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)
1
Section 1: Delphi GUI Programming Frameworks
4
Section 2: The FMX Framework in Depth
13
Section 3: Pushing to The Top: Advanced Topics

Managing styles – the TStyleManager component

In this section, we are going to focus on aspects related to style definition while the application is running (at runtime).

We have seen in this chapter that an FMX component is visually rendered through its style definition. This style definition is matched by name following a naming convention (for example, TButton has buttonstyle, TEdit has editstyle, and more) and an override mechanism (the StyleLookup property). The lookup of the definition is done against the (optional) TStyleBook instance referenced by the StyleBook property of the component's parent form and against the application style set for the application.

There is a dedicated class in FMX to deal with the application-wide style TStyleManager declared and implemented in the FMX.Styles.pas unit. This class provides some functionalities you may find handy when dealing with styles:

  • It can enumerate style resources embedded within the application, through the EnumStyleResources...