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/* Definitions and headers for communication on the pure Gtk+3.
   Copyright (C) 1995, 2005, 2008-2017 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.

GNU Emacs 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */

#ifndef __PGTKGUI_H__
#define __PGTKGUI_H__

/* Emulate XCharStruct.  */
typedef struct _XCharStruct
{
  int rbearing;
  int lbearing;
  int width;
  int ascent;
  int descent;
} XCharStruct;

/* Fake structure from Xlib.h to represent two-byte characters.  */
typedef unsigned short unichar;
typedef unichar XChar2b;

#define STORE_XCHAR2B(chp, b1, b2) \
  (*(chp) = ((XChar2b)((((b1) & 0x00ff) << 8) | ((b2) & 0x00ff))))

#define XCHAR2B_BYTE1(chp) \
  ((*(chp) & 0xff00) >> 8)

#define XCHAR2B_BYTE2(chp) \
  (*(chp) & 0x00ff)


/* XXX: xfaces requires these structures, but the question is are we
        forced to use them? */
typedef struct _XGCValues
{
  unsigned long foreground;
  unsigned long background;
  void *font;
} XGCValues;

typedef XGCValues * GC;

#define GCForeground 0x01
#define GCBackground 0x02
#define GCFont 0x03

typedef void *Pixmap;

typedef void *Cursor;

#define No_Cursor (0)

typedef void * Color;
typedef int Window;
typedef struct _GdkDisplay Display;

/* Xism */
typedef Lisp_Object XrmDatabase;


/* some sort of attempt to normalize rectangle handling.. seems a bit much
   for what is accomplished */
typedef struct {
      int x, y;
      unsigned width, height;
} XRectangle;

#define NativeRectangle XRectangle

#define CONVERT_TO_EMACS_RECT(xr, nr)		\
  ((xr).x     = (nr).origin.x,			\
   (xr).y     = (nr).origin.y,			\
   (xr).width = (nr).size.width,		\
   (xr).height = (nr).size.height)

#define CONVERT_FROM_EMACS_RECT(xr, nr)	\
  ((nr).x    = (xr).x,			\
   (nr).y    = (xr).y,			\
   (nr).width  = (xr).width,		\
   (nr).height = (xr).height)

#define STORE_NATIVE_RECT(nr, px, py, pwidth, pheight)	\
  ((nr).x    = (px),			\
   (nr).y    = (py),			\
   (nr).width  = (pwidth),		\
   (nr).height = (pheight))

/* This stuff needed by frame.c. */
#define ForgetGravity		0
#define NorthWestGravity	1
#define NorthGravity		2
#define NorthEastGravity	3
#define WestGravity		4
#define CenterGravity		5
#define EastGravity		6
#define SouthWestGravity	7
#define SouthGravity		8
#define SouthEastGravity	9
#define StaticGravity		10

#define NoValue		0x0000
#define XValue  	0x0001
#define YValue		0x0002
#define WidthValue  	0x0004
#define HeightValue  	0x0008
#define AllValues 	0x000F
#define XNegative 	0x0010
#define YNegative 	0x0020

#define USPosition	(1L << 0) /* user specified x, y */
#define USSize		(1L << 1) /* user specified width, height */

#define PPosition	(1L << 2) /* program specified position */
#define PSize		(1L << 3) /* program specified size */
#define PMinSize	(1L << 4) /* program specified minimum size */
#define PMaxSize	(1L << 5) /* program specified maximum size */
#define PResizeInc	(1L << 6) /* program specified resize increments */
#define PAspect		(1L << 7) /* program specified min, max aspect ratios */
#define PBaseSize	(1L << 8) /* program specified base for incrementing */
#define PWinGravity	(1L << 9) /* program specified window gravity */

#endif  /* __PGTKGUI_H__ */