[iOliverC]

Hey guys,

I've got a text view that accepts drag and drop, basically, what I am wanting is when I drop an image file onto it, the size and width of it is made into a string and inserted into the text view. I can get the file path when it is dropped, but can't find out how to get the size (height and width) of the file dropped. I looked in NSFileManager and found something called contentsAtPath:, but I'm not sure if that is correct. Below is my current code:

Code:
- (BOOL)handleDroppedFile:(NSString *)filename forTextView:(NSTextView *)sender
{
[docTextView insertText:[NSString stringWithFormat:@"<img src=\"%@\" width=\"%@\" height=\"%@\" alt=\"\" />", filename]];
}

filename, is for example: /Volumes/Home/Users/olivercameron/Sites/images/header.png

Any help is appreciated,
Oliver

[Chuckit]

Create an NSImage with the file and get its size. Something along these lines:

Code:
- (BOOL)handleDroppedFile:(NSString *)filename forTextView:(NSTextView *)sender
{
NSSize imageSize;
// I'm separating the format string just to make it more board-friendly
NSString *formatString = @"<img src=\"%@\" width=\"%f\" height=\"%f\" alt=\"\" />";
NSImage *droppedImage = [[NSImage alloc] initWithContentsOfFile:filename];
if (!droppedImage)
{
    return NO;
}
imageSize = [droppedImage size];
[droppedImage release]; // We only needed it to get the size
[docTextView insertText:[NSString stringWithFormat:formatString, filename, imageSize.width, imageSize.height]];
}

[iOliverC]

Wow!

THanks a whole lot for the quick response, and the code works!

One little thing though, when I put an image thats 32 x 32, the code looks like this:

<img src="/Volumes/Home/Users/olivercameron/Sites/Talacia/images/codestyles.png" width="32.000000" height="32.000000" alt="" />

Note the .000000, i'm not quite sure how to get rid of this. Any idea?

[iOliverC]

Because this is kinda related with this, I have another little question .

I thought I knew how but I can't remember where I saw it, basically what I want to do is trim the file path. So it maybe only shows the last directory or so. So:

Volumes/Home/Users/olivercameron/Sites/Talacia/images/codestyles.png

Would only be:

images/codestyles.png

Any help is appreciated again :-).

Thanks,
Oliver

[Chuckit]

Originally posted by iOliverC:
I thought I knew how but I can't remember where I saw it, basically what I want to do is trim the file path. So it maybe only shows the last directory or so. So:

Volumes/Home/Users/olivercameron/Sites/Talacia/images/codestyles.png

Would only be:

images/codestyles.png

See the NSString method pathComponents. You can pick and choose which you want from there.

One little thing though, when I put an image thats 32 x 32, the code looks like this:

<img src="/Volumes/Home/Users/olivercameron/Sites/Talacia/images/codestyles.png" width="32.000000" height="32.000000" alt="" />

Note the .000000, i'm not quite sure how to get rid of this. Any idea?

It's standard printf formatting, so you can just change the places where it says %f to %.0f. That will tell it not to be precise to any decimal places.

[iOliverC]

Thanks, the printing thing worked

Thanks
Oliver