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jpicedt.graphic.view
Interface Highlighter

All Known Implementing Classes:
DefaultHighlighterFactory.AbstractCurveHighlighter, DefaultHighlighterFactory.CircleHighlighter, DefaultHighlighterFactory.CompositeHighlighter, DefaultHighlighterFactory.DefaultHighlighter, DefaultHighlighterFactory.EllipseHighlighter, DefaultHighlighterFactory.PsCurveHighlighter, DefaultHighlighterFactory.SmoothPolygonHighlighter, DefaultHighlighterFactory.TextHighlighter

public interface Highlighter

a view dedicated to painting an Element's highlighter, e.g. when the Element is selected. This is a delegate for a hosting HighlightableView, and is created by a dedicated HighlighterFactory.
This highlighter should provide the following capabilities :

Since:
jpicedt 1.4
Version:
$Id: Highlighter.java,v 1.4.2.1 2007/09/02 11:56:29 reynal Exp $
Author:
Sylvain Reynal

Method Summary
 void changedUpdate(DrawingEvent.EventType eventType, double scale)
          Give notification from the model that a change occured for an element's highlighting this highlighter is responsible for rendering.
 Rectangle2D getBounds()
           
 HighlighterFactory getHighlighterFactory()
          Fetches the HighlighterFactory implementation that is feeding the view hierarchy.
 HitInfo hitTest(PEMouseEvent e)
           
 void paint(Graphics2D g, Rectangle2D allocation, double scale)
          Render the Highlighter to the given graphic context.
 

Method Detail

getHighlighterFactory

HighlighterFactory getHighlighterFactory()
Fetches the HighlighterFactory implementation that is feeding the view hierarchy.

Returns:
the factory, null if none

changedUpdate

void changedUpdate(DrawingEvent.EventType eventType,
                   double scale)
Give notification from the model that a change occured for an element's highlighting this highlighter is responsible for rendering.


paint

void paint(Graphics2D g,
           Rectangle2D allocation,
           double scale)
Render the Highlighter to the given graphic context.

Parameters:
allocation - current clipping
scale - The current scale factor from model to screen for the Graphics2D context ; this may be used to scale down line thickess, etc... so that lines/rectangle/... appear with the same lenght on the screen whatever the scale factor that's set to the graphic context.

getBounds

Rectangle2D getBounds()
Returns:
the bounds of this Highlighter
This will determine the clipping rectangle passed as a parameter to repaint in the hosting view

hitTest

HitInfo hitTest(PEMouseEvent e)
Returns:
a HitInfo corresponding to the given mouse-event on this Highlighter.

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Submit a bug : syd@jpicedt.org