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// Created on: 2017-06-16
// Created by: Natalia ERMOLAEVA
// Copyright (c) 2017 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <inspector/DFBrowser_Thread.hxx>
#include <inspector/DFBrowser_ThreadItemSearch.hxx>
#include <inspector/DFBrowser_TreeLevelLine.hxx>
#include <inspector/DFBrowser_SearchLine.hxx>
#include <inspector/DFBrowser_Window.hxx>
#include <Standard_WarningsDisable.hxx>
#include <QThread>
#include <Standard_WarningsRestore.hxx>
//! \class DFBrowser_QThread
//! Internal class to cover QThread in order to process ThreadItem.
class DFBrowser_QThread : public QThread
{
public:
//! Constructor
DFBrowser_QThread (QObject* theParent) : QThread (theParent), myItem (0) {}
//! Destructor
virtual ~DFBrowser_QThread() Standard_OVERRIDE {}
//! Sets thread item to be processed
//! \param theItem a thread item
void setItem (DFBrowser_ThreadItem* theItem) { myItem = theItem; }
//! Returns the current processing thread item
DFBrowser_ThreadItem* getItem() const { return myItem; }
protected:
//! Starts thread item
virtual void run() Standard_OVERRIDE
{
if (myItem)
myItem->Run();
}
private:
DFBrowser_ThreadItem* myItem;
};
// =======================================================================
// function : Constructor
// purpose :
// =======================================================================
DFBrowser_Thread::DFBrowser_Thread (DFBrowser_Window* theWindow)
: QObject (theWindow), myPostponedItem (0), myIsFinishProcessing (false)
{
DFBrowser_SearchLine* aSearchLine = theWindow->GetTreeLevelLine()->GetSearchLine();
myItems.append (new DFBrowser_ThreadItemSearch(aSearchLine));
}
// =======================================================================
// function : ProcessApplication
// purpose :
// =======================================================================
void DFBrowser_Thread::ProcessApplication()
{
for (int anItemId = 0, aSize = myItems.size(); anItemId < aSize; anItemId++)
startThread (myItems[anItemId]);
}
// =======================================================================
// function : startThread
// purpose :
// =======================================================================
void DFBrowser_Thread::startThread (DFBrowser_ThreadItem* theItem)
{
DFBrowser_QThread* aThread = new DFBrowser_QThread (this);
aThread->setItem (theItem);
aThread->start();
connect (aThread, SIGNAL (finished()), this, SLOT (onFinished()), Qt::QueuedConnection);
myStartedThreads.append (aThread);
}
// =======================================================================
// function : TerminateThread
// purpose :
// =======================================================================
void DFBrowser_Thread::TerminateThread()
{
for (int aThreadsId = 0, aCount = myStartedThreads.size(); aThreadsId < aCount; aThreadsId++)
{
QThread* aThread = myStartedThreads[aThreadsId];
if (aThread->isRunning())
aThread->terminate();
}
}
// =======================================================================
// function : onFinished
// purpose :
// =======================================================================
void DFBrowser_Thread::onFinished()
{
DFBrowser_QThread* aThread = (DFBrowser_QThread*)(sender());
if (myIsFinishProcessing)
{
// if thread send signal when other finished signal is processed
if (aThread)
myPostponedItem = aThread->getItem();
return;
}
myIsFinishProcessing = true;
if (aThread)
{
myStartedThreads.removeAll (aThread);
DFBrowser_ThreadItem* anItem = aThread->getItem();
if (anItem)
anItem->ApplyValues();
}
myIsFinishProcessing = false;
if (myPostponedItem)
{
myPostponedItem->ApplyValues();
myPostponedItem = 0;
}
}
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