Dear Mads,
Am Mittwoch, 9. Januar 2013, 15:56:29 schrieb Mads Ipsen:
> Hi,
>
> 4-5 years I needed a widget with the following properties:
>
> * Display text incl. HTML
> * Text should be wrapped on several lines
> * When the widget is put into a layout, the height of the widget
> should be adjusted in such a way that the text exactly fits the
> widget geometry
>
> This subwidget should be used in a layout to provide some detail on how
> the other GUI elements in the layout work but only consume a minimum
> space to display its content.
>
> I thought this was an easy one - but each time I return to the challenge
> I always end by giving up.
>
> The main problem is that the layout breaks down when heightForWidth() is
> implemented and a QSizePolicy with setHeightForWidth(True) is used. It
> can shrink to infinitely small. Apparently this is Qt bug.
Yes, been there, done that, and failed in similar ways.
The best thing I could come up on this was:
use a QTextBrowser for the text:
self.aboutText.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.aboutText.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.aboutText.setLineWrapMode(QtGui.QTextEdit.NoWrap)
self.aboutText.setSizePolicy(QtGui.QSizePolicy.Fixed,
QtGui.QSizePolicy.Fixed)
self.aboutText.setHtml("...")
w = self.aboutText.document().idealWidth()
self.aboutText.document().setTextWidth(w)
ds = self.aboutText.document().size()
self.aboutText.setMinimumSize(int(ds.width() + 3), int(ds.height() + 3))
self.aboutText.updateGeometry()
self.layout().setSizeConstraint(QtGui.QLayout.SetFixedSize)
with this, you can even provide clickable links (but disable openLinks prop):
@QtCore.pyqtSignature("const QUrl &")
def on_aboutText_anchorClicked(self, url):
QtGui.QDesktopServices.openUrl(url)
Maybe it gets you going..
Cheers,
Pete
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