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 interpolation modifier functions

Earlier, we discussed how interpolation works and how it's implemented in the FMX framework. As you may have experienced, these topics can be hard to follow without some visual examples (possibly live), but at the same time, a more mathematical approach can be more precise. This section intends to look at both sides of the coin by using images to explain the mathematical concepts behind interpolations.

The following screenshots show the different behaviors of all the interpolation modifier functions. The large red circle is positioned at the final spot, while the smaller red dots are used to represent the trajectory that was followed during the animation.

Please note that the Opacity property of these dots has been set incrementally (reflecting the normalized time) so that you can follow the dynamic while looking at the point's opacity value. For each function, three screenshots have been provided. The left one is for when...