Book Image

Delphi GUI Programming with FireMonkey

By : Andrea Magni
4 (1)
Book Image

Delphi GUI Programming with FireMonkey

4 (1)
By: Andrea Magni

Overview of this book

FireMonkey (FMX) is a cross-platform application framework that allows developers to create exciting user interfaces and deliver applications on multiple operating systems (OS). This book will help you learn visual programming with Delphi and FMX. Starting with an overview of the FMX framework, including a general discussion of the underlying philosophy and approach, you’ll then move on to the fundamentals and architectural details of FMX. You’ll also cover a significant comparison between Delphi and the Visual Component Library (VCL). Next, you’ll focus on the main FMX components, data access/data binding, and style concepts, in addition to understanding how to deliver visually responsive UIs. To address modern application development, the book takes you through topics such as animations and effects, and provides you with a general introduction to parallel programming, specifically targeting UI-related aspects, including application responsiveness. Later, you’ll explore the most important cross-platform services in the FMX framework, which are essential for delivering your application on multiple platforms while retaining the single codebase approach. Finally, you’ll learn about FMX’s built-in 3D functionalities. By the end of this book, you’ll be familiar with the FMX framework and be able to build effective cross-platform apps.
Table of Contents (18 chapters)
Section 1: Delphi GUI Programming Frameworks
Section 2: The FMX Framework in Depth
Section 3: Pushing to The Top: Advanced Topics

Understanding the TRectangle class

Rectangles are quite ubiquitous in modern user interfaces (UIs). Most buttons are rectangles (with some variations), and controls and containers are often rectangular in shape. The TRectangle shape can come in handy in a number of situations. In the Understanding shapes section, we covered how to use the Stroke and Fill properties to deeply customize the visuals of TRectangle with ease.

As a descendant class of TShape, TRectangle introduces some properties we will now focus on:

  • Sides: This property's value represents a set of TSide (Top, Left, Bottom, and Right) that can be used to determine which sides are actually to be drawn for the rectangle.
  • Corners: This value is a set of TCorner (TopLeft, TopRight, BottomLeft, and BottomRight) that can be used to determine which corners will actually be drawn for the rectangle.
  • CornerType: The value for this property can be one entry of the TCornerType type (Round...