A small program derived from the tree-as-container example. Instead of using Fl_Tree_Item widgets, I'm drawing them dynamically. A Fl_Tree_Item consists of a checkbox and a label, except if the item is in "edit mode", when it is a checkbox and a Fl_Input. To enter "edit mode", the tree item must be RE-selected.

The problem: when I try to edit an existing tree item, the mouse cursor disappears over the window. After that, only keyboard navigation works in the tree, and I can't seem to RE-select an item any longer [assuming that hitting space twice on an item should RE-select it].

I've been thrashing on this for a bit, and would appreciate some ideas on what I've done wrong.

I'm attaching my stripped down program. To reproduce the issue, do the following:

1. run the program

2. Make sure the item "Outline" is selected. [shows in green]

3. Press enter. A new item is created: a Fl_Input appears, enter some text. Press enter.

4. The new item should be highlighted in green at this point. Repeat step 3 a couple of times. You should have three tree child items with text.

5. With the mouse, click on the 2d item to select it, then click again to RE-select it.

6. The Fl_input appears: start typing some text.

As soon as I start typing text at step 6, the mouse disappears. Pressing enter to finish editing doesn't restore the mouse; up and down arrow work to move the selection focus among the tree items but pressing space twice on a focused item doesn't RE-select it.

My thanks for any advice!

Kevin