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Creating a GUI With JFC/Swing
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Drag and Drop and Data Transfer
Adding Cut, Copy and Paste (CCP)
So far our discussion has centered mostly around drag and drop support.
However, it is an easy matter to hook up cut or copy or paste (ccp)
to a transfer handler. This requires the following steps:
- Ensure a transfer handler is installed on the component.
- Create a manner by which the
TransferHandler's
ccp support can be invoked. Typically this involves
adding bindings to the input and action maps to have the
TransferHandler's ccp actions invoked in
response to particular keystrokes.
- Create ccp menu items and/or buttons.
(This step is optional but recommended.)
This is easy to do with text components but requires a bit
more work with other components, since you need logic to determine which
component to fire the action on. See
CCP in a non-Text Component for more information.
- Decide where you want to perform the paste. Perhaps above or below
the current selection. Install the logic in the
importData
method.
Next we look at a cut and paste example that feature a text component.
