org.eclipse.zest.core.widgets
Class GraphItem

java.lang.Object
  org.eclipse.swt.widgets.Widget
      org.eclipse.swt.widgets.Item
          org.eclipse.zest.core.widgets.GraphItem

Direct Known Subclasses:

GraphConnection, GraphNode

public abstract class GraphItem
extends Item

Provides support for property changes. All model elements extend this class. Also extends the Item (Widget) class to be used inside a StructuredViewer.

Field Summary

static int	CONNECTION
static int	CONTAINER
static int	GRAPH
static int	NODE

Constructor Summary

GraphItem(Widget parent, int style)

GraphItem(Widget parent, int style, java.lang.Object data)

Method Summary

protected boolean	checkStyle(int styleToCheck) Checks a style to see if it is set on the given graph item
void	dispose()
abstract Graph	getGraphModel() Gets the graph that this item is rooted on.
abstract int	getItemType() Gets the graph item type.
abstract void	highlight() Highlights the current GraphItem.
abstract boolean	isVisible() Get the visibility of this item.
abstract void	setVisible(boolean visible) Set the visibility of this item.
abstract void	unhighlight() Unhighlight sets the graphItem (either a graphNode or graphConnection) back to the unhighlight figure or color.

Methods inherited from class org.eclipse.swt.widgets.Item

checkSubclass, getImage, getText, setImage, setText

Methods inherited from class org.eclipse.swt.widgets.Widget

addDisposeListener, addListener, checkWidget, getData, getData, getDisplay, getListeners, getStyle, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, reskin, setData, setData, toString

Methods inherited from class java.lang.Object

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

Field Detail

GRAPH

public static final int GRAPH

See Also:

Constant Field Values

NODE

public static final int NODE

See Also:

Constant Field Values

CONNECTION

public static final int CONNECTION

See Also:

Constant Field Values

CONTAINER

public static final int CONTAINER

See Also:

Constant Field Values

Constructor Detail

GraphItem

public GraphItem(Widget parent,
                 int style)

Parameters:

parent -

style -

GraphItem

public GraphItem(Widget parent,
                 int style,
                 java.lang.Object data)

Parameters:

parent -

style -

Method Detail

dispose

public void dispose()

Overrides:

dispose in class Widget

getItemType

public abstract int getItemType()

Gets the graph item type. The item type is one of: GRAPH, NODE or CONNECTION

Returns:

setVisible

public abstract void setVisible(boolean visible)

Set the visibility of this item.

Parameters:

visible - whether or not this item is visible.

isVisible

public abstract boolean isVisible()

Get the visibility of this item.

Returns:

the visibility of this item.

getGraphModel

public abstract Graph getGraphModel()

Gets the graph that this item is rooted on. If this item is itself a graph, then this is returned.

Returns:

the parent graph.

highlight

public abstract void highlight()

Highlights the current GraphItem. A graph item is either a graph node or graph connection, and highlighting them will set the appropriate highlight color.

unhighlight

public abstract void unhighlight()

Unhighlight sets the graphItem (either a graphNode or graphConnection) back to the unhighlight figure or color.

checkStyle

protected boolean checkStyle(int styleToCheck)

Checks a style to see if it is set on the given graph item

Parameters:

styleToCheck - The style to check

Returns: