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// Licensed under the Apache-2.0 license. See README.md for details.
#include "ProgressWidget.h"
#include <QEventLoop>
#include <QLabel>
#include <QProgressBar>
#include <QVBoxLayout>
#include "tasks/Task.h"
ProgressWidget::ProgressWidget(QWidget* parent, bool show_label) : QWidget(parent)
{
auto* layout = new QVBoxLayout(this);
if (show_label) {
m_label = new QLabel(this);
m_label->setWordWrap(true);
layout->addWidget(m_label);
}
m_bar = new QProgressBar(this);
m_bar->setMinimum(0);
m_bar->setMaximum(100);
layout->addWidget(m_bar);
setLayout(layout);
}
void ProgressWidget::reset()
{
m_bar->reset();
}
void ProgressWidget::progressFormat(QString format)
{
if (format.isEmpty())
m_bar->setTextVisible(false);
else
m_bar->setFormat(format);
}
void ProgressWidget::watch(const Task* task)
{
if (!task)
return;
if (m_task)
disconnect(m_task, nullptr, this, nullptr);
m_task = task;
connect(m_task, &Task::finished, this, &ProgressWidget::handleTaskFinish);
connect(m_task, &Task::status, this, &ProgressWidget::handleTaskStatus);
// TODO: should we connect &Task::details
connect(m_task, &Task::progress, this, &ProgressWidget::handleTaskProgress);
connect(m_task, &Task::destroyed, this, &ProgressWidget::taskDestroyed);
if (m_task->isRunning())
show();
else
connect(m_task, &Task::started, this, &ProgressWidget::show);
}
void ProgressWidget::start(const Task* task)
{
watch(task);
if (!m_task->isRunning())
QMetaObject::invokeMethod(const_cast<Task*>(m_task), "start", Qt::QueuedConnection);
}
bool ProgressWidget::exec(std::shared_ptr<Task> task)
{
QEventLoop loop;
connect(task.get(), &Task::finished, &loop, &QEventLoop::quit);
start(task.get());
if (task->isRunning())
loop.exec();
return task->wasSuccessful();
}
void ProgressWidget::show()
{
setHidden(false);
}
void ProgressWidget::hide()
{
setHidden(true);
}
void ProgressWidget::handleTaskFinish()
{
if (!m_task->wasSuccessful() && m_label)
m_label->setText(m_task->failReason());
if (m_hide_if_inactive)
hide();
}
void ProgressWidget::handleTaskStatus(const QString& status)
{
if (m_label)
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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