Hello all, once again.
Im trying to reproduce something similar to the name formatting of Aperture
when importing images. So the idea is to allow the user to to set a format by
dragging "tokens" into a NSTokenField, to later apply the format into when
required.
So these are my theories on how to approach the beast:
1. Create a Custom Object which has ivars, NSImage image, and a NSString for
the formatValue, so i.e I can have an object with a format value @"YYYY", and
the image an image with shows Year Number. and so on for month, day and
counter.
2. Set the images in the view bellow the NSTokenField.
3. Implement D-n-D, for these I guessI will have to subclass NSTokenField to
be able to implement there the necessarily dropping methods.
3. When dropping read the pasteboard and get the CustomObject's formatValue
string and somehow append that string to what the NSTokenField (self in this
case) has.
4. In the NSTokenField delegate implement:
tokenField:representedObjectForEditingString:,
tokenField:representedObjectForEditingString:, so I can display the string in
the encapsulated style, (the blue rounded background).
I have some doubts in 3 and 4, in 3 because I saw in the
NSTokenFieldCellDelegate a method called:
• – tokenFieldCell:readFromPasteboard:
• – tokenFieldCell:writeRepresentedObjects:to
So I dunno how this may help me for the Drag and Drop.
and on 4th, because I dunno if the first delegate method will ever be called
due that Im not typing directly but appending something in the TextField.
Anything else I shall have in mind to fully implement this req. ?
Thanks in advance
Gustavo
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