gaopeng wrote:
> Mathias wrote
>
>> It seems that your coloring got lost. It's not a good idea to use HTML
>> formatting anyway, marking the code in a way that it is transported in
>> text only mails should be preferred.
>
> that's right , I will take you advice in the following mails
>
>> Anyway, I wonder which part of the code you are referring to, but the
>> posted code is small enough to describe it completely.
>
> in facte , the function of the SwClipboardChangeListener::changedContents()
> and Invalidate() in the pre-function are what I want to know and the
>
>> This code evaluates whether the document is able to paste the provided
>> content at all ("IsPaste") and if perhaps more than one format is
>> supported ("IsPasteSpecial"). This information is stored in pView.
>>
>> Then the sfx2 framework is notified that possibly all UI elements
>> relating to the "Paste" and "Paste Special" functionality need a state
>> update, e.g. a disabled "Paste" button now might want to become enabled.
>> The "Invalidate" calls will not change the button state immediately,
>> they will trigger an update timer in SfxBindings that will do the
>> necessary updates some milliseconds later.
>
> now I understand what function of the
> SwClipboardChangeListener::changedContents() is changing some state of
> current document . Is that's right ?
Yes, the only purpose of this function is to make sure that interested
objects like e.g. toolbox buttons etc. are notified that the content of
the clipboard has changed.
Ciao,
Mathias
--
Mathias Bauer (mba) - Project Lead OpenOffice.org Writer
OpenOffice.org Engineering at Sun: http://blogs.sun.com/GullFOSS
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