feat: restore changes func

mainwindow.cpp

@@ -15,6 +15,7 @@ MainWindow::MainWindow(QWidget *parent)
     , ui(new Ui::MainWindow)
 {
     ui->setupUi(this);
+    isRecovery = false;
     setWindowFlag(Qt::FramelessWindowHint);
     painting();
     initialize();
@@ -80,7 +81,7 @@ void MainWindow::createObjects()
     recognizeSystem = new RecognizeSystem;
     recognizeSystem->moveToThread(connectionThread);
 
-    screenChecker = new ScreenChecker(dataParser,ui->displayLayout);
+    screenChecker = new ScreenChecker(this,dataParser,ui->displayLayout);
     externalExecuter = new ExternalExecuter;
 
     hashComparer = new HashComparer(dataParser);
@@ -154,12 +155,19 @@ void MainWindow::setNeedUpdate(bool flag,quint64 size, quint64 fileCount)
     fileCountForUpdate = fileCount;
     QString availableSizeText;
 
-    if (flag){
+    if (flag && isRecovery)
+    {
+        ui->inlineTextDebug->setText("Восстановление версии...");
+
+    }
+    else if(flag)
+    {
         QString result = tr("Доступно обновление: ") + Tools::convertFileSize(size);
         result += tr("Количество файлов: ") + QString::number(fileCount);
         ui->inlineTextDebug->setText(result);
         ui->updateButton->show();
         ui->autostartCheckBox->show();
+        stopLoadingMovie();
     }
     else
     {
@@ -167,10 +175,10 @@ void MainWindow::setNeedUpdate(bool flag,quint64 size, quint64 fileCount)
         autoStart();
         ui->loadingProgressBar->hide();
         ui->startButton->show();
+        ui->offlineStartButton->setEnabled(true);
+        stopLoadingMovie();
     }
 
-
-    stopLoadingMovie();
     ui->updateButton->setEnabled(flag);
     ui->startButton->setEnabled(!flag);
 }
@@ -367,6 +375,7 @@ void MainWindow::on_loginButton_clicked()
 void MainWindow::on_updateButton_clicked()
 {
     emit sigSendCommand("update");
+
     ui->updateButton->hide();
     ui->loadingProgressBar->setValue(0);
     ui->loadingProgressBar->show();
@@ -433,11 +442,28 @@ void MainWindow::on_loadToServerButton_clicked()
 
 void MainWindow::on_undoChangesButton_clicked()
 {
+    isRecovery = true;
+    emit sigSendCommand("check");
+
     ui->loadingProgressBar->show();
-    ui->offlineStartButton->hide();
+    ui->offlineStartButton->setEnabled(false);
+
     ui->updateButtonGroup_2->hide();
     ui->updateWidget->hide();
+
+    startLoadingAnim();
+
+    //delay
+
+    QTime dieTime= QTime::currentTime().addSecs(10);
+    while (QTime::currentTime() < dieTime)
+        QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
+
+    startLoadingAnim();
+    ui->updateButton->hide();
     on_updateButton_clicked();
+    isRecovery = false;
+    stopLoadingMovie();
 }
 
 void MainWindow::on_startWithCurrentChangesButton_clicked()
@@ -488,9 +514,11 @@ void MainWindow::showCompleteDialogBox(bool flag)
 {
     ui->inlineTextDebug->setText(tr("Загрузка завершена"));
     startLoadingAnim();
+
     QTime dieTime= QTime::currentTime().addSecs(10);
     while (QTime::currentTime() < dieTime)
         QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
+
     stopLoadingMovie();
     checkUpdate();
 }
@@ -551,7 +579,6 @@ void MainWindow::painting()
     movieLabel->setSizePolicy(QSizePolicy::Minimum,QSizePolicy::Minimum);
     movieLabel->setMovie(movie);
     startLoadingAnim();
-
 }
 
 void MainWindow::startLoadingAnim()