Tag Archives: Cocoa

Key-Value Observing Done Right (again)

Posted on August 16, 2009 by schwa

Mike Ash posted a great article about problems with Cocoa’s Key Value Observing and provided a better set of classes to work with KVO: MAKVONotificationCenter. I’ve been using Mike’s code in various projects over the last few months and am … Continue reading →

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TouchMap

Posted on October 5, 2008 by schwa

I was going to make a more in-depth posting about TouchMap, but then something kind of big happened. The code is however in the TouchCode google code repository. So have at it. (You’ll probably want to check out all of … Continue reading →

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TouchMap Teaser

Posted on October 1, 2008 by schwa

A quick teaser for TouchMap. I’m hoping to release this on TouchCode later today. TouchMap.mov

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AcornImage

Posted on February 19, 2008 by schwa

It was just your typical InterfaceBuilder 3 window… with your vanilla NSImageView… referring to an image file within an Xcode project… Holy Cow! An Acorn file? Does that mean I can use Acorn files directly in Interface Builder 3? Does … Continue reading →

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R.I.P Toxic Progress Indicator

Posted on October 30, 2007 by schwa

Thanks to Matt Gemmell for pointing out that Apple has finally provided a pie chart style NSProgressIndicator for the circular/determinate modes. This style is new to Leopard. This means my Toxic Progress Indicator class can be retired, at least for … Continue reading →

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SpaceNavigator controlled Lego Mindstorms NXT

Posted on September 26, 2007 by schwa

It’s my second year of coaching a First Lego League team. The experience has been fantastic, I’m teaching 4th and 5th grade children about robots and computers, and teaching them to build and program their own robots. This year the … Continue reading →

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The Intersection of Cool and Awesome

Posted on September 25, 2007 by schwa

3Dconnexion (a division of Logitech) produces the coolest named device ever: The 3Dconnexion SpaceNavigator . This is a 3D input device with 6 degrees of freedom, meaning you can move and rotate it through the X, Y and Z planes. … Continue reading →

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‘Discrete’ NSLevelIndicatorCell too slow

Posted on June 24, 2006 by schwa

I recently needed to embed the ‘Discrete’ variant of the NSLevelIndicatorCell into an NSTableView. The discrete cell looks like this: Unfortunately adding the cell caused drawing of the table’s window to slow to crawl. The spinning beachball of death would … Continue reading →

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Grab that Invocation

Posted on June 23, 2006 by schwa

CInvocationGrabber is a Cocoa class to help with creating NSInvocation objects. NSInvocation objects are Cocoa’s equivalent of “functors” and are extremely handy. But unfortunately creating them is often a pain. For example, take the following code showing how to create … Continue reading →

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Toxic Progress Indicator Updated

Posted on June 21, 2006 by schwa

Thanks to Daniel Jalkut for submitting a patch to Toxic Progress Indicator. The patches fixes a couple of silly bugs with setMinValue/setMaxValue and also makes the code a little bit more generic. I’ve updated subversion with the patch, which is … Continue reading →

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