Package net.sourceforge.jeuclid.layout

Class JEuclidView

java.lang.Object

net.sourceforge.jeuclid.layout.JEuclidView

All Implemented Interfaces:

LayoutView, EventListener, AbstractView

public class JEuclidView
extends Object
implements AbstractView, LayoutView, EventListener

Version:

$Revision: 96bf1edada57 $

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	JEuclidView.NodeRect	Data structure for storing a Node along with its rendering boundary (Rectangle2D).

Constructor Summary

Constructors

Constructor	Description
JEuclidView(Node node, LayoutContext layoutContext, Graphics2D layoutGraphics)	Default Constructor.

Method Summary

Modifier and Type	Method	Description
void	draw(Graphics2D g, float x, float y)	Draw this view onto a Graphics context.
float	getAscentHeight()
float	getDescentHeight()
DocumentView	getDocument()
Graphics2D	getGraphics()
LayoutInfo	getInfo(LayoutableNode node)	Retrieve the Info object for a given child.
List<JEuclidView.NodeRect>	getNodesAt(float x, float y, float offsetX, float offsetY)	Get the node and rendering information from a mouse position.
Rectangle2D	getRect(float offsetX, float offsetY, LayoutableNode node)	Gets the absolute Bounds for a given node and offset.
float	getWidth()
void	handleEvent(Event evt)

Methods inherited from class java.lang.Object

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

Constructor Details

JEuclidView

public JEuclidView(Node node,
 LayoutContext layoutContext,
 Graphics2D layoutGraphics)

Default Constructor.

Parameters:

node - document to layout.

layoutContext - layoutContext to use.

layoutGraphics - Graphics context to use for layout calculations. This should be compatible to the context used for painting, but does not have to be the same.

Method Details

getDocument

public DocumentView getDocument()

Specified by:

getDocument in interface AbstractView

draw

public void draw(Graphics2D g,
 float x,
 float y)

Draw this view onto a Graphics context.

Parameters:

g - Graphics context for painting. Should be compatible to the context used during construction, but does not have to be the same.

x - x-offset for left edge

y - y-offset for baseline

getInfo

public LayoutInfo getInfo(LayoutableNode node)

Retrieve the Info object for a given child.

Specified by:

getInfo in interface LayoutView

Parameters:

node - the node

Returns:

an LayoutInfo object.

getWidth

public float getWidth()

Returns:

width of this view.

getAscentHeight

public float getAscentHeight()

Returns:

ascent height.

getDescentHeight

public float getDescentHeight()

Returns:

descent height.

getGraphics

public Graphics2D getGraphics()

Specified by:

getGraphics in interface LayoutView

Returns:

the Layout Graphics Context.

handleEvent

public void handleEvent(Event evt)

Specified by:

handleEvent in interface EventListener

getNodesAt

public List<JEuclidView.NodeRect> getNodesAt(float x,
 float y,
 float offsetX,
 float offsetY)

Get the node and rendering information from a mouse position.

Parameters:

x - x-coord

y - y-coord

offsetX - starting x position offset

offsetY - starting y position offset

Returns:

list of nodes with rendering information

getRect

public Rectangle2D getRect(float offsetX,
 float offsetY,
 LayoutableNode node)

Gets the absolute Bounds for a given node and offset. May return null if the node could not be found.

Parameters:

offsetX - x position offset to node

offsetY - y position offset to node

node - A layoutable node which was layouted in the current view.

Returns:

the rectangle with the absolute bounds or null if the given node was not layouted in this view.