Freaks City

Introduction This article continues from our previous work on stock search functionality. Here we will explore how to implement a customizable watchlist for stocks, featuring drag-and-drop reordering and right-click context menus. Note: This implementation does not include styling. For visual enhancements, CSS styles can be easily added. The wa ...

Common Controls and Properties Property Description enabled Controls whether the widget is interactive. True means the widget is active, false disables user interaction. geometry Position and dimensions, comprising x, y, width, and height. Coordinates are relative to the parent element. windowTitle Sets the widget's title bar text. ...

Qt abstracts the underlying operating system’s event handling into a consistent, cross-platform mesaging model based on signals and slots. This mechanism enables communication between objects without requiring them to be tightly coupled. A signal is emitted when a particular event occurs—such as a button click—while a slot is a function that re ...

Prerequisites Before starting, ensure you have: A compiled VTK library (built with CMake from VTK-9.3.0 or later) Qt 6.x installed on your system Qt Visual Studio Tools extension installed in Visual Studio 2022 Creating a Qt Widgets Application Open Visual Studio 2022 and create a new project. Select Qt Widgets Application from the Qt project ...

Overview This article details the implementation of a custom date range picker widget using Qt and C++. Unlike standard widgets like QDateEdit, this control allows users to select a specific time interval (start date to end date) through a custom-painted popup interface. The implementation relies heavily on QPainter for rendering, providing hig ...

Overview of Qt Text Editing WidgetsQt provides three primary text editing components, each designed for specific use cases:QLineEdit – A single-line text input widget suitable for forms, search boxes, and simple data entry.QTextEdit – A multi-line rich text editor supporting formatted text, images, tables, and other embedded content.QPlainTextE ...

The QObject class serves as the foundation for all Qt widgets and core components. This class provides the essential infrastructure for Qt's signal-slot mechanism, event processing, property system, and object hierarchy management. Header and Build Configuration #include <QObject> // In .pro file: QT += core Core Features Signal-Slot Me ...

The Graphics Stack and Windowing Systems When exploring options for high-performance 2D rendering, specifically after evaluating various game engines, developers often return to Qt. While engines like Cocos2d-x are popular, Qt offers a robust, mature ecosystem for graphics. To leverage Qt's rendering capabilities effectively—specifically for ha ...

Stacked Layout Manager The stacked layout manager (QStackedLayout) organizes interface elements in a stack-like manner: All widgets are managed along the vertical axis perpendicular to the screen Only one widget is visible at any given time The topmost widget in the stack is displayed to the user Key Characteristics Each widget maintains uni ...

Layout managres in Qt provide mechanisms to control how widgets resize and reposition when their container changes size. A key concept in this behavior is the stretch factor, which defines the relative proportion by which widgets grow or shrink. Understanding Stretch Factors By default, widgets managed by a layout expand equally when space bec ...