/**
* Draws the visual representation of a single data item.
*
* @param g2 the graphics device.
* @param state the renderer state.
* @param dataArea the area within which the plot is being drawn.
* @param info collects information about the drawing.
* @param plot the plot (can be used to obtain standard color information etc).
* @param domainAxis the domain axis.
* @param rangeAxis the range axis.
* @param dataset the dataset.
* @param series the series index (zero-based).
* @param item the item index (zero-based).
* @param crosshairState crosshair information for the plot ({@code null} permitted).
* @param pass the pass index.
*/
@Override
public void drawItem(
Graphics2D g2,
XYItemRendererState state,
Rectangle2D dataArea,
PlotRenderingInfo info,
XYPlot plot,
ValueAxis domainAxis,
ValueAxis rangeAxis,
XYDataset dataset,
int series,
int item,
CrosshairState crosshairState,
int pass) {
if (!getItemVisible(series, item)) {
return;
}
IntervalXYDataset intervalDataset = (IntervalXYDataset) dataset;
double value0;
double value1;
if (this.useYInterval) {
value0 = intervalDataset.getStartYValue(series, item);
value1 = intervalDataset.getEndYValue(series, item);
} else {
value0 = this.base;
value1 = intervalDataset.getYValue(series, item);
}
if (Double.isNaN(value0) || Double.isNaN(value1)) {
return;
}
if (value0 <= value1) {
if (!rangeAxis.getRange().intersects(value0, value1)) {
return;
}
} else {
if (!rangeAxis.getRange().intersects(value1, value0)) {
return;
}
}
double translatedValue0 = rangeAxis.valueToJava2D(value0, dataArea, plot.getRangeAxisEdge());
double translatedValue1 = rangeAxis.valueToJava2D(value1, dataArea, plot.getRangeAxisEdge());
double bottom = Math.min(translatedValue0, translatedValue1);
double top = Math.max(translatedValue0, translatedValue1);
double startX = intervalDataset.getStartXValue(series, item);
if (Double.isNaN(startX)) {
return;
}
double endX = intervalDataset.getEndXValue(series, item);
if (Double.isNaN(endX)) {
return;
}
if (startX <= endX) {
if (!domainAxis.getRange().intersects(startX, endX)) {
return;
}
} else {
if (!domainAxis.getRange().intersects(endX, startX)) {
return;
}
}
// is there an alignment adjustment to be made?
if (this.barAlignmentFactor >= 0.0 && this.barAlignmentFactor <= 1.0) {
double x = intervalDataset.getXValue(series, item);
double interval = endX - startX;
startX = x - interval * this.barAlignmentFactor;
endX = startX + interval;
}
RectangleEdge location = plot.getDomainAxisEdge();
double translatedStartX = domainAxis.valueToJava2D(startX, dataArea, location);
double translatedEndX = domainAxis.valueToJava2D(endX, dataArea, location);
double translatedWidth = Math.max(1, Math.abs(translatedEndX - translatedStartX));
double left = Math.min(translatedStartX, translatedEndX);
if (getMargin() > 0.0) {
double cut = translatedWidth * getMargin();
translatedWidth = translatedWidth - cut;
left = left + cut / 2;
}
Rectangle2D bar = null;
PlotOrientation orientation = plot.getOrientation();
if (orientation.isHorizontal()) {
// clip left and right bounds to data area
bottom = Math.max(bottom, dataArea.getMinX());
top = Math.min(top, dataArea.getMaxX());
bar = new Rectangle2D.Double(bottom, left, top - bottom, translatedWidth);
} else if (orientation.isVertical()) {
// clip top and bottom bounds to data area
bottom = Math.max(bottom, dataArea.getMinY());
top = Math.min(top, dataArea.getMaxY());
bar = new Rectangle2D.Double(left, bottom, translatedWidth, top - bottom);
}
boolean positive = (value1 > 0.0);
boolean inverted = rangeAxis.isInverted();
RectangleEdge barBase;
if (orientation.isHorizontal()) {
if (positive && inverted || !positive && !inverted) {
barBase = RectangleEdge.RIGHT;
} else {
barBase = RectangleEdge.LEFT;
}
} else {
if (positive && !inverted || !positive && inverted) {
barBase = RectangleEdge.BOTTOM;
} else {
barBase = RectangleEdge.TOP;
}
}
if (state.getElementHinting()) {
beginElementGroup(g2, dataset.getSeriesKey(series), item);
}
if (getShadowsVisible()) {
this.barPainter.paintBarShadow(g2, this, series, item, bar, barBase, !this.useYInterval);
}
this.barPainter.paintBar(g2, this, series, item, bar, barBase);
if (state.getElementHinting()) {
endElementGroup(g2);
}
if (isItemLabelVisible(series, item)) {
XYItemLabelGenerator generator = getItemLabelGenerator(series, item);
drawItemLabel(g2, dataset, series, item, plot, generator, bar, value1 < 0.0);
}
// update the crosshair point
double x1 = (startX + endX) / 2.0;
double y1 = dataset.getYValue(series, item);
double transX1 = domainAxis.valueToJava2D(x1, dataArea, location);
double transY1 = rangeAxis.valueToJava2D(y1, dataArea, plot.getRangeAxisEdge());
int domainAxisIndex = plot.getDomainAxisIndex(domainAxis);
int rangeAxisIndex = plot.getRangeAxisIndex(rangeAxis);
updateCrosshairValues(
crosshairState,
x1,
y1,
domainAxisIndex,
rangeAxisIndex,
transX1,
transY1,
plot.getOrientation());
EntityCollection entities = state.getEntityCollection();
if (entities != null) {
addEntity(entities, bar, dataset, series, item, 0.0, 0.0);
}
}
/**
* Draws the visual representation of a single data item.
*
* @param g2 the graphics device.
* @param state the renderer state.
* @param dataArea the area within which the plot is being drawn.
* @param info collects information about the drawing.
* @param plot the plot (can be used to obtain standard color information etc).
* @param domainAxis the domain axis.
* @param rangeAxis the range axis.
* @param dataset the dataset.
* @param series the series index (zero-based).
* @param item the item index (zero-based).
* @param crosshairState crosshair information for the plot (<code>null</code> permitted).
* @param pass the pass index.
*/
public void drawItem(
Graphics2D g2,
XYItemRendererState state,
Rectangle2D dataArea,
PlotRenderingInfo info,
XYPlot plot,
ValueAxis domainAxis,
ValueAxis rangeAxis,
XYDataset dataset,
int series,
int item,
CrosshairState crosshairState,
int pass) {
if (!(dataset instanceof IntervalXYDataset && dataset instanceof TableXYDataset)) {
String message = "dataset (type " + dataset.getClass().getName() + ") has wrong type:";
boolean and = false;
if (!IntervalXYDataset.class.isAssignableFrom(dataset.getClass())) {
message += " it is no IntervalXYDataset";
and = true;
}
if (!TableXYDataset.class.isAssignableFrom(dataset.getClass())) {
if (and) {
message += " and";
}
message += " it is no TableXYDataset";
}
throw new IllegalArgumentException(message);
}
IntervalXYDataset intervalDataset = (IntervalXYDataset) dataset;
double value = intervalDataset.getYValue(series, item);
if (Double.isNaN(value)) {
return;
}
// if we are rendering the values as percentages, we need to calculate
// the total for the current item. Unfortunately here we end up
// repeating the calculation more times than is strictly necessary -
// hopefully I'll come back to this and find a way to add the
// total(s) to the renderer state. The other problem is we implicitly
// assume the dataset has no negative values...perhaps that can be
// fixed too.
double total = 0.0;
if (this.renderAsPercentages) {
total = DatasetUtilities.calculateStackTotal((TableXYDataset) dataset, item);
value = value / total;
}
double positiveBase = 0.0;
double negativeBase = 0.0;
for (int i = 0; i < series; i++) {
double v = dataset.getYValue(i, item);
if (!Double.isNaN(v)) {
if (this.renderAsPercentages) {
v = v / total;
}
if (v > 0) {
positiveBase = positiveBase + v;
} else {
negativeBase = negativeBase + v;
}
}
}
double translatedBase;
double translatedValue;
RectangleEdge edgeR = plot.getRangeAxisEdge();
if (value > 0.0) {
translatedBase = rangeAxis.valueToJava2D(positiveBase, dataArea, edgeR);
translatedValue = rangeAxis.valueToJava2D(positiveBase + value, dataArea, edgeR);
} else {
translatedBase = rangeAxis.valueToJava2D(negativeBase, dataArea, edgeR);
translatedValue = rangeAxis.valueToJava2D(negativeBase + value, dataArea, edgeR);
}
RectangleEdge edgeD = plot.getDomainAxisEdge();
double startX = intervalDataset.getStartXValue(series, item);
if (Double.isNaN(startX)) {
return;
}
double translatedStartX = domainAxis.valueToJava2D(startX, dataArea, edgeD);
double endX = intervalDataset.getEndXValue(series, item);
if (Double.isNaN(endX)) {
return;
}
double translatedEndX = domainAxis.valueToJava2D(endX, dataArea, edgeD);
double translatedWidth = Math.max(1, Math.abs(translatedEndX - translatedStartX));
double translatedHeight = Math.abs(translatedValue - translatedBase);
if (getMargin() > 0.0) {
double cut = translatedWidth * getMargin();
translatedWidth = translatedWidth - cut;
translatedStartX = translatedStartX + cut / 2;
}
Rectangle2D bar = null;
PlotOrientation orientation = plot.getOrientation();
if (orientation == PlotOrientation.HORIZONTAL) {
bar =
new Rectangle2D.Double(
Math.min(translatedBase, translatedValue),
Math.min(translatedEndX, translatedStartX),
translatedHeight,
translatedWidth);
} else if (orientation == PlotOrientation.VERTICAL) {
bar =
new Rectangle2D.Double(
Math.min(translatedStartX, translatedEndX),
Math.min(translatedBase, translatedValue),
translatedWidth,
translatedHeight);
}
boolean positive = (value > 0.0);
boolean inverted = rangeAxis.isInverted();
RectangleEdge barBase;
if (orientation == PlotOrientation.HORIZONTAL) {
if (positive && inverted || !positive && !inverted) {
barBase = RectangleEdge.RIGHT;
} else {
barBase = RectangleEdge.LEFT;
}
} else {
if (positive && !inverted || !positive && inverted) {
barBase = RectangleEdge.BOTTOM;
} else {
barBase = RectangleEdge.TOP;
}
}
if (pass == 0) {
if (getShadowsVisible()) {
getBarPainter().paintBarShadow(g2, this, series, item, bar, barBase, false);
}
} else if (pass == 1) {
getBarPainter().paintBar(g2, this, series, item, bar, barBase);
// add an entity for the item...
if (info != null) {
EntityCollection entities = info.getOwner().getEntityCollection();
if (entities != null) {
addEntity(entities, bar, dataset, series, item, bar.getCenterX(), bar.getCenterY());
}
}
} else if (pass == 2) {
// handle item label drawing, now that we know all the bars have
// been drawn...
if (isItemLabelVisible(series, item)) {
XYItemLabelGenerator generator = getItemLabelGenerator(series, item);
drawItemLabel(g2, dataset, series, item, plot, generator, bar, value < 0.0);
}
}
}
/**
* Draws the visual representation of a single data item.
*
* @param g2 the graphics device.
* @param state the renderer state.
* @param dataArea the area within which the plot is being drawn.
* @param info collects information about the drawing.
* @param plot the plot (can be used to obtain standard color information etc).
* @param domainAxis the domain axis.
* @param rangeAxis the range axis.
* @param dataset the dataset.
* @param series the series index (zero-based).
* @param item the item index (zero-based).
* @param crosshairState crosshair information for the plot (<code>null</code> permitted).
* @param pass the pass index.
*/
@Override
public void drawItem(
Graphics2D g2,
XYItemRendererState state,
Rectangle2D dataArea,
PlotRenderingInfo info,
XYPlot plot,
ValueAxis domainAxis,
ValueAxis rangeAxis,
XYDataset dataset,
int series,
int item,
CrosshairState crosshairState,
int pass) {
double x = dataset.getXValue(series, item);
if (!domainAxis.getRange().contains(x)) {
return; // the x value is not within the axis range
}
double xx = domainAxis.valueToJava2D(x, dataArea, plot.getDomainAxisEdge());
// setup for collecting optional entity info...
Shape entityArea = null;
EntityCollection entities = null;
if (info != null) {
entities = info.getOwner().getEntityCollection();
}
PlotOrientation orientation = plot.getOrientation();
RectangleEdge location = plot.getRangeAxisEdge();
Paint itemPaint = getItemPaint(series, item);
Stroke itemStroke = getItemStroke(series, item);
g2.setPaint(itemPaint);
g2.setStroke(itemStroke);
if (dataset instanceof OHLCDataset) {
OHLCDataset hld = (OHLCDataset) dataset;
double yHigh = hld.getHighValue(series, item);
double yLow = hld.getLowValue(series, item);
if (!Double.isNaN(yHigh) && !Double.isNaN(yLow)) {
double yyHigh = rangeAxis.valueToJava2D(yHigh, dataArea, location);
double yyLow = rangeAxis.valueToJava2D(yLow, dataArea, location);
if (orientation == PlotOrientation.HORIZONTAL) {
g2.draw(new Line2D.Double(yyLow, xx, yyHigh, xx));
entityArea =
new Rectangle2D.Double(
Math.min(yyLow, yyHigh), xx - 1.0, Math.abs(yyHigh - yyLow), 2.0);
} else if (orientation == PlotOrientation.VERTICAL) {
g2.draw(new Line2D.Double(xx, yyLow, xx, yyHigh));
entityArea =
new Rectangle2D.Double(
xx - 1.0, Math.min(yyLow, yyHigh), 2.0, Math.abs(yyHigh - yyLow));
}
}
double delta = getTickLength();
if (domainAxis.isInverted()) {
delta = -delta;
}
if (getDrawOpenTicks()) {
double yOpen = hld.getOpenValue(series, item);
if (!Double.isNaN(yOpen)) {
double yyOpen = rangeAxis.valueToJava2D(yOpen, dataArea, location);
if (this.openTickPaint != null) {
g2.setPaint(this.openTickPaint);
} else {
g2.setPaint(itemPaint);
}
if (orientation == PlotOrientation.HORIZONTAL) {
g2.draw(new Line2D.Double(yyOpen, xx + delta, yyOpen, xx));
} else if (orientation == PlotOrientation.VERTICAL) {
g2.draw(new Line2D.Double(xx - delta, yyOpen, xx, yyOpen));
}
}
}
if (getDrawCloseTicks()) {
double yClose = hld.getCloseValue(series, item);
if (!Double.isNaN(yClose)) {
double yyClose = rangeAxis.valueToJava2D(yClose, dataArea, location);
if (this.closeTickPaint != null) {
g2.setPaint(this.closeTickPaint);
} else {
g2.setPaint(itemPaint);
}
if (orientation == PlotOrientation.HORIZONTAL) {
g2.draw(new Line2D.Double(yyClose, xx, yyClose, xx - delta));
} else if (orientation == PlotOrientation.VERTICAL) {
g2.draw(new Line2D.Double(xx, yyClose, xx + delta, yyClose));
}
}
}
} else {
// not a HighLowDataset, so just draw a line connecting this point
// with the previous point...
if (item > 0) {
double x0 = dataset.getXValue(series, item - 1);
double y0 = dataset.getYValue(series, item - 1);
double y = dataset.getYValue(series, item);
if (Double.isNaN(x0) || Double.isNaN(y0) || Double.isNaN(y)) {
return;
}
double xx0 = domainAxis.valueToJava2D(x0, dataArea, plot.getDomainAxisEdge());
double yy0 = rangeAxis.valueToJava2D(y0, dataArea, location);
double yy = rangeAxis.valueToJava2D(y, dataArea, location);
if (orientation == PlotOrientation.HORIZONTAL) {
g2.draw(new Line2D.Double(yy0, xx0, yy, xx));
} else if (orientation == PlotOrientation.VERTICAL) {
g2.draw(new Line2D.Double(xx0, yy0, xx, yy));
}
}
}
if (entities != null) {
addEntity(entities, entityArea, dataset, series, item, 0.0, 0.0);
}
}
// copied and modified from jfreechart-1.0.14 org.jfree.chart.renderer.category.BarRenderer
private void drawItemInternal(
Graphics2D g2,
CategoryItemRendererState state,
Rectangle2D dataArea,
CategoryPlot plot,
CategoryAxis domainAxis,
ValueAxis rangeAxis,
CategoryDataset dataset,
int row,
int column,
int pass) {
// nothing is drawn if the row index is not included in the list with
// the indices of the visible rows...
int visibleRow = state.getVisibleSeriesIndex(row);
if (visibleRow < 0) {
return;
}
// nothing is drawn for null values...
Number dataValue = dataset.getValue(row, column);
if (dataValue == null) {
return;
}
final double value = dataValue.doubleValue();
PlotOrientation orientation = plot.getOrientation();
double barW0 =
calculateBarW0(plot, orientation, dataArea, domainAxis, state, visibleRow, column);
double[] barL0L1 = calculateBarL0L1(value);
if (barL0L1 == null) {
return; // the bar is not visible
}
RectangleEdge edge = plot.getRangeAxisEdge();
double transL0 = rangeAxis.valueToJava2D(barL0L1[0], dataArea, edge);
double transL1 = rangeAxis.valueToJava2D(barL0L1[1], dataArea, edge);
// in the following code, barL0 is (in Java2D coordinates) the LEFT
// end of the bar for a horizontal bar chart, and the TOP end of the
// bar for a vertical bar chart. Whether this is the BASE of the bar
// or not depends also on (a) whether the data value is 'negative'
// relative to the base value and (b) whether or not the range axis is
// inverted. This only matters if/when we apply the minimumBarLength
// attribute, because we should extend the non-base end of the bar
boolean positive = (value >= this.getBase());
boolean inverted = rangeAxis.isInverted();
double barL0 = Math.min(transL0, transL1);
double barLength = Math.abs(transL1 - transL0);
double barLengthAdj = 0.0;
if (barLength > 0.0 && barLength < getMinimumBarLength()) {
barLengthAdj = getMinimumBarLength() - barLength;
}
double barL0Adj = 0.0;
RectangleEdge barBase;
if (orientation == PlotOrientation.HORIZONTAL) {
if (positive && inverted || !positive && !inverted) {
barL0Adj = barLengthAdj;
barBase = RectangleEdge.RIGHT;
} else {
barBase = RectangleEdge.LEFT;
}
} else {
if (positive && !inverted || !positive && inverted) {
barL0Adj = barLengthAdj;
barBase = RectangleEdge.BOTTOM;
} else {
barBase = RectangleEdge.TOP;
}
}
// draw the bar...
RectangularShape bar = null;
if (orientation == PlotOrientation.HORIZONTAL) {
bar =
getBarShape(
row, barL0 - barL0Adj, barW0, barLength + barLengthAdj, state.getBarWidth());
} else {
bar =
getBarShape(
row, barW0, barL0 - barL0Adj, state.getBarWidth(), barLength + barLengthAdj);
}
if (getShadowsVisible()) {
this.getBarPainter().paintBarShadow(g2, this, row, column, bar, barBase, true);
}
this.getBarPainter().paintBar(g2, this, row, column, bar, barBase);
// FIXME
// CategoryItemLabelGenerator generator = getItemLabelGenerator(row,
// column);
// if (generator != null && isItemLabelVisible(row, column)) {
// drawItemLabel(g2, dataset, row, column, plot, generator, bar,
// (value < 0.0));
// }
// submit the current data point as a crosshair candidate
int datasetIndex = plot.indexOf(dataset);
updateCrosshairValues(
state.getCrosshairState(),
dataset.getRowKey(row),
dataset.getColumnKey(column),
value,
datasetIndex,
barW0,
barL0,
orientation);
// add an item entity, if this information is being collected
EntityCollection entities = state.getEntityCollection();
if (entities != null) {
addItemEntity(entities, dataset, row, column, bar);
}
}