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gtk2/gdk/gdkinternals.h
Benjamin Otte 9f1cb0798b API: Add gdk_window_get_background_pattern() 
This is the suggested way for GTK3 to store a Window's background so it
makes sense to use the same function today already.
2010-08-16 20:01:49 +02:00

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/* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* 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 <gdk/gdktypes.h>
#include <gdk/gdkwindow.h>
#include <gdk/gdkprivate.h>
#ifdef USE_MEDIALIB
#include <gdk/gdkmedialib.h>
#endif
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;
};
struct _GdkEventFilter {
GdkFilterFunc function;
gpointer data;
};
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_COLORMAP = 1 << 5,
GDK_DEBUG_GDKRGB = 1 << 6,
GDK_DEBUG_GC = 1 << 7,
GDK_DEBUG_PIXMAP = 1 << 8,
GDK_DEBUG_IMAGE = 1 << 9,
GDK_DEBUG_INPUT = 1 <<10,
GDK_DEBUG_CURSOR = 1 <<11,
GDK_DEBUG_MULTIHEAD = 1 <<12,
GDK_DEBUG_XINERAMA = 1 <<13,
GDK_DEBUG_DRAW = 1 <<14,
GDK_DEBUG_EVENTLOOP = 1 <<15
} GdkDebugFlag;
#ifndef GDK_DISABLE_DEPRECATED
typedef struct _GdkFontPrivate GdkFontPrivate;
struct _GdkFontPrivate
{
GdkFont font;
guint ref_count;
};
#endif /* GDK_DISABLE_DEPRECATED */
extern GList *_gdk_default_filters;
extern GdkWindow *_gdk_parent_root;
extern gint _gdk_error_code;
extern gint _gdk_error_warnings;
extern guint _gdk_debug_flags;
extern gboolean _gdk_native_windows;
#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
} GdkEventFlags;
struct _GdkEventPrivate
{
GdkEvent event;
guint flags;
GdkScreen *screen;
gpointer windowing_data;
};
/* Tracks information about the pointer grab on this display */
typedef struct
{
GdkWindow *window;
GdkWindow *native_window;
gulong serial_start;
gulong serial_end; /* exclusive, i.e. not active on serial_end */
gboolean owner_events;
guint event_mask;
gboolean implicit;
guint32 time;
gboolean activated;
gboolean implicit_ungrab;
} GdkPointerGrabInfo;
typedef struct _GdkInputWindow GdkInputWindow;
/* Private version of GdkWindowObject. The initial part of this strucuture
is public for historical reasons. Don't change that part */
typedef struct _GdkWindowPaint GdkWindowPaint;
struct _GdkWindowObject
{
/* vvvvvvv THIS PART IS PUBLIC. DON'T CHANGE vvvvvvvvvvvvvv */
GdkDrawable parent_instance;
GdkDrawable *impl; /* window-system-specific delegate object */
GdkWindowObject *parent;
gpointer user_data;
gint x;
gint y;
gint extension_events;
GList *filters;
GList *children;
GdkColor bg_color;
GdkPixmap *bg_pixmap;
GSList *paint_stack;
GdkRegion *update_area;
guint update_freeze_count;
guint8 window_type;
guint8 depth;
guint8 resize_count;
GdkWindowState state;
guint guffaw_gravity : 1;
guint input_only : 1;
guint modal_hint : 1;
guint composited : 1;
guint destroyed : 2;
guint accept_focus : 1;
guint focus_on_map : 1;
guint shaped : 1;
GdkEventMask event_mask;
guint update_and_descendants_freeze_count;
GdkWindowRedirect *redirect;
/* ^^^^^^^^^^ THIS PART IS PUBLIC. DON'T CHANGE ^^^^^^^^^^ */
/* The GdkWindowObject 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. */
GdkWindowObject *impl_window;
int abs_x, abs_y; /* Absolute offset in impl */
gint width, height;
guint32 clip_tag;
GdkRegion *clip_region; /* Clip region (wrt toplevel) in window coords */
GdkRegion *clip_region_with_children; /* Clip region in window coords */
GdkCursor *cursor;
gint8 toplevel_window_type;
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 num_offscreen_children;
GdkWindowPaint *implicit_paint;
GdkInputWindow *input_window; /* only set for impl windows */
GList *outstanding_moves;
GdkRegion *shape;
GdkRegion *input_shape;
cairo_surface_t *cairo_surface;
guint outstanding_surfaces; /* only set on impl window */
cairo_pattern_t *background;
};
#define GDK_WINDOW_TYPE(d) (((GdkWindowObject*)(GDK_WINDOW (d)))->window_type)
#define GDK_WINDOW_DESTROYED(d) (((GdkWindowObject*)(GDK_WINDOW (d)))->destroyed)
extern GdkEventFunc _gdk_event_func; /* Callback for events */
extern gpointer _gdk_event_data;
extern GDestroyNotify _gdk_event_notify;
extern GSList *_gdk_displays;
extern gchar *_gdk_display_name;
extern gint _gdk_screen_number;
extern gchar *_gdk_display_arg_name;
void _gdk_events_queue (GdkDisplay *display);
GdkEvent* _gdk_event_unqueue (GdkDisplay *display);
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_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_synthesize_window_state (GdkWindow *window,
GdkWindowState unset_flags,
GdkWindowState set_flags);
#define GDK_SCRATCH_IMAGE_WIDTH 256
#define GDK_SCRATCH_IMAGE_HEIGHT 64
GdkImage* _gdk_image_new_for_depth (GdkScreen *screen,
GdkImageType type,
GdkVisual *visual,
gint width,
gint height,
gint depth);
GdkImage *_gdk_image_get_scratch (GdkScreen *screen,
gint width,
gint height,
gint depth,
gint *x,
gint *y);
GdkImage *_gdk_drawable_copy_to_image (GdkDrawable *drawable,
GdkImage *image,
gint src_x,
gint src_y,
gint dest_x,
gint dest_y,
gint width,
gint height);
cairo_surface_t *_gdk_drawable_ref_cairo_surface (GdkDrawable *drawable);
GdkDrawable *_gdk_drawable_get_source_drawable (GdkDrawable *drawable);
cairo_surface_t * _gdk_drawable_create_cairo_surface (GdkDrawable *drawable,
int width,
int height);
/* GC caching */
GdkGC *_gdk_drawable_get_scratch_gc (GdkDrawable *drawable,
gboolean graphics_exposures);
GdkGC *_gdk_drawable_get_subwindow_scratch_gc (GdkDrawable *drawable);
void _gdk_gc_update_context (GdkGC *gc,
cairo_t *cr,
const GdkColor *override_foreground,
GdkBitmap *override_stipple,
gboolean gc_changed,
GdkDrawable *target_drawable);
/*************************************
* Interfaces used by windowing code *
*************************************/
GdkPixmap *_gdk_pixmap_new (GdkDrawable *drawable,
gint width,
gint height,
gint depth);
GdkPixmap *_gdk_pixmap_create_from_data (GdkDrawable *drawable,
const gchar *data,
gint width,
gint height,
gint depth,
const GdkColor *fg,
const GdkColor *bg);
GdkPixmap *_gdk_bitmap_create_from_data (GdkDrawable *drawable,
const gchar *data,
gint width,
gint height);
void _gdk_window_impl_new (GdkWindow *window,
GdkWindow *real_parent,
GdkScreen *screen,
GdkVisual *visual,
GdkEventMask event_mask,
GdkWindowAttr *attributes,
gint attributes_mask);
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,
GdkRegion *expose_region);
void _gdk_screen_close (GdkScreen *screen);
const char *_gdk_get_sm_client_id (void);
void _gdk_gc_init (GdkGC *gc,
GdkDrawable *drawable,
GdkGCValues *values,
GdkGCValuesMask values_mask);
GdkRegion *_gdk_gc_get_clip_region (GdkGC *gc);
GdkBitmap *_gdk_gc_get_clip_mask (GdkGC *gc);
gboolean _gdk_gc_get_exposures (GdkGC *gc);
GdkFill _gdk_gc_get_fill (GdkGC *gc);
GdkPixmap *_gdk_gc_get_tile (GdkGC *gc);
GdkBitmap *_gdk_gc_get_stipple (GdkGC *gc);
guint32 _gdk_gc_get_fg_pixel (GdkGC *gc);
guint32 _gdk_gc_get_bg_pixel (GdkGC *gc);
void _gdk_gc_add_drawable_clip (GdkGC *gc,
guint32 region_tag,
GdkRegion *region,
int offset_x,
int offset_y);
void _gdk_gc_remove_drawable_clip (GdkGC *gc);
void _gdk_gc_set_clip_region_internal (GdkGC *gc,
GdkRegion *region,
gboolean reset_origin);
GdkSubwindowMode _gdk_gc_get_subwindow (GdkGC *gc);
/*****************************************
* Interfaces provided by windowing code *
*****************************************/
/* Font/string functions implemented in module-specific code */
gint _gdk_font_strlen (GdkFont *font, const char *str);
void _gdk_font_destroy (GdkFont *font);
void _gdk_colormap_real_destroy (GdkColormap *colormap);
void _gdk_cursor_destroy (GdkCursor *cursor);
void _gdk_windowing_init (void);
extern const GOptionEntry _gdk_windowing_args[];
void _gdk_windowing_set_default_display (GdkDisplay *display);
gchar *_gdk_windowing_substitute_screen_number (const gchar *display_name,
gint screen_number);
gulong _gdk_windowing_window_get_next_serial (GdkDisplay *display);
void _gdk_windowing_window_get_offsets (GdkWindow *window,
gint *x_offset,
gint *y_offset);
GdkRegion *_gdk_windowing_window_get_shape (GdkWindow *window);
GdkRegion *_gdk_windowing_window_get_input_shape(GdkWindow *window);
GdkRegion *_gdk_windowing_get_shape_for_mask (GdkBitmap *mask);
void _gdk_windowing_window_beep (GdkWindow *window);
void _gdk_windowing_get_pointer (GdkDisplay *display,
GdkScreen **screen,
gint *x,
gint *y,
GdkModifierType *mask);
GdkWindow* _gdk_windowing_window_at_pointer (GdkDisplay *display,
gint *win_x,
gint *win_y,
GdkModifierType *mask,
gboolean get_toplevel);
GdkGrabStatus _gdk_windowing_pointer_grab (GdkWindow *window,
GdkWindow *native,
gboolean owner_events,
GdkEventMask event_mask,
GdkWindow *confine_to,
GdkCursor *cursor,
guint32 time);
void _gdk_windowing_got_event (GdkDisplay *display,
GList *event_link,
GdkEvent *event,
gulong serial);
void _gdk_windowing_window_process_updates_recurse (GdkWindow *window,
GdkRegion *expose_region);
void _gdk_windowing_before_process_all_updates (void);
void _gdk_windowing_after_process_all_updates (void);
/* Return the number of bits-per-pixel for images of the specified depth. */
gint _gdk_windowing_get_bits_for_depth (GdkDisplay *display,
gint depth);
#define GDK_WINDOW_IS_MAPPED(window) ((((GdkWindowObject*)window)->state & GDK_WINDOW_STATE_WITHDRAWN) == 0)
/* Called when gdk_window_destroy() is called on a foreign window
* or an ancestor of the foreign window. It should generally reparent
* the window out of it's current heirarchy, hide it, and then
* send a message to the owner requesting that the window be destroyed.
*/
void _gdk_windowing_window_destroy_foreign (GdkWindow *window);
void _gdk_windowing_display_set_sm_client_id (GdkDisplay *display,
const gchar *sm_client_id);
void _gdk_windowing_window_set_composited (GdkWindow *window,
gboolean composited);
#define GDK_TYPE_PAINTABLE (_gdk_paintable_get_type ())
#define GDK_PAINTABLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_PAINTABLE, GdkPaintable))
#define GDK_IS_PAINTABLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_PAINTABLE))
#define GDK_PAINTABLE_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GDK_TYPE_PAINTABLE, GdkPaintableIface))
typedef struct _GdkPaintable GdkPaintable;
typedef struct _GdkPaintableIface GdkPaintableIface;
struct _GdkPaintableIface
{
GTypeInterface g_iface;
void (* begin_paint_region) (GdkPaintable *paintable,
GdkWindow *window,
const GdkRegion *region);
void (* end_paint) (GdkPaintable *paintable);
};
GType _gdk_paintable_get_type (void) G_GNUC_CONST;
/* Implementation types */
GType _gdk_window_impl_get_type (void) G_GNUC_CONST;
GType _gdk_pixmap_impl_get_type (void) G_GNUC_CONST;
/**
* _gdk_windowing_gc_set_clip_region:
* @gc: a #GdkGC
* @region: the new clip region
* @reset_origin: if TRUE, reset the clip_x/y_origin values to 0
*
* Do any window-system specific processing necessary
* for a change in clip region. Since the clip origin
* will likely change before the GC is used with the
* new clip, frequently this function will only set a flag and
* do the real processing later.
*
* When this function is called, _gdk_gc_get_clip_region
* will already return the new region.
**/
void _gdk_windowing_gc_set_clip_region (GdkGC *gc,
const GdkRegion *region,
gboolean reset_origin);
/**
* _gdk_windowing_gc_copy:
* @dst_gc: a #GdkGC from the GDK backend
* @src_gc: a #GdkGC from the GDK backend
*
* Copies backend specific state from @src_gc to @dst_gc.
* This is called before the generic state is copied, so
* the old generic state is still available from @dst_gc
**/
void _gdk_windowing_gc_copy (GdkGC *dst_gc,
GdkGC *src_gc);
/* Queries the current foreground color of a GdkGC */
void _gdk_windowing_gc_get_foreground (GdkGC *gc,
GdkColor *color);
/* Queries the current background color of a GdkGC */
void _gdk_windowing_gc_get_background (GdkGC *gc,
GdkColor *color);
struct GdkAppLaunchContextPrivate
{
GdkDisplay *display;
GdkScreen *screen;
gint workspace;
guint32 timestamp;
GIcon *icon;
char *icon_name;
};
char *_gdk_windowing_get_startup_notify_id (GAppLaunchContext *context,
GAppInfo *info,
GList *files);
void _gdk_windowing_launch_failed (GAppLaunchContext *context,
const char *startup_notify_id);
GdkPointerGrabInfo *_gdk_display_get_active_pointer_grab (GdkDisplay *display);
void _gdk_display_pointer_grab_update (GdkDisplay *display,
gulong current_serial);
GdkPointerGrabInfo *_gdk_display_get_last_pointer_grab (GdkDisplay *display);
GdkPointerGrabInfo *_gdk_display_add_pointer_grab (GdkDisplay *display,
GdkWindow *window,
GdkWindow *native_window,
gboolean owner_events,
GdkEventMask event_mask,
unsigned long serial_start,
guint32 time,
gboolean implicit);
GdkPointerGrabInfo * _gdk_display_has_pointer_grab (GdkDisplay *display,
gulong serial);
gboolean _gdk_display_end_pointer_grab (GdkDisplay *display,
gulong serial,
GdkWindow *if_child,
gboolean implicit);
void _gdk_display_set_has_keyboard_grab (GdkDisplay *display,
GdkWindow *window,
GdkWindow *native_window,
gboolean owner_events,
unsigned long serial,
guint32 time);
void _gdk_display_unset_has_keyboard_grab (GdkDisplay *display,
gboolean implicit);
void _gdk_display_enable_motion_hints (GdkDisplay *display);
void _gdk_window_invalidate_for_expose (GdkWindow *window,
GdkRegion *region);
void _gdk_windowing_set_cairo_surface_size (cairo_surface_t *surface,
int width,
int height);
cairo_surface_t * _gdk_windowing_create_cairo_surface (GdkDrawable *drawable,
int width,
int height);
GdkWindow * _gdk_window_find_child_at (GdkWindow *window,
int x, int y);
GdkWindow * _gdk_window_find_descendant_at (GdkWindow *toplevel,
double x, double y,
double *found_x,
double *found_y);
void _gdk_window_add_damage (GdkWindow *toplevel,
GdkRegion *damaged_region);
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,
GdkCrossingMode mode,
gint toplevel_x,
gint toplevel_y,
GdkModifierType mask,
guint32 time_,
GdkEvent *event_in_queue,
gulong serial,
gboolean non_linear);
void _gdk_display_set_window_under_pointer (GdkDisplay *display,
GdkWindow *window);
void _gdk_synthesize_crossing_events_for_geometry_change (GdkWindow *changed_window);
GdkRegion *_gdk_window_calculate_full_clip_region (GdkWindow *window,
GdkWindow *base_window,
gboolean do_children,
gint *base_x_offset,
gint *base_y_offset);
gboolean _gdk_window_has_impl (GdkWindow *window);
GdkWindow * _gdk_window_get_impl_window (GdkWindow *window);
GdkWindow *_gdk_window_get_input_window_for_event (GdkWindow *native_window,
GdkEventType event_type,
int x, int y,
gulong serial);
GdkRegion *_gdk_region_new_from_yxbanded_rects (GdkRectangle *rects, int n_rects);
/*****************************
* offscreen window routines *
*****************************/
GType gdk_offscreen_window_get_type (void);
void _gdk_offscreen_window_new (GdkWindow *window,
GdkScreen *screen,
GdkVisual *visual,
GdkWindowAttr *attributes,
gint attributes_mask);
/************************************
* Initialization and exit routines *
************************************/
void _gdk_image_exit (void);
void _gdk_windowing_exit (void);
G_END_DECLS
#endif /* __GDK_INTERNALS_H__ */
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