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

Tue Aug 30 12:59:42 UTC 2011

That is very bad news! So, I guess it is back to the drawing board on SWT.

Can you tell if there was a runtime error or exception. If so, an error
message should probably appear in the command-line window.

If this happens to anyone else, please let me know.

Thanks,
Dick Baldwin

On Tue, Aug 30, 2011 at 7:15 AM, Amanda Lacy <lacy925 at gmail.com> wrote:

> It closes when I press the button labeled "push to draw."
>
> ----- Original Message ----- From: "Richard Baldwin" <
> baldwin at dickbaldwin.com>
> To: "Blind Math list for those interested in mathematics" <
> blindmath at nfbnet.org>
> Sent: Tuesday, August 30, 2011 12:59 AM
>
> Subject: Re: [Blindmath] First attempt at an SWT/SVG based drawing program
>
>
>  Hi Amanda,
>>
>> I'm a little concerned about part of your description having to do with
>> the
>> program closing.
>>
>> The program should only close when you have first selected the item in the
>> combo box that reads "Stop program" and then you press Enter. I don't
>> think
>> that pressing space in the combo box should do anything.
>>
>> However, pressing either space or the Enter key on a button should cause
>> the
>> action identified by that button to occur.
>>
>> After you "Start a new drawing" by pressing Return on that item in the
>> combo
>> box, filling out the form, and pushing the button on that form, you should
>> be able to select and draw as many different shapes as you need before
>> writing the output file and closing the program.
>>
>> After drawing all of the shapes that you need, you should press Enter on
>> "Write
>> drawing file" in the combo box.  This will open a dialog that you can use
>> to
>> specify a file name. After specifying the file name, press space or Return
>> on the button that reads "Push to write the file" to actually cause the
>> output SVG file to be written. Unless you specify a path along with the
>> file
>> name, the SVG file should be written into the same folder as the one
>> containing the executable jar file.
>>
>> Finally, after starting a new drawing, adding shapes to the drawing, and
>> writing the SVG document into an output SVG file, you should press Enter
>> on
>> the item in the combo box that reads "Stop program." That should close the
>> program.
>>
>> Is that how is it working, or is the program closing prematurely when you
>> press the button to "cause the shape to be drawn?"
>>
>> Thanks,
>> Dick Baldwin
>>
>> On Mon, Aug 29, 2011 at 11:36 PM, Amanda Lacy <lacy925 at gmail.com> wrote:
>>
>>  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@**
>>>>> nfbnet.org <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>
>>>>> <**http://www.austincc.edu/****baldwin/SWT-SVG/SVGDraw01.jar<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/>
>>>>> <http://www.austincc.**edu/**baldwin/<http://www.austincc.edu/**baldwin/>
>>>>> ><
>>>>> http://www.austincc.edu/****baldwin/<http://www.austincc.edu/**baldwin/><
>>>>> http://www.austincc.edu/**baldwin/ <http://www.austincc.edu/baldwin/>
>>>>> >>
>>>>> >> ______________________________******_________________
>>>>> >> Blindmath mailing list
>>>>> >> Blindmath at nfbnet.org
>>>>> >>
>>>>> http://www.nfbnet.org/mailman/******listinfo/blindmath_nfbnet.****org<http://www.nfbnet.org/mailman/****listinfo/blindmath_nfbnet.**org>
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>>>>> >
>>>>> <
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>>>>> >
>>>>>
>>>>> >
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>>>>> >
>>>>> >>
>>>>> lacy925%40gmail.com<
>>>>> http://www.nfbnet.org/mailman/****options/blindmath_nfbnet.o<http://www.nfbnet.org/mailman/**options/blindmath_nfbnet.o>
>>>>> <h**ttp://www.nfbnet.org/mailman/**options/blindmath_nfbnet.o<http://www.nfbnet.org/mailman/options/blindmath_nfbnet.o>
>>>>> >
>>>>>
>>>>> rg/lacy925%40gmail.com>
>>>>> >>
>>>>> >
>>>>> >
>>>>> > ______________________________******_________________
>>>>> > Blindmath mailing list
>>>>> > Blindmath at nfbnet.org
>>>>> >
>>>>> http://www.nfbnet.org/mailman/******listinfo/blindmath_nfbnet.****org<http://www.nfbnet.org/mailman/****listinfo/blindmath_nfbnet.**org>
>>>>> <http://www.nfbnet.org/**mailman/**listinfo/blindmath_**nfbnet.org<http://www.nfbnet.org/mailman/**listinfo/blindmath_nfbnet.org>
>>>>> >
>>>>> <
>>>>> http://www.nfb
>>>>> net.org/mailman/listinfo/****blindmath_nfbnet.org<http://net.org/mailman/listinfo/**blindmath_nfbnet.org>
>>>>> <http://**net.org/mailman/listinfo/**blindmath_nfbnet.org<http://net.org/mailman/listinfo/blindmath_nfbnet.org>
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>>>>> >
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>>>>> >
>>>>> >
>>>>> baldwin%40dickbaldwin.com<
>>>>> http://www.nfbnet.org/mailman/****options/blindmath_nf<http://www.nfbnet.org/mailman/**options/blindmath_nf>
>>>>> <http://**www.nfbnet.org/mailman/**options/blindmath_nf<http://www.nfbnet.org/mailman/options/blindmath_nf>
>>>>> >
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>>>>> org/baldwin%40dickbaldwin.com<http://bnet.org/baldwin%40dickbaldwin.com>
>>>>> >
>>>>>
>>>>> >
>>>>> >
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> 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/><
>>>>> http://www.austincc.edu/**baldwin/ <http://www.austincc.edu/baldwin/>>
>>>>> ______________________________****_________________
>>>>> Blindmath mailing list
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>>>>> <http://www.nfbnet.org/**mailman/listinfo/blindmath_**nfbnet.org<http://www.nfbnet.org/mailman/listinfo/blindmath_nfbnet.org>
>>>>> >
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>>>>> >
>>>>>
>>>>> t.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/<http://www.austincc.edu/**baldwin/><
>>>> http://www.austincc.edu/**baldwin/ <http://www.austincc.edu/baldwin/>>
>>>> ______________________________****_________________
>>>> Blindmath mailing list
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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/ <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/