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HandleGraphicsSetGet class

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HandleGraphicsSetGet class

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10 Mar 2011 (Updated )

An extension of the handle graphics set/get class HGSETGET.

Editor's Notes:

This file was selected as MATLAB Central Pick of the Week

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Description

The HGSETGETPLUS class allows the user to:

* Implement a handle class with a get/set interface.
* Define validation criteria for properties that are checked when the
method SET is called.
* Display those criteria for a given property or all the properties.
* Set defaults for the properties.
* Allow a variety of input types in a consistent manner.

Example:
>> h = hgsetgetplusTemplate

h =

  hgsetgetplusTemplate handle

  Properties:
    length: 0
      unit: 'm'

  Methods, Events, Superclasses

>> set(h)
    length: 'double -and- scalar'
      unit: '[ {m} | cm ]'

>> set(h,'unit','kg')
??? Error using ==> setOneProperty
Expected kg to match one of these strings:

  m, cm

The input, 'kg', did not match any of the valid strings.

------
I would like to thank Jiro Doke for some ideas that got me started and for encouraging me to submit this.

Acknowledgements

This file inspired Hgsetgetex: Extension Of Hgsetget Class (V.2.5).

MATLAB release MATLAB 7.11 (R2010b)
Other requirements This class requires the MATLAB builtin class hgsetget. It contains a folder with unit tests. To run them, the <http://www.mathworks.com/matlabcentral/fileexchange/22846-matlab-xunit-test-framework Matlab xUnit Test Framework> is needed.
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Comments and Ratings (4)
22 Nov 2014 Andrew Newell

Martin, sorry for such a slow reply - I don't recall ever being notified of your comment.

I don't consider this behavior a bug. It's part of the design. I chose to insist that the line

S = configureDefault(obj);

is always present in the configure method. In the template for the config method, this line is preceded by the comment

% Keep this line! The structure needs to be initialized.

It keeps the behavior simple and predictable.

25 Apr 2014 Martin

Nice and useful submission, have just started using it.

However, a slight bug appeared when I defined a configuration without any choices, caused by line 21 in configToString.m:
if ~isempty(config.choices)

It could be changed to:
if isfield(config,'choices') && ~isempty(config.choices)

15 Mar 2011 Eric Johnson

This is an excellent submission. My favorite feature is the enumeration of allowable property values for an object. As the reviewer above commented, this is well organized and documented.

10 Mar 2011 Matthew

Professional work. Clear documentation and examples. I also appreciate the unit test provided, which adds greatly to my confidence in this work.
Thanks.

Updates
18 Mar 2011

Added an acknowledgement

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