squawk/ui/widgets/about.cpp

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// Squawk messenger.
// Copyright (C) 2019 Yury Gubich <blue@macaw.me>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "about.h"
#include "ui_about.h"
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#include <QXmppGlobal.h>
#include <QDebug>
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static const std::string QXMPP_VERSION_PATCH(std::to_string(QXMPP_VERSION & 0xff));
static const std::string QXMPP_VERSION_MINOR(std::to_string((QXMPP_VERSION & 0xff00) >> 8));
static const std::string QXMPP_VERSION_MAJOR(std::to_string(QXMPP_VERSION >> 16));
static const QString QXMPP_VERSION_STRING = QString::fromStdString(QXMPP_VERSION_MAJOR + "." + QXMPP_VERSION_MINOR + "." + QXMPP_VERSION_PATCH);
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About::About(QWidget* parent):
QWidget(parent),
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m_ui(new Ui::About),
license(nullptr)
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{
m_ui->setupUi(this);
m_ui->versionValue->setText(QApplication::applicationVersion());
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m_ui->qtVersionValue->setText(qVersion());
m_ui->qtBuiltAgainstVersion->setText(tr("(built against %1)").arg(QT_VERSION_STR));
m_ui->qxmppVersionValue->setText(QXmppVersion());
m_ui->qxmppBuiltAgainstVersion->setText(tr("(built against %1)").arg(QXMPP_VERSION_STRING));
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setWindowFlag(Qt::Tool);
connect(m_ui->licenceLink, &QLabel::linkActivated, this, &About::onLicenseActivated);
}
About::~About() {
if (license != nullptr) {
license->deleteLater();
}
};
void About::onLicenseActivated()
{
if (license == nullptr) {
QFile file;
bool found = false;
QStringList shares = QStandardPaths::standardLocations(QStandardPaths::AppDataLocation);
for (const QString& path : shares) {
file.setFileName(path + "/LICENSE.md");
if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
found = true;
break;
}
}
if (!found) {
qDebug() << "couldn't read license file, bailing";
return;
}
license = new QWidget();
license->setWindowTitle(tr("License"));
QVBoxLayout* layout = new QVBoxLayout(license);
QLabel* text = new QLabel(license);
QScrollArea* area = new QScrollArea(license);
text->setTextFormat(Qt::MarkdownText);
text->setWordWrap(true);
text->setOpenExternalLinks(true);
text->setMargin(5);
area->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
layout->addWidget(area);
license->setAttribute(Qt::WA_DeleteOnClose);
connect(license, &QWidget::destroyed, this, &About::onLicenseClosed);
QTextStream in(&file);
QString line;
QString licenseText("");
while (!in.atEnd()) {
line = in.readLine();
licenseText.append(line + "\n");
}
text->setText(licenseText);
file.close();
area->setWidget(text);
} else {
license->raise();
license->activateWindow();
}
license->show();
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}
void About::onLicenseClosed()
{
license = nullptr;
}