prefuse.util.display.ExportDisplayAction Maven / Gradle / Ivy

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Prefuse is a set of software tools for creating rich interactive data visualizations in the Java programming language.

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package prefuse.util.display;

import java.awt.event.ActionEvent;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.HashSet;

import javax.imageio.ImageIO;
import javax.swing.AbstractAction;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

import prefuse.Display;
import prefuse.util.io.IOLib;
import prefuse.util.io.SimpleFileFilter;


/**
 * Swing ActionListener that reveals a dialog box that allows users to
 * export the current Display view to an image file.
 * 
 * @author jeffrey heer
 */
public class ExportDisplayAction extends AbstractAction {

    private Display display;
    private JFileChooser chooser;
    private ScaleSelector scaler;
    
    /**
     * Create a new ExportDisplayAction for the given Display.
     * @param display the Display to capture
     */
    public ExportDisplayAction(Display display) {
        this.display = display;
    }
    
    private void init() {
        scaler  = new ScaleSelector();
        chooser = new JFileChooser();
        chooser.setDialogType(JFileChooser.SAVE_DIALOG);
        chooser.setDialogTitle("Export Prefuse Display...");
        chooser.setAcceptAllFileFilterUsed(false);
        
        HashSet seen = new HashSet();
        String[] fmts = ImageIO.getWriterFormatNames();
        for ( int i=0; i