Create a class to handle color manipulation for views

[Michael Reuter]

A class should be created that contains all of the routines necessary to handle updating color selections and ranges for the views.

[Michael Reuter]

In [13967]:

First cut at color updater class. This refs #3552.

[Michael Reuter]

In [13995]:

Fixing function signatures and adding forgotten declaration. This refs #3552.

[Michael Reuter]

In [14028]:

Changing function call signatures. This refs #3552.

[Michael Reuter]

In [14111]:

Pushing changes into trunk. This refs #3545, #3552, #3553.

[Michael Reuter]

In [14136]:

Adding doxygen to class definition. This refs #3552.

[Michael Reuter]

In [14137]:

Make header guard look like other files. This refs #3552.

[Michael Reuter]

There isn't a really good way to test this. The class developed here is now used by ViewBase to handle color scaling changes.

[Owen Arnold]

Tested code by execution and by code inspection. Color updating works.

As a future consideration it would be good to tie thresholding in with color updates. i.e. Ignore signal values outside the range 1 - 1000 and therefore adapt the color range to use these as limits. This would be done under another ticket if at all.

[Stuart Campbell]

This ticket has been transferred to github issue ​4399