Method startTask

Gui/ProgressPanel.cpp:435–501

}

void
ProgressPanel::startTask(const NodePtr& node,
                         const int firstFrame,
                         const int lastFrame,
                         const int frameStep,
                         const bool canPause,
                         const bool canCancel,
                         const QString& message,
                         const ProcessHandlerPtr& process)
{
    assert( QThread::currentThread() == qApp->thread() );
    if (!node) {
        return;
    }
    assert( (canPause && firstFrame != std::numeric_limits<int>::min() && lastFrame != std::numeric_limits<int>::max()) || !canPause );

    ProgressTaskInfoPtr task;
    {
        QMutexLocker k(&_imp->tasksMutex);
        task = _imp->findTask(node);
    }
    if (task) {
        task->cancelTask(false, 1);
        removeTaskFromTable(task);
    }


    QMutexLocker k(&_imp->tasksMutex);

    task.reset( new ProgressTaskInfo(this,
                                     node,
                                     firstFrame,
                                     lastFrame,
                                     frameStep,
                                     canPause,
                                     canCancel,
                                     message, process) );

    task->setTaskBar(_taskbar);

    if ( canPause || node->getEffectInstance()->isOutput() ) {
        task->createItems();
        QTimer::singleShot( NATRON_DISPLAY_PROGRESS_PANEL_AFTER_MS, this, SLOT(onShowProgressPanelTimerTriggered()) );
    }

    if (process) {
        connectProcessSlots( task.get(), process.get() );
    }
    if (!process) {
        if ( node->getEffectInstance()->isOutput() ) {
            OutputEffectInstance* isOutput = dynamic_cast<OutputEffectInstance*>( node->getEffectInstance().get() );
            if (isOutput) {

                if ( getGui() && !getGui()->isGUIFrozen() && appPTR->getCurrentSettings()->isAutoTurboEnabled() ) {
                    getGui()->onFreezeUIButtonClicked(true);
                }

                RenderEnginePtr engine = isOutput->getRenderEngine();