ValueImpl.java
/* ========================================================================
* 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/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.style;
import java.util.Objects;
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.font.UFontFace;
import net.sourceforge.plantuml.klimt.geom.HorizontalAlignment;
public class ValueImpl implements Value {
private final DarkString value;
public static ValueImpl dark(String value, AutomaticCounter counter) {
return new ValueImpl(new DarkString(null, Objects.requireNonNull(value), Specificity.atOrder(counter.getNextInt())));
}
public static ValueImpl regular(String value, AutomaticCounter counter) {
return new ValueImpl(new DarkString(Objects.requireNonNull(value), null, Specificity.atOrder(counter.getNextInt())));
}
public static ValueImpl regular(String value, Specificity specificity) {
return new ValueImpl(new DarkString(Objects.requireNonNull(value), null, specificity));
}
/**
* A value that may already carry both a light and a dark half at an explicit specificity --
* unlike {@link #regular} and {@link #dark}, which always create a one-sided value from a
* counter. Used when converting an already-resolved
* {@code net.sourceforge.plantuml.style.parser2.PrioritizedValue} (light and dark already
* folded together by {@code MergedStyleNode#mergeRule}) back into this legacy representation,
* so that fold is not redone here. Either {@code light} or {@code dark} (never both) may be
* null.
*/
public static ValueImpl of(String light, String dark, Specificity specificity) {
return new ValueImpl(new DarkString(light, dark, specificity));
}
public Value mergeWith(Value other) {
if (other == null)
return this;
if (other instanceof ValueImpl)
return new ValueImpl(value.mergeWith(((ValueImpl) other).value));
if (other instanceof ValueColor) {
if (other.getSpecificity().isBiggerThan(getSpecificity()))
return other;
return this;
}
throw new UnsupportedOperationException();
}
private ValueImpl(DarkString value) {
this.value = value;
}
public Value withAncestorRank(int rank) {
return new ValueImpl(value.withAncestorRank(rank));
}
public Value withStereotypeCount(int count) {
return new ValueImpl(value.withStereotypeCount(count));
}
@Override
public String toString() {
return value.toString();
}
public String asString() {
return value.getValue1();
}
public HColor asColor(HColorSet set) {
final String value1 = value.getValue1();
if ("none".equalsIgnoreCase(value1))
return HColors.transparent();
if ("transparent".equalsIgnoreCase(value1))
return HColors.transparent();
if (value1 == null)
throw new IllegalArgumentException(value.toString());
final HColor result = set.getColorOrWhite(value1);
if (value.getValue2() != null) {
final HColor dark = set.getColorOrWhite(value.getValue2());
return result.withDark(dark);
}
return result;
}
@Override
public boolean asBoolean() {
return "true".equalsIgnoreCase(value.getValue1());
}
private int asIntCache = Integer.MIN_VALUE;
private int asIntButMinusOneIfErrorCache = Integer.MIN_VALUE;
private double asDoubleCache = Double.MIN_VALUE;
@Override
public int asInt() {
if (asIntCache == Integer.MIN_VALUE) {
final String s = extractDigits();
if (s.length() == 0)
asIntCache = 0;
else
asIntCache = Integer.parseInt(s);
}
return asIntCache;
}
@Override
public int asIntButMinusOneIfError() {
if (asIntButMinusOneIfErrorCache == Integer.MIN_VALUE) {
final String s = extractDigits();
if (s.length() == 0)
asIntButMinusOneIfErrorCache = -1;
else
asIntButMinusOneIfErrorCache = Integer.parseInt(s);
}
return asIntButMinusOneIfErrorCache;
}
private String extractDigits() {
final String s = value.getValue1();
final StringBuilder sb = new StringBuilder(s.length());
for (int i = 0; i < s.length(); i++) {
final char c = s.charAt(i);
if (c >= '0' && c <= '9')
sb.append(c);
}
return sb.toString();
}
public double asDouble() {
if (asDoubleCache == Double.MIN_VALUE) {
final String s = value.getValue1();
final StringBuilder sb = new StringBuilder(s.length());
for (int i = 0; i < s.length(); i++) {
final char c = s.charAt(i);
if (c >= '0' && c <= '9' || c == '.')
sb.append(c);
}
if (sb.length() == 0)
asDoubleCache = Double.NaN;
else
asDoubleCache = Double.parseDouble(sb.toString());
}
return asDoubleCache;
}
public double asDoubleDefaultTo(double defaultValue) {
final double s = asDouble();
if (s == Double.NaN)
return defaultValue;
return s;
}
public UFontFace asFontFace() {
final String raw = value.getValue1();
if (raw == null || raw.isEmpty())
return UFontFace.normal();
final String s = raw.trim().toLowerCase();
if ("bold".equals(s))
return UFontFace.bold();
if ("italic".equals(s))
return UFontFace.italic();
if ("plain".equals(s) || "normal".equals(s))
return UFontFace.normal();
// Try parsing as a CSS numeric weight (100-900)
final UFontFace fromCss = UFontFace.fromCssWeight(s);
if (fromCss != null)
return fromCss;
return UFontFace.normal();
}
public HorizontalAlignment asHorizontalAlignment() {
return HorizontalAlignment.fromString(asString());
}
public Specificity getSpecificity() {
return value.getSpecificity();
}
}