I get this question a lot - "How do I change the background color of a single cell in a treeview?" If you look around you'll see a couple of ways of doing this using display callbacks and other highly processor and memory intensive methods - but there's a much simpler way.

She explains how the tree views are rendered (with the GtkTreeView component, of course) via a "cell renderer" with different variations based on the contents of the cell - each with their own properties. Her example code illustrates how to manipulate this by making the tree object and attaching other columns to it with custom background properties. A quick screencast is included to show it in action.

Quick note; We released PhD0.1RC1 today o/ Building the php.net documentations has never been as easy or as fast. [...] It takes less than 2 minutes (on my two years old Precision M70 laptop) to render the entire php.net documentations in three formats.

He includes instructions on fetching the packages needed/documents to compile, modify the configuration files and installing and rendering the php.net documentation. They've also set up a special mirror of the PHP documentation with experimental builds of the docs.

I mentioned recently that I was looking for an interesting PHP project. This evening I remembered an idea I had a while ago to make a 3D renderer in PHP (and if anyone's tempted to ask - "because I can" ). I did a bit of reading on old 3D engines, as I didn't want something modern and slow, and found out that the "raycaster" rendering used in Wolfenstein 3D is ridiculously easy to implement.

A few hours later and it's up and running I've not run any proper speed tests yet, but the images load up pretty much instantaneously. I have a couple of ideas of what this could be used for, so watch this space.

Screenshots are included in the post as well as tons of comments from all about the web (it was also linked on digg). He hasn't released the source for it yet, but it'll still be an interesting project to keep an eye on. In the meantime, there's always Kore Nordmann's Image_3D project to look into.