-help
-test
-version
For compatibility with historical applications, this application has a limited ability to read pxgraph files. The command line arguments must be used, and the options that are understood are exactly those of the pxgraph application, plus some more to allow for cross-platform reading. It is not possible to read pxgraph files using the "Open" menu command (because of the cross-platform problems). The additional command-line arguments are:
-bigendian
-bigendian flag.
-littleendian
-littleendian flag.
To compile and run this application, do the following (in Unix):
setenv CLASSPATH ../..
javac PlotApplication.java
java ptolemy.plot.PlotApplication
or in a bash shell in Windows NT:
CLASSPATH=../..
export CLASSPATH
javac PlotApplication.java
java ptolemy.plot.PlotApplication
This assumes a particular directory structure. If this is not what you
have, then alter the above accordingly.
@see Plot
@see PlotBox
@author Christopher Hylands and Edward A. Lee
@version $Id: PlotApplication.java,v 1.6 1998/11/20 01:12:09 cxh Exp $
*/
public class PlotApplication extends PlotFrame {
/** Construct a plot with no command-line arguments.
* It initially displays a sample plot.
*/
public PlotApplication() {
this(null);
}
/** Construct a plot with the specified command-line arguments.
* @param args The command-line arguments.
*/
public PlotApplication(String args[]) {
super();
// Handle window closing by exiting the application.
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
// Strangely, calling _close() here sends javac into
// an infinite loop (in jdk 1.1.4).
// _close();
System.exit(0);
}
});
if (args != null && args.length != 0) {
try {
_parseArgs(args);
} catch (FileNotFoundException ex) {
System.err.println("File not found: " + ex + "\n" + _usage());
throw new RuntimeException("cancelled");
} catch (IOException ex) {
System.err.println("Error reading input: " + ex
+ "\n" + _usage());
throw new RuntimeException("cancelled");
} catch (CmdLineArgException ex) {
System.err.println("Command line format error: " + ex
+ "\n" + _usage());
throw new RuntimeException("cancelled");
}
String _cmdfile = plot.getCmdLineFilename();
if (_cmdfile != null) {
_filename = _cmdfile;
}
} else {
samplePlot();
}
}
///////////////////////////////////////////////////////////////////
//// public methods ////
/** Create a new plot window and map it to the screen.
*/
public static void main(String args[]) {
PlotApplication plot = new PlotApplication(args);
// If the -test arg was set, then exit after 2 seconds.
if (_test) {
try {
Thread.currentThread().sleep(2000);
}
catch (InterruptedException e) {
}
System.exit(0);
}
}
///////////////////////////////////////////////////////////////////
//// protected methods ////
/** Display basic information about the application.
*/
protected void _about() {
Message message = new Message(
"Ptplot\n" +
"By: Edward A. Lee, eal@eecs.berkeley.edu\n" +
"and Christopher Hylands, cxh@eecs.berkeley.edu\n" +
"Version 2.0, Build: $Id: PlotApplication.java,v 1.6 1998/11/20 01:12:09 cxh Exp $\n\n"+
"For more information, see\n" +
"http://ptolemy.eecs.berkeley.edu/java/ptplot\n" +
"Copyright (c) 1997-1998,\n" +
"The Regents of the University of California.");
message.setTitle("About Ptolemy Plot");
}
/** Exit the application.
*/
protected void _close() {
System.exit(0);
}
/** Display more detailed information than given by _about().
*/
protected void _help() {
// Use newlines here since we are displaying with scrollbars.
Message message = new Message(
"PlotApplication is a standalone Java 2D plot application\n" +
"It can read files compatible with the Ptolemy plot\n" +
"file format (currently only ASCII). For a description\n " +
"of the file format, see the Plot and PlotBox classes.\n" +
"Command-line options include:\n" + _usage(),
null, null, 20, 40,
TextArea.SCROLLBARS_BOTH);
message.setTitle("Usage of Ptolemy Plot");
}
/** Parse the command-line
* arguments and make calls to the Plot class accordingly.
* @return The number of arguments read.
* @exception CmdLineArgException If a command line argument cannot
* be parsed.
* @exception FileNotFoundException If an input file cannot be found.
* @exception IOException If there is a problem reading an input.
*/
protected int _parseArgs(String args[]) throws CmdLineArgException,
FileNotFoundException, IOException {
int i = 0, j, argsread;
String arg;
String title = "Ptolemy plot";
int width = 400; // Default width of the graph
int height = 300; // Default height of the graph
// Although most of the arguments are handled by the Plot class,
// a few are dealt with here.
while (i < args.length) {
arg = args[i++];
if (arg.equals("-help")) {
// -help is not in the original X11 pxgraph.
System.out.println(_usage());
continue;
} else if (arg.equals("-test")) {
// -test is not in the original X11 pxgraph.
_test = true;
continue;
} else if (arg.equals("-t")) {
// -t