#ifndef _TEK_DISPLAY_X11_MOD_H
#define _TEK_DISPLAY_X11_MOD_H

/*
**	teklib/src/visual/display_x11_mod.h - X11 Display Driver
**	Written by Timm S. Mueller <tmueller at neoscientists.org>
**	See copyright notice in teklib/COPYRIGHT
*/

#include <tek/debug.h>
#include <tek/teklib.h>
#include <tek/mod/visual.h>
#include <tek/lib/region.h>
#include <tek/lib/utf8.h>

#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/XKBlib.h>

#if defined(ENABLE_XFT)
#include <X11/Xft/Xft.h>
#endif

#if defined(ENABLE_XSHM)
#include <sys/shm.h>
#include <X11/extensions/XShm.h>
#endif

#if defined(ENABLE_XVID)
#include <X11/extensions/xf86vmode.h>
#endif

/*****************************************************************************/

#define X11DISPLAY_VERSION		1
#define X11DISPLAY_REVISION		1
#define X11DISPLAY_NUMVECTORS	10

#define X11_UTF8_BUFSIZE 4096

#ifndef LOCAL
#define LOCAL
#endif

#ifndef EXPORT
#define EXPORT TMODAPI
#endif

#define X11_DEF_WINWIDTH 600
#define X11_DEF_WINHEIGHT 400

/*****************************************************************************/

#define X11FNT_LENGTH			41
#define X11FNT_DEFNAME			"fixed"
#define X11FNT_WGHT_MEDIUM		"medium"
#define	X11FNT_WGHT_BOLD		"bold"
#define X11FNT_SLANT_R			"r"
#define X11FNT_SLANT_I			"i"
#define X11FNT_DEFPXSIZE		14
#define	X11FNT_DEFREGENC		"iso8859-1"
#define	X11FNT_WILDCARD			"*"

#define X11FNTQUERY_NUMATTR	(5+1)
#define	X11FNTQUERY_UNDEFINED	0xffffffff

#define X11FNT_ITALIC			0x1
#define	X11FNT_BOLD				0x2
#define X11FNT_UNDERLINE		0x4

#define X11FNT_MATCH_NAME		0x01
#define X11FNT_MATCH_SIZE		0x02
#define X11FNT_MATCH_SLANT		0x04
#define	X11FNT_MATCH_WEIGHT		0x08
#define	X11FNT_MATCH_SCALE		0x10

/* all mandatory properties: */
#define X11FNT_MATCH_ALL		0x0f

struct X11FontMan
{
	struct TList openfonts;		/* list of opened fonts */
	TAPTR deffont;				/* pointer to default font */
	TINT defref;				/* count of references to default font */
};

struct X11FontHandle
{
	struct THandle handle;
	XFontStruct *font;
#if defined(ENABLE_XFT)
	XftFont *xftfont;
#endif
	TUINT attr;
	TUINT pxsize;
};

struct X11FontQueryNode
{
	struct TNode node;
	TTAGITEM tags[X11FNTQUERY_NUMATTR];
};

struct X11FontQueryHandle
{
	struct THandle handle;
	struct TList reslist;
	struct TNode **nptr;
};

/* internal structures */

struct X11FontNode
{
	struct TNode node;
	TSTRPTR fname;
};

struct X11FontAttr
{
	struct TList fnlist;		/* list of fontnames */
	TSTRPTR fname;
	TUINT fpxsize;
	TUINT flags;
	TBOOL fitalic;
	TBOOL fbold;
	TBOOL fscale;
	TINT fnum;
};

#define X11FL_SWAPBYTEORDER		0x0001
#define X11FL_USE_XFT			0x0002
#define X11FL_SHMAVAIL			0x0004
#define X11FL_FULLSCREEN		0x0008
#define X11WFL_IMG_SHM			0x0010
#define X11WFL_WAIT_EXPOSE		0x0020
#define X11WFL_WAIT_RESIZE		0x0040
#define X11WFL_CHANGE_VIDMODE	0x0080
#define X11WFL_IS_ROOTWINDOW	0x0100

/*****************************************************************************/

struct X11Display
{
	/* Module header: */
	struct TModule x11_Module;
	/* Module global memory manager (thread safe): */
	TAPTR x11_MemMgr;
	/* Locking for module base structure: */
	TAPTR x11_Lock;
	/* Number of module opens: */
	TUINT x11_RefCount;
	/* Task: */
	TAPTR x11_Task;
	/* Command message port: */
	TAPTR x11_CmdPort;

	/* X11 display: */
	Display *x11_Display;
	/* default X11 screen number: */
	int x11_Screen;
	/* default X11 visual: */
	Visual *x11_Visual;

	TAPTR x11_IReplyPort;
	struct THook x11_IReplyHook;

	TUINT x11_Flags;
	
	TINT x11_DefaultBPP;
	TINT x11_DefaultDepth;
	TINT x11_ByteOrder;

	int x11_fd_display;
	int x11_fd_sigpipe_read;
	int x11_fd_sigpipe_write;
	int x11_fd_max;

	struct X11FontMan x11_fm;

	/* list of all visuals: */
	struct TList x11_vlist;

	struct TList x11_imsgpool;

	struct TVRequest *x11_RequestInProgress;
	struct THook *x11_CopyExposeHook;

	Region x11_HugeRegion;
	TINT x11_ShmEvent;

	TINT x11_KeyQual;
	TINT x11_ScreenMouseX, x11_ScreenMouseY;

	TUINT8 x11_utf8buffer[X11_UTF8_BUFSIZE];

	Cursor x11_NullCursor;
#if defined(ENABLE_DEFAULTCURSOR)
	Cursor x11_DefaultCursor;
#endif

	TTAGITEM *x11_InitTags;
	struct TMsgPort *x11_IMsgPort;

	TINT x11_ScreenWidth;
	TINT x11_ScreenHeight;

	/* vidmode screensize: */
	TINT x11_FullScreenWidth;
	TINT x11_FullScreenHeight;

	Atom x11_XA_TARGETS;
	Atom x11_XA_PRIMARY;
	Atom x11_XA_CLIPBOARD;
	Atom x11_XA_UTF8_STRING;
	Atom x11_XA_STRING;
	Atom x11_XA_COMPOUND_TEXT;

#if defined(ENABLE_XVID)
	XF86VidModeModeInfo x11_OldMode;
	XF86VidModeModeInfo x11_VidMode;
#endif

	TINT x11_NumWindows;
	TINT x11_NumInterval;
};

struct X11Pen
{
	struct TNode node;
	XColor color;
#if defined(ENABLE_XFT)
	XftColor xftcolor;
#endif
};

struct X11Window
{
	struct TNode node;

	TINT winwidth, winheight;
	TINT winleft, wintop;
	TSTRPTR title;

	Window window;

	Colormap colormap;
	GC gc;

#if defined(ENABLE_XFT)
	XftDraw *draw;
#endif
	TAPTR curfont;				/* current active font */

	Atom atom_wm_delete_win;

	TUINT base_mask;
	TUINT eventmask;
	
	TUINT flags;

	TVPEN bgpen, fgpen;

	XImage *image;
	char *tempbuf;
	int imw, imh;

	XSizeHints *sizehints;

	struct TList imsgqueue;
	TAPTR imsgport;

	/* list of allocated pens: */
	struct TList penlist;

#if defined(ENABLE_XSHM)
	XShmSegmentInfo shminfo;
	size_t shmsize;
#endif

	/* userdata attached to this window, also propagated in messages: */
	TTAG userdata;

	TUINT pixfmt;
	TUINT bpp;

	TINT mousex, mousey;
};

struct attrdata
{
	struct X11Display *mod;
	struct X11Window *v;
	TAPTR font;
	TINT num;
	TBOOL sizechanged;
	TINT neww, newh, newx, newy;
};

/*****************************************************************************/

LOCAL TSTRPTR x11_utf8tolatin(struct X11Display *mod, TSTRPTR utf8string,
	TINT len, TINT *bytelen);

LOCAL void x11_docmd(struct X11Display *inst, struct TVRequest *req);

LOCAL void x11_sendimessages(struct X11Display *mod);
LOCAL TTASKENTRY void x11_taskfunc(struct TTask *task);

LOCAL TBOOL x11_initlibxft(struct X11Display *mod);
LOCAL void x11_exitlibxft(struct X11Display *mod);
LOCAL void x11_hostsetfont(struct X11Display *mod, struct X11Window *v,
	TAPTR font);
LOCAL TAPTR x11_hostopenfont(struct X11Display *mod, TTAGITEM *tags);
LOCAL TAPTR x11_hostqueryfonts(struct X11Display *mod, TTAGITEM *tags);
LOCAL void x11_hostclosefont(struct X11Display *mod, TAPTR font);
LOCAL TINT x11_hosttextsize(struct X11Display *mod, TAPTR font, TSTRPTR text,
	TINT len);
LOCAL THOOKENTRY TTAG x11_hostgetfattrfunc(struct THook *hook, TAPTR obj,
	TTAG msg);
LOCAL TTAGITEM *x11_hostgetnextfont(struct X11Display *mod, TAPTR fqhandle);

#endif /* _TEK_DISPLAY_X11_MOD_H */