Setting text on Cocoa

[Matthew Brush]

Hi,

I'm having trouble setting the text on a ScintillaView in a
document-based OSX/Cocoa application. I'm using the following code (as a
test) and nothing happens (no text appears in the view):

- (BOOL) readFromData:(NSData *)data ofType:(NSString *)typeName
error:(NSError **)outError
{
BOOL readSuccess = NO;
NSString *fileContents = [[NSString alloc] initWithData:data
encoding:NSUTF8StringEncoding];

if (fileContents) {
readSuccess = YES;
[mEditor setString:fileContents];
// testing to see if there is contents (there is)
// NSLog("File contents: %@", fileContents);
// testing to see if any text works (it doesn't)
//[mEditor setString:@"Hello world"];
[fileContents release];
}

return readSuccess;
}

I'm brand new to Cocoa and Objective-C so it's entirely likely I'm
missing something really obvious, but no matter what I try, I can't seem
to make any text appear in the ScintillaView (unless I type it manually).

Any pointers would be greatly appreciated.

Cheers,
Matthew Brush

[Mike Lischke]

Matthew,

> - (BOOL) readFromData:(NSData *)data ofType:(NSString *)typeName error:(NSError **)outError
> {
> BOOL readSuccess = NO;
> NSString *fileContents = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
>
> if (fileContents) {
> readSuccess = YES;
> [mEditor setString:fileContents];
> // testing to see if there is contents (there is)
> // NSLog("File contents: %@", fileContents);
> // testing to see if any text works (it doesn't)
> //[mEditor setString:@"Hello world"];
> [fileContents release];
> }
>
> return readSuccess;
> }
>
> I'm brand new to Cocoa and Objective-C so it's entirely likely I'm missing something really obvious, but no matter what I try, I can't seem to make any text appear in the ScintillaView (unless I type it manually).

That should work fine, provided the file contents contains actually something and the editor is not read-only ([ScintillaView setEditable:]).

Mike
--
www.soft-gems.net

[Michael Mullin]

Here's how I do it Matthew

http://bazaar.launchpad.net/~masmullin/codeassistor/trunk/view/head:/src/ui/mac/MyEditor.mm#L311

[Matthew Brush]

Hi,

It turned out that the data/text was OK but the ScintillaView (mEditor)
hadn't been initialized by the time readFromData got called (I was doing
it in awakeFromNib). I was kind of expecting such a programmer error to
blow up in my face like it does with C :)

Thanks for your help (and code).

Cheers,
Matthew Brush

[Matthew Brush]

On 02/15/2012 10:43 AM, Michael Mullin wrote:
> Here's how I do it Matthew
>
> http://bazaar.launchpad.net/~masmullin/codeassistor/trunk/view/head:/src/ui/mac/MyEditor.mm#L311
>

Thanks for the example, it helped. My confusion was with how the
document controller stuff worked and which order the functions got
called in.

Cheers,
Matthew Brush