--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/src/snippets/dialogs/dialogs.cpp Thu Apr 08 14:19:33 2010 +0300
@@ -0,0 +1,269 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+typedef QDialog WordCountDialog;
+typedef QDialog FindDialog;
+
+#define this 0
+#define setWordCount(x) isVisible()
+
+QString tr(const char *text)
+{
+ return QApplication::translate(text, text);
+}
+
+class EditorWindow : public QMainWindow
+{
+public:
+ void find();
+ void countWords();
+
+private:
+ FindDialog *findDialog;
+};
+
+//! [0]
+void EditorWindow::find()
+{
+ if (!findDialog) {
+ findDialog = new FindDialog(this);
+ connect(findDialog, SIGNAL(findNext()), this, SLOT(findNext()));
+ }
+
+ findDialog->show();
+ findDialog->raise();
+ findDialog->activateWindow();
+}
+//! [0]
+
+//! [1]
+void EditorWindow::countWords()
+{
+ WordCountDialog dialog(this);
+ dialog.setWordCount(document().wordCount());
+ dialog.exec();
+}
+//! [1]
+
+inline bool boo()
+{
+ QMessageBox::information(this, "Application name",
+ "Unable to find the user preferences file.\n"
+ "The factory default will be used instead.");
+
+ QString filename;
+ if (QFile::exists(filename) &&
+ QMessageBox::question(
+ this,
+ tr("Overwrite File? -- Application Name"),
+ tr("A file called %1 already exists."
+ "Do you want to overwrite it?")
+ .arg(filename),
+ tr("&Yes"), tr("&No"),
+ QString(), 0, 1))
+ return false;
+
+ switch(QMessageBox::warning(this, "Application name",
+ "Could not connect to the <mumble> server.\n"
+ "This program can't function correctly "
+ "without the server.\n\n",
+ "Retry",
+ "Quit", 0, 0, 1)) {
+ case 0: // The user clicked the Retry again button or pressed Enter
+ // try again
+ break;
+ case 1: // The user clicked the Quit or pressed Escape
+ // exit
+ break;
+ }
+
+ switch(QMessageBox::information(this, "Application name here",
+ "The document contains unsaved changes\n"
+ "Do you want to save the changes before exiting?",
+ "&Save", "&Discard", "Cancel",
+ 0, // Enter == button 0
+ 2)) { // Escape == button 2
+ case 0: // Save clicked or Alt+S pressed or Enter pressed.
+ // save
+ break;
+ case 1: // Discard clicked or Alt+D pressed
+ // don't save but exit
+ break;
+ case 2: // Cancel clicked or Escape pressed
+ // don't exit
+ break;
+ }
+
+ switch(QMessageBox::warning(this, "Application name here",
+ "Could not save the user preferences,\n"
+ "because the disk is full. You can delete\n"
+ "some files and press Retry, or you can\n"
+ "abort the Save Preferences operation.",
+ QMessageBox::Retry | QMessageBox::Default,
+ QMessageBox::Abort | QMessageBox::Escape)) {
+ case QMessageBox::Retry: // Retry clicked or Enter pressed
+ // try again
+ break;
+ case QMessageBox::Abort: // Abort clicked or Escape pressed
+ // abort
+ break;
+ }
+
+ QString errorDetails;
+ QMessageBox::critical(0, "Application name here",
+ QString("An internal error occurred. Please ") +
+ "call technical support at 1234-56789 and report\n"+
+ "these numbers:\n\n" + errorDetails +
+ "\n\nApplication will now exit.");
+
+ QMessageBox::about(this, "About <Application>",
+ "<Application> is a <one-paragraph blurb>\n\n"
+ "Copyright 1991-2003 Such-and-such. "
+ "<License words here.>\n\n"
+ "For technical support, call 1234-56789 or see\n"
+ "http://www.such-and-such.com/Application/\n");
+
+ {
+ // saving the file
+ QMessageBox mb("Application name here",
+ "Saving the file will overwrite the original file on the disk.\n"
+ "Do you really want to save?",
+ QMessageBox::Information,
+ QMessageBox::Yes | QMessageBox::Default,
+ QMessageBox::No,
+ QMessageBox::Cancel | QMessageBox::Escape);
+ mb.setButtonText(QMessageBox::Yes, "Save");
+ mb.setButtonText(QMessageBox::No, "Discard");
+ switch(mb.exec()) {
+ case QMessageBox::Yes:
+ // save and exit
+ break;
+ case QMessageBox::No:
+ // exit without saving
+ break;
+ case QMessageBox::Cancel:
+ // don't save and don't exit
+ break;
+ }
+ }
+
+ {
+ // hardware failure
+//! [2]
+ QMessageBox mb("Application Name",
+ "Hardware failure.\n\nDisk error detected\nDo you want to stop?",
+ QMessageBox::Question,
+ QMessageBox::Yes | QMessageBox::Default,
+ QMessageBox::No | QMessageBox::Escape,
+ QMessageBox::NoButton);
+ if (mb.exec() == QMessageBox::No) {
+ // try again
+//! [2]
+ }
+ }
+}
+
+inline void moo()
+{
+ int numFiles;
+//! [3]
+ QProgressDialog progress("Copying files...", "Abort Copy", 0, numFiles, this);
+ progress.setWindowModality(Qt::WindowModal);
+
+ for (int i = 0; i < numFiles; i++) {
+ progress.setValue(i);
+
+ if (progress.wasCanceled())
+ break;
+ //... copy one file
+ }
+ progress.setValue(numFiles);
+//! [3]
+}
+
+class Operation : public QObject
+{
+public:
+ Operation(QObject *parent);
+ void perform();
+ void cancel();
+
+private:
+ int steps;
+ QProgressDialog *pd;
+ QTimer *t;
+};
+
+//! [4]
+// Operation constructor
+Operation::Operation(QObject *parent)
+ : QObject(parent), steps(0)
+{
+ pd = new QProgressDialog("Operation in progress.", "Cancel", 0, 100);
+ connect(pd, SIGNAL(canceled()), this, SLOT(cancel()));
+ t = new QTimer(this);
+ connect(t, SIGNAL(timeout()), this, SLOT(perform()));
+ t->start(0);
+}
+//! [4] //! [5]
+
+void Operation::perform()
+{
+ pd->setValue(steps);
+ //... perform one percent of the operation
+ steps++;
+ if (steps > pd->maximum())
+ t->stop();
+}
+//! [5] //! [6]
+
+void Operation::cancel()
+{
+ t->stop();
+ //... cleanup
+}
+//! [6]
+
+int main()
+{
+}