Issue #118: First part of splitting

Pdf4QtLibCore/sources/pdficontheme.cpp

@@ -0,0 +1,124 @@
+//    Copyright (C) 2021-2022 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 "pdficontheme.h"
+#include "pdfdbgheap.h"
+
+#include <QCoreApplication>
+
+namespace pdf
+{
+
+void PDFIconTheme::registerAction(QAction* action, QString iconFileName)
+{
+    m_actionInfos.emplace_back(action, std::move(iconFileName));
+}
+
+QString PDFIconTheme::getDirectory() const
+{
+    return m_directory;
+}
+
+void PDFIconTheme::setDirectory(const QString& directory)
+{
+    m_directory = directory;
+}
+
+QString PDFIconTheme::getPrefix() const
+{
+    return m_prefix;
+}
+
+void PDFIconTheme::setPrefix(const QString& prefix)
+{
+    m_prefix = prefix;
+}
+
+void PDFIconTheme::prepareTheme()
+{
+    QString directory = getThemeDirectory();
+    QDir dir(directory);
+
+    if (!dir.exists())
+    {
+        dir.mkpath(directory);
+
+        QStringList infoList;
+
+        for (const ActionInfo& actionInfo : m_actionInfos)
+        {
+            QString fileName = formatFileName(actionInfo, directory);
+            if (!QFile::exists(fileName))
+            {
+                QFile::copy(actionInfo.fileName, fileName);
+                QFile::setPermissions(fileName, QFile::Permissions(0xFFFF));
+            }
+
+            infoList << QString("%1;%2").arg(actionInfo.action->text(), fileName);
+        }
+
+        if (!infoList.isEmpty())
+        {
+            QFile file(directory + "/icons.txt");
+            if (file.open(QFile::WriteOnly | QFile::Text | QFile::Truncate))
+            {
+                {
+                    QTextStream stream(&file);
+                    stream.setEncoding(QStringConverter::Utf8);
+                    stream.setGenerateByteOrderMark(true);
+                    for (const QString& text : infoList)
+                    {
+                        stream << text << Qt::endl;
+                    }
+                }
+                file.close();
+            }
+        }
+    }
+}
+
+void PDFIconTheme::loadTheme()
+{
+    QString directory = getThemeDirectory();
+    QDir dir(directory);
+
+    if (dir.exists())
+    {
+        for (const ActionInfo& actionInfo : m_actionInfos)
+        {
+            QString fileName = formatFileName(actionInfo, directory);
+            if (QFile::exists(fileName))
+            {
+                actionInfo.action->setIcon(QIcon(fileName));
+            }
+        }
+    }
+}
+
+QString PDFIconTheme::getThemeDirectory() const
+{
+    return QCoreApplication::applicationDirPath() + "/" + m_directory;
+}
+
+QString PDFIconTheme::formatFileName(const ActionInfo& info, const QString& themeDirectory) const
+{
+    QString fileName = info.fileName;
+    fileName.remove(m_prefix);
+    return QString("%1/%2").arg(themeDirectory, fileName);
+}
+
+}   // namespace pdf