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// Licensed under the Apache-2.0 license. See README.md for details.
#include "ProgressWidget.h"
#include <QProgressBar>
#include <QLabel>
#include <QVBoxLayout>
#include <QEventLoop>
#include "tasks/Task.h"
ProgressWidget::ProgressWidget(QWidget *parent)
: QWidget(parent)
{
m_label = new QLabel(this);
m_label->setWordWrap(true);
m_bar = new QProgressBar(this);
m_bar->setMinimum(0);
m_bar->setMaximum(100);
QVBoxLayout *layout = new QVBoxLayout(this);
layout->addWidget(m_label);
layout->addWidget(m_bar);
layout->addStretch();
setLayout(layout);
}
void ProgressWidget::start(std::shared_ptr<Task> task)
{
if (m_task)
{
disconnect(m_task.get(), 0, this, 0);
}
m_task = task;
connect(m_task.get(), &Task::finished, this, &ProgressWidget::handleTaskFinish);
connect(m_task.get(), &Task::status, this, &ProgressWidget::handleTaskStatus);
connect(m_task.get(), &Task::progress, this, &ProgressWidget::handleTaskProgress);
connect(m_task.get(), &Task::destroyed, this, &ProgressWidget::taskDestroyed);
if (!m_task->isRunning())
{
QMetaObject::invokeMethod(m_task.get(), "start", Qt::QueuedConnection);
}
}
bool ProgressWidget::exec(std::shared_ptr<Task> task)
{
QEventLoop loop;
connect(task.get(), &Task::finished, &loop, &QEventLoop::quit);
start(task);
if (task->isRunning())
{
loop.exec();
}
return task->wasSuccessful();
}
void ProgressWidget::handleTaskFinish()
{
if (!m_task->wasSuccessful())
{
m_label->setText(m_task->failReason());
}
}
void ProgressWidget::handleTaskStatus(const QString &status)
{
m_label->setText(status);
}
void ProgressWidget::handleTaskProgress(qint64 current, qint64 total)
{
m_bar->setMaximum(total);
m_bar->setValue(current);
}
void ProgressWidget::taskDestroyed()
{
m_task = nullptr;
}
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