C++ (Cpp) KstBaseCurvePtr Examples

Example #1

void KstObjectItem::activateHint(int id) {
  KstDataObjectPtr d = dataObject();
  const KstCurveHintList* hints = d->curveHints();
  int cnt = 0;
  for (KstCurveHintList::ConstIterator i = hints->begin(); i != hints->end(); ++i) {
    if (cnt == id) {
      KstBaseCurvePtr c = (*i)->makeCurve(KST::suggestCurveName(d->tag(), false), KstColorSequence::next());
      if (c) {
        KST::dataObjectList.lock().writeLock();
        KST::dataObjectList.append(c.data());
        KST::dataObjectList.lock().unlock();
        emit updated();
      } else {
        KMessageBox::sorry(KstApp::inst(), i18n("Unable to create quick curve."));
      }
      break;
    }
    ++cnt;
  }
}

Example #2

bool UpdateThread::doUpdates(bool force, bool *gotData) {
  KstObject::UpdateType U = KstObject::NO_CHANGE;

  _updatedCurves.clear(); // HACK

  if (gotData) {
    *gotData = false;
  }
  
#if UPDATEDEBUG > 0
  if (force) {
    qDebug() << "Forced update!" << endl;
  }
#endif

  _updateCounter++;
  if (_updateCounter < 1) {
    _updateCounter = 1; // check for wrap around
  }

#if UPDATEDEBUG > 2
  qDebug() << "UPDATE: counter=" << _updateCounter << endl;
#endif

  {
    // Must make a copy to avoid deadlock
    KstBaseCurveList cl;
    KstDataObjectList dol;
    kstObjectSplitList<KstDataObject, KstBaseCurve>(KST::dataObjectList, cl, dol);
    qSort(cl); 
    qSort(dol); 

    // Update all curves
    for (uint i = 0; i < cl.count(); ++i) {
      KstBaseCurvePtr bcp = cl[i];
      bcp->writeLock();
      assert(bcp.data());
#if UPDATEDEBUG > 1
      qDebug() << "updating curve: " << (void*)bcp << " - " << bcp->tagName() << endl;
#endif
      KstObject::UpdateType ut = bcp->update(_updateCounter);
      bcp->unlock();

      if (ut == KstObject::UPDATE) { // HACK
        _updatedCurves.append(bcp);
      }

      if (U != KstObject::UPDATE) {
        U = ut;
        if (U == KstObject::UPDATE) {
#if UPDATEDEBUG > 0
          qDebug() << "Curve " << bcp->tagName() << " said UPDATE" << endl;
#endif
        }
      }

      if (_done || (_paused && !force)) {
#if UPDATEDEBUG > 1
        qDebug() << "5 Returning from scan with U=" << (int)U << endl;
#endif
        return U == KstObject::UPDATE;
      }
    }

    // Update all data objects
    for (uint i = 0; i < dol.count(); ++i) {
      KstDataObjectPtr dp = dol[i];
      dp->writeLock();
      assert(dp.data());
#if UPDATEDEBUG > 1
      qDebug() << "updating data object: " << (void*)dp << " - " << dp->tagName() << endl;
#endif
      dp->update(_updateCounter);
      dp->unlock();

      if (_done || (_paused && !force)) {
#if UPDATEDEBUG > 1
        qDebug() << "5 Returning from scan with U=" << (int)U << endl;
#endif
        return U == KstObject::UPDATE;
      }
    }
  }

  // Update the files
  if (!_paused) { // don't update even if paused && force
    KST::dataSourceList.lock().readLock();
    unsigned cnt = KST::dataSourceList.count();
    for (uint i = 0; i < cnt; ++i) {
      KstDataSourcePtr dsp = KST::dataSourceList[i];

      dsp->writeLock();
      dsp->update(_updateCounter);
      dsp->unlock();

      if (_done) {
        KST::dataSourceList.lock().unlock();
        return false;
      }
    }
    KST::dataSourceList.lock().unlock();
  }

  if (KstScalar::scalarsDirty()) {
    KstScalar::clearScalarsDirty(); // Must do this first and take a risk of
                                    // falling slightly behind
    KST::scalarList.lock().readLock();
    KstScalarList sl = Q3DeepCopy<KstScalarList>(KST::scalarList.list()); // avoid deadlock on exit
    KST::scalarList.lock().unlock();
    for (KstScalarList::ConstIterator i = sl.begin(); i != sl.end(); ++i) {
      KstScalarPtr sp = *i;

      sp->writeLock();
      KstObject::UpdateType ut = sp->update(_updateCounter);
      sp->unlock();

      if (ut == KstObject::UPDATE) {
        U = KstObject::UPDATE;
      }

      if (_done) {
        return false;
      }
    }
  }

  if (U == KstObject::UPDATE) {
    qDebug() << "Update plots" << endl;
    if (gotData) { // FIXME: do we need to consider all the other exit points?
      *gotData = true;
    }
  }

#if UPDATEDEBUG > 1
  qDebug() << "6 Returning from scan with U=" << (int)U << endl;
#endif
  return U == KstObject::UPDATE;
}