Package ghidra.graph.viewer.layout
Class AbstractVisualGraphLayout<V extends VisualVertex,E extends VisualEdge<V>>
java.lang.Object
edu.uci.ics.jung.algorithms.layout.AbstractLayout<V,E>
ghidra.graph.viewer.layout.AbstractVisualGraphLayout<V,E>
- Type Parameters:
V
- the vertex typeE
- the edge type
- All Implemented Interfaces:
com.google.common.base.Function<V,
,Point2D> edu.uci.ics.jung.algorithms.layout.Layout<V,
,E> VisualGraphLayout<V,
,E> Function<V,
Point2D>
public abstract class AbstractVisualGraphLayout<V extends VisualVertex,E extends VisualEdge<V>>
extends edu.uci.ics.jung.algorithms.layout.AbstractLayout<V,E>
implements VisualGraphLayout<V,E>
A base layout that marries the Visual Graph and Jung layout interfaces. This class allows
you to create new layouts while stubbing the Jung layout methods.
This class essentially takes in client-produced grid row and column indices and produces layout locations for those values.
This an implementation the Jung Layout
interface that handles most of the
layout implementation for you. Things to know:
- You should call initialize() inside of your constructor
- You must implement
performInitialGridLayout(VisualGraph)
- this is where you align your vertices (and optionally edge articulations) on a grid. This grid will be translated into layout space points for you. - If you wish to use articulation points in your edges, you must override
usesEdgeArticulations()
to return true.
By default, this class will create x-position values that
are aligned with the column's x-position. You can override
getVertexLocation(VisualVertex, Column, Row, Rectangle)
in order to center the
vertex within its column
getCenteredVertexLocation(VisualVertex, Column, Row, Rectangle)
. Also note though
that if your layout returns true for isCondensedLayout()
,
then the centering will be condensed and slightly off.
- See Also:
-
Field Summary
Fields inherited from class edu.uci.ics.jung.algorithms.layout.AbstractLayout
graph, initialized, locations, size
-
Constructor Summary
ModifierConstructorDescriptionprotected
AbstractVisualGraphLayout
(edu.uci.ics.jung.graph.Graph<V, E> graph, String layoutName) -
Method Summary
Modifier and TypeMethodDescriptionvoid
addLayoutListener
(LayoutListener<V, E> listener) Adds a layout listenerprotected void
applyNewArticulations
(Map<E, List<Point2D>> edgeArticulations) protected void
applyNewLocations
(Map<V, Point2D> newLocations) calculateLocations
(VisualGraph<V, E> visualGraph, TaskMonitor taskMonitor) Signals to again layout the current graph.cloneLayout
(VisualGraph<V, E> newGraph) Creates a new version of this layout using the given graph.protected void
condenseEdges
(List<Row<V>> rows, Map<E, List<Point2D>> newEdgeArticulations, double centerX, double centerY) protected void
condenseVertices
(List<Row<V>> rows, Map<V, Point2D> newLocations, VisualGraphVertexShapeTransformer<V> transformer, double centerX, double centerY) abstract AbstractVisualGraphLayout
<V, E> createClonedLayout
(VisualGraph<V, E> newGraph) This class has implementedcloneLayout(VisualGraph)
in order to properly initialize location information in the layout so that subclasses do not have to.void
dispose()
Cleanup any resource being managed by this layout.protected LayoutPositions
<V, E> doCalculateLocations
(VisualGraph<V, E> g, TaskMonitor taskMonitor) protected Point2D
getCenteredEdgeLocation
(Column col, Row<V> row) protected Point2D
Returns a location for the given vertex that is centered within its cellprotected double
The amount (from 0 to 1.0) by which to condense the vertices of the graph when that feature is enabled.Returns an optional custom edge label renderer.protected Point2D
getEdgeLocation
(Column col, Row<V> row) Returns an optional edge renderer.Returns an optional edge shape transformer.Returns the name of this layoutprotected Point2D
void
protected void
initializeClonedLayout
(AbstractVisualGraphLayout<V, E> newLayout) Takes the given layout and copies the layout information this layout into that layoutprotected boolean
Returns true if this layout is in a condensed mode, which means to reduce space between vertices and edges.protected abstract GridLocationMap
<V, E> This is the method that is called to perform the actual layout.positionEdgeArticulationsInLayoutSpace
(VisualGraphVertexShapeTransformer<V> transformer, Map<V, Point2D> vertexLayoutLocations, Collection<E> edges, LayoutLocationMap<V, E> layoutLocations) protected LayoutPositions
<V, E> positionInLayoutSpaceFromGrid
(VisualGraph<V, E> visualGraph, GridLocationMap<V, E> gridLocations) void
removeLayoutListener
(LayoutListener<V, E> listener) Removes a layout listenervoid
reset()
void
setLocation
(V v, Point2D location) void
setLocation
(V v, Point2D location, LayoutListener.ChangeType changeType) Allows the client to change the location while specifying the type of changevoid
setTaskMonitor
(TaskMonitor monitor) boolean
Returns true if this layout uses articulated edges.Methods inherited from class edu.uci.ics.jung.algorithms.layout.AbstractLayout
apply, getGraph, getSize, getX, getY, isLocked, lock, lock, offsetVertex, setGraph, setInitializer, setLocation, setSize
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface com.google.common.base.Function
apply, equals
Methods inherited from interface edu.uci.ics.jung.algorithms.layout.Layout
getGraph, getSize, isLocked, lock, setGraph, setInitializer, setSize
Methods inherited from interface ghidra.graph.viewer.layout.VisualGraphLayout
getVisualGraph
-
Field Details
-
layoutName
-
layoutInitialized
protected boolean layoutInitialized -
monitor
-
-
Constructor Details
-
AbstractVisualGraphLayout
-
-
Method Details
-
getLayoutName
Returns the name of this layout- Returns:
- the name of this layout
-
performInitialGridLayout
protected abstract GridLocationMap<V,E> performInitialGridLayout(VisualGraph<V, E> g) throws CancelledExceptionThis is the method that is called to perform the actual layout. While this method is running, themonitor
variable has been set so that you can callTaskMonitor.checkCancelled()
.- Parameters:
g
- the graph- Returns:
- the new grid location
- Throws:
CancelledException
- if the operation was cancelled
-
setTaskMonitor
-
getEdgeRenderer
Description copied from interface:VisualGraphLayout
Returns an optional edge renderer. This is used to render each edge.- Specified by:
getEdgeRenderer
in interfaceVisualGraphLayout<V extends VisualVertex,
E extends VisualEdge<V>> - Returns:
- an optional edge renderer
-
getEdgeShapeTransformer
Description copied from interface:VisualGraphLayout
Returns an optional edge shape transformer. This is used to create shapes for each edge.- Specified by:
getEdgeShapeTransformer
in interfaceVisualGraphLayout<V extends VisualVertex,
E extends VisualEdge<V>> - Returns:
- an optional edge shape transformer
-
getEdgeLabelRenderer
Description copied from interface:VisualGraphLayout
Returns an optional custom edge label renderer. This is used to add labels to the edges.- Specified by:
getEdgeLabelRenderer
in interfaceVisualGraphLayout<V extends VisualVertex,
E extends VisualEdge<V>> - Returns:
- an optional renderer
-
usesEdgeArticulations
public boolean usesEdgeArticulations()Description copied from interface:VisualGraphLayout
Returns true if this layout uses articulated edges. AllVisualEdge
s have the ability to articulate. This method servers as a shortcut for algorithms so that they need not loop over all edges to determine if they have articulations. (Looping over large graphs is time intensive.)- Specified by:
usesEdgeArticulations
in interfaceVisualGraphLayout<V extends VisualVertex,
E extends VisualEdge<V>> - Returns:
- true if this layout uses articulated edges.
-
reset
public void reset()- Specified by:
reset
in interfaceedu.uci.ics.jung.algorithms.layout.Layout<V extends VisualVertex,
E extends VisualEdge<V>>
-
dispose
public void dispose()Description copied from interface:VisualGraphLayout
Cleanup any resource being managed by this layout.- Specified by:
dispose
in interfaceVisualGraphLayout<V extends VisualVertex,
E extends VisualEdge<V>>
-
isCondensedLayout
protected boolean isCondensedLayout()Returns true if this layout is in a condensed mode, which means to reduce space between vertices and edges. This is useful to save space. Subclasses may choose to have this setting controlled via an option that the user can toggle.- Returns:
- true for a condensed layout
-
initialize
public void initialize()- Specified by:
initialize
in interfaceedu.uci.ics.jung.algorithms.layout.Layout<V extends VisualVertex,
E extends VisualEdge<V>>
-
calculateLocations
public LayoutPositions<V,E> calculateLocations(VisualGraph<V, E> visualGraph, TaskMonitor taskMonitor) Description copied from interface:VisualGraphLayout
Signals to again layout the current graph. The locations generated by the layout will be returned, but not actually applied to the graph. This allows clients to generate new locations and then apply them in a delayed fashion, like for animation.- Specified by:
calculateLocations
in interfaceVisualGraphLayout<V extends VisualVertex,
E extends VisualEdge<V>> - Parameters:
visualGraph
- the graph that contains the vertices to layouttaskMonitor
- the task monitor used to report progress or to cancel- Returns:
- the layout locations
-
doCalculateLocations
-
createClonedLayout
This class has implementedcloneLayout(VisualGraph)
in order to properly initialize location information in the layout so that subclasses do not have to. Each subclass still needs to create the new instance of the layout that is being cloned, as this class does not know how to do so.- Parameters:
newGraph
- the new graph for the new layout- Returns:
- the new layout
-
cloneLayout
Description copied from interface:VisualGraphLayout
Creates a new version of this layout using the given graph. Also, the new layout will have the same state as this layout (i.e., vertex positions (and edge articulations, if applicable)).- Specified by:
cloneLayout
in interfaceVisualGraphLayout<V extends VisualVertex,
E extends VisualEdge<V>> - Parameters:
newGraph
- the new graph for the new layout- Returns:
- the new layout
-
initializeClonedLayout
Takes the given layout and copies the layout information this layout into that layout- Parameters:
newLayout
- the new layout to update
-
applyNewLocations
-
applyNewArticulations
-
positionInLayoutSpaceFromGrid
protected LayoutPositions<V,E> positionInLayoutSpaceFromGrid(VisualGraph<V, E> visualGraph, GridLocationMap<V, throws CancelledExceptionE> gridLocations) - Throws:
CancelledException
-
getVertexLocation
-
getCenteredVertexLocation
Returns a location for the given vertex that is centered within its cell- Parameters:
v
- the vertexcol
- the vertex's column in the gridrow
- the vertex's row in the gridbounds
- the bounds of the vertex in the layout space- Returns:
- the centered location
-
positionEdgeArticulationsInLayoutSpace
protected Map<E,List<Point2D>> positionEdgeArticulationsInLayoutSpace(VisualGraphVertexShapeTransformer<V> transformer, Map<V, Point2D> vertexLayoutLocations, Collection<E> edges, LayoutLocationMap<V, throws CancelledExceptionE> layoutLocations) - Throws:
CancelledException
-
getEdgeLocation
-
getCenteredEdgeLocation
-
condenseVertices
-
condenseEdges
-
getCondenseFactor
protected double getCondenseFactor()The amount (from 0 to 1.0) by which to condense the vertices of the graph when that feature is enabled. The default is .5 (50%). A value of 1.0 would be fully-condensed such that all vertices are aligned on the x-axis on the center of the graph.- Returns:
- the condense factor
-
addLayoutListener
Description copied from interface:VisualGraphLayout
Adds a layout listener- Specified by:
addLayoutListener
in interfaceVisualGraphLayout<V extends VisualVertex,
E extends VisualEdge<V>> - Parameters:
listener
- the listener
-
removeLayoutListener
Description copied from interface:VisualGraphLayout
Removes a layout listener- Specified by:
removeLayoutListener
in interfaceVisualGraphLayout<V extends VisualVertex,
E extends VisualEdge<V>> - Parameters:
listener
- the listener
-
setLocation
- Specified by:
setLocation
in interfaceedu.uci.ics.jung.algorithms.layout.Layout<V extends VisualVertex,
E extends VisualEdge<V>> - Overrides:
setLocation
in classedu.uci.ics.jung.algorithms.layout.AbstractLayout<V extends VisualVertex,
E extends VisualEdge<V>>
-
setLocation
Description copied from interface:VisualGraphLayout
Allows the client to change the location while specifying the type of change- Specified by:
setLocation
in interfaceVisualGraphLayout<V extends VisualVertex,
E extends VisualEdge<V>> - Parameters:
v
- the vertexlocation
- the new locationchangeType
- the type of change
-