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java.lang.Objectorg.biojava.utils.AbstractChangeable
org.biojava.bio.gui.sequence.SequenceRendererWrapper
public class SequenceRendererWrapper
An implementation of SequenceRenderer that delegates rendering to another renderer.
This takes care of all event notification and method invocation for you. Subclass this and over-ride methods, and then possibly call the method on super to forward the call on to the wrapped renderer.
Nested Class Summary |
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Nested classes/interfaces inherited from interface org.biojava.bio.gui.sequence.SequenceRenderer |
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SequenceRenderer.RendererForwarder |
Field Summary | |
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static ChangeType |
RENDERER
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Constructor Summary | |
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SequenceRendererWrapper()
Create a new renderer with no wrapped renderer. |
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SequenceRendererWrapper(SequenceRenderer renderer)
Create a new wrapper with a wrapped renderer |
Method Summary | |
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protected ChangeSupport |
getChangeSupport(ChangeType ct)
Called to retrieve the ChangeSupport for this object. |
double |
getDepth(SequenceRenderContext src)
Retrieve the depth of this renderer when rendering src. |
double |
getMinimumLeader(SequenceRenderContext src)
Retrieve the minimum leading distance for this renderer when rendering src. |
double |
getMinimumTrailer(SequenceRenderContext src)
Retrieve the minimum trailing distance for this renderer when rendering src. |
SequenceRenderer |
getRenderer()
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void |
paint(Graphics2D g,
SequenceRenderContext src)
Render a portion (possibly all) of the information for src to g, displaying all of the data that would fall within seqBox. |
SequenceViewerEvent |
processMouseEvent(SequenceRenderContext src,
MouseEvent me,
List path)
Produce a SequenceViewerEvent in response to a mouse gesture. |
void |
setRenderer(SequenceRenderer renderer)
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Methods inherited from class org.biojava.utils.AbstractChangeable |
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addChangeListener, addChangeListener, generateChangeSupport, hasListeners, hasListeners, isUnchanging, removeChangeListener, removeChangeListener |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static ChangeType RENDERER
Constructor Detail |
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public SequenceRendererWrapper()
public SequenceRendererWrapper(SequenceRenderer renderer)
renderer
- the SequenceRenderer to wrap upMethod Detail |
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protected ChangeSupport getChangeSupport(ChangeType ct)
AbstractChangeable
Your implementation of this method should have the following structure:
It is usual for the forwarding listeners (someForwarder in this example) to
be transient and lazily instantiated. Be sure to register & unregister the
forwarder in the code that does the ChangeEvent handling in setter methods.
ChangeSupport cs = super.getChangeSupport(ct);
if(someForwarder == null && ct.isMatching(SomeInterface.SomeChangeType)) {
someForwarder = new ChangeForwarder(...
this.stateVariable.addChangeListener(someForwarder, VariableInterface.AChange);
}
return cs;
getChangeSupport
in class AbstractChangeable
public void setRenderer(SequenceRenderer renderer) throws ChangeVetoException
ChangeVetoException
public SequenceRenderer getRenderer()
public double getDepth(SequenceRenderContext src)
SequenceRenderer
The depth may vary between sequence panels - for example based upon sequence length. Each line of information in the SequenceRendererContext only renders a region of the sequence. The depth for one complete line may be different from that for another due to the sequence having more or less information in that region to show. For example, a feature renderer implementation may chose to collapse down to a depth of zero pixels if there are no features to render within a region.
getDepth
in interface SequenceRenderer
src
- the SequenceRenderContext to return info for
public double getMinimumLeader(SequenceRenderContext src)
SequenceRenderer
The leading distance may vary between sequence panels - for example based upon sequence length.
getMinimumLeader
in interface SequenceRenderer
src
- the SequenceRenderContext to return info for
public double getMinimumTrailer(SequenceRenderContext src)
SequenceRenderer
The trailing distance may vary between sequence panels - for example based upon sequence length.
getMinimumTrailer
in interface SequenceRenderer
src
- the SequenceRenderContext to return info for
public void paint(Graphics2D g, SequenceRenderContext src)
SequenceRenderer
paint
in interface SequenceRenderer
g
- the Graphics2D to render tosrc
- the SequenceRenderContext that encapsulates the information to renderpublic SequenceViewerEvent processMouseEvent(SequenceRenderContext src, MouseEvent me, List path)
SequenceRenderer
A SequenceRenderer that performs any form of coordinate remapping should ensure that it appropriately transforms the mouse event. However, in the SequenceViewerEvent returned, the MouseEvent should be in untransformed coordinates.
The SequenceRenderer implementation should append itself to the path list before constructing the SequenceViewerEvent.
processMouseEvent
in interface SequenceRenderer
src
- the SequenceRenderContext currently in scopeme
- a MouseEvent that caused this requestpath
- the List of SequenceRenderer instances passed through so far
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