/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2017, Arnaud Roques
*
* Project Info: http://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* http://plantuml.com/patreon (only 1$ per month!)
* http://plantuml.com/paypal
*
* This file is part of PlantUML.
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PlantUML distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*
* Original Author: Arnaud Roques
*
*
*/
package net.sourceforge.plantuml.eggs;
import java.awt.geom.Dimension2D;
import java.awt.geom.Point2D;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import net.sourceforge.plantuml.AbstractPSystem;
import net.sourceforge.plantuml.BackSlash;
import net.sourceforge.plantuml.FileFormatOption;
import net.sourceforge.plantuml.SpriteContainerEmpty;
import net.sourceforge.plantuml.core.DiagramDescription;
import net.sourceforge.plantuml.core.ImageData;
import net.sourceforge.plantuml.cucadiagram.Display;
import net.sourceforge.plantuml.graphic.FontConfiguration;
import net.sourceforge.plantuml.graphic.HorizontalAlignment;
import net.sourceforge.plantuml.graphic.HtmlColor;
import net.sourceforge.plantuml.graphic.HtmlColorSetSimple;
import net.sourceforge.plantuml.graphic.HtmlColorSimple;
import net.sourceforge.plantuml.graphic.HtmlColorUtils;
import net.sourceforge.plantuml.graphic.StringBounder;
import net.sourceforge.plantuml.graphic.TextBlock;
import net.sourceforge.plantuml.graphic.UDrawable;
import net.sourceforge.plantuml.ugraphic.ColorMapperIdentity;
import net.sourceforge.plantuml.ugraphic.ImageBuilder;
import net.sourceforge.plantuml.ugraphic.UChangeBackColor;
import net.sourceforge.plantuml.ugraphic.UChangeColor;
import net.sourceforge.plantuml.ugraphic.UFont;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.UPolygon;
import net.sourceforge.plantuml.ugraphic.URectangle;
import net.sourceforge.plantuml.ugraphic.UTranslate;
// http://www.redblobgames.com/grids/hexagons/
public class PSystemColors extends AbstractPSystem implements UDrawable {
private final double rectangleHeight = 28;
private final double rectangleWidth = 175;
private final HtmlColorSetSimple colors = new HtmlColorSetSimple();
private final String paletteCentralColor;
private final double size = 60;
public PSystemColors(String option) {
if (option == null) {
this.paletteCentralColor = null;
} else {
this.paletteCentralColor = option.replaceAll("\\#", "");
}
}
@Override
final protected ImageData exportDiagramNow(OutputStream os, int num, FileFormatOption fileFormat, long seed)
throws IOException {
final ImageBuilder imageBuilder = new ImageBuilder(new ColorMapperIdentity(), 1.0, HtmlColorUtils.WHITE,
getMetadata(), null, 0, 0, null, false);
imageBuilder.setUDrawable(this);
return imageBuilder.writeImageTOBEMOVED(fileFormat, seed, os);
}
public DiagramDescription getDescription() {
return new DiagramDescription("(Colors)");
}
public void drawU(UGraphic ug) {
if (colors.getColorIfValid(paletteCentralColor) instanceof HtmlColorSimple) {
drawPalette(ug);
} else {
drawFull(ug);
}
}
private void drawPalette(UGraphic ug) {
double x = (centerHexa(2, 0).getX() + centerHexa(3, 0).getX()) / 2;
double y = centerHexa(0, 2).getY() + corner(1).getY();
ug = ug.apply(new UTranslate(x, y));
final UPolygon hexa = getHexa();
final List friends = getColorsCloseTo(paletteCentralColor);
int idx = 0;
drawOneHexa(ug, friends.get(idx++), 0, 0, hexa);
drawOneHexa(ug, friends.get(idx++), 1, 0, hexa);
drawOneHexa(ug, friends.get(idx++), 0, 1, hexa);
drawOneHexa(ug, friends.get(idx++), -1, 1, hexa);
drawOneHexa(ug, friends.get(idx++), -1, 0, hexa);
drawOneHexa(ug, friends.get(idx++), -1, -1, hexa);
drawOneHexa(ug, friends.get(idx++), 0, -1, hexa);
drawOneHexa(ug, friends.get(idx++), 2, 0, hexa);
drawOneHexa(ug, friends.get(idx++), 1, 1, hexa);
drawOneHexa(ug, friends.get(idx++), 1, 2, hexa);
drawOneHexa(ug, friends.get(idx++), 0, 2, hexa);
drawOneHexa(ug, friends.get(idx++), -1, 2, hexa);
drawOneHexa(ug, friends.get(idx++), -2, 1, hexa);
drawOneHexa(ug, friends.get(idx++), -2, 0, hexa);
drawOneHexa(ug, friends.get(idx++), -2, -1, hexa);
drawOneHexa(ug, friends.get(idx++), -1, -2, hexa);
drawOneHexa(ug, friends.get(idx++), 0, -2, hexa);
drawOneHexa(ug, friends.get(idx++), 1, -2, hexa);
drawOneHexa(ug, friends.get(idx++), 1, -1, hexa);
}
private Point2D centerHexa(int i, int j) {
final double width = getWidth();
final double x = width * i + (j % 2 == 0 ? 0 : width / 2);
final double y = size * j * 1.5;
return new Point2D.Double(x, y);
}
private double getWidth() {
return Math.sqrt(3) / 2 * 2 * size;
}
private void drawOneHexa(UGraphic ug, String colorName, int i, int j, UPolygon hexa) {
final HtmlColorSimple color = (HtmlColorSimple) colors.getColorIfValid(colorName);
ug = applyColor(ug, color);
ug = ug.apply(new UTranslate(centerHexa(i, j)));
ug.draw(hexa);
final UFont font = UFont.sansSerif(14).bold();
TextBlock tt = getTextName(font, colorName, color);
Dimension2D dimText = tt.calculateDimension(ug.getStringBounder());
if (dimText.getWidth() > getWidth()) {
tt = getTextName(font, findShortest(ug.getStringBounder(), font, colorName), color);
dimText = tt.calculateDimension(ug.getStringBounder());
}
tt.drawU(ug.apply(new UTranslate(-dimText.getWidth() / 2, -dimText.getHeight() / 2)));
}
private String findShortest(StringBounder stringBounder, UFont font, String colorName) {
String result = null;
double min = Double.MAX_VALUE;
for (int i = 1; i < colorName.length() - 1; i++) {
if (Character.isLowerCase(colorName.charAt(i))) {
continue;
}
final String candidat = colorName.substring(0, i) + BackSlash.BS_BS_N + colorName.substring(i);
final TextBlock tt = getTextName(font, candidat, (HtmlColorSimple) HtmlColorUtils.BLACK);
final double width = tt.calculateDimension(stringBounder).getWidth();
if (width < min) {
result = candidat;
min = width;
}
}
return result;
}
private UGraphic applyColor(UGraphic ug, HtmlColor color) {
return ug.apply(new UChangeColor(color)).apply(new UChangeBackColor(color));
}
private Point2D corner(int i) {
double angle_deg = 60 * i + 30;
double angle_rad = Math.PI / 180 * angle_deg;
return new Point2D.Double(size * Math.cos(angle_rad), size * Math.sin(angle_rad));
}
private UPolygon getHexa() {
final UPolygon result = new UPolygon();
for (int i = 0; i < 6; i++) {
result.addPoint(corner(i));
}
return result;
}
private List getColorsCloseTo(String other) {
final List result = new ArrayList(colors.names());
for (Iterator it = result.iterator(); it.hasNext();) {
final String candidat = it.next();
final String similar = candidat.replaceAll("Gray", "Grey");
if (candidat.equals(similar)) {
continue;
}
if (result.contains(similar)) {
it.remove();
}
}
if (containsCaseInsensitive(result, other) == false) {
result.add(other);
}
Collections.sort(result, closeComparator(paletteCentralColor));
return result;
}
private boolean containsCaseInsensitive(Collection source, String target) {
for (String s : source) {
if (s.equalsIgnoreCase(target)) {
return true;
}
}
return false;
}
private Comparator closeComparator(String center) {
final HtmlColorSimple centerColor = (HtmlColorSimple) colors.getColorIfValid(center);
return new Comparator() {
public int compare(String col1, String col2) {
final double dist1 = centerColor.distance((HtmlColorSimple) colors.getColorIfValid(col1));
final double dist2 = centerColor.distance((HtmlColorSimple) colors.getColorIfValid(col2));
return (int) Math.signum(dist1 - dist2);
}
};
}
private void drawFull(UGraphic ug) {
final UFont font = UFont.sansSerif(14).bold();
ug = ug.apply(new UChangeColor(HtmlColorUtils.BLACK));
int i = 0;
int j = 0;
for (String name : colors.names()) {
UGraphic tmp = getPositioned(ug, i, j);
final HtmlColorSimple color = (HtmlColorSimple) colors.getColorIfValid(name);
applyColor(tmp, color).draw(new URectangle(rectangleWidth, rectangleHeight));
final TextBlock tt = getTextName(font, name, color);
final Dimension2D dimText = tt.calculateDimension(ug.getStringBounder());
final double dy = (rectangleHeight - dimText.getHeight()) / 2;
final double dx = (rectangleWidth - dimText.getWidth()) / 2;
tt.drawU(tmp.apply(new UTranslate(dx, dy)));
if (j++ == 20) {
j = 0;
i++;
}
}
}
private TextBlock getTextName(final UFont font, String name, final HtmlColorSimple color) {
final HtmlColorSimple opposite = color.opposite();
final FontConfiguration fc = new FontConfiguration(font, opposite, HtmlColorUtils.BLUE, true);
final TextBlock tt = Display.getWithNewlines(name).create(fc, HorizontalAlignment.CENTER,
new SpriteContainerEmpty());
return tt;
}
private UGraphic getPositioned(UGraphic ug, int i, int j) {
return ug.apply(new UTranslate(rectangleWidth * i, rectangleHeight * j));
}
}
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