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Address Book example: Correctly update "Edit entry" and "Remove entry" actions

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They are not updated after switching tabs. Thus they can be enabled even
when no entry is selected: select an entry on the current tab and then
switch to an empty tab.

Emit AddressWidget::selectionChanged() signal after changing the current tab
to update these actions.

Change-Id: I00da15ed6c3d3839210ae3ffbe1436e234695522
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
This commit is contained in:
Alexander Volkov 2017-10-20 14:10:42 +03:00 committed by Jędrzej Nowacki
parent 82c787ec3b
commit c181f418b9
2 changed files with 12 additions and 5 deletions
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11
examples/widgets/doc/src/addressbook.qdoc
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@ -220,11 +220,12 @@
The QItemSelectionModel class provides a The QItemSelectionModel class provides a
\l{QItemSelectionModel::selectionChanged()}{selectionChanged} \l{QItemSelectionModel::selectionChanged()}{selectionChanged}
signal that is connected to \c{AddressWidget}'s signal that is connected to \c{AddressWidget}'s
\c selectionChanged() signal. This signal to signal connection \c selectionChanged() signal. We also connect
is necessary to enable the \uicontrol{Edit Entry...} and QTabWidget::currentChanged() signal to the lambda expression which
\uicontrol{Remove Entry} actions in \c MainWindow's Tools menu. This emits \c{AddressWidget}'s \c selectionChanged() as well. These
connection is further explained in \c MainWindow's connections are necessary to enable the \uicontrol{Edit Entry...} and
implementation. \uicontrol{Remove Entry} actions in \c MainWindow's Tools menu.
It is further explained in \c MainWindow's implementation.
Each table view in the address book is added as a tab to the Each table view in the address book is added as a tab to the
QTabWidget with the relevant label, obtained from the QStringList QTabWidget with the relevant label, obtained from the QStringList

6
examples/widgets/itemviews/addressbook/addresswidget.cpp
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@ -192,6 +192,12 @@ void AddressWidget::setupTabs()
&QItemSelectionModel::selectionChanged, &QItemSelectionModel::selectionChanged,
this, &AddressWidget::selectionChanged); this, &AddressWidget::selectionChanged);
connect(this, &QTabWidget::currentChanged, this, [this](int tabIndex) {
auto *tableView = qobject_cast<QTableView *>(widget(tabIndex));
if (tableView)
emit selectionChanged(tableView->selectionModel()->selection());
});
addTab(tableView, str); addTab(tableView, str);
} }
} }