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

Spotify 1.0.36.124. - Stream music, crea...
Spotify is a streaming music service that gives you on-demand access to millions of songs. Whether you like driving rock, silky R&B, or grandiose classical music, Spotify's massive catalogue puts... Read more
Firefox 48.0.2 - Fast, safe Web browser.
Firefox offers a fast, safe Web browsing experience. Browse quickly, securely, and effortlessly. With its industry-leading features, Firefox is the choice of Web development professionals and casual... Read more
BBEdit 11.6.1 - Powerful text and HTML e...
BBEdit is the leading professional HTML and text editor for the Mac. Specifically crafted in response to the needs of Web authors and software developers, this award-winning product provides a... Read more
OmniGraffle Pro 6.6.1 - Create diagrams,...
OmniGraffle Pro helps you draw beautiful diagrams, family trees, flow charts, org charts, layouts, and (mathematically speaking) any other directed or non-directed graphs. We've had people use... Read more
OmniGraffle 6.6.1 - Create diagrams, flo...
OmniGraffle helps you draw beautiful diagrams, family trees, flow charts, org charts, layouts, and (mathematically speaking) any other directed or non-directed graphs. We've had people use Graffle to... Read more
Dropbox 8.4.21 - Cloud backup and synchr...
Dropbox is an application that creates a special Finder folder that automatically syncs online and between your computers. It allows you to both backup files and keep them up-to-date between systems... Read more
BetterTouchTool 1.84 - Customize Multi-T...
BetterTouchTool adds many new, fully customizable gestures to the Magic Mouse, Multi-Touch MacBook trackpad, and Magic Trackpad. These gestures are customizable: Magic Mouse: Pinch in / out (zoom... Read more
ScreenFlow 6.1 - Create screen recording...
ScreenFlow is powerful, easy-to-use screencasting software for the Mac. With ScreenFlow you can record the contents of your entire monitor while also capturing your video camera, microphone and your... Read more
f.lux 37.7 - Adjusts the color of your d...
f.lux makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day. Ever notice how people texting at night have that eerie blue glow? Or wake... Read more
BetterTouchTool 1.84 - Customize Multi-T...
BetterTouchTool adds many new, fully customizable gestures to the Magic Mouse, Multi-Touch MacBook trackpad, and Magic Trackpad. These gestures are customizable: Magic Mouse: Pinch in / out (zoom... Read more

Become the King of Avalon in FunPlus’ la...
King Arthur is dead. Considering the legend dates back to the 5th century, it would be surprising if he wasn’t. But in the context of real-time MMO game King of Avalon: Dragon Warfare, Arthur’s death plunges the kingdom into chaos. Evil sorceress... | Read more »
Nightgate (Games)
Nightgate 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: *** Launch Sale: 25% OFF for a limited time! *** In the year 2398, after a great war, a network of intelligent computers known as... | Read more »
3 best fantasy football apps to get you...
Last season didn't go the way you wanted it to in fantasy football. You were super happy following your drafts or auctions, convinced you had outsmarted everyone. You were all set to hustle on the waiver wire, work out some sweet trades, and make... | Read more »
Pokemon GO update: Take me to your leade...
The Team Leaders in Pokemon GO have had it pretty easy up until now. They show up when players reach level 5, make their cases for joining their respective teams, and that's pretty much it. Light work, as Floyd Mayweather might say. [Read more] | Read more »
Ruismaker FM (Music)
Ruismaker FM 1.0 Device: iOS Universal Category: Music Price: $4.99, Version: 1.0 (iTunes) Description: Following up on the success of Ruismaker, here's her crazy twin-sister, designed for people who want to design their own... | Read more »
Space Marshals 2 (Games)
Space Marshals 2 1.0.15 Device: iOS iPhone Category: Games Price: $5.99, Version: 1.0.15 (iTunes) Description: The sci-fi wild west adventure in outer space continues with Space Marshals 2. This tactical top-down shooter puts you in... | Read more »
Dungeon Warfare (Games)
Dungeon Warfare 1.0 Device: iOS Universal Category: Games Price: $3.99, Version: 1.0 (iTunes) Description: Dungeon Warfare is a challenging tower defense game where you become a dungeon lord to defend your dungeon against greedy... | Read more »
Solitairica (Games)
Solitairica 1.0.7 Device: iOS Universal Category: Games Price: $3.99, Version: 1.0.7 (iTunes) Description: Solitairica takes RPG combat and challenging rogue-like progression to a fresh new place—the world of solitaire! | Read more »
Bowmasters tips, tricks and hints
At least for this writer, archery was one of the more pleasant surprises of the 2016 Rio Olympics. As opposed to target shooting with guns, which was dreadfully boring, watching people shoot arrows at targets was pretty darn cool. [Read more] | Read more »
Best apps for watching live TV
The Olympics have come and gone, leaving nearly everyone in a temporary state of "What the heck am I going to watch on TV right now?" Besides old reruns of Golden Girls, but that goes without saying. [Read more] | Read more »

Price Scanner via MacPrices.net

BookBook Releases SurfacePad, BookBook &...
BookBook has released three new covers just for iPad Pro: SurfacePad, BookBook and BookBook Rutledge Edition. BookBook for iPad Pro is a gorgeous leather case reminiscent of a vintage sketchbook.... Read more
Clean Text 1.0 for iOS Reduces Text Cleanup a...
Apimac today announced availability of Clean Text for iOS, a tool for webmasters, graphic designers, developers and magazine editors to reduce text cleanup and editing time, and also for any iPhone... Read more
27-inch iMacs on sale for up to $220 off MSRP
B&H Photo has 27″ Apple iMacs on sale for up to $200 off MSRP including free shipping plus NY sales tax only: - 27″ 3.3GHz iMac 5K: $2099 $200 off MSRP - 27″ 3.2GHz/1TB Fusion iMac 5K: $1899 $100... Read more
Apple refurbished 13-inch MacBook Airs availa...
Apple has Certified Refurbished 2016 and 2015 13″ MacBook Airs now available starting at $849. An Apple one-year warranty is included with each MacBook, and shipping is free: - 2016 13″ 1.6GHz/8GB/... Read more
Apple refurbished iPad mini 2s available for...
Apple is offering Certified Refurbished iPad mini 2s for up to $80 off the cost of new minis. An Apple one-year warranty is included with each model, and shipping is free: - 16GB iPad mini 2 WiFi: $... Read more
Save up to $600 with Apple refurbished Mac Pr...
Apple has Certified Refurbished Mac Pros available for up to $600 off the cost of new models. An Apple one-year warranty is included with each Mac Pro, and shipping is free. The following... Read more
Mac Pros on sale for $200 off MSRP
B&H Photo has Mac Pros on sale for $200 off MSRP. Shipping is free, and B&H charges sales tax in NY only: - 3.7GHz 4-core Mac Pro: $2799, $200 off MSRP - 3.5GHz 6-core Mac Pro: $3799, $200... Read more
Will We See A 10.5″ iPad Pro in 2017? – The ‘...
A MacRumors report, cites a research note from KGI Securities analyst Ming-Chi Kuo, saying a new size iPad model is in the works. According to the highly respected Cho, who has a strong track record... Read more
IOGEAR USB-C Docking Station Transforms Lapto...
IOGEAR has announced the launch of its innovative USB-C Docking Station with Power Delivery which turns USB-C enabled laptops into desktop workstations. The new IOGEAR USB-C Docking Station features... Read more
12-inch Retina MacBooks on sale for up to $10...
Amazon has 2016 12″ Apple Retina MacBooks on sale for $100 off MSRP. Shipping is free: - 12″ 1.1GHz Space Gray Retina MacBook: $1199 $100 off MSRP - 12″ 1.1GHz Silver Retina MacBook: $1224.99 $75 off... Read more

Jobs Board

*Apple* Professional Learning Specialist - A...
# Apple Professional Learning Specialist Job Number: 51234243 Portland, Maine, Maine, United States Posted: Aug. 18, 2016 Weekly Hours: 40.00 **Job Summary** The Read more
*Apple* Mobile Master - Best Buy (United Sta...
What does a Best Buy Apple Mobile Master do? At Best Buy, our mission is to leverage the unique talents and passions of our employees to inspire, delight, and enrich Read more
*Apple* Retail - Multiple Positions Akron, O...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
Simply Mac *Apple* Specialist- Repair Techn...
…The Technician is a master at working with our customers to diagnose and repair Apple devices in a manner that exceeds the expectations set forth by Apple Read more
*Apple* Retail - Multiple Positions Germanto...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.