DocDiff application: Initial commit

Pdf4QtDocDiff/mainwindow.cpp

@@ -0,0 +1,177 @@
+//    Copyright (C) 2021 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 "mainwindow.h"
+#include "ui_mainwindow.h"
+
+#include "aboutdialog.h"
+
+#include "pdfwidgetutils.h"
+
+#include <QToolBar>
+#include <QDesktopWidget>
+#include <QDesktopServices>
+
+namespace pdfdocdiff
+{
+
+MainWindow::MainWindow(QWidget* parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+    setMinimumSize(pdf::PDFWidgetUtils::scaleDPI(this, QSize(800, 600)));
+
+    ui->actionGet_Source->setData(int(Operation::GetSource));
+    ui->actionAbout->setData(int(Operation::About));
+
+    QSize iconSize = pdf::PDFWidgetUtils::scaleDPI(this, QSize(24, 24));
+    auto toolbars = findChildren<QToolBar*>();
+    for (QToolBar* toolbar : toolbars)
+    {
+        toolbar->setIconSize(iconSize);
+        ui->menuToolbars->addAction(toolbar->toggleViewAction());
+    }
+
+    connect(&m_mapper, QOverload<int>::of(&QSignalMapper::mapped), this, &MainWindow::onMappedActionTriggered);
+
+    QList<QAction*> actions = findChildren<QAction*>();
+    for (QAction* action : actions)
+    {
+        QVariant actionData = action->data();
+        if (actionData.isValid())
+        {
+            connect(action, &QAction::triggered, &m_mapper, QOverload<>::of(&QSignalMapper::map));
+            m_mapper.setMapping(action, actionData.toInt());
+        }
+    }
+
+    m_diff.setLeftDocument(&m_leftDocument);
+    m_diff.setRightDocument(&m_rightDocument);
+
+    loadSettings();
+    updateActions();
+}
+
+MainWindow::~MainWindow()
+{
+    saveSettings();
+    delete ui;
+}
+
+void MainWindow::onMappedActionTriggered(int actionId)
+{
+    performOperation(static_cast<Operation>(actionId));
+}
+
+void MainWindow::updateActions()
+{
+    QList<QAction*> actions = findChildren<QAction*>();
+    for (QAction* action : actions)
+    {
+        QVariant actionData = action->data();
+        if (actionData.isValid())
+        {
+            action->setEnabled(canPerformOperation(static_cast<Operation>(actionData.toInt())));
+        }
+    }
+}
+
+void MainWindow::loadSettings()
+{
+    QSettings settings(QSettings::IniFormat, QSettings::UserScope, QCoreApplication::organizationName(), QCoreApplication::applicationName());
+    settings.beginGroup("MainWindow");
+    QByteArray geometry = settings.value("geometry", QByteArray()).toByteArray();
+    if (geometry.isEmpty())
+    {
+        QRect availableGeometry = QApplication::desktop()->availableGeometry(this);
+        QRect windowRect(0, 0, availableGeometry.width() / 2, availableGeometry.height() / 2);
+        windowRect = windowRect.translated(availableGeometry.center() - windowRect.center());
+        setGeometry(windowRect);
+    }
+    else
+    {
+        restoreGeometry(geometry);
+    }
+
+    QByteArray state = settings.value("windowState", QByteArray()).toByteArray();
+    if (!state.isEmpty())
+    {
+        restoreState(state);
+    }
+    settings.endGroup();
+
+    settings.beginGroup("Settings");
+    m_settings.directory = settings.value("directory").toString();
+    settings.endGroup();
+}
+
+void MainWindow::saveSettings()
+{
+    QSettings settings(QSettings::IniFormat, QSettings::UserScope, QCoreApplication::organizationName(), QCoreApplication::applicationName());
+    settings.beginGroup("MainWindow");
+    settings.setValue("geometry", saveGeometry());
+    settings.setValue("windowState", saveState());
+    settings.endGroup();
+
+    settings.beginGroup("Settings");
+    settings.setValue("directory", m_settings.directory);
+    settings.endGroup();
+}
+
+bool MainWindow::canPerformOperation(Operation operation) const
+{
+    switch (operation)
+    {
+        case Operation::GetSource:
+        case Operation::About:
+            return true;
+
+        default:
+            Q_ASSERT(false);
+            break;
+    }
+
+    return false;
+}
+
+void MainWindow::performOperation(Operation operation)
+{
+    switch (operation)
+    {
+        case Operation::GetSource:
+            QDesktopServices::openUrl(QUrl("https://github.com/JakubMelka/PDF4QT"));
+            break;
+
+        case Operation::About:
+        {
+            PDFAboutDialog aboutDialog(this);
+            aboutDialog.exec();
+            break;
+        }
+        default:
+        {
+            Q_ASSERT(false);
+            break;
+        }
+    }
+
+    updateActions();
+}
+
+}   // namespace pdfdocdiff