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java.lang.Objectorg.biojava.utils.AbstractChangeable
org.biojava.bio.gui.sequence.SequenceRendererWrapper
org.biojava.bio.gui.sequence.PaddingRenderer
public class PaddingRenderer
A renderer that adds padding before and after a delegate 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 |
PADDING
Event type for when the size of the padding changes. |
Fields inherited from class org.biojava.bio.gui.sequence.SequenceRendererWrapper |
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RENDERER |
Constructor Summary | |
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PaddingRenderer()
Build a new PaddingRenderer with zero padding. |
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PaddingRenderer(SequenceRenderer renderer,
double padding)
Build a new PaddingRenderer that wraps renderer and has
padding depth padding . |
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. |
double |
getPadding()
Retrieve the current padding. |
protected boolean |
hasListeners()
Discover if we have any listeners registered. |
void |
paint(java.awt.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,
java.awt.event.MouseEvent me,
java.util.List path)
Produce a SequenceViewerEvent in response to a mouse gesture. |
void |
setPadding(double padding)
Set the padding. |
java.lang.String |
toString()
|
Methods inherited from class org.biojava.bio.gui.sequence.SequenceRendererWrapper |
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getRenderer, setRenderer |
Methods inherited from class org.biojava.utils.AbstractChangeable |
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addChangeListener, addChangeListener, generateChangeSupport, hasListeners, isUnchanging, removeChangeListener, removeChangeListener |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static ChangeType PADDING
Constructor Detail |
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public PaddingRenderer()
This will cause a rendering effect equivalent to missing out the padding renderer all together.
public PaddingRenderer(SequenceRenderer renderer, double padding)
renderer
and has
padding depth padding
.
renderer
- the SequenceRenderer that will actually do the renderingpadding
- the number of pixels to leave both before and after
rendering the child rendererMethod Detail |
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protected boolean hasListeners()
AbstractChangeable
hasListeners
in class AbstractChangeable
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 SequenceRendererWrapper
public void setPadding(double padding) throws ChangeVetoException
The padding will be added to the area before and after that required to render the delegate renderer.
padding
- the new padding size
ChangeVetoException
- if padding is negative or if any listener
objected to the changepublic double getPadding()
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
getDepth
in class SequenceRendererWrapper
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
getMinimumLeader
in class SequenceRendererWrapper
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
getMinimumTrailer
in class SequenceRendererWrapper
src
- the SequenceRenderContext to return info for
public void paint(java.awt.Graphics2D g, SequenceRenderContext src)
SequenceRenderer
paint
in interface SequenceRenderer
paint
in class SequenceRendererWrapper
g
- the Graphics2D to render tosrc
- the SequenceRenderContext that encapsulates the information to renderpublic SequenceViewerEvent processMouseEvent(SequenceRenderContext src, java.awt.event.MouseEvent me, java.util.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
processMouseEvent
in class SequenceRendererWrapper
src
- the SequenceRenderContext currently in scopeme
- a MouseEvent that caused this requestpath
- the List of SequenceRenderer instances passed through so far
public java.lang.String toString()
toString
in class java.lang.Object
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