TweetFollow Us on Twitter

3D Controls in Sys 7 Apps

Volume Number: 13 (1997)
Issue Number: 6
Column Tag: Look And Feel

Adding 3D Controls to your System 7 App

by Jeff Beeghly

Custom controls can be used to provide Apple's Grayscale Appearance for System 7 applications

Introduction

Applications containing 3D controls are becoming the standard in the computer industry. Users and developers prefer applications which contain a "3D object" look and feel. For some time now, developers have been implementing their own version of 3D controls. The intent of this article is to demonstrate how to effortlessly transform an application from the standard 2D appearance into a 3D appearance.

Transforming Dialogs into the 3D World

By following these simple steps, you can transform your dialog boxes and give them a new "3D look and feel":

  1. Add 3D Buttons CDEF.rsrc to your project. This file is in the source code package which accompanies this article.
  2. Change the content color of every dialog box (and alert box) within your projects' resource from white to gray. If you're using ResEdit, this is accomplished by opening a DLOG resource, changing the color from Default to Custom and changing the content color to light gray (Figure 1).

    Figure 1. Setting the Content Color to Gray Within ResEdit.

    If you're using Resorcerer, this is accomplished by opening a DLOG resource, selecting the Set Dialog Info... menu item, selecting the Window Color Content item, then setting each of the RGB values to 56797 (0xDDDD Hex).

    Figure 2. Setting the Content Color to Gray Within Resorcerer.

  3. Every edit text item within the dialog box must have its background color set to white. This is accomplished by creating a dialog item list color table ('ictb') resource for each dialog. If you're using ResEdit you will have to create an 'ictb' resource that has the same ID as the 'DITL' resource you are working with. ResEdit does not have an 'ictb' editor, so you will have to assemble one by hand using ResEdit's Hex editor. For more information on the 'ictb' resource and its' format, please consult "The Item Color Table Resource" within Inside Macintosh: Toolbox Essentials, or consult the "NewCDialog" topic within THINK Reference.

    If you're using Resorcerer, you will need to select the edit text item, then select the Color and Text Styles... menu item (which will bring up the Color and Text Styles dialog box). Since the default background color is white, the only thing you need to do here is select the Backcolor checkbox.

    Figure 3. Setting the background color of an edit text item within Resorcerer.

  4. Add Update3DDialog.c to your project.
  5. In each dialog of your application, there should be a modal dialog filter. Within each filter, add the function Update3DDialog() to the update switch (Listing 1) and include Update3DDialog.h within the source code.

    Listing 1: ExampleDialogProc

    // Add this include
    #include "Update3DDialog.h"
    
    pascal Boolean ExampleDialogProc(DialogPtr pTheDialog,
    EventRecord *pTheEvent, short *pnItem)
    {
        WindowPtr   pWindow;
        GrafPtr     pOldPort;
        short       nType;
        Handle      hItem;
        Rect        rItem;
    
       switch( pTheEvent->what )
       {
          case updateEvt:
            pWindow = (WindowPtr )pTheEvent->message;
            if(pWindow == (WindowPtr )pTheDialog)
            {
              GetPort(&pOldPort);
              SetPort(pTheDialog);
    
              BeginUpdate(pTheDialog);
              UpdateDialog(pTheDialog, pTheDialog->visRgn);
              DrawDefaultButtonOutline(pTheDialog, OK_ITEM);
              hPic = GetPicture(USER_PIC_ID);
              GetDItem(pTheDialog, USER_ITEM, &nType,
                 &hItem, &rItem);
              DrawPicture(hPic, &rItem);
       
              // Add this function
              Update3DDialog(pTheDialog);
              EndUpdate(pTheDialog);
    
              SetPort(pOldPort);
            }
            break;
             .
             .
             .
    
  6. Recompile and run your application.

What could be simpler?

What's Going on in There?

The CDEF that was added to the project is a modified version of the 3D Buttons CDEF v1.08 written by Zig Zichterman (located at http://www.best.com/~ziggr/ as well as many InfoMac and UMICH ftp mirrors). By adding the 3D Buttons CDEF and giving it a resource ID of 0, the standard system controls (which are contained within the System's CDEF 0) are replaced with the 3D Buttons CDEF when the application is launched. The standard push button, radio button, and check box now contain the new 3D appearance (Figure 4). Please note that the standard controls will only be modified for your application, not system-wide. If you switch to other applications while your application is running, you will notice that the other applications still contain the standard system controls they had before.

Figure 4. 3D Push Button, 3D Radio Button, and 3D Check Box.

Our CDEF is also very intelligent; it knows when it should be drawn in 3D and when it should be drawn in 2D. When the control is drawn, it checks for the following three conditions:

  • Does the machine have color Quickdraw?
  • Is the GDevice in which the control will be drawn set to at least 256 colors?
  • Does the dialog box have a colored background?

If all three conditions are met, the control is drawn in 3D, otherwise the standard 2D control is drawn. Using this convention, dialog boxes only appear in 3D when specifically intended to be that way.

When wouldn't you want dialogs to look 3D? While working on a recent project I noticed a discrepancy within the StandardPutFile dialog box. Every control contained the 3D appearance except the New Folder button. This control is not a standard control and is not overwritten by the added CDEF. In this situation, consistency is more important than having a 3D appearance, so the dialog was left with it's original 2D appearance.

Why Not Use the Original 3D Buttons CDEF?

The original 3D Buttons CDEF is modeled after the suggested 3D style guide described in the article, "Working in the Third Dimension" which appeared in the September 1993 issue of develop (issue 15). Since the publication of this article, Apple has released a document titled "Apple Grayscale Appearance For System 7.5," located at ftp://ftpdev.info.apple.com/Developer_Services/Technical_Documentation/Human_Interface/Apple_Grayscale_Appearance.sit.hqx. The new version of the CDEF incorporates the new Apple Grayscale Appearance guidelines, separates the push button CDEF from the standard controls CDEF, fixes two bugs that were in the original 1.08 code, and includes several project-wide #ifdefs.

The project was also converted from C++ to C. By converting the source from C++ to C, I was able to take out redundant code, redundant code paths, and eliminate a lot of overhead that's inherent with C++. I analyzed the performance of the drawing of the CDEFs and found that the C version of the push button was 30% faster then the C++ version, and the C version of the icon button was 67% faster then the C++ version. An added benefit is that the size of the C CDEFs are smaller than the size of the C++ versions. The downside is that the C version isn't as readable as the C++ version. For more detailed information on the changes that were made, please consult the Read Me file within the 3D Plug&Play:3D CDEFs f folder.

Example 1

Example 1 is a simple dialog demonstrating a little bit of everything. Each of the three button styles are represented and the example also displays the buttons in their disabled state. If you observe the edit text item and the list box item, you will notice that both items contain a 3D rim (Figure 5). The rim has been added to give the appearance of depth to each object. The rim is drawn with the Update3DDialog routine, which parses the DILT of a dialog. The current incarnation of Update3DDialog looks at each item within the DITL list, and draws the rim if the item is an editText, picItem, or userItem.

Figure 5. 3D Rim Around a List Box.

Example 2

One of the purposes of this article is to provide developers an effortless (or near effortless) way to give their dialog boxes a 3D look and feel. To ensure that the routines would be widely usable and not dependent on my methodology or style, I added the routines to several different building blocks. I used TransSkel's DialogSkel example, Metrowerk's CDialogsApp PowerPlant example, a Resorcerer-generated dialog, and a code snippet called Dim Text.

The easiest example to convert was the TransSkel example which required only the added files and modifications listed before. The PowerPlant example was very simple as well, however it is not complete. The PowerPlant example creates windows instead of dialog boxes and 'DITL' resources, so my Update3DDialog routine was useless in this case. Rather than write a class that overrides any of the PowerPlant classes (which has a high chance of conflicting with the other classes), this has been left as an exercise for the reader.

The Resorcerer example was also easy to convert, except I had to create an unique version of Update3DDialog (Update3DDialog-Resorcerer.c). Resorcerer uses user items to display group boxes, and the original update routine draws a 3D rim around user items. Dim Text was also easy to convert, however, some minor modifications were required. For more information on the changes made to each of these projects, please consult the notes file located within each project's folder.

Example 3

Example 3 is an expansion of Example 1. Within Example 3 you may open a 3D or 2D dialog box. Some users may not prefer to have 3D buttons (or may choose their own interface with Mac OS 8). Within the Example 3 application is a preferences dialog. The sole purpose of this dialog box is to change the appearance of the controls from 3D to 2D and back. This is accomplished by using Get1Resource and SetResInfo to move the 3D CDEF resource out (and back into) the CDEF 0 location, and changing the background color of DITL and WIND resources. When the CDEF is not in the 0 location, the standard controls that are built into the System are used instead of our custom CDEF. This technique allows the user to decide upon the appearance of the application.

This technique also allows the application to be compatible with MacOS 8. As stated earlier, the application achieves its 3D look by overriding the standard CDEF 0 that is built into the system. By this same convention, it will probably override any appearance setting the user has set with the Appearance Manager in MacOS 8. By providing this mechanism, the user has the ability to use the advance controls with the current system, and use MacOS 8's customizable controls when it is released.

Example 4

Example 4 demonstrates what you can achieve when you use 3D controls. The example not only incorporates the 3D controls demonstrated earlier, it also contains an Icon button, Group Box, and a Plus/Minus (Spindial) CDEF, all of which can be displayed in 3D (Figure 6) or 2D.

Figure 6. 3D Buttons CDEF along with Icon button, Group Box, and Plus/Minus CDEFs.

In addition to this dialog box, Example 4 also contains dialog boxes which focus on the different kinds of Group Box, Plus/Minus, and Icon Button variations that are available. Of special importance is the Icon Button CDEF. Developers are increasingly incorporating tool pallets within their applications. Within these tool palettes are usually a large number of icon buttons. The behavior of icon buttons typically act as push buttons, yet some icon buttons may act as checkboxes (like Microsoft Word's text alignment buttons) or radio buttons (like Photoshop's Tool palette).

While working on the code for Example 4's Icon Button dialog, I noticed that the icon buttons that were intended to act as checkboxes or radio buttons produced a flickering effect. The problem is when the control is selected and the mouse button is released, the control is sent a redraw message from the system, and the control is drawn in the off position. The code within the application then changed the value of the control and displayed the control in a selected position (Figure 7).

Figure 7. Flicker Producing Drawing Process.

To overcome the unwanted flicker, I added code within the CDEF to handle this special case and I added a new variation number to the Icon Button CDEF. Use variation 3 for a push button style icon button, and variation 4 for a checkbox or radio button style icon button. For example, if the ID of the Icon Button CDEF is 1101, the ProcID of a push button style icon button is 17619 (1101 * 16 + 3 = 17619) and 17620 for a checkbox or radio button style icon button (1101 * 16 + 4 = 17620).

Conclusion

What has been demonstrated here is just the tip of the iceberg. There is plenty of room for development of more 3D controls. There is also room for implementing user interface elements that are controlled by the user. For example, the Preferences dialog could not only relocate the 3D Buttons CDEF, it could change the background color of each dialog and alert back and forth between white and gray.

For More Information

If you are interested in developing CDEFs, I'd suggest the following materials:

  1. 3D Buttons CDEF, by Zig Zichterman, located on http://www.best.com/~ziggr/.
  2. CDEF Template, by Chris Larson, located on ftp://mirrors.apple.com/mirrors/info-mac/dev/src/cdef-template-10.hqx.
  3. Jim's CDEFs, by Jim Stout, located on ftp://mirrors.apple.com/mirrors/info-mac/dev/lib/jims-cdefs-15.hqx.
  4. A Fragment of Your Imagination, by Joe Zobkiw, Adison-Wesley
  5. More Mac Programming Techniques, by Dan Sydow, M&T Books
 

Community Search:
MacTech Search:

Software Updates via MacUpdate

LibreOffice 4.4.1.2 - Free, open-source...
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
Freeway Pro 7.0.3 - Drag-and-drop Web de...
Freeway Pro lets you build websites with speed and precision... without writing a line of code! With its user-oriented drag-and-drop interface, Freeway Pro helps you piece together the website of... Read more
Cloud 3.3.0 - File sharing from your men...
Cloud is simple file sharing for the Mac. Drag a file from your Mac to the CloudApp icon in the menubar and we take care of the rest. A link to the file will automatically be copied to your clipboard... Read more
Cyberduck 4.6.5 - FTP and SFTP browser....
Cyberduck is a robust FTP/FTP-TLS/SFTP browser for the Mac whose lack of visual clutter and cleverly intuitive features make it easy to use. Support for external editors and system technologies such... Read more
Firefox 36.0 - Fast, safe Web browser. (...
Firefox for Mac offers a fast, safe Web browsing experience. Browse quickly, securely, and effortlessly. With its industry-leading features, Firefox is the choice of Web development professionals and... Read more
Thunderbird 31.5.0 - Email client from M...
As of July 2012, Thunderbird has transitioned to a new governance model, with new features being developed by the broader free software and open source community, and security fixes and improvements... Read more
VOX 2.4 - Music player that supports man...
VoxIt just sounds better! The beauty is in its simplicity, yet behind the minimal exterior lies a powerful music player with a ton of features & support for all audio formats you should ever need... Read more
A Better Finder Rename 9.46 - File, phot...
A Better Finder Rename is the most complete renaming solution available on the market today. That's why, since 1996, tens of thousands of hobbyists, professionals and businesses depend on A Better... Read more
WALTR 1.0.9 - Drag-and-drop any media fi...
WALTR is designed to make it easy to upload and convert any music or video file to an iPad or iPhone format for native playback. It supports a huge variety of media file types, including MP3, MP4,... Read more
Default Folder X 4.6.14 - 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 on... Read more

Check Out the Trailer for the Upcoming F...
Check Out the Trailer for the Upcoming FINAL FANTASY: Record Keeper Posted by Jessica Fisher on February 26th, 2015 [ permalink ] DeNA and Square Enix have announced that | Read more »
Legacy Quest is an Upcoming Rouge-like T...
Legacy Quest is an Upcoming Rouge-like That’ll Kill the Whole Family Posted by Jessica Fisher on February 26th, 2015 [ permalink ] Nexon Co. | Read more »
Grudgeball: Enter the Chaosphere Review
Grudgeball: Enter the Chaosphere Review By Jordan Minor on February 26th, 2015 Our Rating: :: MUSCLE MENUniversal App - Designed for iPhone and iPad Regular Show gets an above average game.   | Read more »
Action RPG League of Angels – Fire Raide...
Gaia is being invaded by the Devil Prince and the demonic Devil Army at his disposal, and it’s up to you and your avatar to defeat him in League of Angels – Fire Raiders. Raise a mighty army from hundreds of recruitable angel heroes and take the... | Read more »
Burn Rubber on the Ice With a New Cars:...
Burn Rubber on the Ice With a New Cars: Fast as Lightning Update Posted by Jessica Fisher on February 26th, 2015 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
AdVenture Capitalist Review
AdVenture Capitalist Review By Jordan Minor on February 26th, 2015 Our Rating: :: DAS KAPITALUniversal App - Designed for iPhone and iPad An inadvertent Marxist manifesto.   | Read more »
Monster vs Sheep Review
Monster vs Sheep Review By Jennifer Allen on February 25th, 2015 Our Rating: :: SAMEY FUNUniversal App - Designed for iPhone and iPad What Monster vs Sheep lacks in variety it makes up for with stress relieving fun. At least, for a... | Read more »
Is Your Face Ready for the New Outwitter...
Is Your Face Ready for the New Outwitters 2.0 Trailer? Posted by Jessica Fisher on February 25th, 2015 [ permalink ] One Man Left Studios has announced that their turn-based strategy game, | Read more »
HowToFormat Review
HowToFormat Review By Jennifer Allen on February 25th, 2015 Our Rating: :: USEFUL TIPSiPhone App - Designed for the iPhone, compatible with the iPad Making a presentation and want to get it just right? HowToFormat teaches you how... | Read more »
Thermo Diem Review
Thermo Diem Review By Jennifer Allen on February 25th, 2015 Our Rating: :: GETS TO THE POINTUniversal App - Designed for iPhone and iPad Want to know whether it’s warmer or colder tomorrow? That’s precisely what Thermo Diem will... | Read more »

Price Scanner via MacPrices.net

Apple Takes 89 Percent Share of Global Smartp...
According to the latest research from Strategy Analytics, global smartphone operating profit reached US$21 billion in Q4 2014. The Android operating system captured a record-low 11 percent global... Read more
New Travel Health App “My Travel Health” iOS...
Rochester, Minnesota based Travel Health and Wellness LLC has announced that its new iOS app help safeguard the user’s health when traveling abroad — “My Travel Health” is now available on the Apple... Read more
Sale! MacBook Airs for up to $115 off MSRP
B&H Photo has MacBook Airs on sale for up to $100 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 11″ 128GB MacBook Air: $799 100 off MSRP - 11″ 256GB MacBook Air: $999 $100... Read more
15-inch 2.0GHz Retina MacBook Pro (refurbishe...
The Apple Store has Apple Certified Refurbished previous-generation 15″ 2.0GHz Retina MacBook Pros available for $1489 including free shipping plus Apple’s standard one-year warranty. Their price is... Read more
Wither The iPad mini? End Of The Road Imminen...
AppleDailyReport’s Dennis Sellers predicts that the iPad mini is going to be left to wither on the vine, as it were, and then just allowed to fade away — a casualty of the IPhone 6 Plus and other... Read more
Android and iOS Duopoly Owns 96.3% of Smartph...
IDC reports that Android and iOS inched closer to total domination of the worldwide smartphone market in both the fourth quarter (4Q14) and the calendar year 2014 (CY14). According to data from the... Read more
13-inch 2.4GHz Retina MacBook Pro available f...
MacMall has the 2013 13″ 2.4GHz/128GB Retina MacBook Pro available for $999.99 for a limited time. Shipping is free. Their price is $300 off original MSRP, and it’s the only sub-$1000 new Retina... Read more
Save up to $300 on a new Mac, $30 on an iPad,...
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
Mac minis available for up to $75 off MSRP
MacMall has Mac minis on sale for up to $75 off MSRP including free shipping. Their prices are the lowest available for these models from any reseller: - 1.4GHz Mac mini: $459.99 $40 off - 2.6GHz Mac... Read more
WaterField Unveils Versatile Padded Gear Pouc...
San Francisco manufacturer WaterField Design’s new Padded Gear Pouch is a light and handy-sized, yet protective, organizer for every kind of take-along gear: technology, travel, toiletries,... Read more

Jobs Board

*Apple* Solutions Consultant - Retail Sales...
**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
*Apple* Solutions Consultant - Retail Sales...
**Job Summary** As an Apple Solutions Consultant (ASC) you are the link between our customers and our products. Your role is to drive the Apple business in a retail Read more
*Apple* Solutions Consultant (ASC)- Retail S...
**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
*Apple* Solutions Consultant - Retail Sales...
**Job Summary** As an Apple Solutions Consultant (ASC) you are the link between our customers and our products. Your role is to drive the Apple business in a retail Read more
Sr. Technical Services Consultant, *Apple*...
**Job Summary** Apple Professional Services (APS) has an opening for a senior technical position that contributes to Apple 's efforts for strategic and transactional Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.