/* $XConsortium: PsLine.c /main/3 1996/12/30 14:57:39 kaleb $ */
/*
 * (c) Copyright 1996 Hewlett-Packard Company
 * (c) Copyright 1996 International Business Machines Corp.
 * (c) Copyright 1996 Sun Microsystems, Inc.
 * (c) Copyright 1996 Novell, Inc.
 * (c) Copyright 1996 Digital Equipment Corp.
 * (c) Copyright 1996 Fujitsu Limited
 * (c) Copyright 1996 Hitachi, Ltd.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject
 * to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * Except as contained in this notice, the names of the copyright holders
 * shall not be used in advertising or otherwise to promote the sale, use
 * or other dealings in this Software without prior written authorization
 * from said copyright holders.
 */

/*******************************************************************
**
**    *********************************************************
**    *
**    *  File:		PsLine.c
**    *
**    *  Contents:	Line drawing routines for the PS driver
**    *
**    *  Created By:	Roger Helmendach (Liberty Systems)
**    *
**    *  Copyright:	Copyright 1996 X Consortium, Inc.
**    *
**    *********************************************************
** 
********************************************************************/
/* $XFree86: xc/programs/Xserver/Xprint/ps/PsLine.c,v 1.3 1996/12/31 07:06:29 dawes Exp $ */

#include "Ps.h"
#include "gcstruct.h"
#include "windowstr.h"

void
PsPolyLine(
  DrawablePtr  pDrawable,
  GCPtr        pGC,
  int          mode,
  int          nPoints,
  xPoint      *pPoints)
{
  if( pDrawable->type==DRAWABLE_PIXMAP )
  {
    DisplayElmPtr   elm;
    PixmapPtr       pix  = (PixmapPtr)pDrawable;
    PsPixmapPrivPtr priv = (PsPixmapPrivPtr)pix->devPrivate.ptr;
    DisplayListPtr  disp;
    GCPtr           gc;

    if ((gc = PsCreateAndCopyGC(pDrawable, pGC)) == NULL) return;

    disp = PsGetFreeDisplayBlock(priv);

    elm  = &disp->elms[disp->nelms];
    elm->type = PolyLineCmd;
    elm->gc   = gc;
    elm->c.polyPts.mode    = mode;
    elm->c.polyPts.nPoints = nPoints;
    elm->c.polyPts.pPoints = (xPoint *)xalloc(nPoints*sizeof(xPoint));
    memcpy(elm->c.polyPts.pPoints, pPoints, nPoints*sizeof(xPoint));
    disp->nelms += 1;
  }
  else
  {
    int         i;
    PsOutPtr    psOut;
    PsPointPtr  pts;
    ColormapPtr cMap;

    if( PsUpdateDrawableGC(pGC, pDrawable, &psOut, &cMap)==FALSE ) return;
    PsOut_Offset(psOut, pDrawable->x, pDrawable->y);
    PsOut_Color(psOut, PsGetPixelColor(cMap, pGC->fgPixel));
    PsLineAttrs(psOut, pGC, cMap);
    pts = (PsPointPtr)xalloc(sizeof(PsPointRec)*nPoints);
    if( mode==CoordModeOrigin )
    {
      for( i=0 ; i<nPoints ; i++ )
        { pts[i].x = pPoints[i].x; pts[i].y = pPoints[i].y; }
    }
    else
    {
      pts[0].x = pPoints[0].x; pts[0].y = pPoints[0].y;
      for( i=1 ; i<nPoints ;  i++ )
      {
        pts[i].x = pts[i-1].x+pPoints[i].x;
        pts[i].y = pts[i-1].y+pPoints[i].y;
      }
    }
    PsOut_Lines(psOut, nPoints, pts);
    xfree(pts);
  }
}

void
PsPolySegment(
  DrawablePtr  pDrawable,
  GCPtr        pGC,
  int          nSegments,
  xSegment    *pSegments)
{
  if( pDrawable->type==DRAWABLE_PIXMAP )
  {
    DisplayElmPtr   elm;
    PixmapPtr       pix  = (PixmapPtr)pDrawable;
    PsPixmapPrivPtr priv = (PsPixmapPrivPtr)pix->devPrivate.ptr;
    DisplayListPtr  disp;
    GCPtr           gc;

    if ((gc = PsCreateAndCopyGC(pDrawable, pGC)) == NULL) return;

    disp = PsGetFreeDisplayBlock(priv);

    elm  = &disp->elms[disp->nelms];
    elm->type = PolySegmentCmd;
    elm->gc   = gc;
    elm->c.segments.nSegments = nSegments;
    elm->c.segments.pSegments = (xSegment *)xalloc(nSegments*sizeof(xSegment));
    memcpy(elm->c.segments.pSegments, pSegments, nSegments*sizeof(xSegment));
    disp->nelms += 1;
  }
  else
  {
    int         i;
    PsOutPtr    psOut;
    PsPointRec  pts[2];
    ColormapPtr cMap;

    if( PsUpdateDrawableGC(pGC, pDrawable, &psOut, &cMap)==FALSE ) return;
    PsOut_Offset(psOut, pDrawable->x, pDrawable->y);
    PsOut_Color(psOut, PsGetPixelColor(cMap, pGC->fgPixel));
    PsLineAttrs(psOut, pGC, cMap);
    for( i=0 ; i<nSegments ; i++ )
    {
      pts[0].x = pSegments[i].x1;
      pts[0].y = pSegments[i].y1;
      pts[1].x = pSegments[i].x2;
      pts[1].y = pSegments[i].y2;
      PsOut_Lines(psOut, 2, pts);
    }
  }
}