mirror of
https://github.com/JakubMelka/PDF4QT.git
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116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
// Copyright (C) 2023 Jakub Melka
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//
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// This file is part of PDF4QT.
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//
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// PDF4QT is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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// with the written consent of the copyright owner, any later version.
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//
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// PDF4QT 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
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#ifndef PDFCREATEBITONALDOCUMENTDIALOG_H
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#define PDFCREATEBITONALDOCUMENTDIALOG_H
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#include "pdfcms.h"
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#include "pdfdocument.h"
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#include "pdfobjectutils.h"
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#include "pdfimage.h"
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#include "pdfimageconversion.h"
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#include "pdfprogress.h"
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#include <QDialog>
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#include <QFuture>
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#include <QFutureWatcher>
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namespace Ui
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{
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class PDFCreateBitonalDocumentDialog;
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}
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namespace pdfviewer
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{
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class PDFCreateBitonalDocumentPreviewWidget : public QWidget
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{
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Q_OBJECT
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public:
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PDFCreateBitonalDocumentPreviewWidget(QWidget* parent);
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virtual ~PDFCreateBitonalDocumentPreviewWidget() override;
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virtual void paintEvent(QPaintEvent* event) override;
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void setCaption(QString caption);
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void setImage(QImage image);
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private:
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QString m_caption;
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QImage m_image;
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};
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class PDFCreateBitonalDocumentDialog : public QDialog
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{
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Q_OBJECT
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public:
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explicit PDFCreateBitonalDocumentDialog(const pdf::PDFDocument* document,
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const pdf::PDFCMS* cms,
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pdf::PDFProgress* progress,
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QWidget* parent);
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virtual ~PDFCreateBitonalDocumentDialog() override;
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pdf::PDFDocument takeBitonaldDocument() { return qMove(m_bitonalDocument); }
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struct ImageConversionInfo
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{
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pdf::PDFObjectReference imageReference;
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bool conversionEnabled = true;
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};
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private:
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void createBitonalDocument();
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void onCreateBitonalDocumentButtonClicked();
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void onPerformFinished();
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void loadImages();
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void updateUi();
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void updatePreview();
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std::optional<pdf::PDFImage> getImageFromReference(pdf::PDFObjectReference reference) const;
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Ui::PDFCreateBitonalDocumentDialog* ui;
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const pdf::PDFDocument* m_document;
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const pdf::PDFCMS* m_cms;
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QPushButton* m_createBitonalDocumentButton;
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bool m_conversionInProgress;
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bool m_processed;
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QFuture<void> m_future;
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std::optional<QFutureWatcher<void>> m_futureWatcher;
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pdf::PDFDocument m_bitonalDocument;
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pdf::PDFObjectClassifier m_classifier;
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std::vector<pdf::PDFObjectReference> m_imageReferences;
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std::vector<ImageConversionInfo> m_imagesToBeConverted;
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QImage m_previewImageLeft;
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QImage m_previewImageRight;
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PDFCreateBitonalDocumentPreviewWidget* m_leftPreviewWidget;
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PDFCreateBitonalDocumentPreviewWidget* m_rightPreviewWidget;
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pdf::PDFProgress* m_progress;
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pdf::PDFImageConversion::ConversionMethod m_conversionMethod = pdf::PDFImageConversion::ConversionMethod::Automatic;
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int m_manualThreshold = 128;
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};
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} // namespace pdfviewer
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#endif // PDFCREATEBITONALDOCUMENTDIALOG_H
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