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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:
*
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*
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the MIT License.
*
* See http://opensource.org/licenses/MIT
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* 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 MIT license.
*
* The generated images can then be used without any reference to the MIT 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
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*
* 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.klimt.drawing.g2d;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Area;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.awt.image.ConvolveOp;
import java.awt.image.Kernel;
import net.sourceforge.plantuml.utils.Log;
public class DriverShadowedG2d {
private ConvolveOp getConvolveOp(int blurRadius, double dpiFactor) {
final float[] elements = new float[(int) (blurRadius * blurRadius * dpiFactor)];
for (int k = 0; k < elements.length; k++) {
elements[k] = (float) (1.0 / elements.length);
}
final Kernel myKernel = new Kernel((int) (blurRadius * Math.sqrt(dpiFactor)),
(int) (blurRadius * Math.sqrt(dpiFactor)), elements);
// if EDGE_NO_OP is not selected, EDGE_ZERO_FILL is the default which
// creates a black border
return new ConvolveOp(myKernel, ConvolveOp.EDGE_NO_OP, null);
}
private final Color color = new Color(170, 170, 170);
private final Color colorLine = new Color(30, 30, 30);
protected void drawShadow(Graphics2D g2d, Shape shape, double deltaShadow, double dpiFactor) {
if (dpiFactor < 1) {
dpiFactor = 1;
}
final Rectangle2D bounds = shape.getBounds2D();
final double ww = bounds.getMaxX() - bounds.getMinX();
final double hh = bounds.getMaxY() - bounds.getMinY();
final double w = (ww + deltaShadow * 2 + 6) * dpiFactor;
final double h = (hh + deltaShadow * 2 + 6) * dpiFactor;
BufferedImage destination = null;
try {
destination = new BufferedImage((int) w, (int) h, BufferedImage.TYPE_INT_ARGB);
final Graphics2D gg = destination.createGraphics();
gg.scale(dpiFactor, dpiFactor);
gg.translate(deltaShadow - bounds.getMinX(), deltaShadow - bounds.getMinY());
final boolean isLine = shape instanceof Line2D.Double;
if (isLine) {
gg.setColor(colorLine);
gg.draw(shape);
} else {
gg.setColor(color);
gg.fill(shape);
}
gg.dispose();
final ConvolveOp simpleBlur = getConvolveOp(6, dpiFactor);
destination = simpleBlur.filter(destination, null);
} catch (OutOfMemoryError error) {
Log.info("Warning: Cannot draw shadow, image too big.");
} catch (Exception e) {
Log.info("Warning: Cannot draw shadow: " + e);
}
if (destination != null) {
final AffineTransform at = g2d.getTransform();
g2d.scale(1 / dpiFactor, 1 / dpiFactor);
g2d.drawImage(destination, (int) (bounds.getMinX() * dpiFactor), (int) (bounds.getMinY() * dpiFactor),
null);
g2d.setTransform(at);
}
}
protected void drawOnlyLineShadow(Graphics2D g2d, Shape shape, double deltaShadow, double dpiFactor) {
if (dpiFactor < 1) {
dpiFactor = 1;
}
final Rectangle2D bounds = shape.getBounds2D();
final double ww = bounds.getMaxX() - bounds.getMinX();
final double hh = bounds.getMaxY() - bounds.getMinY();
final double w = (ww + deltaShadow * 2 + 6) * dpiFactor;
final double h = (hh + deltaShadow * 2 + 6) * dpiFactor;
BufferedImage destination = null;
try {
destination = new BufferedImage((int) w, (int) h, BufferedImage.TYPE_INT_ARGB);
final Graphics2D gg = destination.createGraphics();
gg.scale(dpiFactor, dpiFactor);
gg.translate(deltaShadow - bounds.getMinX(), deltaShadow - bounds.getMinY());
gg.draw(shape);
gg.dispose();
final ConvolveOp simpleBlur = getConvolveOp(6, dpiFactor);
destination = simpleBlur.filter(destination, null);
} catch (OutOfMemoryError error) {
Log.info("Warning: Cannot draw shadow, image too big.");
} catch (Exception e) {
Log.info("Warning: Cannot draw shadow: " + e);
}
if (destination != null) {
final AffineTransform at = g2d.getTransform();
g2d.scale(1 / dpiFactor, 1 / dpiFactor);
g2d.drawImage(destination, (int) (bounds.getMinX() * dpiFactor), (int) (bounds.getMinY() * dpiFactor),
null);
g2d.setTransform(at);
}
}
protected void drawOnlyLineShadowSpecial(Graphics2D g2d, Shape shape, double deltaShadow, double dpiFactor) {
if (dpiFactor < 1) {
dpiFactor = 1;
}
final Rectangle2D bounds = shape.getBounds2D();
final double ww = bounds.getMaxX() - bounds.getMinX();
final double hh = bounds.getMaxY() - bounds.getMinY();
final double w = (ww + deltaShadow * 2 + 6) * dpiFactor;
final double h = (hh + deltaShadow * 2 + 6) * dpiFactor;
BufferedImage destination = null;
try {
destination = new BufferedImage((int) w, (int) h, BufferedImage.TYPE_INT_ARGB);
final Graphics2D gg = destination.createGraphics();
gg.scale(dpiFactor, dpiFactor);
gg.translate(deltaShadow - bounds.getMinX(), deltaShadow - bounds.getMinY());
gg.draw(shape);
gg.dispose();
final ConvolveOp simpleBlur = getConvolveOp(6, dpiFactor);
destination = simpleBlur.filter(destination, null);
} catch (OutOfMemoryError error) {
Log.info("Warning: Cannot draw shadow, image too big.");
} catch (Exception e) {
Log.info("Warning: Cannot draw shadow: " + e);
}
if (destination != null) {
final AffineTransform at = g2d.getTransform();
g2d.scale(1 / dpiFactor, 1 / dpiFactor);
final Shape sav = g2d.getClip();
final Area full = new Area(
new Rectangle2D.Double(0, 0, (bounds.getMaxX() + deltaShadow * 2 + 6) * dpiFactor,
(bounds.getMaxY() + deltaShadow * 2 + 6) * dpiFactor));
if (dpiFactor == 1) {
full.subtract(new Area(shape));
} else {
full.subtract(
new Area(shape).createTransformedArea(AffineTransform.getScaleInstance(dpiFactor, dpiFactor)));
}
g2d.setClip(full);
g2d.drawImage(destination, (int) (bounds.getMinX() * dpiFactor), (int) (bounds.getMinY() * dpiFactor),
null);
g2d.setClip(sav);
g2d.setTransform(at);
}
}
}