/*
 *	PostScript driver Escape function
 *
 *	Copyright 1998  Huw D M Davies
 *
 * 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 2.1 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
 */
#include "windef.h"
#include "wingdi.h"
#include "wine/winuser16.h"
#include "psdrv.h"
#include "wine/debug.h"
#include "winspool.h"

WINE_DEFAULT_DEBUG_CHANNEL(psdrv);


/**********************************************************************
 *           ExtEscape  (WINEPS.@)
 */
INT PSDRV_ExtEscape( DC *dc, INT nEscape, INT cbInput, LPCVOID in_data,
                     INT cbOutput, LPVOID out_data )
{
    PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;

    switch(nEscape)
    {
    case QUERYESCSUPPORT:
        if(cbInput < sizeof(INT))
        {
	    WARN("cbInput < sizeof(INT) (=%d) for QUERYESCSUPPORT\n", cbInput);
	    return 0;
	} else {
	    UINT num = *(UINT *)in_data;
	    TRACE("QUERYESCSUPPORT for %d\n", num);

	    switch(num) {
	    case NEXTBAND:
	    case SETCOPYCOUNT:
	    case GETTECHNOLOGY:
	    case SETLINECAP:
	    case SETLINEJOIN:
	    case SETMITERLIMIT:
	    case SETCHARSET:
	    case EXT_DEVICE_CAPS:
	    case SET_BOUNDS:
            case EPSPRINTING:
            case PASSTHROUGH:
            case POSTSCRIPT_PASSTHROUGH:
	        return TRUE;

	    default:
	        return FALSE;
	    }
	}

    case NEXTBAND:
    {
        RECT *r = out_data;
	if(!physDev->job.banding) {
	    physDev->job.banding = TRUE;
            r->left   = 0;
            r->top    = 0;
            r->right  = physDev->horzRes;
            r->bottom = physDev->vertRes;
            TRACE("NEXTBAND returning %d,%d - %d,%d\n", r->left, r->top, r->right, r->bottom );
	    return 1;
	}
        r->left   = 0;
        r->top    = 0;
        r->right  = 0;
        r->bottom = 0;
	TRACE("NEXTBAND rect to 0,0 - 0,0\n" );
	physDev->job.banding = FALSE;
        return EndPage( dc->hSelf );
    }

    case SETCOPYCOUNT:
        {
            const INT *NumCopies = in_data;
            INT *ActualCopies = out_data;
            if(cbInput != sizeof(INT)) {
                WARN("cbInput != sizeof(INT) (=%d) for SETCOPYCOUNT\n", cbInput);
		return 0;
	    }
	    TRACE("SETCOPYCOUNT %d\n", *NumCopies);
	    *ActualCopies = 1;
	    return 1;
	}

    case GETTECHNOLOGY:
        {
	    LPSTR p = out_data;
	    strcpy(p, "PostScript");
	    *(p + strlen(p) + 1) = '\0'; /* 2 '\0's at end of string */
	    return 1;
	}

    case SETLINECAP:
        {
            INT newCap = *(INT *)in_data;
            if(cbInput != sizeof(INT)) {
                WARN("cbInput != sizeof(INT) (=%d) for SETLINECAP\n", cbInput);
		return 0;
            }
	    TRACE("SETLINECAP %d\n", newCap);
	    return 0;
	}

    case SETLINEJOIN:
        {
            INT newJoin = *(INT *)in_data;
            if(cbInput != sizeof(INT)) {
                WARN("cbInput != sizeof(INT) (=%d) for SETLINEJOIN\n", cbInput);
		return 0;
            }
	    TRACE("SETLINEJOIN %d\n", newJoin);
	    return 0;
	}

    case SETMITERLIMIT:
        {
            INT newLimit = *(INT *)in_data;
            if(cbInput != sizeof(INT)) {
                WARN("cbInput != sizeof(INT) (=%d) for SETMITERLIMIT\n", cbInput);
		return 0;
            }
	    TRACE("SETMITERLIMIT %d\n", newLimit);
	    return 0;
	}

    case SETCHARSET: 
      /* Undocumented escape used by winword6.
	 Switches between ANSI and a special charset.
	 If *lpInData == 1 we require that
	 0x91 is quoteleft
	 0x92 is quoteright
	 0x93 is quotedblleft
	 0x94 is quotedblright
	 0x95 is bullet
	 0x96 is endash
	 0x97 is emdash
	 0xa0 is non break space - yeah right.
	 
	 If *lpInData == 0 we get ANSI.
	 Since there's nothing else there, let's just make these the default
	 anyway and see what happens...
      */
        return 1;

    case EXT_DEVICE_CAPS:
        {
            UINT cap = *(UINT *)in_data;
            if(cbInput != sizeof(UINT)) {
                WARN("cbInput != sizeof(UINT) (=%d) for EXT_DEVICE_CAPS\n", cbInput);
		return 0;
            }
	    TRACE("EXT_DEVICE_CAPS %d\n", cap);
	    return 0;
	}

    case SET_BOUNDS:
        {
            const RECT *r = in_data;
            if(cbInput != sizeof(RECT)) {
                WARN("cbInput != sizeof(RECT) (=%d) for SET_BOUNDS\n", cbInput);
		return 0;
            }
	    TRACE("SET_BOUNDS (%d,%d) - (%d,%d)\n", r->left, r->top,
		  r->right, r->bottom);
	    return 0;
	}

    case EPSPRINTING:
	{
            UINT epsprint = *(UINT*)in_data;
	    /* FIXME: In this mode we do not need to send page intros and page
	     * ends according to the doc. But I just ignore that detail
	     * for now.
	     */
	    TRACE("EPS Printing support %sable.\n",epsprint?"en":"dis");
	    return 1;
        }
    case PASSTHROUGH:
    case POSTSCRIPT_PASSTHROUGH:
        {
            /* Write directly to spool file, bypassing normal PS driver
             * processing that is done along with writing PostScript code
             * to the spool.
	     * (Usually we have a WORD before the data counting the size, but
	     * cbInput is just this +2.)
             */
            return WriteSpool16(physDev->job.hJob,((char*)in_data)+2,cbInput-2);
        }

    case GETSETPRINTORIENT:
	{
	    /* If lpInData is present, it is a 20 byte structure, first 32
	     * bit LONG value is the orientation. if lpInData is NULL, it
	     * returns the current orientation.
	     */
	    FIXME("GETSETPRINTORIENT not implemented (data %p)!\n",in_data);
	    return 1;
	}
    default:
        FIXME("Unimplemented code 0x%x\n", nEscape);
	return 0;
    }
}

/************************************************************************
 *           PSDRV_StartPage
 */
INT PSDRV_StartPage( DC *dc )
{
    PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;

    if(!physDev->job.OutOfPage) {
        FIXME("Already started a page?\n");
	return 1;
    }
    physDev->job.PageNo++;
    if(!PSDRV_WriteNewPage( dc ))
        return 0;
    physDev->job.OutOfPage = FALSE;
    return 1;
}

	
/************************************************************************
 *           PSDRV_EndPage
 */
INT PSDRV_EndPage( DC *dc )
{
    PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;

    if(physDev->job.OutOfPage) {
        FIXME("Already ended a page?\n");
	return 1;
    }
    if(!PSDRV_WriteEndPage( dc ))
        return 0;
    physDev->job.OutOfPage = TRUE;
    return 1;
}


/************************************************************************
 *           PSDRV_StartDoc
 */
INT PSDRV_StartDoc( DC *dc, const DOCINFOA *doc )
{
    PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;

    if(physDev->job.hJob) {
        FIXME("hJob != 0. Now what?\n");
	return 0;
    }

    if(doc->lpszOutput) {
        HeapFree( PSDRV_Heap, 0, physDev->job.output );
	physDev->job.output = HeapAlloc( PSDRV_Heap, 0, strlen(doc->lpszOutput)+1 );
	strcpy( physDev->job.output, doc->lpszOutput );
    }
    physDev->job.hJob = OpenJob16(physDev->job.output,  doc->lpszDocName,
				  dc->hSelf);
    if(!physDev->job.hJob) {
        WARN("OpenJob failed\n");
	return 0;
    }
    physDev->job.banding = FALSE;
    physDev->job.OutOfPage = TRUE;
    physDev->job.PageNo = 0;
    if(!PSDRV_WriteHeader( dc, doc->lpszDocName ))
        return 0;

    return physDev->job.hJob;
}


/************************************************************************
 *           PSDRV_EndDoc
 */
INT PSDRV_EndDoc( DC *dc )
{
    PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;

    if(!physDev->job.hJob) {
        FIXME("hJob == 0. Now what?\n");
	return 0;
    }

    if(!physDev->job.OutOfPage) {
        WARN("Somebody forgot a EndPage\n");
	PSDRV_EndPage( dc );
    }
    if(!PSDRV_WriteFooter( dc ))
        return 0;

    if( CloseJob16( physDev->job.hJob ) == SP_ERROR ) {
        WARN("CloseJob error\n");
	return 0;
    }
    physDev->job.hJob = 0;
    return 1;
}