Hacking Quartz

Exposed writes "Meaty interview with Rich Wareham who is known to Linux users for his libdvdnav library which is used by Xine and other linux players. On OS X he created Desktop Manager, the GPL solution for VirtualDesktops on the Mac. Highlights are secret APIs in OS X for VirtualDesktops, who steals GPL source and why beginner programmers are at a disadvantage now."

Comments

Many people feel Expose serves well enough

[SuperKendall]

For me Expose works well enough as a virtual desktop - I have a lot of windows opened, but when I used to use a virtual desktop on UNIX most of the rooms would be pretty much one thing anyway - like a room for browsing. Now I can just hit F10 on a browser and see all the current browser Windows.

I think Apple has just not focused any energy on an "Apple Way" to manipulate virtual desktops. It's a tricky UI problem and probably the work needed to keep programs in different rooms is too "virtual" for many people. Note that he did state Apple made changes that were seemingly very favorable to the writing of DesktopManager, so it would seem the folks at Apple are at least nuturing the concept - and if they ever do include such a program I don't think you'll see any sour grapes from this guy as he is already giving it away.

I did like his idea for "Window Wells" (even though I think that was the interviewers term) a lot, so instead of virtual desktops being really virtual you have "clumps" of windows on screen (which are your virtual desktops) that you can click on like small expose'ed windows to expand the desktop. I'm still not sure of the best way to get windows in or out of these desktops.

Re:Many people feel Expose serves well enough

[geordieboy]

I couldn't use Expose as a replacement for virtual desktops. I tend to put separate projects on each different desktop, not windows of the same type. So for example I will have TeX files and a DVI viewer for a paper I am working on on desktop 1, C code and a plotting program on another, etc. etc.
It would be much less efficient for me to collect all the files
I need using Expose. I tend to use Expose as a cute way to switch between say 5 Safari windows. It would be hideous trying to organize 50 windows with it.

Visual Basic is not bundled and manualed

[SuperKendall]

But how many computers ship with VB, and a manual which shows you how to write cool little programs in VB? I really can't think of ANY!!

Even OS X, which does at least ship with developer tools in every box really makes no mention of them.

The thing about computers before was that it was super easy to just write ten lines of code and have something happen. Now you have to hunt down an IDE or an editor, and chances are you're writing a lot more than ten lines even for Hello World! The computers now have (as he said) a much higher barrier to entry of manipulation, though of course you can do a million times more if you do break that barrier - so I'd say the only hope is that the rewards of crossing that barrier are enough to lure people over.

I agree with him that this is a real problem, far fewer people are exposed to the manipulation of computers at a young age and instead computers are treated as black boxes, not to be touched. Cars are headed the same way to some extent but there already was a much more powerful and widespread culture built up around people and engines, so it's a lot harder for that to vanish. I wish that more people would be able to think of computers as more like cars and less like toasters.

This is only worrying

[Anonymous Coward]

If apple's apps then call these APIs. It is possible that these APIs are incomplete, experimental, or internal to the OS. If Apple documents these APIs, that means they're obligated to support them and keep them relatively stable between OS releases, etc...

This isn't quite like the Windows situation for two reasons.

One, the problem in Windows is mostly that MS's hidden APIs are for (1) very important and basic things and (2) used extensively by MS's in-house apps.

Two, Apple's been very good not just about keeping competitors on a level API playing field with Apple's apps, they've been very good about actually moving functionality OUT of Apple's inhouse apps and into public APIs. Witness searchlight services, or CoreGraphics. These were functionalities in Apple inhouse apps that Apple decided would be useful to other people, so they sucked it into the OS and made a public API for it...

Steals GPL source???

[nacturation]

Highlights are secret APIs in OS X for VirtualDesktops, who steals GPL source...

Where is this in the article? I read the whole thing, then went back and searched for every occurrence of "steal" (zero results) and "GPL". The only part that mentions Virtual Desktops is that CodeTek can't use the Desktop Manager source in their closed source app because it's GPLed. The relevant section is:

"I still get some emails accusing me of being petty and small minded for GPL-ing Desktop Manager since CodeTek can't easily use my code. That is silly since they are quite capable of re-implementing Desktop Manager in a far better way using my techniques. I haven't tried (nor could I probably) claim control over how people use the APIs I discovered."

Nowhere does this claim that Virtual Desktops is using, let alone stealing, anything from his source. Unless I missed something here, I fail to see how such a statement is anything more than libel.