gtk/gdk/gdkinternals.h
2014-06-23 15:00:01 -04:00

421 lines
13 KiB
C

/* 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 1997-2000. 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/.
*/
/* Uninstalled header defining types and functions internal to GDK */
#ifndef __GDK_INTERNALS_H__
#define __GDK_INTERNALS_H__
#include <gio/gio.h>
#include "gdkwindowimpl.h"
#include "gdkdisplay.h"
#include "gdkprivate.h"
G_BEGIN_DECLS
/**********************
* General Facilities *
**********************/
/* Debugging support */
typedef struct _GdkColorInfo GdkColorInfo;
typedef struct _GdkEventFilter GdkEventFilter;
typedef struct _GdkClientFilter GdkClientFilter;
typedef enum {
GDK_COLOR_WRITEABLE = 1 << 0
} GdkColorInfoFlags;
struct _GdkColorInfo
{
GdkColorInfoFlags flags;
guint ref_count;
};
typedef enum {
GDK_EVENT_FILTER_REMOVED = 1 << 0
} GdkEventFilterFlags;
struct _GdkEventFilter {
GdkFilterFunc function;
gpointer data;
GdkEventFilterFlags flags;
guint ref_count;
};
struct _GdkClientFilter {
GdkAtom type;
GdkFilterFunc function;
gpointer data;
};
typedef enum {
GDK_DEBUG_MISC = 1 << 0,
GDK_DEBUG_EVENTS = 1 << 1,
GDK_DEBUG_DND = 1 << 2,
GDK_DEBUG_XIM = 1 << 3,
GDK_DEBUG_NOGRABS = 1 << 4,
GDK_DEBUG_INPUT = 1 << 5,
GDK_DEBUG_CURSOR = 1 << 6,
GDK_DEBUG_MULTIHEAD = 1 << 7,
GDK_DEBUG_XINERAMA = 1 << 8,
GDK_DEBUG_DRAW = 1 << 9,
GDK_DEBUG_EVENTLOOP = 1 << 10,
GDK_DEBUG_FRAMES = 1 << 11,
GDK_DEBUG_SETTINGS = 1 << 12
} GdkDebugFlag;
typedef enum {
GDK_RENDERING_MODE_SIMILAR = 0,
GDK_RENDERING_MODE_IMAGE,
GDK_RENDERING_MODE_RECORDING
} GdkRenderingMode;
extern GList *_gdk_default_filters;
extern GdkWindow *_gdk_parent_root;
extern guint _gdk_debug_flags;
extern GdkRenderingMode _gdk_rendering_mode;
#ifdef G_ENABLE_DEBUG
#define GDK_NOTE(type,action) G_STMT_START { \
if (_gdk_debug_flags & GDK_DEBUG_##type) \
{ action; }; } G_STMT_END
#else /* !G_ENABLE_DEBUG */
#define GDK_NOTE(type,action)
#endif /* G_ENABLE_DEBUG */
/* Arg parsing */
typedef enum
{
GDK_ARG_STRING,
GDK_ARG_INT,
GDK_ARG_BOOL,
GDK_ARG_NOBOOL,
GDK_ARG_CALLBACK
} GdkArgType;
typedef struct _GdkArgContext GdkArgContext;
typedef struct _GdkArgDesc GdkArgDesc;
typedef void (*GdkArgFunc) (const char *name, const char *arg, gpointer data);
struct _GdkArgContext
{
GPtrArray *tables;
gpointer cb_data;
};
struct _GdkArgDesc
{
const char *name;
GdkArgType type;
gpointer location;
GdkArgFunc callback;
};
/* Event handling */
typedef struct _GdkEventPrivate GdkEventPrivate;
typedef enum
{
/* Following flag is set for events on the event queue during
* translation and cleared afterwards.
*/
GDK_EVENT_PENDING = 1 << 0,
/* The following flag is set for:
* 1) touch events emulating pointer events
* 2) pointer events being emulated by a touch sequence.
*/
GDK_EVENT_POINTER_EMULATED = 1 << 1,
/* When we are ready to draw a frame, we pause event delivery,
* mark all events in the queue with this flag, and deliver
* only those events until we finish the frame.
*/
GDK_EVENT_FLUSHED = 1 << 2
} GdkEventFlags;
struct _GdkEventPrivate
{
GdkEvent event;
guint flags;
GdkScreen *screen;
gpointer windowing_data;
GdkDevice *device;
GdkDevice *source_device;
};
typedef struct _GdkWindowPaint GdkWindowPaint;
struct _GdkWindow
{
GObject parent_instance;
GdkWindowImpl *impl; /* window-system-specific delegate object */
GdkWindow *parent;
GdkVisual *visual;
gpointer user_data;
gint x;
gint y;
GdkEventMask event_mask;
guint8 window_type;
guint8 depth;
guint8 resize_count;
gint8 toplevel_window_type;
GList *filters;
GList *children;
GList *native_children;
cairo_pattern_t *background;
struct {
cairo_region_t *region;
cairo_surface_t *surface;
gboolean surface_needs_composite;
} current_paint;
cairo_region_t *update_area;
guint update_freeze_count;
GdkWindowState state;
guint8 alpha;
guint8 fullscreen_mode;
guint guffaw_gravity : 1;
guint input_only : 1;
guint modal_hint : 1;
guint composited : 1;
guint has_alpha_background : 1;
guint destroyed : 2;
guint accept_focus : 1;
guint focus_on_map : 1;
guint shaped : 1;
guint support_multidevice : 1;
guint synthesize_crossing_event_queued : 1;
guint effective_visibility : 2;
guint visibility : 2; /* The visibility wrt the toplevel (i.e. based on clip_region) */
guint native_visibility : 2; /* the native visibility of a impl windows */
guint viewable : 1; /* mapped and all parents mapped */
guint applied_shape : 1;
guint in_update : 1;
guint geometry_dirty : 1;
guint event_compression : 1;
/* The GdkWindow that has the impl, ref:ed if another window.
* This ref is required to keep the wrapper of the impl window alive
* for as long as any GdkWindow references the impl. */
GdkWindow *impl_window;
guint update_and_descendants_freeze_count;
gint abs_x, abs_y; /* Absolute offset in impl */
gint width, height;
guint num_offscreen_children;
/* The clip region is the part of the window, in window coordinates
that is fully or partially (i.e. semi transparently) visible in
the window hierarchy from the toplevel and down */
cairo_region_t *clip_region;
/* This is the clip region, with additionally all the opaque
child windows removed */
cairo_region_t *clip_region_with_children;
/* The layered region is the subset of clip_region that
is covered by non-opaque sibling or ancestor sibling window. */
cairo_region_t *layered_region;
GdkCursor *cursor;
GHashTable *device_cursor;
cairo_region_t *shape;
cairo_region_t *input_shape;
GList *devices_inside;
GHashTable *device_events;
GHashTable *source_event_masks;
gulong device_added_handler_id;
gulong device_changed_handler_id;
GdkFrameClock *frame_clock; /* NULL to use from parent or default */
GdkWindowInvalidateHandlerFunc invalidate_handler;
};
#define GDK_WINDOW_TYPE(d) ((((GdkWindow *)(d)))->window_type)
#define GDK_WINDOW_DESTROYED(d) (((GdkWindow *)(d))->destroyed)
extern gchar *_gdk_display_name;
extern gint _gdk_screen_number;
extern gchar *_gdk_display_arg_name;
extern gboolean _gdk_disable_multidevice;
GdkEvent* _gdk_event_unqueue (GdkDisplay *display);
void _gdk_event_filter_unref (GdkWindow *window,
GdkEventFilter *filter);
void _gdk_event_set_pointer_emulated (GdkEvent *event,
gboolean emulated);
gboolean _gdk_event_get_pointer_emulated (GdkEvent *event);
void _gdk_event_emit (GdkEvent *event);
GList* _gdk_event_queue_find_first (GdkDisplay *display);
void _gdk_event_queue_remove_link (GdkDisplay *display,
GList *node);
GList* _gdk_event_queue_prepend (GdkDisplay *display,
GdkEvent *event);
GList* _gdk_event_queue_append (GdkDisplay *display,
GdkEvent *event);
GList* _gdk_event_queue_insert_after (GdkDisplay *display,
GdkEvent *after_event,
GdkEvent *event);
GList* _gdk_event_queue_insert_before(GdkDisplay *display,
GdkEvent *after_event,
GdkEvent *event);
void _gdk_event_queue_handle_motion_compression (GdkDisplay *display);
void _gdk_event_queue_flush (GdkDisplay *display);
void _gdk_event_button_generate (GdkDisplay *display,
GdkEvent *event);
void _gdk_windowing_event_data_copy (const GdkEvent *src,
GdkEvent *dst);
void _gdk_windowing_event_data_free (GdkEvent *event);
void _gdk_set_window_state (GdkWindow *window,
GdkWindowState new_state);
gboolean _gdk_cairo_surface_extents (cairo_surface_t *surface,
GdkRectangle *extents);
/*************************************
* Interfaces used by windowing code *
*************************************/
cairo_surface_t *
_gdk_window_ref_cairo_surface (GdkWindow *window);
void _gdk_window_destroy (GdkWindow *window,
gboolean foreign_destroy);
void _gdk_window_clear_update_area (GdkWindow *window);
void _gdk_window_update_size (GdkWindow *window);
gboolean _gdk_window_update_viewable (GdkWindow *window);
void _gdk_window_process_updates_recurse (GdkWindow *window,
cairo_region_t *expose_region);
void _gdk_screen_close (GdkScreen *screen);
/*****************************************
* Interfaces provided by windowing code *
*****************************************/
/* Font/string functions implemented in module-specific code */
void _gdk_cursor_destroy (GdkCursor *cursor);
extern const GOptionEntry _gdk_windowing_args[];
void _gdk_windowing_got_event (GdkDisplay *display,
GList *event_link,
GdkEvent *event,
gulong serial);
#define GDK_WINDOW_IS_MAPPED(window) (((window)->state & GDK_WINDOW_STATE_WITHDRAWN) == 0)
void _gdk_window_invalidate_for_expose (GdkWindow *window,
cairo_region_t *region);
GdkWindow * _gdk_window_find_child_at (GdkWindow *window,
double x, double y);
GdkWindow * _gdk_window_find_descendant_at (GdkWindow *toplevel,
double x, double y,
double *found_x,
double *found_y);
GdkEvent * _gdk_make_event (GdkWindow *window,
GdkEventType type,
GdkEvent *event_in_queue,
gboolean before_event);
gboolean _gdk_window_event_parent_of (GdkWindow *parent,
GdkWindow *child);
void _gdk_synthesize_crossing_events (GdkDisplay *display,
GdkWindow *src,
GdkWindow *dest,
GdkDevice *device,
GdkDevice *source_device,
GdkCrossingMode mode,
gdouble toplevel_x,
gdouble toplevel_y,
GdkModifierType mask,
guint32 time_,
GdkEvent *event_in_queue,
gulong serial,
gboolean non_linear);
void _gdk_display_set_window_under_pointer (GdkDisplay *display,
GdkDevice *device,
GdkWindow *window);
void _gdk_synthesize_crossing_events_for_geometry_change (GdkWindow *changed_window);
gboolean _gdk_window_has_impl (GdkWindow *window);
GdkWindow * _gdk_window_get_impl_window (GdkWindow *window);
/*****************************
* offscreen window routines *
*****************************/
GType gdk_offscreen_window_get_type (void);
void _gdk_offscreen_window_new (GdkWindow *window,
GdkWindowAttr *attributes,
gint attributes_mask);
cairo_surface_t * _gdk_offscreen_window_create_surface (GdkWindow *window,
gint width,
gint height);
G_END_DECLS
#endif /* __GDK_INTERNALS_H__ */