#include "copyright.h"

/* $XConsortium: XCopyGC.c,v 11.12 88/09/06 16:05:27 jim Exp $ */
/* Copyright    Massachusetts Institute of Technology    1986	 */

#include "Xlibint.h"

XCopyGC (dpy, srcGC, mask, destGC)
  register Display *dpy;
  unsigned long mask;		/* which ones to set initially */
  GC srcGC, destGC;
{
  register XGCValues *destgv = &destGC->values, *srcgv = &srcGC->values;
  register xCopyGCReq *req;
  register _XExtension *ext;

  LockDisplay (dpy);

  mask &= (1L << (GCLastBit + 1)) - 1;

  /*
   * if some of the source values to be copied are "dirty", flush them out
   * before sending the CopyGC request.
   */
  if (srcGC->dirty & mask)
    _XFlushGCCache (dpy, srcGC);

  /* mark the copied values "not dirty" in the destination. */
  destGC->dirty &= ~mask;

  GetReq (CopyGC, req);
  req->srcGC = srcGC->gid;
  req->dstGC = destGC->gid;
  req->mask = mask;

  if (mask & GCFunction)
    destgv->function = srcgv->function;

  if (mask & GCPlaneMask)
    destgv->plane_mask = srcgv->plane_mask;

  if (mask & GCForeground)
    destgv->foreground = srcgv->foreground;

  if (mask & GCBackground)
    destgv->background = srcgv->background;

  if (mask & GCLineWidth)
    destgv->line_width = srcgv->line_width;

  if (mask & GCLineStyle)
    destgv->line_style = srcgv->line_style;

  if (mask & GCCapStyle)
    destgv->cap_style = srcgv->cap_style;

  if (mask & GCJoinStyle)
    destgv->join_style = srcgv->join_style;

  if (mask & GCFillStyle)
    destgv->fill_style = srcgv->fill_style;

  if (mask & GCFillRule)
    destgv->fill_rule = srcgv->fill_rule;

  if (mask & GCArcMode)
    destgv->arc_mode = srcgv->arc_mode;

  if (mask & GCTile)
    destgv->tile = srcgv->tile;

  if (mask & GCStipple)
    destgv->stipple = srcgv->stipple;

  if (mask & GCTileStipXOrigin)
    destgv->ts_x_origin = srcgv->ts_x_origin;

  if (mask & GCTileStipYOrigin)
    destgv->ts_y_origin = srcgv->ts_y_origin;

  if (mask & GCFont)
    destgv->font = srcgv->font;

  if (mask & GCSubwindowMode)
    destgv->subwindow_mode = srcgv->subwindow_mode;

  if (mask & GCGraphicsExposures)
    destgv->graphics_exposures = srcgv->graphics_exposures;

  if (mask & GCClipXOrigin)
    destgv->clip_x_origin = srcgv->clip_x_origin;

  if (mask & GCClipYOrigin)
    destgv->clip_y_origin = srcgv->clip_y_origin;

  if (mask & GCClipMask) {
    destGC->rects = srcGC->rects;
    destgv->clip_mask = srcgv->clip_mask;
  }

  if (mask & GCDashOffset)
    destgv->dash_offset = srcgv->dash_offset;

  if (mask & GCDashList) {
    destGC->dashes = srcGC->dashes;
    destgv->dashes = srcgv->dashes;
  }
  ext = dpy->ext_procs;
  while (ext) {			/* call out to any extensions interested */
    if (ext->copy_GC != NULL)
      (*ext->copy_GC) (dpy, destGC, &ext->codes);
    ext = ext->next;
  }
  UnlockDisplay (dpy);
  SyncHandle ();
}