block.cc

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//
// Copyright (c) 1999-2004 California Institute of Technology
// Copyright (c) 2004-2007 University of Southern California
// Rob Peters <rjpeters at usc dot edu>
//
// created: Sat Jun 26 12:29:34 1999
// commit: $Id: block.cc 10065 2007-04-12 05:54:56Z rjpeters $
// $HeadURL: file:///lab/rjpeters/svnrepo/code/trunk/groovx/src/visx/block.cc $
//
// --------------------------------------------------------------------
//
// This file is part of GroovX.
//   [http://ilab.usc.edu/rjpeters/groovx/]
//
// GroovX is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// GroovX 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with GroovX; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//

#ifndef GROOVX_VISX_BLOCK_CC_UTC20050626084016_DEFINED
#define GROOVX_VISX_BLOCK_CC_UTC20050626084016_DEFINED

#include "visx/block.h"

#include "io/ioproxy.h"
#include "io/reader.h"
#include "io/readutils.h"
#include "io/writer.h"
#include "io/writeutils.h"

#include "nub/log.h"
#include "nub/ref.h"

#include "rutz/fstring.h"

#define GVX_DYNAMIC_TRACE_EXPR Block::tracer.status()
#include "rutz/trace.h"
#include "rutz/debug.h"
GVX_DBG_REGISTER

//
// File scope data
//

rutz::tracer Block::tracer;

namespace
{
  io::version_id BLOCK_SVID = 3;
}

//
// Block creators
//

Block* Block::make()
{
GVX_TRACE("Block::make");
  return new Block;
}

Block::Block() :
  itsParent( 0 )
{
GVX_TRACE("Block::Block");
}

Block::~Block() throw()
{}

io::version_id Block::class_version_id() const
{
GVX_TRACE("Block::class_version_id");
  return BLOCK_SVID;
}

void Block::read_from(io::reader& reader)
{
GVX_TRACE("Block::read_from");

  reader.ensure_version_id("Block", 3,
                           "Try cvs tag xml_conversion_20040526",
                           SRC_POS);

  reader.read_base_class("ElementContainer",
                       io::make_proxy<ElementContainer>(this));
}

void Block::write_to(io::writer& writer) const
{
GVX_TRACE("Block::write_to");

  writer.ensure_output_version_id("Block", BLOCK_SVID, 3,
                              "Try groovx0.8a7", SRC_POS);

  writer.write_base_class("ElementContainer",
                        io::make_const_proxy<ElementContainer>(this));
}

//
// Block's Element interface
//

const nub::soft_ref<Toglet>& Block::getWidget() const
{
GVX_TRACE("Block::getWidget");
  GVX_PRECONDITION( itsParent != 0 );
  return itsParent->getWidget();
}

void Block::vxRun(Element& e)
{
GVX_TRACE("Block::vxRun");

  if ( isComplete() ) return;

  GVX_PRECONDITION( &e != 0 );

  nub::log( vxInfo() );

  itsParent = &e;

  currentElement()->vxRun(*this);
}

void Block::vxEndTrialHook()
{
GVX_TRACE("Block::vxEndTrialHook");

  if (itsParent != 0)
    itsParent->vxEndTrialHook();
}

void Block::vxAllChildrenFinished()
{
GVX_TRACE("Block::vxAllChildrenFinished");

  // Release our current parent, then pass control onto it.
  Element* p = itsParent;
  itsParent = 0;
  GVX_ASSERT( p != 0 );
  p->vxReturn(CHILD_OK);
}

static const char __attribute__((used)) vcid_groovx_visx_block_cc_utc20050626084016[] = "$Id: block.cc 10065 2007-04-12 05:54:56Z rjpeters $ $HeadURL: file:
#endif // !GROOVX_VISX_BLOCK_CC_UTC20050626084016_DEFINED

---

The software described here is Copyright (c) 1998-2005, Rob Peters.
This page was generated Wed Dec 3 06:49:41 2008 by Doxygen version 1.5.5.