cdc.gv.demo.GvX11ColorsDemo Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of cdc-gv-demos Show documentation
There is a newer version: 0.100.2
package cdc.gv.demo;

import java.io.File;
import java.io.IOException;
import java.lang.reflect.Field;

import cdc.gv.GvWriter;
import cdc.gv.atts.GvEdgeAttributes;
import cdc.gv.atts.GvEdgeStyle;
import cdc.gv.atts.GvGraphAttributes;
import cdc.gv.atts.GvLabelLoc;
import cdc.gv.atts.GvNodeAttributes;
import cdc.gv.atts.GvNodeShape;
import cdc.gv.atts.GvNodeStyle;
import cdc.gv.colors.GvColor;
import cdc.gv.colors.GvX11Colors;
import cdc.gv.labels.GvHtmlLabel;
import cdc.gv.tools.GvEngine;
import cdc.gv.tools.GvFormat;
import cdc.gv.tools.GvToAny;
import cdc.util.files.Files;

/**
 * Generate a GraphViz sample file with all X11 colors.
 *
 * @author Damien Carbonne
 *
 */
public final class GvX11ColorsDemo {

    private static String getId(Field field) {
        return field.getName();
    }

    private GvX11ColorsDemo() {
    }

    public static void main(String[] args) {
        final String odir = "target";
        Files.mkdir(odir);
        final String name = odir + "/" + GvX11ColorsDemo.class.getSimpleName() + ".gv";
        try (final GvWriter writer = new GvWriter(name)) {
            final GvGraphAttributes gatts = new GvGraphAttributes();
            gatts.setLabel("X11 Colors");
            gatts.setFontSize(100.0);
            gatts.setFontName("Arial");
            gatts.setLabelLoc(GvLabelLoc.TOP);

            writer.beginGraph("test-x11-colors", true, gatts);
            final int width = (int) Math.ceil(Math.sqrt(GvX11Colors.class.getDeclaredFields().length));

            int index = 0;
            Field previous = null;
            for (final Field field : GvX11Colors.class.getDeclaredFields()) {
                if (field.getType() == GvColor.class) {
                    final int pos = index % width;
                    // System.out.println(index + " " + pos);
                    // System.out.println(field.getName());
                    final GvColor color = (GvColor) field.get(GvX11Colors.class);
                    final GvHtmlLabel label = new GvHtmlLabel();
                    label.beginFont(GvX11Colors.BLACK, null, -1);
                    label.addText(field.getName());
                    label.endFont();
                    label.addLineBreak(null);
                    label.beginFont(GvX11Colors.WHITE, null, -1);
                    label.addText(field.getName());
                    label.endFont();
                    final GvNodeAttributes natts = new GvNodeAttributes();
                    natts.setColor(GvX11Colors.BLACK);
                    natts.setFillColor(color);
                    natts.setLabel(label.toString());
                    natts.setStyle(GvNodeStyle.FILLED);
                    natts.setShape(GvNodeShape.BOX);
                    writer.addNode(getId(field), natts);
                    if (pos > 0) {
                        final GvEdgeAttributes eatts = new GvEdgeAttributes();
                        eatts.setStyle(GvEdgeStyle.INVIS);
                        writer.addEdge(getId(previous), getId(field), eatts);
                    }
                    index++;
                    previous = field;
                }
            }

            writer.endGraph();
            writer.flush();

            final GvToAny.MainArgs margs = new GvToAny.MainArgs();
            margs.setEnabled(GvToAny.MainArgs.Feature.VERBOSE, true);
            margs.input = new File(name);
            margs.outputDir = new File(odir);
            margs.engine = GvEngine.DOT;
            margs.formats.add(GvFormat.PDF);
            GvToAny.execute(margs);
            System.out.println("Done");
        } catch (final IOException | IllegalArgumentException | IllegalAccessException e) {
            e.printStackTrace();
        }
    }
}