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Java Source Code / Java Documentation » GIS » udig 1.1 » net.refractions.udig.project.internal.render

Source Cross Reference

Class Diagram

Java Document (Java Doc)

net.refractions.udig.project.internal.render .RendererCreator

All known Subclasses:   net.refractions.udig.project.internal.render.impl .RendererCreatorImpl,
RendererCreator
public interface RendererCreator (Code)
Creates Renderers and RenderContexts.
author:
   Jesse
since:
   1.0.0

Field Summary
final public static String LAST_RESORT_RENDERER_ID
     Provides a way to influence the choice of renderers.
final public static String PREFERRED_RENDERER_ID
     Provides a way to influence the choice of renderers.

Method Summary
void changed(Notification msg)
     Causes the RendererCreator to be updated as a result of a Map event.
public SelectionLayer findSelectionLayer(ILayer targetLayer)

public Map<String, String> getAvailableRenderersInfo(Layer layer)
     Returns The name and description of all the renderers that are capable of rendering the provided layer.
Collection<RenderContext> getConfiguration()
     Returns the current configuration of Contexts objects.
RenderContext getContext()
     Returns the value of the 'Toolkit' attribute.
SortedSet<Layer> getLayers()

public RenderContext getRenderContext(Layer layer)

public Renderer getRenderer(RenderContext context)
     Creates a Renderer which can render the provided layer
Parameters:
  context - A context object with a layer to be rendered.
public void reset()
     Rebuilds the configurations.
void setContext(RenderContext value)
     Sets the value of the ' net.refractions.udig.project.internal.render.RendererCreator.getContext Context ' reference.

Field Detail
LAST_RESORT_RENDERER_ID
final public static String LAST_RESORT_RENDERER_ID(Code)
Provides a way to influence the choice of renderers. The value of a blackboard entry must a string which is the id of the Renderer as declared in the Extension definition. For example "BasicFeatureRenderer".

If an entry is on a Layer's blackboard with this key then that renderer will be negatively weighted for that layer compared other renderers.

If an entry is on the Map's blackboard with this key then that renderer will be negatively weighted compared to other renderers.

IMPORTANT: don't forget to append the plugin ID to the id entered into the id field.

PREFERRED_RENDERER_ID
final public static String PREFERRED_RENDERER_ID(Code)
Provides a way to influence the choice of renderers. The value of a blackboard entry must a string which is the id of the Renderer as declared in the Extension definition. For example "BasicFeatureRenderer".

If an entry is on a Layer's blackboard with this key then that renderer will be preferred for that layer over other renderers.

If an entry is on the Map's blackboard with this key then that renderer will be preferred over other renderers unless there is also an entry on a layer. In that case the layer's renderer still has precidence.

IMPORTANT: don't forget to append the plugin ID to the id entered into the id field.

Method Detail
changed
void changed(Notification msg)(Code)
Causes the RendererCreator to be updated as a result of a Map event.

findSelectionLayer
public SelectionLayer findSelectionLayer(ILayer targetLayer)(Code)
Locates the selection layer for layer or returns null; the selection layer for layer or returns null;

getAvailableRenderersInfo
public Map<String, String> getAvailableRenderersInfo(Layer layer)(Code)
Returns The name and description of all the renderers that are capable of rendering the provided layer. The name and description of all the renderers that are capable of rendering the provided layer.

getConfiguration
Collection<RenderContext> getConfiguration()(Code)
Returns the current configuration of Contexts objects. the current configuration of Contexts objects

getContext
RenderContext getContext()(Code)
Returns the value of the 'Toolkit' attribute.
If the meaning of the 'Toolkit' attribute isn't clear, there really should be more of a description here...
the value of the 'Toolkit' attribute.

getLayers
SortedSet<Layer> getLayers()(Code)
The list of layers that the RendererCreator is responsible for creating renderers

getRenderContext
public RenderContext getRenderContext(Layer layer)(Code)
List all the RenderContexts required for rendering all the layers inthe ContextModel.

getRenderer
public Renderer getRenderer(RenderContext context)(Code)
Creates a Renderer which can render the provided layer
Parameters:
  context - A context object with a layer to be rendered. The layer will be used todetermine which renderer will be created a Renderer which can render the provided layer null if the layer type is not known(for example a decorator with an unknown renderer)

reset
public void reset()(Code)
Rebuilds the configurations.

setContext
void setContext(RenderContext value)(Code)
Sets the value of the ' net.refractions.udig.project.internal.render.RendererCreator.getContext Context ' reference.
Parameters:
  value - the new value of the 'Context' reference.
See Also:   RendererCreator.getContext()

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