diff options
Diffstat (limited to 'examples/widgets/mainwindows/mdi/mdichild.cpp')
-rw-r--r-- | examples/widgets/mainwindows/mdi/mdichild.cpp | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/examples/widgets/mainwindows/mdi/mdichild.cpp b/examples/widgets/mainwindows/mdi/mdichild.cpp deleted file mode 100644 index 8f96ec623d..0000000000 --- a/examples/widgets/mainwindows/mdi/mdichild.cpp +++ /dev/null @@ -1,150 +0,0 @@ -// Copyright (C) 2016 The Qt Company Ltd. -// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause - -#include <QtWidgets> - -#include "mdichild.h" - -MdiChild::MdiChild() -{ - setAttribute(Qt::WA_DeleteOnClose); - isUntitled = true; -} - -void MdiChild::newFile() -{ - static int sequenceNumber = 1; - - isUntitled = true; - curFile = tr("document%1.txt").arg(sequenceNumber++); - setWindowTitle(curFile + "[*]"); - - connect(document(), &QTextDocument::contentsChanged, - this, &MdiChild::documentWasModified); -} - -bool MdiChild::loadFile(const QString &fileName) -{ - QFile file(fileName); - if (!file.open(QFile::ReadOnly | QFile::Text)) { - QMessageBox::warning(this, tr("MDI"), - tr("Cannot read file %1:\n%2.") - .arg(fileName) - .arg(file.errorString())); - return false; - } - - QTextStream in(&file); - QGuiApplication::setOverrideCursor(Qt::WaitCursor); - setPlainText(in.readAll()); - QGuiApplication::restoreOverrideCursor(); - - setCurrentFile(fileName); - - connect(document(), &QTextDocument::contentsChanged, - this, &MdiChild::documentWasModified); - - return true; -} - -bool MdiChild::save() -{ - if (isUntitled) { - return saveAs(); - } else { - return saveFile(curFile); - } -} - -bool MdiChild::saveAs() -{ - QString fileName = QFileDialog::getSaveFileName(this, tr("Save As"), - curFile); - if (fileName.isEmpty()) - return false; - - return saveFile(fileName); -} - -bool MdiChild::saveFile(const QString &fileName) -{ - QString errorMessage; - - QGuiApplication::setOverrideCursor(Qt::WaitCursor); - QSaveFile file(fileName); - if (file.open(QFile::WriteOnly | QFile::Text)) { - QTextStream out(&file); - out << toPlainText(); - if (!file.commit()) { - errorMessage = tr("Cannot write file %1:\n%2.") - .arg(QDir::toNativeSeparators(fileName), file.errorString()); - } - } else { - errorMessage = tr("Cannot open file %1 for writing:\n%2.") - .arg(QDir::toNativeSeparators(fileName), file.errorString()); - } - QGuiApplication::restoreOverrideCursor(); - - if (!errorMessage.isEmpty()) { - QMessageBox::warning(this, tr("MDI"), errorMessage); - return false; - } - - setCurrentFile(fileName); - return true; -} - -QString MdiChild::userFriendlyCurrentFile() -{ - return strippedName(curFile); -} - -void MdiChild::closeEvent(QCloseEvent *event) -{ - if (maybeSave()) { - event->accept(); - } else { - event->ignore(); - } -} - -void MdiChild::documentWasModified() -{ - setWindowModified(document()->isModified()); -} - -bool MdiChild::maybeSave() -{ - if (!document()->isModified()) - return true; - const QMessageBox::StandardButton ret - = QMessageBox::warning(this, tr("MDI"), - tr("'%1' has been modified.\n" - "Do you want to save your changes?") - .arg(userFriendlyCurrentFile()), - QMessageBox::Save | QMessageBox::Discard - | QMessageBox::Cancel); - switch (ret) { - case QMessageBox::Save: - return save(); - case QMessageBox::Cancel: - return false; - default: - break; - } - return true; -} - -void MdiChild::setCurrentFile(const QString &fileName) -{ - curFile = QFileInfo(fileName).canonicalFilePath(); - isUntitled = false; - document()->setModified(false); - setWindowModified(false); - setWindowTitle(userFriendlyCurrentFile() + "[*]"); -} - -QString MdiChild::strippedName(const QString &fullFileName) -{ - return QFileInfo(fullFileName).fileName(); -} |