SciFigs::LayerPainterThread Class Reference

Brief description of class still missing. More...

#include <LayerPainterThread.h>

Inheritance diagram for SciFigs::LayerPainterThread:

List of all members.

Public Member Functions
LayerPainterRequest *	currentRequest () const
	LayerPainterThread (LayerPainter *parent)
void	terminate ()
Protected Member Functions
virtual void	run ()

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Detailed Description

Brief description of class still missing.

Full description of class still missing

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Constructor & Destructor Documentation

SciFigs::LayerPainterThread::LayerPainterThread

(

LayerPainter *

parent

)

  : Thread(parent), _parent(parent)
{
  _terminate=false;
  _currentRequest=0;
}

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Member Function Documentation

LayerPainterRequest* SciFigs::LayerPainterThread::currentRequest

(

)

const [inline]

{return _currentRequest;}

void SciFigs::LayerPainterThread::run

(

)

[protected, virtual]

References SciFigs::LayerPainterRequest::paint(), QGpCoreTools::Thread::setSleeping(), and TRACE.

{
  // CRASH: segmentation fault reported under windows Vista while closing Figue
  TRACE;
  while(true) {
    while(true) {
      if(_terminate.testAndSetOrdered(true, true)) {
        return;
      }
      // Check for new layers to paint, if nothing to do, the thread goes in sleep mode
      _parent->_queueMutex.lock();
      if(_parent->_queue.isEmpty()) {
        _parent->_queueMutex.unlock();
        break;
      }
      _currentRequest=_parent->_queue.dequeue();
      _parent->_queueMutex.unlock();
      //printf("%s: start painting %p\n",objectName().toAscii().data(), _currentRequest->graphContent());
      _currentRequest->paint();
      //printf("%s: stop painting %p\n",objectName().toAscii().data(), _currentRequest->graphContent());
      LayerPainterRequest * r=_currentRequest;
      _parent->_queueMutex.lock();
      _currentRequest=0;
      _parent->_queueMutex.unlock();
      r->deleteLater();
    }
    _parent->_waitMutex.lock();
    //printf("%s: sleeping\n",objectName().toAscii().data());
    setSleeping(true);
    _parent->_paintEvent.wait(&_parent->_waitMutex);
    setSleeping(false);
    //printf("%s: waking up\n",objectName().toAscii().data());
    _parent->_waitMutex.unlock();
  }
}

void SciFigs::LayerPainterThread::terminate

(

)

References SciFigs::LayerPainterRequest::terminate().

{
  _terminate.fetchAndStoreOrdered(true);
  _parent->_queueMutex.lock();
  if(_currentRequest) _currentRequest->terminate();
  _parent->_queueMutex.unlock();
}

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The documentation for this class was generated from the following files:

• SciFigs/LayerPainterThread.h
• SciFigs/LayerPainterThread.cpp