TweetFollow Us on Twitter

Jun 98 Viewpoint

Volume Number: 14 (1998)
Issue Number: 6
Column Tag: Viewpoint

June 1998 Viewpoint

by Nicholas C. "nick.c" DeMello <editor@mactech.com>

Creating great software requires an odd mixture of humility and arrogance. The art of programming involves studying complex behaviors, accomplishing them with efficient logical processes, and expressing that logic so simply and clearly that even a machine can enact it. For someone to consider teaching a hunk of silicon the skill of piloting an airplane, the subtleties of quantum mechanics, or even the simple trick of announcing "hello world"... well, a little arrogant confidence is required. But the best among us temper their confidence with the realization that there is no profit in reinventing the wheel, that we can never foresee all the possible applications of our product, and that bugs happen. The outrageous confidence needed to try something untried and the necessary caution required to turn that something into reliable and efficient code is epitomized by the Mac OS and the modular, extendible program design underlying it. In this issue, MacTech presents a number of articles on modular software design and plug-in technologies. I want to introduce just a few of them here.

It's been estimated that the Lisa project, the precursor of today's Macintosh, took over 200 man years to accomplish. Lisa owed significantly to ground breaking work in the design of the WIMP (windows, icons, mouse, pointer) GUI developed at Xerox. While the WIMP development at Xerox's Palo Alto research center (PARC) was occurring, the term "object-oriented" was being coined in the same facility. PARC developed the Smalltalk language - arguably the purest representation of the object-oriented ideal - at the same time they were working on the WIMP interface. The influence of object oriented design on Xerox's GUI is clear. That same influence affected Lisa and is an integral part of today's Mac OS.

The Macintosh operating system was broken down into a multitude of smaller, simpler goals. Many of these objectives are represented by independent code modules or runtime libraries. By breaking projects down into simple, self-contained and independently compiled objects bugs are isolated and easier to locate, while project goals become clearer and easier to define. It also makes your project adaptable and expandable. Consider all the powerful technologies, never dreamed of by the Lisa engineers, that have been added to the Macintosh operating system.

Your next project may not be as intimidating as writing a new operating system, but then it might feel that way. You probably will apply a modular design to that project, breaking the code down into smaller and more manageable pieces represented by different classes or code files. But, what if you took that a step farther and isolated fundamental logic to a separately compiled removable, replaceable plug-in? Not only would your next update be a little easier, your code base and bug space a little smaller, but I bet you've already started thinking about entirely different logic you could offer as a second plug-in. Rest assured, if you haven't - one of your users will. In this issue, Joe Zobkiw describes the fundamentals of adding a plug-in architecture to your next application. By providing a plug-in architecture you, or your more creative customers, can expand and adapt your product in new and exciting directions.

Or consider the problem from the other side. Perhaps your goal can best be achieved by creating new logic for an existing application. Tools like Resorcerer, FileMaker Pro, Netscape and CodeWarrior offer plug-in architectures and therefore opportunities to tune these powerful tools to your most specific needs. They also offer opportunities in that you can quickly create valuable companion products for existing markets. Photoshop is an essential tool for graphic artists, establishing a huge market for plug-in companion products like Kai's Power Tools and Alien Skin's Eye Candy. To get an idea of how easy it can be to create a plug-in, take a look at Steve Sheets article in this issue on crafting plug-ins for BBEdit - the Swiss army chainsaw of text editors.

Modular design isn't only about plug-ins. Most programmers have a folder someplace. That folder is filled with snippets and example code (a class for implementing a preferences file, a linked list code module, or just a snippet showing how to spin a cursor). Odds are you don't even read most of that code anymore, it's just copy and paste - plug and play. That's the way it should be. Detroit doesn't reinvent the wheel every time they build a new car and we don't need to reinvent Mercutio every time we want to create dynamic menus.

Ramon Felciano's Mercutio MDEF is just one example of elegant and powerful reusable code. Another is the SpriteWorld library. SpriteWorld let's you drop a wealth of powerful and intuitive graphics code right into your application. In this issue Stefan Sinclair explores SpriteWorld libraries and shows you the fundamentals of introducing spectacular effects into your next program. Are you curious what other mechanisms there are for incorporating libraries into your Macintosh programs or offering libraries to other developers? Jeremy Nelson's article provides a concise overview of the possibilities.

The technologies and opportunities for plug-in products and precompiled libraries on the Macintosh are varied and quietly growing. We hope that some of the information you find in this issue will help you to explore and profit from those opportunities. Enjoy!in this issue will help you to explore and profit from plug-ins. Enjoy!

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Viber 6.8.6 - Send messages and make cal...
Viber lets you send free messages and make free calls to other Viber users, on any device and network, in any country! Viber syncs your contacts, messages and call history with your mobile device, so... Read more
Carbon Copy Cloner 4.1.17 - Easy-to-use...
Carbon Copy Cloner backups are better than ordinary backups. Suppose the unthinkable happens while you're under deadline to finish a project: your Mac is unresponsive and all you hear is an ominous,... Read more
EtreCheck 3.4.2 - For troubleshooting yo...
EtreCheck is an app that displays the important details of your system configuration and allow you to copy that information to the Clipboard. It is meant to be used with Apple Support Communities to... Read more
Hopper Disassembler 4.2.10- - Binary dis...
Hopper Disassembler is a binary disassembler, decompiler, and debugger for 32- and 64-bit executables. It will let you disassemble any binary you want, and provide you all the information about its... Read more
VueScan 9.5.81 - Scanner software with a...
VueScan is a scanning program that works with most high-quality flatbed and film scanners to produce scans that have excellent color fidelity and color balance. VueScan is easy to use, and has... Read more
iFFmpeg 6.4.2 - Convert multimedia files...
iFFmpeg is a comprehensive media tool to convert movie, audio and media files between formats. The FFmpeg command line instructions can be very hard to master/understand, so iFFmpeg does all the hard... Read more
Fantastical 2.4.1 - Create calendar even...
Fantastical 2 is the Mac calendar you'll actually enjoy using. Creating an event with Fantastical is quick, easy, and fun: Open Fantastical with a single click or keystroke Type in your event... Read more
Fantastical 2.4.1 - Create calendar even...
Fantastical 2 is the Mac calendar you'll actually enjoy using. Creating an event with Fantastical is quick, easy, and fun: Open Fantastical with a single click or keystroke Type in your event... Read more
Live Home 3D Pro 3.2.2 - $69.99
Live Home 3D Pro, a successor of Live Interior 3D, is the powerful yet intuitive home design software that lets you build the house of your dreams right on your Mac. It has every feature of Live Home... Read more
Live Home 3D Pro 3.2.2 - $69.99
Live Home 3D Pro, a successor of Live Interior 3D, is the powerful yet intuitive home design software that lets you build the house of your dreams right on your Mac. It has every feature of Live Home... Read more

Latest Forum Discussions

See All

Glyph Quest Chronicles guide - how to ma...
Glyph Quest returns with a new free-to-play game, Glyph Quest Chronicles. Chronicles offers up more of the light-hearted, good humored fantasy fun that previous games featured, but with a few more refined tricks up its sleeve. It's a clever mix of... | Read more »
Catch yourself a Lugia and Articuno in P...
Pokémon Go Fest may have been a bit of a disaster, with Niantic offering fans full refunds and $100 worth of in-game curency to apologize for the failed event, but that hasn't ruined trainers' chances of catching new legendary Pokémon. Lugia nad... | Read more »
The best deals on the App Store this wee...
There are quite a few truly superb games on sale on the App Store this week. If you haven't played some of these, many of which are true classics, now's the time to jump on the bandwagon. Here are the deals you need to know about. [Read more] | Read more »
Realpolitiks Mobile (Games)
Realpolitiks Mobile 1.0 Device: iOS Universal Category: Games Price: $5.99, Version: 1.0 (iTunes) Description: PLEASE NOTE: The game might not work properly on discontinued 1GB of RAM devices (iPhone 5s, iPhone 6, iPhone 6 Plus, iPad... | Read more »
Layton’s Mystery Journey (Games)
Layton’s Mystery Journey 1.0.0 Device: iOS Universal Category: Games Price: $15.99, Version: 1.0.0 (iTunes) Description: THE MUCH-LOVED LAYTON SERIES IS BACK WITH A 10TH ANNIVERSARY INSTALLMENT! Developed by LEVEL-5, LAYTON’S... | Read more »
Full Throttle Remastered (Games)
Full Throttle Remastered 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: Originally released by LucasArts in 1995, Full Throttle is a classic graphic adventure game from industry legend Tim... | Read more »
Stunning shooter Morphite gets a new tra...
Morphite is officially landing on iOS in September. The game looks like the space shooter we've been needing on mobile, and we're going to see if it fits the bill quite shortly. The game's a collaborative effort between Blowfish Studios, We're Five... | Read more »
Layton's Mystery Journey arrives to...
As you might recall, Layton's Mystery Journey is headed to iOS and Android -- tomorrow! To celebrate the impending launch, Level-5's released a new trailer, complete with an adorable hamster. [Read more] | Read more »
Sidewords (Games)
Sidewords 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: Grab a cup of coffee and relax with Sidewords. Sidewords is part logic puzzle, part word game, all original. No timers. No... | Read more »
Noodlecake Games' 'Leap On!...
Noodlecake Games is always good for some light-hearted arcade fun, and its latest project, Leap On! could carry on that tradition. It's a bit like high stakes tetherball in a way. Your job is to guide a cute little blob around a series of floating... | Read more »

Price Scanner via MacPrices.net

Apple Move Away from White Label Event Apps C...
DoubleDutch, Inc., a global provider of Live Engagement Marketing (LEM) solutions, has made a statement in the light of a game-changing announcement from Apple at this year’s WWDC conference.... Read more
70 Year Old Artist Creates Art Tools for the...
New Hampshire-based developer Pirate’s Moon has announced MyArtTools 1.1.3, the update to their precision drawing app, designed by artist Richard Hoeper exclusively for use with the 12.9-inch iPad... Read more
Sale! New 2017 13-inch 2.3GHz MacBook Pros fo...
Amazon has new 2017 13″ 2.3GHz/128GB MacBook Pros on sale today for $150 off MSRP including free shipping. Their prices are the lowest available for these models from any reseller: – 13″ 2.3GHz/128GB... Read more
13″ 2.3GHz/128GB Space Gray MacBook Pro on sa...
MacMall has the 13″ 2.3GHz/128GB Space Gray MacBook Pro (MPXQ2LL/A) on sale for $1219 including free shipping. Their price is $80 off MSRP. Read more
Clearance 2016 12-inch Retina MacBooks, Apple...
Apple recently dropped prices on Certified Refurbished 2016 12″ Retina MacBooks, with models now available starting at $1019. Apple will include a standard one-year warranty with each MacBook, and... Read more
Save or Share
FotoJet Designer, is a simple but powerful new graphic design apps available on both Mac and Windows. With FotoJet Designer’s 900+ templates, thousands of resources, and powerful editing tools you... Read more
Logo Maker Shop iOS App Lets Businesses Get C...
A newly released app is designed to help business owners to get creative with their branding by designing their own logos. With more than 1,000 editable templates, Logo Maker Shop 1.0 provides the... Read more
Sale! New 15-inch MacBook Pros for up to $150...
Amazon has the new 2017 15″ MacBook Pros on sale for up to $150 off MSRP including free shipping: – 15″ 2.8GHz MacBook Pro Space Gray: $2249 $150 off MSRP – 15″ 2.89Hz MacBook Pro Space Gray: $2779 $... Read more
DEVONthink To Go 2.1.7 For iOS Brings Usabili...
DEVONtechnologies has updated DEVONthink To Go, the iOS companion to DEVONthink for Mac, with enhancements and bug fixes. Version 2.1.7 adds an option to clear the Global Inbox and makes the grid... Read more
15-inch 2.2GHz Retina MacBook Pro, Apple refu...
Apple has Certified Refurbished 2015 15″ 2.2GHz Retina MacBook Pros available for $1699. That’s $300 off MSRP, and it’s the lowest price available for a 15″ MacBook Pro. An Apple one-year warranty is... Read more

Jobs Board

*Apple* Solutions Consultant (ASC) - Poole -...
Job Summary The people here at Apple don't just create products - they create the kind of wonder that's revolutionised entire industries. It's the diversity of those Read more
SW Engineer *Apple* TV - Apple Inc. (United...
Changing the world is all in a day's work at Apple . If you love innovation, here's your chance to make a career of it. You'll work hard. But the job comes with more Read more
Frameworks Engineering Manager, *Apple* Wat...
Frameworks Engineering Manager, Apple Watch Job Number: 41632321 Santa Clara Valley, California, United States Posted: Jun. 15, 2017 Weekly Hours: 40.00 Job Summary Read more
Product Manager - *Apple* Pay on the *Appl...
Job Summary Apple is looking for a talented product manager to drive the expansion of Apple Pay on the Apple Online Store. This position includes a unique Read more
*Apple* Retail - Multiple Positions - Apple...
SalesSpecialist - Retail Customer Service and SalesTransform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.