[jsword-devel] Flashcard build silliness

Troy A. Griffitts scribe at crosswire.org
Sat Sep 11 12:39:51 MST 2004 

Hey DM,
	Been working on re-adding support for editing files into flashcards and 
am trying to understand how things work.  Help me learn about the need 
for the classloader extension.

	Here is what I think the path might be for loading the lesson groups.

	1. look on the resource path (basically, the flashcards.jar file) for 
"lessons/<lesson_group>/*.flash
	2. CWD "file:lessons/<lesson_group>/*.flash
	3. CWD "jar:file:lessons/*.jar!/lessons/<lesson_group>/*.flash
	4. HOME "file:${user.home}/.flashcards/lessons/ <lesson_group>/*.flash
	5. HOME "jar:file:${user.home}/.flashcards/lessons/ 
*.jar!/lessons/<lesson_group>/*.flash

	I was going to attempt to write this today with 2 functions which could 
be called from the quizzer and the editor could use at least the first 
when the path is chosen:

	// called for each <lesson_group> found
	public static void addLessonGroup(Map lessonGroups, URL url);

	// called 5 times with above logic
	public static Vector discoverLessonGroups(URL lessonsPath);


	...but thought it best to ask you for direction, as I still don't 
understand the function of the class loader.

	Thanks for your efforts and in advance for your guidance!

		-Troy.





DM Smith wrote:
> For those that were following this thread. Troy, John and I took it the 
> conversation offline to figure out the problem.
> We have fixed the problem (which was that the jar did not have the image 
> files needed for the editor).
> 
> The program is available via webstart at www.crosswire.org/flashcards.
> 
> John's addition to the program is the ability to run the editor from 
> inside of the quizzer.
> 
> Troy A. Griffitts wrote:
> 
>> OK John,
>>     Here's my latest discoveries.
>>
>>     If I build on the server with ant and jdk 1.5.0, I have the null 
>> editor window, running on XP jdk 1.4.1.
>>     If I build on the server with ant and jdk 1.4.2, I have the null 
>> editor window, running on XP jdk 1.4.1.
>>     If I build on the server with your build script and jdk 1.5.0, I 
>> get 1.5.0 compile errors which have been fixed and committed, and then 
>> I get:
>>
>> Exception in thread "main" java.lang.UnsupportedClassVersionError: 
>> org/crosswire /flashcards/Quiz (Unsupported major.minor version 49.0)
>>
>>     which is probably expected from XP and jdk 1.4.1
>>
>>     If I build on the server with your build script and jdk 1.4.2 
>> everything works on XP jdk 1.4.1.
>>
>>     Hope we can track this down.
>>
>>         -Troy.
>>
>> get On Thu, 9 Sep 2004, John Jacques wrote:
>>
>>> Troy,
>>>
>>> I don't get anything when I try to run the editor from the MainMenu
>>> using webstart (Quiz does work).  All works well when I run from the
>>> command line (on Linux):
>>>
>>>     $ java -jar flashcards.jar
>>>
>>> The Editor is the correct size etc.
>>>
>>> I almost have my local web server set up to allow me to use webstart.
>>> The last remaining obsticle is signing the jar file!  I am trying as
>>> recommended
>>> (http://java.sun.com/j2se/1.4.2/docs/guide/jws/developersguide/development.html#signing) 
>>> but haven't been able to obtain 'unrestricted access'...
>>>
>>> On Thu, 2004-09-09 at 12:20, Troy A. Griffitts wrote:
>>>
>>>> John,
>>>>      We could try setting a size.  It's not necessarily a webstart
>>>> issue.  I got that error I reported to you by running the produced jar
>>>> file on an XP box.  If you click on the webstart link from this page:
>>>>
>>>> http://crosswire.org/flashcards/
>>>>
>>>> does the edit choice work for you?
>>>>
>>>> I can grab the corner of the very small editor window and resize it
>>>> larger, but there is nothing on the client area.
>>>>
>>>> If you'd really like the breathing marks to be entered before the 
>>>> letters,
>>>> the IM mechanism supports multiple keystroke for character entry.  
>>>> This is
>>>> used in the Michigan Claremont Hebrew keymap, if you'd like to see 
>>>> how it
>>>> works.  Actually, just reviewed HebrewMCIM.java and it looks really
>>>> convoluted.  Sorry about that.
>>>>
>>>>      Thanks for your work!
>>>>
>>>>          -Troy.
>>>>
>>>>
>>>>
>>>> On Wed, 8 Sep 2004, John Jacques wrote:
>>>>
>>>>> Troy,
>>>>>
>>>>> The main difference I see is that MainFrame.java doesn't use
>>>>> java.awt.Toolkit to determine the screen size as in Editor.java.  It
>>>>> might be worth setting a screen size there...
>>>>>
>>>>> I'm glad my other changes didn't break anything!
>>>>>
>>>>> I'll try to set up webstart on a local webserver.  Looks like I would
>>>>> just have to edit Flashcards.jnlp.  Is it that simple?
>>>>>
>>>>> On Wed, 2004-09-08 at 16:49, Troy A. Griffitts wrote:
>>>>>
>>>>>> John,
>>>>>>      Thank you for your recent submissions.  I have updated the
>>>>>> webstart installer to the latest code and the editor doesn't seem to
>>>>>> launch for me.  I get an error:
>>>>>>   ERROR :
>>>>>> org.crosswire.flashcards.EditorFrame[frame0,0,0,0x0,invalid,hidden,layo 
>>>>>>
>>>>>> ut=java.awt.BorderLayout,title=,resizable,normal,defaultCloseOperation=HIDE_ON_C 
>>>>>>
>>>>>> LOSE,rootPane=javax.swing.JRootPane[,0,0,0x0,invalid,layout=javax.swing.JRootPan 
>>>>>>
>>>>>> e$RootLayout,alignmentX=null,alignmentY=null,border=,flags=385,maximumSize=,mini 
>>>>>>
>>>>>> mumSize=,preferredSize=],rootPaneCheckingEnabled=true] :
>>>>>> Thread[main,5,main]
>>>>>> null
>>>>>>
>>>>>> and a very small windows (actually just the titlebar).
>>>>>>
>>>>>> Let me know if you have an idea what it might be.  Thank you.
>>>>>>
>>>>>>      -Troy.
>>>>>>
>>>>>>
>>>>>> On Wed, 18 Aug 2004, John Jacques wrote:
>>>>>>
>>>>>>> Troy,
>>>>>>>
>>>>>>> I'm going to check in my changes to flashcards.  So far there are no
>>>>>>> major changes, just minor fixes.
>>>>>>>
>>>>>>> If I want to make larger changes, should we branch?  Does the 
>>>>>>> revision
>>>>>>> (4 in this case) match up with other CrossWire software such as 
>>>>>>> modedit
>>>>>>> (which I believe is used elsewhere)?
>>>>>>>
>>>>>>> One last question, is there a mailing list, or any other forum, 
>>>>>>> where
>>>>>>> new ideas should be discussed before they are implemented?
>>>>>>>
>>>>>>> On Sun, 2004-08-15 at 03:23, Troy A. Griffitts wrote:
>>>>>>>
>>>>>>>> John,
>>>>>>>>     We've recently changed servers and it has been keeping me 
>>>>>>>> busy for the
>>>>>>>> past few weeks.  We just put a new live SVN repository online at:
>>>>>>>>
>>>>>>>> https://crosswire.org/svn/flashcards/
>>>>>>>>
>>>>>>>> The repository permission is currently WORLD READ/WRITE.  If you 
>>>>>>>> would
>>>>>>>> like to commit your changes to the repository, you are welcome 
>>>>>>>> to do so.
>>>>>>>>   Not sure if you've had subversion experience.  If now, you can 
>>>>>>>> find
>>>>>>>> info and software at:
>>>>>>>>
>>>>>>>> http://subversion.tigris.org
>>>>>>>>
>>>>>>>> Thanks again for your willingness to help.
>>>>>>>>
>>>>>>>>     -Troy.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> John Jacques wrote:
>>>>>>>>
>>>>>>>>> Troy,
>>>>>>>>>
>>>>>>>>> I made the following changes.  Let me know if you keep any of 
>>>>>>>>> them!
>>>>>>>>> There are files named "Changes.eruditelite" in any directory I 
>>>>>>>>> made
>>>>>>>>> changes in that describe each change and the modified files.  I 
>>>>>>>>> have
>>>>>>>>> also included the change files in this messages (see below).
>>>>>>>>>
>>>>>>>>> Are you using a revision control system?
>>>>>>>>>
>>>>>>>>> Also, what do you think of the following proposals:
>>>>>>>>>
>>>>>>>>>     1) Add a Quiz mode in which the user is presented with the
>>>>>>>>>        vocabulary word only (not multiple choice) and then the
>>>>>>>>>            answer (either time delayed or by pressing a 
>>>>>>>>> button).  The
>>>>>>>>>            user then indicates whether they knew the word or 
>>>>>>>>> not.  The
>>>>>>>>>            current mode (multiple choice) would still be 
>>>>>>>>> available.
>>>>>>>>>
>>>>>>>>>     2) Cleanup ".flash" files when saving (eliminate unused
>>>>>>>>>            entries, renumber etc.)
>>>>>>>>>
>>>>>>>>> ========== In the top directory:
>>>>>>>>>
>>>>>>>>> 1) Added GNUmakefile to speedup working from emacs/command line.
>>>>>>>>> 2) Updated to the latest (on the website 22 July 2004) 
>>>>>>>>> modedit.  This
>>>>>>>>>    allowed me to enter text (classical greek) in Mandrake 10.0.
>>>>>>>>> 3) Added MounceBasicsChapter04.flash (Vocabulary from Chapter 4 of
>>>>>>>>>    Mounce's Basics of Biblical Greek).
>>>>>>>>>
>>>>>>>>> ========== In src/flash:
>>>>>>>>>
>>>>>>>>> 1) Changed tool tip for "Save" from "Help" to "Save"
>>>>>>>>> (EditorFrame.java:102)
>>>>>>>>> 2) Stopped displaying exception on startup when "NewLesson.flash"
>>>>>>>>>    didn't exist.  (EidtorFrame.java:247)
>>>>>>>>>
>>>>>>>>> On Sat, 2004-07-17 at 16:37, Troy A. Griffitts wrote:
>>>>>>>>>
>>>>>>>>>> John,
>>>>>>>>>>     Thanks for the offer.  We'd love any help you'd be willing to
>>>>>>>>>> volunteer.  That's how our open projects improve!  You'll find 
>>>>>>>>>> the source
>>>>>>>>>> in the same directory pointed to by the download link.  I 
>>>>>>>>>> don't think we
>>>>>>>>>> have an actual link to it yet.
>>>>>>>>>>
>>>>>>>>>>     We do have some c++/linux/handheld apps:
>>>>>>>>>>     http://crosswire.org/qpsword/
>>>>>>>>>>
>>>>>>>>>>     And we'd love to see flashcards run on the Zaurus! :)  Or 
>>>>>>>>>> at least
>>>>>>>>>> a client that reads the same lesson formats.
>>>>>>>>>>
>>>>>>>>>>     Thanks you again for your persistence to get our app to 
>>>>>>>>>> work and
>>>>>>>>>> willingness to help!
>>>>>>>>>>
>>>>>>>>>>     -Troy A. Griffitts
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Sat, 17 Jul 2004, John Jacques wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> Troy,
>>>>>>>>>>>
>>>>>>>>>>> Thanks for the response!  The final sigma is " (double quote) 
>>>>>>>>>>> and my
>>>>>>>>>>> confusion about saving a new list was the pop-up hint for the 
>>>>>>>>>>> save
>>>>>>>>>>> button (which says "Help").  It all works now...
>>>>>>>>>>>
>>>>>>>>>>> If you are interested in programming help, let me know.  I am a
>>>>>>>>>>> programmer (embedded Linux/Real Time) so most of my 
>>>>>>>>>>> experience is OS
>>>>>>>>>>> porting and device drivers but I have written a fair amount 
>>>>>>>>>>> of Java
>>>>>>>>>>> (~7,000 lines) including a Swing GUI.
>>>>>>>>>>>
>>>>>>>>>>> On Sat, 2004-07-17 at 07:02, Troy A. Griffitts wrote:
>>>>>>>>>>>
>>>>>>>>>>>> John, I believe that final sigma is the ' key.  Did you type 
>>>>>>>>>>>> a filename
>>>>>>>>>>>> in the filename box before you hit save?  I realize this 
>>>>>>>>>>>> isn't an
>>>>>>>>>>>> orthodox method for saving a new file, but it's a first rev 
>>>>>>>>>>>> of the
>>>>>>>>>>>> software.  Please let me know if this information hasn't 
>>>>>>>>>>>> helped get you
>>>>>>>>>>>> going.
>>>>>>>>>>>>
>>>>>>>>>>>>     -Troy A. Griffitts.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> John Jacques wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> First of all, thank you for a wonderful program!  However, 
>>>>>>>>>>>>> I can't seem
>>>>>>>>>>>>> to get FlashEditor.jar to save any of the changes I make or 
>>>>>>>>>>>>> let me enter
>>>>>>>>>>>>> a sigma (the end of word sigma that is)...
>>>>>>>>>>>>>
>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>> sword-support mailing list
>>>>>>>>>>>>> sword-support at crosswire.org
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>
>>>
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