Unmerged bug fix for label scrolling issue in alpha3_layout_final jar

[Robert Leach]

USE CASE: WHAT DO YOU WANT TO DO?

smoothly scroll the labels

STEPS TO REPRODUCE AN ISSUE (OR TRIGGER A NEW FEATURE)

1. Open a file with long labels (e.g. small_133_x_133.cdt)
2. Hover over the column and/or row labels
3. Scroll the mouse's scroll wheel

CURRENT BEHAVIOR

All labels bounce around occassionally. See screen recording:

https://bitbucket.org/TreeView3Dev/treeview3/downloads/jumpy_label_scroll_bug_is_back.mov

Note the screen recording includes an old jar with the bug fixed and the recent new jar with the bug evident.

EXPECTED BEHAVIOR

Only long labels move, and they move smoothly. See screen recording:

https://bitbucket.org/TreeView3Dev/treeview3/downloads/jumpy_label_scroll_bug_is_back.mov

Note the screen recording includes an old jar with the bug fixed and the recent new jar with the bug evident.

DEVELOPERS ONLY SECTION SUGGESTED CHANGE (Pseudocode optional)

I believe this was the elimination of a repaint that existed before the new scrolling features.

FILES AFFECTED (where the changes will be implemented) - developers only

LEVEL OF EFFORT - developers only

minor

COMMENTS

Chris and I have already discussed this and he says it's just a change that was made after he merged master into his feature branch, but I just wanted to document it here so that we can double-check after the merge to master that it's been dealt with.

[Christopher Keil]

Change was not merged in in feature branch due to very long dev time. Was later merged in and issue is now resolved by caa4a78 .

[Anastasia Baryshnikova]

Checked in 20151118, issue doesn't seem to occur anymore.

[Robert Leach]

Removing milestone: Navigation (automated comment)