/**
* Draws a grid line against 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.
*/
public void drawRangeGridline(
Graphics2D g2, CategoryPlot plot, ValueAxis axis, Rectangle2D dataArea, double value) {
Range range = axis.getRange();
if (!range.contains(value)) {
return;
}
PlotOrientation orientation = plot.getOrientation();
double v = axis.valueToJava2D(value, dataArea, plot.getRangeAxisEdge());
Line2D line = null;
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);
}
Paint paint = plot.getRangeGridlinePaint();
if (paint == null) {
paint = CategoryPlot.DEFAULT_GRIDLINE_PAINT;
}
g2.setPaint(paint);
Stroke stroke = plot.getRangeGridlineStroke();
if (stroke == null) {
stroke = CategoryPlot.DEFAULT_GRIDLINE_STROKE;
}
g2.setStroke(stroke);
g2.draw(line);
}
/**
* Converts a coordinate from Java 2D space to data space.
*
* @param java2DValue the coordinate in Java2D space.
* @param dataArea the data area.
* @param edge the edge.
* @return The data value.
*/
public double java2DToValue(double java2DValue, Rectangle2D dataArea, RectangleEdge edge) {
Range range = getRange();
double vmax = range.getUpperBound();
double vp = getCycleBound();
double jmin = 0.0;
double jmax = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
jmin = dataArea.getMinX();
jmax = dataArea.getMaxX();
} else if (RectangleEdge.isLeftOrRight(edge)) {
jmin = dataArea.getMaxY();
jmax = dataArea.getMinY();
}
if (isInverted()) {
double jbreak = jmax - (vmax - vp) * (jmax - jmin) / this.period;
if (java2DValue >= jbreak) {
return vp + (jmax - java2DValue) * this.period / (jmax - jmin);
} else {
return vp - (java2DValue - jmin) * this.period / (jmax - jmin);
}
} else {
double jbreak = (vmax - vp) * (jmax - jmin) / this.period + jmin;
if (java2DValue <= jbreak) {
return vp + (java2DValue - jmin) * this.period / (jmax - jmin);
} else {
return vp - (jmax - java2DValue) * this.period / (jmax - jmin);
}
}
}
/**
* Returns the content size for the title. This will reflect the fact that a text title positioned
* on the left or right of a chart will be rotated 90 degrees.
*
* @param g2 the graphics device.
* @param widthRange the width range.
* @param heightRange the height range.
* @return The content size.
*/
protected Size2D arrangeRR(Graphics2D g2, Range widthRange, Range heightRange) {
RectangleEdge position = getPosition();
if (position == RectangleEdge.TOP || position == RectangleEdge.BOTTOM) {
float maxWidth = (float) widthRange.getUpperBound();
// determine the space required for the axis
AxisSpace space =
this.axis.reserveSpace(
g2, null, new Rectangle2D.Double(0, 0, maxWidth, 100), RectangleEdge.BOTTOM, null);
return new Size2D(
maxWidth, this.stripWidth + this.axisOffset + space.getTop() + space.getBottom());
} else if (position == RectangleEdge.LEFT || position == RectangleEdge.RIGHT) {
float maxHeight = (float) heightRange.getUpperBound();
AxisSpace space =
this.axis.reserveSpace(
g2, null, new Rectangle2D.Double(0, 0, 100, maxHeight), RectangleEdge.RIGHT, null);
return new Size2D(
this.stripWidth + this.axisOffset + space.getLeft() + space.getRight(), maxHeight);
} else {
throw new RuntimeException("Unrecognised position.");
}
}
/**
* Converts a coordinate in Java2D space to the corresponding data value, assuming that the axis
* runs along one edge of the specified plotArea.
*
* @param java2DValue the coordinate in Java2D space.
* @param plotArea the area in which the data is plotted.
* @param edge the axis location.
* @return The data value.
*/
@Override
public double java2DToValue(double java2DValue, Rectangle2D plotArea, RectangleEdge edge) {
Range range = getRange();
double axisMin = switchedLog10(range.getLowerBound());
double axisMax = switchedLog10(range.getUpperBound());
double plotMin = 0.0;
double plotMax = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
plotMin = plotArea.getX();
plotMax = plotArea.getMaxX();
} else if (RectangleEdge.isLeftOrRight(edge)) {
plotMin = plotArea.getMaxY();
plotMax = plotArea.getMinY();
}
if (isInverted()) {
return switchedPow10(
axisMax - ((java2DValue - plotMin) / (plotMax - plotMin)) * (axisMax - axisMin));
} else {
return switchedPow10(
axisMin + ((java2DValue - plotMin) / (plotMax - plotMin)) * (axisMax - axisMin));
}
}
/**
* Scales the range by the specified factor.
*
* @param base the base range (<code>null</code> not permitted).
* @param factor the scaling factor (must be non-negative).
* @return A new range.
* @since 1.0.9
*/
public static Range scale(Range base, double factor) {
ParamChecks.nullNotPermitted(base, "base");
if (factor < 0) {
throw new IllegalArgumentException("Negative 'factor' argument.");
}
return new Range(base.getLowerBound() * factor, base.getUpperBound() * factor);
}
/** Rescales the axis to ensure that all data is visible. */
@Override
protected void autoAdjustRange() {
Plot plot = getPlot();
if (plot == null) {
return; // no plot, no data
}
if (plot instanceof ValueAxisPlot) {
ValueAxisPlot vap = (ValueAxisPlot) plot;
Range r = vap.getDataRange(this);
if (r == null) {
r = getDefaultAutoRange();
}
long upper = Math.round(r.getUpperBound());
long lower = Math.round(r.getLowerBound());
this.first =
createInstance(
this.autoRangeTimePeriodClass, new Date(lower), this.timeZone, this.locale);
this.last =
createInstance(
this.autoRangeTimePeriodClass, new Date(upper), this.timeZone, this.locale);
setRange(r, false, false);
}
}
/**
* Converts a data value to a coordinate in Java2D space, assuming that the axis runs along one
* edge of the specified plotArea. Note that it is possible for the coordinate to fall outside the
* plotArea.
*
* @param value the data value.
* @param plotArea the area for plotting the data.
* @param edge the axis location.
* @return The Java2D coordinate.
*/
@Override
public double valueToJava2D(double value, Rectangle2D plotArea, RectangleEdge edge) {
Range range = getRange();
double axisMin = switchedLog10(range.getLowerBound());
double axisMax = switchedLog10(range.getUpperBound());
double min = 0.0;
double max = 0.0;
if (RectangleEdge.isTopOrBottom(edge)) {
min = plotArea.getMinX();
max = plotArea.getMaxX();
} else if (RectangleEdge.isLeftOrRight(edge)) {
min = plotArea.getMaxY();
max = plotArea.getMinY();
}
value = switchedLog10(value);
if (isInverted()) {
return max - (((value - axisMin) / (axisMax - axisMin)) * (max - min));
} else {
return min + (((value - axisMin) / (axisMax - axisMin)) * (max - min));
}
}
/**
* Sets a new axis range. The period is extended to fit the range size, if necessary.
*
* @param range the range.
* @param turnOffAutoRange switch off the auto range.
* @param notify notify?
* @see org.jfree.chart.axis.ValueAxis#setRange(Range, boolean, boolean)
*/
public void setRange(Range range, boolean turnOffAutoRange, boolean notify) {
double size = range.getUpperBound() - range.getLowerBound();
if (size > this.period) {
this.period = size;
}
super.setRange(range, turnOffAutoRange, notify);
}
protected int calculateVisibleTickCount() {
double unit = getTickUnit().getSize();
Range range = getRange();
return (int)
((Math.floor(range.getUpperBound() / unit) - Math.ceil(range.getLowerBound() / unit))
+ NormalizedMatrixSeries.DEFAULT_SCALE_FACTOR);
}
/** Replaces the dataset and checks that the data range is as expected. */
public void testReplaceDataset() {
// create a dataset...
Number[][] data =
new Integer[][] {
{new Integer(-30), new Integer(-20)},
{new Integer(-10), new Integer(10)},
{new Integer(20), new Integer(30)}
};
CategoryDataset newData = DatasetUtilities.createCategoryDataset("S", "C", data);
LocalListener l = new LocalListener();
this.chart.addChangeListener(l);
this.chart.getCategoryPlot().setDataset(newData);
assertEquals(true, l.flag);
ValueAxis axis = this.chart.getCategoryPlot().getRangeAxis();
Range range = axis.getRange();
assertTrue(
"Expecting the lower bound of the range to be around -30: " + range.getLowerBound(),
range.getLowerBound() <= -30);
assertTrue(
"Expecting the upper bound of the range to be around 30: " + range.getUpperBound(),
range.getUpperBound() >= 30);
}
public void stateChanged(ChangeEvent changeevent) {
int i = slider.getValue();
XYPlot xyplot = (XYPlot) chart.getPlot();
ValueAxis valueaxis = xyplot.getDomainAxis();
Range range = valueaxis.getRange();
double d = valueaxis.getLowerBound() + ((double) i / 100D) * range.getLength();
xyplot.setDomainCrosshairValue(d);
}
/**
* Handles a state change event.
*
* @param event the event.
*/
public void stateChanged(ChangeEvent event) {
int value = this.slider.getValue();
XYPlot plot = this.chart.getXYPlot();
ValueAxis domainAxis = plot.getDomainAxis();
Range range = domainAxis.getRange();
double c = domainAxis.getLowerBound() + (value / 100.0) * range.getLength();
plot.setDomainCrosshairValue(c);
}
/**
* Arranges the content for this title assuming a range constraint for the width and no bounds on
* the height, and returns the required size. This will reflect the fact that a text title
* positioned on the left or right of a chart will be rotated by 90 degrees.
*
* @param g2 the graphics target.
* @param widthRange the range for the width.
* @return The content size.
* @since 1.0.9
*/
protected Size2D arrangeRN(Graphics2D g2, Range widthRange) {
Size2D s = arrangeNN(g2);
if (widthRange.contains(s.getWidth())) {
return s;
}
double ww = widthRange.constrain(s.getWidth());
return arrangeFN(g2, ww);
}
/**
* Returns the maximum x-value in the dataset.
*
* @param includeInterval a flag that determines whether or not the x-interval is taken into
* account.
* @return The maximum value.
*/
public double getDomainUpperBound(boolean includeInterval) {
double result = Double.NaN;
Range r = getDomainBounds(includeInterval);
if (r != null) {
result = r.getUpperBound();
}
return result;
}
/**
* Shifts the range by the specified amount.
*
* @param base the base range (<code>null</code> not permitted).
* @param delta the shift amount.
* @param allowZeroCrossing a flag that determines whether or not the bounds of the range are
* allowed to cross zero after adjustment.
* @return A new range.
*/
public static Range shift(Range base, double delta, boolean allowZeroCrossing) {
ParamChecks.nullNotPermitted(base, "base");
if (allowZeroCrossing) {
return new Range(base.getLowerBound() + delta, base.getUpperBound() + delta);
} else {
return new Range(
shiftWithNoZeroCrossing(base.getLowerBound(), delta),
shiftWithNoZeroCrossing(base.getUpperBound(), delta));
}
}
/**
* Returns the lower and upper bounds (range) of the x-values in the specified dataset.
*
* @param dataset the dataset (<code>null</code> permitted).
* @return The range (<code>null</code> if the dataset is <code>null</code> or empty).
* @see #findRangeBounds(XYDataset)
*/
public Range findDomainBounds(XYDataset dataset) {
if (dataset == null) {
return null;
}
Range r = DatasetUtilities.findDomainBounds(dataset, false);
if (r == null) {
return null;
}
return new Range(
r.getLowerBound() + this.xOffset, r.getUpperBound() + this.blockWidth + this.xOffset);
}
/**
* Combines two ranges. This method has a special handling for Double.NaN.
*
* @param range1 the first range (<code>null</code> permitted).
* @param range2 the second range (<code>null</code> permitted).
* @return A new range (possibly <code>null</code>).
* @since 1.0.15
*/
public static Range combineIgnoringNaN(Range range1, Range range2) {
if (range1 == null) {
return range2;
}
if (range2 == null) {
return range1;
}
double l = min(range1.getLowerBound(), range2.getLowerBound());
double u = max(range1.getUpperBound(), range2.getUpperBound());
return new Range(l, u);
}
/**
* Returns the range of values the renderer requires to display all the items from the specified
* dataset.
*
* @param dataset the dataset (<code>null</code> permitted).
* @return The range (<code>null</code> if the dataset is <code>null</code> or empty).
*/
public Range findRangeBounds(XYDataset dataset) {
if (dataset == null) {
return null;
}
Range r = DatasetUtilities.findRangeBounds(dataset, false);
if (r == null) {
return null;
}
double offset = 0; // TODO getSeriesShape(n).getBounds().height / 2;
return new Range(r.getLowerBound() + offset, r.getUpperBound() + offset);
}
/**
* Creates a new range by adding margins to an existing range.
*
* @param range the range (<code>null</code> not permitted).
* @param lowerMargin the lower margin (expressed as a percentage of the range length).
* @param upperMargin the upper margin (expressed as a percentage of the range length).
* @return The expanded range.
*/
public static Range expand(Range range, double lowerMargin, double upperMargin) {
ParamChecks.nullNotPermitted(range, "range");
double length = range.getLength();
double lower = range.getLowerBound() - length * lowerMargin;
double upper = range.getUpperBound() + length * upperMargin;
if (lower > upper) {
lower = lower / 2.0 + upper / 2.0;
upper = lower;
}
return new Range(lower, upper);
}
/** A test for bug 3072674. */
@Test
public void test3072674() {
DefaultStatisticalCategoryDataset dataset = new DefaultStatisticalCategoryDataset();
dataset.add(1.0, Double.NaN, "R1", "C1");
assertEquals(1.0, dataset.getRangeLowerBound(true), EPSILON);
assertEquals(1.0, dataset.getRangeUpperBound(true), EPSILON);
Range r = dataset.getRangeBounds(true);
assertEquals(1.0, r.getLowerBound(), EPSILON);
assertEquals(1.0, r.getUpperBound(), EPSILON);
}
/**
* Sets the range for the axis, if requested, sends an {@link AxisChangeEvent} to all registered
* listeners. As a side-effect, the auto-range flag is set to <code>false</code> (optional).
*
* @param range the range (<code>null</code> not permitted).
* @param turnOffAutoRange a flag that controls whether or not the auto range is turned off.
* @param notify a flag that controls whether or not listeners are notified.
*/
public void setRange(Range range, boolean turnOffAutoRange, boolean notify) {
long upper = Math.round(range.getUpperBound());
long lower = Math.round(range.getLowerBound());
this.first =
createInstance(this.autoRangeTimePeriodClass, new Date(lower), this.timeZone, this.locale);
this.last =
createInstance(this.autoRangeTimePeriodClass, new Date(upper), this.timeZone, this.locale);
super.setRange(
new Range(this.first.getFirstMillisecond(), this.last.getLastMillisecond() + 1.0),
turnOffAutoRange,
notify);
}
/**
* Returns the range of the values in the dataset's domain, including or excluding the interval
* around each x-value as specified.
*
* @param includeInterval a flag that determines whether or not the x-interval should be taken
* into account.
* @return The range.
*/
@Override
public Range getDomainBounds(boolean includeInterval) {
// first get the range without the interval, then expand it for the
// interval width
Range range = DatasetUtilities.findDomainBounds(this.dataset, false);
if (includeInterval && range != null) {
double lowerAdj = getIntervalWidth() * getIntervalPositionFactor();
double upperAdj = getIntervalWidth() - lowerAdj;
range = new Range(range.getLowerBound() - lowerAdj, range.getUpperBound() + upperAdj);
}
return range;
}
/**
* Returns a range that includes all the values in the specified <code>range</code> AND the
* specified <code>value</code>.
*
* @param range the range (<code>null</code> permitted).
* @param value the value that must be included.
* @return A range.
* @since 1.0.1
*/
public static Range expandToInclude(Range range, double value) {
if (range == null) {
return new Range(value, value);
}
if (value < range.getLowerBound()) {
return new Range(value, range.getUpperBound());
} else if (value > range.getUpperBound()) {
return new Range(range.getLowerBound(), value);
} else {
return range;
}
}
/**
* Returns the range of values the renderer requires to display all the items from the specified
* dataset.
*
* @param dataset the dataset (<code>null</code> permitted).
* @return The range (<code>null</code> if the dataset is <code>null</code> or empty).
* @see #findDomainBounds(XYDataset)
*/
public Range findRangeBounds(XYDataset dataset) {
if (dataset != null) {
Range r = DatasetUtilities.findRangeBounds(dataset, false);
if (r == null) {
return null;
} else {
return new Range(
r.getLowerBound() + this.yOffset, r.getUpperBound() + this.blockHeight + this.yOffset);
}
} else {
return null;
}
}
private Range trimToContentHeight(Range r) {
if (r == null) {
return null;
}
double lowerBound = 0.0;
double upperBound = Double.POSITIVE_INFINITY;
if (r.getLowerBound() > 0.0) {
lowerBound = trimToContentHeight(r.getLowerBound());
}
if (r.getUpperBound() < Double.POSITIVE_INFINITY) {
upperBound = trimToContentHeight(r.getUpperBound());
}
return new Range(lowerBound, upperBound);
}
/**
* Draws a range marker.
*
* @param g2 the graphics device.
* @param plot the plot.
* @param axis the value axis.
* @param marker the marker.
* @param dataArea the area for plotting data (not including 3D effect).
*/
@Override
public void drawRangeMarker(
Graphics2D g2, CategoryPlot plot, ValueAxis axis, Marker marker, Rectangle2D dataArea) {
Rectangle2D adjusted =
new Rectangle2D.Double(
dataArea.getX(),
dataArea.getY() + getYOffset(),
dataArea.getWidth() - getXOffset(),
dataArea.getHeight() - getYOffset());
if (marker instanceof ValueMarker) {
ValueMarker vm = (ValueMarker) marker;
double value = vm.getValue();
Range range = axis.getRange();
if (!range.contains(value)) {
return;
}
GeneralPath path = null;
PlotOrientation orientation = plot.getOrientation();
if (orientation == PlotOrientation.HORIZONTAL) {
float x = (float) axis.valueToJava2D(value, adjusted, plot.getRangeAxisEdge());
float y = (float) adjusted.getMaxY();
path = new GeneralPath();
path.moveTo(x, y);
path.lineTo((float) (x + getXOffset()), y - (float) getYOffset());
path.lineTo((float) (x + getXOffset()), (float) (adjusted.getMinY() - getYOffset()));
path.lineTo(x, (float) adjusted.getMinY());
path.closePath();
} else if (orientation == PlotOrientation.VERTICAL) {
float y = (float) axis.valueToJava2D(value, adjusted, plot.getRangeAxisEdge());
float x = (float) dataArea.getX();
path = new GeneralPath();
path.moveTo(x, y);
path.lineTo(x + (float) this.xOffset, y - (float) this.yOffset);
path.lineTo((float) (adjusted.getMaxX() + this.xOffset), y - (float) this.yOffset);
path.lineTo((float) (adjusted.getMaxX()), y);
path.closePath();
}
g2.setPaint(marker.getPaint());
g2.fill(path);
g2.setPaint(marker.getOutlinePaint());
g2.draw(path);
} else {
super.drawRangeMarker(g2, plot, axis, marker, adjusted);
// TODO: draw the interval marker with a 3D effect
}
}
/**
* 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.
* @param stroke the stroke.
* @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;
}
Rectangle2D adjusted =
new Rectangle2D.Double(
dataArea.getX(),
dataArea.getY() + getYOffset(),
dataArea.getWidth() - getXOffset(),
dataArea.getHeight() - getYOffset());
Line2D line1 = null;
Line2D line2 = null;
PlotOrientation orientation = plot.getOrientation();
if (orientation == PlotOrientation.HORIZONTAL) {
double x0 = axis.valueToJava2D(value, adjusted, plot.getRangeAxisEdge());
double x1 = x0 + getXOffset();
double y0 = dataArea.getMaxY();
double y1 = y0 - getYOffset();
double y2 = dataArea.getMinY();
line1 = new Line2D.Double(x0, y0, x1, y1);
line2 = new Line2D.Double(x1, y1, x1, y2);
} else if (orientation == PlotOrientation.VERTICAL) {
double y0 = axis.valueToJava2D(value, adjusted, plot.getRangeAxisEdge());
double y1 = y0 - getYOffset();
double x0 = dataArea.getMinX();
double x1 = x0 + getXOffset();
double x2 = dataArea.getMaxX();
line1 = new Line2D.Double(x0, y0, x1, y1);
line2 = new Line2D.Double(x1, y1, x2, y1);
}
g2.setPaint(paint);
g2.setStroke(stroke);
g2.draw(line1);
g2.draw(line2);
}
public double java2DToValue(double java2DValue, Rectangle2D area, RectangleEdge edge) {
Range range = getRange();
double axisMin = range.getLowerBound();
double axisMax = range.getUpperBound();
double min = 0.0d;
double max = 0.0d;
if (RectangleEdge.isTopOrBottom(edge)) {
min = area.getX();
max = area.getMaxX();
} else if (RectangleEdge.isLeftOrRight(edge)) {
min = area.getMaxY();
max = area.getY();
}
if (isInverted()) {
return axisMax - (((java2DValue - min) / (max - min)) * (axisMax - axisMin));
}
return (((java2DValue - min) / (max - min)) * (axisMax - axisMin)) + axisMin;
}
/** Check that the renderer is calculating the range bounds correctly. */
@Test
public void testFindRangeBounds() {
TableXYDataset dataset = RendererXYPackageTests.createTestTableXYDataset();
JFreeChart chart = ChartFactory.createStackedXYAreaChart("Test Chart", "X", "Y", dataset);
XYPlot plot = (XYPlot) chart.getPlot();
StackedXYAreaRenderer2 renderer = new StackedXYAreaRenderer2();
plot.setRenderer(renderer);
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
Range bounds = rangeAxis.getRange();
assertTrue(bounds.contains(6.0));
assertTrue(bounds.contains(8.0));
// try null argument
assertNull(renderer.findRangeBounds(null));
// try empty dataset
assertNull(renderer.findRangeBounds(new DefaultTableXYDataset()));
}
/**
* Returns the content size for the title. This will reflect the fact that a text title positioned
* on the left or right of a chart will be rotated 90 degrees.
*
* @param g2 the graphics device.
* @param widthRange the width range.
* @param heightRange the height range.
* @return The content size.
*/
protected Size2D arrangeRR(Graphics2D g2, Range widthRange, Range heightRange) {
RectangleEdge position = getPosition();
if (position == RectangleEdge.TOP || position == RectangleEdge.BOTTOM) {
float maxWidth = (float) widthRange.getUpperBound();
g2.setFont(this.font);
this.content =
TextUtilities.createTextBlock(
this.text,
this.font,
this.paint,
maxWidth,
this.maximumLinesToDisplay,
new G2TextMeasurer(g2));
this.content.setLineAlignment(this.textAlignment);
Size2D contentSize = this.content.calculateDimensions(g2);
if (this.expandToFitSpace) {
return new Size2D(maxWidth, contentSize.getHeight());
} else {
return contentSize;
}
} else if (position == RectangleEdge.LEFT || position == RectangleEdge.RIGHT) {
float maxWidth = (float) heightRange.getUpperBound();
g2.setFont(this.font);
this.content =
TextUtilities.createTextBlock(
this.text,
this.font,
this.paint,
maxWidth,
this.maximumLinesToDisplay,
new G2TextMeasurer(g2));
this.content.setLineAlignment(this.textAlignment);
Size2D contentSize = this.content.calculateDimensions(g2);
// transpose the dimensions, because the title is rotated
if (this.expandToFitSpace) {
return new Size2D(contentSize.getHeight(), maxWidth);
} else {
return new Size2D(contentSize.height, contentSize.width);
}
} else {
throw new RuntimeException("Unrecognised exception.");
}
}