Qt-interest Archive, June 2007
Can a QDockWidget have a layout?
Message 1 in thread
Hi all,
QDockWidget ::setWidget() works for one widget.
When I have more than one, I wish to add them in a layout, and then call
setLayout()
QHBoxLayout *hbox = new QHBoxLayout;
hbox->addWidget(m_cmdEdit);
hbox->addWidget(btnGo);
QDockWidget *dw = new QDockWidget(tr("Command"), this);
dw->setAllowedAreas(Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
// dw->setWidget(m_cmdEdit); // works
dw->setLayout(hbox); // does not work
addDockWidget(Qt::BottomDockWidgetArea, dw);
dw->setStatusTip(tr("Type in a command and press Go"));
I found setLayout() does not work here. So I wonder why not a
QDockWidget can have a layout?
Thanks
Lingfa
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Message 2 in thread
try creating a new to qwidget with only a single layout.. Then add youy current widgets to the layout. Then add the top widget to the dock
--Scott
-----Original Message-----
From: Lingfa Yang <lingfa@xxxxxxx>
Date: Friday, Jun 15, 2007 8:17 am
Subject: Can a QDockWidget have a layout?
To: Qt Interest <qt-interest@xxxxxxxxxxxxx>
Hi all,
>
>QDockWidget ::setWidget() works for one widget.
>When I have more than one, I wish to add them in a layout, and then call setLayout()
>
> QHBoxLayout *hbox = new QHBoxLayout;
> hbox->addWidget(m_cmdEdit);
> hbox->addWidget(btnGo);
>
> QDockWidget *dw = new QDockWidget(tr("Command"), this);
> dw->setAllowedAreas(Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
>// dw->setWidget(m_cmdEdit); // works
> dw->setLayout(hbox); // does not work
> addDockWidget(Qt::BottomDockWidgetArea, dw);
> dw->setStatusTip(tr("Type in a command and press Go"));
>
>I found setLayout() does not work here. So I wonder why not a QDockWidget can have a layout?
>
>Thanks
>Lingfa
>
>
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>To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the subject or the body. List archive and information: http://lists.trolltech.com/qt-interest/
>
>
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Message 3 in thread
Scott Aron Bloom wrote:
>try creating a new to qwidget with only a single layout.. Then add youy current widgets to the layout. Then add the top widget to the dock
>--Scott
>
>
Yes, I did work around that way.
QWidget *wi = new QWidget;
wi->setLayout(hbox);
QDockWidget *dw = new QDockWidget(tr("Command"), this);
dw->setWidget(wi);
addDockWidget(Qt::BottomDockWidgetArea, dw);
Just wonder why not directly. Thanks anyway.
Lingfa
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Message 4 in thread
Hi,
is someone one can tell me where,I can find in the doc how to know what
item is under the mouse when user right click?
I want to show a contextmenu in a qtreeview.
contextmenu contents depend of the item under mouse.
I don't see how to translate from a viewport position to a qmodelindex
or other any mvc info that help me to know for what item is the
contextmenu wanted.
void QAbstractScrollArea::contextMenuEvent ( QContextMenuEvent
<http://zorro/developpement/documentation/qt4.3.0/html/qcontextmenuevent.html>
* /e/ ) [virtual protected]
thnak you for any tips.
Best regards,
Veronique.
Message 5 in thread
On 15.06.07 17:52:25, veronique.lefrere@xxxxxx wrote:
> is someone one can tell me where,I can find in the doc how to know what item
> is under the mouse when user right click?
> I want to show a contextmenu in a qtreeview.
>
> contextmenu contents depend of the item under mouse.
> I don't see how to translate from a viewport position to a qmodelindex or other
> any mvc info that help me to know for what item is the contextmenu wanted.
> void QAbstractScrollArea::contextMenuEvent ( QContextMenuEvent
> <http://zorro/developpement/documentation/qt4.3.0/html/qcontextmenuevent.html>
> * /e/ ) [virtual protected]
Read the QAbstractItemView documentation, the class contains indexAt().
Andreas
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Message 6 in thread
Andreas Pakulat a écrit :
>On 15.06.07 17:52:25, veronique.lefrere@xxxxxx wrote:
>
>
>>is someone one can tell me where,I can find in the doc how to know what item
>>is under the mouse when user right click?
>>I want to show a contextmenu in a qtreeview.
>>
>>contextmenu contents depend of the item under mouse.
>>I don't see how to translate from a viewport position to a qmodelindex or other
>>any mvc info that help me to know for what item is the contextmenu wanted.
>>void QAbstractScrollArea::contextMenuEvent ( QContextMenuEvent
>><http://zorro/developpement/documentation/qt4.3.0/html/qcontextmenuevent.html>
>>* /e/ ) [virtual protected]
>>
>>
>
>Read the QAbstractItemView documentation, the class contains indexAt().
>
>Andreas
>
>
>
ok, thank's Andreas, it was the function I didn't see... :-[
have a nice weekend.
Veronique.
Message 7 in thread
On 15.06.07 11:31:57, Lingfa Yang wrote:
> Scott Aron Bloom wrote:
>
> >try creating a new to qwidget with only a single layout.. Then add youy
> >current widgets to the layout. Then add the top widget to the dock
> >--Scott
> >
> Yes, I did work around that way.
Its not a workaround, its "the right way". The QDockWidget has no widget
in its content area, so you need to add one. You can't have a layout
without a widget that the layout is applied to and applying a layout to
the QDockWidget itself doesn't make sense, as that would change its
titlebar, the buttons for closing and making it standalone, possibly the
frame and so on.
Andreas
--
[ signature omitted ]
Message 8 in thread
>Its not a workaround, its "the right way". The QDockWidget has no widget
>in its content area, so you need to add one. You can't have a layout
>without a widget that the layout is applied to and applying a layout to
>the QDockWidget itself doesn't make sense,
>
I though dockWidget->setLayout(hbox) is a way to pass widges to the dock
widget. But I may conceptually wrong.
>as that would change its
>titlebar, the buttons for closing and making it standalone, possibly the
>frame and so on.
>
>Andreas
>
>
>
QDockWidget itself is a widget, and QWidget::setLayout() can apply to
any widget.
Let’s assume hbox contains two widgets:
QHBoxLayout *hbox = new QHBoxLayout;
hbox->addWidget(m_cmdEdit);
hbox->addWidget(btnGo);
the code “dockWidget->setLayout(hbox);” means give the two widgets to
the dockWidget and arrange then in a horizontal box. Logically, I didn’t
see anything wrong, just as a custom widget holder, which holder others.
I agree with you that “You can't have a layout without a widget“. But my
hbox does have two widgets. By saying “The QDockWidget has no widget in
its content area“ seems to me you consider QDockWidget as a layout.
I don’t understand setWidget() either. Very offten we don’t set a widget
for a widget, instead, we setLayout() for.
Just some thought on the simple question. I wish I can learn more from
you guy.
Lingfa
--
[ signature omitted ]
Message 9 in thread
> >Its not a workaround, its "the right way". The QDockWidget has no
widget
> >in its content area, so you need to add one. You can't have a layout
> >without a widget that the layout is applied to and applying a layout
to
> >the QDockWidget itself doesn't make sense,
> >
> I though dockWidget->setLayout(hbox) is a way to pass widges to the
dock
> widget. But I may conceptually wrong.
>
> >as that would change its
> >titlebar, the buttons for closing and making it standalone, possibly
the
> >frame and so on.
> >
> >Andreas
> >
> >
> >
> QDockWidget itself is a widget, and QWidget::setLayout() can apply to
> any widget.
>
> Let's assume hbox contains two widgets:
> QHBoxLayout *hbox = new QHBoxLayout;
> hbox->addWidget(m_cmdEdit);
> hbox->addWidget(btnGo);
>
> the code "dockWidget->setLayout(hbox);" means give the two widgets to
> the dockWidget and arrange then in a horizontal box. Logically, I
didn't
> see anything wrong, just as a custom widget holder, which holder
others.
>
> I agree with you that "You can't have a layout without a widget". But
my
> hbox does have two widgets. By saying "The QDockWidget has no widget
in
> its content area" seems to me you consider QDockWidget as a layout.
>
> I don't understand setWidget() either. Very offten we don't set a
widget
> for a widget, instead, we setLayout() for.
>
> Just some thought on the simple question. I wish I can learn more from
> you guy.
> Lingfa
>
QDockWidget's setWidget is comparible to QMainWindows setCentralWidget
QDockWidget is widget with a predefined layout, just as a QMainWindow
is... There is 1 location for the user definable widget to go.
Scott
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Message 10 in thread
>QDockWidget's setWidget is comparible to QMainWindows setCentralWidget
>
>QDockWidget is widget with a predefined layout, just as a QMainWindow
>is... There is 1 location for the user definable widget to go.
>
>Scott
>
>
>
Good answer!
Now I understand because there is a predefined layout, it needn't set a
layout, but add widget instead.
Thank you very much,
Lingfa
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Message 11 in thread
Hello,
is it possible to to align a QIcon that is displayed in a QTableView cell
using Qt::DecorationRole?? Qt::TextAlignment doesn't seem to work (the name
already suggests it wont :) ).
I am trying to put my icon in to the horizontal center of the cell.
Thanks, Bastian
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