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/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2020, 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.graphic;
import java.awt.geom.Dimension2D;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import net.sourceforge.plantuml.Dimension2DDouble;
import net.sourceforge.plantuml.EmbeddedDiagram;
import net.sourceforge.plantuml.SpriteContainer;
import net.sourceforge.plantuml.command.regex.MyPattern;
import net.sourceforge.plantuml.cucadiagram.Display;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.UTranslate;
public final class TextBlockSimple extends AbstractTextBlock implements TextBlock {
private List<Line> lines;
private final Display texts;
private final FontConfiguration fontConfiguration;
private final HorizontalAlignment horizontalAlignment;
private final SpriteContainer spriteContainer;
private final double maxMessageSize;
public TextBlockSimple(Display texts, FontConfiguration fontConfiguration, HorizontalAlignment horizontalAlignment,
SpriteContainer spriteContainer, double maxMessageSize) {
this.texts = texts;
this.fontConfiguration = fontConfiguration;
this.horizontalAlignment = horizontalAlignment;
this.spriteContainer = spriteContainer;
this.maxMessageSize = maxMessageSize;
}
private List<Line> getLines(StringBounder stringBounder) {
if (lines == null) {
if (stringBounder == null) {
throw new IllegalStateException();
}
this.lines = new ArrayList<Line>();
for (CharSequence s : texts) {
if (s instanceof EmbeddedDiagram) {
lines.add(((EmbeddedDiagram) s).asDraw(null));
} else {
addInLines(stringBounder, s.toString());
}
}
}
return lines;
}
private void addInLines(StringBounder stringBounder, String s) {
if (maxMessageSize == 0) {
addSingleLine(s);
} else if (maxMessageSize > 0) {
final StringTokenizer st = new StringTokenizer(s, " ", true);
final StringBuilder currentLine = new StringBuilder();
while (st.hasMoreTokens()) {
final String token = st.nextToken();
final double w = getTextWidth(stringBounder, currentLine + token);
if (w > maxMessageSize) {
addSingleLineNoSpace(currentLine.toString());
currentLine.setLength(0);
if (token.startsWith(" ") == false) {
currentLine.append(token);
}
} else {
currentLine.append(token);
}
}
addSingleLineNoSpace(currentLine.toString());
} else if (maxMessageSize < 0) {
final StringBuilder currentLine = new StringBuilder();
for (int i = 0; i < s.length(); i++) {
final char c = s.charAt(i);
final double w = getTextWidth(stringBounder, currentLine.toString() + c);
if (w > -maxMessageSize) {
addSingleLineNoSpace(currentLine.toString());
currentLine.setLength(0);
if (c != ' ') {
currentLine.append(c);
}
} else {
currentLine.append(c);
}
}
addSingleLineNoSpace(currentLine.toString());
}
}
private void addSingleLineNoSpace(String s) {
if (s.length() == 0 || MyPattern.mtches(s, "^[%s]*$ ")) {
return;
}
lines.add(SingleLine.withSomeHtmlTag(s, fontConfiguration, horizontalAlignment, spriteContainer));
}
private void addSingleLine(String s) {
lines.add(SingleLine.withSomeHtmlTag(s, fontConfiguration, horizontalAlignment, spriteContainer));
}
private double getTextWidth(StringBounder stringBounder, String s) {
final Line line = SingleLine.withSomeHtmlTag(s, fontConfiguration, horizontalAlignment, spriteContainer);
return line.calculateDimension(stringBounder).getWidth();
}
public Dimension2D calculateDimension(StringBounder stringBounder) {
return getTextDimension(stringBounder);
}
protected final Dimension2D getTextDimension(StringBounder stringBounder) {
double width = 0;
double height = 0;
for (Line line : getLines(stringBounder)) {
final Dimension2D size2D = line.calculateDimension(stringBounder);
height += size2D.getHeight();
width = Math.max(width, size2D.getWidth());
}
return new Dimension2DDouble(width, height);
}
public void drawU(UGraphic ug) {
double y = 0;
final Dimension2D dimText = getTextDimension(ug.getStringBounder());
for (Line line : getLines(ug.getStringBounder())) {
final HorizontalAlignment lineHorizontalAlignment = line.getHorizontalAlignment();
double deltaX = 0;
if (lineHorizontalAlignment == HorizontalAlignment.CENTER) {
final double diff = dimText.getWidth() - line.calculateDimension(ug.getStringBounder()).getWidth();
deltaX = diff / 2.0;
} else if (lineHorizontalAlignment == HorizontalAlignment.RIGHT) {
final double diff = dimText.getWidth() - line.calculateDimension(ug.getStringBounder()).getWidth();
deltaX = diff;
}
line.drawU(ug.apply(new UTranslate(deltaX, y)));
y += line.calculateDimension(ug.getStringBounder()).getHeight();
}
}
}
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