FxHorizontalBar.java

package com.github.lwhite1.tablesaw.plotting.fx;

import com.github.lwhite1.tablesaw.api.CategoryColumn;
import com.github.lwhite1.tablesaw.api.IntColumn;
import com.github.lwhite1.tablesaw.api.NumericColumn;
import com.github.lwhite1.tablesaw.api.ShortColumn;
import com.github.lwhite1.tablesaw.api.Table;
import com.github.lwhite1.tablesaw.columns.Column;
import javafx.collections.FXCollections;
import javafx.scene.chart.BarChart;
import javafx.scene.chart.CategoryAxis;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.scene.layout.Background;

import java.util.ArrayList;
import java.util.List;

/**
 * A JavaFx-based Horizontal bar chart
 */
public class FxHorizontalBar extends FxBuilder {

    public static BarChart<Number, String> chart(
            String title,
            Table table,
            String categoryColumnName,
            String numericColumnName) {

        CategoryColumn categoryColumn = table.categoryColumn(categoryColumnName);
        NumericColumn numericColumn = table.nCol(numericColumnName);

        return chart(title, categoryColumn, numericColumn);
    }

    public static BarChart<Number, String> chart(String title, CategoryColumn categoryColumn, NumericColumn
            numericColumn) {

        final CategoryAxis categoryAxis = getCategoryAxis(categoryColumn);
        final NumberAxis numberAxis = getNumberAxis(numericColumn);

        final BarChart<Number, String> bar = getNumberStringBarChart(title, numberAxis, categoryAxis);
        List<XYChart.Data<Number, String>> d2 = new ArrayList<>(numericColumn.size());

        for (int i = 0; i < numericColumn.size(); i++) {
            d2.add(new XYChart.Data<>(numericColumn.getFloat(i), categoryColumn.get(i)));
        }

        XYChart.Series<Number, String> series1 = getNumberStringSeries(categoryColumn, d2);

        bar.getData().addAll(series1);
        return bar;
    }

    public static BarChart<Number, String> chart(String title, ShortColumn categoryColumn, NumericColumn
            numericColumn) {

        final CategoryAxis categoryAxis = getCategoryAxis(categoryColumn);
        final NumberAxis numberAxis = getNumberAxis(numericColumn);

        final BarChart<Number, String> bar = getNumberStringBarChart(title, numberAxis, categoryAxis);
        List<XYChart.Data<Number, String>> d2 = new ArrayList<>(numericColumn.size());

        for (int i = 0; i < numericColumn.size(); i++) {
            d2.add(new XYChart.Data<>(numericColumn.getFloat(i), categoryColumn.getString(i)));
        }

        XYChart.Series<Number, String> series1 = getNumberStringSeries(categoryColumn, d2);

        bar.getData().addAll(series1);
        return bar;
    }

    public static BarChart<Number, String> chart(String title, IntColumn categoryColumn, NumericColumn numericColumn) {

        final CategoryAxis categoryAxis = getCategoryAxis(categoryColumn);
        final NumberAxis numberAxis = getNumberAxis(numericColumn);

        final BarChart<Number, String> bar = getNumberStringBarChart(title, numberAxis, categoryAxis);
        List<XYChart.Data<Number, String>> d2 = new ArrayList<>(numericColumn.size());

        for (int i = 0; i < numericColumn.size(); i++) {
            d2.add(new XYChart.Data<>(numericColumn.getFloat(i), categoryColumn.getString(i)));
        }

        XYChart.Series<Number, String> series1 = getNumberStringSeries(categoryColumn, d2);

        bar.getData().addAll(series1);
        return bar;
    }

    private static XYChart.Series<Number, String> getNumberStringSeries(Column categoryColumn, List<XYChart
            .Data<Number, String>> d2) {
        XYChart.Series<Number, String> series1 = new XYChart.Series<>(FXCollections.observableList(d2));
        series1.setName(categoryColumn.name());
        return series1;
    }

    private static BarChart<Number, String> getNumberStringBarChart(String title, NumberAxis xAxis, CategoryAxis
            yAxis) {
        final BarChart<Number, String> bar = new BarChart<>(xAxis, yAxis);
        bar.setTitle(title);
        bar.setLegendVisible(false);
        bar.setCategoryGap(0.0);
        bar.setBarGap(0.25);
        bar.setBackground(Background.EMPTY);
        bar.setHorizontalGridLinesVisible(false);
        return bar;
    }
}