marker.java

java图形利器

     * 
     * @see #setLabel(String)
     */
    public String getLabel() {
        return this.label;
    }

    /**
     * Sets the label (if <code>null</code> no label is displayed) and sends a
     * {@link MarkerChangeEvent} to all registered listeners.
     *
     * @param label  the label (<code>null</code> permitted).
     * 
     * @see #getLabel()
     */
    public void setLabel(String label) {
        this.label = label;
        notifyListeners(new MarkerChangeEvent(this));
    }

    /**
     * Returns the label font.
     *
     * @return The label font (never <code>null</code>).
     * 
     * @see #setLabelFont(Font)
     */
    public Font getLabelFont() {
        return this.labelFont;
    }

    /**
     * Sets the label font and sends a {@link MarkerChangeEvent} to all 
     * registered listeners.
     *
     * @param font  the font (<code>null</code> not permitted).
     * 
     * @see #getLabelFont()
     */
    public void setLabelFont(Font font) {
        if (font == null) {
            throw new IllegalArgumentException("Null 'font' argument.");
        }
        this.labelFont = font;
        notifyListeners(new MarkerChangeEvent(this));
    }

    /**
     * Returns the label paint.
     *
     * @return The label paint (never </code>null</code>).
     * 
     * @see #setLabelPaint(Paint)
     */
    public Paint getLabelPaint() {
        return this.labelPaint;
    }

    /**
     * Sets the label paint and sends a {@link MarkerChangeEvent} to all
     * registered listeners.
     *
     * @param paint  the paint (<code>null</code> not permitted).
     * 
     * @see #getLabelPaint()
     */
    public void setLabelPaint(Paint paint) {
        if (paint == null) {
            throw new IllegalArgumentException("Null 'paint' argument.");
        }
        this.labelPaint = paint;
        notifyListeners(new MarkerChangeEvent(this));
    }

    /**
     * Returns the label anchor.  This defines the position of the label 
     * anchor, relative to the bounds of the marker.
     *
     * @return The label anchor (never <code>null</code>).
     * 
     * @see #setLabelAnchor(RectangleAnchor)
     */
    public RectangleAnchor getLabelAnchor() {
        return this.labelAnchor;
    }

    /**
     * Sets the label anchor and sends a {@link MarkerChangeEvent} to all 
     * registered listeners.  The anchor defines the position of the label 
     * anchor, relative to the bounds of the marker.
     *
     * @param anchor  the anchor (<code>null</code> not permitted).
     * 
     * @see #getLabelAnchor()
     */
    public void setLabelAnchor(RectangleAnchor anchor) {
        if (anchor == null) {
            throw new IllegalArgumentException("Null 'anchor' argument.");
        }
        this.labelAnchor = anchor;
        notifyListeners(new MarkerChangeEvent(this));
    }

    /**
     * Returns the label offset.
     * 
     * @return The label offset (never <code>null</code>).
     * 
     * @see #setLabelOffset(RectangleInsets)
     */
    public RectangleInsets getLabelOffset() {
        return this.labelOffset;
    }
    
    /**
     * Sets the label offset and sends a {@link MarkerChangeEvent} to all
     * registered listeners.
     * 
     * @param offset  the label offset (<code>null</code> not permitted).
     * 
     * @see #getLabelOffset()
     */
    public void setLabelOffset(RectangleInsets offset) {
        if (offset == null) {
            throw new IllegalArgumentException("Null 'offset' argument.");
        }
        this.labelOffset = offset;
        notifyListeners(new MarkerChangeEvent(this));
    }
    
    /**
     * Returns the label offset type.
     * 
     * @return The type (never <code>null</code>).
     * 
     * @see #setLabelOffsetType(LengthAdjustmentType)
     */
    public LengthAdjustmentType getLabelOffsetType() {
        return this.labelOffsetType;   
    }
    
    /**
     * Sets the label offset type and sends a {@link MarkerChangeEvent} to all
     * registered listeners.
     * 
     * @param adj  the type (<code>null</code> not permitted).
     * 
     * @see #getLabelOffsetType()
     */
    public void setLabelOffsetType(LengthAdjustmentType adj) {
        if (adj == null) {
            throw new IllegalArgumentException("Null 'adj' argument.");
        }
        this.labelOffsetType = adj;    
        notifyListeners(new MarkerChangeEvent(this));
    }
        
    /**
     * Returns the label text anchor.
     * 
     * @return The label text anchor (never <code>null</code>).
     * 
     * @see #setLabelTextAnchor(TextAnchor)
     */
    public TextAnchor getLabelTextAnchor() {
        return this.labelTextAnchor;
    }
    
    /**
     * Sets the label text anchor and sends a {@link MarkerChangeEvent} to 
     * all registered listeners.
     * 
     * @param anchor  the label text anchor (<code>null</code> not permitted).
     * 
     * @see #getLabelTextAnchor()
     */
    public void setLabelTextAnchor(TextAnchor anchor) {
        if (anchor == null) { 
            throw new IllegalArgumentException("Null 'anchor' argument.");
        }
        this.labelTextAnchor = anchor;
        notifyListeners(new MarkerChangeEvent(this));
    }
    
    /**
     * Registers an object for notification of changes to the marker.
     *
     * @param listener  the object to be registered.
     * 
     * @since 1.0.3
     */
    public void addChangeListener(MarkerChangeListener listener) {
        this.listenerList.add(MarkerChangeListener.class, listener);
    }

    /**
     * Unregisters an object for notification of changes to the marker.
     *
     * @param listener  the object to be unregistered.
     * 
     * @since 1.0.3
     */
    public void removeChangeListener(MarkerChangeListener listener) {
        this.listenerList.remove(MarkerChangeListener.class, listener);
    }

    /**
     * Notifies all registered listeners that the marker has been modified.
     *
     * @param event  information about the change event.
     * 
     * @since 1.0.3
     */
    public void notifyListeners(MarkerChangeEvent event) {

        Object[] listeners = this.listenerList.getListenerList();
        for (int i = listeners.length - 2; i >= 0; i -= 2) {
            if (listeners[i] == MarkerChangeListener.class) {
                ((MarkerChangeListener) listeners[i + 1]).markerChanged(event);
            }
        }

    }

    /**
     * Returns an array containing all the listeners of the specified type.
     * 
     * @param listenerType  the listener type.
     * 
     * @return The array of listeners.
     * 
     * @since 1.0.3
     */
    public EventListener[] getListeners(Class listenerType) {
        return this.listenerList.getListeners(listenerType);    
    }
    
    /**
     * Tests the marker for equality with an arbitrary object.
     * 
     * @param obj  the object (<code>null</code> permitted).
     * 
     * @return A boolean.
     */
    public boolean equals(Object obj) {
        if (obj == this) {
            return true;
        }
        if (!(obj instanceof Marker)) {
            return false;
        }
        Marker that = (Marker) obj;
        if (!PaintUtilities.equal(this.paint, that.paint)) {
            return false;   
        }
        if (!ObjectUtilities.equal(this.stroke, that.stroke)) {
            return false;
        }
        if (!PaintUtilities.equal(this.outlinePaint, that.outlinePaint)) {
            return false;   
        }
        if (!ObjectUtilities.equal(this.outlineStroke, that.outlineStroke)) {
            return false;
        }
        if (this.alpha != that.alpha) {
            return false;
        }
        if (!ObjectUtilities.equal(this.label, that.label)) {
            return false;
        }
        if (!ObjectUtilities.equal(this.labelFont, that.labelFont)) {
            return false;
        }
        if (!PaintUtilities.equal(this.labelPaint, that.labelPaint)) {
            return false;
        }
        if (this.labelAnchor != that.labelAnchor) {
            return false;
        }
        if (this.labelTextAnchor != that.labelTextAnchor) {
            return false;   
        }
        if (!ObjectUtilities.equal(this.labelOffset, that.labelOffset)) {
            return false;
        }
        if (!this.labelOffsetType.equals(that.labelOffsetType)) {
            return false;
        }
        return true;
    }
    
    /**
     * Creates a clone of the marker.
     * 
     * @return A clone.
     * 
     * @throws CloneNotSupportedException never.
     */
    public Object clone() throws CloneNotSupportedException {
        return super.clone();
    }
    
    /**
     * Provides serialization support.
     *
     * @param stream  the output stream.
     *
     * @throws IOException  if there is an I/O error.
     */
    private void writeObject(ObjectOutputStream stream) throws IOException {
        stream.defaultWriteObject();
        SerialUtilities.writePaint(this.paint, stream);
        SerialUtilities.writeStroke(this.stroke, stream);
        SerialUtilities.writePaint(this.outlinePaint, stream);
        SerialUtilities.writeStroke(this.outlineStroke, stream);
        SerialUtilities.writePaint(this.labelPaint, stream);
    }

    /**
     * Provides serialization support.
     *
     * @param stream  the input stream.
     *
     * @throws IOException  if there is an I/O error.
     * @throws ClassNotFoundException  if there is a classpath problem.
     */
    private void readObject(ObjectInputStream stream) 
        throws IOException, ClassNotFoundException {
        stream.defaultReadObject();
        this.paint = SerialUtilities.readPaint(stream);
        this.stroke = SerialUtilities.readStroke(stream);
        this.outlinePaint = SerialUtilities.readPaint(stream);
        this.outlineStroke = SerialUtilities.readStroke(stream);
        this.labelPaint = SerialUtilities.readPaint(stream);
    }

}