diff options
Diffstat (limited to 'examples/widgets/mainwindows/mdi/mainwindow.cpp')
| -rw-r--r-- | examples/widgets/mainwindows/mdi/mainwindow.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/examples/widgets/mainwindows/mdi/mainwindow.cpp b/examples/widgets/mainwindows/mdi/mainwindow.cpp index 188de1893e..b952d19e2e 100644 --- a/examples/widgets/mainwindows/mdi/mainwindow.cpp +++ b/examples/widgets/mainwindows/mdi/mainwindow.cpp @@ -242,7 +242,7 @@ void MainWindow::about() void MainWindow::updateMenus() { - bool hasMdiChild = (activeMdiChild() != 0); + bool hasMdiChild = (activeMdiChild() != nullptr); saveAct->setEnabled(hasMdiChild); saveAsAct->setEnabled(hasMdiChild); #ifndef QT_NO_CLIPBOARD @@ -483,19 +483,20 @@ MdiChild *MainWindow::activeMdiChild() const { if (QMdiSubWindow *activeSubWindow = mdiArea->activeSubWindow()) return qobject_cast<MdiChild *>(activeSubWindow->widget()); - return 0; + return nullptr; } QMdiSubWindow *MainWindow::findMdiChild(const QString &fileName) const { QString canonicalFilePath = QFileInfo(fileName).canonicalFilePath(); - foreach (QMdiSubWindow *window, mdiArea->subWindowList()) { + const QList<QMdiSubWindow *> subWindows = mdiArea->subWindowList(); + for (QMdiSubWindow *window : subWindows) { MdiChild *mdiChild = qobject_cast<MdiChild *>(window->widget()); if (mdiChild->currentFile() == canonicalFilePath) return window; } - return 0; + return nullptr; } void MainWindow::switchLayoutDirection() |