Thanks to all who gave advice.
I'll give a description of what I did. If you have any further
comments or suggestions please come forth!
In MainMenu.xib
An NSPanel that contains an NSOutlineView
An Application Delegate that has a reference to the NSOutlineView
In MyDocument.m
- (id)init
{
self = [super init];
if (self) {
// Add your subclass-specific initialization here.
// If an error occurs here, send a [self release] message and
return nil.
m_treeDataSource = [[[TreeDataSource alloc] init] retain];
m_treeDelegate = [[[TreeDelegate alloc] init] retain];
if(!m_treeDataSource || !m_treeDelegate)
{
[self release];
return nil;
}
m_appDelegate = [NSApp delegate];
m_tree = m_appDelegate->m_tree;
[m_tree retain];
[m_tree setDataSource:m_treeDataSource];
[m_tree setDelegate:m_treeDelegate];
}
return self;
}
- (void)windowDidBecomeKey:(NSNotification *)notification {
[m_tree setDataSource:m_treeDataSource];
[m_tree setDelegate:m_treeDelegate];
}
MyDocument.m has methods to manage m_treeDataSource
- (IBAction)root:(id)sender {
TreeItem* root = [[[TreeItem alloc] init] retain];
root->m_parent = nil;
root->m_itemName = [m_root stringValue]; // m_root is a TextField
[m_treeDataSource->m_roots addObject:root];
}
- (IBAction)data:(id)sender {
[m_tree reloadData];
}
Still have some problems that I'll ask some questions about in a bit.
db
On Dec 30, 2009, at 12:55 AM, Graham Cox wrote:
On 30/12/2009, at 4:23 PM, David Blanton wrote:
In a document based app I want to have some 'inspectors" that
reflect what i sgoing on in the document. These inspectors should
float.
If I make NSPanel's for the inspector in MyDocument.xib then each
instance of a document gets its own set of inspectors.
I would like to have just one set of inspectors whose contents
change as different documents are activated.
Putting the inspectors in MainMenu.xib will let me make just 'one
set' for all documents but I am unsure as to how to get a reference
from the inspector to the document given different xib's.
Suggestion please.
Each document your application opens will be a new instance built
from the same nib. So even if there were a way to 'connect' objects
in one nib to objects in another, it wouldn't help you - different
documents will be made active at different times and your inspectors
need to be aware of those activations.
A simple approach is to make your inspectors respond to all window
did become main/resign main notifications, and then ask the document
controller singleton for -currentDocument at those times. It can
then figure out if the document itself has changed as a result of
the active window change and do whatever it needs to do to inspect
the document contents.
Setting up the notifications is best done in the inspector
controller's -awakeFromNib method.
--Graham
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