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

Adobe InCopy CC 2018 13.0.0.123 - Create...
InCopy 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 InCopy customer). Adobe InCopy CC 2018, ideal for large team projects... Read more
MacFamilyTree 8.2.5 - Create and explore...
MacFamilyTree gives genealogy a facelift: modern, interactive, convenient and fast. Explore your family tree and your family history in a way generations of chroniclers before you would have loved.... Read more
Hopper Disassembler 4.3.2- - Binary disa...
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
MacFamilyTree 8.2.5 - Create and explore...
MacFamilyTree gives genealogy a facelift: modern, interactive, convenient and fast. Explore your family tree and your family history in a way generations of chroniclers before you would have loved.... Read more
Hopper Disassembler 4.3.2- - Binary disa...
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
GraphicConverter 10.5.1 - $39.95
GraphicConverter is an all-purpose image-editing program that can import 200 different graphic-based formats, edit the image, and export it to any of 80 available file formats. The high-end editing... Read more
Delicious Library 3.7 - Import, browse a...
Delicious Library allows you to import, browse, and share all your books, movies, music, and video games with Delicious Library. Run your very own library from your home or office using our... Read more
Adobe Animate CC 2017 18.0.0.107 - Anima...
Animate 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 Flash Professional customer). Animate CC 2018 (was Flash CC) lets you... Read more
Adobe After Effects CC 2018 15.0 - Creat...
After Effects 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 After Effects customer). The new, more connected After Effects CC... Read more
Adobe Premiere Pro CC 2018 12.0.0 - Digi...
Premiere Pro 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 Premiere Pro customer). Adobe Premiere Pro CC 2018 lets you edit... Read more

Darts of Fury guide - how to rise in the...
Darts of Fury is a new, immensely absorbing darts game from indie studio Yakuto. It's darts in its purest form, but collectible darts and other upgrades give this game an addictive edge that's hard to shake. As your progress out of the beginner... | Read more »
ICEY (Games)
ICEY 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: ICEY is a 2D side-scrolling action game. As you follow the narrator's omnipresent voice, you will see through ICEY's eyes and learn the... | Read more »
The best new games we played this week -...
We've made it, folks. Another weekend is upon us. It's time to sit back and relax with the best new releases of the week. Puzzles, strategy RPGs, and arcade games abound this week. There's a lot of quality stuff to unpack this week, so let's hop... | 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 »

Price Scanner via MacPrices.net

Save $100 on 13″ MacBook Airs, prices start a...
Adorama has 2017 13″ MacBook Airs on sale today for $100 off MSRP including free shipping. Adorama charges NY & NJ sales tax only: – 13″ 1.8GHz/128GB MacBook Air (MQD32LL/A): $899, $100 off MSRP... Read more
1.4GHz Mac mini available for $399, $100 off...
TigerDirect has the 1.4GHz Mac mini on sale today for $399 including free shipping. Their price is $100 off MSRP, and it’s the lowest price available for this model. Although currently out of stock,... Read more
21″ 2.3GHz iMac on sale for $999, save $100
MacMall has the 21″ 2.3GHz iMac (MMQA2LL/A) on sale today for $999 including free shipping. Their price is $100 off MSRP, and it’s the lowest price available for this model. Read more
12″ iPad Pros on sale for $50 off MSRP, no ta...
Adorama has 12″ iPad Pros on sale today for $50 off MSRP. Shipping is free, and Adorama charges sales tax in NY & NJ only: – 12″ 64GB iPad Pro: $749, save $50 – 12″ 256GB iPad Pro: $899, save $50... Read more
9″ iPads on sale for $30 off, starting at $29...
MacMall has 9″ iPads on sale for $30 off including free shipping: – 9″ 32GB iPad: $299 – 9″ 128GB iPad: $399 Read more
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

Jobs Board

Project Engineer, *Apple* Education Profess...
Project Engineer, Apple Education Professional Services Job Number: 113143353New York City, New York, United StatesPosted: Oct. 17, 2017Weekly Hours: 40.00 Job Read more
Commerce Software Engineer, *Apple* Media P...
Commerce Software Engineer, Apple Media Products Job Number: 113092072New York City, New York, United StatesPosted: Oct. 19, 2017Weekly Hours: 40.00 Job Summary With Read more
Engineering Manager, *Apple* Retail Enginee...
# Engineering Manager, Apple Retail Engineering Job Number: 58139948 Santa Clara Valley, California, United States Posted: 20-Oct-2017 Weekly Hours: 40.00 **Job Read more
*Apple* Retail - Multiple Positions - Apple,...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
Commerce Engineer, *Apple* Media Products -...
Commerce Engineer, Apple Media Products (New York City) Job Number: 113028813New York City, New York, United StatesPosted: Sep. 20, 2017Weekly Hours: 40.00 Job Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.