/**
* Draws an item label.
*
* @param g2 the graphics device.
* @param orientation the orientation.
* @param dataset the dataset.
* @param series the series index (zero-based).
* @param item the item index (zero-based).
* @param x the x coordinate (in Java2D space).
* @param y the y coordinate (in Java2D space).
* @param negative indicates a negative value (which affects the item label position).
*/
private void drawAdditionalItemLabel(
Graphics2D g2,
PlotOrientation orientation,
XYDataset dataset,
int series,
int item,
double x,
double y) {
if (this.additionalItemLabelGenerator == null) {
return;
}
Font labelFont = getItemLabelFont(series, item);
Paint paint = getItemLabelPaint(series, item);
g2.setFont(labelFont);
g2.setPaint(paint);
String label = this.additionalItemLabelGenerator.generateLabel(dataset, series, item);
ItemLabelPosition position = getNegativeItemLabelPosition(series, item);
Point2D anchorPoint =
calculateLabelAnchorPoint(position.getItemLabelAnchor(), x, y, orientation);
TextUtilities.drawRotatedString(
label,
g2,
(float) anchorPoint.getX(),
(float) anchorPoint.getY(),
position.getTextAnchor(),
position.getAngle(),
position.getRotationAnchor());
}
/**
* Draws an item label.
*
* @param g2 the graphics device.
* @param orientation the orientation.
* @param dataset the dataset.
* @param row the row.
* @param column the column.
* @param x the x coordinate (in Java2D space).
* @param y the y coordinate (in Java2D space).
* @param negative indicates a negative value (which affects the item label position).
*/
protected void drawItemLabel(
Graphics2D g2,
PlotOrientation orientation,
CategoryDataset dataset,
int row,
int column,
double x,
double y,
boolean negative) {
CategoryItemLabelGenerator generator = getItemLabelGenerator(row, column);
if (generator != null) {
Font labelFont = getItemLabelFont(row, column);
Paint paint = getItemLabelPaint(row, column);
g2.setFont(labelFont);
g2.setPaint(paint);
String label = generator.generateLabel(dataset, row, column);
ItemLabelPosition position = null;
if (!negative) {
position = getPositiveItemLabelPosition(row, column);
} else {
position = getNegativeItemLabelPosition(row, column);
}
Point2D anchorPoint =
calculateLabelAnchorPoint(position.getItemLabelAnchor(), x, y, orientation);
TextUtilities.drawRotatedString(
label,
g2,
(float) anchorPoint.getX(),
(float) anchorPoint.getY(),
position.getTextAnchor(),
position.getAngle(),
position.getRotationAnchor());
}
}
/**
* Draws the axis label.
*
* @param label the label text.
* @param g2 the graphics device.
* @param plotArea the plot area.
* @param dataArea the area inside the axes.
* @param edge the location of the axis.
* @param state the axis state (<code>null</code> not permitted).
* @return Information about the axis.
*/
protected AxisState drawLabel(
String label,
Graphics2D g2,
Rectangle2D plotArea,
Rectangle2D dataArea,
RectangleEdge edge,
AxisState state) {
// it is unlikely that 'state' will be null, but check anyway...
ParamChecks.nullNotPermitted(state, "state");
if ((label == null) || (label.equals(""))) {
return state;
}
Font font = getLabelFont();
RectangleInsets insets = getLabelInsets();
g2.setFont(font);
g2.setPaint(getLabelPaint());
FontMetrics fm = g2.getFontMetrics();
Rectangle2D labelBounds = TextUtilities.getTextBounds(label, g2, fm);
if (edge == RectangleEdge.TOP) {
AffineTransform t =
AffineTransform.getRotateInstance(
getLabelAngle(), labelBounds.getCenterX(), labelBounds.getCenterY());
Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
labelBounds = rotatedLabelBounds.getBounds2D();
double labelx = dataArea.getCenterX();
double labely = state.getCursor() - insets.getBottom() - labelBounds.getHeight() / 2.0;
TextUtilities.drawRotatedString(
label,
g2,
(float) labelx,
(float) labely,
TextAnchor.CENTER,
getLabelAngle(),
TextAnchor.CENTER);
state.cursorUp(insets.getTop() + labelBounds.getHeight() + insets.getBottom());
} else if (edge == RectangleEdge.BOTTOM) {
AffineTransform t =
AffineTransform.getRotateInstance(
getLabelAngle(), labelBounds.getCenterX(), labelBounds.getCenterY());
Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
labelBounds = rotatedLabelBounds.getBounds2D();
double labelx = dataArea.getCenterX();
double labely = state.getCursor() + insets.getTop() + labelBounds.getHeight() / 2.0;
TextUtilities.drawRotatedString(
label,
g2,
(float) labelx,
(float) labely,
TextAnchor.CENTER,
getLabelAngle(),
TextAnchor.CENTER);
state.cursorDown(insets.getTop() + labelBounds.getHeight() + insets.getBottom());
} else if (edge == RectangleEdge.LEFT) {
AffineTransform t =
AffineTransform.getRotateInstance(
getLabelAngle() - Math.PI / 2.0, labelBounds.getCenterX(), labelBounds.getCenterY());
Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
labelBounds = rotatedLabelBounds.getBounds2D();
double labelx = state.getCursor() - insets.getRight() - labelBounds.getWidth() / 2.0;
double labely = dataArea.getCenterY();
TextUtilities.drawRotatedString(
label,
g2,
(float) labelx,
(float) labely,
TextAnchor.CENTER,
getLabelAngle() - Math.PI / 2.0,
TextAnchor.CENTER);
state.cursorLeft(insets.getLeft() + labelBounds.getWidth() + insets.getRight());
} else if (edge == RectangleEdge.RIGHT) {
AffineTransform t =
AffineTransform.getRotateInstance(
getLabelAngle() + Math.PI / 2.0, labelBounds.getCenterX(), labelBounds.getCenterY());
Shape rotatedLabelBounds = t.createTransformedShape(labelBounds);
labelBounds = rotatedLabelBounds.getBounds2D();
double labelx = state.getCursor() + insets.getLeft() + labelBounds.getWidth() / 2.0;
double labely = dataArea.getY() + dataArea.getHeight() / 2.0;
TextUtilities.drawRotatedString(
label,
g2,
(float) labelx,
(float) labely,
TextAnchor.CENTER,
getLabelAngle() + Math.PI / 2.0,
TextAnchor.CENTER);
state.cursorRight(insets.getLeft() + labelBounds.getWidth() + insets.getRight());
}
return state;
}
/**
* Draws the annotation.
*
* @param g2 the graphics device.
* @param plot the plot.
* @param dataArea the data area.
* @param domainAxis the domain axis.
* @param rangeAxis the range axis.
* @param rendererIndex the renderer index.
* @param info the plot rendering info.
*/
public void draw(
Graphics2D g2,
XYPlot plot,
Rectangle2D dataArea,
ValueAxis domainAxis,
ValueAxis rangeAxis,
int rendererIndex,
PlotRenderingInfo info) {
PlotOrientation orientation = plot.getOrientation();
RectangleEdge domainEdge =
Plot.resolveDomainAxisLocation(plot.getDomainAxisLocation(), orientation);
RectangleEdge rangeEdge =
Plot.resolveRangeAxisLocation(plot.getRangeAxisLocation(), orientation);
double j2DX = domainAxis.valueToJava2D(getX(), dataArea, domainEdge);
double j2DY = rangeAxis.valueToJava2D(getY(), dataArea, rangeEdge);
if (orientation == PlotOrientation.HORIZONTAL) {
double temp = j2DX;
j2DX = j2DY;
j2DY = temp;
}
double startX = j2DX + Math.cos(this.angle) * this.baseRadius;
double startY = j2DY + Math.sin(this.angle) * this.baseRadius;
double endX = j2DX + Math.cos(this.angle) * this.tipRadius;
double endY = j2DY + Math.sin(this.angle) * this.tipRadius;
double arrowBaseX = endX + Math.cos(this.angle) * this.arrowLength;
double arrowBaseY = endY + Math.sin(this.angle) * this.arrowLength;
double arrowLeftX = arrowBaseX + Math.cos(this.angle + Math.PI / 2.0) * this.arrowWidth;
double arrowLeftY = arrowBaseY + Math.sin(this.angle + Math.PI / 2.0) * this.arrowWidth;
double arrowRightX = arrowBaseX - Math.cos(this.angle + Math.PI / 2.0) * this.arrowWidth;
double arrowRightY = arrowBaseY - Math.sin(this.angle + Math.PI / 2.0) * this.arrowWidth;
GeneralPath arrow = new GeneralPath();
arrow.moveTo((float) endX, (float) endY);
arrow.lineTo((float) arrowLeftX, (float) arrowLeftY);
arrow.lineTo((float) arrowRightX, (float) arrowRightY);
arrow.closePath();
g2.setStroke(this.arrowStroke);
g2.setPaint(this.arrowPaint);
Line2D line = new Line2D.Double(startX, startY, arrowBaseX, arrowBaseY);
g2.draw(line);
g2.fill(arrow);
// draw the label
double labelX = j2DX + Math.cos(this.angle) * (this.baseRadius + this.labelOffset);
double labelY = j2DY + Math.sin(this.angle) * (this.baseRadius + this.labelOffset);
g2.setFont(getFont());
Shape hotspot =
TextUtilities.calculateRotatedStringBounds(
getText(),
g2,
(float) labelX,
(float) labelY,
getTextAnchor(),
getRotationAngle(),
getRotationAnchor());
if (getBackgroundPaint() != null) {
g2.setPaint(getBackgroundPaint());
g2.fill(hotspot);
}
g2.setPaint(getPaint());
TextUtilities.drawRotatedString(
getText(),
g2,
(float) labelX,
(float) labelY,
getTextAnchor(),
getRotationAngle(),
getRotationAnchor());
if (isOutlineVisible()) {
g2.setStroke(getOutlineStroke());
g2.setPaint(getOutlinePaint());
g2.draw(hotspot);
}
String toolTip = getToolTipText();
String url = getURL();
if (toolTip != null || url != null) {
addEntity(info, hotspot, rendererIndex, toolTip, url);
}
}
/**
* Draws an item label. This method is provided as an alternative to {@link
* #drawItemLabel(Graphics2D, PlotOrientation, XYDataset, int, int, double, double, boolean)} so
* that the bar can be used to calculate the label anchor point.
*
* @param g2 the graphics device.
* @param dataset the dataset.
* @param series the series index.
* @param item the item index.
* @param plot the plot.
* @param generator the label generator ({@code null} permitted, in which case the method does
* nothing, just returns).
* @param bar the bar.
* @param negative a flag indicating a negative value.
*/
protected void drawItemLabel(
Graphics2D g2,
XYDataset dataset,
int series,
int item,
XYPlot plot,
XYItemLabelGenerator generator,
Rectangle2D bar,
boolean negative) {
if (generator == null) {
return; // nothing to do
}
String label = generator.generateLabel(dataset, series, item);
if (label == null) {
return; // nothing to do
}
Font labelFont = getItemLabelFont(series, item);
g2.setFont(labelFont);
Paint paint = getItemLabelPaint(series, item);
g2.setPaint(paint);
// find out where to place the label...
ItemLabelPosition position;
if (!negative) {
position = getPositiveItemLabelPosition(series, item);
} else {
position = getNegativeItemLabelPosition(series, item);
}
// work out the label anchor point...
Point2D anchorPoint =
calculateLabelAnchorPoint(position.getItemLabelAnchor(), bar, plot.getOrientation());
if (isInternalAnchor(position.getItemLabelAnchor())) {
Shape bounds =
TextUtilities.calculateRotatedStringBounds(
label,
g2,
(float) anchorPoint.getX(),
(float) anchorPoint.getY(),
position.getTextAnchor(),
position.getAngle(),
position.getRotationAnchor());
if (bounds != null) {
if (!bar.contains(bounds.getBounds2D())) {
if (!negative) {
position = getPositiveItemLabelPositionFallback();
} else {
position = getNegativeItemLabelPositionFallback();
}
if (position != null) {
anchorPoint =
calculateLabelAnchorPoint(
position.getItemLabelAnchor(), bar, plot.getOrientation());
}
}
}
}
if (position != null) {
TextUtilities.drawRotatedString(
label,
g2,
(float) anchorPoint.getX(),
(float) anchorPoint.getY(),
position.getTextAnchor(),
position.getAngle(),
position.getRotationAnchor());
}
}
/**
* Draws the category labels and returns the updated axis state.
*
* @param g2 the graphics device (<code>null</code> not permitted).
* @param plotArea the plot area (<code>null</code> not permitted).
* @param dataArea the area inside the axes (<code>null</code> not permitted).
* @param edge the axis location (<code>null</code> not permitted).
* @param state the axis state (<code>null</code> not permitted).
* @param plotState collects information about the plot (<code>null</code> permitted).
* @return The updated axis state (never <code>null</code>).
*/
protected AxisState drawSubCategoryLabels(
Graphics2D g2,
Rectangle2D plotArea,
Rectangle2D dataArea,
RectangleEdge edge,
AxisState state,
PlotRenderingInfo plotState) {
if (state == null) {
throw new IllegalArgumentException("Null 'state' argument.");
}
g2.setFont(this.subLabelFont);
g2.setPaint(this.subLabelPaint);
CategoryPlot plot = (CategoryPlot) getPlot();
CategoryDataset dataset = plot.getDataset();
int categoryCount = dataset.getColumnCount();
double maxdim = getMaxDim(g2, edge);
for (int categoryIndex = 0; categoryIndex < categoryCount; categoryIndex++) {
double x0 = 0.0;
double x1 = 0.0;
double y0 = 0.0;
double y1 = 0.0;
if (edge == RectangleEdge.TOP) {
x0 = getCategoryStart(categoryIndex, categoryCount, dataArea, edge);
x1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, edge);
y1 = state.getCursor();
y0 = y1 - maxdim;
} else if (edge == RectangleEdge.BOTTOM) {
x0 = getCategoryStart(categoryIndex, categoryCount, dataArea, edge);
x1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, edge);
y0 = state.getCursor();
y1 = y0 + maxdim;
} else if (edge == RectangleEdge.LEFT) {
y0 = getCategoryStart(categoryIndex, categoryCount, dataArea, edge);
y1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, edge);
x1 = state.getCursor();
x0 = x1 - maxdim;
} else if (edge == RectangleEdge.RIGHT) {
y0 = getCategoryStart(categoryIndex, categoryCount, dataArea, edge);
y1 = getCategoryEnd(categoryIndex, categoryCount, dataArea, edge);
x0 = state.getCursor();
x1 = x0 + maxdim;
}
Rectangle2D area = new Rectangle2D.Double(x0, y0, (x1 - x0), (y1 - y0));
int subCategoryCount = this.subCategories.size();
float width = (float) ((x1 - x0) / subCategoryCount);
float height = (float) ((y1 - y0) / subCategoryCount);
float xx = 0.0f;
float yy = 0.0f;
for (int i = 0; i < subCategoryCount; i++) {
if (RectangleEdge.isTopOrBottom(edge)) {
xx = (float) (x0 + (i + 0.5) * width);
yy = (float) area.getCenterY();
} else {
xx = (float) area.getCenterX();
yy = (float) (y0 + (i + 0.5) * height);
}
String label = this.subCategories.get(i).toString();
TextUtilities.drawRotatedString(
label, g2, xx, yy, TextAnchor.CENTER, 0.0, TextAnchor.CENTER);
}
}
if (edge.equals(RectangleEdge.TOP)) {
double h = maxdim;
state.cursorUp(h);
} else if (edge.equals(RectangleEdge.BOTTOM)) {
double h = maxdim;
state.cursorDown(h);
} else if (edge == RectangleEdge.LEFT) {
double w = maxdim;
state.cursorLeft(w);
} else if (edge == RectangleEdge.RIGHT) {
double w = maxdim;
state.cursorRight(w);
}
return state;
}
