/**
* Creates a temporary list of ticks that can be used when drawing the axis.
*
* @param g2 the graphics device (used to get font measurements).
* @param state the axis state.
* @param dataArea the area inside the axes.
* @param edge the location of the axis.
* @return A list of ticks.
*/
@Override
public List<CategoryTick> refreshTicks(
Graphics2D g2, AxisState state, Rectangle2D dataArea, RectangleEdge edge) {
List<CategoryTick> ticks = new java.util.ArrayList<CategoryTick>();
// sanity check for data area...
if (dataArea.getHeight() <= 0.0 || dataArea.getWidth() < 0.0) {
return ticks;
}
CategoryPlot plot = (CategoryPlot) getPlot();
List<Comparable> categories = plot.getCategoriesForAxis(this);
double max = 0.0;
if (categories != null) {
CategoryLabelPosition position = this.categoryLabelPositions.getLabelPosition(edge);
float r = this.maximumCategoryLabelWidthRatio;
if (r <= 0.0) {
r = position.getWidthRatio();
}
float l;
if (position.getWidthType() == CategoryLabelWidthType.CATEGORY) {
l = (float) calculateCategorySize(categories.size(), dataArea, edge);
} else {
if (RectangleEdge.isLeftOrRight(edge)) {
l = (float) dataArea.getWidth();
} else {
l = (float) dataArea.getHeight();
}
}
int categoryIndex = 0;
for (Comparable category : categories) {
g2.setFont(getTickLabelFont(category));
TextBlock label = createLabel(category, l * r, edge, g2);
if (edge == RectangleEdge.TOP || edge == RectangleEdge.BOTTOM) {
max = Math.max(max, calculateTextBlockHeight(label, position, g2));
} else if (edge == RectangleEdge.LEFT || edge == RectangleEdge.RIGHT) {
max = Math.max(max, calculateTextBlockWidth(label, position, g2));
}
ticks.add(
new CategoryTick(
category,
label,
position.getLabelAnchor(),
position.getRotationAnchor(),
position.getAngle()));
categoryIndex = categoryIndex + 1;
}
}
state.setMax(max);
return ticks;
}
/**
* Draws the tick marks. This method is called during chart rendering, you normally would not call
* this method yourself.
*
* @param g2 the graphics target ({@code null} not permitted)
* @param cursor the current offset from the edge of the dataArea
* @param dataArea the area used for plotting data ({@code null} not permitted)
* @param edge the location of the axis ({@code null} not permitted)
* @param state axis state information ({@code null} not permitted)
* @since 1.0.13
*/
public void drawTickMarks(
Graphics2D g2, double cursor, Rectangle2D dataArea, RectangleEdge edge, AxisState state) {
Plot p = getPlot();
if (p == null) {
return;
}
CategoryPlot plot = (CategoryPlot) p;
double il = getTickMarkInsideLength();
double ol = getTickMarkOutsideLength();
Line2D line = new Line2D.Double();
List<Comparable> categories = plot.getCategoriesForAxis(this);
g2.setPaint(getTickMarkPaint());
g2.setStroke(getTickMarkStroke());
if (edge.equals(RectangleEdge.TOP)) {
for (Comparable key : categories) {
double x = getCategoryMiddle(key, categories, dataArea, edge);
line.setLine(x, cursor, x, cursor + il);
g2.draw(line);
line.setLine(x, cursor, x, cursor - ol);
g2.draw(line);
}
state.cursorUp(ol);
} else if (edge.equals(RectangleEdge.BOTTOM)) {
for (Comparable key : categories) {
double x = getCategoryMiddle(key, categories, dataArea, edge);
line.setLine(x, cursor, x, cursor - il);
g2.draw(line);
line.setLine(x, cursor, x, cursor + ol);
g2.draw(line);
}
state.cursorDown(ol);
} else if (edge.equals(RectangleEdge.LEFT)) {
for (Comparable key : categories) {
double y = getCategoryMiddle(key, categories, dataArea, edge);
line.setLine(cursor, y, cursor + il, y);
g2.draw(line);
line.setLine(cursor, y, cursor - ol, y);
g2.draw(line);
}
state.cursorLeft(ol);
} else if (edge.equals(RectangleEdge.RIGHT)) {
for (Comparable key : categories) {
double y = getCategoryMiddle(key, categories, dataArea, edge);
line.setLine(cursor, y, cursor - il, y);
g2.draw(line);
line.setLine(cursor, y, cursor + ol, y);
g2.draw(line);
}
state.cursorRight(ol);
}
}
