Example usage for org.jfree.chart.annotations XYAnnotation XYAnnotation

Introduction

In this page you can find the example usage for org.jfree.chart.annotations XYAnnotation XYAnnotation.

Prototype

XYAnnotation

Source Link

Usage

From source file:org.knime.knip.core.ui.imgviewer.panels.HistogramBC.java

private XYAnnotation slopeLine() {
    return new XYAnnotation() {

        private double x1, y1, x2, y2;

        @Override/*from w ww  .  j  a  v a2  s. com*/
        public void removeChangeListener(final AnnotationChangeListener listener) {
            // ignore
        }

        @Override
        public void addChangeListener(final AnnotationChangeListener listener) {
            // ignore
        }

        @Override
        public void draw(final Graphics2D g2, final XYPlot plot, final Rectangle2D dataArea,
                final ValueAxis domainAxis, final ValueAxis rangeAxis, final int rendererIndex,
                final PlotRenderingInfo info) {
            calcLineCoords(dataArea);
            drawLine(g2);
        }

        private void drawLine(final Graphics2D g2) {
            final Color origColor = g2.getColor();
            g2.setColor(Color.black);
            g2.drawLine((int) x1, (int) y1, (int) x2, (int) y2);
            g2.setColor(Color.lightGray);
            g2.drawLine((int) x1, 0, (int) x1, 192);
            g2.drawLine((int) x2, 0, (int) x2, 192);
            g2.setColor(origColor);
        }

        @SuppressWarnings("synthetic-access")
        private void calcLineCoords(final Rectangle2D rect) {
            // offset necessary since chart is not drawn on whole rectangle
            int offset = 12;
            final double x = rect.getMinX() + offset;
            final double y = rect.getMinY();
            final double w = rect.getWidth() - 2 * offset;
            final double h = rect.getHeight();
            final double min = bundle.getTheoreticalMin();
            final double max = bundle.getTheoreticalMax();
            final double defaultMin = bundle.getDataMin();
            final double defaultMax = bundle.getDataMax();
            final double scale = w / (defaultMax - defaultMin);
            double slope = 0.0;
            if (max != min) {
                slope = h / (max - min);
            }
            if (min >= defaultMin) {
                x1 = scale * (min - defaultMin);
                y1 = h;
            } else {
                x1 = 0;
                if (max > min) {
                    y1 = h - ((defaultMin - min) * slope);
                } else {
                    y1 = h;
                }
            }
            if (max <= defaultMax) {
                x2 = (scale * (max - defaultMin));
                y2 = 0;
            } else {
                x2 = w;
                if (max > min) {
                    y2 = h - ((defaultMax - min) * slope);
                } else {
                    y2 = 0;
                }
            }
            x1 += x;
            x2 += x;
            y1 += y;
            y2 += y;
        }
    };
}

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From source file:ucar.unidata.idv.control.chart.TimeSeriesChart.java

/**
 * Show time/*w w  w.  j  a  v a 2s. com*/
 *
 * @param value show time
 */
public void showAnimationTime(boolean value) {
    this.showAnimationTime = value;
    if (animationTimeAnnotation == null) {
        animationTimeAnnotation = new XYAnnotation() {
            public void draw(Graphics2D g2, XYPlot plot, Rectangle2D dataArea, ValueAxis domainAxis,
                    ValueAxis rangeAxis, int rendererIndex, PlotRenderingInfo info) {
                if (showAnimationTime) {
                    drawTime(g2, plot, dataArea, domainAxis, rangeAxis, rendererIndex, info);
                }
            }

            @Override
            public void addChangeListener(AnnotationChangeListener arg0) {
            }

            @Override
            public void removeChangeListener(AnnotationChangeListener arg0) {
            }
        };
        List plots = getPlots();
        for (int plotIdx = 0; plotIdx < plots.size(); plotIdx++) {
            ChartHolder chartHolder = (ChartHolder) plots.get(plotIdx);
            ((XYPlot) chartHolder.getPlot()).addAnnotation(animationTimeAnnotation);
        }
    }
}

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From source file:ucar.unidata.idv.control.chart.XYChartManager.java

/**
 * Set the label to use when we have an empty chart
 *
 * @param label empty chart label//from ww  w  .j  a  v a  2s. co m
 */
public void setEmptyChartLabel(String label) {
    boolean signalChange = !Misc.equals(emptyChartLabel, label);
    if (emptyChartAnnotation == null) {
        signalChange = true;
        emptyChartAnnotation = new XYAnnotation() {
            public void draw(Graphics2D g2, XYPlot plot, Rectangle2D dataArea, ValueAxis domainAxis,
                    ValueAxis rangeAxis, int rendererIndex, PlotRenderingInfo info) {
                if (!hasStuff()) {
                    g2.setColor(Color.black);
                    g2.drawString(emptyChartLabel, 100, 50);
                }
            }

            @Override
            public void addChangeListener(AnnotationChangeListener arg0) {
            }

            @Override
            public void removeChangeListener(AnnotationChangeListener arg0) {
            }
        };
        for (int plotIdx = 0; plotIdx < chartHolders.size(); plotIdx++) {
            ChartHolder chartHolder = (ChartHolder) chartHolders.get(plotIdx);
            ((XYPlot) chartHolder.getPlot()).addAnnotation(emptyChartAnnotation);
        }
    }
    emptyChartLabel = label;
    if (signalChange) {
        signalChartChanged();
    }
}

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