edu.cmu.tetradapp.workbench.ErrorDisplayComp Maven / Gradle / Ivy
///////////////////////////////////////////////////////////////////////////////
// For information as to what this class does, see the Javadoc, below. //
// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, //
// 2007, 2008, 2009, 2010, 2014, 2015, 2022 by Peter Spirtes, Richard //
// Scheines, Joseph Ramsey, and Clark Glymour. //
// //
// This program 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 2 of the License, or //
// (at your option) any later version. //
// //
// This program is 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 program; if not, write to the Free Software //
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA //
///////////////////////////////////////////////////////////////////////////////
package edu.cmu.tetradapp.workbench;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.Rectangle2D;
/**
* The display component for error nodes, which is a transparent ellipse.
*
* @author Joseph Ramsmey
* @version $Id: $Id
*/
public class ErrorDisplayComp extends JComponent
implements DisplayComp {
/**
* True iff this display node is selected.
*/
private boolean selected;
/**
* Constructor for ErrorDisplayComp.
*
* @param name a {@link java.lang.String} object
*/
public ErrorDisplayComp(String name) {
setBackground(DisplayNodeUtils.getNodeFillColor());
setFont(DisplayNodeUtils.getFont());
setName(name);
}
/**
* {@inheritDoc}
*/
public void setName(String name) {
super.setName(name);
setSize(getPreferredSize());
}
/**
* {@inheritDoc}
*/
public boolean contains(int x, int y) {
return getShape().contains(x, y);
}
/**
* @return the shape of the component.
*/
private Shape getShape() {
return new Rectangle2D.Double(0, 0, getPreferredSize().width - 1,
getPreferredSize().height - 1);
}
/**
* {@inheritDoc}
*
* Paints the component.
*/
public void paint(Graphics g) {
FontMetrics fm = getFontMetrics(DisplayNodeUtils.getFont());
Dimension size = getPreferredSize();
int stringWidth = fm.stringWidth(getName());
int stringX = (size.width - stringWidth) / 2;
int stringY = fm.getAscent() + (size.height - fm.getHeight()) / 2;
g.setColor(DisplayNodeUtils.getNodeTextColor());
g.drawString(getName(), stringX, stringY);
}
/**
* Calculates the size of the component based on its name.
*
* @return a {@link java.awt.Dimension} object
*/
public Dimension getPreferredSize() {
FontMetrics fm = getFontMetrics(DisplayNodeUtils.getFont());
int width = fm.stringWidth(getName()) + fm.getMaxAdvance();
int height = 2 * DisplayNodeUtils.getPixelGap() + fm.getAscent();
return new Dimension(width, height);
}
/**
*
isSelected.
*
* @return a boolean
*/
public boolean isSelected() {
return this.selected;
}
/**
* {@inheritDoc}
*/
public void setSelected(boolean selected) {
this.selected = selected;
}
}