forked from AuroraMiddleware/gtk
47257b075b
2006-04-11 Anders Carlsson <andersca@imendio.com>
* gdk/gdkinternals.h:
* gdk/gdkwindow.c:
(_gdk_paintable_get_type):
(gdk_window_begin_paint_region):
(gdk_window_end_paint):
(gdk_window_process_updates):
(gdk_window_invalidate_maybe_recurse):
Add new GdkPaintable interface which implementation objects can
implement in order to override gdk painting functions.
417 lines
13 KiB
C
417 lines
13 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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/* Uninstalled header defining types and functions internal to GDK */
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#include <gdk/gdktypes.h>
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#include <gdk/gdkwindow.h>
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#include <gdk/gdkprivate.h>
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#ifndef __GDK_INTERNALS_H__
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#define __GDK_INTERNALS_H__
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/**********************
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* General Facilities *
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**********************/
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/* Debugging support */
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typedef struct _GdkColorInfo GdkColorInfo;
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typedef struct _GdkEventFilter GdkEventFilter;
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typedef struct _GdkClientFilter GdkClientFilter;
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typedef enum {
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GDK_COLOR_WRITEABLE = 1 << 0
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} GdkColorInfoFlags;
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struct _GdkColorInfo
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{
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GdkColorInfoFlags flags;
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guint ref_count;
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};
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struct _GdkEventFilter {
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GdkFilterFunc function;
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gpointer data;
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};
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struct _GdkClientFilter {
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GdkAtom type;
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GdkFilterFunc function;
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gpointer data;
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};
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typedef enum {
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GDK_DEBUG_MISC = 1 << 0,
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GDK_DEBUG_EVENTS = 1 << 1,
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GDK_DEBUG_DND = 1 << 2,
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GDK_DEBUG_XIM = 1 << 3,
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GDK_DEBUG_NOGRABS = 1 << 4,
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GDK_DEBUG_COLORMAP = 1 << 5,
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GDK_DEBUG_GDKRGB = 1 << 6,
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GDK_DEBUG_GC = 1 << 7,
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GDK_DEBUG_PIXMAP = 1 << 8,
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GDK_DEBUG_IMAGE = 1 << 9,
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GDK_DEBUG_INPUT = 1 <<10,
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GDK_DEBUG_CURSOR = 1 <<11,
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GDK_DEBUG_MULTIHEAD = 1 <<12,
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GDK_DEBUG_XINERAMA = 1 <<13,
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GDK_DEBUG_DRAW = 1 <<14
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} GdkDebugFlag;
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#ifndef GDK_DISABLE_DEPRECATED
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typedef struct _GdkFontPrivate GdkFontPrivate;
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struct _GdkFontPrivate
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{
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GdkFont font;
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guint ref_count;
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};
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#endif /* GDK_DISABLE_DEPRECATED */
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extern GList *_gdk_default_filters;
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extern GdkWindow *_gdk_parent_root;
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extern gint _gdk_error_code;
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extern gint _gdk_error_warnings;
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extern guint _gdk_debug_flags;
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#ifdef G_ENABLE_DEBUG
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#define GDK_NOTE(type,action) G_STMT_START { \
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if (_gdk_debug_flags & GDK_DEBUG_##type) \
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{ action; }; } G_STMT_END
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#else /* !G_ENABLE_DEBUG */
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#define GDK_NOTE(type,action)
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#endif /* G_ENABLE_DEBUG */
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/* Arg parsing */
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typedef enum
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{
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GDK_ARG_STRING,
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GDK_ARG_INT,
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GDK_ARG_BOOL,
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GDK_ARG_NOBOOL,
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GDK_ARG_CALLBACK
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} GdkArgType;
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typedef struct _GdkArgContext GdkArgContext;
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typedef struct _GdkArgDesc GdkArgDesc;
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typedef void (*GdkArgFunc) (const char *name, const char *arg, gpointer data);
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struct _GdkArgContext
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{
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GPtrArray *tables;
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gpointer cb_data;
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};
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struct _GdkArgDesc
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{
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const char *name;
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GdkArgType type;
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gpointer location;
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GdkArgFunc callback;
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};
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/* Event handling */
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typedef struct _GdkEventPrivate GdkEventPrivate;
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typedef enum
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{
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/* Following flag is set for events on the event queue during
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* translation and cleared afterwards.
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*/
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GDK_EVENT_PENDING = 1 << 0
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} GdkEventFlags;
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struct _GdkEventPrivate
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{
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GdkEvent event;
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guint flags;
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GdkScreen *screen;
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};
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extern GdkEventFunc _gdk_event_func; /* Callback for events */
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extern gpointer _gdk_event_data;
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extern GDestroyNotify _gdk_event_notify;
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extern GSList *_gdk_displays;
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extern gchar *_gdk_display_name;
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extern gint _gdk_screen_number;
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extern gchar *_gdk_display_arg_name;
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void _gdk_events_queue (GdkDisplay *display);
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GdkEvent* _gdk_event_unqueue (GdkDisplay *display);
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GList* _gdk_event_queue_find_first (GdkDisplay *display);
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void _gdk_event_queue_remove_link (GdkDisplay *display,
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GList *node);
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GList* _gdk_event_queue_append (GdkDisplay *display,
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GdkEvent *event);
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void _gdk_event_button_generate (GdkDisplay *display,
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GdkEvent *event);
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void gdk_synthesize_window_state (GdkWindow *window,
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GdkWindowState unset_flags,
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GdkWindowState set_flags);
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#define GDK_SCRATCH_IMAGE_WIDTH 256
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#define GDK_SCRATCH_IMAGE_HEIGHT 64
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GdkImage* _gdk_image_new_for_depth (GdkScreen *screen,
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GdkImageType type,
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GdkVisual *visual,
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gint width,
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gint height,
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gint depth);
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GdkImage *_gdk_image_get_scratch (GdkScreen *screen,
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gint width,
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gint height,
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gint depth,
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gint *x,
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gint *y);
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GdkImage *_gdk_drawable_copy_to_image (GdkDrawable *drawable,
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GdkImage *image,
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gint src_x,
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gint src_y,
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gint dest_x,
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gint dest_y,
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gint width,
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gint height);
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cairo_surface_t *_gdk_drawable_ref_cairo_surface (GdkDrawable *drawable);
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/* GC caching */
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GdkGC *_gdk_drawable_get_scratch_gc (GdkDrawable *drawable,
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gboolean graphics_exposures);
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void _gdk_gc_update_context (GdkGC *gc,
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cairo_t *cr,
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GdkColor *override_foreground,
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GdkBitmap *override_stipple,
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gboolean gc_changed);
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/*************************************
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* Interfaces used by windowing code *
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*************************************/
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void _gdk_window_destroy (GdkWindow *window,
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gboolean foreign_destroy);
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void _gdk_window_clear_update_area (GdkWindow *window);
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void _gdk_screen_close (GdkScreen *screen);
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const char *_gdk_get_sm_client_id (void);
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void _gdk_gc_init (GdkGC *gc,
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GdkDrawable *drawable,
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GdkGCValues *values,
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GdkGCValuesMask values_mask);
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GdkRegion *_gdk_gc_get_clip_region (GdkGC *gc);
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GdkFill _gdk_gc_get_fill (GdkGC *gc);
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GdkPixmap *_gdk_gc_get_tile (GdkGC *gc);
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GdkBitmap *_gdk_gc_get_stipple (GdkGC *gc);
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guint32 _gdk_gc_get_fg_pixel (GdkGC *gc);
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guint32 _gdk_gc_get_bg_pixel (GdkGC *gc);
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/*****************************************
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* Interfaces provided by windowing code *
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*****************************************/
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/* Font/string functions implemented in module-specific code */
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gint _gdk_font_strlen (GdkFont *font, const char *str);
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void _gdk_font_destroy (GdkFont *font);
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void _gdk_colormap_real_destroy (GdkColormap *colormap);
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void _gdk_cursor_destroy (GdkCursor *cursor);
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void _gdk_windowing_init (void);
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extern const GOptionEntry _gdk_windowing_args[];
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void _gdk_windowing_set_default_display (GdkDisplay *display);
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gchar *_gdk_windowing_substitute_screen_number (const gchar *display_name,
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gint screen_number);
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void _gdk_windowing_window_get_offsets (GdkWindow *window,
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gint *x_offset,
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gint *y_offset);
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void _gdk_windowing_window_clear_area (GdkWindow *window,
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gint x,
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gint y,
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gint width,
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gint height);
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void _gdk_windowing_window_clear_area_e (GdkWindow *window,
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gint x,
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gint y,
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gint width,
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gint height);
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void _gdk_windowing_get_pointer (GdkDisplay *display,
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GdkScreen **screen,
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gint *x,
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gint *y,
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GdkModifierType *mask);
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GdkWindow* _gdk_windowing_window_get_pointer (GdkDisplay *display,
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GdkWindow *window,
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gint *x,
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gint *y,
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GdkModifierType *mask);
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GdkWindow* _gdk_windowing_window_at_pointer (GdkDisplay *display,
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gint *win_x,
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gint *win_y);
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/* Return the number of bits-per-pixel for images of the specified depth. */
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gint _gdk_windowing_get_bits_for_depth (GdkDisplay *display,
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gint depth);
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#define GDK_WINDOW_IS_MAPPED(window) ((((GdkWindowObject*)window)->state & GDK_WINDOW_STATE_WITHDRAWN) == 0)
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/* Called before processing updates for a window. This gives the windowing
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* layer a chance to save the region for later use in avoiding duplicate
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* exposes. The return value indicates whether the function has a saved
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* the region; if the result is TRUE, then the windowing layer is responsible
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* for destroying the region later.
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*/
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gboolean _gdk_windowing_window_queue_antiexpose (GdkWindow *window,
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GdkRegion *area);
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/* Called to do the windowing system specific part of gdk_window_destroy(),
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*
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* window: The window being destroyed
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* recursing: If TRUE, then this is being called because a parent
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* was destroyed. This generally means that the call to the windowing system
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* to destroy the window can be omitted, since it will be destroyed as a result
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* of the parent being destroyed. Unless @foreign_destroy
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*
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* foreign_destroy: If TRUE, the window or a parent was destroyed by some external
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* agency. The window has already been destroyed and no windowing
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* system calls should be made. (This may never happen for some
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* windowing systems.)
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*/
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void _gdk_windowing_window_destroy (GdkWindow *window,
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gboolean recursing,
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gboolean foreign_destroy);
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/* Called when gdk_window_destroy() is called on a foreign window
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* or an ancestor of the foreign window. It should generally reparent
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* the window out of it's current heirarchy, hide it, and then
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* send a message to the owner requesting that the window be destroyed.
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*/
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void _gdk_windowing_window_destroy_foreign (GdkWindow *window);
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void _gdk_windowing_display_set_sm_client_id (GdkDisplay *display,
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const gchar *sm_client_id);
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#define GDK_TYPE_PAINTABLE (_gdk_paintable_get_type ())
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#define GDK_PAINTABLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_PAINTABLE, GdkPaintable))
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#define GDK_IS_PAINTABLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_PAINTABLE))
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#define GDK_PAINTABLE_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GDK_TYPE_PAINTABLE, GdkPaintableIface))
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typedef struct _GdkPaintable GdkPaintable;
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typedef struct _GdkPaintableIface GdkPaintableIface;
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struct _GdkPaintableIface
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{
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GTypeInterface g_iface;
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void (* begin_paint_region) (GdkPaintable *paintable,
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GdkRegion *region);
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void (* end_paint) (GdkPaintable *paintable);
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void (* invalidate_maybe_recurse) (GdkPaintable *paintable,
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GdkRegion *region,
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gboolean (*child_func) (GdkWindow *, gpointer),
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gpointer user_data);
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void (* process_updates) (GdkPaintable *paintable,
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gboolean update_children);
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};
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GType _gdk_paintable_get_type (void) G_GNUC_CONST;
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/* Implementation types */
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GType _gdk_window_impl_get_type (void) G_GNUC_CONST;
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GType _gdk_pixmap_impl_get_type (void) G_GNUC_CONST;
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/**
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* _gdk_windowing_gc_set_clip_region:
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* @gc: a #GdkGC
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* @region: the new clip region
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*
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* Do any window-system specific processing necessary
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* for a change in clip region. Since the clip origin
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* will likely change before the GC is used with the
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* new clip, frequently this function will only set a flag and
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* do the real processing later.
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*
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* When this function is called, _gdk_gc_get_clip_region
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* will already return the new region.
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**/
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void _gdk_windowing_gc_set_clip_region (GdkGC *gc,
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GdkRegion *region);
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/**
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* _gdk_windowing_gc_copy:
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* @dst_gc: a #GdkGC from the GDK backend
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* @src_gc: a #GdkGC from the GDK backend
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*
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* Copies backend specific state from @src_gc to @dst_gc.
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* This is called before the generic state is copied, so
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* the old generic state is still available from @dst_gc
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**/
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void _gdk_windowing_gc_copy (GdkGC *dst_gc,
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GdkGC *src_gc);
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/* Queries the current foreground color of a GdkGC */
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void _gdk_windowing_gc_get_foreground (GdkGC *gc,
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GdkColor *color);
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/* Queries the current background color of a GdkGC */
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void _gdk_windowing_gc_get_background (GdkGC *gc,
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GdkColor *color);
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/************************************
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* Initialization and exit routines *
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************************************/
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void _gdk_image_exit (void);
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void _gdk_windowing_exit (void);
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G_END_DECLS
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#endif /* __GDK_INTERNALS_H__ */
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