Re: How to indent in NSOutlineView?
Re: How to indent in NSOutlineView?
- Subject: Re: How to indent in NSOutlineView?
- From: "Aman Alam" <email@hidden>
- Date: Wed, 9 Jul 2008 11:17:56 +0530
I tried the same code earlier. This will indent the text displaying in cell
but the disclosure button still at its old place.
In normal case, when there is child item in NSOutlineView then the button
gets indented. But in my case the button doesn't get indent.
The most likely solution, off the top of my head, would involve
subclassing the NSOutlineView and overriding some method to tell Cocoa to
indent some rows more than others.
Here is one possibility. I don't know that it works, but it might. Try
it and see.
// you would need to subclass NSOutlineView, if you haven't already and
override this method
- (NSInteger)levelForItem:(id)item
{
NSInteger level = [super levelForItem:item];
if ([item needsExtraIndenting] == YES) // whatever your test is here
level++;
return level;
}
Another possibility would involve overriding something else, maybe like
this:
- (NSRect)frameOfCellAtColumn:(NSInteger)column row:(NSInteger)row
{
NSRect rc = [super frameOfCellAtColumn:column row:row];
if ([[self itemAtRow:row] needsExtraIndenting] == YES) // whatever your
test is here
{
CGFloat indent = [self indentationPerLevel];
rc.origin.x += indent;
rc.size.width -= indent;
}
return rc;
}
Again, I don't know that this works, but this is the type of solution I
would look for first. Look through NSOutlineView.h and NSTableView.h for
interesting methods that you can override and customize. That's what I
did to find these two.
john
On Jul 8, 2008, at 3:48 AM, Aman Alam wrote:
Is there a way to indent main headings in NSOutlineView as follows: -
Heading 1
Item
Item
Heading 2
Item
Heading 2.1
Item
Item
Heading 3
Item
I tried many ways to indent the headings but not succeeded. The
disclosure triangle doesn't indent with headings. I required heading
within heading and the heading should be independent of its parent
heading. The parent heading may contain any number of items within.
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