[Blindmath] First attempt at an SWT/SVG based drawing program

Tue Aug 30 04:36:27 UTC 2011

Your including the dll file seems to have solved that problem. When I run 
the program, everything seems to work fine. I select a shape and tab my way 
through the form until I come to the button which will cause that shape to 
be drawn. I press enter or space, and the program closes.

Amanda
----- Original Message ----- 
From: "Richard Baldwin" <baldwin at dickbaldwin.com>
To: "Blind Math list for those interested in mathematics" 
<blindmath at nfbnet.org>
Sent: Monday, August 29, 2011 11:15 PM
Subject: Re: [Blindmath] First attempt at an SWT/SVG based drawing program

> Amanda: I just uploaded a new version of the jar file and included the dll
> files. Maybe I was supposed to include them but it didn't matter on my
> machine because they had already been installed. Please download this new
> version and try to execute it with the following command on the command 
> line
> in the folder that contains SVGDraw01.jar.
>
> java -jar SVGDraw01.jar
>
> Ken: I have been led to believe that when the GUI is developed using the 
> SWT
> instead of Swing, the java access bridge is not required, and that is one 
> of
> the main advantages of using the SWT instead of Swing. However, I do have
> the access bridge installed on my computer so I can't be certain that it 
> is
> not required.
>
> Dick Baldwin
>
> On Mon, Aug 29, 2011 at 10:57 PM, Ken Perry <kperry at blinksoft.com> wrote:
>
>> Do you have to have access bridge installed to use this with Jaws?
>>
>> ken
>>
>> -----Original Message-----
>> From: blindmath-bounces at nfbnet.org [mailto:blindmath-bounces at nfbnet.org]
>> On
>> Behalf Of Richard Baldwin
>> Sent: Monday, August 29, 2011 11:20 PM
>> To: Blind Math list for those interested in mathematics
>> Subject: Re: [Blindmath] First attempt at an SWT/SVG based drawing 
>> program
>>
>> It shouldn't matter which folder you place it in. I haven't seen that 
>> error
>> on my computer at home or on the computer in my office at the college but
>> that may be because I have been doing SWT development on both of those
>> computers and the dll file that you mentioned may have been installed on 
>> my
>> machines at some earlier time. I will try it on one of the lab computers
>> tomorrow to see if I have any problems there. If so, I will see what is
>> needed to correct the problem and upload a corrected jar file.
>>
>> As I mentioned in my earlier message, this is my first encounter with 
>> SWT.
>>
>> Has anyone else seen this problem?
>>
>> Thanks,
>> Dick Baldwin
>>
>> On Mon, Aug 29, 2011 at 9:36 PM, Amanda Lacy <lacy925 at gmail.com> wrote:
>>
>> > Is there a specific folder in which we should place this file? I get an
>> > unsatisfied link error that says something like cannot load SWTWin.dll.
>> >
>> > Amanda
>> > ----- Original Message ----- From: "Richard Baldwin" <
>> > baldwin at dickbaldwin.com>
>> > To: "BlindMath Mailing List" <blindmath at nfbnet.org>
>> > Sent: Monday, August 29, 2011 9:02 PM
>> > Subject: [Blindmath] First attempt at an SWT/SVG based drawing program
>> >
>> >
>> >  For those who may be interested, I have posted my first attempt at
>> putting
>> >> an SWT GUI front end on my SVG graphics library and have posted the
>> >> resulting program in a file named SVGDraw01.jar at the following URL:
>> >>
>> >>
>> http://www.austincc.edu/**baldwin/SWT-SVG/SVGDraw01.jar<
>> http://www.austincc.
>> edu/baldwin/SWT-SVG/SVGDraw01.jar>
>> >>
>> >> I would appreciate it if some of you would download the program, try 
>> >> it,
>> >> and
>> >> provide feedback in several different areas. You will need the Java
>> >> virtual
>> >> machine installed on your computer to run the program. On Windows, you
>> can
>> >> run the program either by double-clicking on the jar file, or by 
>> >> opening
>> a
>> >> command prompt in the folder containing the jar file and entering the
>> >> following command at the command prompt:
>> >>
>> >> java -jar SVGDraw01.jar
>> >>
>> >> When the program starts running, you should find yourself in an SWT
>> Combo
>> >> object with an item labeled "User Instructions" highlighted. Pressing
>> the
>> >> Enter key at this point will take you to the beginning of a page
>> >> containing
>> >> user instructions. A screen reader should tell you to press shift-tab 
>> >> to
>> >> return to the combo box or to press the tab key to continue.
>> >>
>> >> Pressing the tab key will cause the screen reader to begin reading the
>> >> instructions. At the end of the instructions, the screen reader should
>> >> tell
>> >> you to "Press tab to return to the combo box." (Of course, you can 
>> >> press
>> >> tab
>> >> at any time. You don't need to wait until the screen reader finishes
>> >> reading
>> >> the instructions.)
>> >>
>> >> You can navigate up and down the list in the combo box using the arrow
>> >> keys
>> >> and act on an item by pressing the Enter key when that item is 
>> >> selected.
>> >> The
>> >> combo box currently contains the following items:
>> >>
>> >> User instructions (which is what you should do first)
>> >> Start a new drawing (which is what you should do next)
>> >> Draw a line
>> >> Draw a rectangle
>> >> Draw a circle
>> >> Draw an ellipse
>> >> Draw a polyline
>> >> Draw a polygon
>> >> Write drawing file (which is what you should do next to last)
>> >> Stop program (which is what you should do last)
>> >>
>> >> When you press the Enter key on the item labeled "Start a new 
>> >> drawing,"
>> an
>> >> empty SVG page of a specified size with optional title and description
>> >> attributes will be created in memory.
>> >>
>> >> When you press the Enter key on the item labeled "Write drawing file",
>> >> that
>> >> SVG page will be written to an output SVG file with a name of your
>> >> choosing
>> >> and an extension of .svg.
>> >>
>> >> Between starting a new drawing and writing the drawing file, you can 
>> >> add
>> >> elements for any number of any of the six shapes (which are the SVG
>> basic
>> >> shapes) in any order to the SVG page.
>> >>
>> >> When you press the Enter key on a shape item, you will land on a form
>> that
>> >> allows you to enter the most commonly used attributes for that shape.
>> Fill
>> >> in the blanks, check the check boxes (if any), and finally push the
>> button
>> >> labeled "Push to draw ---" to add the shape element to the SVG page. 
>> >> You
>> >> can
>> >> navigate up and down the the form with the tab key and shift-tab.
>> >>
>> >> I would appreciate receiving feedback in at least the following areas.
>> >> Feedback in other areas not listed below will be appreciated also.
>> >>
>> >> 1. Will the program be accessible to a blind student? What could be 
>> >> done
>> >> to
>> >> improve accessibility?
>> >>
>> >> 2. Will the navigation structure of the program be functionally useful
>> to
>> >> a
>> >> blind student? What could be done to improve the navigational
>> >> functionality
>> >> and make the program easier to use?
>> >>
>> >> 3. Will the "fill-in-the-blanks" concept for creating technical 
>> >> diagrams
>> >> and
>> >> drawings, such as vector diagrams and free-body diagrams, be useful to 
>> >> a
>> >> blind student? If so, which of the many additional capabilities of 
>> >> SVG,
>> >> such
>> >> as arcs, paths, etc., would be appropriate as an upgrade to the 
>> >> program.
>> >> (I'm already planning on adding the ability to create text elements. I
>> >> just
>> >> haven't resolved all the questions regarding fonts yet.)
>> >>
>> >> 4. To what extent is the output SVG file compatible with graphics
>> >> embossers
>> >> that can work with SVG files as input? What could be done to improve
>> that
>> >> compatibility?
>> >>
>> >> Thank you,
>> >>
>> >> Dick Baldwin
>> >>
>> >> --
>> >> Richard G. Baldwin (Dick Baldwin)
>> >> Home of Baldwin's on-line Java Tutorials
>> >> http://www.DickBaldwin.com
>> >>
>> >> Professor of Computer Information Technology
>> >> Austin Community College
>> >> (512) 223-4758
>> >> mailto:Baldwin at DickBaldwin.com
>> >> http://www.austincc.edu/**baldwin/ <http://www.austincc.edu/baldwin/>
>> >> ______________________________**_________________
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>> lacy925%40gmail.com<
>> http://www.nfbnet.org/mailman/options/blindmath_nfbnet.o
>> rg/lacy925%40gmail.com>
>> >>
>> >
>> >
>> > ______________________________**_________________
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>>
>>
>>
>> --
>> Richard G. Baldwin (Dick Baldwin)
>> Home of Baldwin's on-line Java Tutorials
>> http://www.DickBaldwin.com
>>
>> Professor of Computer Information Technology
>> Austin Community College
>> (512) 223-4758
>> mailto:Baldwin at DickBaldwin.com
>> http://www.austincc.edu/baldwin/
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>
>
>
> -- 
> Richard G. Baldwin (Dick Baldwin)
> Home of Baldwin's on-line Java Tutorials
> http://www.DickBaldwin.com
>
> Professor of Computer Information Technology
> Austin Community College
> (512) 223-4758
> mailto:Baldwin at DickBaldwin.com
> http://www.austincc.edu/baldwin/
> _______________________________________________
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