Example usage for org.jfree.chart.axis DateTickUnit addToDate

Introduction

In this page you can find the example usage for org.jfree.chart.axis DateTickUnit addToDate.

Prototype

public Date addToDate(Date base) 

Source Link

Document

Calculates a new date by adding this unit to the base date, with calculations performed in the default timezone and locale.

Usage

From source file:figs.treeVisualization.gui.PhyloDateAxis.java

protected List<DateTick> refreshTicksVertical(Graphics2D g2, Rectangle2D dataArea) {

    List<DateTick> result = new ArrayList<DateTick>();
    DateFormat formatter = getDateFormatOverride();

    Font tickLabelFont = getTickLabelFont();
    g2.setFont(tickLabelFont);/*from  ww w.ja v  a  2s. com*/

    if (isAutoTickUnitSelection()) {
        selectAutoTickUnit(g2, dataArea, RectangleEdge.RIGHT);
    }
    DateTickUnit unit = getTickUnit();

    // nextStandardDate is adding to the min which makes no sense, so just call previous
    Date tickDate = previousStandardDate(getMinimumDate(), unit);
    Date upperDate = getMaximumDate();
    while (!tickDate.after(upperDate)) {

        if (!isHiddenValue(tickDate.getTime())) {
            // work out the value, label and position
            String tickLabel;
            if (formatter != null) {
                tickLabel = formatter.format(tickDate);
            } else {
                tickLabel = this.getTickUnit().dateToString(tickDate);
            }
            TextAnchor anchor = null;
            TextAnchor rotationAnchor = null;
            double angle = 0.0;
            if (isVerticalTickLabels()) {
                anchor = TextAnchor.BOTTOM_CENTER;
                rotationAnchor = TextAnchor.BOTTOM_CENTER;
                // RectangeEdge.RIGHT
                angle = Math.PI / 2.0;
            } else {
                // RectangeEdge.RIGHT
                anchor = TextAnchor.CENTER_LEFT;
                rotationAnchor = TextAnchor.CENTER_LEFT;
            }

            DateTick tick = new DateTick(tickDate, tickLabel, anchor, rotationAnchor, angle);
            result.add(tick);
            tickDate = unit.addToDate(tickDate);
        } else {
            tickDate = unit.rollDate(tickDate);
        }
    }

    return result;
}

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