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Asynchronous document loading

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Jakub Melka
2019-12-23 15:58:40 +01:00
parent 38748340fa
commit fb47d22225
2 changed files with 100 additions and 17 deletions
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22
PdfForQtViewer/pdfviewermainwindow.h
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@ -21,14 +21,18 @@
#include "pdfcatalog.h"
#include "pdfrenderer.h"
#include "pdfprogress.h"
#include "pdfdocument.h"
#include "pdfviewersettings.h"
#include "pdfdocumentreader.h"
#include "pdfdocumentpropertiesdialog.h"
#include <QFuture>
#include <QTreeView>
#include <QMainWindow>
#include <QSharedPointer>
#include <QWinTaskbarButton>
#include <QWinTaskbarProgress>
#include <QFutureWatcher>
class QLabel;
class QSpinBox;
@ -63,7 +67,12 @@ public:
virtual void closeEvent(QCloseEvent* event) override;
virtual void showEvent(QShowEvent* event) override;
signals:
void queryPasswordRequest(QString* password, bool* ok);
private slots:
void onQueryPasswordRequest(QString* password, bool* ok);
void on_actionPageLayoutSinglePage_triggered();
void on_actionPageLayoutContinuous_triggered();
void on_actionPageLayoutTwoPages_triggered();
@ -96,6 +105,8 @@ private:
void onProgressStep(int percentage);
void onProgressFinished();
void onDocumentReadingFinished();
void readSettings();
void readActionSettings();
void writeSettings();
@ -104,6 +115,7 @@ private:
void updatePageLayoutActions();
void updateRenderingOptionActions();
void updateUI(bool fullUpdate);
void updateActionsAvailability();
void onViewerSettingsChanged();
void onRenderingOptionTriggered(bool checked);
@ -119,6 +131,13 @@ private:
int adjustDpiX(int value);
struct AsyncReadingResult
{
QSharedPointer<pdf::PDFDocument> document;
QString errorMessage;
pdf::PDFDocumentReader::Result result = pdf::PDFDocumentReader::Result::Cancelled;
};
Ui::PDFViewerMainWindow* ui;
PDFViewerSettings* m_settings;
pdf::PDFWidget* m_pdfWidget;
@ -135,6 +154,9 @@ private:
QWinTaskbarButton* m_taskbarButton;
QWinTaskbarProgress* m_progressTaskbarIndicator;
PDFFileInfo m_fileInfo;
QFuture<AsyncReadingResult> m_future;
QFutureWatcher<AsyncReadingResult> m_futureWatcher;
};
} // namespace pdfviewer