Blog | Pages of Interest » Objective C

Listing Methods at Runtime in Objective C

Michael Robinson — Thu, 05 Jan 2012 07:30:30 +0000

Before getting into creating my next Rapid Weaver plugin, I needed to do some experimentation to make sure what I wanted to achieve was possible. Wanting to manipulate some aspects of RWPage objects, I first required a list of methods for the RWPage class. Thanks to Matt Gallagher’s IMP of the current method entry, I [...]

Sliding Modal Dialogs in Cocoa Applications & Bundles Example project available on GitHub – CIModalSheetDialog One thing I...
Using NSError to Increase Robustness & Useability It wasn’t until we (long ago) decided to use the...
Extracting hex value from NSColor Example project available on GitHub – CINSColor+Hex This category on...

Extracting hex value from NSColor

Michael Robinson — Mon, 05 Dec 2011 11:39:49 +0000

Example project available on GitHub – CINSColor+Hex This category on NSColor allows one to get or set an NSColor’s colour using hex values. Intitialising an NSColor with a hexadecimal colour: 1 2 3 4 5 6 7 8 @try { // Both shorthand and full forms of hexadecimal colours are accepted [colorWell setColor:[NSColor colorWithHex:@"#F00"]]; [colorWell [...]

Tile an NSImage Within an NSBezierPath Another snippet I had to write during the great Slider...
Fill a Path With A Scaled Image, Ignoring Image Proportions While continuing to rebuild Slider’s background image features, I was...
Accessing Primitives From NSDictionarys in Cocoa… This “gotcha” had me scratching my head for a little...

Using NSError to Increase Robustness & Useability

Michael Robinson — Fri, 02 Dec 2011 06:10:09 +0000

It wasn’t until we (long ago) decided to use the hardcore ‘E_ALL‘ error reporting level in our development environment that I started to realize the value of being overly paranoid when coding. Long ago I recall I did this, but I think PHP made me a little lazy – it’s a very forgiving language, so [...]

Detecting Presence of a Framework Within an NSBundle (Plugin) Introduction Jump to Tutorial In light of Cocoa Warning: Implicitly...
Tile an NSImage Within an NSBezierPath Another snippet I had to write during the great Slider...
More Usability-Oriented Method for Disabling an NSTabViewItem Jump to tutorial I was unable to find a way...

Sliding Modal Dialogs in Cocoa Applications & Bundles

Michael Robinson — Fri, 25 Nov 2011 21:15:32 +0000

Example project available on GitHub – CIModalSheetDialog One thing I wanted to be able to use during the development of Slider 2 was modal dialogs that slide out from the top of Rapid Weaver. This was troublesome for me as Slider 2 is a bundle that runs within Rapid Weaver – not as a standalone [...]

More Usability-Oriented Method for Disabling an NSTabViewItem Jump to tutorial I was unable to find a way...
Return an NSMutableString as NSString Avoiding “Uncaught Error 11″ with Cocoa Another stumbling block on the road to Slider completion was...
Accessing Primitives From NSDictionarys in Cocoa… This “gotcha” had me scratching my head for a little...

More Informative NSLog alternative!

Michael Robinson — Mon, 12 Sep 2011 10:13:59 +0000

After becoming used PHP’s very many debugging and error logging tools, I started to find NSLog somewhat lacking… When I finally bothered to search for an alternative, and ended up with CCLog, A Variation on NSLog(). CCLog shows much more information, quoting the developer: My preferred output would be capable of doing this: Show on [...] No related posts.

More Usability-Oriented Method for Disabling an NSTabViewItem

Michael Robinson — Sun, 14 Aug 2011 06:42:29 +0000

Jump to tutorial I was unable to find a way to easily disable an NSTabViewItem – before implementing the method described below, I achieved this by simply returning “NO” from the “shouldSelectTabViewItem” delegate method. I don’t like this method as I feel that from the user’s perspective: The reason they can’t click the tab item [...]

Sliding Modal Dialogs in Cocoa Applications & Bundles Example project available on GitHub – CIModalSheetDialog One thing I...
Subclassing NSTextField to Allow Only Numbers Example project available on GitHub – CINumberField Yes, I know...
Tile an NSImage Within an NSBezierPath Another snippet I had to write during the great Slider...

Detecting Presence of a Framework Within an NSBundle (Plugin)

Michael Robinson — Sun, 31 Jul 2011 02:04:54 +0000

Introduction Jump to Tutorial In light of Cocoa Warning: Implicitly declaring C library function ‘objc_getClass’, this tutorial has been updated. Recently, it was brought to my attention that my method of including a particular framework (Sparkle) inside a plugin was wrong – the way I was doing it (blindly including the framework as if my [...]

Cocoa Warning: Implicitly declaring C library function ‘objc_getClass’ In Slider 2, I needed to check for the presence...
Limit NSNotifications to Notify Within NSBundle Instances Only NSNotifications are wonderful. So long as when using them within...
Using PNG Transparency + the jQuery Colour Change Plugin A tutorial describing how to achieve the "colour change on...

Rotate NSImage in an NSImageView

Michael Robinson — Tue, 08 Dec 2009 23:41:34 +0000

As soon as I implemented this I realised how much of a pain it would be to copy out the arrow images, rotate them in an external program, then copy them back in. So I put some buttons next to the arrow image wells that allow the user to rotate the arrows within Slider itself.

Tile an NSImage Within an NSBezierPath Another snippet I had to write during the great Slider...
Fill a Path With A Scaled Image, Ignoring Image Proportions While continuing to rebuild Slider’s background image features, I was...
The Mutations of Slider’s Tab Option Pane During the past week, I’ve been working on Slider’s new...

How to Prevent Noisy NSBitmapImageReps

Michael Robinson — Tue, 10 Nov 2009 01:00:34 +0000

Images generated for Slider’s background and tabs contained a lot of noise – random ugly pixels throughout the images. I was unsure why this was happening, so I asked the Cocoa-Dev mailing list. Rob Keniger kindly replied with the following solution: “An NSBitmapImageRep is not guaranteed to be empty when you create it and in [...]

Tile an NSImage Within an NSBezierPath Another snippet I had to write during the great Slider...
Fill a Path With A Scaled Image, Ignoring Image Proportions While continuing to rebuild Slider’s background image features, I was...
Rotate NSImage in an NSImageView As soon as I implemented this I realised how much...

The Mutations of Slider’s Tab Option Pane

Michael Robinson — Mon, 09 Nov 2009 08:46:15 +0000

During the past week, I’ve been working on Slider’s new Tab option pane. I took screen shots before making changes to the layout. Here they are: I hope I’m not tempted to change things around again… I really need to get the backend going now! Related posts: Slider Progress: Slider Styling Option Pane During the [...]

Slider Progress: Slider Styling Option Pane During the great rewrite, I’ve been trying to focus on...
Feel Like A Cup of Cocoa? I released the Smart Buttons last night, and displayed them...
Fill a Path With A Scaled Image, Ignoring Image Proportions While continuing to rebuild Slider’s background image features, I was...