          height,
 319                                     gint          depth);
 320 GdkImage *_gdk_image_get_scratch (GdkScreen *screen,
 321                                   gint       width,
 322                                   gint       height,
 323                                   gint       depth,
 324                                   gint      *x,
 325                                   gint      *y);
 326
 327 GdkImage *_gdk_drawable_copy_to_image (GdkDrawable  *drawable,
 328                                        GdkImage     *image,
 329                                        gint          src_x,
 330                                        gint          src_y,
 331                                        gint          dest_x,
 332                                        gint          dest_y,
 333                                        gint          width,
 334                                        gint          height);
 335
 336 cairo_surface_t *_gdk_drawable_ref_cairo_surface (GdkDrawable *drawable);
 337
 338 GdkDrawable *_gdk_drawable_get_source_drawable (GdkDrawable *drawable);
 339 cairo_surface_t * _gdk_drawable_create_cairo_surface (GdkDrawable *drawable,
 340                                                       int width,
 341                                                       int height);
 342
 343 /* GC caching */
 344 GdkGC *_gdk_drawable_get_scratch_gc (GdkDrawable *drawable,
 345                                      gboolean     graphics_exposures);
 346 GdkGC *_gdk_drawable_get_subwindow_scratch_gc (GdkDrawable *drawable);
 347
 348 void _gdk_gc_update_context (GdkGC          *gc,
 349                              cairo_t        *cr,
 350                              const GdkColor *override_foreground,
 351                              GdkBitmap      *override_stipple,
 352                              gboolean        gc_changed,
 353                              GdkDrawable    *target_drawable);
 354
 355 /*************************************
 356  * Interfaces used by windowing code *
 357  *************************************/
 358
 359 GdkPixmap *_gdk_pixmap_new               (GdkDrawable    *drawable,
 360                                           gint            width,
 361                                           gint            height,
 362                                           gint            depth);
 363 GdkPixmap *_gdk_pixmap_create_from_data  (GdkDrawable    *drawable,
 364                                           const gchar    *data,
 365                                           gint            width,
 366                                           gint            height,
 367                                           gint            depth,
 368                                           const GdkColor *fg,
 369                                           const GdkColor *bg);
 370 GdkPixmap *_gdk_bitmap_create_from_data  (GdkDrawable    *drawable,
 371                                           const gchar    *data,
 372                                           gint            width,
 373                                           gint            height);
 374
 375 void       _gdk_window_impl_new          (GdkWindow      *window,
 376                                           GdkWindow      *real_parent,
 377                                           GdkScreen      *screen,
 378                                           GdkVisual      *visual,
 379                                           GdkEventMask    event_mask,
 380                                           GdkWindowAttr  *attributes,
 381                                           gint            attributes_mask);
 382 void       _gdk_window_destroy           (GdkWindow      *window,
 383                                           gboolean        foreign_destroy);
 384 void       _gdk_window_clear_update_area (GdkWindow      *window);
 385 void       _gdk_window_update_size       (GdkWindow      *window);
 386
 387 void       _gdk_window_process_updates_recurse (GdkWindow *window,
 388                                                 GdkRegion *expose_region);
 389
 390 void       _gdk_screen_close             (GdkScreen      *screen);
 391
 392 const char *_gdk_get_sm_client_id (void);
 393
 394 void _gdk_gc_init (GdkGC           *gc,
 395                    GdkDrawable     *drawable,
 396                    GdkGCValues     *values,
 397                    GdkGCValuesMask  values_mask);
 398
 399 GdkRegion *_gdk_gc_get_clip_region (GdkGC *gc);
 400 gboolean   _gdk_gc_get_exposures   (GdkGC *gc);
 401 GdkFill    _gdk_gc_get_fill        (GdkGC *gc);
 402 GdkPixmap *_gdk_gc_get_tile        (GdkGC *gc);
 403 GdkBitmap *_gdk_gc_get_stipple     (GdkGC *gc);
 404 guint32    _gdk_gc_get_fg_pixel    (GdkGC *gc);
 405 guint32    _gdk_gc_get_bg_pixel    (GdkGC *gc);
 406 void      _gdk_gc_add_drawable_clip     (GdkGC     *gc,
 407                                          guint32    region_tag,
 408                                          GdkRegion *region,
 409                                          int        offset_x,
 410                                          int        offset_y);
 411 void      _gdk_gc_remove_drawable_clip  (GdkGC     *gc);
 412 void       _gdk_gc_set_clip_region_internal (GdkGC     *gc,
 413                                              GdkRegion *region,
 414                                              gboolean reset_origin);
 415 GdkSubwindowMode _gdk_gc_get_subwindow (GdkGC *gc);
 416
 417 /*****************************************
 418  * Interfaces provided by windowing code *
 419  *****************************************/
 420
 421 /* Font/string functions implemented in module-specific code */
 422 gint _gdk_font_strlen (GdkFont *font, const char *str);
 423 void _gdk_font_destroy (GdkFont *font);
 424
 425 void _gdk_colormap_real_destroy (GdkColormap *colormap);
 426
 427 void _gdk_cursor_destroy (GdkCursor *cursor);
 428
 429 void     _gdk_windowing_init                    (void);
 430
 431 extern const GOptionEntry _gdk_windowing_args[];
 432 void     _gdk_windowing_set_default_display     (GdkDisplay *display);
 433
 434 gchar *_gdk_windowing_substitute_screen_number (const gchar *display_name,
 435                                                 gint         screen_number);
 436
 437 gulong   _gdk_windowing_window_get_next_serial  (GdkDisplay *display);
 438 void     _gdk_windowing_window_get_offsets      (GdkWindow  *window,
 439                                                                                                  gint       *x_offset,
 440                                                                                                  gint       *y_offset);
 441 GdkRegion *_gdk_windowing_window_get_shape      (GdkWindow  *window);
 442 GdkRegion *_gdk_windowing_window_get_input_shape(GdkWindow  *window);
 443 GdkRegion *_gdk_windowing_get_shape_for_mask    (GdkBitmap *mask);
 444
 445
 446 void       _gdk_windowing_get_pointer        (GdkDisplay       *display,
 447                                               GdkScreen       **screen,
 448                                               gint             *x,
 449                                               gint             *y,
 450                                               GdkModifierType  *mask);
 451 GdkWindow* _gdk_windowing_window_at_pointer  (GdkDisplay       *display,
 452                                               gint             *win_x,
 453                                               gint             *win_y,
 454                                               GdkModifierType  *mask);
 455 void _gdk_windowing_got_event                (GdkDisplay       *display,
 456                                               GList            *event_link,
 457                                               GdkEvent         *event,
 458                                               gulong            serial);
 459
 460 void _gdk_windowing_window_process_updates_recurse (GdkWindow *window,
 461                                                     GdkRegion *expose_region);
 462 void _gdk_windowing_before_process_all_updates     (void);
 463 void _gdk_windowing_after_process_all_updates      (void);
 464
 465 /* Return the number of bits-per-pixel for images of the specified depth. */
 466 gint _gdk_windowing_get_bits_for_depth (GdkDisplay *display,
 467                                         gint        depth);
 468
 469
 470 #define GDK_WINDOW_IS_MAPPED(window) ((((GdkWindowObject*)window)->state & GDK_WINDOW_STATE_WITHDRAWN) == 0)
 471
 472
 473 /* Called when gdk_window_destroy() is called on a foreign window
 474  * or an ancestor of the foreign window. It should generally reparent
 475  * the window out of it's current heirarchy, hide it, and then
 476  * send a message to the owner requesting that the window be destroyed.
 477  */
 478 void _gdk_windowing_window_destroy_foreign (GdkWindow *window);
 479
 480 void _gdk_windowing_display_set_sm_client_id (GdkDisplay  *display,
 481                                               const gchar *sm_client_id);
 482
 483 void _gdk_windowing_window_set_composited (GdkWindow *window,
 484                                            gboolean composited);
 485
 486 #define GDK_TYPE_PAINTABLE            (_gdk_paintable_get_type ())
 487 #define GDK_PAINTABLE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_PAINTABLE, GdkPaintable))
 488 #define GDK_IS_PAINTABLE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_PAINTABLE))
 489 #define GDK_PAINTABLE_GET_IFACE(obj)  (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GDK_TYPE_PAINTABLE, GdkPaintableIface))
 490
 491 typedef struct _GdkPaintable        GdkPaintable;
 492 typedef struct _GdkPaintableIface   GdkPaintableIface;
 493
 494 struct _GdkPaintableIface
 495 {
 496   GTypeInterface g_iface;
 497
 498   void (* begin_paint_region)       (GdkPaintable    *paintable,
 499                                      GdkWindow       *window,
 500                                      const GdkRegion *region);
 501   void (* end_paint)                (GdkPaintable    *paintable);
 502 };
 503
 504 GType _gdk_paintable_get_type (void) G_GNUC_CONST;
 505
 506 /* Implementation types */
 507 GType _gdk_window_impl_get_type (void) G_GNUC_CONST;
 508 GType _gdk_pixmap_impl_get_type (void) G_GNUC_CONST;
 509
 510
 511 /**
 512  * _gdk_windowing_gc_set_clip_region:
 513  * @gc: a #GdkGC
 514  * @region: the new clip region
 515  * @reset_origin: if TRUE, reset the clip_x/y_origin values to 0
 516  *
 517  * Do any window-system specific processing necessary
 518  * for a change in clip region. Since the clip origin
 519  * will likely change before the GC is used with the
 520  * new clip, frequently this function will only set a flag and
 521  * do the real processing later.
 522  *
 523  * When this function is called, _gdk_gc_get_clip_region
 524  * will already return the new region.
 525  **/
 526 void _gdk_windowing_gc_set_clip_region (GdkGC           *gc,
 527                                         const GdkRegion *region,
 528                                         gboolean reset_origin);
 529
 530 /**
 531  * _gdk_windowing_gc_copy:
 532  * @dst_gc: a #GdkGC from the GDK backend
 533  * @src_gc: a #GdkGC from the GDK backend
 534  *
 535  * Copies backend specific state from @src_gc to @dst_gc.
 536  * This is called before the generic state is copied, so
 537  * the old generic state is still available from @dst_gc
 538  **/
 539 void _gdk_windowing_gc_copy (GdkGC *dst_gc,
 540                              GdkGC *src_gc);
 541
 542 /* Queries the current foreground color of a GdkGC */
 543 void _gdk_windowing_gc_get_foreground (GdkGC    *gc,
 544                                        GdkColor *color);
 545 /* Queries the current background color of a GdkGC */
 546 void _gdk_windowing_gc_get_background (GdkGC    *gc,
 547                                        GdkColor *color);
 548
 549 struct GdkAppLaunchContextPrivate
 550 {
 551   GdkDisplay *display;
 552   GdkScreen *screen;
 553   gint workspace;
 554   guint32 timestamp;
 555   GIcon *icon;
 556   char *icon_name;
 557 };
 558
 559 char *_gdk_windowing_get_startup_notify_id (GAppLaunchContext *context,
 560                                             GAppInfo          *info,
 561                                             GList             *files);
 562 void  _gdk_windowing_launch_failed         (GAppLaunchContext *context,
 563                                             const char        *startup_notify_id);
 564
 565 GdkPointerGrabInfo *_gdk_display_get_active_pointer_grab (GdkDisplay *display);
 566 void _gdk_display_pointer_grab_update                    (GdkDisplay *display,
 567                                                           gulong current_serial);
 568 GdkPointerGrabInfo *_gdk_display_get_last_pointer_grab (GdkDisplay *display);
 569 GdkPointerGrabInfo *_gdk_display_add_pointer_grab  (GdkDisplay *display,
 570                                                     GdkWindow *window,
 571                                                     GdkWindow *native_window,
 572                                                     gboolean owner_events,
 573                                                     GdkEventMask event_mask,
 574                                                     unsigned long serial_start,
 575                                                     guint32 time,
 576                                                     gboolean implicit);
 577 GdkPointerGrabInfo * _gdk_display_has_pointer_grab (GdkDisplay *display,
 578                                                     gulong serial);
 579 gboolean _gdk_display_end_pointer_grab (GdkDisplay *display,
 580                                         gulong serial,
 581                                         GdkWindow *if_child,
 582                                         gboolean implicit);
 583 void _gdk_display_set_has_keyboard_grab (GdkDisplay *display,
 584                                          GdkWindow *window,
 585                                          GdkWindow *native_window,
 586                                          gboolean owner_events,
 587                                          unsigned long serial,
 588                                          guint32 time);
 589 void _gdk_display_unset_has_keyboard_grab (GdkDisplay *display,
 590                                            gboolean implicit);
 591 void _gdk_display_enable_motion_hints     (GdkDisplay *display);
 592
 593
 594 void _gdk_window_invalidate_for_expose (GdkWindow       *window,
 595                                         const GdkRegion *region);
 596
 597 void _gdk_windowing_set_cairo_surface_size (cairo_surface_t *surface,
 598                                             int width,
 599                                             int height);
 600
 601 cairo_surface_t * _gdk_windowing_create_cairo_surface (GdkDrawable *drawable,
 602                                                        int width,
 603                                                        int height);
 604 GdkWindow * _gdk_window_find_child_at (GdkWindow *window,
 605                                        int x, int y);
 606 GdkWindow * _gdk_window_find_descendant_at (GdkWindow *toplevel,
 607                                             double x, double y,
 608                                             double *found_x,
 609                                             double *found_y);
 610
 611 void _gdk_window_add_damage (GdkWindow *toplevel,
 612                              GdkRegion *damaged_region);
 613
 614 GdkEvent * _gdk_make_event (GdkWindow    *window,
 615                             GdkEventType  type,
 616                             GdkEvent     *event_in_queue,
 617                             gboolean      before_event);
 618
 619 void _gdk_syntesize_crossing_events (GdkDisplay                 *display,
 620                                      GdkWindow                  *src,
 621                                      GdkWindow                  *dest,
 622                                      GdkCrossingMode             mode,
 623                                      gint                        toplevel_x,
 624                                      gint                        toplevel_y,
 625                                      GdkModifierType             mask,
 626                                      guint32                     time_,
 627                                      GdkEvent                   *event_in_queue,
 628                                      gulong                      serial);
 629 void _gdk_display_set_window_under_pointer (GdkDisplay *display,
 630                                             GdkWindow *window);
 631
 632
 633 void _gdk_syntesize_crossing_events_for_geometry_change (GdkWindow *changed_window);
 634
 635 GdkRegion *_gdk_window_calculate_full_clip_region    (GdkWindow     *window,
 636                                                       GdkWindow     *base_window,
 637                                                       gboolean       do_children,
 638                                                       gint          *base_x_offset,
 639                                                       gint          *base_y_offset);
 640 gboolean    _gdk_window_has_impl (GdkWindow *window);
 641 GdkWindow * _gdk_window_get_impl_window (GdkWindow *window);
 642 GdkWindow *_gdk_window_get_input_window_for_event (GdkWindow *native_window,
 643                                                    GdkEventType event_type,
 644                                                    int x, int y,
 645                                                    gulong serial);
 646 GdkRegion  *_gdk_region_new_from_yxbanded_rects (GdkRectangle *rects, int n_rects);
 647
 648 /*****************************
 649  * offscreen window routines *
 650  *****************************/
 651 GType gdk_offscreen_window_get_type (void);
 652 void       _gdk_offscreen_window_new                 (GdkWindow     *window,
 653                                                       GdkScreen     *screen,
 654                                                       GdkVisual     *visual,
 655                                                       GdkWindowAttr *attributes,
 656                                                       gint           attributes_mask);
 657
 658
 659 /************************************
 660  * Initialization and exit routines *
 661  ************************************/
 662
 663 void _gdk_image_exit  (void);
 664 void _gdk_windowing_exit (void);
 665
 666 G_END_DECLS
 667
 668 #endif /* __GDK_INTERNALS_H__ */