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PlantUML is a component that allows to quickly write diagrams from text.
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
* |
* | PlantUML : a free UML diagram generator
* |
* +=======================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
*
* Project Info: https://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* https://plantuml.com/patreon (only 1$ per month!)
* https://plantuml.com/liberapay (only 1€ per month!)
* https://plantuml.com/paypal
*
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License V2.
*
* THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
* LICENSE ("AGREEMENT"). [GNU General Public License V2]
*
* ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
* RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
*
* You may obtain a copy of the License at
*
* https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* PlantUML can occasionally display sponsored or advertising messages. Those
* messages are usually generated on welcome or error images and never on
* functional diagrams.
* See https://plantuml.com/professional if you want to remove them
*
* Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
* are owned by the author of their corresponding sources code (that is, their
* textual description in PlantUML language). Those images are not covered by
* this GPL v2 license.
*
* The generated images can then be used without any reference to the GPL v2 license.
* It is not even necessary to stipulate that they have been generated with PlantUML,
* although this will be appreciated by the PlantUML team.
*
* There is an exception : if the textual description in PlantUML language is also covered
* by any license, then the generated images are logically covered
* by the very same license.
*
* This is the IGY distribution (Install GraphViz by Yourself).
* You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
* (see https://plantuml.com/graphviz-dot )
*
* Icons provided by OpenIconic : https://useiconic.com/open
* Archimate sprites provided by Archi : http://www.archimatetool.com
* Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
* Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
* ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
* ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
* CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
* Brotli (c) by the Brotli Authors https://github.com/google/brotli
* Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
* Twemoji (c) by Twitter at https://twemoji.twitter.com/
*
*/
package net.sourceforge.plantuml.logo;
import java.awt.Font;
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
import java.util.List;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.color.HColorSet;
import net.sourceforge.plantuml.klimt.color.HColors;
import net.sourceforge.plantuml.klimt.creole.Display;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.FontConfiguration;
import net.sourceforge.plantuml.klimt.font.UFont;
import net.sourceforge.plantuml.klimt.geom.HorizontalAlignment;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.TextBlock;
import net.sourceforge.plantuml.klimt.shape.ULine;
import net.sourceforge.plantuml.klimt.shape.UPolygon;
import net.sourceforge.plantuml.klimt.sprite.SpriteContainerEmpty;
class TurtleGraphicsPane {
final private double width;
final private double height;
private double x;
private double y;
private double turtleDirection = 90;
private boolean penIsDown = true;
private boolean showTurtle = true;
private HColor penColor = HColors.BLACK;
private List lines = new ArrayList();
private List colors = new ArrayList<>();
private String message;
public TurtleGraphicsPane(int width, int height) {
this.width = width;
this.height = height;
clearScreen();
}
public void clearScreen() {
x = width / 2;
y = -height / 2;
turtleDirection = 90;
lines.clear();
colors.clear();
}
private double dtor(double degrees) {
return degrees * Math.PI / 180.0;
}
private void drawTurtle(UGraphic ug) {
if (showTurtle == false) {
return;
}
final UPolygon poly = new UPolygon();
double size = 2;
double deltax = 4.5 * size;
poly.addPoint(0 * size - deltax, 0);
poly.addPoint(0 * size - deltax, -2 * size);
poly.addPoint(1 * size - deltax, -2 * size);
poly.addPoint(1 * size - deltax, -4 * size);
poly.addPoint(2 * size - deltax, -4 * size);
poly.addPoint(2 * size - deltax, -6 * size);
poly.addPoint(3 * size - deltax, -6 * size);
poly.addPoint(3 * size - deltax, -8 * size);
poly.addPoint(4 * size - deltax, -8 * size);
poly.addPoint(4 * size - deltax, -9 * size);
poly.addPoint(5 * size - deltax, -9 * size);
poly.addPoint(5 * size - deltax, -8 * size);
poly.addPoint(6 * size - deltax, -8 * size);
poly.addPoint(6 * size - deltax, -6 * size);
poly.addPoint(7 * size - deltax, -6 * size);
poly.addPoint(7 * size - deltax, -4 * size);
poly.addPoint(8 * size - deltax, -4 * size);
poly.addPoint(8 * size - deltax, -2 * size);
poly.addPoint(9 * size - deltax, -2 * size);
poly.addPoint(9 * size - deltax, 0);
poly.addPoint(0 * size - deltax, 0);
final double angle = -dtor(turtleDirection - 90);
poly.rotate(angle);
// ug.setAntiAliasing(false);
final HColorSet htmlColorSet = HColorSet.instance();
final HColor turtleColor1 = htmlColorSet.getColorOrWhite("OliveDrab");
final HColor turtleColor2 = htmlColorSet.getColorOrWhite("MediumSpringGreen");
ug.apply(turtleColor1).apply(turtleColor2.bg()).apply(new UTranslate(x, -y)).draw(poly);
// ug.setAntiAliasing(true);
}
public void showTurtle() {
showTurtle = true;
}
public void hideTurtle() {
showTurtle = false;
}
public void setPenColor(HColor newPenColor) {
penColor = newPenColor;
}
void addLine(double x1, double y1, double x2, double y2) {
lines.add(new Rectangle2D.Double(x1, y1, x2, y2));
colors.add(penColor);
}
public void forward(double distance) {
double angle = dtor(turtleDirection);
double newX = x + distance * Math.cos(angle);
double newY = y + distance * Math.sin(angle);
if (penIsDown) {
addLine(x, y, newX, newY);
x = newX;
y = newY;
} else {
x = newX;
y = newY;
}
}
public void back(double distance) {
forward(-distance);
}
public void left(double turnAngle) {
turtleDirection += turnAngle;
while (turtleDirection > 360) {
turtleDirection -= 360;
}
while (turtleDirection < 0) {
turtleDirection += 360;
}
}
public void right(double turnAngle) {
left(-turnAngle);
}
public void penUp() {
penIsDown = false;
}
public void penDown() {
penIsDown = true;
}
public void paint(UGraphic ug) {
int n = lines.size();
for (int i = 0; i < n; i++) {
final HColor color = colors.get(i);
final Rectangle2D.Double r = lines.get(i);
final ULine line = new ULine(r.width - r.x, -r.height + r.y);
ug.apply(color).apply(new UTranslate(r.x, -r.y)).draw(line);
}
drawTurtle(ug);
if (message != null) {
final FontConfiguration font = FontConfiguration.blackBlueTrue(UFont.build("", Font.PLAIN, 14));
final TextBlock text = Display.create(message).create(font, HorizontalAlignment.LEFT,
new SpriteContainerEmpty());
final XDimension2D dim = text.calculateDimension(ug.getStringBounder());
final double textHeight = dim.getHeight();
text.drawU(ug.apply(UTranslate.dy((height - textHeight))));
}
}
public void message(String messageText) {
this.message = messageText;
}
}