Class AsyncImage
- java.lang.Object
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- java.util.concurrent.atomic.AtomicReference<org.eclipse.swt.graphics.ImageData>
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- org.eclipse.nebula.widgets.geomap.internal.AsyncImage
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Runnable
class AsyncImage extends java.util.concurrent.atomic.AtomicReference<org.eclipse.swt.graphics.ImageData> implements java.lang.Runnable
An async image that loads itself in the background on an image-fetcher thread. Once its loaded it will trigger a redraw. Sometimes redraws that are not really necessary can be triggered, but that is not relevant in terms of performance for this swt-component.
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Field Summary
Fields Modifier and Type Field Description private GeoMapHelper
geoMapHelper
private org.eclipse.swt.graphics.Image
image
private java.lang.Runnable
removeTileFromCacheRunnable
private long
stamp
private TileRef
tile
private java.lang.Runnable
tileUpdatedRunnable
private java.lang.String
tileUrl
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Constructor Summary
Constructors Constructor Description AsyncImage(GeoMapHelper geoMapHelper, TileRef tile, java.lang.String tileUrl)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description private void
checkThread(org.eclipse.swt.widgets.Display display)
void
dispose()
org.eclipse.swt.graphics.Image
getImage(org.eclipse.swt.widgets.Display display)
void
run()
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Methods inherited from class java.util.concurrent.atomic.AtomicReference
accumulateAndGet, compareAndExchange, compareAndExchangeAcquire, compareAndExchangeRelease, compareAndSet, get, getAcquire, getAndAccumulate, getAndSet, getAndUpdate, getOpaque, getPlain, lazySet, set, setOpaque, setPlain, setRelease, toString, updateAndGet, weakCompareAndSet, weakCompareAndSetAcquire, weakCompareAndSetPlain, weakCompareAndSetRelease, weakCompareAndSetVolatile
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Field Detail
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geoMapHelper
private final GeoMapHelper geoMapHelper
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tile
private final TileRef tile
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tileUrl
private final java.lang.String tileUrl
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stamp
private volatile long stamp
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image
private org.eclipse.swt.graphics.Image image
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removeTileFromCacheRunnable
private java.lang.Runnable removeTileFromCacheRunnable
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tileUpdatedRunnable
private java.lang.Runnable tileUpdatedRunnable
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Constructor Detail
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AsyncImage
AsyncImage(GeoMapHelper geoMapHelper, TileRef tile, java.lang.String tileUrl)
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