src/x11/nanox.c

/*
 * nanox.c
 *
 * Replacements for some comomon Xlib functions
 * Licence: The wxWidgets licence
 */

#include "wx/setup.h"

#if wxUSE_NANOX

#include <ctype.h>
#include <malloc.h>
#include <string.h>
#include <stdio.h>
#include "wx/defs.h"
#include "wx/x11/nanox/X11/Xlib.h"

/* Expands to some compatibility functions (see XtoNX.h) */

STATIC_FUNCTIONS

static GR_PALETTE* s_globalColormap = 0;

Colormap DefaultColormapOfScreen(Screen* screen)
{
    if (!s_globalColormap)
    {
        s_globalColormap = (GR_PALETTE*) malloc(sizeof(GR_PALETTE));

        GrGetSystemPalette(s_globalColormap);
    }

    return s_globalColormap;
}

int XSetGraphicsExposures( Display* display, GC gc, Bool graphics_exposures)
{
    return Success ;
}

int XWarpPointer( Display* display, Window srcW, Window destW,
                 int srcX, int srcY,
                 unsigned int srcWidth,
                 unsigned int srcHeight,
                 int destX, int destY)
{
    GrMoveCursor(destX, destY);
    return Success;
}

int XSetInputFocus(Display* display, Window focus, int revert_to, Time time)
{
    GrSetFocus(focus);
    return Success;
}

int XGetInputFocus(Display* display, Window* focus_return, int* revert_to_return)
{
    * focus_return = GrGetFocus();
    * revert_to_return = 0;
    return Success;
}

int XGrabPointer(Display* display, Window grab_window,
                 Bool owner_events, unsigned int event_mask,
                 int pointer_mode, int keyboard_mode,
                 Window confine_to, Cursor cursor, Time time)
{
    /* According to comments in srvevent.c in Nano-X, the pointer
     * is implicitly grabbed when a mouse button is down.
     * We may be able to simulate this further in the event loop.
     */
    return Success;
}

int XUngrabPointer(Display* display, Time time)
{
    return Success;
}

int XCopyArea(Display* display, Drawable src, Drawable dest, GC gc,
              int src_x, int src_y, unsigned int width, unsigned int height,
              int dest_x, int dest_y)
{
    GrCopyArea(dest, gc, dest_x, dest_y,
			width, height, src,
			src_x, src_y, 0);
    return Success;
}

int XCopyPlane(Display* display, Drawable src, Drawable dest, GC gc,
              int src_x, int src_y, unsigned int width, unsigned int height,
              int dest_x, int dest_y, unsigned long plane)
{
    GrCopyArea(dest, gc, dest_x, dest_y,
			width, height, src,
			src_x, src_y, 0);
    return Success;
}

#if 0
typedef struct {
  GR_WINDOW_ID wid;		/* window id (or 0 if no such window) */
  GR_WINDOW_ID parent;		/* parent window id */
  GR_WINDOW_ID child;		/* first child window id (or 0) */
  GR_WINDOW_ID sibling;		/* next sibling window id (or 0) */
  GR_BOOL inputonly;		/* TRUE if window is input only */
  GR_BOOL mapped;		/* TRUE if window is mapped */
  GR_COUNT unmapcount;		/* reasons why window is unmapped */
  GR_COORD x;			/* absolute x position of window */
  GR_COORD y;			/* absolute y position of window */
  GR_SIZE width;		/* width of window */
  GR_SIZE height;		/* height of window */
  GR_SIZE bordersize;		/* size of border */
  GR_COLOR bordercolor;		/* color of border */
  GR_COLOR background;		/* background color */
  GR_EVENT_MASK eventmask;	/* current event mask for this client */
  GR_WM_PROPS props;		/* window properties */
  GR_CURSOR_ID cursor;		/* cursor id*/
  unsigned long processid;	/* process id of owner*/
} GR_WINDOW_INFO;

typedef struct {
     int x, y;		      /* location of window */
     int width, height;       /* width and height of window */
     int border_width;	      /* border width of window */
     int depth; 	      /* depth of window */
     Visual *visual;	      /* the associated visual structure */
     Window root;	      /* root of screen containing window */
     int class; 	      /* InputOutput, InputOnly*/
     int bit_gravity;	      /* one of the bit gravity values */
     int win_gravity;	      /* one of the window gravity values */
     int backing_store;       /* NotUseful, WhenMapped, Always */
     unsigned long backing_planes;/* planes to be preserved if possible */
     unsigned long backing_pixel;/* value to be used when restoring planes */
     Bool save_under;	      /* boolean, should bits under be saved? */
     Colormap colormap;       /* color map to be associated with window */
     Bool map_installed;      /* boolean, is color map currently installed*/
     int map_state;	      /* IsUnmapped, IsUnviewable, IsViewable */
     long all_event_masks;    /* set of events all people have interest in*/
     long your_event_mask;    /* my event mask */
     long do_not_propagate_mask;/* set of events that should not propagate */
     Bool override_redirect;  /* boolean value for override-redirect */
     Screen *screen;	      /* back pointer to correct screen */
} XWindowAttributes;

#endif


Status XGetWindowAttributes(Display* display, Window w,
                            XWindowAttributes* window_attributes)
{
    GR_WINDOW_INFO info;
    Window parent = 0;
    GrFlush();
    GrGetWindowInfo(w, & info);

    window_attributes->x = info.x;
    window_attributes->y = info.y;
    window_attributes->width = info.width;
    window_attributes->height = info.height;
    window_attributes->border_width = info.bordersize;
    window_attributes->depth = 0;
    window_attributes->visual = NULL;
    window_attributes->root = 0;
    window_attributes->_class = info.inputonly ? InputOnly : InputOutput ;
    window_attributes->bit_gravity = 0;
    window_attributes->win_gravity = 0;
    window_attributes->backing_store = 0;
    window_attributes->backing_planes = 0;
    window_attributes->backing_pixel = 0;
    window_attributes->save_under = FALSE;
    window_attributes->colormap = DefaultColormapOfScreen(0);
    window_attributes->map_installed = FALSE;
    window_attributes->map_state = info.mapped ? IsViewable : IsUnmapped ;
    window_attributes->all_event_masks = 0;
    window_attributes->do_not_propagate_mask = 0;
    window_attributes->override_redirect = FALSE;
    window_attributes->screen = NULL;

    /* We need to check if any parents are unmapped,
     * or we will report a window as mapped when it is not.
     */
    parent = info.parent;
    while (parent)
    {
        GrGetWindowInfo(parent, & info);
        if (info.mapped == 0)
            window_attributes->map_state = IsUnmapped;

        parent = info.parent;
    }

    return 1;
}

static XErrorHandler* g_ErrorHandler = NULL;

void DefaultNanoXErrorHandler(GR_EVENT_ERROR* ep)
{
    if (g_ErrorHandler)
    {
        XErrorEvent errEvent;
        errEvent.type = ep->type;
        errEvent.display = NULL;
        errEvent.resourceid = ep->id;
        errEvent.serial = 0;
        errEvent.error_code = ep->code;
        errEvent.request_code = 0;
        errEvent.minor_code = 0;
        (*g_ErrorHandler)(NULL, & errEvent);
    }
}

XErrorHandler XSetErrorHandler (XErrorHandler handler)
{
    XErrorHandler oldHandler = g_ErrorHandler;
    g_ErrorHandler = handler;
    GrSetErrorHandler(DefaultNanoXErrorHandler);
    return oldHandler;
}

static Screen s_screen;
Screen *XScreenOfDisplay(Display*		display,
                         int screen_number)
{
    /* TODO: fill in the members. See Xlib.h */
    return & s_screen;
}

int DisplayWidth(Display* display, int screen)
{
    return _display.display_width;
}

int DisplayHeight(Display* display, int screen)
{
    return _display.display_height;
}

int DefaultDepth(Display* display, int screen)
{
    return _display.display_bpp;
}

int XAllocColor(Display* display, Colormap cmap,
                XColor* color)
{
    GR_PIXELVAL pixel;
    GrFindColor(GR_RGB(color->red, color->green, color->blue), & pixel);
    color->pixel = pixel;
    return 1;
}

typedef struct {
    const char* name;
    unsigned int red;
    unsigned int green;
    unsigned int blue;
} _wxColourEntry;

static _wxColourEntry _wxColourDatabase[] =
{
    { "WHITE", 255, 255, 255 },
    { "BLACK", 0, 0, 0 },
    { "RED", 255, 0, 0 },
    { "GREEN", 0, 255, 0 },
    { "BLUE", 0, 255, 255 },
    { "GREY", 128, 128, 128 },
    { "GRAY", 128, 128, 128 },
    { "LIGHT GREY", 192, 192, 192 },
    { "LIGHT GRAY", 192, 192, 192 },
    { "DARK GREY", 32, 32, 32 },
    { "DARK GRAY", 32, 32, 32 },
    { "CYAN", 0, 255, 255 },
    { "MAGENTA", 255, 255, 0 },

    /* TODO: the rest */
    { NULL, 0, 0, 0 }
};

int XParseColor(Display* display, Colormap cmap,
                const char* cname, XColor* color)
{
    int i = 0;
    for (;;)
    {
        if (!_wxColourDatabase[i].name)
            break;
        else
        {
            if (strcmp(cname, _wxColourDatabase[i].name) == 0)
            {
                color->red = _wxColourDatabase[i].red;
                color->green = _wxColourDatabase[i].green;
                color->blue = _wxColourDatabase[i].blue;

                return 1;
            }
            i ++;
        }
    }

    /* Not found: use black */
    color->red = 0;
    color->green = 0;
    color->blue = 0;

    return 0;
}

int XDrawLine(Display* display, Window win, GC gc,
              int x1, int y1, int x2, int y2)
{
    GR_POINT points[2];
    points[0].x = x1;
    points[0].y = y1;
    points[1].x = x2;
    points[1].y = y2;

    GrDrawLines(win, gc, points, 2);
    return 1;
}

int XTextExtents( XFontStruct* font, char* s, int len, int* direction,
                  int* ascent, int* descent2, XCharStruct* overall)
{
    GR_SIZE retwidth, retheight, retbase;
    GR_GC_ID gc = GrNewGC();

    *ascent = font->info.baseline;
    *direction = 1; /* ? */
    *descent2 = 0; /* ? */

    GrSetGCFont(gc, font->fid);

    /* TODO need to set the relevant flags for the character set.
     * A good trick might be to pass a wxString instead of char*
     * to this function.
     */

    GrGetGCTextSize(gc, s, len, GR_TFASCII, & retwidth,
                    & retheight, & retbase);
    if (overall)
    {
        overall->width = retwidth;
        overall->lbearing = 0;
        overall->rbearing = 0;
        overall->ascent = *ascent;
        overall->descent = 0;
        overall->attributes = 0;
    }

    GrDestroyGC(gc);

    return 1;
}

XFontStruct* XLoadQueryFont(Display* display, const char* fontSpec)
{
    /* TODO: map fontSpec to something sensible for Nano-X */
    char *fontName = NULL;
    XFontStruct* fontInfo = malloc(sizeof(XFontStruct));
    fontInfo->fid = GrCreateFont(fontName, 0, 0);
    GrGetFontInfo(fontInfo->fid, & fontInfo->info);
    printf("Warning: should not call XLoadQueryFont since font spec is not used in Nano-X.\n");
    return fontInfo;
}

int XFreeFont(Display* display, XFontStruct* fontStruct)
{
    GrDestroyFont(fontStruct->fid);
    free(fontStruct);
    return 1;
}

int XQueryColor(Display* display, Colormap cmap, XColor* color)
{
    /* cmap is a GR_PALETTE */
    if (color->pixel < cmap->count)
    {
        color->red = cmap->palette[color->pixel].r;
        color->green = cmap->palette[color->pixel].g;
        color->blue = cmap->palette[color->pixel].b;
        return 1;
    }
    else
        return 0;
}

int XConfigureWindow(Display* display, Window w, int mask, XWindowChanges* changes)
{
    if ((mask & CWX) && (mask & CWY))
        GrMoveWindow(w, changes->x, changes->y);
    if ((mask & CWWidth) && (mask & CWHeight))
        GrResizeWindow(w, changes->width, changes->height);
    if (mask & CWBorderWidth)
    {
        /* TODO */
    }
    if (mask & CWSibling)
    {
        /* TODO */
    }
    if (mask & CWStackMode)
    {
        /* TODO */
    }
    return 1;
}

int XTranslateCoordinates(Display* display, Window srcWindow, Window destWindow, int srcX, int srcY, int* destX, int* destY, Window* childReturn)
{
    int offx = 0;
    int offy = 0;

    Window w = srcWindow;
    while (w != GR_ROOT_WINDOW_ID)
    {
        GR_WINDOW_INFO info;
        GrGetWindowInfo(w, & info);
        w = info.parent;

        offx += info.x ;
        offy += info.y ;
    }

    w = destWindow;

    while (w != GR_ROOT_WINDOW_ID)
    {
        GR_WINDOW_INFO info;
        GrGetWindowInfo(w, & info);
        w = info.parent;

        offx -= info.x ;
        offy -= info.y ;
    }

    *destX = srcX + offx;
    *destY = srcY + offy;

    if (childReturn)
        *childReturn = 0;

    return 1;
}

/* Should not really be necessary but in no-optimize mode
 * gcc complains that wxNoop is not found if wxNoop is inline.
 */

void wxNoop()
{
}

#endif
  /* wxUSE_NANOX */
Commit	Line	Data
	1	/*
	2	* nanox.c
	3	*
	4	* Replacements for some comomon Xlib functions
	5	* Licence: The wxWidgets licence
	6	*/
	7
	8	#include "wx/setup.h"
	9
	10	#if wxUSE_NANOX
	11
	12	#include <ctype.h>
	13	#include <malloc.h>
	14	#include <string.h>
	15	#include <stdio.h>
	16	#include "wx/defs.h"
	17	#include "wx/x11/nanox/X11/Xlib.h"
	18
	19	/* Expands to some compatibility functions (see XtoNX.h) */
	20
	21	STATIC_FUNCTIONS
	22
	23	static GR_PALETTE* s_globalColormap = 0;
	24
	25	Colormap DefaultColormapOfScreen(Screen* screen)
	26	{
	27	if (!s_globalColormap)
	28	{
	29	s_globalColormap = (GR_PALETTE*) malloc(sizeof(GR_PALETTE));
	30
	31	GrGetSystemPalette(s_globalColormap);
	32	}
	33
	34	return s_globalColormap;
	35	}
	36
	37	int XSetGraphicsExposures( Display* display, GC gc, Bool graphics_exposures)
	38	{
	39	return Success ;
	40	}
	41
	42	int XWarpPointer( Display* display, Window srcW, Window destW,
	43	int srcX, int srcY,
	44	unsigned int srcWidth,
	45	unsigned int srcHeight,
	46	int destX, int destY)
	47	{
	48	GrMoveCursor(destX, destY);
	49	return Success;
	50	}
	51
	52	int XSetInputFocus(Display* display, Window focus, int revert_to, Time time)
	53	{
	54	GrSetFocus(focus);
	55	return Success;
	56	}
	57
	58	int XGetInputFocus(Display* display, Window* focus_return, int* revert_to_return)
	59	{
	60	* focus_return = GrGetFocus();
	61	* revert_to_return = 0;
	62	return Success;
	63	}
	64
	65	int XGrabPointer(Display* display, Window grab_window,
	66	Bool owner_events, unsigned int event_mask,
	67	int pointer_mode, int keyboard_mode,
	68	Window confine_to, Cursor cursor, Time time)
	69	{
	70	/* According to comments in srvevent.c in Nano-X, the pointer
	71	* is implicitly grabbed when a mouse button is down.
	72	* We may be able to simulate this further in the event loop.
	73	*/
	74	return Success;
	75	}
	76
	77	int XUngrabPointer(Display* display, Time time)
	78	{
	79	return Success;
	80	}
	81
	82	int XCopyArea(Display* display, Drawable src, Drawable dest, GC gc,
	83	int src_x, int src_y, unsigned int width, unsigned int height,
	84	int dest_x, int dest_y)
	85	{
	86	GrCopyArea(dest, gc, dest_x, dest_y,
	87	width, height, src,
	88	src_x, src_y, 0);
	89	return Success;
	90	}
	91
	92	int XCopyPlane(Display* display, Drawable src, Drawable dest, GC gc,
	93	int src_x, int src_y, unsigned int width, unsigned int height,
	94	int dest_x, int dest_y, unsigned long plane)
	95	{
	96	GrCopyArea(dest, gc, dest_x, dest_y,
	97	width, height, src,
	98	src_x, src_y, 0);
	99	return Success;
	100	}
	101
	102	#if 0
	103	typedef struct {
	104	GR_WINDOW_ID wid; /* window id (or 0 if no such window) */
	105	GR_WINDOW_ID parent; /* parent window id */
	106	GR_WINDOW_ID child; /* first child window id (or 0) */
	107	GR_WINDOW_ID sibling; /* next sibling window id (or 0) */
	108	GR_BOOL inputonly; /* TRUE if window is input only */
	109	GR_BOOL mapped; /* TRUE if window is mapped */
	110	GR_COUNT unmapcount; /* reasons why window is unmapped */
	111	GR_COORD x; /* absolute x position of window */
	112	GR_COORD y; /* absolute y position of window */
	113	GR_SIZE width; /* width of window */
	114	GR_SIZE height; /* height of window */
	115	GR_SIZE bordersize; /* size of border */
	116	GR_COLOR bordercolor; /* color of border */
	117	GR_COLOR background; /* background color */
	118	GR_EVENT_MASK eventmask; /* current event mask for this client */
	119	GR_WM_PROPS props; /* window properties */
	120	GR_CURSOR_ID cursor; /* cursor id*/
	121	unsigned long processid; /* process id of owner*/
	122	} GR_WINDOW_INFO;
	123
	124	typedef struct {
	125	int x, y; /* location of window */
	126	int width, height; /* width and height of window */
	127	int border_width; /* border width of window */
	128	int depth; /* depth of window */
	129	Visual visual; / the associated visual structure */
	130	Window root; /* root of screen containing window */
	131	int class; /* InputOutput, InputOnly*/
	132	int bit_gravity; /* one of the bit gravity values */
	133	int win_gravity; /* one of the window gravity values */
	134	int backing_store; /* NotUseful, WhenMapped, Always */
	135	unsigned long backing_planes;/* planes to be preserved if possible */
	136	unsigned long backing_pixel;/* value to be used when restoring planes */
	137	Bool save_under; /* boolean, should bits under be saved? */
	138	Colormap colormap; /* color map to be associated with window */
	139	Bool map_installed; /* boolean, is color map currently installed*/
	140	int map_state; /* IsUnmapped, IsUnviewable, IsViewable */
	141	long all_event_masks; /* set of events all people have interest in*/
	142	long your_event_mask; /* my event mask */
	143	long do_not_propagate_mask;/* set of events that should not propagate */
	144	Bool override_redirect; /* boolean value for override-redirect */
	145	Screen screen; / back pointer to correct screen */
	146	} XWindowAttributes;
	147
	148	#endif
	149
	150
	151	Status XGetWindowAttributes(Display* display, Window w,
	152	XWindowAttributes* window_attributes)
	153	{
	154	GR_WINDOW_INFO info;
	155	Window parent = 0;
	156	GrFlush();
	157	GrGetWindowInfo(w, & info);
	158
	159	window_attributes->x = info.x;
	160	window_attributes->y = info.y;
	161	window_attributes->width = info.width;
	162	window_attributes->height = info.height;
	163	window_attributes->border_width = info.bordersize;
	164	window_attributes->depth = 0;
	165	window_attributes->visual = NULL;
	166	window_attributes->root = 0;
	167	window_attributes->_class = info.inputonly ? InputOnly : InputOutput ;
	168	window_attributes->bit_gravity = 0;
	169	window_attributes->win_gravity = 0;
	170	window_attributes->backing_store = 0;
	171	window_attributes->backing_planes = 0;
	172	window_attributes->backing_pixel = 0;
	173	window_attributes->save_under = FALSE;
	174	window_attributes->colormap = DefaultColormapOfScreen(0);
	175	window_attributes->map_installed = FALSE;
	176	window_attributes->map_state = info.mapped ? IsViewable : IsUnmapped ;
	177	window_attributes->all_event_masks = 0;
	178	window_attributes->do_not_propagate_mask = 0;
	179	window_attributes->override_redirect = FALSE;
	180	window_attributes->screen = NULL;
	181
	182	/* We need to check if any parents are unmapped,
	183	* or we will report a window as mapped when it is not.
	184	*/
	185	parent = info.parent;
	186	while (parent)
	187	{
	188	GrGetWindowInfo(parent, & info);
	189	if (info.mapped == 0)
	190	window_attributes->map_state = IsUnmapped;
	191
	192	parent = info.parent;
	193	}
	194
	195	return 1;
	196	}
	197
	198	static XErrorHandler* g_ErrorHandler = NULL;
	199
	200	void DefaultNanoXErrorHandler(GR_EVENT_ERROR* ep)
	201	{
	202	if (g_ErrorHandler)
	203	{
	204	XErrorEvent errEvent;
	205	errEvent.type = ep->type;
	206	errEvent.display = NULL;
	207	errEvent.resourceid = ep->id;
	208	errEvent.serial = 0;
	209	errEvent.error_code = ep->code;
	210	errEvent.request_code = 0;
	211	errEvent.minor_code = 0;
	212	(*g_ErrorHandler)(NULL, & errEvent);
	213	}
	214	}
	215
	216	XErrorHandler XSetErrorHandler (XErrorHandler handler)
	217	{
	218	XErrorHandler oldHandler = g_ErrorHandler;
	219	g_ErrorHandler = handler;
	220	GrSetErrorHandler(DefaultNanoXErrorHandler);
	221	return oldHandler;
	222	}
	223
	224	static Screen s_screen;
	225	Screen XScreenOfDisplay(Display display,
	226	int screen_number)
	227	{
	228	/* TODO: fill in the members. See Xlib.h */
	229	return & s_screen;
	230	}
	231
	232	int DisplayWidth(Display* display, int screen)
	233	{
	234	return _display.display_width;
	235	}
	236
	237	int DisplayHeight(Display* display, int screen)
	238	{
	239	return _display.display_height;
	240	}
	241
	242	int DefaultDepth(Display* display, int screen)
	243	{
	244	return _display.display_bpp;
	245	}
	246
	247	int XAllocColor(Display* display, Colormap cmap,
	248	XColor* color)
	249	{
	250	GR_PIXELVAL pixel;
	251	GrFindColor(GR_RGB(color->red, color->green, color->blue), & pixel);
	252	color->pixel = pixel;
	253	return 1;
	254	}
	255
	256	typedef struct {
	257	const char* name;
	258	unsigned int red;
	259	unsigned int green;
	260	unsigned int blue;
	261	} _wxColourEntry;
	262
	263	static _wxColourEntry _wxColourDatabase[] =
	264	{
	265	{ "WHITE", 255, 255, 255 },
	266	{ "BLACK", 0, 0, 0 },
	267	{ "RED", 255, 0, 0 },
	268	{ "GREEN", 0, 255, 0 },
	269	{ "BLUE", 0, 255, 255 },
	270	{ "GREY", 128, 128, 128 },
	271	{ "GRAY", 128, 128, 128 },
	272	{ "LIGHT GREY", 192, 192, 192 },
	273	{ "LIGHT GRAY", 192, 192, 192 },
	274	{ "DARK GREY", 32, 32, 32 },
	275	{ "DARK GRAY", 32, 32, 32 },
	276	{ "CYAN", 0, 255, 255 },
	277	{ "MAGENTA", 255, 255, 0 },
	278
	279	/* TODO: the rest */
	280	{ NULL, 0, 0, 0 }
	281	};
	282
	283	int XParseColor(Display* display, Colormap cmap,
	284	const char* cname, XColor* color)
	285	{
	286	int i = 0;
	287	for (;;)
	288	{
	289	if (!_wxColourDatabase[i].name)
	290	break;
	291	else
	292	{
	293	if (strcmp(cname, _wxColourDatabase[i].name) == 0)
	294	{
	295	color->red = _wxColourDatabase[i].red;
	296	color->green = _wxColourDatabase[i].green;
	297	color->blue = _wxColourDatabase[i].blue;
	298
	299	return 1;
	300	}
	301	i ++;
	302	}
	303	}
	304
	305	/* Not found: use black */
	306	color->red = 0;
	307	color->green = 0;
	308	color->blue = 0;
	309
	310	return 0;
	311	}
	312
	313	int XDrawLine(Display* display, Window win, GC gc,
	314	int x1, int y1, int x2, int y2)
	315	{
	316	GR_POINT points[2];
	317	points[0].x = x1;
	318	points[0].y = y1;
	319	points[1].x = x2;
	320	points[1].y = y2;
	321
	322	GrDrawLines(win, gc, points, 2);
	323	return 1;
	324	}
	325
	326	int XTextExtents( XFontStruct* font, char* s, int len, int* direction,
	327	int* ascent, int* descent2, XCharStruct* overall)
	328	{
	329	GR_SIZE retwidth, retheight, retbase;
	330	GR_GC_ID gc = GrNewGC();
	331
	332	*ascent = font->info.baseline;
	333	direction = 1; / ? */
	334	descent2 = 0; / ? */
	335
	336	GrSetGCFont(gc, font->fid);
	337
	338	/* TODO need to set the relevant flags for the character set.
	339	* A good trick might be to pass a wxString instead of char*
	340	* to this function.
	341	*/
	342
	343	GrGetGCTextSize(gc, s, len, GR_TFASCII, & retwidth,
	344	& retheight, & retbase);
	345	if (overall)
	346	{
	347	overall->width = retwidth;
	348	overall->lbearing = 0;
	349	overall->rbearing = 0;
	350	overall->ascent = *ascent;
	351	overall->descent = 0;
	352	overall->attributes = 0;
	353	}
	354
	355	GrDestroyGC(gc);
	356
	357	return 1;
	358	}
	359
	360	XFontStruct* XLoadQueryFont(Display* display, const char* fontSpec)
	361	{
	362	/* TODO: map fontSpec to something sensible for Nano-X */
	363	char *fontName = NULL;
	364	XFontStruct* fontInfo = malloc(sizeof(XFontStruct));
	365	fontInfo->fid = GrCreateFont(fontName, 0, 0);
	366	GrGetFontInfo(fontInfo->fid, & fontInfo->info);
	367	printf("Warning: should not call XLoadQueryFont since font spec is not used in Nano-X.\n");
	368	return fontInfo;
	369	}
	370
	371	int XFreeFont(Display* display, XFontStruct* fontStruct)
	372	{
	373	GrDestroyFont(fontStruct->fid);
	374	free(fontStruct);
	375	return 1;
	376	}
	377
	378	int XQueryColor(Display* display, Colormap cmap, XColor* color)
	379	{
	380	/* cmap is a GR_PALETTE */
	381	if (color->pixel < cmap->count)
	382	{
	383	color->red = cmap->palette[color->pixel].r;
	384	color->green = cmap->palette[color->pixel].g;
	385	color->blue = cmap->palette[color->pixel].b;
	386	return 1;
	387	}
	388	else
	389	return 0;
	390	}
	391
	392	int XConfigureWindow(Display* display, Window w, int mask, XWindowChanges* changes)
	393	{
	394	if ((mask & CWX) && (mask & CWY))
	395	GrMoveWindow(w, changes->x, changes->y);
	396	if ((mask & CWWidth) && (mask & CWHeight))
	397	GrResizeWindow(w, changes->width, changes->height);
	398	if (mask & CWBorderWidth)
	399	{
	400	/* TODO */
	401	}
	402	if (mask & CWSibling)
	403	{
	404	/* TODO */
	405	}
	406	if (mask & CWStackMode)
	407	{
	408	/* TODO */
	409	}
	410	return 1;
	411	}
	412
	413	int XTranslateCoordinates(Display* display, Window srcWindow, Window destWindow, int srcX, int srcY, int* destX, int* destY, Window* childReturn)
	414	{
	415	int offx = 0;
	416	int offy = 0;
	417
	418	Window w = srcWindow;
	419	while (w != GR_ROOT_WINDOW_ID)
	420	{
	421	GR_WINDOW_INFO info;
	422	GrGetWindowInfo(w, & info);
	423	w = info.parent;
	424
	425	offx += info.x ;
	426	offy += info.y ;
	427	}
	428
	429	w = destWindow;
	430
	431	while (w != GR_ROOT_WINDOW_ID)
	432	{
	433	GR_WINDOW_INFO info;
	434	GrGetWindowInfo(w, & info);
	435	w = info.parent;
	436
	437	offx -= info.x ;
	438	offy -= info.y ;
	439	}
	440
	441	*destX = srcX + offx;
	442	*destY = srcY + offy;
	443
	444	if (childReturn)
	445	*childReturn = 0;
	446
	447	return 1;
	448	}
	449
	450	/* Should not really be necessary but in no-optimize mode
	451	* gcc complains that wxNoop is not found if wxNoop is inline.
	452	*/
	453
	454	void wxNoop()
	455	{
	456	}
	457
	458	#endif
	459	/* wxUSE_NANOX */