JWebPresenterSS Class Reference

List of all members.

Public Member Functions
void	init ()
Static Public Member Functions
void	main (String argv[])
Package Attributes
final JApplet	me = this
JWPFrameSS	frame = null
Static Package Attributes
final String	ver = "JWebPresenter SS 1.3 (2005-01-23), L. Zhao"

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Detailed Description

The main class. We basically have two running mode: applet or application. When in applet mode, parameters can be specified by the WWW page where JWebPresenterSS is embeded (see the sample index.html for detailed usage). In application mode, on the other hand, parameters must be given from the command line.

Definition at line 62 of file JWebPresenterSS.java.

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Member Function Documentation

void JWebPresenterSS.init (   )

We can initialize the applet instance by adding a button, which shows the frame when pressed (parameters are passed by JApplet.getParameter()). 2005-01-23 Alternatively, we can show the picture in the viewer (e.g., browser) with no new window by giving empty (or null) cmdText. Parameters: cmdText  text (empty for no window) of the start button, 2005-01-23. slideURL  URL of the FIRST slide (e.g., http://host/slide-1.png). debugMode  0 to disable the debug function, nonzero to enable. ctlURL  URL for the initial control parameters, see document too. If given ctlURL is invalid, then slideURL is used repeatedly. fetchTime  default time interval (in 100ms) to fetch parameters. baseURL  the base URL, see the note of 2004-04-21. windowWidth  the width of JWebPresenter window (see NOTICE), 2005-01-20 windowHeight  the height of JWebPresenter window, 2005-01-20 NOTICE: 2004-04-21, both slideURL and ctlURL can be (re-)specified by control parameters Slide and nextCtl (ctlURL) respectively. They (slideURL and ctlURL) are determined as follows: If Slide (nextCtl) is an absolute URL, use it; otherwise use baseURL + Slide (baseURL + nextCtl). NOTICE: 2005-01-20, Dove told me that specifying window size at start time could be helpful. This is. The default size is full screen if width or height is invalid. Definition at line 101 of file JWebPresenterSS.java. References frame, and me. { Container pane = getContentPane(); // get the drawing pane. String cmdText = me.getParameter("cmdText"); // Get the cmdText string. if (cmdText == null) cmdText = ""; // Then cmdText is not null. if (cmdText.length() == 0) { // empty string means not to create window. pane.add(new JWPPanelSS(null, // no window me.getParameter("slideURL"), me.getParameter("debugMode"), me.getParameter("ctlURL"), me.getParameter("baseURL"), me.getParameter("fetchTime"), true)); // "true" is for applet. } else { // create the window JButton startButton = new JButton(cmdText); startButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (frame == null) { frame = new JWPFrameSS(me.getParameter("slideURL"), me.getParameter("debugMode"), me.getParameter("ctlURL"), me.getParameter("baseURL"), me.getParameter("fetchTime"), me.getParameter("windowWidth"), me.getParameter("windowHeight"), true); // "true" is for applet. } frame.setVisible(true); } }); pane.add(startButton); } }

void JWebPresenterSS.main (  String  argv[]  )  [static]

main function, hence we can also run as an application. Definition at line 139 of file JWebPresenterSS.java. { if (argv.length < 1) { System.out.println("JWebPresenter Project :: " + ver + "\n" + "Usage: java JWebPresenterSS parameters\n" + "Parameters can be given like name=value (no space around =) in any order.\n" + " slideURL: initial URL to get slides, can be omitted if given by ctlURL.\n" + " ctlURL: initial URL to get control parameters;\n" + " debugMode: debug mode, 0 to disable (default), 1 or above to enable;\n" + " baseURL: base URL, used if a URL obtained from ctlURL is not absolute;\n" + " fetchTime: time in 100ms to fetch targets (default 50);\n" + " width: width of presentation window (can be modified after start);\n" + " height: height of presentation window (can be modified after start).\n" + "If no width or height is specified, full screen mode is used.\n" + "Parameter's name can be abbreviated if no confusion happens.\n" + "For example: s=ftp://host/slide.png c=http://host/ctl.txt b=ftp://host/\n"); System.exit(1); } String slideURL = ""; String ctlURL = ""; String debugMode = ""; String baseURL = ""; String fetchTime = ""; String width = ""; String height = ""; for (int i=0; i<argv.length; i++) { int j = argv[i].indexOf("="); if (j == -1) { System.out.println("Bad parameter ("+argv[i] +") omitted"); continue; } // else { switch (argv[i].charAt(0)) { case 's' : slideURL = argv[i].substring(j+1); break; case 'c' : ctlURL = argv[i].substring(j+1); break; case 'd' : debugMode = argv[i].substring(j+1); break; case 'b' : baseURL = argv[i].substring(j+1); break; case 'f' : fetchTime = argv[i].substring(j+1); break; case 'w' : width = argv[i].substring(j+1); break; case 'h' : height = argv[i].substring(j+1); break; default : System.out.println("Bad parameter ("+argv[i]+") omitted."); } } new JWPFrameSS(slideURL, debugMode, ctlURL, baseURL, fetchTime, width, height, false).setVisible(true); }

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Member Data Documentation

JWPFrameSS JWebPresenterSS.frame = null [package]

Reference to the frame instance, valid only for nonempty cmdText. Definition at line 76 of file JWebPresenterSS.java. Referenced by init().

final JApplet JWebPresenterSS.me = this [package]

Reference to myself (the applet). Definition at line 71 of file JWebPresenterSS.java. Referenced by init().

final String JWebPresenterSS.ver = "JWebPresenter SS 1.3 (2005-01-23), L. Zhao" [static, package]

Version description. Definition at line 66 of file JWebPresenterSS.java.

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The documentation for this class was generated from the following file:

• JWebPresenterSS.java

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