95 lines
2.3 KiB
C++
95 lines
2.3 KiB
C++
#include "SequentialTask.h"
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SequentialTask::SequentialTask(QObject* parent, const QString& task_name) : Task(parent), m_name(task_name), m_currentIndex(-1) {}
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SequentialTask::~SequentialTask()
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{
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for(auto task : m_queue){
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if(task)
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task->deleteLater();
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}
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}
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auto SequentialTask::getStepProgress() const -> qint64
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{
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return m_stepProgress;
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}
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auto SequentialTask::getStepTotalProgress() const -> qint64
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{
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return m_stepTotalProgress;
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}
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void SequentialTask::addTask(Task::Ptr task)
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{
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m_queue.append(task);
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}
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void SequentialTask::executeTask()
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{
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m_currentIndex = -1;
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startNext();
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}
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bool SequentialTask::abort()
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{
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if(m_currentIndex == -1 || m_currentIndex >= m_queue.size()) {
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if(m_currentIndex == -1) {
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// Don't call emitAborted() here, we want to bypass the 'is the task running' check
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emit aborted();
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emit finished();
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}
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m_queue.clear();
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return true;
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}
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bool succeeded = m_queue[m_currentIndex]->abort();
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m_queue.clear();
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if(succeeded)
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emitAborted();
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return succeeded;
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}
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void SequentialTask::startNext()
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{
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if (m_currentIndex != -1) {
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Task::Ptr previous = m_queue[m_currentIndex];
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disconnect(previous.get(), 0, this, 0);
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}
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m_currentIndex++;
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if (m_queue.isEmpty() || m_currentIndex >= m_queue.size()) {
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emitSucceeded();
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return;
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}
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Task::Ptr next = m_queue[m_currentIndex];
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connect(next.get(), SIGNAL(failed(QString)), this, SLOT(subTaskFailed(QString)));
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connect(next.get(), SIGNAL(status(QString)), this, SLOT(subTaskStatus(QString)));
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connect(next.get(), SIGNAL(progress(qint64, qint64)), this, SLOT(subTaskProgress(qint64, qint64)));
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connect(next.get(), SIGNAL(succeeded()), this, SLOT(startNext()));
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setStatus(tr("Executing task %1 out of %2").arg(m_currentIndex + 1).arg(m_queue.size()));
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next->start();
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}
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void SequentialTask::subTaskFailed(const QString& msg)
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{
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emitFailed(msg);
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}
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void SequentialTask::subTaskStatus(const QString& msg)
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{
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setStepStatus(m_queue[m_currentIndex]->getStatus());
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}
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void SequentialTask::subTaskProgress(qint64 current, qint64 total)
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{
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if (total == 0) {
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setProgress(0, 100);
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return;
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}
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setProgress(m_currentIndex + 1, m_queue.count());
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m_stepProgress = current;
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m_stepTotalProgress = total;
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}
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