tech.tablesaw.plotly.components.Margin Maven / Gradle / Ivy

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package tech.tablesaw.plotly.components;

import com.mitchellbosecke.pebble.error.PebbleException;
import com.mitchellbosecke.pebble.template.PebbleTemplate;

import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;
import java.util.HashMap;
import java.util.Map;

/**
 * The margin for the plot
 */
public class Margin extends Component {

    /**
     * The left margin, in px
     */
    private final int left;

    /**
     * The right margin, in px
     */
    private final int right;

    /**
     * The top margin, in px
     */
    private final int top;


    /**
     * The bottom margin, in px
     */
    private final int bottom;

    /**
     * The amount of padding between the plotting area and the axis lines, in px
     */
    private final int pad;

    private final boolean autoExpand;

    public static MarginBuilder builder() {
        return new MarginBuilder();
    }

    private Margin(MarginBuilder builder) {
        this.left = builder.left;
        this.right = builder.right;
        this.top = builder.top;
        this.bottom = builder.bottom;
        this.pad = builder.pad;
        this.autoExpand = builder.autoExpand;
    }

    public String asJavascript() {
        Writer writer = new StringWriter();
        PebbleTemplate compiledTemplate;

        try {
            compiledTemplate = engine.getTemplate("margin_template.html");
            compiledTemplate.evaluate(writer, getContext());
        } catch (PebbleException | IOException e) {
            e.printStackTrace();
        }
        return writer.toString();
    }

    private Map getContext() {
        Map context = new HashMap<>();
        context.put("top", top);
        context.put("bottom", bottom);
        context.put("right", right);
        context.put("left", left);
        context.put("pad", pad);
        context.put("autoExpand", autoExpand);
        return context;
    }

    public static class MarginBuilder {
        /**
         * The left margin, in px
         */
        private int left = 80;

        /**
         * The right margin, in px
         */
        private int right = 80;

        /**
         * The top margin, in px
         */
        private int top = 100;

        /**
         * The bottom margin, in px
         */
        private int bottom = 80;

        /**
         * The amount of padding between the plotting area and the axis lines, in px
         */
        private int pad = 0;

        private boolean autoExpand = true;

        private MarginBuilder() {}

        public MarginBuilder top(int top) {
            this.top = top;
            return this;
        }

        public MarginBuilder bottom(int bottom) {
            this.bottom = bottom;
            return this;
        }

        public MarginBuilder left(int left) {
            this.left = left;
            return this;
        }

        public MarginBuilder right(int right) {
            this.right = right;
            return this;
        }

        public MarginBuilder padding(int padding) {
            this.pad = padding;
            return this;
        }

        public MarginBuilder autoExpand(boolean autoExpand) {
            this.autoExpand = autoExpand;
            return this;
        }

        public Margin build() {
            return new Margin(this);
        }
    }
}