TweetFollow Us on Twitter

Oct 98 Getting Started

Volume Number: 14 (1998)
Issue Number: 10
Column Tag: Getting Started

Animation

by Dave Mark and Dan Parks Sydow

How a Mac program generates smooth, flicker-free animation

After learning the basics of programming, the new programmer invariably raises the question of how to go about including animated effects in his or her application. This is true regardless of the programmer's system of choice, but it's especially the case among those interested in programming the Mac. From its inception, the Macintosh has been the machine that brought computers and graphics together for the masses. Mac users love to see animation, and Mac programmers love to include animation in their programs. Now that previous columns have covered the basics of the Macintosh Toolbox, it's time to move on to the basics of animation. This column covers black and white animation using QuickDraw bitmaps. A couple of columns down the road (after we cover Color QuickDraw), we'll revisit this month's technique and see how to adapt it for use in color animation.

The Wrong Way to Animate

If you've ever attempted to write an arcade-style game, you've probably tried your hand at moving an object over a background. If you found that the moving object obscured the background as it moved across it you were certainly less then thrilled. The same holds true if the object appeared to flicker incessantly as it traveled its path. If you're very familiar with these failed animation methods (we all went through the process as we learned how to do it right!), you'll be pleased to find out that while the results were less than ideal, the methods were close to being correct. As such, taking a brief look at the incorrect ways of performing animation serve as a worthwhile prelude to a discussion of how to properly perform computer animation.

A programmer attempting animation for the first time often does so by drawing a background picture in a window and then drawing a foreground object atop the background. Invariably, the attempt at animation then involves repeatedly offsetting the foreground object a bit and redrawing it. While the foreground object will appear to move across the background, the result is unacceptable - a part of each previously drawn image remains exposed, leaving a blurry trail behind the moving object. Figure 1 illustrates this for a cartoon vacuum moving over a gray background (hey, every game doesn't have to be a shoot 'em up, right?).

Figure 1. The result of animating without regard for clearing the background.

Having seen the folly of his ways, the inexperienced animator next tries to remedy the situation by redrawing the background image so as to cover any old foreground image remnant. The foreground image is then offset a bit and redrawn over the fresh background. This corrects the problem of foreground image "leftovers," but introduces the new problem of flicker. When the background image is redrawn in order to cover up the foreground image, it obscures the entire drawing. Taking a snapshot of a few "frames" of this type of animation results in the three views of one window shown in Figure 2. Looking from left to right at this figure reveals that the object has moved along a bit, but in between the movement the user will notice the momentarily blanking of the window.

Figure 2. Clearing the background between foreground redrawing creates flicker.

The Offscreen Bitmap Solution

As you know from previous Getting Started columns, most programs deal with repainting a window's content by responding to updateEvts generated by the Window Manager. When an area of a window that was previously obscured needs to be redrawn, the Window Manager adds the newly revealed area to the window's update region and generates an updateEvt for the window. The technique of relying on update events to refresh a window's content area works fine for programs that don't need to incorporate smooth, fast, animated effects. When it comes to animation, the problem with this approach is that update events take time. It takes time for the Window Manager to calculate the update region and it takes time to post an event. More importantly, it takes time for your program to respond to an update event. If your program is busy responding to another event, the update event might sit in the queue for a while, leaving the window undrawn until you get around to fixing it.

When you've got a rocket ship shooting across a planet's surface, you don't want to leave any holes in the planet, waiting for your program to respond to an update event. You want to fill in the holes in real time, just like the System does when it handles your cursor.

Fortunately, the previously discussed problem of flicker and the just-mentioned problem of slow updating are both easily overcome by employing a programming technique known as offscreen bitmap animation. A bitmap is one way to represent a graphical object. On the Mac, a bitmap is a representation of a monochrome (black and white) image. The map is a grid of pixels, with each pixel considered either on or off. In specifying the state of each pixel (which in memory is represented by a single bit) in a given area, you define a single image, or picture. After defining a bitmap, your next task is to animate it. That is, your program needs to smoothly move it over a background in a window.

Your Mac's cursor is an example of a bitmap, and the cursor's movement is a perfect instance of bitmap animation. As the cursor moves around the screen, it appears to float over the background without flickering. Consider the sequence of pictures in Figure 3.

Figure 3. The movement of the cursor provides an example of smooth animation.

The leftmost part of Figure 3 shows an arrow cursor partially obscuring a hard drive icon. Once the cursor moves, it leaves an area of the hard drive icon undrawn - as shown in the center part of the figure. As shown in the rightmost part of Figure 3, before this "hole" gets noticed, the system fills it back up with its previous contents.

Implementing the Offscreen Bitmap Technique

An offscreen bitmap is a bitmap that is drawn in memory, but does not appear on screen. To achieve an animated effect, a total of three offscreen bitmaps are needed. One of these bitmaps holds a background image - the image over which a foreground image will appear to traverse. A second bitmap holds the foreground image. The third offscreen bitmap is a combination of the previous two offscreen bitmaps. This combined, or master, bitmap serves as a mixing board of sorts. Only after the foreground and background are combined in the master bitmap does anything get displayed in a window for the user to see. What gets displayed is a copy of the master bitmap. As shown in Figure 4, it is the only one of the three offscreen bitmaps that gets copied from memory to a window.

Figure 4. Using offscreen bitmaps in memory to create one "frame" of an animated sequence.

Animation begins by copying the background bitmap to the mixer, then copying the foreground bitmap to the same mixer. The mixer bitmap is then copied to a window. This combining of the foreground and background bitmaps, and the subsequent displaying of the result in a window, is performed repeatedly within a loop. In each pass through the loop there should be a slight shift in the position of the foreground image relative to the background image. The result of executing this loop is that the foreground image appears to be moving. Animation is achieved. And because the new image that's displayed in each pass through the loop is created behind the scene in memory rather than in view of the user on-screen, there is a minimum of flicker.

BitMapper

In this month's program we create three offscreen bitmaps to accomplish the animated effect of a hand moving smoothly across a window. As the user drags the mouse, the hand follows. The hand appears to track the cursor, floating along on top of the gray background. Figure 5 shows what the user of the BitMapper program sees.

Figure 5. The BitMapper window.

The floating hand is our foreground bitmap image. The framed gray pattern is the background bitmap image. As you move the mouse, the hand appears to float over the gray background, just like a cursor. What the user is seeing is the mixer bitmap - the copied version of the offscreen bitmap that represents the combining of the foreground hand bitmap with the background gray bitmap.

Creating the BitMapper Resources

To get under way, move into your CodeWarrior development folder and create a folder named BitMapper. Launch ResEdit and create a new resource file named BitMapper.rsrc inside the BitMapper folder.

You need to create two PICT resources - one to serve as the foreground image and one to act as the background image. In the BitMapper source code we'll be referencing these resources by IDs of 128 and 129, so make sure you assign those values to the pictures. In particular, give the background PICT an ID of 128 and the foreground PICT an ID of 129. You don't have to use the same pictures we're using, but you do have to make sure that PICT 128 is larger than PICT 129 so that the background is larger than the foreground!

If you've got a graphics program like ClarisDraw, CorelDraw, or Canvas, create your background by drawing a nice frame, then pasting another image inside it. Copy the whole thing to the clipboard, then paste it inside ResEdit. For the foreground, you'll want something relatively small. Use whatever image you like, but be sure to make it resource ID 129. Note that both images should be black and white only, and not color or grayscale. You can use a color image, but all colored pixels will be translated to black, so things might not come out as you planned them to.

The only other resource needed is a WIND that will define the look and position of the window that is to display the animation. If you've created a background image that is uniform (such as the solid gray image we're using), the window doesn't have to be the size of the background image - when the background image is scaled to the size of the window it won't be distorted. If you create a background image that isn't consistent (perhaps the image is a landscape with trees and so forth), you'll want to make the window's size the same as the image.

That's it for the BitMapper.rsrc file. Now quit ResEdit, making sure to first save your changes.

Creating the BitMapper Project

Launch CodeWarrior and create a new project based on the MacOS:C_C++:MacOS Toolbox:MacOS Toolbox Multi-Target stationary. You've already created a project folder, so uncheck the Create Folder check box. Name the project BitMapper.mcp and specify that the project be placed in the BitMapper folder.

In the newly created project window you'll want to remove the SillyBalls.c and SillyBalls.rsrc files and add the BitMapper.rsrc file. Our BitMapper project doesn't make use of any of the standard ANSI libraries, so go ahead and remove the ANSI Libraries folder.

Next, choose New from the File menu to create a new, empty source code window. Save it with the name BitMapper.c. Add the new file to the project by choosing Add Window from the Project menu. The full source code listing for the BitMapper program appears next in the source code walk-through. You can type it into the BitMapper.c file as you read the walk-through, or you can save some typing by downloading the whole BitMapper project from MacTech's ftp site at ftp://ftp.mactech.com/src/mactech/volume14_1998/14.10.sit.

Walking Through the Source Code

As with previous projects, BitMapper starts off with some constant definitions.

/********************* constants *********************/

#define         kMoveToFront               (WindowPtr)-1L
#define         kWINDResID                  128

const short   kBackgroundPictID =      128;
const short   kForegroundPictID =      129;

These are followed by BitMapper's function prototypes.

/********************* functions *********************/

void        ToolBoxInit( void );
WindowPtr   WindowInit( void );
PicHandle   LoadPicture( short resID );
GrafPtr     CreateBitMap( const Rect *rPtr );

The main() function starts off with several local variable declarations and a call to the routine that initializes the Toolbox.

/************************ main ***********************/

void   main( void )
{
   Rect            r;
   GrafPtr      backPortPtr, forePortPtr, mixerPortPtr;
   WindowPtr   window;
   PicHandle   backPict, forePict;
   Point         p;
   
   ToolBoxInit();

Next, a window is created. The application-defined routine WindowInit(), which is discussed ahead, returns a WindowPtr that is stored in the local variable window. A call to ShowWindow() ensures that the window becomes visible onscreen.

   window = WindowInit();
   ShowWindow(window);

Next, the background PICT is loaded. The frame of the PICT (its bounding rectangle) is normalized (its size is left the same, but it's repositioned so that its top and left coordinates are both 0).

   backPict = LoadPicture( kBackgroundPictID );
   r = (**backPict).picFrame;
   OffsetRect( &r, -r.left, -r.top );

This normalized Rect is passed on to the application-defined routine CreateBitMap(). CreateBitMap(), discussed below, creates an offscreen GrafPort the size of the specified Rect. You're used to working with a GrafPort that's associated with a window (every window has one). Even though the newly created GrafPort isn't linked to any window, it can be drawn to - just like a window's GrafPort. You can use SetPort() on it, as well as all the standard QuickDraw routines such as DrawString() and DrawPicture(). While your drawing won't appear on the screen, the drawing will affect the memory used to implement the GrafPort.

   backPortPtr = CreateBitMap( &r );

CreateBitMap() returns a pointer to the newly created GrafPort. When CreateBitMap() returns, this port is made the current port. That means any subsequent port-altering calls will affect the GrafPort referenced by backPortPtr. Next, DrawPicture() is called to draw the background PICT in the background GrafPort.

   DrawPicture( backPict, &r );

Next, the master GrafPort is created. This GrafPort is used to merge the foreground PICT with the background PICT. Once again, when this call to CreateBitMap() returns, the new GrafPort is the current port.

   mixerPortPtr = CreateBitMap( &r );

Just as we did with the background PICT, this next sequence of code loads the foreground PICT, creates a normalized bounding Rect, and finally creates a GrafPort for the foreground PICT.

   forePict = LoadPicture( kForegroundPictID );
   r = (**forePict).picFrame;
   OffsetRect( &r, -r.left, -r.top );
   
   forePortPtr = CreateBitMap( &r );

The call of CreateBitMap() leaves forePortPtr as the current port. Next, DrawPicture() is used to draw the foreground picture in this newly created GrafPort.

   DrawPicture( forePict, &r );

OK. That's about all the preliminary stuff. Now we're ready to animate. Before we do, though, we'll use HideCursor() to make the cursor invisible so that our foreground hand picture can be made to take the place of the normal pointer cursor.

   HideCursor();

Next, we'll enter a loop, waiting for the mouse button to be clicked.

   while ( !Button() )
   {

At the heart of our program is the CopyBits() Toolbox routine. CopyBits() copies one QuickDraw BitMap to another. A BitMap is the Toolbox data structure that holds one bitmap - we'll get into the BitMap data structure a little later on. This call to CopyBits() copies the background BitMap into the mixer BitMap, using the bounding rectangle associated with each of the BitMaps. The srcCopy parameter specifies how the BitMap is copied. The srcCopy parameter tells CopyBits() to replace all bits in the destination BitMap's rectangle with the bits in the source BitMap.

      CopyBits(   &(backPortPtr->portBits), 
                     &(mixerPortPtr->portBits),
                     &(backPortPtr->portBits.bounds),
                     &(mixerPortPtr->portBits.bounds),
                     srcCopy, nil );

Next, we get the current position of the mouse, in global coordinates.

      GetMouse( &p );

Now set the port to the BitMapper window, then convert the mouse position to the window's local coordinates.

      SetPort( window );
      GlobalToLocal( &p );

Next, the foreground BitMap's bounding rectangle is copied to a local variable, r, and offset by the mouse's position. Basically, r is the same size as the foreground BitMap (the pointing hand), positioned on the background BitMap (which is the same size as the window) according to the current location of the mouse.

      r = forePortPtr->portBits.bounds;
      OffsetRect( &r, p.h, p.v );

Now the foreground BitMap is copied to the mixer BitMap, using r as the destination bounding rectangle. Notice the use of srcOr instead of srcCopy. This makes the foreground BitMap transparent. To see the effect this has, try changing the srcOr to srcCopy.

      CopyBits(   &(forePortPtr->portBits), 
                     &(mixerPortPtr->portBits),
                     &(forePortPtr->portBits.bounds), 
                     &r, srcOr, nil );

Finally, the mixer BitMap is copied to the window. In short, the loop works like this: Build the window's image offscreen, then copy the combined image to the window.

      CopyBits(   &(mixerPortPtr->portBits), 
                     &(window->portBits),
                     &(mixerPortPtr->portBits.bounds), 
                     &(window->portRect),
                     srcCopy, nil );
   }
}

ToolBoxInit() is the same as it ever was...

/******************** ToolBoxInit ********************/

void   ToolBoxInit( void )
{
   InitGraf( &qd.thePort );
   InitFonts();
   InitWindows();
   InitMenus();
   TEInit();
   InitDialogs( 0L );
   InitCursor();
}

WindowInit() loads the background PICT, copying its framing rectangle into r.

/********************* WindowInit ********************/

WindowPtr   WindowInit( void )
{
   WindowPtr   window;
   PicHandle   pic;
   Rect        r;
   short       pictWidth;
   short       pictHeight;
   
   pic = LoadPicture( kBackgroundPictID );
   r = (**pic).picFrame;

From variable r the width and height of the background picture are determined.

   pictWidth  = r.right - r.left;
   pictHeight = r.bottom - r.top;

Next, a new window is created from the WIND resource. A call to SizeWindow() resizes the window to match the size of the just-loaded background picture.

   window = GetNewWindow( kWINDResID, nil, kMoveToFront);
   SizeWindow( window, pictWidth, pictHeight, true);

WindowInit() ends by returning the window pointer variable WindowPtr to the calling routine.

   return( window );
}

LoadPicture() loads the specified PICT resource. If the PICT isn't found, LoadPicture() beeps once, then exit.

/******************** LoadPicture ********************/

PicHandle   LoadPicture( short resID )
{
   PicHandle   picture;
   
   picture = GetPicture( resID );

   if ( picture == nil )
   {
      SysBeep( 10 );
      ExitToShell();
   }
}

CreateBitMap() creates a new GrafPort the size of the specified Rect. A BitMap is a QuickDraw data structure designed to hold a bitmap of an image one pixel deep (that is, capable of only displaying either black or white).

/******************* CreateBitMap ********************/

GrafPtr CreateBitMap( const Rect *rPtr )
{
   short        i;
   BitMap       *bPtr;
   GrafPtr      g;

First, a new GrafPort is allocated using NewPtr(). If the memory couldn't be allocated, beep once.

   g = (GrafPtr)NewPtr( sizeof(GrafPort) );
   if ( g == nil )
      SysBeep( 10 );

Next, a BitMap data structure is allocated. Again, if the memory was not allocated, beep once. These beeps aren't really effective - they're put in place as a weak substitute for error checking. You'll want to weave more adequate memory allocation failure handling into your overall error-handling scheme.

   bPtr = (BitMap *)NewPtr( sizeof( BitMap ) );
   if ( bPtr == nil )
      SysBeep( 10 );

Next, the specified rectangle is copied into the BitMap's bounds field. This field specifies the coordinates bounding the BitMap.

   bPtr->bounds = *rPtr;

The rowBytes field indicates how many bytes are used to store one row of the BitMap. For example, 0 through 8 pixels can be stored in 1 byte, 9 through 16 pixels in 2 bytes, etc.

   bPtr->rowBytes = (rPtr->right - rPtr->left + 7) /8;

Next, i is set to the number of rows in the bounding rectangle, and i * rowBytes bytes are allocated for the bit image itself. Again, if the memory was not allocated, beep once.

   i = rPtr->bottom - rPtr->top;
   bPtr->baseAddr = NewPtr( bPtr->rowBytes * i );

   if ( bPtr->baseAddr == nil )
      SysBeep( 10 );

Next, OpenPort() is called to initialize the new GrafPort, which is pointed to by g. OpenPort() leaves g as the current port. SetPortBits() ties the specified BitMap to the current port.

   OpenPort( g );
   SetPortBits( bPtr );

Finally, we return a pointer to the newly allocated GrafPort.

   return( g );
}

Running BitMapper

Run BitMapper by selecting Run from the Project menu. Once your code compiles, a window should appear with your background PICT drawn in it. The window will be the exact size of the background PICT.

As you move the mouse, the foreground PICT should follow the mouse's movement. Click the mouse to exit the program.

Till Next Month...

This sample code should get you on your way to successful offscreen bitmap animation. You can get more information on bitmaps and the BitMap data type in the Basic QuickDraw chapter of the Imaging With QuickDraw volume of Inside Macintosh. Once you've mastered this technique, you're ready to tackle color animation by using PixMaps and the Toolbox routine CopyPixMap(). As mentioned at the beginning of the column, we'll get to PixMap animation, but first we'll have to cover the basics of programming with Color QuickDraw. If you're anxious to prepare for next month's article, peruse the Color QuickDraw chapter of Inside Macintosh: Imaging With QuickDraw.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Firefox 58.0 - Fast, safe Web browser.
Firefox 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 casual... Read more
macOS High Sierra 10.13.3 - The latest O...
macOS High Sierra introduces new core technologies that improve the most important functions of your Mac. From rearchitecting how it stores your data to improving the efficiency of video streaming to... Read more
Apple iOS 11.2.5 - The latest version of...
iOS 11 sets a new standard for what is already the world’s most advanced mobile operating system. It makes iPhone better than before. It makes iPad more capable than ever. And now it opens up both to... Read more
Adobe Audition CC 2018 11.0.1 - Professi...
Audition 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 Audition customer). Adobe Audition CC 2018 empowers you to create and... Read more
Adobe After Effects CC 2018 15.0.1 - Cre...
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 12.0.1 - 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
Adobe Photoshop CC 2018 19.1 - Professio...
Photoshop 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 Photoshop customer). Adobe Photoshop CC 2018, the industry standard... Read more
Spotify 1.0.69.336. - Stream music, crea...
Spotify is a streaming music service that gives you on-demand access to millions of songs. Whether you like driving rock, silky R&B, or grandiose classical music, Spotify's massive catalogue puts... Read more
rekordbox 5.1.1.0001 - Professional DJ m...
rekordbox is the best way of preparing and managing your tracks, be it at home, in the studio, or even on the plane! It allows you to import music from other music-management software using the... Read more
Mactracker 7.7.1 - Database of all Mac m...
Mactracker provides detailed information on every Mac computer ever made, including items such as processor speed, memory, optical drives, graphic cards, supported OS X versions, and expansion... Read more

Latest Forum Discussions

See All

Jydge hints, tips, and tricks - Everythi...
Just released on iOS, Jydge is a prequel to Neon Chrome and is set in the same universe. Not just that, but the games play in pretty similar ways with them both being twin stick shooters full of surprises. As you might expect from a 10tons game,... | Read more »
World of Warships Blitz: A guide to tact...
Ahoy mates! It's time to set out on the high seas for some PvP battles, and ... sorry, actually, World of Warships Blitz has nothing to do with pirates. Let's start over. [Read more] | Read more »
Around the Empire: What have you missed...
Around this time every week we're going to have a look at the comings and goings on the other sites in Steel Media's pocket-gaming empire. We'll round up the very best content you might have missed, so you're always going to be up to date with the... | Read more »
Everything about Hero Academy 2: Part 4...
In this part of our Hero Academy 2 guide, we're going to have a look at some of the tactics you're going to need to learn if you want to rise up the ranks. We're going to start off slow, then get more advanced in the next section. [Read more] | Read more »
All the best games on sale for iPhone an...
Another week has flown by. Sometimes it feels like the only truly unstoppable thing is time. Time will make dust of us all. But before it does, we should probably play as many awesome mobile videogames as we can. Am I right, or am I right? [Read... | Read more »
The 7 best games that came out for iPhon...
Well, it's that time of the week. You know what I mean. You know exactly what I mean. It's the time of the week when we take a look at the best games that have landed on the App Store over the past seven days. And there are some real doozies here... | Read more »
Popular MMO Strategy game Lords Mobile i...
Delve into the crowded halls of the Play Store and you’ll find mobile fantasy strategy MMOs-a-plenty. One that’s kicking off the new year in style however is IGG’s Lords Mobile, which has beaten out the fierce competition to receive Google Play’s... | Read more »
Blocky Racing is a funky and fresh new k...
Blocky Racing has zoomed onto the App Store and Google Play this week, bringing with it plenty of classic kart racing shenanigans that will take you straight back to your childhood. If you’ve found yourself hooked on games like Mario Kart or Crash... | Read more »
Cytus II (Games)
Cytus II 1.0.1 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0.1 (iTunes) Description: "Cytus II" is a music rhythm game created by Rayark Games. It's our fourth rhythm game title, following the footsteps of three... | Read more »
JYDGE (Games)
JYDGE 1.0.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0.0 (iTunes) Description: Build your JYDGE. Enter Edenbyrg. Get out alive. JYDGE is a lawful but awful roguehate top-down shooter where you get to build your... | Read more »

Price Scanner via MacPrices.net

Where to buy 13″ Apple MacBook Pros for up to...
B&H Photo has 13″ MacBook Pros on sale for $100 off MSRP. Shipping is free, and B&H charges sales tax for NY & NJ residents only: – 13-inch 2.3GHz/128GB Space Gray MacBook Pro (MPXQ2LL/A... Read more
Apple Refurbished 2017 iMacs available starti...
Apple has a full line of Certified Refurbished iMacs available for up to $350 off original MSRP. Apple’s one-year warranty is standard, and shipping is free. The following models are available: – 27... Read more
Apple offers clearance 2016 13-inch MacBook A...
Apple has Certified Refurbished 2016 13″ MacBook Airs available starting at $809. An Apple one-year warranty is included with each MacBook, and shipping is free: – 13″ 1.6GHz/8GB/128GB MacBook Air: $... Read more
Clearance Apple refurbished iMacs available s...
Apple has previous-generation Certified Refurbished 2015 21″ & 27″ iMacs available starting at $849. Apple’s one-year warranty is standard, and shipping is free. The following models are... Read more
How to save $150-$420 on the purchase of a 20...
B&H Photo has 15″ MacBook Pros on sale for up to $200 off MSRP. Shipping is free, and B&H charges sales tax for NY & NJ residents only: – 15″ 2.8GHz Touch Bar MacBook Pro Space Gray (... Read more
How to save $100-$180 on the purchase of a 20...
B&H Photo has 13″ MacBook Airs on sale for $50-$120 off MSRP. Shipping is free, and B&H charges sales tax for NY & NJ residents only: – 13″ 1.8GHz/128GB MacBook Air (MQD32LL/A): $899, $... Read more
Save on Beats: $30-$80 off headphones, earpho...
Walmart has Beats by Dr. Dre on sale on their online store for $30-$80 off MSRP, depending on the item: – Powerbeats3 Wireless Earphones: $134, save $65 – BeatsX Earphones: $109, save $40 – Beats... Read more
Deals on clearance 15″ Apple MacBook Pros wit...
B&H Photo has clearance 2016 15″ MacBook Pros available for up to $800 off original MSRP. Shipping is free, and B&H charges NY & NJ sales tax only: – 15″ 2.7GHz Touch Bar MacBook Pro... Read more
Apple restocked Certified Refurbished 13″ Mac...
Apple has restocked a full line of Certified Refurbished 2017 13″ MacBook Airs starting at $849. An Apple one-year warranty is included with each MacBook, and shipping is free: – 13″ 1.8GHz/8GB/128GB... Read more
How to find the lowest prices on 2017 Apple M...
Apple has Certified Refurbished 13″ and 15″ 2017 MacBook Pros available for $200 to $420 off the cost of new models. Apple’s refurbished prices are the lowest available for each model from any... Read more

Jobs Board

*Apple* Solutions Consultant - Apple (United...
# Apple Solutions Consultant Job Number: 113384559 Brandon, Florida, United States Posted: 10-Jan-2018 Weekly Hours: 40.00 **Job Summary** Are you passionate about Read more
Security Engineering Coordinator, *Apple* R...
# Security Engineering Coordinator, Apple Retail Job Number: 113237456 Santa Clara Valley, California, United States Posted: 18-Jan-2018 Weekly Hours: 40.00 **Job Read more
*Apple* Data Center Site Selection and Strat...
# Apple Data Center Site Selection and Strategy Research Analyst Job Number: 83708609 Santa Clara Valley, California, United States Posted: 18-Jan-2018 Weekly Hours: Read more
Engineering Manager - *Apple* TV - Apple (U...
# Engineering Manager - Apple TV Job Number: 113305053 Santa Clara Valley, California, United States Posted: 05-Dec-2017 Weekly Hours: 40.00 **Job Summary** The Read more
AppleCare Support Engineer for *Apple* Medi...
# AppleCare Support Engineer for Apple Media Products Job Number: 113222855 Santa Clara Valley, California, United States Posted: 14-Nov-2017 Weekly Hours: 40.00 Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.