gdkwindow.h

windows平台下开发gtk程序所需要的库和头文件等

/* 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/.
 */

#if defined(GTK_DISABLE_SINGLE_INCLUDES) && !defined (__GDK_H_INSIDE__) && !defined (GDK_COMPILATION)
#error "Only <gdk/gdk.h> can be included directly."
#endif

#ifndef __GDK_WINDOW_H__
#define __GDK_WINDOW_H__

#include <gdk/gdkdrawable.h>
#include <gdk/gdktypes.h>
#include <gdk/gdkevents.h>

G_BEGIN_DECLS

typedef struct _GdkGeometry           GdkGeometry;
typedef struct _GdkWindowAttr	      GdkWindowAttr;
typedef struct _GdkPointerHooks	      GdkPointerHooks;
typedef struct _GdkWindowRedirect     GdkWindowRedirect;

/* Classes of windows.
 *   InputOutput: Almost every window should be of this type. Such windows
 *		  receive events and are also displayed on screen.
 *   InputOnly: Used only in special circumstances when events need to be
 *		stolen from another window or windows. Input only windows
 *		have no visible output, so they are handy for placing over
 *		top of a group of windows in order to grab the events (or
 *		filter the events) from those windows.
 */
typedef enum
{
  GDK_INPUT_OUTPUT,
  GDK_INPUT_ONLY
} GdkWindowClass;

/* Types of windows.
 *   Root: There is only 1 root window and it is initialized
 *	   at startup. Creating a window of type GDK_WINDOW_ROOT
 *	   is an error.
 *   Toplevel: Windows which interact with the window manager.
 *   Child: Windows which are children of some other type of window.
 *	    (Any other type of window). Most windows are child windows.
 *   Dialog: A special kind of toplevel window which interacts with
 *	     the window manager slightly differently than a regular
 *	     toplevel window. Dialog windows should be used for any
 *	     transient window.
 *   Foreign: A window that actually belongs to another application
 */
typedef enum
{
  GDK_WINDOW_ROOT,
  GDK_WINDOW_TOPLEVEL,
  GDK_WINDOW_CHILD,
  GDK_WINDOW_DIALOG,
  GDK_WINDOW_TEMP,
  GDK_WINDOW_FOREIGN
} GdkWindowType;

/* Window attribute mask values.
 *   GDK_WA_TITLE: The "title" field is valid.
 *   GDK_WA_X: The "x" field is valid.
 *   GDK_WA_Y: The "y" field is valid.
 *   GDK_WA_CURSOR: The "cursor" field is valid.
 *   GDK_WA_COLORMAP: The "colormap" field is valid.
 *   GDK_WA_VISUAL: The "visual" field is valid.
 */
typedef enum
{
  GDK_WA_TITLE	   = 1 << 1,
  GDK_WA_X	   = 1 << 2,
  GDK_WA_Y	   = 1 << 3,
  GDK_WA_CURSOR	   = 1 << 4,
  GDK_WA_COLORMAP  = 1 << 5,
  GDK_WA_VISUAL	   = 1 << 6,
  GDK_WA_WMCLASS   = 1 << 7,
  GDK_WA_NOREDIR   = 1 << 8,
  GDK_WA_TYPE_HINT = 1 << 9
} GdkWindowAttributesType;

/* Size restriction enumeration.
 */
typedef enum
{
  GDK_HINT_POS	       = 1 << 0,
  GDK_HINT_MIN_SIZE    = 1 << 1,
  GDK_HINT_MAX_SIZE    = 1 << 2,
  GDK_HINT_BASE_SIZE   = 1 << 3,
  GDK_HINT_ASPECT      = 1 << 4,
  GDK_HINT_RESIZE_INC  = 1 << 5,
  GDK_HINT_WIN_GRAVITY = 1 << 6,
  GDK_HINT_USER_POS    = 1 << 7,
  GDK_HINT_USER_SIZE   = 1 << 8
} GdkWindowHints;


/* Window type hints.
 * These are hints for the window manager that indicate
 * what type of function the window has. The window manager
 * can use this when determining decoration and behaviour
 * of the window. The hint must be set before mapping the
 * window.
 *
 *   Normal: Normal toplevel window
 *   Dialog: Dialog window
 *   Menu: Window used to implement a menu.
 *   Toolbar: Window used to implement toolbars.
 */
typedef enum
{
  GDK_WINDOW_TYPE_HINT_NORMAL,
  GDK_WINDOW_TYPE_HINT_DIALOG,
  GDK_WINDOW_TYPE_HINT_MENU,		/* Torn off menu */
  GDK_WINDOW_TYPE_HINT_TOOLBAR,
  GDK_WINDOW_TYPE_HINT_SPLASHSCREEN,
  GDK_WINDOW_TYPE_HINT_UTILITY,
  GDK_WINDOW_TYPE_HINT_DOCK,
  GDK_WINDOW_TYPE_HINT_DESKTOP,
  GDK_WINDOW_TYPE_HINT_DROPDOWN_MENU,	/* A drop down menu (from a menubar) */
  GDK_WINDOW_TYPE_HINT_POPUP_MENU,	/* A popup menu (from right-click) */
  GDK_WINDOW_TYPE_HINT_TOOLTIP,
  GDK_WINDOW_TYPE_HINT_NOTIFICATION,
  GDK_WINDOW_TYPE_HINT_COMBO,
  GDK_WINDOW_TYPE_HINT_DND
} GdkWindowTypeHint;

/* The next two enumeration values current match the
 * Motif constants. If this is changed, the implementation
 * of gdk_window_set_decorations/gdk_window_set_functions
 * will need to change as well.
 */
typedef enum
{
  GDK_DECOR_ALL		= 1 << 0,
  GDK_DECOR_BORDER	= 1 << 1,
  GDK_DECOR_RESIZEH	= 1 << 2,
  GDK_DECOR_TITLE	= 1 << 3,
  GDK_DECOR_MENU	= 1 << 4,
  GDK_DECOR_MINIMIZE	= 1 << 5,
  GDK_DECOR_MAXIMIZE	= 1 << 6
} GdkWMDecoration;

typedef enum
{
  GDK_FUNC_ALL		= 1 << 0,
  GDK_FUNC_RESIZE	= 1 << 1,
  GDK_FUNC_MOVE		= 1 << 2,
  GDK_FUNC_MINIMIZE	= 1 << 3,
  GDK_FUNC_MAXIMIZE	= 1 << 4,
  GDK_FUNC_CLOSE	= 1 << 5
} GdkWMFunction;

/* Currently, these are the same values numerically as in the
 * X protocol. If you change that, gdkwindow-x11.c/gdk_window_set_geometry_hints()
 * will need fixing.
 */
typedef enum
{
  GDK_GRAVITY_NORTH_WEST = 1,
  GDK_GRAVITY_NORTH,
  GDK_GRAVITY_NORTH_EAST,
  GDK_GRAVITY_WEST,
  GDK_GRAVITY_CENTER,
  GDK_GRAVITY_EAST,
  GDK_GRAVITY_SOUTH_WEST,
  GDK_GRAVITY_SOUTH,
  GDK_GRAVITY_SOUTH_EAST,
  GDK_GRAVITY_STATIC
} GdkGravity;


typedef enum
{
  GDK_WINDOW_EDGE_NORTH_WEST,
  GDK_WINDOW_EDGE_NORTH,
  GDK_WINDOW_EDGE_NORTH_EAST,
  GDK_WINDOW_EDGE_WEST,
  GDK_WINDOW_EDGE_EAST,
  GDK_WINDOW_EDGE_SOUTH_WEST,
  GDK_WINDOW_EDGE_SOUTH,
  GDK_WINDOW_EDGE_SOUTH_EAST  
} GdkWindowEdge;

struct _GdkWindowAttr
{
  gchar *title;
  gint event_mask;
  gint x, y;
  gint width;
  gint height;
  GdkWindowClass wclass;
  GdkVisual *visual;
  GdkColormap *colormap;
  GdkWindowType window_type;
  GdkCursor *cursor;
  gchar *wmclass_name;
  gchar *wmclass_class;
  gboolean override_redirect;
  GdkWindowTypeHint type_hint;
};

struct _GdkGeometry
{
  gint min_width;
  gint min_height;
  gint max_width;
  gint max_height;
  gint base_width;
  gint base_height;
  gint width_inc;
  gint height_inc;
  gdouble min_aspect;
  gdouble max_aspect;
  GdkGravity win_gravity;
};

struct _GdkPointerHooks 
{
  GdkWindow* (*get_pointer)       (GdkWindow	   *window,
			           gint	           *x,
			           gint   	   *y,
			           GdkModifierType *mask);
  GdkWindow* (*window_at_pointer) (GdkScreen       *screen, /* unused */
                                   gint            *win_x,
                                   gint            *win_y);
};

typedef struct _GdkWindowObject GdkWindowObject;
typedef struct _GdkWindowObjectClass GdkWindowObjectClass;

#define GDK_TYPE_WINDOW              (gdk_window_object_get_type ())
#define GDK_WINDOW(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WINDOW, GdkWindow))
#define GDK_WINDOW_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_WINDOW, GdkWindowObjectClass))
#define GDK_IS_WINDOW(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_WINDOW))
#define GDK_IS_WINDOW_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_WINDOW))
#define GDK_WINDOW_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_WINDOW, GdkWindowObjectClass))
#define GDK_WINDOW_OBJECT(object)    ((GdkWindowObject *) GDK_WINDOW (object))

struct _GdkWindowObject
{
  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;
};

struct _GdkWindowObjectClass
{
  GdkDrawableClass parent_class;
};

/* Windows
 */
GType         gdk_window_object_get_type       (void) G_GNUC_CONST;
GdkWindow*    gdk_window_new                   (GdkWindow     *parent,
                                                GdkWindowAttr *attributes,
                                                gint           attributes_mask);
void          gdk_window_destroy               (GdkWindow     *window);
GdkWindowType gdk_window_get_window_type       (GdkWindow     *window);
GdkWindow*    gdk_window_at_pointer            (gint          *win_x,
                                                gint          *win_y);
void          gdk_window_show                  (GdkWindow     *window);
void          gdk_window_hide                  (GdkWindow     *window);
void          gdk_window_withdraw              (GdkWindow     *window);
void          gdk_window_show_unraised         (GdkWindow     *window);
void          gdk_window_move                  (GdkWindow     *window,
                                                gint           x,
                                                gint           y);
void          gdk_window_resize                (GdkWindow     *window,
                                                gint           width,
                                                gint           height);