Dear list,
I'm trying to put together a UI which has a view-based table view. Each item in
the table view has advanced settings which can be accessed by toggling an
'advanced' button on the item's view. The row then expands to reveal the
advanced items. I have a couple of problems:
1) The advanced components (extra buttons etc) move when the row's view
resizes. I rather just want them to be hidden out of view.
2) When expanding a row's view, I would like to scroll the table so that the
full view is visible. I was trying to figure out a way to use
-scrollRectToVisible: but I would need to do that after the animation finishes,
I guess.
I have a test program setup to figure this all out (I'm new to view-based table
views!) where I have a button on each row's view which triggers a notification
which I handle in my table controller like this:
- (CGFloat)tableView:(NSTableView *)tableView heightOfRow:(NSInteger)row
{
CGFloat height = 24.0;
AThing *item = [[self items] objectAtIndex:row];
if (item.showAdvanced) {
height = 100.0;
}
return height;
}
- (void) handleAdvancedToggle:(NSNotification*)aNote
{
MHItemCellView *view = [aNote object];
NSInteger row = [self.tableView rowForView:view];
[NSAnimationContext beginGrouping];
[[NSAnimationContext currentContext] setDuration:0.25];
[self.tableView noteHeightOfRowsWithIndexesChanged:[NSIndexSet
indexSetWithIndex:row]];
NSRect r = [self.tableView rectOfRow:row];
[self.tableView scrollRectToVisible:r];
[NSAnimationContext endGrouping];
}
So, in short, the expanding of the rows works nicely, except for the NSViews
which should be hidden/revealed move in the view, despite having deselected the
necessary struts in IB (haven't tried auto-layout here yet). And, I need a
better way to scroll the full row to be visible.
Can anyone suggest how to improve on this? Is this even the right approach for
what I'm trying to achieve?
Many thanks,
Martin
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