Examples with DateRange org.jfree.data.time.DateRange used on opensource projects

Example 26 with DateRange

use of org.jfree.data.time.DateRange in project seng438-a3-R41Ryan by seng438-winter-2022.

the class DateAxis method setMaximumDate.

/**
 * Sets the maximum date visible on the axis and sends an
 * {@link AxisChangeEvent} to all registered listeners.  If
 * <code>maximumDate</code> is on or before the current minimum date for
 * the axis, the minimum date will be shifted to preserve the current
 * length of the axis.
 *
 * @param maximumDate  the date (<code>null</code> not permitted).
 *
 * @see #getMinimumDate()
 * @see #setMinimumDate(Date)
 */
public void setMaximumDate(Date maximumDate) {
    ParamChecks.nullNotPermitted(maximumDate, "maximumDate");
    // check the new maximum date relative to the current minimum date
    Date minDate = getMinimumDate();
    long minMillis = minDate.getTime();
    long newMaxMillis = maximumDate.getTime();
    if (minMillis >= newMaxMillis) {
        Date oldMax = getMaximumDate();
        long length = oldMax.getTime() - minMillis;
        minDate = new Date(newMaxMillis - length);
    }
    setRange(new DateRange(minDate, maximumDate), true, false);
    fireChangeEvent();
}

Example 27 with DateRange

use of org.jfree.data.time.DateRange in project seng438-a3-R41Ryan by seng438-winter-2022.

the class DateAxis method estimateMaximumTickLabelHeight.

/**
 * Estimates the maximum width of the tick labels, assuming the specified
 * tick unit is used.
 * <P>
 * Rather than computing the string bounds of every tick on the axis, we
 * just look at two values: the lower bound and the upper bound for the
 * axis.  These two values will usually be representative.
 *
 * @param g2  the graphics device.
 * @param unit  the tick unit to use for calculation.
 *
 * @return The estimated maximum width of the tick labels.
 */
private double estimateMaximumTickLabelHeight(Graphics2D g2, DateTickUnit unit) {
    RectangleInsets tickLabelInsets = getTickLabelInsets();
    double result = tickLabelInsets.getTop() + tickLabelInsets.getBottom();
    Font tickLabelFont = getTickLabelFont();
    FontRenderContext frc = g2.getFontRenderContext();
    LineMetrics lm = tickLabelFont.getLineMetrics("ABCxyz", frc);
    if (!isVerticalTickLabels()) {
        // all tick labels have the same width (equal to the height of
        // the font)...
        result += lm.getHeight();
    } else {
        // look at lower and upper bounds...
        DateRange range = (DateRange) getRange();
        Date lower = range.getLowerDate();
        Date upper = range.getUpperDate();
        String lowerStr, upperStr;
        DateFormat formatter = getDateFormatOverride();
        if (formatter != null) {
            lowerStr = formatter.format(lower);
            upperStr = formatter.format(upper);
        } else {
            lowerStr = unit.dateToString(lower);
            upperStr = unit.dateToString(upper);
        }
        FontMetrics fm = g2.getFontMetrics(tickLabelFont);
        double w1 = fm.stringWidth(lowerStr);
        double w2 = fm.stringWidth(upperStr);
        result += Math.max(w1, w2);
    }
    return result;
}

Example 28 with DateRange

use of org.jfree.data.time.DateRange in project seng438-a3-R41Ryan by seng438-winter-2022.

the class DateAxis method java2DToValue.

/**
 * Translates a Java2D coordinate into the corresponding data value.  To
 * perform this translation, you need to know the area used for plotting
 * data, and which edge the axis is located on.
 *
 * @param java2DValue  the coordinate in Java2D space.
 * @param area  the rectangle (in Java2D space) where the data is to be
 *              plotted.
 * @param edge  the axis location.
 *
 * @return A data value.
 */
@Override
public double java2DToValue(double java2DValue, Rectangle2D area, RectangleEdge edge) {
    DateRange range = (DateRange) getRange();
    double axisMin = this.timeline.toTimelineValue(range.getLowerMillis());
    double axisMax = this.timeline.toTimelineValue(range.getUpperMillis());
    double min = 0.0;
    double max = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        min = area.getX();
        max = area.getMaxX();
    } else if (RectangleEdge.isLeftOrRight(edge)) {
        min = area.getMaxY();
        max = area.getY();
    }
    double result;
    if (isInverted()) {
        result = axisMax - ((java2DValue - min) / (max - min) * (axisMax - axisMin));
    } else {
        result = axisMin + ((java2DValue - min) / (max - min) * (axisMax - axisMin));
    }
    return this.timeline.toMillisecond((long) result);
}

Example 29 with DateRange

use of org.jfree.data.time.DateRange in project seng438-a3-R41Ryan by seng438-winter-2022.

the class DateAxis method valueToJava2D.

/**
 * Translates the data value to the display coordinates (Java 2D User Space)
 * of the chart.
 *
 * @param value  the date to be plotted.
 * @param area  the rectangle (in Java2D space) where the data is to be
 *              plotted.
 * @param edge  the axis location.
 *
 * @return The coordinate corresponding to the supplied data value.
 */
@Override
public double valueToJava2D(double value, Rectangle2D area, RectangleEdge edge) {
    value = this.timeline.toTimelineValue((long) value);
    DateRange range = (DateRange) getRange();
    double axisMin = this.timeline.toTimelineValue(range.getLowerMillis());
    double axisMax = this.timeline.toTimelineValue(range.getUpperMillis());
    double result = 0.0;
    if (RectangleEdge.isTopOrBottom(edge)) {
        double minX = area.getX();
        double maxX = area.getMaxX();
        if (isInverted()) {
            result = maxX + ((value - axisMin) / (axisMax - axisMin)) * (minX - maxX);
        } else {
            result = minX + ((value - axisMin) / (axisMax - axisMin)) * (maxX - minX);
        }
    } else if (RectangleEdge.isLeftOrRight(edge)) {
        double minY = area.getMinY();
        double maxY = area.getMaxY();
        if (isInverted()) {
            result = minY + (((value - axisMin) / (axisMax - axisMin)) * (maxY - minY));
        } else {
            result = maxY - (((value - axisMin) / (axisMax - axisMin)) * (maxY - minY));
        }
    }
    return result;
}

Example 30 with DateRange

use of org.jfree.data.time.DateRange in project seng438-a3-R41Ryan by seng438-winter-2022.

the class DateAxis method autoAdjustRange.

/**
 * Rescales the axis to ensure that all data is visible.
 */
@Override
protected void autoAdjustRange() {
    Plot plot = getPlot();
    if (plot == null) {
        // no plot, no data
        return;
    }
    if (plot instanceof ValueAxisPlot) {
        ValueAxisPlot vap = (ValueAxisPlot) plot;
        Range r = vap.getDataRange(this);
        if (r == null) {
            if (this.timeline instanceof SegmentedTimeline) {
                // Timeline hasn't method getStartTime()
                r = new DateRange(((SegmentedTimeline) this.timeline).getStartTime(), ((SegmentedTimeline) this.timeline).getStartTime() + 1);
            } else {
                r = new DateRange();
            }
        }
        long upper = this.timeline.toTimelineValue((long) r.getUpperBound());
        long lower;
        long fixedAutoRange = (long) getFixedAutoRange();
        if (fixedAutoRange > 0.0) {
            lower = upper - fixedAutoRange;
        } else {
            lower = this.timeline.toTimelineValue((long) r.getLowerBound());
            double range = upper - lower;
            long minRange = (long) getAutoRangeMinimumSize();
            if (range < minRange) {
                long expand = (long) (minRange - range) / 2;
                upper = upper + expand;
                lower = lower - expand;
            }
            upper = upper + (long) (range * getUpperMargin());
            lower = lower - (long) (range * getLowerMargin());
        }
        upper = this.timeline.toMillisecond(upper);
        lower = this.timeline.toMillisecond(lower);
        DateRange dr = new DateRange(new Date(lower), new Date(upper));
        setRange(dr, false, false);
    }
}