Package jpicedt.graphic.view

Class DefaultHighlighterFactory.DefaultHighlighter

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected java.awt.geom.Rectangle2D.Double bounds
      cache for highlighter bounds
      protected Element element
      highlighted Element
      protected PointIndexIterator pointIndexIterator
      iterator over visible control-points
      protected PicPoint ptBuffer
      buffer used by paint only ; may be safely used by subclasses as well
      protected java.awt.geom.Rectangle2D rectBuffer
      buffer used by paint only ; may be safely used by subclasses as well
      protected java.awt.Shape shape
      highlighter shape ; should be null if N/A in subclass

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      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.
      java.awt.geom.Rectangle2D getBounds()  
      protected PointIndexIterator getControlPointsIterator()
      Returns an iterator over control-points that should be displayed by the hightligher.
      Element getElement()
      returns the higlighted Element
      HighlighterFactory getHighlighterFactory()
      Fetches the HighlighterFactory implementation that is feeding the view hierarchy.
      HitInfo hitTest​(PEMouseEvent e)
      Current implementation returns a HitInfo.Point if a click occured on one of the controlled-point indices returned by getControlPointsIterator() ; return null otherwise.
      void paint​(java.awt.Graphics2D g, java.awt.geom.Rectangle2D allocation, double scale)
      Render the Highlighter to the given graphic context.
      Current implementation paints end-points by delegating to a DefaultPointIndexIterator, using the highlighter color if the given allocation intersects the bounds of this view, then iterates over the shapes array, and paints any non-null element.
      protected void syncBounds​(double scale)
      Synchronizes the highlighter's bounding rectangle (aka clip) with the model ; "bounds" is first computed from the set of visible control-points, then its size gets increased by BARBELL_SIZE.
      protected void syncShape​(double scale)
      Synchronize the shape needed to paint this highlighter, with the model ; This implementation does nothing.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • element

        protected Element element
        highlighted Element

      • pointIndexIterator

        protected PointIndexIterator pointIndexIterator
        iterator over visible control-points

      • shape

        protected java.awt.Shape shape
        highlighter shape ; should be null if N/A in subclass

      • bounds

        protected java.awt.geom.Rectangle2D.Double bounds
        cache for highlighter bounds

      • rectBuffer

        protected java.awt.geom.Rectangle2D rectBuffer
        buffer used by paint only ; may be safely used by subclasses as well

      • ptBuffer

        protected PicPoint ptBuffer
        buffer used by paint only ; may be safely used by subclasses as well

    • Constructor Detail

      • DefaultHighlighter

        public DefaultHighlighter​(Element element)
        Parameters:
        element - the Element to be highlighted

    • Method Detail

      • getElement

        public Element getElement()
        returns the higlighted Element

      • getHighlighterFactory

        public HighlighterFactory getHighlighterFactory()
        Fetches the HighlighterFactory implementation that is feeding the view hierarchy.
        Specified by:
        getHighlighterFactory in interface Highlighter
        Returns:
        the factory, null if none

      • changedUpdate

        public 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. To reduce the burden for subclasses, this implemention dispatches to the following methods, in that order, depending on the value of "eventType" :
        • syncShape() if it's a DrawingEvent.GEOMETRY_CHANGE
        • syncBounds() if it's a DrawingEvent.GEOMETRY_CHANGE
        Specified by:
        changedUpdate in interface Highlighter

      • syncBounds

        protected void syncBounds​(double scale)
        Synchronizes the highlighter's bounding rectangle (aka clip) with the model ; "bounds" is first computed from the set of visible control-points, then its size gets increased by BARBELL_SIZE. Finally, is shape is not null, its gets added to the bounding rectangle.
        Parameters:
        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 e.g. barbells appear with the same size on the screen whatever the scale factor being set to the graphic context.

      • syncShape

        protected void syncShape​(double scale)
        Synchronize the shape needed to paint this highlighter, with the model ; This implementation does nothing.
        Parameters:
        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 e.g. barbells appear with the same size on the screen whatever the scale factor being set to the graphic context.

      • paint

        public void paint​(java.awt.Graphics2D g,
                  java.awt.geom.Rectangle2D allocation,
                  double scale)
        Render the Highlighter to the given graphic context.
        Current implementation paints end-points by delegating to a DefaultPointIndexIterator, using the highlighter color if the given allocation intersects the bounds of this view, then iterates over the shapes array, and paints any non-null element.
        Specified by:
        paint in interface Highlighter
        Parameters:
        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 e.g. barbells appear with the same size on the screen whatever the scale factor being set to the graphic context.
        allocation - current clipping

      • getControlPointsIterator

        protected PointIndexIterator getControlPointsIterator()
        Returns an iterator over control-points that should be displayed by the hightligher. This default implementation iterates over all control-points.

      • getBounds

        public java.awt.geom.Rectangle2D getBounds()
        Specified by:
        getBounds in interface Highlighter
        Returns:
        the bounds of this Highlighter
        This will determine the clipping rectangle passed as a parameter to repaint in the hosting view

      • hitTest

        public HitInfo hitTest​(PEMouseEvent e)
        Current implementation returns a HitInfo.Point if a click occured on one of the controlled-point indices returned by getControlPointsIterator() ; return null otherwise.
        Specified by:
        hitTest in interface Highlighter
        Returns:
        a HitInfo corresponding to the given mouse-event