public interface ImageDataProvider
ImageData getImageData(int zoom)
If no image is available for a particular zoom level, this method should
zoom == 100, returning
null is not allowed, and SWT will throw an exception.
zoom- The zoom level in % of the standard resolution (which is 1 physical monitor pixel == 1 SWT logical pixel). Typically 100, 150, or 200.
zoom != 100and no image is available for the given zoom level.
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