[bt-devel] couple of non-working commits

[Jeremy Erickson]

What are the steps to reproduce the crash?  It's not crashing on me, although 
I still have KDE 3.94.  I could go ahead and update my Kubuntu, if this would 
be the most helpful thing for me to work on right now.  Otherwise I can try 
to work on other bugs while it's not crashing.

I have noticed on my computer that I can't open any works from the bookshelf 
tab.  There is no error or crash; the windows simply do not open and nothing 
happens.  However, works from saved sessions load properly on application 
startup.

-Jeremy Erickson

On Friday 16 November 2007 9:57:23 am Eeli Kaikkonen wrote:
> On Fri, 16 Nov 2007, Eeli Kaikkonen wrote:
> > It is really something with the system. I went back to an earlier
> > working revision but these problems stayed.
>
> I looked in the KDE svn. 3.96 tag has associateWidget() but 3.94 and
> 3.95 do not. That is not a real problem, but khtml is. When I first saw
> our code which creates the html renderer I thought that it was an ugly
> hack or something. Then I learned that it is the fault of khtml: it has
> a circular dependency between khtmlpart and khtmlview. We create the
> khtmlview on the fly while khtmlpart is still being initialized and the
> khtmlpart pointer is given to the khtmlview constructor. It is not a
> very good idea but no matter how hard I read the docs and think about it
> I cannot find a way to do it otherwise if we want to inherit from
> khtmlview.
>
> We could use the default khtmlview which the khtmlpart creates
> internally but then we would loose the d'n'd functionality. I don't know
> if it's possible to implement it in khtmlpart. If it is, then we can
> probably get rid of the CHTMLReadDisplayView. If it is not, I don't know
> how we can continue.
>
>
> The backtrace:
>
> 6  0xb7ef515f in QMetaObject::cast () from /usr/lib/libQtCore.so.4
> #7  0xb674132c in qobject_cast<KHTMLPart*> (object=0xb6203238)
>     at /usr/include/qt4/QtCore/qobject.h:428
> #8  0xb674afc5 in KHTMLPart::parentPart (this=0x8c55870)
>     at /build/buildd/kde4libs-3.95.0/khtml/khtml_part.cpp:5313
> #9  0xb673375a in KHTMLView::init (this=0x8327358)
>     at /build/buildd/kde4libs-3.95.0/khtml/khtmlview.cpp:521
> #10 0xb6733cfa in KHTMLView (this=0x8327358, part=0x8c55870,
> parent=0x81dce00)
>     at /build/buildd/kde4libs-3.95.0/khtml/khtmlview.cpp:486
> #11 0x08133c08 in CHTMLReadDisplayView (this=0x8327358,
>     displayWidget=0x8c55870, parent=0x81dce00)
>     at
> /work/src/bt/btportsvn/src/frontend/display/chtmlreaddisplay.cpp:461
> #12 0x0813782d in CHTMLReadDisplay (this=0x8c55870, readWindow=0x0,
>     parentWidget=0x81dce00)
>     at
> /work/src/bt/btportsvn/src/frontend/display/chtmlreaddisplay.cpp:62
> #13 0x08132289 in CDisplay::createReadInstance (readWindow=0x0,
>     parent=0x81dce00)
>     at /work/src/bt/btportsvn/src/frontend/display/cdisplay.cpp:125
> #14 0x080d3b30 in CInfoDisplay (this=0x81dce00, parent=0x85b7828)
>     at /work/src/bt/btportsvn/src/frontend/cinfodisplay.cpp:60
> #15 0x081584d2 in BibleTime::initView (this=0x8760ba8)
>     at /work/src/bt/btportsvn/src/bibletime_init.cpp:81
>
>
> The critical parts in the code are the constructors:
>
>
> 	CHTMLReadDisplay::CHTMLReadDisplay(CReadWindow* readWindow, QWidget*
> 	parentWidget)
>
> 		: KHTMLPart(m_view = new CHTMLReadDisplayView(
>
> 			this, parentWidget ? parentWidget : readWindow),
> 			readWindow ? readWindow : parentWidget)
>
> and:
>
>
> 	CHTMLReadDisplayView::CHTMLReadDisplayView(CHTMLReadDisplay*
> 	displayWidget, QWidget* parent)
>
> 		: KHTMLView(displayWidget, parent)
>
>   Yours,
> 	Eeli Kaikkonen (Mr.), Oulu, Finland
> 	e-mail: eekaikko at mailx.studentx.oulux.fix (with no x)
>
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