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/*
* Code and supporting documentation (c) Copyright 1990 1991 Tektronix, Inc.
* All Rights Reserved
*
* This file is a component of an X Window System-specific implementation
* of Xcms based on the TekColor Color Management System. Permission is
* hereby granted to use, copy, modify, sell, and otherwise distribute this
* software and its documentation for any purpose and without fee, provided
* that this copyright, permission, and disclaimer notice is reproduced in
* all copies of this software and in supporting documentation. TekColor
* is a trademark of Tektronix, Inc.
*
* Tektronix makes no representation about the suitability of this software
* for any purpose. It is provided "as is" and with all faults.
*
* TEKTRONIX DISCLAIMS ALL WARRANTIES APPLICABLE TO THIS SOFTWARE,
* INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE. IN NO EVENT SHALL TEKTRONIX BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR THE PERFORMANCE OF THIS SOFTWARE.
*
*
* NAME
* XcmsAlNCol.c
*
* DESCRIPTION
* Source for XcmsAllocNamedColor
*
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include "Xlibint.h"
#include "Xcmsint.h"
#include "Cv.h"
/*
* NAME
* XcmsAllocNamedColor -
*
* SYNOPSIS
*/
Status
XcmsAllocNamedColor (
Display *dpy,
Colormap cmap,
_Xconst char *colorname,
XcmsColor *pColor_scrn_return,
XcmsColor *pColor_exact_return,
XcmsColorFormat result_format)
/*
* DESCRIPTION
* Finds the color specification associated with the color
* name in the Device-Independent Color Name Database, then
* converts that color specification to an RGB format. This
* RGB value is then used in a call to XAllocColor to allocate
* a read-only color cell.
*
* RETURNS
* 0 if failed to parse string or find any entry in the database.
* 1 if succeeded in converting color name to XcmsColor.
* 2 if succeeded in converting color name to another color name.
*
*/
{
long nbytes;
xAllocNamedColorReply rep;
xAllocNamedColorReq *req;
XColor hard_def;
XColor exact_def;
Status retval1 = 1;
Status retval2 = XcmsSuccess;
XcmsColor tmpColor;
XColor XColor_in_out;
XcmsCCC ccc;
/*
* 0. Check for invalid arguments.
*/
if (dpy == NULL || colorname[0] == '\0' || pColor_scrn_return == 0
|| pColor_exact_return == NULL) {
return(XcmsFailure);
}
if ((ccc = XcmsCCCOfColormap(dpy, cmap)) == (XcmsCCC)NULL) {
return(XcmsFailure);
}
/*
* 1. Convert string to a XcmsColor using Xcms and i18n mechanism
*/
if ((retval1 = _XcmsResolveColorString(ccc, &colorname,
&tmpColor, result_format)) == XcmsFailure) {
return(XcmsFailure);
}
if (retval1 == _XCMS_NEWNAME) {
goto PassToServer;
}
memcpy((char *)pColor_exact_return, (char *)&tmpColor, sizeof(XcmsColor));
/*
* 2. Convert tmpColor to RGB
* Assume pColor_exact_return is now adjusted to Client White Point
*/
if ((retval2 = XcmsConvertColors(ccc, &tmpColor,
1, XcmsRGBFormat, (Bool *) NULL)) == XcmsFailure) {
return(XcmsFailure);
}
/*
* 3. Convert to XColor and call XAllocColor
*/
_XcmsRGB_to_XColor(&tmpColor, &XColor_in_out, 1);
if (XAllocColor(ccc->dpy, cmap, &XColor_in_out) == 0) {
return(XcmsFailure);
}
/*
* 4. pColor_scrn_return
*
* Now convert to the target format.
* We can ignore the return value because we're already in a
* device-dependent format.
*/
_XColor_to_XcmsRGB(ccc, &XColor_in_out, pColor_scrn_return, 1);
if (result_format != XcmsRGBFormat) {
if (result_format == XcmsUndefinedFormat) {
result_format = pColor_exact_return->format;
}
if (XcmsConvertColors(ccc, pColor_scrn_return, 1, result_format,
(Bool *) NULL) == XcmsFailure) {
return(XcmsFailure);
}
}
return(retval1 > retval2 ? retval1 : retval2);
PassToServer:
/*
* All previous methods failed, so lets pass it to the server
* for parsing.
*/
dpy = ccc->dpy;
LockDisplay(dpy);
GetReq(AllocNamedColor, req);
req->cmap = cmap;
nbytes = req->nbytes = (CARD16) strlen(colorname);
req->length += (nbytes + 3) >> 2; /* round up to mult of 4 */
_XSend(dpy, colorname, nbytes);
/* _XSend is more efficient that Data, since _XReply follows */
if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
UnlockDisplay(dpy);
SyncHandle();
return (0);
}
exact_def.red = rep.exactRed;
exact_def.green = rep.exactGreen;
exact_def.blue = rep.exactBlue;
hard_def.red = rep.screenRed;
hard_def.green = rep.screenGreen;
hard_def.blue = rep.screenBlue;
exact_def.pixel = hard_def.pixel = rep.pixel;
UnlockDisplay(dpy);
SyncHandle();
/*
* Now convert to the target format.
*/
_XColor_to_XcmsRGB(ccc, &exact_def, pColor_exact_return, 1);
_XColor_to_XcmsRGB(ccc, &hard_def, pColor_scrn_return, 1);
if (result_format != XcmsRGBFormat
&& result_format != XcmsUndefinedFormat) {
if (XcmsConvertColors(ccc, pColor_exact_return, 1, result_format,
(Bool *) NULL) == XcmsFailure) {
return(XcmsFailure);
}
if (XcmsConvertColors(ccc, pColor_scrn_return, 1, result_format,
(Bool *) NULL) == XcmsFailure) {
return(XcmsFailure);
}
}
return(XcmsSuccess);
}
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