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Issue #107: Add scanned pdf conversion to bitonal [enhancement]

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Jakub Melka
2023-11-11 17:33:32 +01:00
parent 881364f0a0
commit 908fb47af1
11 changed files with 467 additions and 1 deletions
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Pdf4QtViewer/pdfcreatebitonaldocumentdialog.cpp Normal file
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// Copyright (C) 2023 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#include "pdfcreateBitonaldocumentdialog.h"
#include "ui_pdfcreateBitonaldocumentdialog.h"
#include "pdfwidgetutils.h"
#include "pdfdocumentwriter.h"
#include "pdfdbgheap.h"
#include <QCheckBox>
#include <QPushButton>
#include <QElapsedTimer>
#include <QtConcurrent/QtConcurrent>
namespace pdfviewer
{
PDFCreateBitonalDocumentDialog::PDFCreateBitonalDocumentDialog(const pdf::PDFDocument* document, QWidget* parent) :
QDialog(parent),
ui(new Ui::PDFCreateBitonalDocumentDialog),
m_document(document),
m_createBitonalDocumentButton(nullptr),
m_conversionInProgress(false),
m_processed(false)
{
ui->setupUi(this);
m_createBitonalDocumentButton = ui->buttonBox->addButton(tr("Process"), QDialogButtonBox::ActionRole);
connect(m_createBitonalDocumentButton, &QPushButton::clicked, this, &PDFCreateBitonalDocumentDialog::onCreateBitonalDocumentButtonClicked);
connect(ui->automaticThresholdRadioButton, &QRadioButton::clicked, this, &PDFCreateBitonalDocumentDialog::updateUi);
connect(ui->manualThresholdRadioButton, &QRadioButton::clicked, this, &PDFCreateBitonalDocumentDialog::updateUi);
pdf::PDFWidgetUtils::scaleWidget(this, QSize(640, 380));
updateUi();
pdf::PDFWidgetUtils::style(this);
}
PDFCreateBitonalDocumentDialog::~PDFCreateBitonalDocumentDialog()
{
Q_ASSERT(!m_conversionInProgress);
Q_ASSERT(!m_future.isRunning());
delete ui;
}
void PDFCreateBitonalDocumentDialog::createBitonalDocument()
{
}
void PDFCreateBitonalDocumentDialog::onCreateBitonalDocumentButtonClicked()
{
Q_ASSERT(!m_conversionInProgress);
Q_ASSERT(!m_future.isRunning());
m_conversionInProgress = true;
m_future = QtConcurrent::run([this]() { createBitonalDocument(); });
updateUi();
}
void PDFCreateBitonalDocumentDialog::updateUi()
{
ui->thresholdEditBox->setEnabled(ui->manualThresholdRadioButton->isChecked());
ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(m_processed && !m_conversionInProgress);
ui->buttonBox->button(QDialogButtonBox::Cancel)->setEnabled(!m_conversionInProgress);
m_createBitonalDocumentButton->setEnabled(!m_conversionInProgress);
}
} // namespace pdfviewer