TweetFollow Us on Twitter

January 92 - In Transit to MacApp 3

In Transit to MacApp 3

Howard Katz

I've been away from FrameWorks for a few months, but I haven't been away from the Mac and MacApp. I've made a move from Pascal to C in my own programming work-initially, with a lot of trepidation-and I've also done some playing around with beta versions of MacApp 3, pursuant to jumping into C++ with both feet. First, the news…

MacApp 3 final-getting close

According to Tom Chavez, MacApp's product manager at Apple, there are about 125 MacApp 3 beta sites out there, all merrily compiling away on beta number 3, digging up bugs galore. It saddens my heart to tell you this, but yes-there are bugs, though the number is diminishing with each successive beta release.

As I write, beta number 4 will soon go out to the seed list, a few short weeks before Christmas. If schedules hold, the final release of MacApp 3 should be finished and ready to go by the end of January-theoretically, about the time you're reading this. Tom says that even if that happens, though, it's unlikely that the documentation will keep pace with the software development, so you probably won't see a version that APDA can ship on the street before MADA's Orlando conference in February.

Ditto to Jesse

Jesse Feiler wrote a nice little piece for the last FrameWorks on his experiences in moving from MacApp 2 and Object Pascal to MacApp 3 and C++. I suspect the information that Jesse provided will be helpful for other developers who are going to be making the same move. It was for me.

In getting ready to move into C++, I've just made a similar though smaller transition of my own-from Pascal to C. I can strongly echo at least one of Jesse's sentiments-if you're going to make the language jump, dive right in. Stop reading about the language, just do it.

I had a lot of trepidation before making the move, and about one anxious week of trying to figure out what things weren't working and why. But that was it; it was relatively painless.

I spent four months on a C language programming project about four years ago, so this wasn't my first exposure to the language. But it didn't "take" very well the first time around. This time, for whatever reason, it did. I'm enjoying it.

Mostly bigger, hopefully better

I finally got a copy of MacApp 3 running on my system, though I haven't done anything serious with it yet. I'm still in the MacBrowse exploring stage. As it is, MacApp 3 grunts and wheezes and barely runs on my machine. I've an old, stock standard Mac II. I had to dig into the bank account to upgrade my RAM from 5 to 8 megs to get MacApp 3 to compile at all, and it complains bitterly at that. MacApp 3 development really requires 9 megs, or 8 megs and virtual memory, and that I don't have at the moment.

This seems pretty incredible to me. I can remember-though I'm not sure I want to-compiling MacApp applications on a Plus. Such a thing is no longer within the realm of possibility, even as a thought experiment. The main villain, I'm told, is CFront, which requires-this is no typo-5 megs to run. Great Caesar's ghost!

It seems that just about everything about MacApp 3 is bigger, and that doesn't necessarily mean better. Disk space requirements provide another example. I've got an external 40 meg drive hung off my machine that I use only for occasional programming projects, and amazingly enough, it's too small. I used to do everything on a 40-meg hard drive; now it's not even large enough for MacApp, let alone anything else.

It's easy to see why when you look at the numbers. My MPW folder, little changed from the way it arrived in the mail, is well over 12 meg, and my MacApp folder is over 21. The latter number, on your system, will depend on the number of different versions you need to compile MacApp in. There used to be just two: "Debug" and "NoDebug." There are now a minimum of four, when you factor in whether or not you're supporting System 7. Just my ".NoDebug Files" folder, created by MacApp, is well over 3 megs.

New idioms galore

RAM and disk requirements are a downer, and I haven't even talked about compile times yet. But everything else is peachy-keen. There are new idioms galore. How's the following for a good example of some of the potentially baffling and interesting new things in MacApp 3? This little gem is right out of TObject:
pascal void TObject::UpdateDependents(
                ChangeID theChange,
                TObject* changedObject,
                TObject* changedBy)
{
CDependentIterator iter(this);
for (   TObject* dependent = iter.FirstDependent(); iter.More();
        dependent = iter.NextDependent())
    {
        dependent->HandleUpdate( theChange, changedObject,
            changedBy);
    }
}

Coming into MacApp 3 from an MacApp 2 and Object Pascal background, I count at least five idioms here that are new to me. If you're new to C and object programming in particular, probably everything looks at least slightly bizarre. Even if you're an old and experienced C hand from way back, there are strange things happening here. The three clauses that determine the boundary-condition behavior of the "for" loop, for example, probably look somewhat, well, wrong. And yet, they do make sense-eventually.

How about the declaration "CDependentIterator iter(this)" in the above sample? That's worth at least a few minutes of silent contemplation the first time it's encountered in code. I know what a "T…" class is; what's a "C…" class? Can we all say "stack-based object" in unison? In other words, an object declaration where we really have the object itself, and not an indirect reference to one through either a pointer or a handle.

And what about the parameter the function takes-"this" in the above example? We've all been hearing about constructors; here's one in the flesh.

What else? What's a "CDependentIterator" anyway? Iterators are one thing; dependencies are something else again. The combination of the two is only slightly more potent than the nuclear-powered salsa that took my mouth out of action for two hours yesterday at lunch.

TObject, by the way, is quite a bit more beefed up than what I'm used to from earlier incarnations of MacApp. It's hard to believe this class once had a grand total of four-that's 4-methods, and that they were all we needed. By my count, TObject now has at least 36 methods. MacApp 3's new dependency-notification mechanism accounts for a good number of them.

References to the rescue

I had a few books open next to my machine as I MacBrowsed my way through the MacApp 3 source code. Occasionally I'd venture over to Harbison and Steele, the "official" C language reference manual. I'm told there's a C++ version out as well, but I haven't seen it yet.

Kernighan and Ritchie's "The C Programming Language" is also highly recommended. It's from Prentice Hall. Make sure you pick up the second edition when you go shopping.

I'll put in a plug for one other C++ language reference that I find myself dipping into and out of when I have a few moments to spare, and that's Dan Weston's Elements of C++ Macintosh Programming. Dan's discussion of C++ language features is based around a class library that he develops in the book. In many respects it looks like MacApp-two of the main classes are called "TApp" and "TDoc," respectively. Dan's a MacApp programmer from way back and makes the odd appearance at MacApp conferences. I've been enjoying the book and finding it useful.

I'll be picking up some of the other "great" C++ references over the next few weeks and will try and do some quick reviews in columns to come. In the meantime, I hope you had a good Christmas season and are looking forward to a sunny vacation in Orlando. Florida, watch out!

 
AAPL
$100.75
Apple Inc.
+0.64
MSFT
$46.36
Microsoft Corpora
-0.08
GOOG
$577.36
Google Inc.
+1.00

MacTech Search:
Community Search:

Software Updates via MacUpdate

QuickBooks 2015 16.0.0.1352 R1 - Financi...
QuickBooks 2015 helps you manage your business easily and efficiently. Organize your finances all in one place, track money going in and out of your business, and spot areas where you can save.... Read more
Mac DVDRipper Pro 5.0.1 - Copy, backup,...
Mac DVDRipper Pro is the DVD backup solution that lets you protect your DVDs from scratches, save your batteries by reading your movies from your hard disk, manage your collection with just a few... Read more
Apple OS X bash Update 1.0 - Fix for sec...
The OS X bash Update fixes a security flaw in the bash UNIX shell on OS X 10.9.5 (also on OS X 10.8 and 10.7 [see Related Links below]). OS X 10.9.5 or later Downloads for OS X 10.8 and OS X 10.7 in... Read more
SyncTwoFolders 2.0.5 - Syncs two user-sp...
SyncTwoFolders simply synchronizes two folders. It supports synchronization across mounted network drives and it is a possibility to run a simulation showing in a log what will be done. Please visit... Read more
FinderPop 2.5.7 - Classic Mac utility, n...
FinderPop is a Universal preference pane that extends OS X's contextual menus using a FinderPop Items folder much as the Apple Menu Items folder used to do for the Apple menu. It has other features... Read more
VueScan 9.4.45 - 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
LibreOffice 4.3.2.2 - Free Open Source o...
LibreOffice is an office suite (word processor, spreadsheet, presentations, drawing tool) compatible with other major office suites. The Document Foundation is coordinating development and... Read more
calibre 2.4 - Complete e-library managem...
Calibre is a complete e-book library manager. Organize your collection, convert your books to multiple formats, and sync with all of your devices. Let Calibre be your multi-tasking digital... Read more
Default Folder X 4.6.9b1 - Enhances Open...
Default Folder X attaches a toolbar to the right side of the Open and Save dialogs in any OS X-native application. The toolbar gives you fast access to various folders and commands. You just click... Read more
Beamer 2.0.4 - Stream any movie file fro...
Beamer streams to your Apple TV.... Plays any movie file - Just like the popular desktop movie players, Beamer accepts all common formats, codecs and resolutions. AVI, MKV, MOV, MP4, WMV, FLV. To... Read more

Latest Forum Discussions

See All

apeFilter (Music)
apeFilter 1.0 Device: iOS Universal Category: Music Price: $6.99, Version: 1.0 (iTunes) Description: | Read more »
Shred It! Review
Shred It! Review By Jennifer Allen on September 30th, 2014 Our Rating: :: GORGEOUS BUT BASICUniversal App - Designed for iPhone and iPad It might look lovely, but Shred It! is a pretty shallow endless runner/snowboarding game.   | Read more »
It Came From Canada: Angry Birds: Transf...
Anyone afraid that throwing Transformers into the Angry Birds mix would result in a Michael Bay-level of childhood pillaging can rest easy. While Rovio’s famous fowls may be a 21st century staple, Angry Birds: Transformers wears its affection for... | Read more »
Galaxy Trucker Review
Galaxy Trucker Review By Rob Thomas on September 30th, 2014 Our Rating: :: IN FOR THE LONG HAULiPad Only App - Designed for the iPad We got a great big convoy, rockin’ through the night… the endless night of outer space, that is.... | Read more »
Moon and Sun – children’s book Review
Moon and Sun – children’s book Review By Amy Solomon on September 30th, 2014 Our Rating: Moon and Sun is a fable-like children’s book with lush illustrations.   Developer: Marcio Monteiro Price: $3.99 Version: 1.0 App Reviewed on... | Read more »
Kairosoft Finally Brings The Pyraplex to...
Kairosoft Finally Brings The Pyraplex to iOS Posted by Jessica Fisher on September 30th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Yeti’s Parole Officer Review
Yeti’s Parole Officer Review By Jennifer Allen on September 30th, 2014 Our Rating: Universal App - Designed for iPhone and iPad Yeti’s Parole Officer proves that looks aren’t everything in this entertaining, if plain, piece of... | Read more »
Record Keeper and World Wide Words – Two...
Record Keeper and World Wide Words – Two New Final Fantasy Games Arrive on iOS in Japan Posted by Ellis Spice on September 30th, 2014 [ permalink ] | Read more »
iPollute Review
iPollute Review By Nadia Oxford on September 30th, 2014 Our Rating: :: iPOLLUTE, uPOLLUTEUniversal App - Designed for iPhone and iPad iPollute is a delightful-looking pollution simulator, though it’s a bit light on “game” content... | Read more »
This Week at 148Apps: September 22-26, 2...
Your Source For The Latest App Reviews   | Read more »

Price Scanner via MacPrices.net

MacBook Airs on sale for $100 off MSRP, start...
Best Buy has the new 2014 MacBook Airs on sale for $100 off MSRP on their online store. Choose free home shipping or free local store pickup (if available). Prices valid for online orders only, in-... Read more
Apple Releases OS X Mavericks bash Update 1.0...
Apple has released a patch update for OS X Mavericks users to address the recently-detected “Shellshock” security bug in BSD UNIX’s bash shell. Apple says only a few Mac users who had manually... Read more
Pivotal Payments Ready for Apple Pay – FlexPo...
Pivotal Payments, a provider of merchant services and global payment processing solutions, has announced its proprietary FlexPoint platform will support credit and debit transactions through Apple’s... Read more
iStabilizer Announces Tabarm — First Friction...
iStabilizer, a specialist in universal lightweight compact tripods, steady cams, dollies, mounts, and remotes for smartphones, tablets, and cameras, announced today the iStabilizer tabArm, the first... Read more
IStabilizer Flex Smartphone Tripod Wins Usa T...
iStabilizer, a specialist in universal lightweight compact tripods, steady cams, and other products for smartphones, tablets, and cameras, has announced today that its iStabilizer Flex smartphone... Read more
13-inch 2.8GHz Retina MacBook Pro on sale for...
B&H Photo has the new 2014 13″ 2.8GHz Retina MacBook Pro on sale for $1699.99 including free shipping plus NY sales tax only. They’ll also include free copies of Parallels Desktop and LoJack for... Read more
15-inch Retina MacBook Pros on sale for up to...
B&H Photo has the new 2014 15″ Retina MacBook Pros on sale for up to $150 off MSRP. Shipping is free, and B&H charges NY sales tax only. They’ll also include free copies of Parallels Desktop... Read more
Get Down to Business On Your iPad With Free N...
Utah based Poem LLC has introduced Nexticy 1.0, a full-featured, affordable (Free) forms application for iPad. Nexticy makes it ‘way easy’ to create, store, retrieve and analyze paper-like forms of... Read more
13-inch Retina MacBook Pros on sale for $100...
Best Buy has 13-inch 2.6GHz Retina MacBook Pros on sale for $100 off MSRP on their online store. Choose free shipping or free local store pickup (if available). Prices are for online orders only, in-... Read more
Reports Outline Claimed 12-Inch Macbook Air D...
Blogger Jack March says that according to information he’s received from an anonymous “source familiar with Apple’s plans,” the next-generation MacBook Air will launch in mid-2015 and be available... Read more

Jobs Board

*Apple* Retail - Multiple Positions (US) - A...
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
*Apple* Retail - Multiple Positions (US) - A...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
Senior Event Manager, *Apple* Retail Market...
…This senior level position is responsible for leading and imagining the Apple Retail Team's global event strategy. Delivering an overarching brand story; in-store, Read more
*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
Project Manager / Business Analyst, WW *Appl...
…a senior project manager / business analyst to work within our Worldwide Apple Fulfillment Operations and the Business Process Re-engineering team. This role will work Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.