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Draw2d 3.9.0.201305060205 |
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java.lang.Objectorg.eclipse.draw2d.NativeGraphicsSource
public final class NativeGraphicsSource
A graphics source that posts a paint request to the control rather than constructing GC on it directly. This allows the OS's native painting mechanism to be used directly, including any double-buffering that the OS may provide for free.
Constructor Summary | |
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NativeGraphicsSource(Control canvas)
Constructs a new graphics source on the given control. |
Method Summary | |
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void |
flushGraphics(Rectangle region)
Does nothing. |
Graphics |
getGraphics(Rectangle r)
Always returns null , because |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public NativeGraphicsSource(Control canvas)
canvas
- the controlMethod Detail |
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public Graphics getGraphics(Rectangle r)
null
, because
getGraphics
in interface GraphicsSource
r
- The rectangular region
GraphicsSource.getGraphics(Rectangle)
public void flushGraphics(Rectangle region)
flushGraphics
in interface GraphicsSource
region
- The rectangular region that that no longer needs the GraphicsGraphicsSource.flushGraphics(Rectangle)
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