/******************************************************************************** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.**** This file is part of the example classes of the Qt Toolkit.**** This file may be used under the terms of the GNU General Public** License version 2.0 as published by the Free Software Foundation** and appearing in the file LICENSE.GPL included in the packaging of** this file.  Please review the following information to ensure GNU** General Public Licensing requirements will be met:** http://www.trolltech.com/products/qt/opensource.html**** If you are unsure which license is appropriate for your use, please** review the following information:** http://www.trolltech.com/products/qt/licensing.html or contact the** sales department at sales@trolltech.com.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#include <QtGui>#include "mainwindow.h"MainWindow::MainWindow(){    textEdit = new QTextEdit;    setCentralWidget(textEdit);    createActions();    createMenus();    createToolBars();    createStatusBar();    createDockWindows();    setWindowTitle(tr("Dock Widgets"));    newLetter();}void MainWindow::newLetter(){    textEdit->clear();    QTextCursor cursor(textEdit->textCursor());    cursor.movePosition(QTextCursor::Start);    QTextFrame *topFrame = cursor.currentFrame();    QTextFrameFormat topFrameFormat = topFrame->frameFormat();    topFrameFormat.setPadding(16);    topFrame->setFrameFormat(topFrameFormat);    QTextCharFormat textFormat;    QTextCharFormat boldFormat;    boldFormat.setFontWeight(QFont::Bold);    QTextCharFormat italicFormat;    italicFormat.setFontItalic(true);    QTextTableFormat tableFormat;    tableFormat.setBorder(1);    tableFormat.setCellPadding(16);    tableFormat.setAlignment(Qt::AlignRight);    cursor.insertTable(1, 1, tableFormat);    cursor.insertText("The Firm", boldFormat);    cursor.insertBlock();    cursor.insertText("321 City Street", textFormat);    cursor.insertBlock();    cursor.insertText("Industry Park");    cursor.insertBlock();    cursor.insertText("Some Country");    cursor.setPosition(topFrame->lastPosition());    cursor.insertText(QDate::currentDate().toString("d MMMM yyyy"), textFormat);    cursor.insertBlock();    cursor.insertBlock();    cursor.insertText("Dear ", textFormat);    cursor.insertText("NAME", italicFormat);    cursor.insertText(",", textFormat);    for (int i = 0; i < 3; ++i)        cursor.insertBlock();    cursor.insertText(tr("Yours sincerely,"), textFormat);    for (int i = 0; i < 3; ++i)        cursor.insertBlock();    cursor.insertText("The Boss", textFormat);    cursor.insertBlock();    cursor.insertText("ADDRESS", italicFormat);}void MainWindow::print(){    QTextDocument *document = textEdit->document();    QPrinter printer;    QPrintDialog *dlg = new QPrintDialog(&printer, this);    if (dlg->exec() != QDialog::Accepted)        return;    document->print(&printer);    statusBar()->showMessage(tr("Ready"), 2000);}void MainWindow::save(){    QString fileName = QFileDialog::getSaveFileName(this,                        tr("Choose a file name"), ".",                        tr("HTML (*.html *.htm)"));    if (fileName.isEmpty())        return;    QFile file(fileName);    if (!file.open(QFile::WriteOnly | QFile::Text)) {        QMessageBox::warning(this, tr("Dock Widgets"),                             tr("Cannot write file %1:\n%2.")                             .arg(fileName)                             .arg(file.errorString()));        return;    }    QTextStream out(&file);    QApplication::setOverrideCursor(Qt::WaitCursor);    out << textEdit->toHtml();    QApplication::restoreOverrideCursor();    statusBar()->showMessage(tr("Saved '%1'").arg(fileName), 2000);}void MainWindow::undo(){    QTextDocument *document = textEdit->document();    document->undo();}void MainWindow::insertCustomer(const QString &customer){    if (customer.isEmpty())        return;    QStringList customerList = customer.split(", ");    QTextDocument *document = textEdit->document();    QTextCursor cursor = document->find("NAME");    if (!cursor.isNull()) {        cursor.beginEditBlock();        cursor.insertText(customerList.at(0));        QTextCursor oldcursor = cursor;        cursor = document->find("ADDRESS");        if (!cursor.isNull()) {            for (int i = 1; i < customerList.size(); ++i) {                cursor.insertBlock();                cursor.insertText(customerList.at(i));            }            cursor.endEditBlock();        }        else            oldcursor.endEditBlock();    }}void MainWindow::addParagraph(const QString &paragraph){    if (paragraph.isEmpty())        return;    QTextDocument *document = textEdit->document();    QTextCursor cursor = document->find(tr("Yours sincerely,"));    if (cursor.isNull())        return;    cursor.beginEditBlock();    cursor.movePosition(QTextCursor::PreviousBlock, QTextCursor::MoveAnchor, 2);    cursor.insertBlock();    cursor.insertText(paragraph);    cursor.insertBlock();    cursor.endEditBlock();}void MainWindow::about(){   QMessageBox::about(this, tr("About Dock Widgets"),            tr("The <b>Dock Widgets</b> example demonstrates how to "               "use Qt's dock widgets. You can enter your own text, "               "click a customer to add a customer name and "               "address, and click standard paragraphs to add them."));}void MainWindow::createActions(){    newLetterAct = new QAction(QIcon(":/images/new.png"), tr("&New Letter"),                               this);    newLetterAct->setShortcut(tr("Ctrl+N"));    newLetterAct->setStatusTip(tr("Create a new form letter"));    connect(newLetterAct, SIGNAL(triggered()), this, SLOT(newLetter()));    saveAct = new QAction(QIcon(":/images/save.png"), tr("&Save..."), this);    saveAct->setShortcut(tr("Ctrl+S"));    saveAct->setStatusTip(tr("Save the current form letter"));    connect(saveAct, SIGNAL(triggered()), this, SLOT(save()));    printAct = new QAction(QIcon(":/images/print.png"), tr("&Print..."), this);    printAct->setShortcut(tr("Ctrl+P"));    printAct->setStatusTip(tr("Print the current form letter"));    connect(printAct, SIGNAL(triggered()), this, SLOT(print()));    undoAct = new QAction(QIcon(":/images/undo.png"), tr("&Undo"), this);    undoAct->setShortcut(tr("Ctrl+Z"));    undoAct->setStatusTip(tr("Undo the last editing action"));    connect(undoAct, SIGNAL(triggered()), this, SLOT(undo()));    quitAct = new QAction(tr("&Quit"), this);    quitAct->setShortcut(tr("Ctrl+Q"));    quitAct->setStatusTip(tr("Quit the application"));    connect(quitAct, SIGNAL(triggered()), this, SLOT(close()));    aboutAct = new QAction(tr("&About"), this);    aboutAct->setStatusTip(tr("Show the application's About box"));    connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));    aboutQtAct = new QAction(tr("About &Qt"), this);    aboutQtAct->setStatusTip(tr("Show the Qt library's About box"));    connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));}void MainWindow::createMenus(){    fileMenu = menuBar()->addMenu(tr("&File"));    fileMenu->addAction(newLetterAct);    fileMenu->addAction(saveAct);    fileMenu->addAction(printAct);    fileMenu->addSeparator();    fileMenu->addAction(quitAct);    editMenu = menuBar()->addMenu(tr("&Edit"));    editMenu->addAction(undoAct);    viewMenu = menuBar()->addMenu(tr("&View"));    menuBar()->addSeparator();    helpMenu = menuBar()->addMenu(tr("&Help"));    helpMenu->addAction(aboutAct);    helpMenu->addAction(aboutQtAct);}void MainWindow::createToolBars(){    fileToolBar = addToolBar(tr("File"));    fileToolBar->addAction(newLetterAct);    fileToolBar->addAction(saveAct);    fileToolBar->addAction(printAct);    editToolBar = addToolBar(tr("Edit"));    editToolBar->addAction(undoAct);}void MainWindow::createStatusBar(){    statusBar()->showMessage(tr("Ready"));}void MainWindow::createDockWindows(){    QDockWidget *dock = new QDockWidget(tr("Customers"), this);    dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);    customerList = new QListWidget(dock);    customerList->addItems(QStringList()            << "John Doe, Harmony Enterprises, 12 Lakeside, Ambleton"            << "Jane Doe, Memorabilia, 23 Watersedge, Beaton"            << "Tammy Shea, Tiblanka, 38 Sea Views, Carlton"            << "Tim Sheen, Caraba Gifts, 48 Ocean Way, Deal"            << "Sol Harvey, Chicos Coffee, 53 New Springs, Eccleston"            << "Sally Hobart, Tiroli Tea, 67 Long River, Fedula");    dock->setWidget(customerList);    addDockWidget(Qt::RightDockWidgetArea, dock);    viewMenu->addAction(dock->toggleViewAction());    dock = new QDockWidget(tr("Paragraphs"), this);    paragraphsList = new QListWidget(dock);    paragraphsList->addItems(QStringList()            << "Thank you for your payment which we have received today."            << "Your order has been dispatched and should be with you "               "within 28 days."            << "We have dispatched those items that were in stock. The "               "rest of your order will be dispatched once all the "               "remaining items have arrived at our warehouse. No "               "additional shipping charges will be made."            << "You made a small overpayment (less than $5) which we "               "will keep on account for you, or return at your request."            << "You made a small underpayment (less than $1), but we have "               "sent your order anyway. We'll add this underpayment to "               "your next bill."            << "Unfortunately you did not send enough money. Please remit "               "an additional $. Your order will be dispatched as soon as "               "the complete amount has been received."            << "You made an overpayment (more than $5). Do you wish to "               "buy more items, or should we return the excess to you?");    dock->setWidget(paragraphsList);    addDockWidget(Qt::RightDockWidgetArea, dock);    viewMenu->addAction(dock->toggleViewAction());    connect(customerList, SIGNAL(currentTextChanged(const QString &)),            this, SLOT(insertCustomer(const QString &)));    connect(paragraphsList, SIGNAL(currentTextChanged(const QString &)),            this, SLOT(addParagraph(const QString &)));}