IABSD.fr/xenocara/lib/libXp/src/XpPage.c

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• Author : matthieu
  Date : 2006-11-25 17:22:40
  Hash : 19d7c699
  Message : import from X.Org 7.2RC2

• lib/libXp/src/XpPage.c

• /* $Xorg: XpPage.c,v 1.4 2001/03/06 13:59:02 pookie Exp $ */
  /******************************************************************************
   ******************************************************************************
   **
   ** (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.
   **
   ******************************************************************************
   *****************************************************************************/
  /* $XFree86: xc/lib/Xp/XpPage.c,v 1.4 2001/12/19 21:28:44 dawes Exp $ */
  
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include <X11/extensions/Printstr.h>
  #include <X11/Xlibint.h>
  #include "XpExtUtil.h"
  
  
  typedef struct {
      int event_base_return;
      XPContext context;
  } _XpDiscardPageRec;
  
  static Bool _XpDiscardPage(Display *dpy, XEvent *event, XPointer arg)
  {
      _XpDiscardPageRec *disrec = (_XpDiscardPageRec *) arg;
  
      if (event->type != disrec->event_base_return + XPPrintNotify)
          return False;
  
      if (disrec->context != ((XPPrintEvent *) event)->context)
          return False;
  
      if (((XPPrintEvent *) event)->detail == XPEndPageNotify)  {
          return False;
      }
  
      return True;
  }
  
  
  void
  XpStartPage (
      Display  *dpy,
      Window   window
  )
  {
      xPrintStartPageReq *req;
      XExtDisplayInfo *info = (XExtDisplayInfo *) xp_find_display (dpy);
  
      XMapWindow(dpy, window);
      if (XpCheckExtInit(dpy, XP_INITIAL_RELEASE) == -1)
  	return; /* NoSuchExtension */
  
      LockDisplay (dpy);
  
      GetReq(PrintStartPage,req);
      req->reqType = info->codes->major_opcode;
      req->printReqType = X_PrintStartPage;
      req->window = window;
  
      UnlockDisplay (dpy);
      SyncHandle ();
  }
  
  
  void
  XpEndPage (
      Display  *dpy
  )
  {
      xPrintEndPageReq *req;
      XExtDisplayInfo *info = (XExtDisplayInfo *) xp_find_display (dpy);
  
      if (XpCheckExtInit(dpy, XP_INITIAL_RELEASE) == -1)
  	return; /* NoSuchExtension */
  
      LockDisplay (dpy);
  
      GetReq(PrintEndPage,req);
      req->reqType = info->codes->major_opcode;
      req->printReqType = X_PrintEndPage;
      req->cancel = False;
  
      UnlockDisplay (dpy);
      SyncHandle ();
  }
  
  
  void
  XpCancelPage (
      Display  *dpy,
      Bool     discard
  )
  {
      xPrintEndPageReq *req;
      XExtDisplayInfo *info = (XExtDisplayInfo *) xp_find_display (dpy);
  
      _XpDiscardPageRec disrec;
      XEvent event;
  
  
      if (XpCheckExtInit(dpy, XP_INITIAL_RELEASE) == -1)
  	return; /* NoSuchExtension */
  
      LockDisplay (dpy);
  
      GetReq(PrintEndPage,req);
      req->reqType = info->codes->major_opcode;
      req->printReqType = X_PrintEndPage;
      req->cancel = True;
  
      UnlockDisplay (dpy);
      SyncHandle ();
  
      if (discard) {
          /*
           * get context and effectively do a sync of events.
           */
          disrec.event_base_return = info->codes->first_event;
          disrec.context = XpGetContext(dpy);
  
          /*
           * discard page XPPrintNotify events.
           */
          while (XCheckIfEvent(dpy, &event, _XpDiscardPage, (XPointer) &disrec))
          {
              /*EMPTY*/
          }
      }
  }