java.awt.geom.Rectangle2D Java Examples

/**
 * Draws a message to state that there is no data to plot.
 *
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 */
protected void drawNoDataMessage(Graphics2D g2, Rectangle2D area) {
    Shape savedClip = g2.getClip();
    g2.clip(area);
    String message = this.noDataMessage;
    if (message != null) {
        g2.setFont(this.noDataMessageFont);
        g2.setPaint(this.noDataMessagePaint);
        TextBlock block = TextUtilities.createTextBlock(
                this.noDataMessage, this.noDataMessageFont,
                this.noDataMessagePaint, 0.9f * (float) area.getWidth(),
                new G2TextMeasurer(g2));
        block.draw(g2, (float) area.getCenterX(),
                (float) area.getCenterY(), TextBlockAnchor.CENTER);
    }
    g2.setClip(savedClip);
}
 

/**
 * Draws the needle.
 *
 * @param g2  the graphics device.
 * @param plotArea  the plot area.
 * @param rotate  the rotation point.
 * @param angle  the angle.
 */
@Override
protected void drawNeedle(Graphics2D g2, Rectangle2D plotArea,
                          Point2D rotate, double angle) {

    Line2D shape = new Line2D.Double();

    double x = plotArea.getMinX() + (plotArea.getWidth() / 2);
    shape.setLine(x, plotArea.getMinY(), x, plotArea.getMaxY());

    Shape s = shape;

    if ((rotate != null) && (angle != 0)) {
        /// we have rotation
        getTransform().setToRotation(angle, rotate.getX(), rotate.getY());
        s = getTransform().createTransformedShape(s);
    }

    defaultDisplay(g2, s);

}
 

/**
 * Draws all the annotations for the specified layer.
 *
 * @param g2  the graphics device.
 * @param dataArea  the data area.
 * @param domainAxis  the domain axis.
 * @param rangeAxis  the range axis.
 * @param layer  the layer.
 * @param info  the plot rendering info.
 */
@Override
public void drawAnnotations(Graphics2D g2, Rectangle2D dataArea,
        ValueAxis domainAxis, ValueAxis rangeAxis, Layer layer,
        PlotRenderingInfo info) {

    Iterator iterator = null;
    if (layer.equals(Layer.FOREGROUND)) {
        iterator = this.foregroundAnnotations.iterator();
    }
    else if (layer.equals(Layer.BACKGROUND)) {
        iterator = this.backgroundAnnotations.iterator();
    }
    else {
        // should not get here
        throw new RuntimeException("Unknown layer.");
    }
    while (iterator.hasNext()) {
        XYAnnotation annotation = (XYAnnotation) iterator.next();
        int index = this.plot.getIndexOf(this);
        annotation.draw(g2, this.plot, dataArea, domainAxis, rangeAxis,
                index, info);
    }

}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
@Test
public void testNotification() {
    CombinedDomainCategoryPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    CategoryPlot subplot1 = (CategoryPlot) plot.getSubplots().get(0);
    NumberAxis yAxis = (NumberAxis) subplot1.getRangeAxis();
    yAxis.setAutoRangeIncludesZero(!yAxis.getAutoRangeIncludesZero());
    assertEquals(1, this.events.size());

    // a redraw should NOT trigger another change event
    BufferedImage image = new BufferedImage(200, 100,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    this.events.clear();
    chart.draw(g2, new Rectangle2D.Double(0.0, 0.0, 200.0, 100.0));
    assertTrue(this.events.isEmpty());
}
 

/**
 * Returns the maximum of the relevant dimension (height or width) of the 
 * subcategory labels.
 * 
 * @param g2  the graphics device.
 * @param edge  the edge.
 * 
 * @return The maximum dimension.
 */
private double getMaxDim(Graphics2D g2, RectangleEdge edge) {
    double result = 0.0;
    g2.setFont(this.subLabelFont);
    FontMetrics fm = g2.getFontMetrics();
    Iterator iterator = this.subCategories.iterator();
    while (iterator.hasNext()) {
        Comparable subcategory = (Comparable) iterator.next();
        String label = subcategory.toString();
        Rectangle2D bounds = TextUtilities.getTextBounds(label, g2, fm);
        double dim = 0.0;
        if (RectangleEdge.isLeftOrRight(edge)) {
            dim = bounds.getWidth();   
        }
        else {  // must be top or bottom
            dim = bounds.getHeight();
        }
        result = Math.max(result, dim);
    }   
    return result;
}
 

/**
 * Draws a line perpendicular to the range axis.
 *
 * @param g2  the graphics device.
 * @param plot  the plot.
 * @param axis  the value axis.
 * @param dataArea  the area for plotting data (not yet adjusted for any 3D
 *                  effect).
 * @param value  the value at which the grid line should be drawn.
 * @param paint  the paint (<code>null</code> not permitted).
 * @param stroke  the stroke (<code>null</code> not permitted).
 *
 * @see #drawRangeGridline
 *
 * @since 1.0.13
 */
public void drawRangeLine(Graphics2D g2, CategoryPlot plot, ValueAxis axis,
        Rectangle2D dataArea, double value, Paint paint, Stroke stroke) {

    Range range = axis.getRange();
    if (!range.contains(value)) {
        return;
    }

    PlotOrientation orientation = plot.getOrientation();
    Line2D line = null;
    double v = axis.valueToJava2D(value, dataArea, plot.getRangeAxisEdge());
    if (orientation == PlotOrientation.HORIZONTAL) {
        line = new Line2D.Double(v, dataArea.getMinY(), v,
                dataArea.getMaxY());
    }
    else if (orientation == PlotOrientation.VERTICAL) {
        line = new Line2D.Double(dataArea.getMinX(), v,
                dataArea.getMaxX(), v);
    }

    g2.setPaint(paint);
    g2.setStroke(stroke);
    g2.draw(line);

}
 

/**
 * Calculates the (x, y) coordinates for drawing a marker label.
 *
 * @param g2  the graphics device.
 * @param orientation  the plot orientation.
 * @param dataArea  the data area.
 * @param markerArea  the rectangle surrounding the marker.
 * @param markerOffset  the marker offset.
 * @param labelOffsetType  the label offset type.
 * @param anchor  the label anchor.
 *
 * @return The coordinates for drawing the marker label.
 */
protected Point2D calculateRangeMarkerTextAnchorPoint(Graphics2D g2,
                                  PlotOrientation orientation,
                                  Rectangle2D dataArea,
                                  Rectangle2D markerArea,
                                  RectangleInsets markerOffset,
                                  LengthAdjustmentType labelOffsetType,
                                  RectangleAnchor anchor) {

    Rectangle2D anchorRect = null;
    if (orientation == PlotOrientation.HORIZONTAL) {
        anchorRect = markerOffset.createAdjustedRectangle(markerArea,
                labelOffsetType, LengthAdjustmentType.CONTRACT);
    }
    else if (orientation == PlotOrientation.VERTICAL) {
        anchorRect = markerOffset.createAdjustedRectangle(markerArea,
                LengthAdjustmentType.CONTRACT, labelOffsetType);
    }
    return RectangleAnchor.coordinates(anchorRect, anchor);

}
 

/**
 * A check to ensure that an item that falls outside the plot's data area
 * does NOT generate an item entity.
 */
@Test
public void testNoDisplayedItem() {
    XYSeriesCollection dataset = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(10.0, 10.0);
    dataset.addSeries(s1);
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, PlotOrientation.VERTICAL, false, true, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setRenderer(new StandardXYItemRenderer());
    NumberAxis xAxis = (NumberAxis) plot.getDomainAxis();
    xAxis.setRange(0.0, 5.0);
    NumberAxis yAxis = (NumberAxis) plot.getRangeAxis();
    yAxis.setRange(0.0, 5.0);
    BufferedImage image = new BufferedImage(200 , 100,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    ChartRenderingInfo info = new ChartRenderingInfo();
    chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, info);
    g2.dispose();
    EntityCollection ec = info.getEntityCollection();
    assertFalse(TestUtilities.containsInstanceOf(ec.getEntities(),
            XYItemEntity.class));
}
 

/**
 * Check that only one chart change event is generated by a change to a
 * subplot.
 */
@Test
public void testNotification() {
    CombinedRangeCategoryPlot plot = createPlot();
    JFreeChart chart = new JFreeChart(plot);
    chart.addChangeListener(this);
    CategoryPlot subplot1 = (CategoryPlot) plot.getSubplots().get(0);
    NumberAxis yAxis = (NumberAxis) subplot1.getRangeAxis();
    yAxis.setAutoRangeIncludesZero(!yAxis.getAutoRangeIncludesZero());
    assertEquals(1, this.events.size());

    // a redraw should NOT trigger another change event
    BufferedImage image = new BufferedImage(200, 100,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    this.events.clear();
    chart.draw(g2, new Rectangle2D.Double(0.0, 0.0, 200.0, 100.0));
    assertTrue(this.events.isEmpty());
}
 

public MouseDraggedPaintableShape(Point start, Point end, double tx, double ty) {
	super(tx, ty);
	this.color = new Color(200, 0, 80, 147);
	this.stroke = new BasicStroke(15);

	int x1 = start.x;
	int y1 = start.y;
	int x2 = end.x;
	int y2 = end.y;

	int w = Math.abs(x2 - x1);
	int h = Math.abs(y2 - y1);

	if (w == 0) {
		x2 += 1;
	}
	if (h == 0) {
		y2 += 1;
	}

	Rectangle2D rect = new Rectangle2D.Double(x1, y1, w, h);
	rect.setFrameFromDiagonal(x1, y1, x2, y2);
	rebuildPaint(start, end);
	this.shape = rect;
}
 

/**
 * Draws the background image (if there is one) aligned within the
 * specified area.
 *
 * @param g2  the graphics device.
 * @param area  the area.
 *
 * @see #getBackgroundImage()
 * @see #getBackgroundImageAlignment()
 * @see #getBackgroundImageAlpha()
 */
public void drawBackgroundImage(Graphics2D g2, Rectangle2D area) {
    if (this.backgroundImage == null) {
        return;  // nothing to do
    }
    Composite savedComposite = g2.getComposite();
    g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
            this.backgroundImageAlpha));
    Rectangle2D dest = new Rectangle2D.Double(0.0, 0.0,
            this.backgroundImage.getWidth(null),
            this.backgroundImage.getHeight(null));
    Align.align(dest, area, this.backgroundImageAlignment);
    Shape savedClip = g2.getClip();
    g2.clip(area);
    g2.drawImage(this.backgroundImage, (int) dest.getX(),
            (int) dest.getY(), (int) dest.getWidth() + 1,
            (int) dest.getHeight() + 1, null);
    g2.setClip(savedClip);
    g2.setComposite(savedComposite);
}
 

/**
 * Draws a pie chart where the label generator returns null.
 */
public void testDrawWithNullLegendLabels() {
    DefaultPieDataset dataset = new DefaultPieDataset();
    dataset.setValue("L1", 12.0);
    dataset.setValue("L2", 11.0);
    JFreeChart chart = ChartFactory.createPieChart("Test", dataset, true, 
            false, false);
    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setLegendLabelGenerator(new NullLegendLabelGenerator());
    boolean success = false;
    try {
        BufferedImage image = new BufferedImage(200 , 100, 
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, null);
        g2.dispose();
        success = true;
    }
    catch (Exception e) {
      success = false;
    }
    assertTrue(success);
}
 

/**
 * Calculates the anchor point for a tick label.
 *
 * @param tick  the tick.
 * @param cursor  the cursor.
 * @param dataArea  the data area.
 * @param edge  the edge on which the axis is drawn.
 *
 * @return The x and y coordinates of the anchor point.
 */
protected float[] calculateAnchorPoint(ValueTick tick, double cursor,
        Rectangle2D dataArea, RectangleEdge edge) {

    RectangleInsets insets = getTickLabelInsets();
    float[] result = new float[2];
    if (edge == RectangleEdge.TOP) {
        result[0] = (float) valueToJava2D(tick.getValue(), dataArea, edge);
        result[1] = (float) (cursor - insets.getBottom() - 2.0);
    }
    else if (edge == RectangleEdge.BOTTOM) {
        result[0] = (float) valueToJava2D(tick.getValue(), dataArea, edge);
        result[1] = (float) (cursor + insets.getTop() + 2.0);
    }
    else if (edge == RectangleEdge.LEFT) {
        result[0] = (float) (cursor - insets.getLeft() - 2.0);
        result[1] = (float) valueToJava2D(tick.getValue(), dataArea, edge);
    }
    else if (edge == RectangleEdge.RIGHT) {
        result[0] = (float) (cursor + insets.getRight() + 2.0);
        result[1] = (float) valueToJava2D(tick.getValue(), dataArea, edge);
    }
    return result;
}
 

/**
 * Draws a shadow around the given rectangle.
 *
 * @param rect
 * 		the rectangle which should get a shadow
 * @param g2
 * 		the graphics context to draw the shadow on
 */
public static void drawShadow(final Rectangle2D rect, final Graphics2D g2) {
	Graphics2D g2S = (Graphics2D) g2.create();

	Rectangle2D shadow = new Rectangle2D.Double(rect.getX() + 5, rect.getY() + ProcessDrawer.HEADER_HEIGHT + 5,
			rect.getWidth(), rect.getHeight() - ProcessDrawer.HEADER_HEIGHT);
	GeneralPath bottom = new GeneralPath();
	bottom.moveTo(shadow.getX(), rect.getMaxY());
	bottom.lineTo(rect.getMaxX(), rect.getMaxY());
	bottom.lineTo(shadow.getMaxX(), shadow.getMaxY());
	bottom.lineTo(shadow.getMinX(), shadow.getMaxY());
	bottom.closePath();
	g2S.setPaint(new GradientPaint((float) rect.getX(), (float) rect.getMaxY(), Color.gray, (float) rect.getX(),
			(float) shadow.getMaxY(), TRANSPARENT_GRAY));
	g2S.fill(bottom);

	GeneralPath right = new GeneralPath();
	right.moveTo(rect.getMaxX(), shadow.getMinY());
	right.lineTo(shadow.getMaxX(), shadow.getMinY());
	right.lineTo(shadow.getMaxX(), shadow.getMaxY());
	right.lineTo(rect.getMaxX(), rect.getMaxY());
	right.closePath();
	g2S.setPaint(new GradientPaint((float) rect.getMaxX(), (float) shadow.getY(), Color.gray, (float) shadow.getMaxX(),
			(float) shadow.getY(), TRANSPARENT_GRAY));
	g2S.fill(right);

	g2S.dispose();
}
 

/**
 * Draws the chart with a null info object to make sure that no exceptions
 * are thrown (a problem that was occurring at one point).
 */
@Test
public void testDrawWithNullInfo() {
    try {
        BufferedImage image = new BufferedImage(200 , 100,
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        this.chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null,
                null);
        g2.dispose();
    }
    catch (Exception e) {
      fail("No exception should be triggered.");
    }
}
 

/**
 * Returns the bounding box of the transformed destination.  The
 * rectangle returned will be the actual bounding box of the
 * transformed points.  The coordinates of the upper-left corner
 * of the returned rectangle might not be (0, 0).
 *
 * @param src The <CODE>Raster</CODE> to be transformed.
 *
 * @return The <CODE>Rectangle2D</CODE> representing the destination's
 * bounding box.
 */
public final Rectangle2D getBounds2D (Raster src) {
    int w = src.getWidth();
    int h = src.getHeight();

    // Get the bounding box of the src and transform the corners
    float[] pts = {0, 0, w, 0, w, h, 0, h};
    xform.transform(pts, 0, pts, 0, 4);

    // Get the min, max of the dst
    float fmaxX = pts[0];
    float fmaxY = pts[1];
    float fminX = pts[0];
    float fminY = pts[1];
    for (int i=2; i < 8; i+=2) {
        if (pts[i] > fmaxX) {
            fmaxX = pts[i];
        }
        else if (pts[i] < fminX) {
            fminX = pts[i];
        }
        if (pts[i+1] > fmaxY) {
            fmaxY = pts[i+1];
        }
        else if (pts[i+1] < fminY) {
            fminY = pts[i+1];
        }
    }

    return new Rectangle2D.Float(fminX, fminY, fmaxX-fminX, fmaxY-fminY);
}
 

public static Rectangle2D expand(Rectangle2D rect, double x, double y) {
    Rectangle2D result = null;
    if (rect != null) {
        result = new Rectangle2D.Double();
        result.setRect(rect);
        x /= 2.0f;
        y /= 2.0f;
        result.add(rect.getMinX() - x, rect.getMinY() - y);
        result.add(rect.getMaxX() + x, rect.getMaxY() + y);
    }
    return result;
}
 

private void draw() { 
    double width = getWidth(); 
    double height = getHeight();
    getGraphicsContext2D().clearRect(0, 0, width, height);
    this.chart.draw(this.g2, new Rectangle2D.Double(0, 0, width, 
            height));
}
 

/**
 * Returns the bounds of the selected figures.
 */
protected Rectangle2D.Double getSelectionBounds() {
  Rectangle2D.Double bounds = null;

  for (Figure f : getView().getSelectedFigures()) {
    if (bounds == null) {
      bounds = f.getBounds();
    }
    else {
      bounds.add(f.getBounds());
    }
  }

  return bounds;
}
 

public Shape modelToView(GlyphView v, int pos, Position.Bias bias,
                         Shape a) throws BadLocationException {
    int offs = pos - v.getStartOffset();
    Rectangle2D alloc = a.getBounds2D();
    TextHitInfo hit = (bias == Position.Bias.Forward) ?
        TextHitInfo.afterOffset(offs) : TextHitInfo.beforeOffset(offs);
    float[] locs = layout.getCaretInfo(hit);

    // vertical at the baseline, should use slope and check if glyphs
    // are being rendered vertically.
    Rectangle2D rect = new Rectangle2D.Float();
    rect.setRect(alloc.getX() + locs[0], alloc.getY(), 1, alloc.getHeight());
    return rect;
}
 

/**
   Get the world bounds.
   @return A Rectangle2D describing the bounds of the world.
*/
public Rectangle2D getBounds() {
    if (!indexed) {
        index();
    }
    return new Rectangle2D.Double(minX, minY, maxX - minX, maxY - minY);
}
 

/**
 * Fills an arc on the dial between the given values.
 *
 * @param g2  the graphics device.
 * @param area  the plot area.
 * @param minValue  the minimum data value.
 * @param maxValue  the maximum data value.
 * @param paint  the background paint (<code>null</code> not permitted).
 * @param dial  a flag that indicates whether the arc represents the whole
 *              dial.
 */
protected void fillArc(Graphics2D g2, Rectangle2D area,
        double minValue, double maxValue, Paint paint, boolean dial) {

    ParamChecks.nullNotPermitted(paint, "paint");
    double startAngle = valueToAngle(maxValue);
    double endAngle = valueToAngle(minValue);
    double extent = endAngle - startAngle;

    double x = area.getX();
    double y = area.getY();
    double w = area.getWidth();
    double h = area.getHeight();
    int joinType = Arc2D.OPEN;
    if (this.shape == DialShape.PIE) {
        joinType = Arc2D.PIE;
    }
    else if (this.shape == DialShape.CHORD) {
        if (dial && this.meterAngle > 180) {
            joinType = Arc2D.CHORD;
        }
        else {
            joinType = Arc2D.PIE;
        }
    }
    else if (this.shape == DialShape.CIRCLE) {
        joinType = Arc2D.PIE;
        if (dial) {
            extent = 360;
        }
    }
    else {
        throw new IllegalStateException("DialShape not recognised.");
    }

    g2.setPaint(paint);
    Arc2D.Double arc = new Arc2D.Double(x, y, w, h, startAngle, extent,
            joinType);
    g2.fill(arc);
}
 

/**
 * Returns a rectangle that encloses the axis label.  This is typically
 * used for layout purposes (it gives the maximum dimensions of the label).
 *
 * @param g2  the graphics device.
 * @param edge  the edge of the plot area along which the axis is measuring.
 *
 * @return The enclosing rectangle.
 */
protected Rectangle2D getLabelEnclosure(Graphics2D g2, RectangleEdge edge) {
    Rectangle2D result = new Rectangle2D.Double();
    Rectangle2D bounds = null;
    if (this.attributedLabel != null) {
        TextLayout layout = new TextLayout(
                this.attributedLabel.getIterator(), 
                g2.getFontRenderContext());
        bounds = layout.getBounds();
    } else {
        String axisLabel = getLabel();
        if (axisLabel != null && !axisLabel.equals("")) {
            FontMetrics fm = g2.getFontMetrics(getLabelFont());
            bounds = TextUtilities.getTextBounds(axisLabel, g2, fm);
        }
    }
    if (bounds != null) {
        RectangleInsets insets = getLabelInsets();
        bounds = insets.createOutsetRectangle(bounds);
        double angle = getLabelAngle();
        if (edge == RectangleEdge.LEFT || edge == RectangleEdge.RIGHT) {
            angle = angle - Math.PI / 2.0;
        }
        double x = bounds.getCenterX();
        double y = bounds.getCenterY();
        AffineTransform transformer
            = AffineTransform.getRotateInstance(angle, x, y);
        Shape labelBounds = transformer.createTransformedShape(bounds);
        result = labelBounds.getBounds2D();
    }
    return result;
}
 

Shape intersectRectShape(Rectangle2D r, Shape s,
                         boolean keep1, boolean keep2) {
    if (s instanceof Rectangle2D) {
        Rectangle2D r2 = (Rectangle2D) s;
        Rectangle2D outrect;
        if (!keep1) {
            outrect = r;
        } else if (!keep2) {
            outrect = r2;
        } else {
            outrect = new Rectangle2D.Float();
        }
        double x1 = Math.max(r.getX(), r2.getX());
        double x2 = Math.min(r.getX()  + r.getWidth(),
                             r2.getX() + r2.getWidth());
        double y1 = Math.max(r.getY(), r2.getY());
        double y2 = Math.min(r.getY()  + r.getHeight(),
                             r2.getY() + r2.getHeight());

        if (((x2 - x1) < 0) || ((y2 - y1) < 0))
            // Width or height is negative. No intersection.
            outrect.setFrameFromDiagonal(0, 0, 0, 0);
        else
            outrect.setFrameFromDiagonal(x1, y1, x2, y2);
        return outrect;
    }
    if (r.contains(s.getBounds2D())) {
        if (keep2) {
            s = cloneShape(s);
        }
        return s;
    }
    return intersectByArea(r, s, keep1, keep2);
}
 

@Override
public void paintObject(Graphics2D g2, OOState s, ObjectInstance ob, float cWidth, float cHeight) {
	
	int type = (Integer)ob.get(VAR_TYPE);
	int multiplier = type / this.baseColors.size();
	int colIndex = type % this.baseColors.size();
	
	Color col = this.baseColors.get(colIndex);
	for(int i = 0; i < multiplier; i++){
		col = col.darker();
	}
	
	//set the color of the object
	g2.setColor(col);
	
	float domainXScale = this.dwidth;
	float domainYScale = this.dheight;
	
	//determine then normalized width
	float width = (1.0f / domainXScale) * cWidth;
	float height = (1.0f / domainYScale) * cHeight;

	float rx = (Integer)ob.get(VAR_X)*width;
	float ry = cHeight - height - (Integer)ob.get(VAR_Y)*height;

	
	g2.fill(new Rectangle2D.Float(rx, ry, width, height));
	
}
 

/**
 * Augments the input image with a labeled rectangle (e.g. bounding box) with coordinates: (x1, y1, x2, y2).
 *
 * @param image Input image to be augmented with labeled rectangle.
 * @param cid Unique id used to select the color of the rectangle. Used only if the colorAgnostic is set to false.
 * @param title rectangle title
 * @param x1 top left corner for the bounding box
 * @param y1 top left corner for the bounding box
 * @param x2 bottom right corner for the bounding box
 * @param y2 bottom right corner for the bounding box
 * @param colorAgnostic If set to false the cid is used to select the bounding box color. Uses the
 *                      AGNOSTIC_COLOR otherwise.
 */
public static void drawBoundingBox(BufferedImage image, int cid, String title, int x1, int y1, int x2, int y2,
		boolean colorAgnostic) {

	Graphics2D g = image.createGraphics();
	g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

	Color labelColor = colorAgnostic ? AGNOSTIC_COLOR : GraphicsUtils.getClassColor(cid);
	g.setColor(labelColor);

	g.setFont(DEFAULT_FONT);
	FontMetrics fontMetrics = g.getFontMetrics();

	Stroke oldStroke = g.getStroke();
	g.setStroke(new BasicStroke(LINE_THICKNESS));
	g.drawRect(x1, y1, (x2 - x1), (y2 - y1));
	g.setStroke(oldStroke);

	Rectangle2D rect = fontMetrics.getStringBounds(title, g);

	g.setColor(labelColor);
	g.fillRect(x1, y1 - fontMetrics.getAscent(),
			(int) rect.getWidth() + 2 * TITLE_OFFSET, (int) rect.getHeight());

	g.setColor(getTextColor(labelColor));
	g.drawString(title, x1 + TITLE_OFFSET, y1);
}
 

private Rectangle2D decodeRect1() {
    rect.setRect(decodeX(0.0f), //x
            decodeY(1.0f), //y
            decodeX(0.0f) - decodeX(0.0f), //width
            decodeY(1.0f) - decodeY(1.0f)); //height
    return rect;
}
 

/**
 * Creates a rectangle that is aligned to the frame.
 *
 * @param dimensions  the dimensions for the rectangle.
 * @param frame  the frame to align to.
 * @param hAlign  the horizontal alignment.
 * @param vAlign  the vertical alignment.
 *
 * @return A rectangle.
 */
private Rectangle2D createAlignedRectangle2D(Size2D dimensions,
        Rectangle2D frame, HorizontalAlignment hAlign,
        VerticalAlignment vAlign) {
    double x = Double.NaN;
    double y = Double.NaN;
    if (hAlign == HorizontalAlignment.LEFT) {
        x = frame.getX();
    }
    else if (hAlign == HorizontalAlignment.CENTER) {
        x = frame.getCenterX() - (dimensions.width / 2.0);
    }
    else if (hAlign == HorizontalAlignment.RIGHT) {
        x = frame.getMaxX() - dimensions.width;
    }
    if (vAlign == VerticalAlignment.TOP) {
        y = frame.getY();
    }
    else if (vAlign == VerticalAlignment.CENTER) {
        y = frame.getCenterY() - (dimensions.height / 2.0);
    }
    else if (vAlign == VerticalAlignment.BOTTOM) {
        y = frame.getMaxY() - dimensions.height;
    }

    return new Rectangle2D.Double(x, y, dimensions.width,
            dimensions.height);
}
 

@Override
public Rectangle2D modelToView2D(JTextComponent a, int b, Position.Bias c) throws BadLocationException {
    Rectangle2D returnValue =
        ((TextUI) (uis.elementAt(0))).modelToView2D(a,b,c);
    for (int i = 1; i < uis.size(); i++) {
        ((TextUI) (uis.elementAt(i))).modelToView2D(a,b,c);
    }
    return returnValue;
}
 

/**
 * Calculates the positions of the tick labels for the axis, storing the
 * results in the tick label list (ready for drawing).
 *
 * @param g2  the graphics device.
 * @param state  the axis state.
 * @param dataArea  the area in which the data should be drawn.
 * @param edge  the location of the axis.
 *
 * @return A list of ticks.
 */
@Override
public List refreshTicks(Graphics2D g2, AxisState state,
        Rectangle2D dataArea, RectangleEdge edge) {
    List ticks = null;
    if (RectangleEdge.isTopOrBottom(edge)) {
        ticks = refreshTicksHorizontal(g2, dataArea, edge);
    } else if (RectangleEdge.isLeftOrRight(edge)) {
        ticks = refreshTicksVertical(g2, dataArea, edge);
    }
    return ticks;
}