/**
* Returns the receiver's image data. This is the icon that is associated with the receiver in the
* operating system.
*
* @return the image data for the program, may be null
*/
public ImageData getImageData() {
NSAutoreleasePool pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init();
try {
NSWorkspace workspace = NSWorkspace.sharedWorkspace();
NSString fullPath;
if (this.fullPath != null) {
fullPath = NSString.stringWith(this.fullPath);
} else {
fullPath = workspace.fullPathForApplication(NSString.stringWith(name));
}
if (fullPath != null) {
NSImage nsImage = workspace.iconForFile(fullPath);
if (nsImage != null) {
NSSize size = new NSSize();
size.width = size.height = 16;
nsImage.setSize(size);
nsImage.retain();
Image image = Image.cocoa_new(Display.getCurrent(), SWT.BITMAP, nsImage);
ImageData imageData = image.getImageData();
image.dispose();
return imageData;
}
}
return null;
} finally {
pool.release();
}
}
/**
* Constructs a new instance of this class given the display to create it on and a style value
* describing its behavior and appearance.
*
* <p>The style value is either one of the style constants defined in class <code>SWT</code> which
* is applicable to instances of this class, or must be built by <em>bitwise OR</em>'ing together
* (that is, using the <code>int</code> "|" operator) two or more of those <code>SWT</code> style
* constants. The class description lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
*
* <p>Note: Currently, null can be passed in for the display argument. This has the effect of
* creating the tracker on the currently active display if there is one. If there is no current
* display, the tracker is created on a "default" display. <b>Passing in null as the display
* argument is not considered to be good coding style, and may not be supported in a future
* release of SWT.</b>
*
* @param display the display to create the tracker on
* @param style the style of control to construct
* @exception SWTException
* <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
* </ul>
*
* @see SWT#LEFT
* @see SWT#RIGHT
* @see SWT#UP
* @see SWT#DOWN
*/
public Tracker(Display display, int style) {
if (display == null) display = Display.getCurrent();
if (display == null) display = Display.getDefault();
if (!display.isValidThread()) {
error(SWT.ERROR_THREAD_INVALID_ACCESS);
}
this.style = checkStyle(style);
this.display = display;
}