Posts relating to software development.
Python's Flying Circus

Posted by cwright on 2008.02.22 @ 15:35

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Python Logo

Lately I’ve been working on integrating (or, more accurately, attempting to integrate) the Python scripting language into some plugins for an application we develop plugins for. We’ve wrapped many libraries with varying levels of success, so this one wasn’t going to be much different. Or, so we thought. [more...]

Zero Grams of Trans Fat Binaries

Posted by cwright on 2007.12.19 @ 01:36

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tons of xcode build targetsPeople like their applications to work. Even better, they like them to work, even when things change. For the WinTel world, this isn’t a big deal (Vista aside ;), because the underlying CPU architecture hasn’t really changed, from a program’s point of view, in the past two decades. Unless you have a weird program that’s designed for AMD’s 3DNow! instruction set and you switch to an Intel CPU, or perhaps an application designed for a more esoteric old SIMD architecture, your application should run just fine (as long as your Operating System is ok with it).

Mac OS X doesn’t have the luxury of working on the same underlying CPU though, so things need to be handled a little bit differently. The solution Apple came up with was [more...]

iPhoto-Thunderbird Bridge

Posted by cwright on 2007.08.22 @ 06:59

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iPhoto logoFor years, iPhoto users have been stuck using a limited number of email clients to send their photos easily. This was mostly remedied by the iPhoto Mailer Patcher, but it left out non-applescript aware applications because, after all, iPhoto uses applescript to interface with them. One of the more notable omissions is Thunderbird.

Finally, this void has also been filled, via the iPhoto Thunderbird Bridge. It’s still quite primitive, but all the basics are there for iPhoto-Thunderbird integration.

If you’re an iPhoto/Thunderbird user, give it a whirl.

Leaky NSSpeechSynthesizer

Posted by cwright on 2007.07.23 @ 17:34

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NSSpeechSynthesizer, the Cocoa class responsible for giving applications a voice under OS X, is leaky. Creating and destroying thousands of instances of this class slowly consumes all the available memory in a system, leading to degrading performance and eventual application instability.

The disappointing part is that this bug was first noticed almost two years ago. [more...]

Announcing: kineme.net

Posted by cwright on 2007.07.10 @ 17:24

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screenshot of kineme.netThe Kineme Quartz Composer patches now have a proper home at http://kineme.net/, including forums, bug reports, comments, and feature requests — complete with voting!

Along with the new site, a few new patches are available as well based on requests from users.

NSURLConnection's sendSynchronousRequest enforces minimum 30 second timeout? NSURLConnection's sendSynchronousRequest enforces minimum 30 second timeout?

Posted by smokris on 2007.07.10 @ 16:47

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While writing the new Image Downloader (Blocking) QC patch for CoreMelt, I ran into what appears to be a bug in Mac OS X’s NSURLConnection framework — if you construct an NSURLRequest and specify a timeout of less than 30 seconds, it’s ignored when you perform a [NSURLConnection sendSynchronousRequest:returningResponse:error:]. The request takes at least 30 seconds to time out, contrary to what the documentation suggests..

Steps to Reproduce: [more...]

Data Integrity: Resurrection

Posted by cwright on 2007.07.10 @ 16:35

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flame signFaced with a need to recover images from Robert’s camera after a defective card-reader nuked the filesystem superblock, a quick utility came to mind. Nuked superblocks mean no file allocation table. It means no metadata. But it does not mean no data.

  • Target medium: 1GB XD card from a digital camera.
  • Data to recover: JPEGs. Lots of them.

Whipping out some jpeg-format-and-filesystem-jutsu, here’s the solution (for less than that $20 shareware recovery utility): [more...]

How to make Pop-Up Menus in Custom Quartz Composer Patches How to make Pop-Up Menus in Custom Quartz Composer Patches

Posted by smokris on 2007.07.05 @ 13:26

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screenshot of a custom Quartz Composer patch's pop-up menuMaking pop-up menus in custom Quartz Composer patches is actually surprisingly easy.

This release is only compatible with Tiger (10.4).
Please see kineme.net for Leopard-specific informations.
  1. Set up a QCIndexPort input. QCIndexPorts provide values from 0 to whatever max you specify using - (void)setMaxIndexValue:(unsigned int)max;.
New Custom Quartz Composer Patch Xcode Template New Custom Quartz Composer Patch Xcode Template

Posted by smokris on 2007.06.29 @ 17:02

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Create a new Xcode project with this templateHere’s a new version of the Xcode Template for Custom Quartz Composer Patches.

Changes:

  • Rebuilt from scratch — no longer depends on QCJP’s work — and, by extension, the Creative Commons “Attribution-NonCommercial-ShareAlike” license. My Xcode Template, as of version 0.2, is released into the Public Domain. You are free to use it for whatever — commercial or non-commercial.
  • QCJP’s headers were replaced with headers assembled directly from the QuartzComposer framework — now located in the QuartzComposer/ folder of the project. I’ve exported a few more headers than QCJP had constructed, so there’s some added functionality (namely, image input/output ports).
  • The project now automatically assigns an icon to the patch bundle, and installs it in /Library/Graphics/Patches/ for you each time you build, for faster edit-build-test workflow.
This release is out-of-date.
Please see the latest version.

Download the installer, version 0.2.

See the old version’s blogpost for some additional instructions and user comments.


Steve Mokris is a developer at Kosada, Inc.

The Secret Life Of a Patch

Posted by cwright on 2007.05.15 @ 18:38

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Thunderbird.appMozilla is an open source project that produces some widely used software. Their most noteworthy product to date is Firefox, a standards-compliant web browser.

Being open source, their projects and products are often enhanced by the contributions of others. These contributions often come in the form of a “patch” — a file that tells the computer what to change in the source code to add the contribution. [more...]