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

LiveBindings events

Most of the examples we've looked at so far involving LiveBindings have been zero-code examples. This is not mandatory and there are situations where you may need to perform some actions (execute some code) tied to data binding.

For example, TLinkListControlToField provides some convenient events that you can hook up to apply further customization to your UI. This code will not be executed at design time, only at runtime (this means you are not going to see changes in the Form Designer window). A typical example is assigning an OnFillingListItem event in order to format some values according to a certain rule. The following code can be used to render the HireDateText appearance item with a red font color when the HireDate value is less than 1990:

var
LTextObject: TListItemText;
LItem: TListViewItem;
begin
LItem := AEditor.CurrentObject as TListViewItem;
LTextObject := LItem.Objects.FindDrawable('HireDateText') as TListItemText;
if Assigned(LTextObject...