friz and the Illusion of Life

friz—a Flexible Animation Controller for JUCE

As is often the case, I found myself working on a personal project and had some UI elements that really wanted to have some life to them on the screen.

I tucked into the JUCE documentation expecting to see something that I could use to easily add some personality to the interface, and…didn’t find what I was looking for. There’s a ComponentAnimator class that supports moving a single component from one set of coordinates/bounds to another linearly, and also modify the component’s alpha value to have it fade in or out.

I was looking for something…more expressive.

(more…)

Incubator Kick-off

Art+Logic has kicked-off its first software Incubator project, and I was selected to handle the development effort. After meeting Dr. Scott Hawley and being briefed on the technique he uses for classification of audio files using neural networks (NN), and determining current and future features, we were ready to begin the project. While we go through this process, I’ll be documenting it on this blog. (more…)

A C++ Class Factory for JUCE

The Problem

So, I’m working on a side project (as one does), and reach the point in development where I need to be able to take a tree of objects that all share a common base class and persist them to and from disk.

I prefer using plain text files to binary (for a bunch of different reasons, most of them enumerated in the original The Pragmatic Programmer book), so the problem really boils down to:

At runtime, I need to be able to convert a string containing the name of a class into a pointer to an object of the corresponding C++ class.

If you do like I did, and go to the shelf to see what the old Gang of Four Design Patterns book has to say on the matter, maybe you’d have been underwhelmed, too. (more…)

An RPC Framework for JUCE

JUCE image

Recently, I’ve been working on a project for a long-time client who came to us with a request that we haven’t seen in a while–we were tasked with taking their existing application written in C++ using the JUCE application framework into two separate applications:

  • A Windows Service Application that will start itself automatically at boot time to continually be processing streams of audio and network data using their proprietary hardware
  • A GUI application that connects to the service app doing the processing for monitoring and control.

Since the application was already cleanly written using the Model/View/Controller architecture, what I really wanted to have was a Remote Procedure Call layer that would let me chop the existing Controller object into two pieces:

  • an API half that is called by the UI code exactly as it’s already being called
  • an “engine”/server half that actually houses the logic to perform the work of the application.

…that would be connected together over some sort of an interprocess link, most likely sockets. (more…)