painting.h

/************************************************************************
*
* Copyright 2010 Jakob Leben (jakob.leben@gmail.com)
*
* This file is part of SuperCollider Qt GUI.
*
* This program 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.
*
* This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*
************************************************************************/

#ifndef QC_PAINTING_H
#define QC_PAINTING_H

class QPainter;
class QWidget;
class QObject;

namespace QtCollider {
  // WARNING these can be called only from Qt thread (no locking needed):
  void announcePainting();
  bool paintingAnnounced();

  // WARNING language must be locked to call these:
  bool beginPainting( QPainter *, QObject* obj = 0 );
  void endPainting();
  bool isPaintingObject( QObject* obj );

  QPainter * globalPainter();
}

#endif