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Category: Linux

Posts related to Linux development.

Modern, Visual Basic For Your Mac

Did you love Visual Basic? A lot of us did, but it’s 2021 and technology is ever-changing. As you look at the modern alternatives, consider Xojo. For over 20 years, Xojo has been the spiritual successor to VB, a rapid, cross-platform programming language and integrated development environment (IDE). Often called “VB for the Mac”, Xojo is more powerful than VB6 and more approachable than VB.NET. Two factors that are increasingly important because modern coders are everywhere, not just in the technology department.

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Why building apps for macOS requires a Mac

Over the years, the list of technologies upon which Apple depends has grown longer. These technologies provide a great deal of benefit both to developers and end users. Fortunately, Apple provides, supports and maintains the tools required to use these technologies at no cost to developers. Unfortunately, Apple only provides tools that run on macOS.

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Speeding up the Layout Editor

For more years than I’d like to admit, the Layout Editor has been slow in terms of dragging controls around. As you add more controls, it gets worse. For web layouts, it’s been even worse. That’s primarily because we have to draw everything for a web layout whereas for a desktop layout, the OS draws the controls for us.

In an engineering meeting, I mentioned a discussion I had with a user about the speed of the Layout Editor and Travis said he had recently been reminded of how slow it was too. While most of the time issues in Xojo are carefully calculated and prioritized for maximum bang for the buck (as we say around here), that’s not always how it happens. After the meeting, Travis decided to dive into the Layout Editor code and see what could be done to speed it up.

The results are pretty remarkable.

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GTK3 Can Be a Pain in the Themes

Starting with Xojo 2017r2, Linux apps use GTK3. Since Xojo uses native controls that means your app’s controls will use the theme of the Linux distribution the app runs on. This can sometimes mean that your app’s UI will not look exactly like what you designed in the Layout Editor because a theme may dramatically change control sizes and padding. This is a problem that can occur with any modern GTK3 app.

If this is a problem for your apps, there are a couple ways you can work around it.

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