[RQt-devel] another crash

[Deepayan Sarkar]

On Wed, Nov 18, 2009 at 1:46 PM, Deepayan Sarkar
<deepayan.sarkar at gmail.com> wrote:
> Any idea what's going wrong here?
>
> ### Just code:
>
> library(qtbase)
>
> gscene <- Qt$QGraphicsScene()
> rtxt <- gscene$addText("some text")
> rtxt
> (rtxt$toPlainText()) ## fine

And as a confirmation that the <QList> thing is not a problem, I get:

> item0 <- gscene$itemAt(0, 0)
> item0
<environment: 0x9e21428>
attr(,"class")
[1] "QGraphicsTextItem"   "QObject"             "QGraphicsItem"
[4] "UserDefinedDatabase" "environment"
> item0$toPlainText()

 *** caught segfault ***
address 0x20, cause 'memory not mapped'

Traceback:
 1: .Call(qt_qinvoke, x, method, FALSE, list(...))
 2: qinvoke(<environment>, "toPlainText", ...)
 3: item0$toPlainText()