Top Description Methods
org.eclipse.swt.graphics

public Interface ImageDataProvider

Known Direct Implementers
org.eclipse.swt.internal.DPIUtil.AutoScaleImageDataProvider
Interface to provide a callback mechanism to get information about images when the application is moved from a low DPI monitor to a high DPI monitor. This provides API which will be called by SWT during the image rendering. This interface needs to be implemented by client code to provide the image information on demand.
Since
3.104

Method Summary

Modifier and TypeMethod and Description
public ImageData

Returns:

the image data, or null if zoom != 100 and no image is available for the given zoom level.
getImageData(int
The zoom level in % of the standard resolution (which is 1 physical monitor pixel == 1 SWT logical point). Typically 100, 150, or 200.
zoom)

Returns the image data for the given zoom level.

Method Detail

getImageDataback to summary
public ImageData getImageData(int zoom)

Returns the image data for the given zoom level.

If no image is available for a particular zoom level, this method should return null. For zoom == 100, returning null is not allowed, and SWT will throw an exception.

Parameters
zoom:int

The zoom level in % of the standard resolution (which is 1 physical monitor pixel == 1 SWT logical point). Typically 100, 150, or 200.

Returns:ImageData

the image data, or null if zoom != 100 and no image is available for the given zoom level.

Since
3.104