Move icon loader to utility class

src/mmg-qt/main_window.cpp

@@ -6,8 +6,12 @@
 #include "mmg-qt/util/file_identifier.h"
 #include "mmg-qt/util/file_type_filter.h"
 #include "mmg-qt/util/settings.h"
+#include "mmg-qt/util/util.h"
 
 #include <QFileDialog>
+#include <QIcon>
+#include <QList>
+#include <QString>
 
 MainWindow::MainWindow(QWidget *parent)
   : QMainWindow{parent}
@@ -15,9 +19,7 @@ MainWindow::MainWindow(QWidget *parent)
 {
   ui->setupUi(this);
 
-  QIcon icon{":/icons/32x32/mkvmergeGUI.png"};
-  icon.addFile(":/icons/64x64/mkvmergeGUI.png");
-  setWindowIcon(icon);
+  setWindowIcon(Util::loadIcon(Q("mkvmergeGUI.png"), QList<int>{} << 32 << 48 << 64 << 128 << 256));
 }
 
 MainWindow::~MainWindow() {

src/mmg-qt/util/util.cpp

@@ -0,0 +1,18 @@
+#include "common/common_pch.h"
+
+#include <QIcon>
+#include <QList>
+#include <QString>
+
+#include "common/qt.h"
+#include "mmg-qt/util/util.h"
+
+QIcon
+Util::loadIcon(QString const &name,
+               QList<int> const &sizes) {
+  QIcon icon;
+  for (auto size : sizes)
+    icon.addFile(QString{":/icons/%1x%1/%2"}.arg(size).arg(name));
+
+  return icon;
+}

src/mmg-qt/util/util.h

@@ -0,0 +1,15 @@
+#ifndef MTX_MMGQT_UTIL_H
+#define MTX_MMGQT_UTIL_H
+
+#include "common/common_pch.h"
+
+class QIcon;
+class QString;
+template<typename T> class QList;
+
+class Util {
+public:
+  static QIcon loadIcon(QString const &name, QList<int> const &sizes);
+};
+
+#endif  // MTX_MMGQT_UTIL_H