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