mirror of
https://github.com/octoleo/plantuml.git
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174 lines
5.9 KiB
Java
174 lines
5.9 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2024, Arnaud Roques
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*
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* Project Info: https://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* https://plantuml.com/patreon (only 1$ per month!)
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* https://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package net.sourceforge.plantuml.klimt.shape;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.StringTokenizer;
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import net.sourceforge.plantuml.klimt.UTranslate;
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import net.sourceforge.plantuml.klimt.creole.Display;
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import net.sourceforge.plantuml.klimt.drawing.UGraphic;
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import net.sourceforge.plantuml.klimt.font.FontConfiguration;
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import net.sourceforge.plantuml.klimt.font.StringBounder;
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import net.sourceforge.plantuml.klimt.geom.HorizontalAlignment;
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import net.sourceforge.plantuml.klimt.geom.XDimension2D;
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import net.sourceforge.plantuml.klimt.sprite.SpriteContainer;
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import net.sourceforge.plantuml.regex.MyPattern;
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public final class TextBlockSimple extends AbstractTextBlock implements TextBlock {
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// ::remove file when __HAXE__
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private List<Line> lines;
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private final Display texts;
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private final FontConfiguration fontConfiguration;
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private final HorizontalAlignment horizontalAlignment;
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private final SpriteContainer spriteContainer;
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private final double maxMessageSize;
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public TextBlockSimple(Display texts, FontConfiguration fontConfiguration, HorizontalAlignment horizontalAlignment,
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SpriteContainer spriteContainer, double maxMessageSize) {
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this.texts = texts;
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this.fontConfiguration = fontConfiguration;
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this.horizontalAlignment = horizontalAlignment;
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this.spriteContainer = spriteContainer;
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this.maxMessageSize = maxMessageSize;
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}
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private List<Line> getLines(StringBounder stringBounder) {
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if (lines == null) {
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if (stringBounder == null)
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throw new IllegalStateException();
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this.lines = new ArrayList<>();
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for (CharSequence s : texts)
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addInLines(stringBounder, s.toString());
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}
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return lines;
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}
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private void addInLines(StringBounder stringBounder, String s) {
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if (maxMessageSize == 0) {
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addSingleLine(s);
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} else if (maxMessageSize > 0) {
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final StringTokenizer st = new StringTokenizer(s, " ", true);
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final StringBuilder currentLine = new StringBuilder();
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while (st.hasMoreTokens()) {
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final String token = st.nextToken();
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final double w = getTextWidth(stringBounder, currentLine + token);
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if (w > maxMessageSize) {
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addSingleLineNoSpace(currentLine.toString());
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currentLine.setLength(0);
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if (token.startsWith(" ") == false)
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currentLine.append(token);
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} else
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currentLine.append(token);
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}
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addSingleLineNoSpace(currentLine.toString());
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} else if (maxMessageSize < 0) {
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final StringBuilder currentLine = new StringBuilder();
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for (int i = 0; i < s.length(); i++) {
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final char c = s.charAt(i);
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final double w = getTextWidth(stringBounder, currentLine.toString() + c);
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if (w > -maxMessageSize) {
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addSingleLineNoSpace(currentLine.toString());
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currentLine.setLength(0);
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if (c != ' ')
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currentLine.append(c);
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} else {
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currentLine.append(c);
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}
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}
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addSingleLineNoSpace(currentLine.toString());
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}
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}
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private void addSingleLineNoSpace(String s) {
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if (s.length() == 0 || MyPattern.mtches(s, "^[%s]*$ ")) {
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return;
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}
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lines.add(SingleLine.withSomeHtmlTag(s, fontConfiguration, horizontalAlignment, spriteContainer));
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}
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private void addSingleLine(String s) {
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lines.add(SingleLine.withSomeHtmlTag(s, fontConfiguration, horizontalAlignment, spriteContainer));
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}
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private double getTextWidth(StringBounder stringBounder, String s) {
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final Line line = SingleLine.withSomeHtmlTag(s, fontConfiguration, horizontalAlignment, spriteContainer);
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return line.calculateDimension(stringBounder).getWidth();
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}
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public XDimension2D calculateDimension(StringBounder stringBounder) {
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return getTextDimension(stringBounder);
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}
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protected final XDimension2D getTextDimension(StringBounder stringBounder) {
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double width = 0;
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double height = 0;
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for (Line line : getLines(stringBounder)) {
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final XDimension2D size2D = line.calculateDimension(stringBounder);
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height += size2D.getHeight();
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width = Math.max(width, size2D.getWidth());
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}
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return new XDimension2D(width, height);
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}
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public void drawU(UGraphic ug) {
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double y = 0;
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final XDimension2D dimText = getTextDimension(ug.getStringBounder());
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for (Line line : getLines(ug.getStringBounder())) {
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final HorizontalAlignment lineHorizontalAlignment = line.getHorizontalAlignment();
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double deltaX = 0;
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if (lineHorizontalAlignment == HorizontalAlignment.CENTER) {
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final double diff = dimText.getWidth() - line.calculateDimension(ug.getStringBounder()).getWidth();
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deltaX = diff / 2.0;
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} else if (lineHorizontalAlignment == HorizontalAlignment.RIGHT) {
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final double diff = dimText.getWidth() - line.calculateDimension(ug.getStringBounder()).getWidth();
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deltaX = diff;
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}
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line.drawU(ug.apply(new UTranslate(deltaX, y)));
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y += line.calculateDimension(ug.getStringBounder()).getHeight();
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}
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}
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}
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