TweetFollow Us on Twitter

Dec 88 Letters
Volume Number:4
Issue Number:12
Column Tag:£etters

Happy Aniversary

By David E. Smith, Editor & Publisher, MacTutor

Prototyper™ vs FaceIt™ vs Programmer’s Extender™

George R. Cossey

Author of Prototyper™

First let me say that the goal of Prototyper™ is similar to the other two products, but the implementation is very different. The goal for all of us is to make designing and building a Macintosh program less painful.

Prototyper™ has a built-in visual editors and simulators for interactive graphical design of the user interface, while the other two products provide no direct visual interaction in the program design.

Prototyper™ generates source code that uses only Mac Toolbox and does not supply any private or additional libraries for linking to. The other two products supply libraries to link to and provide their own toolboxes to interface to. The other two products supply libraries to link to and provide their own toolboxes to interface to the Mac interface.

Programmer’s Extender™ and FaceIt™ both try to make the Mac interface less of a challenge by using custom designed libraries that combine the functionality of multiple toolbox calls along with some canned control code. My objection to that method, as a programmer, is that canned libraries work for only specific conditions and if my program requires something a little extra that is not in the canned library then I have to replace it with my own code that uses the Mac Toolbox anyway. Prototyper™ generates source code that uses only the Mac Toolbox, so any “tweaking” that I have to do to a routine is easily added.

I commend both Programmer’s Extender™ and FaceIt™ for developing their own interface libraries to make programming on the Mac easier. Programmer’s Extender™ is a fine product that shows the dedication and high level of expertise of the designers. FaceIt™ is a fairly recent newcomer and has potential to provide the same level of functionality that Programmer’s Extender™ does.

In summary, I developed Prototyper with two main goals in mind. The first was to make designing a program’s interface like painting a picture in MacDraw, with objects that could be resized and repositioned visually. The second was to provide source code that used only the standard Mac Toolbox and not any special libraries. Both objectives were realized with Prototyper™, and I feel it is in a different class than Programmer’s Extender™ and FaceIt™ which use special libraries of functions.

[I commend Mr. Cossey on his excellent product. I like designing my interface at a MacDraw-type level. I would say that this type of development tool is for programming like the Mac was for user interfaces. This is not to say that I do not like or use the other products when doing my own developing.

Prototyper is definitely not perfect. There are many things I would like added or changed. But this shows how much I like what Prototyper tries to do. I want to improve what it does, not just throw it out. I can see in the future that this will be the avenue of interface developing. The interactive feel of seeing your interface is very gratifying. Mr. Cossey, please keep improving Prototyper. I feel you have a product with lots of potential. -Kirk Chase, Assistant Editor, MacTutor]

Word 3.01 Word Wrap

Steve Seaquist

Temple Hills, MD

After much more sleuthing, I’ve determined that font widths on the screen do not vary according to what printer is Chooser’d. The reason why word wrap and tab stops vary between ImageWriters and LaserWriters is Word’s variation of how it measures an inch:

• Chooser an ImageWriter, then Show Ruler, then get out a real-world ruler (a tape measure, for example) and hold it up to the screen. The inches that Word shows are notably longer than real-world inches.

• Now start a print job using Tall Adjusted. Afterwards, the word wrap point will change. Then do a Page Preview. Afterwards the on-screen ruler’s measurements will also change, and the new ruler’s inches will be a lot closer to (a tiny bit shorter than) real-world inches. (The requirement of doing Page Preview to change the ruler is probably a bug. It should change automatically to reflect current word wrap and tab stops.)

• I believe Word is using THPrint()^^.prInfo.iHRes to determine the number of pixels per inch in the on-screen ruler will accurately reflect the number of inches when the document is printed. This is the old aspect ratio problem.

• Dots on the screen are square 74dpi x 74dpi.

• Dots on IW, Tall are rectangles 72dpi x 80dpi.

• Dots on IW, tall adj. are square 72dpi x 72dpi.

To answer my previous questions:

(1) There is indeed a good reason to change word wrap and tab stops when changing between IWs and LWs. The difference in aspect ratio would yield a different number of characters that could fit comfortably on a line. Because only the center or end point(s) positions of lines are guaranteed, the LW driver’s QD-to-PS bottlenecks would generate lines longer than anticipated (left, right, or centered justified) or too compressed (fully justified). So the passage at the beginning of Tech Note 72 (about printing to LWs the same way as you would to IWs) is misleading.

(2) Contrary to my earlier suspicions, Word wasn’t playing any tricks to change screen font widths. In actuality, printer resolution changes printout font widths, and Word simply adjusts its screen display accordingly.

(3) The trick to getting IW rough drafts of Word documents that are intended to be LW’d is to use Tall Adjusted. I haven’t seen any mismatches yet, and I don’t anticipate seeing any, because Word seems to use the same 72 dpi ruler in either case. Too bad Microsoft’s hotline people didn’t know this. It would’ve save some people a lot of sleuthing.

I’m tempted to use Tall Adjusted and LW fonts in all Word documents, so that the decision of whether to LW the doc can be postponed. Unfortunately, Tall Adjusted seems to slightly improve, but not eliminate, the problem where Best mode printing jams together words that are in LW fonts. This makes Best mode Worst and eliminates the qualitative middle ground between Faster and LW (a middle ground that still exists if the doc is in an IW font). My only guess as to what causes that problem is the facts that FScaleDisable implies FractEnable (Tech Note 92, page 2) and Best mode printing is scaled down from the double-size font if available.

[You would think that a big software corporation such as Microsoft wouldn’t have such problems. I love Excel, and I tolerate Word. David uses WriteNow; there are a lot of advantages to this product. It can handle lots of pages without slowing down; it can control leading, but for some of the editing work which I do, WriteNow’s quirks just make me shake my head and say it is not much better than MacWrite. I was hoping FullWrite may answer my dreams, but I don’t have the megs or the speed to give me what I need. I’m looking into WordPerfect now for my editing needs. I know it won’t be perfect either, but it has some promise. -ed]

More DB and C

Michael D. Sammer

Bartlesville, OK

Please let me compliment you on the fine journal, MacTutor. I enjoy reading it thoroughly, and it is very helpful. I program strictly in C, therefore, I would appreciate it if we could see more articles on C. This would be extremely helpful to me. Specifically, some articles on database management, hashing tables, and details regarding definitions of records in a file would be very helpful. Techniques for manipulating data back and forth from the disk to a data structure, efficient ways to mark the end of a record in a database would be helpful. I am also interested in a scheme for searching the database in regard to a group of different index parameters, ie, a list of all programmer’s who use a Macintosh, the C language, and are between the ages of 30 and 40. Efficient code for this type of a problem would be extremely educational.

Thank you very much for your assistance. Please continue the fine work which you and your staff have delivered.

[Yes, we have been laxed a little in the variety of languages covered in our journal. We have changed our article selection system to something that is hopefully more improved. But I get requests for more Fortran, more Lisp, more Assembly, as well as less on others. Any programmer worth his salt should be able to get information out of any language an application is written in even if it is not his preferred language (Jörg Langowski frequently has something very interesting in his column for me even though reading that Forth code is “reading hard”). I would also like to see more DB columns as well as WP, PS, and DTP. But unfortunately most of the articles I have on hand don’t fit into those categories. All those who have been thinking of writing up some articles with this much meat, get a typing!. -ed]

MyTENew Suggestion

Moshe Foger

Tel Aviv, Israel

I would like to comment about calling ROM directly through pointers published in the last September issue (Mousehole Report, p. 18). In my opinion the code would not work for the following reason:

When Lightspeed calls the MyTENew, it adheres directly to Pascal stack conventions (leaving room for TEHandle and pushing pointers to the two rectangles) and jumps to MyTENew leaving the return address on the stack. However in MyTENew, the compiler automatically inserts “Link A6, #0” which creates a new activation stack needed to access the function’s parameters. The link instruction saves the previous contents of A6 on the stack. The JSR instruction also leaves a return address on the stack; thus when the ROM is activated, it treats the saved A6 and the original return address as the required rectangle pointers and puts the handle in the pointer to ViewRect

To correct it, I would suggest the following in MyTENew:

TEHandle MyTENew(Dest, View)
Rect *Dest, *View;
{
asm{
 UNLK A6;Balance for Link from compilr
 MOVE (A7)+,A3 ;POP return addr. to safe reg.
 JSR  TENew ;Jump to ROM
 JUMP (A3); Return
 }
}

Animated Cursors

David Stoops

Philadelphia, PA

I am an engineering undergraduate at Drexel University, a school considerably devoted to Apple’s University Consortium. I am writing in response to the heated discussion of animated cursors in the March and May ’88 issues. In a rare moment of inspiration, I realized that animating the watch is a chore ideally suited for implementation as a VBLTask. Referring back to the June ’86 MacTutor, which contains an article on screen switching animation using the Vertical Retrace Manager, I wrote the enclosed snipets of Lightspeed Pascal code that seems to do the job.

The routines make use of the ‘acur’ resource, which should be copied along with the necessary ‘CURS’ resources from the Finder into the project resource file. To use these routines, first call InitWatch to get handles to the cursors, then call StartWatch to display the animated watch while your program goes on about its business. A final call to StopWatch removes the task from the vertical retrace queue to halt animation. I find this scheme does a better job of animating the watch than that emploed by the Finder (notice how poorly the watch hands move during lengthy I/O operations under the Finder). Hope this proves useful.

unit WatchGlobals

interface

type
 acur = record
 whichWatch : longint;
 Watch : array[1..8] of CursHandle;
 end;
 acurPtr = ^acur;
 acurHandle = ^acurPtr;

var
 currentWatch : integer;
 WatchList : acurHandle;
 VBL : VBLTask;

implementation

end.


unti WatchUtlities;

interface

uses
 WatchGlobals;

procedure InitWatch;
procedure StartWatch;
procedure StopWatch;

implementation

procedure InitWatch; {Get the watch CursHandles}
 var
 watchcount : integer;
begin
 WatchList := acurHandle(GetResource(‘acur’,0)); 
 {Will crash if ‘acur’ isn’t available’}
 with WatchList^^ do
 begin
 for watchcount := 1 to 8 do
 GetCursor(HiWord(longint(Watch[watchcount])));
 whichWatch := 0;
 end;
end;

procedure AnimateWatch; {Our VBL routine}
begin
 SetUpA5;
 with WatchList^^ do
 begin
 if whichWatch >= 8 then
 whichWatch := 1
 else
 whichWatch := whichWatch + 1;
 SetCursor(Watch[whichWatch]^^);
 end;
 VBL.vblCount :=10;
 RestoreA5;
end;

procedure StartWatch;
 {Install our task in the vertical retrace queue}
var
 err : OSErr;
begin
 with VBL do
 begin
 qType := Integer(vType);
 vblAddr := @AnimateWatch;
 vblCount := 10; {Update watch every 10 ticks}
 vblPhase := 0;
 err := VInstall(@VBL);
 end;
end;

procedure StopWatch;
{remove our task from the vertical retrace queue}
var
 err : OSErr;
begin
 err := VRemove(@VBL);
end;

end.
 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Tor Browser 11.5.8 - Anonymize Web brows...
Using Tor Browser you can protect yourself against tracking, surveillance, and censorship. Tor was originally designed, implemented, and deployed as a third-generation onion-routing project of the U.... Read more
Alarm Clock Pro 15.0 - $19.95 (91% off)
Alarm Clock Pro isn't just an ordinary alarm clock. Use it to wake you up in the morning, send and compose e-mails, remind you of appointments, randomize the iTunes selection, control an internet... Read more
Google Chrome 107.0.5304.121 - Modern an...
Google Chrome is a Web browser by Google, created to be a modern platform for Web pages and applications. It utilizes very fast loading of Web pages and has a V8 engine, which is a custom built... Read more
calibre 6.9.0 - Complete e-book library...
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 librarian... Read more
Safari Technology Preview 16.4 - The new...
Safari Technology Preview contains the most recent additions and improvements to WebKit and the latest advances in Safari web technologies. And once installed, you will receive notifications of... Read more
FileZilla 3.62.2 - Fast and reliable FTP...
FileZilla (ported from Windows) is a fast and reliable FTP client and server with lots of useful features and an intuitive interface. The FileZilla Client not only supports FTP, but also FTP over TLS... Read more
djay Pro 4.0.13 - Transform your Mac int...
djay Pro provides a complete toolkit for performing DJs. Its unique modern interface is built around a sophisticated integration with iTunes and Spotify, giving you instant access to millions of... Read more
Opera 93.0.4585.21 - 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
AppCleaner 3.6.6 - Uninstall your apps e...
AppCleaner allows you to uninstall your apps easily. It searches the files created by the applications and you can delete them quickly. Supports macOS Ventura. Fixed an issue causing failed updates... Read more
QuickBooks 21.0.7.1248 - Financial manag...
QuickBooks 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. Built for... Read more

Latest Forum Discussions

See All

‘Top Hunter Roddy & Cathy’ Review –...
The NEOGEO is generally characterized by, with only a few notable exceptions, fighting games and Metal Slug. Within a couple of years of its launch, the vast majority of the output on the console seemed to be mining (quite successfully) a few... | Read more »
SwitchArcade Round-Up: Reviews Featuring...
Hello gentle readers, and welcome to the SwitchArcade Round-Up for November 28th, 2022. In today’s article, we’ve got a pair of reviews to check out. Full reviews of Pokemon Scarlet and Violet and The Oregon Trail are waiting for you to read. There’... | Read more »
‘OPUS: Echo of Starsong’ Interview: Port...
With OPUS: Echo of Starsong ($8.99) having finally launched on iOS after hitting PC and consoles, I had a chance to talk to Scott Chen who is the co-founder and executive producer of Sigono. In our chat, I touched on topics like game subscription... | Read more »
Best iPhone Game Updates: ‘Rush Rally 3’...
Hello everyone, and welcome to the week! It’s time once again for our look back at the noteworthy updates of the last seven days. As November breaths its last, the holiday season is right around the corner. That means we should start seeing more... | Read more »
‘Total Football’ is an Arcade-Style Socc...
GALA SPORTS recently launched its brand new soccer title, Total Football, and, true to its name, it is a pure arcade-style soccer game in the same vein as FIFA Mobile and PES Mobile. It also features official licensing from FIFPro and Manchester... | Read more »
Genshin Impact will recieve two new char...
HoYoverse has announced that Genshin Impacts version 3.3 will be arriving on December 7th. Titled All Senses Clear, All Existence Void, the update will bring two powerful new characters and a brand new card-based minigame. [Read more] | Read more »
‘Wreckfest’ Mobile Compared With Console...
HandyGames’ mobile version of Bugbear’s demolition derby-style racer Wreckfest ($9.99) released on iOS and Android recently, and we featured it as our Game of the Week. | Read more »
Black Friday Deals Here – The TouchArcad...
After taking a couple of weeks off we return on this glorious Black Friday with another episode of The TouchArcade Show. We get into a big discussion about virtual assistants like Alexa, Siri, and Google, and their place in the greater smarthome... | Read more »
TouchArcade Game of the Week: ‘Station 1...
I’m a big fan of Glitch Games and their unique brand of point-and-click adventure/escape room/puzzle games, and while they’re a tiny outfit and there’d typically be a couple years gap in-between their new releases, they were always worth the wait.... | Read more »
SwitchArcade Round-Up: ‘Super Lone Survi...
Hello gentle readers, and welcome to the SwitchArcade Round-Up for November 25th, 2022. Today we look at the remaining releases for the week, and I’ll be honest with you: it’s not a great assortment. Still, there are at least a couple of things... | Read more »

Price Scanner via MacPrices.net

Cyber Monday: 24″ Apple M1 iMacs for $150 off...
Amazon has Apple’s 24″ M1 iMacs on Black Friday sale for $150 off MSRP. Their prices are currently the lowest available for new iMacs among the Apple retailers we track: – 24″ M1 iMacs (8-Core CPU/7-... Read more
Cyber Monday Sale: 25% off Apple MagSafe acce...
Apple retailers are offering MagSafe accessories for up to 25% off MSRP for Cyber Monday. Here are the best deals available, currently from Verizon and Amazon: (1) Verizon has Apple MagSafe Chargers... Read more
Cyber Monday Sale: Apple AirPods for up to $1...
Looking for Apple AirPods, AirPods Pro, or AirPods Max this Cyber Monday? Look no further than our Apple AirPods Price Tracker. We track prices from 20+ Apple retailers and update the tracker... Read more
Final day for Apple’s Black Friday/Cyber Mond...
CYBER MONDAY Apple’s four day Black Friday/Cyber Monday 2022 event is now live and will run from November 25, 2022 to November 28, 2022 (ends today!). Receive a free $100-$250 Apple Gift Card with... Read more
Cyber Monday: Apple 13″ M2 MacBook Airs for $...
Apple retailers have posted their Cyber Monday prices on 13″ MacBook Airs. Take up to $200 off MSRP on M2-powered Airs with these sales with prices starting at only $1049. Free shipping is available... Read more
The best Cyber Monday iPhone sale? This $500...
If you switch to Xfinity Mobile and open a new line of service, they will take $500 off the price of a new iPhone, no trade-in required. This is the best no trade-in Cyber Monday Apple iPhone 14 deal... Read more
Cyber Monday Sale: Apple 16″ MacBook Pros for...
Amazon is offering $500 off MSRP discounts on Apple 16″ MacBook Pros with M1 Pro CPUs as part of their Cyber Monday sale. Their prices are the lowest available for these models from any Apple... Read more
Cyber Monday Sale: Apple 14″ MacBook Pros for...
Amazon is offering $300-$500 off MSRP discounts on Apple 14-inch MacBook Pros with M1 Pro CPUs as part of their Cyber Monday sale. Their prices are the lowest available for these models from any... Read more
Cyber Monday Sale: Apple Watch Ultra for $60...
Amazon has Apple Watch Ultra models (Alpine Loop, Trail Loop, and Opean Bans) on sale for $60 off MSRP as part of their Cyber Monday sale, each including free shipping, reducing the price for an... Read more
Cyber Monday MacBook Sale: 13″ M1 Apple MacBo...
Amazon has Apple 13″ M1 MacBook Airs back on sale for $200 off MSRP, starting at only $799, for Cyber Monday 2022. Their prices are the lowest available for new MacBooks this Cyber Monday. Stock may... Read more

Jobs Board

*Apple* Electronic Repair Technician - PlanI...
…a highly motivated individual to join our Production Department as an Apple Electronic Repair Technician. The computer repair technician will diagnose, assemble, Read more
Product Manager II - *Apple* - DISH (United...
…you will be doing We seek an ambitious, data-driven thinker to assist the Apple Product Development team as our new Retail Wireless division continues to grow and Read more
Staff Engineer 5G Protocol, *Apple* - DISH...
…metrics. Essential Functions and Responsibilities for a Staff Engineer 5G protocol( Apple ) Knowledge of 5G and 4G/LTE protocols and system architectures Experience Read more
Cashier - *Apple* Blossom Mall - JCPenney (...
Cashier - Apple Blossom Mall Location:Winchester, VA, United States (https://jobs.jcp.com/jobs/location/191170/winchester-va-united-states) - Apple Blossom Mall Read more
Omnichannel Associate - *Apple* Blossom Mal...
Omnichannel Associate - Apple Blossom Mall Location:Winchester, VA, United States (https://jobs.jcp.com/jobs/location/191170/winchester-va-united-states) - Apple Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.