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

Tue Aug 30 03:20:22 UTC 2011

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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>
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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/