visualitem.java

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     * to scale an item, either in one-dimension (e.g., a bar chart length) or
     * two-dimensions (e.g., using pixel area to encode a quantitative value).
     * @param size the starting size value
     * @see #STARTSIZE
     */
    public void setStartSize(double size);
    
    /**
     * Get the ending size value of the item. Size values are typically used
     * to scale an item, either in one-dimension (e.g., a bar chart length) or
     * two-dimensions (e.g., using pixel area to encode a quantitative value).
     * @return the ending size value
     * @see #ENDSIZE
     */
    public double getEndSize();
    
    /**
     * Set the ending size value of the item. Size values are typically used
     * to scale an item, either in one-dimension (e.g., a bar chart length) or
     * two-dimensions (e.g., using pixel area to encode a quantitative value).
     * @param size the ending size value
     * @see #ENDSIZE
     */
    public void setEndSize(double size);
    
    // ------------------------------------------------------------------------
    
    /**
     * Get the current shape value of the item. One of the SHAPE constants
     * included in the {@link prefuse.Constants} class. This value only has an
     * effect if a Renderer that supports different shapes is used
     * (e.g., {@link prefuse.render.ShapeRenderer}.
     * @return the current shape value
     * @see #SHAPE
     */
    public int getShape();
    
    /**
     * Set the current shape value of the item. One of the SHAPE constants
     * included in the {@link prefuse.Constants} class. This value only has an
     * effect if a Renderer that supports different shapes is used
     * (e.g., {@link prefuse.render.ShapeRenderer}.
     * @param shape the shape value to use
     * @see #SHAPE
     */
    public void setShape(int shape);
    
    // ------------------------------------------------------------------------
    
    /**
     * Get the current stroke used to draw lines and shape outlines.
     * @return the stroke used to draw lines and shape outlines
     */
    public BasicStroke getStroke();
    
    /**
     * Set the current stroke used to draw lines and shape outlines.
     * @param stroke the stroke to use to draw lines and shape outlines
     */
    public void setStroke(BasicStroke stroke);
    
    // ------------------------------------------------------------------------
    
    /**
     * Get the current font for the item. The font is used as the default
     * typeface for drawing text for this item.
     * @return the current font value
     * @see #FONT
     */
    public Font getFont();

    /**
     * Set the current font for the item. The font is used as the default
     * typeface for drawing text for this item.
     * @param font the current font value
     * @see #FONT
     */
    public void setFont(Font font);
    
    /**
     * Get the starting font for the item. The font is used as the default
     * typeface for drawing text for this item.
     * @return the starting font value
     * @see #STARTFONT
     */
    public Font getStartFont();

    /**
     * Set the starting font for the item. The font is used as the default
     * typeface for drawing text for this item.
     * @param font the starting font value
     * @see #STARTFONT
     */
    public void setStartFont(Font font);
    
    /**
     * Get the ending font for the item. The font is used as the default
     * typeface for drawing text for this item.
     * @return the ending font value
     * @see #ENDFONT
     */
    public Font getEndFont();
    
    /**
     * Set the ending font for the item. The font is used as the default
     * typeface for drawing text for this item.
     * @param font the ending font value
     * @see #ENDFONT
     */
    public void setEndFont(Font font);
    
    // ------------------------------------------------------------------------
    
    /**
     * Get the degree-of-interest (DOI) value. The degree-of-interet is an
     * optional value that can be used to sort items by importance, control
     * item visibility, or influence particular visual encodings. A common
     * example is to use the DOI to store the graph distance of a node from
     * the nearest selected focus node.
     * @return the DOI value of this item
     * @see #DOI
     */
    public double getDOI();
    
    /**
     * Set the degree-of-interest (DOI) value. The degree-of-interet is an
     * optional value that can be used to sort items by importance, control
     * item visibility, or influence particular visual encodings. A common
     * example is to use the DOI to store the graph distance of a node from
     * the nearest selected focus node.
     * @param doi the DOI value of this item
     * @see #DOI
     */
    public void setDOI(double doi);
    
    // ------------------------------------------------------------------------
    // VisualItem Base Schema
        
    /** The validated data field */
    public static final String VALIDATED
        = PrefuseLib.FIELD_PREFIX+"validated";
    /** The visible data field */
    public static final String VISIBLE
        = PrefuseLib.FIELD_PREFIX+"visible";
    /** The start visible data field */
    public static final String STARTVISIBLE
        = PrefuseLib.getStartField(VISIBLE);
    /** The end visible data field */
    public static final String ENDVISIBLE
        = PrefuseLib.getEndField(VISIBLE);
    /** The interactive data field */
    public static final String INTERACTIVE
        = PrefuseLib.FIELD_PREFIX+"interactive";
    /** The expanded data field */
    public static final String EXPANDED
        = PrefuseLib.FIELD_PREFIX+"expanded";
    /** The fixed data field */
    public static final String FIXED
        = PrefuseLib.FIELD_PREFIX+"fixed";
    /** The highlight data field */
    public static final String HIGHLIGHT
        = PrefuseLib.FIELD_PREFIX+"highlight";
    /** The hover data field */
    public static final String HOVER
        = PrefuseLib.FIELD_PREFIX+"hover";
    /** The x data field */
    public static final String X
        = PrefuseLib.FIELD_PREFIX+"x";
    /** The y data field */
    public static final String Y
        = PrefuseLib.FIELD_PREFIX+"y";
    /** The start x data field */
    public static final String STARTX
        = PrefuseLib.getStartField(X);
    /** The start y data field */
    public static final String STARTY
        = PrefuseLib.getStartField(Y);
    /** The end x data field */
    public static final String ENDX
        = PrefuseLib.getEndField(X);
    /** The end y data field */
    public static final String ENDY
        = PrefuseLib.getEndField(Y);
    /** The bounds data field */
    public static final String BOUNDS
        = PrefuseLib.FIELD_PREFIX+"bounds";
    /** The stroke color data field */
    public static final String STROKECOLOR
        = PrefuseLib.FIELD_PREFIX+"strokeColor";
    /** The start stroke color data field */
    public static final String STARTSTROKECOLOR
        = PrefuseLib.getStartField(STROKECOLOR);
    /** The end stroke color data field */
    public static final String ENDSTROKECOLOR
        = PrefuseLib.getEndField(STROKECOLOR);
    /** The fill color data field */
    public static final String FILLCOLOR
        = PrefuseLib.FIELD_PREFIX+"fillColor";
    /** The start fill color data field */
    public static final String STARTFILLCOLOR
        = PrefuseLib.getStartField(FILLCOLOR);
    /** The end fill color data field */
    public static final String ENDFILLCOLOR
        = PrefuseLib.getEndField(FILLCOLOR);
    /** The text color data field */
    public static final String TEXTCOLOR
        = PrefuseLib.FIELD_PREFIX+"textColor";
    /** The start text color data field */
    public static final String STARTTEXTCOLOR
        = PrefuseLib.getStartField(TEXTCOLOR);
    /** The end text color data field */
    public static final String ENDTEXTCOLOR
        = PrefuseLib.getEndField(TEXTCOLOR);
    /** The size data field */
    public static final String SIZE
        = PrefuseLib.FIELD_PREFIX+"size";
    /** The start size data field */
    public static final String STARTSIZE
        = PrefuseLib.getStartField(SIZE);
    /** The end size data field */
    public static final String ENDSIZE
        = PrefuseLib.getEndField(SIZE);
    /** The shape data field */
    public static final String SHAPE
        = PrefuseLib.FIELD_PREFIX+"shape";
    /** The stroke data field */
    public static final String STROKE
        = PrefuseLib.FIELD_PREFIX+"stroke";
    /** The font data field */
    public static final String FONT
        = PrefuseLib.FIELD_PREFIX+"font";
    /** The start font data field */
    public static final String STARTFONT
        = PrefuseLib.getStartField(FONT);
    /** The end font data field */
    public static final String ENDFONT
        = PrefuseLib.getEndField(FONT);
    /** The doi data field */
    public static final String DOI
        = PrefuseLib.FIELD_PREFIX+"doi";
    
    /** A permanent, locked copy of the base VisualItem schema */
    public static final Schema SCHEMA
        = PrefuseLib.getVisualItemSchema().lockSchema();
    
    /** 
     *  The column index of the validated data field. This should be safe to do
     *  because a unique (non-inherited) validated field is required of all
     *  VisualItems, and should always be the first field included.
     */
    public static final int IDX_VALIDATED 
        = SCHEMA.getColumnIndex(VALIDATED);
    
    // ------------------------------------------------------------------------
    // VisualItem Extended Schema
    
    /** The label data field.
     * Not included in the VisualItem schema by default */
    public static final String LABEL
        = PrefuseLib.FIELD_PREFIX+"label";
    /** The value data field.
     * Not included in the VisualItem schema by default */
    public static final String VALUE
        = PrefuseLib.FIELD_PREFIX+"value";
    
    /** The polygon data field.
     * Not included in the VisualItem schema by default */
    public static final String POLYGON
        = PrefuseLib.FIELD_PREFIX+"polygon";
    /** The start polygon data field.
     * Not included in the VisualItem schema by default */
    public static final String STARTPOLYGON
        = PrefuseLib.getStartField(POLYGON);
    /** The end polygon data field.
     * Not included in the VisualItem schema by default */
    public static final String ENDPOLYGON
        = PrefuseLib.getEndField(POLYGON);
    
    /** The x2 data field.
     * Not included in the VisualItem schema by default */
    public static final String X2
        = PrefuseLib.FIELD_PREFIX+"x2";
    /** The y2 data field.
     * Not included in the VisualItem schema by default */
    public static final String Y2
        = PrefuseLib.FIELD_PREFIX+"y2";
    /** The start x2 data field.
     * Not included in the VisualItem schema by default */
    public static final String STARTX2
        = PrefuseLib.getStartField(X2);
    /** The start y2 data field.
     * Not included in the VisualItem schema by default */
    public static final String STARTY2
        = PrefuseLib.getStartField(Y2);
    /** The end x2 data field.
     * Not included in the VisualItem schema by default */
    public static final String ENDX2
        = PrefuseLib.getEndField(X2);
    /** The end y2 data field.
     * Not included in the VisualItem schema by default */
    public static final String ENDY2
        = PrefuseLib.getEndField(Y2);
    
} // end of interface VisualItem