[PyQt] Weird behavior in fromMimeData method (pyScintilla)

[Salvatore Larosa]

Hi Phil and all,

2012/9/20 Salvatore Larosa <lrssvtml at gmail.com>

> Hi Phil,
>
> 2012/9/20 Phil Thompson <phil at riverbankcomputing.com>
>
>> On Thu, 20 Sep 2012 00:48:10 +0200, Salvatore Larosa <lrssvtml at gmail.com>
>> wrote:
>> > Hi,
>> >
>> > 2012/9/19 Phil Thompson <phil at riverbankcomputing.com>
>> >
>> >> On Wed, 19 Sep 2012 14:54:57 +0200, Salvatore Larosa
>> <lrssvtml at gmail.com>
>> >> wrote:
>> >> > Hi Phil,
>> >> >
>> >> > 2012/9/19 Phil Thompson <phil at riverbankcomputing.com>
>> >> >
>> >> >> On Wed, 19 Sep 2012 08:05:42 +0200, Salvatore Larosa
>> >> <lrssvtml at gmail.com>
>> >> >> wrote:
>> >> >> > Hi,
>> >> >> >
>> >> >> > 2012/9/19 Phil Thompson <phil at riverbankcomputing.com>
>> >> >> >
>> >> >> >> On Tue, 18 Sep 2012 23:16:00 +0200, Salvatore Larosa
>> >> >> <lrssvtml at gmail.com>
>> >> >> >> wrote:
>> >> >> >> > Hi all,
>> >> >> >> > I am not sure if this is the rigth place to ask!
>> >> >> >> >
>> >> >> >> > I created a small console to execute python command by using
>> >> >> Qscintilla
>> >> >> >> > python bindings but something doesnt work with MIME data.
>> >> >> >> >
>> >> >> >> > My code is:
>> >> >> >> >
>> >> >> >> > def fromMimeData(self, source):
>> >> >> >> >         if source.hasText():
>> >> >> >> >             pasteList = QStringList()
>> >> >> >> >             pasteList = source.text().split("\n")
>> >> >> >> >             if (len(pasteList) > 1):
>> >> >> >> >               self.move_cursor_to_end()
>> >> >> >> >             for line in pasteList[:-1]:
>> >> >> >> >                 self.append(line)
>> >> >> >> >                 self.move_cursor_to_end()
>> >> >> >> >                 self.runCommand(unicode(self.currentCommand()))
>> >> >> >> >             self.append(unicode(pasteList[-1]))
>> >> >> >> >             self.move_cursor_to_end()
>> >> >> >> >
>> >> >> >> > First question: when I paste some text in console and run
>> command
>> >> I
>> >> >> >> > get:
>> >> >> >> >
>> >> >> >> > TypeError: invalid result type from PythonEdit.fromMimeData()
>> >> >> >> >
>> >> >> >> > How I can avoid it?
>> >> >> >>
>> >> >> >> fromMimeData() should return a 2-tuple of the text as a
>> QByteArray
>> >> and
>> >> >> a
>> >> >> >> bool set if the selection is rectangular.
>> >> >> >>
>> >> >> >
>> >> >> > Thanks for your reply.
>> >> >> >
>> >> >> > oddly the paste command works well although returns that error!
>> >> >> > how should I manage the contents of tuple?
>> >> >>
>> >> >> I don't know what your code is supposed to do. If  your
>> implementation
>> >> of
>> >> >> fromMimeData() is adding extra behaviour (rather than changing the
>> >> >> default
>> >> >> behaviour) then call the super-class implementation, ie. add the
>> >> >> following
>> >> >> at the end...
>> >> >>
>> >> >>         return super(MyClass, self).fromMimeData(source)
>> >> >>
>> >> >>
>> >> > That solve the problem about typeError, but now it paste twice the
>> same
>> >> > word!
>> >> > You can see the source code here [1] (MIME data stuff is at line
>> 418).
>> >>
>> >> The purpose of fromMimeData() is to allow you to specify how MIME data
>> is
>> >> converted to text. It looks like you are trying to use it for another
>> >> purpose. You should probably look at reimplementing dropEvent()
>> instead.
>> >>
>> >>
>> > I thought it would work like insertFromMimeData [1].
>> > I tested it with QTextEdit widget and works fine!
>> >
>> > I need that to execute multi-line command in my shell i.e.:
>> >>>> if True:
>> > . . .    print "Hello"
>> > . . . if False:
>> > . . .    print "Bye Bye"
>> >
>> > so the last command line only paste the text doesnt run it!
>> >
>> > Also, I implemented dropEvent() and has worked only for drag and drop
>> event
>> > and not to paste :-(
>>
>> So reimplement paste().
>>
>>
> As you can see from the video [1] operations paste and drop works fine.
> However, with this configuration [2] I can not paste or drop a piece of
> text to a specific position of the cursor is the clipboard and mimedataare inserted at
> the end of the line! You can also see this problem in the video!
> Thanks for your time!!
>
> Anyway, if you can not replicate it, apparently it's just my problem!
> I can send you the source code (a simple widget) so that you can replicate
> it!
>
> Regards,
>
> -SL
>
> [1] - http://lrssvt.ns0.it/pasteDropMimeData.ogv
> [2] - https://gist.github.com/3755609
>


I soved simply changing self.append() to self.insert() in
insertFromDropPaste() method!
The "append()" method inserts the text to the end of the text edit [1]

Cheers!

[1] - http://goo.gl/yGWkE



-- 
Salvatore Larosa
linkedIn: http://linkedin.com/in/larosasalvatore
twitter: @lrssvt
skype: s.larosa
IRC: lrssvt on freenode
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