Book Image

Expert Delphi - Second Edition

By : Marco Cantù, Paweł Głowacki
Book Image

Expert Delphi - Second Edition

By: Marco Cantù, Paweł Głowacki

Overview of this book

Master Delphi, the most powerful Object Pascal IDE and versatile component library for cross-platform native app development, by harnessing its capabilities for building natively compiled, blazingly fast apps for all major platforms, including Android, iOS, Windows, Mac, and Linux. Expert Delphi begins with a quick overview of Delphi, helping you get acquainted with the IDE and the Object Pascal language. The book then quickly progresses to more advanced concepts, followed by the architecture of applications and the FireMonkey library, guiding you through building server-side services, parallel programming, and database access. Toward the end, you’ll learn how to integrate your app with various web services and deploy them effectively. By the end of this book, you’ll be adept at building powerful, cross-platform, native apps for iOS, Android, Windows, and macOS—all from a single code base.
Table of Contents (21 chapters)
Free Chapter
1
Part 1: Building Blocks
6
Part 2: Going Mobile
12
Part 3: From Data to Services
19
Index

The power of parenting

One of the nicest things about FireMonkey’s architecture is parenting. Essentially, any FireMonkey component can contain or “be a parent” to other components. What’s cool about this is that all children inherit different properties of their parents, such as position, scale, and rotation. This also provides a lot of possibilities when it comes to building user interfaces since we can create composite controls without having to declare completely new classes.

Shapes

A lot of low-level drawing code can be avoided by using different controls from the Shape category on the palette. There are lines, circles, ellipses, rectangles, pies, paths, and more. They encapsulate drawings on the canvas, so you don’t need to write much code.

Let’s try to recreate our Sun visualization with shapes to better compare these two possible approaches to drawing. Add a new Form HD element to the project. Drop a TRectangle component on...