/* Copyright (c) 2007-2014 by panayotis.com
*
* JavaPlot is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, version 2.
*
* JavaPlot is free 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with CrossMobile; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Created on October 24, 2007, 7:47 PM
*/
package com.panayotis.gnuplot.terminal;
import java.io.InputStream;
import java.io.Reader;
import java.io.StringReader;
import java.lang.reflect.InvocationTargetException;
import java.net.URI;
import javax.swing.JPanel;
/**
* This Terminal uses SVG graphics to display data on screen. It relies on the
* open source project SVGSalamander (http://svgsalamander.dev.java.net/)
*
* @author teras
*/
public class SVGTerminal extends TextFileTerminal {
/**
* Creates a new instance of SVGTerminal
*/
public SVGTerminal() {
this("");
}
/**
* Creates a new instance of SVGTerminal and store output to a specific file
*
* @param filename
*/
public SVGTerminal(String filename) {
super("svg", filename);
}
/**
* Process output of this terminal. Typically this is used to overcome a bug
* in SVGSalamander
*
* @param stdout The gnuplot output stream
* @return Return the error as a String, if an error occured.
*/
public String processOutput(InputStream stdout) {
String out_status = super.processOutput(stdout);
if (output != null && getOutputFile().equals(""))
output = output.replace("currentColor", "black");
return out_status;
}
/**
* Retrieve a JPanel whith the provided SVG drawn on it.
*
* @return The JPanel with the SVG drawing
* @throws java.lang.ClassNotFoundException If the SVGSalamander library
* could not be found, or if any other error occured.
*/
public JPanel getPanel() throws ClassNotFoundException {
/*
* Use reflection API to create the representation in SVG format
*/
Object svgDisplayPanel = null;
if (output == null || output.equals(""))
throw new NullPointerException("SVG output is empty; probably SVG terminal is not used or plot() not executed yet.");
try {
svgDisplayPanel = Class.forName("com.kitfox.svg.SVGDisplayPanel").newInstance();
Object universe = Class.forName("com.kitfox.svg.SVGUniverse").newInstance();
Object diagram = null;
universe.getClass().getMethod("loadSVG", Reader.class, String.class).invoke(universe, new StringReader(output), "plot");
URI uri = (URI) universe.getClass().getMethod("getStreamBuiltURI", String.class).invoke(universe, "plot");
diagram = universe.getClass().getMethod("getDiagram", URI.class).invoke(universe, uri);
svgDisplayPanel.getClass().getMethod("setDiagram", Class.forName("com.kitfox.svg.SVGDiagram")).invoke(svgDisplayPanel, diagram);
} catch (NoSuchMethodException e) {
throw new ClassNotFoundException(e.getMessage());
} catch (InstantiationException e) {
throw new ClassNotFoundException(e.getMessage());
} catch (IllegalAccessException e) {
throw new ClassNotFoundException(e.getMessage());
} catch (InvocationTargetException e) {
throw new ClassNotFoundException(e.getMessage());
} catch (Exception e) {
throw new ClassNotFoundException(e.getMessage());
}
return (JPanel) svgDisplayPanel;
}
}