net.sourceforge.plantuml.sequencediagram.graphic.NotesBoxes Maven / Gradle / Ivy
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* PlantUML : a free UML diagram generator
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* Original Author: Arnaud Roques
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package net.sourceforge.plantuml.sequencediagram.graphic;
import java.util.ArrayList;
import java.util.List;
import net.sourceforge.plantuml.graphic.StringBounder;
import net.sourceforge.plantuml.sequencediagram.InGroupable;
import net.sourceforge.plantuml.skin.Context2D;
import net.sourceforge.plantuml.ugraphic.UGraphic;
final class NotesBoxes extends GraphicalElement implements InGroupable {
private final List notes = new ArrayList<>();
private final List participants1 = new ArrayList<>();
private final List participants2 = new ArrayList<>();
NotesBoxes(double startingY) {
super(startingY);
}
public void add(NoteBox noteBox, ParticipantBox participantBox1, ParticipantBox participantBox2) {
notes.add(noteBox);
participants1.add(participantBox1);
if (participantBox2 == null)
participants2.add(participantBox1);
else
participants2.add(participantBox2);
}
public void ensureConstraints(StringBounder stringBounder, ConstraintSet constraintSet) {
for (int i = 0; i < notes.size(); i++) {
final NoteBox noteBox = notes.get(i);
final ParticipantBox participantBox1 = participants1.get(i);
final ParticipantBox participantBox2 = participants2.get(i);
final double width = noteBox.getPreferredWidth(stringBounder);
// System.err.println("i=" + i);
// System.err.println("width=" + width);
// System.err.println("participantBox1=" + participantBox1);
// System.err.println("participantBox2=" + participantBox2);
constraintSet.getConstraintBefore(participantBox1).ensureValue(width / 2);
constraintSet.getConstraintAfter(participantBox2).ensureValue(width / 2);
for (int j = i + 1; j < notes.size(); j++) {
final NoteBox noteBox2 = notes.get(j);
final ParticipantBox otherParticipantBox1 = participants1.get(j);
final double width2 = noteBox2.getPreferredWidth(stringBounder);
if (participantBox2 != otherParticipantBox1)
constraintSet.getConstraint(participantBox2, otherParticipantBox1)
.ensureValue((width + width2) / 2);
}
}
}
public double getMinX(StringBounder stringBounder) {
double result = Double.MAX_VALUE;
for (NoteBox n : notes) {
final double m = n.getMinX(stringBounder);
if (m < result)
result = m;
}
return result;
}
public double getMaxX(StringBounder stringBounder) {
double result = -Double.MAX_VALUE;
for (NoteBox n : notes) {
final double m = n.getMaxX(stringBounder);
if (m > result)
result = m;
}
return result;
}
public String toString(StringBounder stringBounder) {
return toString();
}
@Override
protected void drawInternalU(UGraphic ug, double maxX, Context2D context) {
for (NoteBox n : notes)
n.drawInternalU(ug, maxX, context);
}
@Override
public double getStartingX(StringBounder stringBounder) {
double result = Double.MAX_VALUE;
for (NoteBox n : notes) {
final double m = n.getStartingX(stringBounder);
if (m < result)
result = m;
}
return result;
}
@Override
public double getPreferredWidth(StringBounder stringBounder) {
final double result = getMaxX(stringBounder) - getMinX(stringBounder);
return result;
}
@Override
public double getPreferredHeight(StringBounder stringBounder) {
double result = 0;
for (NoteBox n : notes) {
final double m = n.getPreferredHeight(stringBounder);
if (m > result)
result = m;
}
return result;
}
}