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

   1 /* GDK - The GIMP Drawing Kit
   2  * Copyright (C) 2010 Red Hat, Inc.
   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 #ifndef __GDK_DISPLAY_PRIVATE_H__
  21 #define __GDK_DISPLAY_PRIVATE_H__
  22
  23 #include "gdkdisplay.h"
  24 #include "gdkwindow.h"
  25 #include "gdkcursor.h"
  26
  27 G_BEGIN_DECLS
  28
  29 #define GDK_DISPLAY_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_DISPLAY, GdkDisplayClass))
  30 #define GDK_IS_DISPLAY_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_DISPLAY))
  31 #define GDK_DISPLAY_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_DISPLAY, GdkDisplayClass))
  32
  33
  34 typedef struct _GdkDisplayDeviceHooks GdkDisplayDeviceHooks;
  35
  36 struct _GdkDisplayDeviceHooks
  37 {
  38   GdkWindow * (* window_at_device_position)  (GdkDisplay *display,
  39                                               GdkDevice  *device,
  40                                               gint       *win_x,
  41                                               gint       *win_y);
  42 };
  43
  44 typedef struct _GdkDisplayClass GdkDisplayClass;
  45
  46 /* Tracks information about the keyboard grab on this display */
  47 typedef struct
  48 {
  49   GdkWindow *window;
  50   GdkWindow *native_window;
  51   gulong serial;
  52   gboolean owner_events;
  53   guint32 time;
  54 } GdkKeyboardGrabInfo;
  55
  56 /* Tracks information about the pointer grab on this display */
  57 typedef struct
  58 {
  59   GdkWindow *window;
  60   GdkWindow *native_window;
  61   gulong serial_start;
  62   gulong serial_end; /* exclusive, i.e. not active on serial_end */
  63   gboolean owner_events;
  64   guint event_mask;
  65   gboolean implicit;
  66   guint32 time;
  67   GdkGrabOwnership ownership;
  68
  69   guint activated : 1;
  70   guint implicit_ungrab : 1;
  71 } GdkDeviceGrabInfo;
  72
  73 /* Tracks information about which window and position the pointer last was in.
  74  * This is useful when we need to synthesize events later.
  75  * Note that we track toplevel_under_pointer using enter/leave events,
  76  * so in the case of a grab, either with owner_events==FALSE or with the
  77  * pointer in no clients window the x/y coordinates may actually be outside
  78  * the window.
  79  */
  80 typedef struct
  81 {
  82   GdkWindow *toplevel_under_pointer; /* toplevel window containing the pointer, */
  83                                      /* tracked via native events */
  84   GdkWindow *window_under_pointer;   /* window that last got a normal enter event */
  85   gdouble toplevel_x, toplevel_y;
  86   guint32 state;
  87   guint32 button;
  88 } GdkPointerWindowInfo;
  89
  90 typedef struct
  91 {
  92   guint32 button_click_time[2]; /* last 2 button click times */
  93   GdkWindow *button_window[2];  /* last 2 windows to receive button presses */
  94   gint button_number[2];        /* last 2 buttons to be pressed */
  95   gint button_x[2];             /* last 2 button click positions */
  96   gint button_y[2];
  97 } GdkMultipleClickInfo;
  98
  99 struct _GdkDisplay
 100 {
 101   GObject parent_instance;
 102
 103   GList *queued_events;
 104   GList *queued_tail;
 105
 106   /* Information for determining if the latest button click
 107    * is part of a double-click or triple-click
 108    */
 109   GHashTable *multiple_click_info;
 110   guint double_click_time;  /* Maximum time between clicks in msecs */
 111   GdkDevice *core_pointer;  /* Core pointer device */
 112
 113   const GdkDisplayDeviceHooks *device_hooks; /* Hooks for querying pointer */
 114
 115   guint closed             : 1;  /* Whether this display has been closed */
 116   guint ignore_core_events : 1;  /* Don't send core motion and button event */
 117
 118   guint double_click_distance;   /* Maximum distance between clicks in pixels */
 119
 120   GHashTable *device_grabs;
 121   GHashTable *motion_hint_info;
 122
 123   GHashTable *pointers_info;  /* GdkPointerWindowInfo for each device */
 124   guint32 last_event_time;    /* Last reported event time from server */
 125
 126   GdkDeviceManager *device_manager;
 127 };
 128
 129 struct _GdkDisplayClass
 130 {
 131   GObjectClass parent_class;
 132
 133   GType window_type;          /* type for native windows for this display, set in class_init */
 134
 135   G_CONST_RETURN gchar *     (*get_name)           (GdkDisplay *display);
 136   gint                       (*get_n_screens)      (GdkDisplay *display);
 137   GdkScreen *                (*get_screen)         (GdkDisplay *display,
 138                                                     gint        screen_num);
 139   GdkScreen *                (*get_default_screen) (GdkDisplay *display);
 140   void                       (*beep)               (GdkDisplay *display);
 141   void                       (*sync)               (GdkDisplay *display);
 142   void                       (*flush)              (GdkDisplay *display);
 143   gboolean                   (*has_pending)        (GdkDisplay *display);
 144   void                       (*queue_events)       (GdkDisplay *display);
 145   GdkWindow *                (*get_default_group)  (GdkDisplay *display);
 146   gboolean                   (*supports_selection_notification) (GdkDisplay *display);
 147   gboolean                   (*request_selection_notification)  (GdkDisplay *display,
 148                                                                  GdkAtom     selection);
 149   gboolean                   (*supports_shapes)       (GdkDisplay *display);
 150   gboolean                   (*supports_input_shapes) (GdkDisplay *display);
 151   gboolean                   (*supports_composite)    (GdkDisplay *display);
 152   gboolean                   (*supports_cursor_alpha) (GdkDisplay *display);
 153   gboolean                   (*supports_cursor_color) (GdkDisplay *display);
 154
 155   gboolean                   (*supports_clipboard_persistence)  (GdkDisplay *display);
 156   void                       (*store_clipboard)    (GdkDisplay    *display,
 157                                                     GdkWindow     *clipboard_window,
 158                                                     guint32        time_,
 159                                                     const GdkAtom *targets,
 160                                                     gint           n_targets);
 161
 162   void                       (*get_default_cursor_size) (GdkDisplay *display,
 163                                                          guint      *width,
 164                                                          guint      *height);
 165   void                       (*get_maximal_cursor_size) (GdkDisplay *display,
 166                                                          guint      *width,
 167                                                          guint      *height);
 168   GdkCursor *                (*get_cursor_for_type)     (GdkDisplay    *display,
 169                                                          GdkCursorType  type);
 170   GdkCursor *                (*get_cursor_for_name)     (GdkDisplay    *display,
 171                                                          const gchar   *name);
 172   GdkCursor *                (*get_cursor_for_pixbuf)   (GdkDisplay    *display,
 173                                                          GdkPixbuf     *pixbuf,
 174                                                          gint           x,
 175                                                          gint           y);
 176
 177   GList *                    (*list_devices)       (GdkDisplay *display);
 178   gboolean                   (*send_client_message) (GdkDisplay     *display,
 179                                                      GdkEvent       *event,
 180                                                      GdkNativeWindow winid);
 181   void                       (*add_client_message_filter) (GdkDisplay   *display,
 182                                                            GdkAtom       message_type,
 183                                                            GdkFilterFunc func,
 184                                                            gpointer      data);
 185   GdkAppLaunchContext *      (*get_app_launch_context) (GdkDisplay *display);
 186   GdkNativeWindow            (*get_drag_protocol)      (GdkDisplay      *display,
 187                                                         GdkNativeWindow  winid,
 188                                                         GdkDragProtocol *protocol,
 189                                                         guint           *version);
 190
 191   void                       (*before_process_all_updates) (GdkDisplay *display);
 192   void                       (*after_process_all_updates)  (GdkDisplay *display);
 193
 194   gulong                     (*get_next_serial) (GdkDisplay *display);
 195
 196   void                       (*notify_startup_complete) (GdkDisplay  *display,
 197                                                          const gchar *startup_id);
 198   void                       (*event_data_copy) (GdkDisplay     *display,
 199                                                  const GdkEvent *event,
 200                                                  GdkEvent       *new_event);
 201   void                       (*event_data_free) (GdkDisplay     *display,
 202                                                  GdkEvent       *event);
 203   void                       (*create_window_impl) (GdkDisplay    *display,
 204                                                     GdkWindow     *window,
 205                                                     GdkWindow     *real_parent,
 206                                                     GdkScreen     *screen,
 207                                                     GdkEventMask   event_mask,
 208                                                     GdkWindowAttr *attributes,
 209                                                     gint           attributes_mask);
 210
 211   GdkKeymap *                (*get_keymap)         (GdkDisplay    *display);
 212   void                       (*push_error_trap)    (GdkDisplay    *display);
 213   gint                       (*pop_error_trap)     (GdkDisplay    *display,
 214                                                     gboolean       ignore);
 215
 216   GdkWindow *                (*get_selection_owner) (GdkDisplay   *display,
 217                                                      GdkAtom       selection);
 218   gboolean                   (*set_selection_owner) (GdkDisplay   *display,
 219                                                      GdkWindow    *owner,
 220                                                      GdkAtom       selection,
 221                                                      guint32       time,
 222                                                      gboolean      send_event);
 223   void                       (*send_selection_notify) (GdkDisplay *dispay,
 224                                                        GdkNativeWindow  requestor,
 225                                                        GdkAtom          selection,
 226                                                        GdkAtom          target,
 227                                                        GdkAtom          property,
 228                                                        guint32          time);
 229   gint                       (*get_selection_property) (GdkDisplay  *display,
 230                                                         GdkWindow   *requestor,
 231                                                         guchar     **data,
 232                                                         GdkAtom     *type,
 233                                                         gint        *format);
 234   void                       (*convert_selection)      (GdkDisplay  *display,
 235                                                         GdkWindow   *requestor,
 236                                                         GdkAtom      selection,
 237                                                         GdkAtom      target,
 238                                                         guint32      time);
 239
 240   gint                   (*text_property_to_utf8_list) (GdkDisplay     *display,
 241                                                         GdkAtom         encoding,
 242                                                         gint            format,
 243                                                         const guchar   *text,
 244                                                         gint            length,
 245                                                         gchar        ***list);
 246   gchar *                (*utf8_to_string_target)      (GdkDisplay     *display,
 247                                                         const gchar    *text);
 248
 249   /* Signals */
 250   void (*closed) (GdkDisplay *display,
 251                   gboolean    is_error);
 252 };
 253
 254
 255 typedef void (* GdkDisplayPointerInfoForeach) (GdkDisplay           *display,
 256                                                GdkDevice            *device,
 257                                                GdkPointerWindowInfo *device_info,
 258                                                gpointer              user_data);
 259
 260 void                _gdk_display_device_grab_update   (GdkDisplay *display,
 261                                                        GdkDevice  *device,
 262                                                        GdkDevice  *source_device,
 263                                                        gulong      current_serial);
 264 GdkDeviceGrabInfo * _gdk_display_get_last_device_grab (GdkDisplay *display,
 265                                                        GdkDevice  *device);
 266 GdkDeviceGrabInfo * _gdk_display_add_device_grab      (GdkDisplay       *display,
 267                                                        GdkDevice        *device,
 268                                                        GdkWindow        *window,
 269                                                        GdkWindow        *native_window,
 270                                                        GdkGrabOwnership  grab_ownership,
 271                                                        gboolean          owner_events,
 272                                                        GdkEventMask      event_mask,
 273                                                        gulong            serial_start,
 274                                                        guint32           time,
 275                                                        gboolean          implicit);
 276 GdkDeviceGrabInfo * _gdk_display_has_device_grab      (GdkDisplay       *display,
 277                                                        GdkDevice        *device,
 278                                                        gulong            serial);
 279 gboolean            _gdk_display_end_device_grab      (GdkDisplay       *display,
 280                                                        GdkDevice        *device,
 281                                                        gulong            serial,
 282                                                        GdkWindow        *if_child,
 283                                                        gboolean          implicit);
 284 gboolean            _gdk_display_check_grab_ownership (GdkDisplay       *display,
 285                                                        GdkDevice        *device,
 286                                                        gulong            serial);
 287 void                _gdk_display_enable_motion_hints  (GdkDisplay       *display,
 288                                                        GdkDevice        *device);
 289 GdkPointerWindowInfo * _gdk_display_get_pointer_info  (GdkDisplay       *display,
 290                                                        GdkDevice        *device);
 291 void                _gdk_display_pointer_info_foreach (GdkDisplay       *display,
 292                                                        GdkDisplayPointerInfoForeach func,
 293                                                        gpointer          user_data);
 294 gulong              _gdk_display_get_next_serial      (GdkDisplay       *display);
 295 void                _gdk_display_event_data_copy      (GdkDisplay       *display,
 296                                                        const GdkEvent   *event,
 297                                                        GdkEvent         *new_event);
 298 void                _gdk_display_event_data_free      (GdkDisplay       *display,
 299                                                        GdkEvent         *event);
 300 void                _gdk_display_create_window_impl   (GdkDisplay       *display,
 301                                                        GdkWindow        *window,
 302                                                        GdkWindow        *real_parent,
 303                                                        GdkScreen        *screen,
 304                                                        GdkEventMask      event_mask,
 305                                                        GdkWindowAttr    *attributes,
 306                                                        gint              attributes_mask);
 307 GdkWindow *         _gdk_display_create_window        (GdkDisplay       *display);
 308
 309 G_END_DECLS
 310
 311 #endif  /* __GDK_DISPLAY_PRIVATE_H__ */