cocoa Drag-n-Drop?

[Hans-Christoph Steiner-2]

Hey all,

I've been wanting to play with tkdnd for a while now, there is lots of  
potential there.  But it doesn't exist for Mac OS X, AFAIK.  Any  
chance that it made it into Tk Cocoa, or that its now easier to port  
tkdnd to cocoa?

.hc
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[Kevin Walzer-5]

On 11/4/09 1:42 PM, Hans-Christoph Steiner wrote:

>
> Hey all,
>
> I've been wanting to play with tkdnd for a while now, there is lots of
> potential there.  But it doesn't exist for Mac OS X, AFAIK.  Any
> chance that it made it into Tk Cocoa, or that its now easier to port
> tkdnd to cocoa?
>
> .hc
>

Funny you should ask about TkDND...

I've begun work on a port of TkDND 2.0 to OS X, using the Cocoa
drag/drop API's.

This is the most challenging Tk project I've ever undertaken because it
involves interacting with Tk's C API, which I don't have much experience
with (my other Tk-Cocoa integration projects involved Tcl calls into
Cocoa methods, for stuff like changing the dock icon while the app is
running). As a result, my work is in a very early phase, I'm learning a
lot as I go, and I don't expect any releases in the immediate future.

The initial plan is to support dragging files and text into a Tk window.
That's what TkDND on Unix supports. Dragging things out of a Tk window
into other app windows or the Finder will come later, if time and my
skills allow.

I'm not sure if it will be feasible to support Tk-Carbon or not with
this. At a minimum there are different ways to obtain a
pointer/reference to a Tk window in Carbon and Cocoa. If this can be
done easily, with a small amount of code wrapped in an ifdef switch and
a configure flag, I'll try to support Carbon. However, I won't write a
Carbon dnd implementation.

I'd welcome testing assistance when the time comes. And, if anyone wants
to assist with the actual coding in Objective-C, that's welcome too.

Thanks,
Kevin

--
Kevin Walzer
Code by Kevin
http://www.codebykevin.com

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[Hans-Christoph Steiner-2]

On Nov 4, 2009, at 5:30 PM, Kevin Walzer wrote:

> On 11/4/09 1:42 PM, Hans-Christoph Steiner wrote:
>>
>> Hey all,
>>
>> I've been wanting to play with tkdnd for a while now, there is lots  
>> of
>> potential there.  But it doesn't exist for Mac OS X, AFAIK.  Any
>> chance that it made it into Tk Cocoa, or that its now easier to port
>> tkdnd to cocoa?
>>
>> .hc
>>
>
> Funny you should ask about TkDND...
>
> I've begun work on a port of TkDND 2.0 to OS X, using the Cocoa
> drag/drop API's.
>
> This is the most challenging Tk project I've ever undertaken because  
> it
> involves interacting with Tk's C API, which I don't have much  
> experience
> with (my other Tk-Cocoa integration projects involved Tcl calls into
> Cocoa methods, for stuff like changing the dock icon while the app is
> running). As a result, my work is in a very early phase, I'm  
> learning a
> lot as I go, and I don't expect any releases in the immediate future.
>
> The initial plan is to support dragging files and text into a Tk  
> window.
> That's what TkDND on Unix supports. Dragging things out of a Tk window
> into other app windows or the Finder will come later, if time and my
> skills allow.
>
> I'm not sure if it will be feasible to support Tk-Carbon or not with
> this. At a minimum there are different ways to obtain a
> pointer/reference to a Tk window in Carbon and Cocoa. If this can be
> done easily, with a small amount of code wrapped in an ifdef switch  
> and
> a configure flag, I'll try to support Carbon. However, I won't write a
> Carbon dnd implementation.
>
> I'd welcome testing assistance when the time comes. And, if anyone  
> wants
> to assist with the actual coding in Objective-C, that's welcome too.
>
> Thanks,
> Kevin

Great news!  I am not a Cocoa coder nor a Tk C coder, so I don't know  
how much help I can be.  But I will definitely be an avid tester.  My  
guess is that since Carbon is a totally different API, it won't be  
trivial to add Carbon support.  But worth looking tp make sure.

.hc


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the possession of everyone, and the receiver cannot dispossess himself  
of it.            - Thomas Jefferson



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