Hello,
I'm having trouble identifying tree elements. Let me explain with an
example.
Let's say I have a Tree object which contains a few TreeItem objects.
Each TreeItem object in turn contains a few TreeItems and a button.
These buttons are generated via loops and so do not have an object
name associated (eg. they all must call the same event handler). Each
button is set to trigger the same function (let's say buttonClicked
(Widget sender)) when clicked on.
My problem now is that within the buttonClicked(Widget sender) method
I don't know how to figure out which branch (or TreeItem) that
particular button belongs to.
Here's a visual example:
Tree:
[ -] Fruits
- Apple
- Orange
- [ ADD ] (<--- This is a Button widget)
[ -] Vegetables
- Carrot
- Eggplant
- Pepper
- [ ADD ] (<--- This is a Button widget)
[+] Dairy
All the button click events call this function:
private void buttonClicked(Widget sender){
// How can I get the parent tree index via sender?
}
Let's say the user clicks on the "ADD" button which is under the
"Fruits" subtree. How can I know that the button called belongs to
"Fruits"?
I would like to have something like:
int treeindex = sender.getParent().getPositionInTree();
And have it return for example 0 for fruits, 1 for Vegetables, 2 for
Dairy, etc.
I've looked through the JavaDoc but nothing jumped out at me right
away.
Maybe I'm missing something obvious.
Thanks in advance for any help.
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