Package org.eclipse.gef.zest.fx.jface

Class ZestContentViewer

java.lang.Object

org.eclipse.jface.viewers.Viewer

org.eclipse.jface.viewers.ContentViewer

org.eclipse.gef.zest.fx.jface.ZestContentViewer

All Implemented Interfaces:

IInputProvider, IInputSelectionProvider, ISelectionProvider

public class ZestContentViewer
extends ContentViewer

The ZestContentViewer is a ContentViewer that is capable of displaying Graphs.

Field Summary

Fields inherited from class org.eclipse.jface.viewers.Viewer

WIDGET_DATA_KEY

Constructor Summary

Constructors

Constructor	Description
ZestContentViewer(Module module)	Constructs a new ZestContentViewer.

Method Summary

Modifier and Type	Method	Description
protected FXCanvas	createCanvas(Composite parent, int style)	Creates an FXCanvas inside of the given parent Composite.
void	createControl(Composite parent, int style)	Creates the control for this ZestContentViewer inside of the given parent Composite.
protected Edge	createEdge(ILabelProvider labelProvider, Object contentSourceNode, Node sourceNode, Object contentTargetNode, Node targetNode)	Constructs and returns a new Edge connecting the given sourceNode and targetNode.
protected Graph	createEmptyGraph()	Constructs and returns a new Graph and inserts default attributes into it: layout algorithm
protected Graph	createNestedGraph(Object contentNestingNode, IGraphContentProvider graphContentProvider, ILabelProvider labelProvider)	Creates a Graph nested in the node represented by the given contentNestingNode.
protected Node	createNode(Object contentNode, IGraphContentProvider graphContentProvider, ILabelProvider labelProvider)	Creates a Node for the specified contentNode using the IContentProvider and ILabelProvider.
protected void	createNodesAndEdges(IGraphContentProvider graphContentProvider, ILabelProvider labelProvider, Graph graph, Object[] contentNodes)	Creates graph nodes and edges from the given array of contentNodes.
protected Graph	createRootGraph(IContentProvider contentProvider, ILabelProvider labelProvider)	Creates a complete Graph using the given IContentProvider and ILabelProvider.
Map<Object,Node>	getContentNodeMap()	Returns an unmodifiable view of the content-node-map.
IViewer	getContentViewer()	Returns the IViewer that displays the contents.
FXCanvas	getControl()
ILabelProvider	getLabelProvider()
ILayoutAlgorithm	getLayoutAlgorithm()	Returns the ILayoutAlgorithm that is used for laying out the contents.
ISelection	getSelection()
protected SelectionModel	getSelectionModel()	Retrieves the SelectionModel used by the viewer ( getContentViewer())
protected void	handleDispose(DisposeEvent event)
protected void	inputChanged(Object input, Object oldInput)
void	refresh()
void	setLayoutAlgorithm(ILayoutAlgorithm layoutAlgorithm)	Changes the ILayoutAlgorithm that is used for laying out the contents to the given value.
void	setSelection(ISelection selection, boolean reveal)
protected String	toCssRgb(Color color)	Converts the given Color into a CSS string: "rgb(red,green,blue)".

Methods inherited from class org.eclipse.jface.viewers.ContentViewer

getContentProvider, getInput, handleLabelProviderChanged, hookControl, labelProviderChanged, setContentProvider, setInput, setLabelProvider

Methods inherited from class org.eclipse.jface.viewers.Viewer

addHelpListener, addSelectionChangedListener, fireHelpRequested, fireSelectionChanged, getData, handleHelpRequest, removeHelpListener, removeSelectionChangedListener, scrollDown, scrollUp, setData, setSelection

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ZestContentViewer

public ZestContentViewer(Module module)

Constructs a new ZestContentViewer. The given Module is saved so that it can be later used to create an Injector that is later used for the injection of members and the construction of the IDomain.

Parameters:

module - The Module from which an Injector is created later.

Method Details

createCanvas

protected FXCanvas createCanvas(Composite parent,
 int style)

Creates an FXCanvas inside of the given parent Composite. The FXCanvas serves acs the container for the JavaFX Scene which renders the contents.

Parameters:

parent - The parent Composite.

style - The SWT style bits to be used for the to be created canvas.

Returns:

An FXCanvas inside of the given parent.

createControl

public void createControl(Composite parent,
 int style)

Creates the control for this ZestContentViewer inside of the given parent Composite.

Parameters:

parent - The parent Composite.

style - The SWT style for this ZestContentViewer, which will be forwarded to its FXCanvas control.

createEdge

protected Edge createEdge(ILabelProvider labelProvider,
 Object contentSourceNode,
 Node sourceNode,
 Object contentTargetNode,
 Node targetNode)

Constructs and returns a new Edge connecting the given sourceNode and targetNode. If the labelProvider implements IGraphAttributesProvider, then attributes for the edge are determined using the IGraphAttributesProvider.getEdgeAttributes(Object, Object) methods and inserted into the edge.

Parameters:

labelProvider - This viewer's ILabelProvider for convenience.

contentSourceNode - The content element representing the source node of this edge.

sourceNode - The already created source Node of this edge.

contentTargetNode - The content element representing the target node of this edge.

targetNode - The already created target Node of this edge.

Returns:

The new Edge.

createEmptyGraph

protected Graph createEmptyGraph()

Constructs and returns a new Graph and inserts default attributes into it:

1. layout algorithm

Returns:

A new Graph with default attributes.

createNestedGraph

protected Graph createNestedGraph(Object contentNestingNode,
 IGraphContentProvider graphContentProvider,
 ILabelProvider labelProvider)

Creates a Graph nested in the node represented by the given contentNestingNode.

Parameters:

contentNestingNode - The content Object that represents the nesting node.

graphContentProvider - This viewer's IGraphContentProvider for convenience.

labelProvider - This viewer's ILabelProvider for convenience.

Returns:

The new Graph.

createNode

protected Node createNode(Object contentNode,
 IGraphContentProvider graphContentProvider,
 ILabelProvider labelProvider)

Creates a Node for the specified contentNode using the IContentProvider and ILabelProvider. Moreover, the new node is put into the given contentToGraphMap.

Parameters:

contentNode - The content Object that represents the node.

graphContentProvider - This viewer's IGraphContentProvider for convenience.

labelProvider - This viewer's ILabelProvider for convenience.

Returns:

The new Node.

createNodesAndEdges

protected void createNodesAndEdges(IGraphContentProvider graphContentProvider,
 ILabelProvider labelProvider,
 Graph graph,
 Object[] contentNodes)

Creates graph nodes and edges from the given array of contentNodes.

Parameters:

graphContentProvider - This viewer's IGraphContentProvider for convenience.

labelProvider - This viewer's ILabelProvider for convenience.

graph - The Graph for which nodes and edges are created.

contentNodes - Content elements which represent nodes that are to be created together with the edges between them.

createRootGraph

protected Graph createRootGraph(IContentProvider contentProvider,
 ILabelProvider labelProvider)

Creates a complete Graph using the given IContentProvider and ILabelProvider.

Parameters:

contentProvider - The IContentProvider for this viewer.

labelProvider - The ILabelProvider for this viewer.

Returns:

A complete Graph constructed by using the given providers.

getContentNodeMap

public Map<Object,Node> getContentNodeMap()

Returns an unmodifiable view of the content-node-map.

Returns:

An unmodifiable view of the content-node-map.

getContentViewer

public IViewer getContentViewer()

Returns the IViewer that displays the contents.

Returns:

The IViewer that displays the contents.

getControl

public FXCanvas getControl()

Specified by:

getControl in class Viewer

getLabelProvider

public ILabelProvider getLabelProvider()

Overrides:

getLabelProvider in class ContentViewer

getLayoutAlgorithm

public ILayoutAlgorithm getLayoutAlgorithm()

Returns the ILayoutAlgorithm that is used for laying out the contents.

Returns:

The ILayoutAlgorithm that is used for laying out the contents.

getSelection

public ISelection getSelection()

Specified by:

getSelection in interface ISelectionProvider

Specified by:

getSelection in class Viewer

getSelectionModel

protected SelectionModel getSelectionModel()

Retrieves the SelectionModel used by the viewer ( getContentViewer())

Returns:

The SelectionModel adapted to the viewer ( getContentViewer()).

handleDispose

protected void handleDispose(DisposeEvent event)

Overrides:

handleDispose in class ContentViewer

inputChanged

protected void inputChanged(Object input,
 Object oldInput)

Overrides:

inputChanged in class Viewer

refresh

public void refresh()

Specified by:

refresh in class Viewer

setLayoutAlgorithm

public void setLayoutAlgorithm(ILayoutAlgorithm layoutAlgorithm)

Changes the ILayoutAlgorithm that is used for laying out the contents to the given value.

Parameters:

layoutAlgorithm - The new ILayoutAlgorithm to use.

setSelection

public void setSelection(ISelection selection,
 boolean reveal)

Specified by:

setSelection in class Viewer

toCssRgb

protected String toCssRgb(Color color)

Converts the given Color into a CSS string: "rgb(red,green,blue)".

Parameters:

color - The Color to convert.

Returns:

The corresponding CSS string.