text: /* GDK - The GIMP Drawing Kit
   * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, see <http://www.gnu.org/licenses/>.
   */
  
  /*
   * Modified by the GTK+ Team and others 1997-2010.  See the AUTHORS
   * file for a list of people on the GTK+ Team.  See the ChangeLog
   * files for a list of changes.  These files are distributed with
   * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
   */
  
  #ifndef __GDK_FRAME_CLOCK_H__
  #define __GDK_FRAME_CLOCK_H__
  
  #if !defined (__GDK_H_INSIDE__) && !defined (GDK_COMPILATION)
  #error "Only <gdk/gdk.h> can be included directly."
  #endif
  
  #include <gdk/gdkframetimings.h>
  
  G_BEGIN_DECLS
  
  #define GDK_TYPE_FRAME_CLOCK            (gdk_frame_clock_get_type ())
  #define GDK_FRAME_CLOCK(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_FRAME_CLOCK, GdkFrameClock))
  #define GDK_FRAME_CLOCK_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_FRAME_CLOCK, GdkFrameClockClass))
  #define GDK_IS_FRAME_CLOCK(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_FRAME_CLOCK))
  #define GDK_IS_FRAME_CLOCK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_FRAME_CLOCK))
  #define GDK_FRAME_CLOCK_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_FRAME_CLOCK, GdkFrameClockClass))
  
  typedef struct _GdkFrameClock              GdkFrameClock;
  typedef struct _GdkFrameClockPrivate       GdkFrameClockPrivate;
  typedef struct _GdkFrameClockClass         GdkFrameClockClass;
  
  /**
   * GdkFrameClockPhase:
   * @GDK_FRAME_CLOCK_PHASE_NONE: no phase
   * @GDK_FRAME_CLOCK_PHASE_FLUSH_EVENTS: corresponds to GdkFrameClock::flush-events. Should not be handled by applications.
   * @GDK_FRAME_CLOCK_PHASE_BEFORE_PAINT: corresponds to GdkFrameClock::before-paint. Should not be handled by applications.
   * @GDK_FRAME_CLOCK_PHASE_UPDATE: corresponds to GdkFrameClock::update.
   * @GDK_FRAME_CLOCK_PHASE_LAYOUT: corresponds to GdkFrameClock::layout.
   * @GDK_FRAME_CLOCK_PHASE_PAINT: corresponds to GdkFrameClock::paint.
   * @GDK_FRAME_CLOCK_PHASE_RESUME_EVENTS: corresponds to GdkFrameClock::resume-events. Should not be handled by applications.
   * @GDK_FRAME_CLOCK_PHASE_AFTER_PAINT: corresponds to GdkFrameClock::after-paint. Should not be handled by applications.
   *
   * #GdkFrameClockPhase is used to represent the different paint clock
   * phases that can be requested. The elements of the enumeration
   * correspond to the signals of #GdkFrameClock.
   **/
  typedef enum {
    GDK_FRAME_CLOCK_PHASE_NONE          = 0,
    GDK_FRAME_CLOCK_PHASE_FLUSH_EVENTS  = 1 << 0,
    GDK_FRAME_CLOCK_PHASE_BEFORE_PAINT  = 1 << 1,
    GDK_FRAME_CLOCK_PHASE_UPDATE        = 1 << 2,
    GDK_FRAME_CLOCK_PHASE_LAYOUT        = 1 << 3,
    GDK_FRAME_CLOCK_PHASE_PAINT         = 1 << 4,
    GDK_FRAME_CLOCK_PHASE_RESUME_EVENTS = 1 << 5,
    GDK_FRAME_CLOCK_PHASE_AFTER_PAINT   = 1 << 6
  } GdkFrameClockPhase;
  
  GDK_AVAILABLE_IN_ALL
  GType    gdk_frame_clock_get_type             (void) G_GNUC_CONST;
  
  GDK_AVAILABLE_IN_ALL
  gint64   gdk_frame_clock_get_frame_time            (GdkFrameClock *frame_clock);
  
  GDK_AVAILABLE_IN_ALL
  void               gdk_frame_clock_request_phase (GdkFrameClock      *frame_clock,
                                                    GdkFrameClockPhase  phase);
  
  GDK_AVAILABLE_IN_ALL
  void               gdk_frame_clock_begin_updating (GdkFrameClock      *frame_clock);
  GDK_AVAILABLE_IN_ALL
  void               gdk_frame_clock_end_updating   (GdkFrameClock      *frame_clock);
  
  /* Frame history */
  GDK_AVAILABLE_IN_ALL
  gint64           gdk_frame_clock_get_frame_counter (GdkFrameClock *frame_clock);
  GDK_AVAILABLE_IN_ALL
  gint64           gdk_frame_clock_get_history_start (GdkFrameClock *frame_clock);
  GDK_AVAILABLE_IN_ALL
  GdkFrameTimings *gdk_frame_clock_get_timings       (GdkFrameClock *frame_clock,
                                                      gint64         frame_counter);
  
  GDK_AVAILABLE_IN_ALL
  GdkFrameTimings *gdk_frame_clock_get_current_timings (GdkFrameClock *frame_clock);
  
  GDK_AVAILABLE_IN_ALL
  void gdk_frame_clock_get_refresh_info (GdkFrameClock *frame_clock,
                                         gint64         base_time,
                                         gint64        *refresh_interval_return,
                                         gint64        *presentation_time_return);
  
  G_END_DECLS
  
  #endif /* __GDK_FRAME_CLOCK_H__ */
  