[Qt-interest] Can QTextEdit scale in the way what QGraphicsView does?

[cheng long]

Guido, I know what's wrong, I set the parent when I created the QTextEdit.
Removing the parent, it works.
QTextEdit* textEdit = new QTextEdit(__view__);



On Thu, May 20, 2010 at 7:03 PM, cheng long <kevinclcn at gmail.com> wrote:

> Embedding a Widget with QGraphicsProxyWidget
>
> There are two ways to embed a widget using QGraphicsProxyWidget. The most
> common way is to pass a widget pointer to QGraphicsScene::addWidget<http://doc.qt.nokia.com/4.6/qgraphicsscene.html#addWidget>()
> together with any relevant Qt::WindowFlags<http://doc.qt.nokia.com/4.6/qt.html#WindowType-enum>.
> This function returns a pointer to a QGraphicsProxyWidget. You can then
> choose to reparent or position either the proxy, or the embedded widget
> itself.
>
>
> The description above is copied from
> http://doc.qt.nokia.com/4.6/qgraphicsproxywidget.html
>
>
> I tried also adding QGraphicsProxyWidget by:
>
> QGraphicsProxyWidget* proxy = new QGraphicsProxyWidget();
>
> proxy->setWidget(textEdit);
>
> scene->addItem(proxy);
>
>
> But it doesn't work also, i.e. when I call view.scale(2., 2.), the textEdit
> does not scale along with it.
>
>
> -Kevin
>
> On Thu, May 20, 2010 at 5:24 PM, Guido Seifert <Wargand at gmx.de> wrote:
>
>>
>> Nope, works fine in 4.6.
>> But you just cannot add a text widget to a graphics scene.
>> To to this you need the QGraphicsProxyWidget. You find an example
>> how to do it in your qt's demo folder under 'embeddeddialogs'.
>>
>> Guido
>>
>>
>> > Does it works only in Qt 4.7? I tried but it fails to work. Codes as
>> > below:
>> >    m_pWinWidget = new QWinWidget(this);
>> >    QHBoxLayout* hbox = new QHBoxLayout(m_pWinWidget);
>> >
>> >    QGraphicsView* view = new QGraphicsView();
>> >    hbox->addWidget(view);
>> >
>> >    QGraphicsScene* scene = new QGraphicsScene();
>> >    view->setScene(scene);
>> >
>> >    QTextEdit* textEdit = new QTextEdit(view);
>> >    textEdit->setText("Hello, Qt");
>> >    scene->addWidget(textEdit);
>> >
>> >    hbox->setMargin(0);
>> >    view->setMinimumHeight(300);
>> >    view->setMinimumWidth(300);
>> >    m_pWinWidget->show();
>> >
>> > Kevin
>> >
>> > On Thu, May 20, 2010 at 4:00 PM, Guido Seifert <Wargand at gmx.de> wrote:
>> >
>> > >
>> > >
>> > > I want to add: I tried this once. Worked fine. Sort of. The fonts
>> looked
>> > > very quickly very ugly.
>> > >
>> > > Guido
>> > >
>> > > -------- Original-Nachricht --------
>> > > > Datum: Thu, 20 May 2010 08:58:57 +0100
>> > > > Von: Sean Harmer <sean.harmer at maps-technology.com>
>> > > > An: qt-interest at trolltech.com
>> > > > Betreff: Re: [Qt-interest] Can QTextEdit scale in the way what
>> > > QGraphicsView  does?
>> > >
>> > > > Hi,
>> > > >
>> > > > On Thursday 20 May 2010 08:47:06 cheng long wrote:
>> > > > > QGraphicsView scales its content by adjusting its transform
>> matrix,
>> > > > > very excellent!
>> > > > >
>> > > > > Is there any way to add this functionality to QTextEdit? How?
>> > > >
>> > > > You can use QGraphicsProxyWidget to add a QTextEdit to a graphics
>> view
>> > to
>> > > > enable transformations. See the example in the documentation for
>> more
>> > > > detail:
>> > > >
>> > > >
>> http://doc.qt.nokia.com/4.7-snapshot/qgraphicsproxywidget.html#details
>> > > >
>> > > > Cheers,
>> > > >
>> > > > Sean
>> > > > _______________________________________________
>> > > > Qt-interest mailing list
>> > > > Qt-interest at trolltech.com
>> > > > http://lists.trolltech.com/mailman/listinfo/qt-interest
>> > >
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