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Add support for creating screenshots. 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1485435 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas Neidhart 2013-05-22 21:32:02 +00:00
parent ab6b3c02c3
commit 37376db2eb
3 changed files with 88 additions and 31 deletions
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24
src/test/java/org/apache/commons/math3/userguide/ClusteringExamples.java
View File

@ -33,8 +33,7 @@ import java.util.List;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.JLabel;
import org.apache.commons.math3.distribution.NormalDistribution;
import org.apache.commons.math3.geometry.euclidean.twod.Vector2D;
@ -180,15 +179,12 @@ public class ClusteringExamples {
return points;
}
@SuppressWarnings("serial")
public static class Display extends JFrame {
private static final long serialVersionUID = -8846964550416589808L;
public Display() {
setTitle("Clustering examples");
setSize(800, 800);
setLocationRelativeTo(null);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setLayout(new GridBagLayout());
@ -217,9 +213,7 @@ public class ClusteringExamples {
c.insets = new Insets(2, 2, 2, 2);
for (Pair<String, Clusterer<DoublePoint>> pair : algorithms) {
JTextArea text = new JTextArea(pair.getFirst());
text.setEditable(false);
text.setOpaque(false);
JLabel text = new JLabel("<html><body>" + pair.getFirst().replace("\n", "<br>"));
add(text, c);
c.gridx++;
}
@ -239,10 +233,9 @@ public class ClusteringExamples {
}
}
@SuppressWarnings("serial")
public static class ClusterPlot extends JComponent {
private static final long serialVersionUID = 4546352048750419587L;
private static double PAD = 10;
private List<? extends Cluster<DoublePoint>> clusters;
@ -274,7 +267,7 @@ public class ClusteringExamples {
for (DoublePoint point : cluster.getPoints()) {
Clusterable p = transform(point, w, h);
double[] arr = p.getPoint();
g2.fill(new Ellipse2D.Double(arr[0] - 2, arr[1] - 2, 4, 4));
g2.fill(new Ellipse2D.Double(arr[0] - 1, arr[1] - 1, 3, 3));
}
if (cluster instanceof CentroidCluster) {
@ -304,11 +297,6 @@ public class ClusteringExamples {
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
Display d = new Display();
d.setVisible(true);
}
});
ExampleUtils.showExampleFrame(new Display());
}
}

79
src/test/java/org/apache/commons/math3/userguide/ExampleUtils.java Normal file
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@ -0,0 +1,79 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.math3.userguide;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;
import javax.swing.SwingUtilities;
public class ExampleUtils {
public static void showExampleFrame(final JFrame frame) {
Runnable r = new Runnable() {
public void run() {
JMenuItem screenshot = new JMenuItem("Screenshot (png)");
screenshot.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_0, InputEvent.CTRL_DOWN_MASK));
screenshot.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
JFileChooser fileChooser = new JFileChooser(System.getProperty("user.dir"));
if (fileChooser.showSaveDialog(frame) == JFileChooser.APPROVE_OPTION) {
File file = fileChooser.getSelectedFile();
BufferedImage img = getScreenShot(frame.getContentPane());
try {
// write the image as a PNG
ImageIO.write(img, "png", file);
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
JMenu menu = new JMenu("File");
menu.add(screenshot);
JMenuBar mb = new JMenuBar();
mb.add(menu);
frame.setJMenuBar(mb);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
};
SwingUtilities.invokeLater(r);
}
private static BufferedImage getScreenShot(Component component) {
BufferedImage image = new BufferedImage(component.getWidth(), component.getHeight(), BufferedImage.TYPE_INT_RGB);
// call the Component's paint method, using the Graphics object of the image.
component.paint(image.getGraphics());
return image;
}
}

16
src/test/java/org/apache/commons/math3/userguide/RandomVectorGeneratorExamples.java
View File

@ -32,7 +32,6 @@ import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import org.apache.commons.math3.geometry.euclidean.twod.Vector2D;
import org.apache.commons.math3.random.HaltonSequenceGenerator;
@ -118,15 +117,12 @@ public class RandomVectorGeneratorExamples {
return points;
}
@SuppressWarnings("serial")
public static class Display extends JFrame {
private static final long serialVersionUID = -8846964550416589808L;
public Display() {
setTitle("Pseudo/Quasi-random examples");
setSize(800, 800);
setLocationRelativeTo(null);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setLayout(new GridBagLayout());
@ -206,10 +202,9 @@ public class RandomVectorGeneratorExamples {
}
}
@SuppressWarnings("serial")
public static class Plot extends JComponent {
private static final long serialVersionUID = 4546352048750419587L;
private static double PAD = 10;
private List<Vector2D> points;
@ -252,11 +247,6 @@ public class RandomVectorGeneratorExamples {
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
Display d = new Display();
d.setVisible(true);
}
});
ExampleUtils.showExampleFrame(new Display());
}
}