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Soft memory leak bugfix

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This commit is contained in:
Jakub Melka
2020-05-30 18:31:50 +02:00
parent 91f1779053
commit 23a1275b9f
4 changed files with 18 additions and 6 deletions
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16
PdfForQtViewer/pdfviewermainwindow.cpp
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@ -85,6 +85,7 @@ PDFViewerMainWindow::PDFViewerMainWindow(QWidget* parent) :
m_progress(new pdf::PDFProgress(this)),
m_taskbarButton(new QWinTaskbarButton(this)),
m_progressTaskbarIndicator(nullptr),
m_futureWatcher(nullptr),
m_progressDialog(nullptr),
m_isBusy(false),
m_isChangingProgressStep(false),
@ -287,7 +288,6 @@ PDFViewerMainWindow::PDFViewerMainWindow(QWidget* parent) :
connect(m_progress, &pdf::PDFProgress::progressStarted, this, &PDFViewerMainWindow::onProgressStarted);
connect(m_progress, &pdf::PDFProgress::progressStep, this, &PDFViewerMainWindow::onProgressStep);
connect(m_progress, &pdf::PDFProgress::progressFinished, this, &PDFViewerMainWindow::onProgressFinished);
connect(&m_futureWatcher, &QFutureWatcher<AsyncReadingResult>::finished, this, &PDFViewerMainWindow::onDocumentReadingFinished);
connect(this, &PDFViewerMainWindow::queryPasswordRequest, this, &PDFViewerMainWindow::onQueryPasswordRequest, Qt::BlockingQueuedConnection);
connect(ui->actionFind, &QAction::triggered, this, [this] { m_toolManager->setActiveTool(m_toolManager->getFindTextTool()); });
@ -862,7 +862,7 @@ void PDFViewerMainWindow::updateUI(bool fullUpdate)
void PDFViewerMainWindow::updateActionsAvailability()
{
const bool isBusy = m_futureWatcher.isRunning() || m_isBusy;
const bool isBusy = (m_futureWatcher && m_futureWatcher->isRunning()) || m_isBusy;
const bool hasDocument = m_pdfDocument;
const bool hasValidDocument = !isBusy && hasDocument;
bool canPrint = false;
@ -957,7 +957,9 @@ void PDFViewerMainWindow::openDocument(const QString& fileName)
return result;
};
m_future = QtConcurrent::run(readDocument);
m_futureWatcher.setFuture(m_future);
m_futureWatcher = new QFutureWatcher<AsyncReadingResult>();
connect(m_futureWatcher, &QFutureWatcher<AsyncReadingResult>::finished, this, &PDFViewerMainWindow::onDocumentReadingFinished);
m_futureWatcher->setFuture(m_future);
updateActionsAvailability();
}
@ -966,6 +968,10 @@ void PDFViewerMainWindow::onDocumentReadingFinished()
QApplication::restoreOverrideCursor();
AsyncReadingResult result = m_future.result();
m_future = QFuture<AsyncReadingResult>();
m_futureWatcher->deleteLater();
m_futureWatcher = nullptr;
switch (result.result)
{
case pdf::PDFDocumentReader::Result::OK:
@ -1122,7 +1128,7 @@ int PDFViewerMainWindow::adjustDpiX(int value)
void PDFViewerMainWindow::closeEvent(QCloseEvent* event)
{
if (m_futureWatcher.isRunning())
if (m_futureWatcher && m_futureWatcher->isRunning())
{
// Jakub Melka: Do not allow to close the application, if document
// reading is running.
@ -1226,7 +1232,7 @@ void PDFViewerMainWindow::updateUndoRedoSettings()
void PDFViewerMainWindow::updateUndoRedoActions()
{
const bool isBusy = m_futureWatcher.isRunning() || m_isBusy;
const bool isBusy = (m_futureWatcher && m_futureWatcher->isRunning()) || m_isBusy;
const bool canUndo = !isBusy && m_undoRedoManager->canUndo();
const bool canRedo = !isBusy && m_undoRedoManager->canRedo();