fix: warnings when compiling with Qt 6.10 (#6422)

src/widgets/dialogs/SettingsDialog.cpp

@@ -2,6 +2,7 @@
 
 #include "Application.hpp"
 #include "common/Args.hpp"
+#include "common/QLogging.hpp"
 #include "controllers/commands/CommandController.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
 #include "singletons/Settings.hpp"
@@ -47,7 +48,11 @@ SettingsDialog::SettingsDialog(QWidget *parent)
     this->resize(915, 600);
     this->themeChangedEvent();
     QFile styleFile(":/qss/settings.qss");
-    styleFile.open(QFile::ReadOnly);
+    if (!styleFile.open(QFile::ReadOnly))
+    {
+        assert(false && "Resources not loaded");
+        qCWarning(chatterinoWidget) << "Resources not loaded";
+    }
     QString stylesheet = QString::fromUtf8(styleFile.readAll());
     this->setStyleSheet(stylesheet);
 

src/widgets/settingspages/AboutPage.cpp

@@ -158,7 +158,11 @@ AboutPage::AboutPage()
             auto l = contributors.emplace<FlowLayout>();
 
             QFile contributorsFile(":/contributors.txt");
-            contributorsFile.open(QFile::ReadOnly);
+            if (!contributorsFile.open(QFile::ReadOnly))
+            {
+                assert(false && "Resources not loaded");
+                qCWarning(chatterinoWidget) << "Resources not loaded";
+            }
 
             QTextStream stream(&contributorsFile);
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
@@ -265,7 +269,12 @@ void AboutPage::addLicense(QFormLayout *form, const QString &name,
             auto *edit = new QTextEdit;
 
             QFile file(licenseLink);
-            file.open(QIODevice::ReadOnly);
+            if (!file.open(QIODevice::ReadOnly))
+            {
+                assert(false && "License not found");
+                qCWarning(chatterinoWidget)
+                    << "License not found" << licenseLink;
+            }
             edit->setText(file.readAll());
             edit->setReadOnly(true);
 

src/widgets/settingspages/CommandPage.cpp

@@ -12,6 +12,7 @@
 #include <QColor>
 #include <QHeaderView>
 #include <QLabel>
+#include <QMessageBox>
 #include <QPushButton>
 #include <QStandardItemModel>
 #include <QTableView>
@@ -105,9 +106,15 @@ CommandPage::CommandPage()
         auto *button = new QPushButton("Import commands from Chatterino 1");
         this->view->addCustomButton(button);
 
-        QObject::connect(button, &QPushButton::clicked, this, [] {
+        QObject::connect(button, &QPushButton::clicked, this, [this] {
             QFile c1settings(c1settingsPath());
-            c1settings.open(QIODevice::ReadOnly);
+            if (!c1settings.open(QIODevice::ReadOnly))
+            {
+                QMessageBox::warning(
+                    this, "Chatterino 1 Importer",
+                    "Failed to read settings: " + c1settings.errorString());
+                return;
+            }
             for (const auto &line :
                  QString(c1settings.readAll())
                      .split(QRegularExpression("[\r\n]"), Qt::SkipEmptyParts))