99 lines
2.6 KiB
C++
99 lines
2.6 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2021 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "task.h"
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#include <QtConcurrent/QtConcurrent>
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namespace olive {
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#define super ProgressDialog
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TaskDialog::TaskDialog(Task* task, const QString& title, QWidget *parent) :
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super(task->GetTitle(), title, parent),
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task_(task),
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destroy_on_close_(true),
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already_shown_(false)
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{
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// Clear task when this dialog is destroyed
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task_->setParent(this);
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// Connect the save manager progress signal to the progress bar update on the dialog
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connect(task_, &Task::ProgressChanged, this, &TaskDialog::SetProgress, Qt::QueuedConnection);
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// Connect cancel signal (must be a direct connection or it'll be queued after the task has
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// already finished)
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connect(this, &TaskDialog::Cancelled, task_, &Task::Cancel, Qt::DirectConnection);
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}
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void TaskDialog::showEvent(QShowEvent *e)
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{
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super::showEvent(e);
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if (!already_shown_) {
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// Create watcher for when the task finishes
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QFutureWatcher<bool>* task_watcher = new QFutureWatcher<bool>();
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// Listen for when the task finishes
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connect(task_watcher, &QFutureWatcher<bool>::finished,
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this, &TaskDialog::TaskFinished, Qt::QueuedConnection);
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// Run task in another thread with QtConcurrent
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task_watcher->setFuture(QtConcurrent::run(task_, &Task::Start));
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already_shown_ = true;
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}
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}
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void TaskDialog::closeEvent(QCloseEvent *e)
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{
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// Cancel task if it is running
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task_->Cancel();
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// Standard close function
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super::closeEvent(e);
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// Reset shown
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already_shown_ = false;
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// Clean up this task and dialog
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if (destroy_on_close_) {
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deleteLater();
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}
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}
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void TaskDialog::TaskFinished()
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{
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QFutureWatcher<bool>* task_watcher = static_cast<QFutureWatcher<bool>*>(sender());
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if (task_watcher->result()) {
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emit TaskSucceeded(task_);
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} else {
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ShowErrorMessage(tr("Task Failed"), task_->GetError());
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emit TaskFailed(task_);
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}
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task_watcher->deleteLater();
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close();
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}
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}
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