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Question

Answer 1

A:

RTFD is a particularly easy one, luckily. Check out the readRTFDFromFile: and writeRTFDToFile:atomically: methods of NSText.

From the NSText Class Reference:

readRTFDFromFile:

Attempts to read the RTFD file at path, returning YES if successful and NO if not.

- (BOOL)readRTFDFromFile:(NSString *)path

Discussion
path should be the path for an .rtf file or an .rtfd file wrapper, not for the RTF file within an .rtfd file wrapper.

If you're coming from NSURL, do something like this:

[textView readRTFDFromFile:[[self fileURL] path]];

To be safe, call [[self url] isFileURL] first.

Carl Norum 2010-02-15 18:30:54

I tried your snippet and achieved the following: The NSDocument window was opened, the title was updated to the RTFD file's name but the NSTextView is still blank.This is my code: if ([typeName isEqualToString:@"Rich Text with Attachments"]) { NSString *urlString = [[self fileURL] absoluteString]; NSLog(@"%@",urlString); [textView readRTFDFromFile:urlString]; return YES; }

David Schiefer 2010-02-16 12:32:19

@David, you don't want the URL string, just a path to the file. I made a quick test app, and this worked for me: `[textView readRTFDFromFile:@"/Users/carl/Desktop/file.rtfd"]`

Carl Norum 2010-02-16 18:15:38

the reason i have an URL string is because my app is based on the NSDocument structure, NSDocument returns an URL as filepath only, which I then converted to a string...

David Schiefer 2010-02-16 18:48:24

@David, so convert it....

Carl Norum 2010-02-16 18:52:18

I have by doing this: NSString *urlString = [[self fileURL] absoluteString]; and then loading it via readRTFDFromFile:.The filepath is right on NSLog, but it still wont load :(

David Schiefer 2010-02-16 19:01:43

@David, on another test, the trailing `/` is ok, just not the `file://localhost/`.

Carl Norum 2010-02-16 19:03:34

@David, that's still a URL. Change it to `@"/Users/David/Documents/Coursework/Geography Coursework.rtfd"`. How are you getting the URL?

Carl Norum 2010-02-16 19:04:30

still nothing...again the title of the Window updates, but the document remains blank.The URL is obtained through the [NSDocument fileURL] call which returns a NSURL.

David Schiefer 2010-02-16 19:14:01

@David, it's not that hard to convert a URL to a local path: http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Foundation/Classes/NSURL_Class/Reference/Reference.html#//apple_ref/occ/instm/NSURL/path

Carl Norum 2010-02-16 19:26:39

@David, tested and works. I'll edit the answer. You should read some of the documentation, I think.

Carl Norum 2010-02-16 19:38:10

i know it isn't,but i already tried that (it now returns "/ReadMe.rtfd").No avail.Same result?Title changes but NSTextView does not. I am seriously wondering why it fails :/

David Schiefer 2010-02-16 19:38:14

I think my approach is wrong? because the implementation is: -(BOOL)readFromFileWrapper:(NSFileWrapper *)fileWrapper ofType:(NSString *)typeName error:(NSError **)outErrorMaybe I need to approach it differently ?

David Schiefer 2010-02-16 19:40:11

Why would you override `readFromFileWrapper:` when you don't have to? I give up.

Carl Norum 2010-02-16 19:42:50

The compiler tells me that readFromFileWrapper:ofType:error has to be implemented and overwritten to handle file packages.

David Schiefer 2010-02-16 19:44:22

To get a path string from an `NSURL`, use `[yourURL path]` not `[yourURL absoluteString]`.

Rob Keniger 2010-02-16 23:57:08

Issue solved, I barked up the wrong tree.This is the answer for NSDocument: mString = [[NSAttributedString alloc] initWithRTFDFileWrapper:fileWrapper documentAttributes:nil];

David Schiefer 2010-02-17 11:58:21

Answer 2

A:

I tried your snippet and achieved the following:

The NSDocument window was opened, the title was updated to the RTFD file's name but the NSTextView is still blank.

I was pretty convinced that my code would open it, since I got myself the URL from the NSDocument instance, converted it to an NSString and sent it to the textview...

if ([typeName isEqualToString:@"Rich Text with Attachments"]) {
        NSString *urlString = [[self fileURL] absoluteString];
        NSLog(@"%@",urlString);
        [textView readRTFDFromFile:urlString];

        return YES;
    }

The Log returned this:

file://localhost/Users/David/Documents/Coursework/Geography%20Coursework.rtfd/

So it should work?

David Schiefer 2010-02-16 12:34:18

@David, it's a little weird to answer your own question like this; please edit your original post to add more details if you like.

Carl Norum 2010-02-16 17:45:38

NSString *urlString = [[self fileURL] path];

geowar 2010-07-28 19:37:35

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