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package org.netbeans.lib.profiler.ui.charts;

import java.awt.Color;
import java.util.Iterator;
import java.util.Vector;

 * @author Jiri Sedlacek
00052 public abstract class AbstractSynchronousXYChartModel implements SynchronousXYChartModel {
    //~ Instance fields ----------------------------------------------------------------------------------------------------------

    private Vector listeners; // Data change listeners

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    public abstract int getItemCount(); // number of collected items

    public abstract long getMaxXValue(); // maximum (last) value on the horizontal axis (valid for all series)

    public abstract long getMaxYValue(int seriesIndex); // maximum values on the vertical axis for one series

    public abstract long getMinXValue(); // minimum (first) value on the horizontal axis (valid for all series)

    public abstract long getMinYValue(int seriesIndex); // minimum values on the vertical axis for one series

    public abstract Color getSeriesColor(int seriesIndex); // color of data series

    // --- Abstract XYChartModel -------------------------------------------------
    public abstract int getSeriesCount(); // number of tracked data series

    public abstract String getSeriesName(int seriesIndex); // name of data series

    public abstract long getXValue(int itemIndex); // x value of the item (valid for all series)

    public abstract long getYValue(int itemIndex, int seriesIndex); // y values of the item for one series

    public Color getLimitYColor() {
        return Color.WHITE;

    public long getLimitYValue() {
        return Long.MAX_VALUE;

    // TODO: will be moved to chart axis definition
    public long getMaxDisplayYValue(int seriesIndex) {
        return getMaxYValue(seriesIndex);
    } // value to be displayed at the top of the chart

    // TODO: will be moved to chart axis definition
    public long getMinDisplayYValue(int seriesIndex) {
        return getMinYValue(seriesIndex);
    } // value to be displayed at the bottom of the chart

    // --- Listeners -------------------------------------------------------------

     * Adds new ChartModel listener.
     * @param listener ChartModel listener to add
00104     public synchronized void addChartModelListener(ChartModelListener listener) {
        if (listeners == null) {
            listeners = new Vector();

        if (!listeners.contains(listener)) {

     * Removes ChartModel listener.
     * @param listener ChartModel listener to remove
00118     public synchronized void removeChartModelListener(ChartModelListener listener) {
        if (listeners != null) {

     * Notifies all listeners about the data change.
00127     protected void fireChartDataChanged() {
        if (listeners == null) {

        Vector toNotify;

        synchronized (this) {
            toNotify = ((Vector) listeners.clone());

        Iterator iterator = toNotify.iterator();

        while (iterator.hasNext()) {
            ((ChartModelListener) iterator.next()).chartDataChanged();

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