[Qt-interest] How install shortcuts for multiple widgets?

[Jaco Naude]

Are you setting the action's context to be application wide?

On Wed, Feb 9, 2011 at 8:31 AM, Wilhelm <wilhelm.meier at fh-kl.de> wrote:

> Hi Jaco,
>
> Am 09.02.2011 06:35, schrieb Jaco Naude:
> > Hi Wilhelm
> >
> > One way to solve the problem is to have a front-end action with multiple
> > backend actions. The active backend action will then depend on the
> > widget that has focus and you connect the triggered() signal of the
> > frontend action to the triggered() signal on the backend action etc.
>
> Yes, that was my first idea: to have a say ProxyAction for all those
> actions. But I thought there must be al solution in Qt allready.
>
> Then I came across the shortcutContext property of QAction and tried to
> set the contexts of all the "overlapping" actions to Qt::WidgetShortcut
> instead of the default Qt::WindowShortcut. But I noticed no change !?!
>
> The description of Qt::WidgetShortcut says:
> The shortcut is active when its parent widget has focus.
>
> So if I install an action on a QWidget I would assume that the actions
> shortcut is only active if the QWidget has focus, right? But this seems
> to be broken somehow. Or do I misinterpret something?
>
> >
> > Look at the screenshot below which shows what I mean:
> > http://www.qtilities.org/images/screenshots/conan_screenshot2.jpg
> >
> > The "Expand All" action exists at multiple places (10 in this case)
> > where I have tree views. The one that has focus must be the active
> > backend action, in this case it is a widget called
> > "Qtilities.Core.ObjectPool". Note that it shows it is active and the the
> > connection analyzer shows us that the triggered() signals are connected
> > correctly.
> >
> > To activate your action will depend on your implementation. In my case I
> > use contexts with IDs to define what the active context is. For example
> > if I want to activate the action in the QEvent::FocusIn of my widget I
> > install an event filter on the view and do something like this:
> >
> > bool MyWidget::eventFilter(QObject *object, QEvent *event) {
> >   if (object == d->tree_view && event->type() == QEvent::FocusIn) {
> >       CONTEXT_MANAGER->setNewContext(contextString(),true);
> >       return false;
> >   }
> > }
> >
> > See http://www.qtilities.org/docs_master/page_action_management.html for
> > more details.
> >
> > Hope this helps,
> > Cheers
> > Jaco
> >
> >
> > On Tue, Feb 8, 2011 at 9:06 PM, Wilhelm <wilhelm.meier at fh-kl.de
> > <mailto:wilhelm.meier at fh-kl.de>> wrote:
> >
> >     Hi all,
> >
> >     what is the "right" way to install shortcuts (say Ctrl-S) without
> >     getting the "... ambiguous shortcut ..." error?
> >
> >     If I have an application menu with an action using shortcut Ctrl-S
> and
> >     e.g. several other widgets which also install this shortcut I get the
> >     above error.
> >
> >     So the question is, how to setup up an applications-wide shortcut
> Ctrl-S
> >     that saves a file A if triggered in a texteditor widget A if that has
> >     focus, or saves a file B if triggered in a texteditor widget B if
> that
> >     has focus?
> >
> >     I tried using the shortcut-context and setting it to WidgetContext
> but
> >     without luck.
> >
> >     Any hints?
> >
> >     --
> >     Wilhelm
> >
> >     _______________________________________________
> >     Qt-interest mailing list
> >     Qt-interest at qt.nokia.com <mailto:Qt-interest at qt.nokia.com>
> >     http://lists.qt.nokia.com/mailman/listinfo/qt-interest
> >
> >
>
>
> --
> Wilhelm
>
>
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