TweetFollow Us on Twitter

ViewIt
Volume Number:8
Issue Number:7
Column Tag:Tools of the Trade

Faceware's ViewIt

Differs from other interface designers and toolbox extenders in its simple code writing.

By Philip Borenstein, MacTutor Regular Contributing Author

What is ViewIt?

The promotional literature that FaceWare puts out describes ViewIt as a window designer and manager. That description is accurate, but it makes ViewIt sound like yet another interface design kit. FaceWare also describes ViewIt as extensions to the Macintosh Dialog Manager and Control Manager. And that’s true, too. What these descriptions don’t convey is how different ViewIt is from other interface designers and toolbox extenders.

Like other interface-building tools, ViewIt lets you create windows and lay out controls in those windows. But instead of generating source code that you customize, ViewIt uses code resources that already know how to manage those windows and controls. This approach has some clear advantages and some drawbacks. Depending on the kinds of applications you write, the advantages may outweigh the drawbacks.

The main advantage is that the code that you write is remarkably simple. Most of what you do is set up a window, call the main event loop routine, and check for hits in your controls. In general, you don’t need to concern yourself with the Macintosh Toolbox. The main disadvantage is that most of the behavior is locked away in code resources, so your application may be carrying around extra baggage that you don’t really need.

What’s in the package?

ViewIt works with most popular Macintosh development environments. The commercial version comes with demo programs for THINK C, THINK Pascal (both of which can be used with MPW C and MPW Pascal), Absoft Fortran, Language Systems Fortran, and MacFortran. The THINK C and THINK Pascal programs come with ready-to-use projects. Two separate utilities let you use FaceWare modules with HyperCard and Prograph.

The ViewIt package consists of three parts: FaceIt, ViewIt, and UtilIt. ViewIt is the part of the system that lets you lay out controls in windows. FaceIt is the part of the system that deals with the main event loop, the menu bar, and other program-wide features. UtilIt consists of utility routines used by FaceIt, ViewIt, and by your own program.

You can use the ViewIt module without the FaceIt module to design modal dialog boxes. With FaceIt you get automatic support for modeless windows. The documentation does tell you how you can use ViewIt modeless windows in programs that have an existing event loop, but if you’re starting from scratch, you may not want to go through the trouble.

All the modules that make up ViewIt live in a resource file called FaceWare. You can place this file in your System folder, so all your ViewIt-based applications can share it, or you can copy resources from the FaceWare file into your application to create stand-alone applications.

ViewIt costs $95. FaceWare distributes a shareware version that includes nearly everything that comes in the commercial package. You can use the shareware version for 30 days. After that, you either get rid of it, or you buy the commercial package.

How does it work?

Instead of customizing source code, you make calls to a dispatching routine called FaceIt() which loads the appropriate modules for program-wide behavior like cutting, pasting, and printing and for control-specific behavior. In addition the standard Macintosh control manager, which uses CDEFs and CNTLs, ViewIt uses its own control drivers (stored in FCMD resources) and control descriptions (stored in FCTL resources). These FCMDs are the code resources that do all the work.

To create windows and lay out controls, you don’t use a separate application. You don’t even need to use ResEdit. Instead, you lay out the controls while your application is running. Once you’ve created a window, you press the Command-Shift-Option keys to enter ViewIt’s editing mode. In this mode, you can add or delete new controls and edit existing controls. To see how they’ll work, you just press the Enter key and you’re back in run mode again.

Since the edit mode is part of ViewIt (it’s stored in the FaceWare file), you can fine tune your user interface without using your development environment. Suppose you’re doing a demo for your users, and they say, “This button should be red. That menu should be over there.” All you have to do is go into edit mode, make the changes, and try them out. ViewIt comes with a smaller FaceWare file without the edit mode that you can use when your application is finished.

The FaceWare file with the on-line editing support takes up about 1 MB, and the file without the on-line editing support is about 440K.

This picture shows one of the dialogs used for editing a control. The Driver Help button brings up another window that contains the on-line help for buttons.

What kinds of interface elements does ViewIt handle?

In addition to the standard controls that the Macintosh Dialog Manager provides (buttons, check boxes, radio buttons, static text, and editable text) ViewIt also gives you pop-up menus, picture-based palettes, graphic buttons based on PICTs, ICONs, and SICNs, dials, and more esoteric controls like a help text viewer and a scrap viewer.

You can specify the color and framing style of any control. For text-based controls, you can set the font, size, style, and text color. You can have buttons draw their text in bold, outline Palatino, or you can have right-justified check boxes with the check box on the right side of the text. Most controls have several variations. Pop-up menus, for example, come in several varieties. Some menus behave like menus in the main menu bar. Some menus check only one item at a time while others have several items checked.

Every control belongs to a view, which is kind of a meta-control, and a window can have several views. Views can be longer than the window they belong to, and it’s easy to add both horizontal and vertical scroll bars to them. Views let you group controls, so you can move them around as a unit. Since you can show and hide views, you can use them for dialogs that have multiple pages.

ViewIt makes a distinction between a control’s appearance and its behavior. This distinction is useful for picture-based controls. For instance, you can have an icon behave like a button, so it highlights while the mouse button is pressed on it. Or you can have several icons behave like radio buttons where only one icon of a group is highlighted at a time. Of course, some combinations, like editable buttons, don’t work because the CDEF or FCMD doesn’t support a particular behavior, and other combinations, like check boxes that behave like radio buttons, will get you into trouble with the user interface police.

If you want to make a control behave a little (or a lot) differently, ViewIt gives you hooks that let you intercept virtually everything a control does.

In traditional dialog box programming, when you have a list of radio buttons, check boxes, or other controls, you need to set the controls’ values from one of your data structures. When the user dismisses the dialog, you need to get the value of each control and set your data structure accordingly. ViewIt has a nice feature called Data Linking that does this for you automatically. When you create a window, you pass ViewIt the address of a record. When you design your controls, you give the offset into the record where the value is stored. ViewIt takes care of doing all the numeric to string conversions-even for real numbers.

Of course, you don’t have to use Data Linking. You can have controls report when they’ve been hit. ViewIt uses a mechanism similar to menu events to tell you which control has been hit. ViewIt variables tell you which control, in which view, and in which window received the click. The ViewIt routines let you get the state of the control so you can tell what’s in an editable field, whether a check box is on or off, and so forth.

This picture shows a ViewIt window with two views in editing mode. The left view is a scrolling view that shows assorted controls. The right view is a Help Control that shows text.

Documentation

All of the ViewIt documentation is on-line, and it’s always available when you’re in edit mode. When you’re editing a specific control, you can click on a button to get its documentation. The documentation is right where you need it when you’re working, and it doesn’t clutter your desk. A printed manual, though, would have made learning ViewIt a bit easier.

With printed documentation you can flip through the pages to get a sense of what a piece of software is about, and even the manual’s physical size gives you a hint about the complexity of the software. With on-line manuals a list of topics in a menu may refer to half a kilobyte of text or two half a megabyte text. There’s no way to know.

The demo programs that come with ViewIt are complete in the sense that they show off virtually every feature, but a little hand-holding would have been nice. You can copy controls from the ViewIt demos and paste them into your own application, or you can try modifying them to see how different settings work.

Who is ViewIt for?

ViewIt is ideal for in-house programmers and consultants who need to write Macintosh applications quickly. Often, these programmers need to respond quickly to requests for new features, and ViewIt’s edit mode makes it easy for the programmer and the user to collaborate on the user interface. In-house programmers can take advantage of the fact that many ViewIt-based programs can share the same FaceWare file. This arrangement keeps the application size small.

ViewIt is also useful for programmers who have existing programs that they need to port to the Macintosh. ViewIt is much easier to learn to use than the Macintosh Toolbox. It’s certainly easier to learn ViewIt than it is to learn object-oriented programming, and for vanilla Macintosh programs, ViewIt handles most of the Macintosh housekeeping tasks.

Commercial (and shareware) software vendors may find that ViewIt’s overhead makes ViewIt-based applications larger than hand-rolled applications, particularly for small applications. It is possible to move only the resources your application uses from the FaceWare file. ViewIt comes with a utility program to do just that.

Summary

ViewIt is a surprisingly powerful interface-builder. Its approach to the problem is considerably different from the other tools on the market, so it may be difficult to get into it at first. For non-Macintosh programmers who need to put together a Macintosh application in a hurry, ViewIt takes care of most of the standard housekeeping chores. ViewIt doesn’t require you to learn object-oriented programming or a class library.

The only way you’ll be able to decide whether ViewIt will work for your application is to try it. You can use the shareware version of ViewIt for 30 days, and if you like it, you’re obligated to buy the full version. If not, you can wipe it off your disk, and program like you programmed before.

For more information

FaceWare

1310 N. Broadway, Urbana, IL 61801

217/328-5842 • AppleLink: D1323

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Chromium 75.0.3770.142 - Fast and stable...
Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all Internet users to experience the web. Version 75.0.3770.142: Release notes were... Read more
Viber 11.1.0 - Send messages and make fr...
Viber lets you send free messages and make free calls to other Viber users, on any device and network, in any country! Viber syncs your contacts, messages and call history with your mobile device, so... Read more
Wireshark 3.0.3 - Network protocol analy...
Wireshark is one of the world's foremost network protocol analyzers, and is the standard in many parts of the industry. It is the continuation of a project that started in 1998. Hundreds of... Read more
DEVONthink Pro 3.0beta4 - Knowledge base...
DEVONthink Pro is your essential assistant for today's world, where almost everything is digital. From shopping receipts to important research papers, your life often fills your hard drive in the... Read more
Adobe Creative Cloud 4.9.0.512 - Access...
Adobe Creative Cloud costs $20.99/month for a single app, or $52.99/month for the entire suite. Introducing Adobe Creative Cloud desktop applications, including Adobe Photoshop CC and Illustrator CC... Read more
SketchUp 19.1.174 - Create 3D design con...
SketchUp is an easy-to-learn 3D modeling program that enables you to explore the world in 3D. With just a few simple tools, you can create 3D models of houses, sheds, decks, home additions,... Read more
ClamXav 3.0.12 - Virus checker based on...
ClamXav is a popular virus checker for OS X. Time to take control ClamXAV keeps threats at bay and puts you firmly in charge of your Mac’s security. Scan a specific file or your entire hard drive.... Read more
BetterTouchTool 3.151 - Customize multi-...
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
FontExplorer X Pro 6.0.9 - Font manageme...
FontExplorer X Pro is optimized for professional use; it's the solution that gives you the power you need to manage all your fonts. Now you can more easily manage, activate and organize your... Read more
Dropbox 77.4.131 - Cloud backup and sync...
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 keeps them up-to-date between systems... Read more

Latest Forum Discussions

See All

Upcoming visual novel Arranged shines a...
If you’re in the market for a new type of visual novel designed to inform and make you think deeply about its subject matter, then Arranged by Kabuk Games could be exactly what you’re looking for. It’s a wholly unique take on marital traditions in... | Read more »
TEPPEN guide - The three best decks in T...
TEPPEN’s unique take on the collectible card game genre is exciting. It’s just over a week old, but that isn’t stopping lots of folks from speculating about the long-term viability of the game, as well as changes and additions that will happen over... | Read more »
Intergalactic puzzler Silly Memory serve...
Recently released matching puzzler Silly Memory is helping its fans with their intergalactic journeys this month with some very special offers on in-app purchases. In case you missed it, Silly Memory is the debut title of French based indie... | Read more »
TEPPEN guide - Tips and tricks for new p...
TEPPEN is a wild game that nobody asked for, but I’m sure glad it exists. Who would’ve thought that a CCG featuring Capcom characters could be so cool and weird? In case you’re not completely sure what TEPPEN is, make sure to check out our review... | Read more »
Dr. Mario World guide - Other games that...
We now live in a post-Dr. Mario World world, and I gotta say, things don’t feel too different. Nintendo continues to squirt out bad games on phones, causing all but the most stalwart fans of mobile games to question why they even bother... | Read more »
Strategy RPG Brown Dust introduces its b...
Epic turn-based RPG Brown Dust is set to turn 500 days old next week, and to celebrate, Neowiz has just unveiled its biggest and most exciting update yet, offering a host of new rewards, increased gacha rates, and a brand new feature that will... | Read more »
Dr. Mario World is yet another disappoin...
As soon as I booted up Dr. Mario World, I knew I wasn’t going to have fun with it. Nintendo’s record on phones thus far has been pretty spotty, with things trending downward as of late. [Read more] | Read more »
Retro Space Shooter P.3 is now available...
Shoot-em-ups tend to be a dime a dozen on the App Store, but every so often you come across one gem that aims to shake up the genre in a unique way. Developer Devjgame’s P.3 is the latest game seeking to do so this, working as a love letter to the... | Read more »
Void Tyrant guide - Guildins guide
I’ve still been putting a lot of time into Void Tyrant since it officially released last week, and it’s surprising how much stuff there is to uncover in such a simple-looking game. Just toray, I finished spending my Guildins on all available... | Read more »
Tactical RPG Brown Dust celebrates the s...
Neowiz is set to celebrate the summer by launching a 2-month long festival in its smash-hit RPG Brown Dust. The event kicks off today, and it’s divided into 4 parts, each of which will last two weeks. Brown Dust is all about collecting, upgrading,... | Read more »

Price Scanner via MacPrices.net

Verizon is offering a 50% discount on iPhone...
Verizon is offering 50% discounts on Apple iPhone 8 and iPhone 8 Plus models though July 24th, plus save 50% on activation fees. New line required. The fine print: “New device payment & new... Read more
Get a new 21″ iMac for under $1000 today at t...
B&H Photo has new 21″ Apple iMacs on sale for up to $100 off MSRP with models available starting at $999. These are the same iMacs offered by Apple in their retail and online stores. Shipping is... Read more
Clearance 2017 15″ 2.8GHz Touch Bar MacBook P...
Apple has Certified Refurbished 2017 15″ 2.8GHz Space Gray Touch Bar MacBook Pros available for $1809. Apple’s refurbished price is currently the lowest available for a 15″ MacBook Pro. An standard... Read more
Clearance 12″ 1.2GHz MacBook on sale for $899...
Focus Camera has clearance 12″ 1.2GHz Space Gray MacBooks available for $899.99 shipped. That’s $400 off Apple’s original MSRP. Focus charges sales tax for NY & NJ residents only. Read more
Get a new 2019 13″ 2.4GHz 4-Core MacBook Pro...
B&H Photo has new 2019 13″ 2.4GHz MacBook Pros on sale for up to $150 off Apple’s MSRP. Overnight shipping is free to many addresses in the US: – 2019 13″ 2.4GHz/256GB 6-Core MacBook Pro Silver... Read more
AirPods with Wireless Charging Case now on sa...
Amazon has extended their Prime Day savings on Apple AirPods by offering AirPods with the Wireless Charging case for $169.99. That’s $30 off Apple’s MSRP, and it’s the cheapest price available for... Read more
New 2019 15″ MacBook Pros on sale for $200 of...
B&H Photo has the new 2019 15″ 6-Core and 8-Core MacBook Pros on sale for $200 off Apple’s MSRP. Overnight shipping is free to many addresses in the US: – 2019 15″ 2.6GHz 6-Core MacBook Pro Space... Read more
Amazon drops prices, now offers clearance 13″...
Amazon has new dropped prices on clearance 13″ 2.3GHz Dual-Core non-Touch Bar MacBook Pros by $200 off Apple’s original MSRP, with prices now available starting at $1099. Shipping is free. Be sure to... Read more
2018 15″ MacBook Pros now on sale for $500 of...
Amazon has dropped prices on select clearance 2018 15″ 6-Core MacBook Pros to $500 off Apple’s original MSRP. Prices now start at $1899 shipped: – 2018 15″ 2.2GHz Touch Bar MacBook Pro Silver: $1899.... Read more
Price drop! Clearance 12″ 1.2GHz Silver MacBo...
Amazon has dropped their price on the recently-discontinued 12″ 1.2GHz Silver MacBook to $849.99 shipped. That’s $450 off Apple’s original MSRP for this model, and it’s the cheapest price available... Read more

Jobs Board

Best Buy *Apple* Computing Master - Best Bu...
**696259BR** **Job Title:** Best Buy Apple Computing Master **Job Category:** Store Associates **Location Number:** 001076-Temecula-Store **Job Description:** The Read more
Business Development Manager, *Apple* Globa...
Business Development Manager, Apple Global Tampa, FL, US Requisition Number:73805 As a Global Apple Business Development Manager at Insight, you proactively Read more
*Apple* Systems Architect/Engineer, Vice Pre...
…its vision to be the world's most trusted financial group. **Summary:** Apple Systems Architect/Engineer with strong knowledge of products and services related to Read more
*Apple* IOS Systems Engineer - Randstad (Uni...
Apple IOS Systems Engineer **job details:** + location:Irvine, CA + salary:$45 - $55 per hour + date posted:Tuesday, July 16, 2019 + job type:Temp to Perm + Read more
Business Development Manager, *Apple* Globa...
Business Development Manager, Apple Global Tampa, FL, US Requisition Number:73805 As a Global Apple Business Development Manager at Insight, you proactively Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.