votorola.s.gwt.stage.vote

Class NodeVPainter

java.lang.Object

NodeVPainter

All Implemented Interfaces:

ResizeHandler, EventHandler, PropertyChangeHandler

Direct Known Subclasses:

BoardV.Painter

abstract class NodeVPainter
extends Object
implements PropertyChangeHandler, ResizeHandler

A device to calculate the dimensions and drawing parameters of node views. This is complicated because the rendered size of the SVG element is unknown, its offset dimensions always being reported as zero (at least with Firefox 9). As a workaround, the calculations are based instead on the rendered size of the HTML container. For this to work correctly, it is crucial that the sizes of the two match. SVG overflow cannot be made visible in Firefox; so if the SVG element happens to be smaller than the container, then its overflow will end up being truncated ("hidden"). Ideally the element should be set to 100% of the container size in vote/track.css.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static int	MARGIN_BOTTOM The margin to respect below the node view in pixels.
(package private) static int	MARGIN_TOP The margin to respect above the node view in pixels.

Constructor Summary

Constructors

Constructor and Description
NodeVPainter(MajorV _container) Partially creates a NodeVPainter for init to finish.

Method Summary

Methods

Modifier and Type	Method and Description
(package private) UIObject	container() The HTML container whose rendered size determines the dimensions of the node views.
(package private) void	init(Spool _spool) Completes the creation of this NodeVPainter and activates it.
void	onPropertyChange(PropertyChange e) Handles the event.
void	onResize(ResizeEvent _e)
(package private) void	repaint() Forces a recalibration.
(package private) abstract void	repaint(int width, float protrusion, int y, float halfThickness) Effects a recalibration and redraws the node views accordingly.

Methods inherited from class java.lang.Object

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

Field Detail

MARGIN_BOTTOM

static final int MARGIN_BOTTOM

The margin to respect below the node view in pixels.

See Also:

Constant Field Values

MARGIN_TOP

static final int MARGIN_TOP

The margin to respect above the node view in pixels.

See Also:

Constant Field Values

Constructor Detail

NodeVPainter

NodeVPainter(MajorV _container)

Partially creates a NodeVPainter for init to finish.

See Also:

container()

Method Detail

init

final void init(Spool _spool)

Completes the creation of this NodeVPainter and activates it. Call once only, preferably after the HTML container is rendered.

Parameters:

_spool - the spool for the release of associated holds. When unwound it releases the holds of the painter and thereby disables it.

container

final UIObject container()

The HTML container whose rendered size determines the dimensions of the node views.

repaint

final void repaint()

Forces a recalibration.

repaint

abstract void repaint(int width,
           float protrusion,
           int y,
           float halfThickness)

Effects a recalibration and redraws the node views accordingly.

Parameters:

width - the rendered width of the HTML container.

See Also:

NodeV.repaint(float,float,float,int,float)

onPropertyChange

public void onPropertyChange(PropertyChange e)

Description copied from interface: PropertyChangeHandler

Handles the event.

Specified by:

onPropertyChange in interface PropertyChangeHandler

onResize

public final void onResize(ResizeEvent _e)

Specified by:

onResize in interface ResizeHandler