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

 
AAPL
$112.65
Apple Inc.
+3.24
MSFT
$47.52
Microsoft Corpora
+1.78
GOOG
$511.10
Google Inc.
+6.21

MacTech Search:
Community Search:

Software Updates via MacUpdate

Mellel 3.3.7 - Powerful word processor w...
Mellel is the leading word processor for OS X and has been widely considered the industry standard since its inception. Mellel focuses on writers and scholars for technical writing and multilingual... Read more
ScreenFlow 5.0.1 - Create screen recordi...
Save 10% with the exclusive MacUpdate coupon code: AFMacUpdate10 Buy now! ScreenFlow is powerful, easy-to-use screencasting software for the Mac. With ScreenFlow you can record the contents of your... Read more
Simon 4.0 - Monitor changes and crashes...
Simon monitors websites and alerts you of crashes and changes. Select pages to monitor, choose your alert options, and customize your settings. Simon does the rest. Keep a watchful eye on your... Read more
BBEdit 11.0.2 - 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
ExpanDrive 4.2.1 - Access cloud storage...
ExpanDrive builds cloud storage in every application, acts just like a USB drive plugged into your Mac. With ExpanDrive, you can securely access any remote file server directly from the Finder or... Read more
Adobe After Effects CC 2014 13.2 - Creat...
After Effects CC 2014 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). After Effects CS6 is still available... Read more
Command-C 1.1.7 - Clipboard sharing tool...
Command-C is a revolutionary app which makes easy to share your clipboard between iOS and OS X using your local WiFi network, even if the app is not currently opened. Copy anything (text, pictures,... Read more
Tidy Up 4.0.2 - Find duplicate files and...
Tidy Up is a complete duplicate finder and disk-tidiness utility. With Tidy Up you can search for duplicate files and packages by the owner application, content, type, creator, extension, time... Read more
Typinator 6.3 - Speedy and reliable text...
Typinator turbo-charges your typing productivity. Type a little. Typinator does the rest. We've all faced projects that require repetitive typing tasks. With Typinator, you can store commonly used... Read more
GraphicConverter 9.5 - Graphics editor w...
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

Latest Forum Discussions

See All

Shift - Photo Filters Designed By You (...
Shift - Photo Filters Designed By You 1.0 Device: iOS Universal Category: Photography Price: $.99, Version: 1.0 (iTunes) Description: | Read more »
Elastic Drums (Music)
Elastic Drums 1.0 Device: iOS iPhone Category: Music Price: $3.99, Version: 1.0 (iTunes) Description: *** Introduction price 3,99$ instead of 7,99$ *** Elastic Drums is a music app with 6 channels of synthesized drum sounds, a step... | Read more »
Fireworks Simulator (Games)
Fireworks Simulator 1.0.8 Device: iOS Universal Category: Games Price: $.99, Version: 1.0.8 (iTunes) Description: *** 50% discount – For a short time only *** You can play Fireworks Simulator on these devices: - iPhone 5, 5s, 5c, 6,... | Read more »
Nicky's Gift (Games)
Nicky's Gift 1.0 Device: iOS Universal Category: Games Price: $.99, Version: 1.0 (iTunes) Description: Everybody! Merry Christmas! There's 48 levels in the game. Let's go! Nicky's Gift | Read more »
The Hit List — Simply Powerful Tasks, To...
The Hit List — Simply Powerful Tasks, To-Dos, Projects, & Reminders 2.0 Device: iOS iPhone Category: Productivity Price: $9.99, Version: 2.0 (iTunes) Description: >> LAUNCH SPECIAL: The Hit List 2 for iPhone is ONLY $9.99... | Read more »
Mahjong Journey Review
Mahjong Journey Review By Jennifer Allen on December 18th, 2014 Our Rating: :: STEADY MATCHINGiPad Only App - Designed for the iPad Aimed at the more laid back gamer, Mahjong Journey isn’t for everyone, but those looking for some... | Read more »
Emoji Type - custom keyboard with predic...
Emoji Type - custom keyboard with predictive emojis 0.4.0 Device: iOS iPhone Category: Utilities Price: $.99, Version: 0.4.0 (iTunes) Description: Emoji Type is custom keyboard for iOS 8 that auto suggests emojis as you type. ABOUT... | Read more »
Game of the Year 2014 – 148Apps Staff Pi...
The end of 2014 is almost here, which can only mean one thing. Okay it can mean a lot of things, but in this specific context it means Game of the Year lists! Which is why the 148Apps staff have all picked their favorites from the past year. And why... | Read more »
UponPixels Review
UponPixels Review By Jennifer Allen on December 18th, 2014 Our Rating: :: CREATIVE TYPOGRAPHYUniversal App - Designed for iPhone and iPad Add cool typography and objects to your photos with the easy to use UponPixels.   | Read more »
The Vikings are Coming! CastleStorm’s Ne...
The Vikings are Coming! CastleStorm’s New Update Adds a Survival Mode Posted by Jessica Fisher on December 18th, 2014 [ permalink ] | Read more »

Price Scanner via MacPrices.net

Save up to $400 on MacBooks with Apple Certif...
The Apple Store has Apple Certified Refurbished 2014 MacBook Pros and MacBook Airs available for up to $400 off the cost of new models. An Apple one-year warranty is included with each model, and... Read more
Save up to $300 on Macs, $30 on iPads with Ap...
Purchase a new Mac or iPad at The Apple Store for Education and take up to $300 off MSRP. All teachers, students, and staff of any educational institution qualify for the discount. Shipping is free,... Read more
iOS and Android OS Targeted by Man-in-the-Mid...
Cloud services security provider Akamai Technologies, Inc. has released, through the company’s Prolexic Security Engineering & Research Team (PLXsert), a new cybersecurity threat advisory. The... Read more
KMI MIDI K-Board Great Gift for Amateur &...
The K-Board is a MIDI Nano keyboard for music creation for iPad, Android, And computers; the easiest way to make music with iPads & Android tablets, and Mac, Windows, or Linux computers. Ultra-... Read more
Amazon offers 15-inch 2.2GHz Retina MacBook P...
 Amazon.com has the 15″ 2.2GHz Retina MacBook Pro on sale for $1699 including free shipping. Their price is $300 off MSRP. Stock is limited, so act now if you’re interested. Read more
Holiday sales continue: MacBook Pros for up t...
 B&H Photo has new MacBook Pros on sale for up to $300 off MSRP as part of their Holiday pricing. Shipping is free, and B&H charges NY sales tax only: - 15″ 2.2GHz Retina MacBook Pro: $1699... Read more
Holiday sale: Mac minis available for up to $...
 B&H Photo has new 2014 Mac minis on sale for up to $80 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 1.4GHz Mac mini: $459 $40 off MSRP - 2.6GHz Mac mini: $629 $70 off... Read more
Google Search App For iOS Gets A Major Makeov...
Google has given iOS users an early Christmas present with a substantial update of it’s not-very-often-upgraded Google Search app. Google Search has been my go-to tool for Web searches since it was... Read more
ShopKeep Apple Pay And Chip Card Reader Avail...
ShopKeep, a cloud-based technology provider to more than 10,000 small business owners to manage retail shops and restaurants with iPads, has released its new Apple Pay and chip card reader. This... Read more
Holiday sale! 27-inch 5K iMac for $2299, save...
 B&H Photo has the 27″ 3.5GHz 5K iMac in stock today and on sale for $2299 including free shipping plus NY sales tax only. Their price is $200 off MSRP, and it’s the lowest price available for... Read more

Jobs Board

Project Manager, *Apple* Financial Services...
**Job Summary** Apple Financial Services (AFS) offers consumers, businesses and educational institutions ways to finance Apple purchases. We work with national and Read more
*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...
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
*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
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.