TweetFollow Us on Twitter

OPENSTEP Porting to Rhapsody

Volume Number: 13 (1997)
Issue Number: 7
Column Tag: Rhapsody

Porting to Rhapsody PPC from OPENSTEP

by Andrew Stone, Chief Executive Haquer, Stone Design Corp.

Want your OPENSTEP application to run on more than one platform? Apple is making it easy

In late 1995, when the future for NeXT Software, Inc. seemed rather bleak, the first beta version of OPENSTEP 4.0 shipped to a few faithful developers. Faced with doing Java development in incomplete environments, I decided to yet again recommit to OPENSTEP and port our best selling drawing and design program, Create, which contains the Stone Libraries upon which our other apps are based. In an effort to save others from the pitfalls I fell into, I produced a porting guide http://www.stone.com/porting/ documenting the likely gotchas of the process of porting from NEXTSTEP to OPENSTEP.

It took me one month to port this 100,000 line code base to a state of linking and limping. After 8 months of intense debugging and working back and forth between the NT and MACH teams at NeXT and the SOLARIS OPENSTEP team at SUN Microsystems, Create 4.0 rolled into beta, and was the first app to ship for OPENSTEP in the fall of 1996. Proving the claim of true cross platform compatibility, it ran on Windows 95 and Window NT, SOLARIS, and OPENSTEP MACH for Motorola, Intel and SPARC architectures. Since the development and porting tools were just being debugged for the first time and my OPENSTEP knowledge was still nascent, the process was lengthier than a port from NEXTSTEP to OPENSTEP would be today. We shipped, and were underwhelmed by the lack of response from a beleaguered set of OPENSTEP users.

Apple acquiring NeXT on December 20th, 1996 changed all of that, proving once again that reality is far stranger than fiction. The Wheel turned full circle and the renegade ex-Mac developers were back home!

'Tis true that perseverance furthers, because 2 weeks prior to the 1997 WWDC on Cinco de Mayo, I was invited to NeXT Software's headquarters in Redwood City to build Create for the PowerPC. Unlike any previous visit to NeXT where I was watched with hawk-eye and not allowed to go anywhere unescorted, I was given full reign of the second floor of engineering, replete with my own office and access to that legendary espresso maker.

Two binaries were needed for the show: one for Rhapsody running on Intel, the other for Rhapsody running on PowerPC. The app was also built to showcase Yellow Box running on Windows with the Windows look and feel. This build compiled without warning, the app launched and hung. It turns out that I had a vestigial line of code from NEXTSTEP 1.0 circa 1989:

[menu display];

This was a workaround to get the menu to redraw after dynamically adding menu items. However, in the brave new world of Rhapsody, one cannot be sure what a menu is. Normally a menu is a subclass of NSView, which contains a display method. Under Rhapsody, Apple's drop-down menu is not a subclass of NSView, and does not recognize the display method.

The engineers at Apple/NeXT, in the midst of going through a total reorganization, had ported the kernel and compiler tools to PPC within a matter of months. They had built a cross-compiler to build PPC binaries from Intel machines, and once again, Create compiled cleanly. The PPC kernel was only a few days old, still dripping with amniotic fluid, when the first commercial app just came up and ran. As key team member Matt Watson is oft heard saying, "It just works!" Shouts of joy from the team could be heard throughout the building.

True to the promise of Rhapsody, no coding changes were required for the PPC/Yellow Box port, a few NeXT Interface Builder files (nibs) had to be adjusted to be more Mac-like -- mainly Create's main menu had to have its menu items reordered and renamed slightly to feel like a Mac. To solve this problem, a new interface loading paradigm was introduced: if a nib file has a platform suffix, that nib file is loaded instead of the one without a suffix:

NEXTSTEP look as provided by _NEXTSTEP___<NIB_FILE_NAME>-nextstep.nib

Macintosh look as provided by _Macintosh:__<NIB_FILE_NAME>-macintosh.nib

Windows look as provided by _Windows NT/95_<NIB_FILE_NAME>-windows.nib

The Mac and Windows NT/95 menus use a separation marker that you can find on the Menu palette of IB when you set the "Interface Style" in Interface Builder's Preferences (General) to "OPENSTEP for Windows." The separation marker must be disabled in the IB inspector to give it the light gray look. Menu organization and menu item naming should follow the User Interface guidelines of the target platform.

Having taken the time to learn Java and the various development environments from Sun and Symantec over the last couple of years, I can unreservedly say that Rhapsody rocks the house and Java has a lot to implement before it offers the power, elegance and integration of Rhapsody. After this delightful porting experience, I believe that Rhapsody is Write Once -- Runs Right Everywhere.


Andrew Stone, an early HyperTalk developer and co-author of "Tricks of the HyperTalk Masters" emigrated to the NeXT community in 1989, going on to write such NeXT classics as TextArt, Create, DataPhile and 3Dreality.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Tor Browser Bundle 7.0.7 - Anonymize Web...
The Tor Browser Bundle is an easy-to-use portable package of Tor, Vidalia, Torbutton, and a Firefox fork preconfigured to work together out of the box. It contains a modified copy of Firefox that... Read more
Data Rescue 5.0.1 - Powerful hard drive...
Data Rescue’s new and improved features let you scan, search, and recover your files faster than ever before. We have modernized the file-preview capabilities, added new files types to the recovery... Read more
Alfred 3.5.1 - Quick launcher for apps a...
Alfred is an award-winning productivity application for OS X. Alfred saves you time when you search for files online or on your Mac. Be more productive with hotkeys, keywords, and file actions at... Read more
Tunnelblick 3.7.3 - GUI for OpenVPN.
Tunnelblick is a free, open source graphic user interface for OpenVPN on OS X. It provides easy control of OpenVPN client and/or server connections. It comes as a ready-to-use application with all... Read more
DEVONthink Pro 2.9.16 - Knowledge base,...
Save 10% with our exclusive coupon code: MACUPDATE10 DEVONthink Pro is your essential assistant for today's world, where almost everything is digital. From shopping receipts to important research... Read more
AirRadar 4.0 - $9.95
With AirRadar, scanning for wireless networks is now easier and more personalized! It allows you to scan for open networks and tag them as favourites or filter them out. View detailed network... Read more
ForkLift 3.0.8 Beta - Powerful file mana...
ForkLift is a powerful file manager and ferociously fast FTP client clothed in a clean and versatile UI that offers the combination of absolute simplicity and raw power expected from a well-executed... Read more
Opera 48.0.2685.50 - High-performance We...
Opera is a fast and secure browser trusted by millions of users. With the intuitive interface, Speed Dial and visual bookmarks for organizing favorite sites, news feature with fresh, relevant content... Read more
FotoMagico 5.5 - Powerful slideshow crea...
FotoMagico lets you create professional slideshows from your photos and music with just a few, simple mouse clicks. It sports a very clean and intuitive yet powerful user interface. High image... Read more
Adobe Audition CC 2018 11.0.0 - Professi...
Audition CC 2018 is available as part of Adobe Creative Cloud for as little as $19.99/month (or $9.99/month if you're a previous Audition customer). Adobe Audition CC 2018 empowers you to create and... Read more

Wheels of Aurelia (Games)
Wheels of Aurelia 1.0.1 Device: iOS Universal Category: Games Price: $3.99, Version: 1.0.1 (iTunes) Description: | Read more »
Halcyon 6: Starbase Commander guide - ti...
Halcyon 6 is a well-loved indie RPG with stellar tactical combat and some pretty good writing, too. It's now landed on the App Store, so mobile fans, if you're itching for a good intergalactic adventure, here's your game. Being a strategy RPG, the... | Read more »
Game of Thrones: Conquest guide - how to...
Fans of base building games might be excited to know that yet another entry in the genre has materialized - Game of Thrones: Conquest. Yes, you can now join the many kingdoms of the famed book series, or create your own, as you try to conquer... | Read more »
Halcyon 6: Starbase Commander (Games)
Halcyon 6: Starbase Commander 1.4.2.0 Device: iOS Universal Category: Games Price: $6.99, Version: 1.4.2.0 (iTunes) Description: An epic space strategy RPG with base building, deep tactical combat, crew management, alien diplomacy,... | Read more »
Legacy of Discord celebrates its 1 year...
It’s been a thrilling first year for fans of Legacy of Discord, the stunning PvP dungeon-crawling ARPG from YOOZOO Games, and now it’s time to celebrate the game’s first anniversary. The developers are amping up the festivities with some exciting... | Read more »
3 reasons to play Thunder Armada - the n...
The bygone days of the Battleship board game might have past, but naval combat simulators still find an audience on mobile. Thunder Armada is Chinese developer Chyogames latest entry into the genre, drawing inspiration from the explosive exchanges... | Read more »
Experience a full 3D fantasy MMORPG, as...
Those hoping to sink their teeth into a meaty hack and slash RPG that encourages you to fight with others might want to check out EZFun’s new Eternity Guardians. Available to download for iOS and Android, Eternity Guardians is an MMORPG that lets... | Read more »
Warhammer Quest 2 (Games)
Warhammer Quest 2 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: Dungeon adventures in the Warhammer World are back! | Read more »
4 of the best Halloween updates for mobi...
Halloween is certainly one of our favorite times for mobile game updates. Many popular titles celebrate this spooky season with fun festivities that can stretch from one week to even the whole month. As we draw closer and closer to Halloween, we'... | Read more »
Fire Rides guide - how to swing to succe...
It's another day, which means another Voodoo game has come to glue our hands to our mobile phones. Yes, it's been an especially prolific month for this particular mobile publisher, but we're certainly not complaining. Fire Rides is yet another... | Read more »

Price Scanner via MacPrices.net

Apple restocks full line of refurbished 13″ M...
Apple has restocked a full line of Apple Certified Refurbished 2017 13″ MacBook Pros for $200-$300 off MSRP. A standard Apple one-year warranty is included with each MacBook, and shipping is free.... Read more
13″ 3.1GHz/256GB MacBook Pro on sale for $167...
Amazon has the 2017 13″ 3.1GHz/256GB Space Gray MacBook Pro on sale today for $121 off MSRP including free shipping: – 13″ 3.1GHz/256GB Space Gray MacBook Pro (MPXV2LL/A): $1678 $121 off MSRP Keep an... Read more
13″ MacBook Pros on sale for up to $120 off M...
B&H Photo has 2017 13″ MacBook Pros in stock today and on sale for up to $120 off MSRP, each including free shipping plus NY & NJ sales tax only: – 13-inch 2.3GHz/128GB Space Gray MacBook... Read more
15″ MacBook Pros on sale for up to $200 off M...
B&H Photo has 15″ MacBook Pros on sale for up to $200 off MSRP. Shipping is free, and B&H charges sales tax in NY & NJ only: – 15″ 2.8GHz MacBook Pro Space Gray (MPTR2LL/A): $2249, $150... Read more
Roundup of Apple Certified Refurbished iMacs,...
Apple has a full line of Certified Refurbished 2017 21″ and 27″ iMacs available starting at $1019 and ranging up to $350 off original MSRP. Apple’s one-year warranty is standard, and shipping is free... Read more
Sale! 27″ 3.8GHz 5K iMac for $2098, save $201...
Amazon has the 27″ 3.8GHz 5K iMac (MNED2LL/A) on sale today for $2098 including free shipping. Their price is $201 off MSRP, and it’s the lowest price available for this model (Apple’s $1949... Read more
Sale! 10″ Apple WiFi iPad Pros for up to $100...
B&H Photo has 10.5″ WiFi iPad Pros in stock today and on sale for $50-$100 off MSRP. Each iPad includes free shipping, and B&H charges sales tax in NY & NJ only: – 10.5″ 64GB iPad Pro: $... Read more
Apple iMacs on sale for up to $130 off MSRP w...
B&H Photo has 21-inch and 27-inch iMacs in stock and on sale for up to $130 off MSRP including free shipping. B&H charges sales tax in NY & NJ only: – 27″ 3.8GHz iMac (MNED2LL/A): $2179 $... Read more
2017 3.5GHz 6-Core Mac Pro on sale for $2799,...
B&H Photo has the 2017 3.5GHz 6-Core Mac Pro (MD878LL/A) on sale today for $2799 including free shipping plus NY & NJ sales tax only . Their price is $200 off MSRP. Read more
12″ 1.2GHz Space Gray MacBook on sale for $11...
Amazon has the 2017 12″ 1.2GHz Space Gray Retina MacBook on sale for $100 off MSRP. Shipping is free: 12″ 1.2GHz Space Gray MacBook: $1199.99 $100 off MSRP Read more

Jobs Board

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 - Farmin...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
Frameworks Engineer, *Apple* Watch - Apple...
Job Summary Join the team that is shaping the future of software development for Apple Watch! As a software engineer on the Apple Watch Frameworks team you will Read more
*Apple* News Product Marketing Mgr., Publish...
Job Summary The Apple News Product Marketing Manager will work closely with a cross-functional group to assist in defining and marketing new features and services. Read more
Fraud Analyst, *Apple* Advertising Platform...
Job Summary Apple Ad Platforms has an opportunity to redefine advertising on mobile devices. Apple reaches hundreds of millions of iPhone, iPod touch, and iPad Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.