mirror of https://github.com/JakubMelka/PDF4QT.git
136 lines
3.8 KiB
C++
136 lines
3.8 KiB
C++
// Copyright (C) 2020-2021 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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#include "pdfselectpagesdialog.h"
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#include "ui_pdfselectpagesdialog.h"
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#include "pdfwidgetutils.h"
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#include <QMessageBox>
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namespace pdf
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{
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PDFSelectPagesDialog::PDFSelectPagesDialog(QString windowTitle,
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QString groupBoxTitle,
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pdf::PDFInteger pageCount,
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const std::vector<pdf::PDFInteger>& visiblePages,
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QWidget* parent) :
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QDialog(parent),
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ui(new Ui::PDFSelectPagesDialog),
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m_pageCount(pageCount),
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m_visiblePages(visiblePages)
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{
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ui->setupUi(this);
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setWindowTitle(windowTitle);
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ui->selectPagesGroupBox->setTitle(groupBoxTitle);
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for (pdf::PDFInteger& pageIndex : m_visiblePages)
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{
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++pageIndex;
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}
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m_evenPages.reserve(pageCount / 2);
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m_oddPages.reserve(pageCount / 2 + 1);
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for (pdf::PDFInteger i = 1; i <= pageCount; ++i)
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{
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if (i % 2 == 1)
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{
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m_oddPages.push_back(i);
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}
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else
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{
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m_evenPages.push_back(i);
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}
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}
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connect(ui->customPageRangeRadioButton, &QRadioButton::toggled, this, &PDFSelectPagesDialog::updateUi);
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setMinimumWidth(pdf::PDFWidgetUtils::scaleDPI_x(this, 400));
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updateUi();
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}
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PDFSelectPagesDialog::~PDFSelectPagesDialog()
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{
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delete ui;
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}
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std::vector<pdf::PDFInteger> PDFSelectPagesDialog::getSelectedPages() const
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{
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std::vector<pdf::PDFInteger> result;
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if (ui->visiblePagesRadioButton->isChecked())
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{
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result = m_visiblePages;
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}
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else if (ui->allPagesRadioButton->isChecked())
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{
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result.resize(m_pageCount, 0);
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std::iota(result.begin(), result.end(), 1);
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}
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else if (ui->evenPagesRadioButton->isChecked())
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{
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result = m_evenPages;
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}
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else if (ui->oddPagesRadioButton->isChecked())
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{
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result = m_oddPages;
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}
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else if (ui->customPageRangeRadioButton->isChecked())
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{
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QString errorMessage;
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result = pdf::PDFClosedIntervalSet::parse(1, m_pageCount, ui->customPageRangeEdit->text(), &errorMessage).unfold();
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}
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else
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{
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Q_ASSERT(false);
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}
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return result;
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}
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void PDFSelectPagesDialog::updateUi()
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{
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ui->customPageRangeEdit->setEnabled(ui->customPageRangeRadioButton->isChecked());
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}
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void PDFSelectPagesDialog::accept()
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{
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if (ui->customPageRangeRadioButton->isChecked())
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{
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QString errorMessage;
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pdf::PDFClosedIntervalSet::parse(1, m_pageCount, ui->customPageRangeEdit->text(), &errorMessage);
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if (!errorMessage.isEmpty())
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{
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QMessageBox::critical(this, tr("Error"), errorMessage);
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return;
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}
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}
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if (getSelectedPages().empty())
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{
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QMessageBox::critical(this, tr("Error"), tr("Selected page range is empty."));
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return;
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}
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QDialog::accept();
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}
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} // namespace pdf
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