Unfortunately, the above solution did not work for Jython Fiji plugin. I had to use getProperty to construct the relative path dynamically.
Here's what worked for me:
import java.lang.System.getProperty;
import javax.swing.JFrame;
import javax.swing.ImageIcon;
frame = JFrame("Test")
icon = ImageIcon(getProperty('fiji.dir') + '/path/relative2Fiji/icon.png')
frame.setIconImage(icon.getImage());
frame.setVisible(True)
JFrame.setIconImage(Image image)
pretty standard.
Just add the following code:
setIconImage(new ImageIcon(PathOfFile).getImage());
Here is an Alternative that worked for me:
yourFrame.setIconImage(Toolkit.getDefaultToolkit().getImage(getClass().getResource(Filepath)));
It's very similar to the accepted Answer.
This did the trick in my case super
or this
referes to JFrame
in my class
URL url = getClass().getResource("gfx/hi_20px.png");
ImageIcon imgicon = new ImageIcon(url);
super.setIconImage(imgicon.getImage());
Here is how I do it:
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import java.io.File;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
public class MainFrame implements ActionListener{
/**
*
*/
/**
* @param args
*/
public static void main(String[] args) {
String appdata = System.getenv("APPDATA");
String iconPath = appdata + "\\JAPP_icon.png";
File icon = new File(iconPath);
if(!icon.exists()){
FileDownloaderNEW fd = new FileDownloaderNEW();
fd.download("http://icons.iconarchive.com/icons/artua/mac/512/Setting-icon.png", iconPath, false, false);
}
JFrame frm = new JFrame("Test");
ImageIcon imgicon = new ImageIcon(iconPath);
JButton bttn = new JButton("Kill");
MainFrame frame = new MainFrame();
bttn.addActionListener(frame);
frm.add(bttn);
frm.setIconImage(imgicon.getImage());
frm.setSize(100, 100);
frm.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
}
and here is the downloader:
import java.awt.GridLayout;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JProgressBar;
public class FileDownloaderNEW extends JFrame {
private static final long serialVersionUID = 1L;
public static void download(String a1, String a2, boolean showUI, boolean exit)
throws Exception
{
String site = a1;
String filename = a2;
JFrame frm = new JFrame("Download Progress");
JProgressBar current = new JProgressBar(0, 100);
JProgressBar DownloadProg = new JProgressBar(0, 100);
JLabel downloadSize = new JLabel();
current.setSize(50, 50);
current.setValue(43);
current.setStringPainted(true);
frm.add(downloadSize);
frm.add(current);
frm.add(DownloadProg);
frm.setVisible(showUI);
frm.setLayout(new GridLayout(1, 3, 5, 5));
frm.pack();
frm.setDefaultCloseOperation(3);
try
{
URL url = new URL(site);
HttpURLConnection connection =
(HttpURLConnection)url.openConnection();
int filesize = connection.getContentLength();
float totalDataRead = 0.0F;
BufferedInputStream in = new BufferedInputStream(connection.getInputStream());
FileOutputStream fos = new FileOutputStream(filename);
BufferedOutputStream bout = new BufferedOutputStream(fos, 1024);
byte[] data = new byte[1024];
int i = 0;
while ((i = in.read(data, 0, 1024)) >= 0)
{
totalDataRead += i;
float prog = 100.0F - totalDataRead * 100.0F / filesize;
DownloadProg.setValue((int)prog);
bout.write(data, 0, i);
float Percent = totalDataRead * 100.0F / filesize;
current.setValue((int)Percent);
double kbSize = filesize / 1000;
String unit = "kb";
double Size;
if (kbSize > 999.0D) {
Size = kbSize / 1000.0D;
unit = "mb";
} else {
Size = kbSize;
}
downloadSize.setText("Filesize: " + Double.toString(Size) + unit);
}
bout.close();
in.close();
System.out.println("Took " + System.nanoTime() / 1000000000L / 10000L + " seconds");
}
catch (Exception e)
{
JOptionPane.showConfirmDialog(
null, e.getMessage(), "Error",
-1);
} finally {
if(exit = true){
System.exit(128);
}
}
}
}
Add the following code within the constructor like so:
public Calculator() {
initComponents();
//the code to be added this.setIconImage(newImageIcon(getClass().getResource("color.png")).getImage()); }
Change "color.png" to the file name of the picture you want to insert. Drag and drop this picture onto the package (under Source Packages) of your project.
Run your project.
Source: Stackoverflow.com