How to Use Qt6 Designer to Create Stunning GUI Applications
Qt6 Designer is a powerful tool that allows you to design and create graphical user interfaces (GUIs) for your Qt6 applications. Qt6 Designer lets you drag and drop widgets, layouts, and other elements onto a canvas and edit their properties and signals. You can also preview your GUI design and generate code for it in C++, Python, or QML.
In this article, we will show you how to use Qt6 Designer to create a simple calculator application. We will also explain some of the features and benefits of using Qt6 Designer for your GUI development.
Step 1: Install Qt6 Designer
The first step to use Qt6 Designer is to install it on your computer. You can do this by downloading and installing the Qt6 SDK from the official website of Qt. The Qt6 SDK includes Qt6 Designer and other tools and libraries for developing Qt6 applications.
Once you have installed the Qt6 SDK, you can launch Qt6 Designer from the start menu or the command line. You will see a welcome screen that shows you some options and tutorials for using Qt6 Designer.
Step 2: Create a New Project
The next step to use Qt6 Designer is to create a new project for your calculator application. You can do this by selecting \"File\" and then \"New\" from the Qt6 Designer menu. You will see a dialog box that asks you to choose a template for your project.
For this tutorial, we will choose the \"Widget Application\" template, which creates a basic GUI application with a main window. You can also choose other templates such as \"Dialog Application\", \"Qt Quick Application\", or \"Qt for Python Application\" depending on your needs.
After choosing the template, you will need to enter some information about your project, such as the name, location, class name, base class, and language. For this tutorial, we will name our project \"Calculator\", save it in our desktop folder, use the default class name and base class, and choose C++ as the language.
When you are done, click on \"Next\" and then \"Finish\" to create your project. You will see a main window with an empty central widget in the Qt6 Designer window.
Step 3: Design Your GUI
The final step to use Qt6 Designer is to design your GUI for your calculator application. You can do this by adding widgets, layouts, and other elements to your main window using the widget box and the property editor.
The widget box is a panel that shows you all the available widgets that you can use in your GUI design. Widgets are graphical components that provide functionality and interactivity to your application, such as buttons, labels, text boxes, sliders, etc. You can drag and drop widgets from the widget box onto your main window or any other widget.
The property editor is a panel that shows you all the properties and signals of the selected widget. Properties are attributes that affect the appearance and behavior of the widget, such as size, color, text, font, etc. Signals are events that occur when the widget is interacted with by the user or the program, such as clicked, changed, entered, etc. You can edit the properties and signals of the widget using the property editor.
For this tutorial, we will design our GUI as follows:
Add a grid layout to the central widget by dragging and dropping it from the widget box.
Add a line edit widget to the top row of the grid layout by dragging and dropping it from the widget box. This will be our display for showing the input and output of our calculator.
Add four push button widgets to each column of the second row of the grid layout by dragging and dropping them from the widget box. These will be our buttons for clearing (C), deleting (DEL), dividing (/), and multiplying (*) our input.
Add four push button widgets to each column of the third row of the grid layout by dragging and dropping them from the widget box. These will be our buttons for subtracting (-), adding (+), equaling (=), and decimal point (.) our input.
Add four push button widgets to each column of the fourth row of the grid layout by dragging and dropping them from 06063cd7f5