Struggling with C++ accessibility features using Qt - Dynamic font size adjustment not working
I'm having a hard time understanding I tried several approaches but none seem to work... I'm working on a personal project and Currently developing a desktop application that aims to improve accessibility for users with visual impairments... We are using Qt 5.15 for our UI, and the goal is to implement dynamic font size adjustments based on user preferences. However, modifications to the font size do not reflect as expected on all widgets. Here's a snippet of the code where I've set up the font size adjustment: ```cpp #include <QFont> #include <QWidget> class MyWidget : public QWidget { Q_OBJECT public: MyWidget(QWidget *parent = nullptr) : QWidget(parent) { // Initial font size setFontSize(12); } void setFontSize(int size) { QFont font = this->font(); font.setPointSize(size); this->setFont(font); adjustSize(); // Trying to resize widget accordingly } }; ``` I’ve tried calling `adjustSize()` after setting the new font size to ensure the widget resizes correctly, but it doesn’t seem to work for all components like `QLabel` and `QLineEdit`. Moreover, I attempted to use Qt's `QSettings` to store user preferences for font sizes. The saving and loading are functioning perfectly, but the visual change isn't reflected unless I manually refresh the UI. I’ve also explored signals and slots to trigger the font adjustment dynamically when a user selects a new font size from a dropdown menu. Here’s the relevant portion: ```cpp connect(fontSizeComboBox, &QComboBox::currentTextChanged, this, &MyWidget::onFontSizeChanged); void onFontSizeChanged(const QString &size) { setFontSize(size.toInt()); } ``` Despite these efforts, the UI isn't updating correctly, particularly when switching between smaller and larger font sizes. Has anyone successfully implemented dynamic font size adjustments in a Qt application? Any tips on ensuring that all widgets reflect the changes immediately would be greatly appreciated. Maybe I’m missing an important part of the signal-slot mechanism or a specific configuration setting? What am I doing wrong? I recently upgraded to C++ LTS. I'm working with C++ in a Docker container on macOS. I'm open to any suggestions.