Qt 4.3: mainwindow.cpp Example File (richtext/orderform/mainwindow.cpp)

|  | Home · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# mainwindow.cpp Example File
richtext/orderform/mainwindow.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2005-2008 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 versions 2.0 or 3.0 as published by the Free Software
     ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
     ** included in the packaging of this file.  Alternatively you may (at
     ** your option) use any later version of the GNU General Public
     ** License if such license has been publicly approved by Trolltech ASA
     ** (or its successors, if any) and the KDE Free Qt Foundation. In
     ** addition, as a special exception, Trolltech gives you certain
     ** additional rights. These rights are described in the Trolltech GPL
     ** Exception version 1.1, which can be found at
     ** http://www.trolltech.com/products/qt/gplexception/ and in the file
     ** GPL_EXCEPTION.txt in this package.
     **
     ** Please review the following information to ensure GNU General
     ** Public Licensing requirements will be met:
     ** http://trolltech.com/products/qt/licenses/licensing/opensource/. If
     ** you are unsure which license is appropriate for your use, please
     ** review the following information:
     ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
     ** or contact the sales department at sales@trolltech.com.
     **
     ** In addition, as a special exception, Trolltech, as the sole
     ** copyright holder for Qt Designer, grants users of the Qt/Eclipse
     ** Integration plug-in the right for the Qt/Eclipse Integration to
     ** link to functionality provided by Qt Designer and its related
     ** libraries.
     **
     ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
     ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
     ** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly
     ** granted herein.
     **
     ** 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 "detailsdialog.h"
     #include "mainwindow.h"

     MainWindow::MainWindow()
     {
         QMenu *fileMenu = new QMenu(tr("&File"), this);
         QAction *newAction = fileMenu->addAction(tr("&New..."));
         newAction->setShortcut(tr("Ctrl+N"));
         printAction = fileMenu->addAction(tr("&Print..."), this, SLOT(printFile()));
         printAction->setShortcut(tr("Ctrl+P"));
         printAction->setEnabled(false);
         QAction *quitAction = fileMenu->addAction(tr("E&xit"));
         quitAction->setShortcut(tr("Ctrl+Q"));
         menuBar()->addMenu(fileMenu);

         letters = new QTabWidget;

         connect(newAction, SIGNAL(triggered()), this, SLOT(openDialog()));
         connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));

         setCentralWidget(letters);
         setWindowTitle(tr("Order Form"));
     }

     void MainWindow::createLetter(const QString &name, const QString &address,
                                   QList<QPair<QString,int> > orderItems,
                                   bool sendOffers)
     {
         QTextEdit *editor = new QTextEdit;
         int tabIndex = letters->addTab(editor, name);
         letters->setCurrentIndex(tabIndex);

         QTextCursor cursor(editor->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);

         QTextFrameFormat referenceFrameFormat;
         referenceFrameFormat.setBorder(1);
         referenceFrameFormat.setPadding(8);
         referenceFrameFormat.setPosition(QTextFrameFormat::FloatRight);
         referenceFrameFormat.setWidth(QTextLength(QTextLength::PercentageLength, 40));
         cursor.insertFrame(referenceFrameFormat);

         cursor.insertText("A company", boldFormat);
         cursor.insertBlock();
         cursor.insertText("321 City Street");
         cursor.insertBlock();
         cursor.insertText("Industry Park");
         cursor.insertBlock();
         cursor.insertText("Another country");

         cursor.setPosition(topFrame->lastPosition());

         cursor.insertText(name, textFormat);
         QString line;
         foreach (line, address.split("\n")) {
             cursor.insertBlock();
             cursor.insertText(line);
         }
         cursor.insertBlock();
         cursor.insertBlock();

         QDate date = QDate::currentDate();
         cursor.insertText(tr("Date: %1").arg(date.toString("d MMMM yyyy")),
                           textFormat);
         cursor.insertBlock();

         QTextFrameFormat bodyFrameFormat;
         bodyFrameFormat.setWidth(QTextLength(QTextLength::PercentageLength, 100));
         cursor.insertFrame(bodyFrameFormat);

         cursor.insertText(tr("I would like to place an order for the following "
                              "items:"), textFormat);
         cursor.insertBlock();
         cursor.insertBlock();

         QTextTableFormat orderTableFormat;
         orderTableFormat.setAlignment(Qt::AlignHCenter);
         QTextTable *orderTable = cursor.insertTable(1, 2, orderTableFormat);

         QTextFrameFormat orderFrameFormat = cursor.currentFrame()->frameFormat();
         orderFrameFormat.setBorder(1);
         cursor.currentFrame()->setFrameFormat(orderFrameFormat);

         cursor = orderTable->cellAt(0, 0).firstCursorPosition();
         cursor.insertText(tr("Product"), boldFormat);
         cursor = orderTable->cellAt(0, 1).firstCursorPosition();
         cursor.insertText(tr("Quantity"), boldFormat);

         for (int i = 0; i < orderItems.count(); ++i) {
             QPair<QString,int> item = orderItems[i];
             int row = orderTable->rows();

             orderTable->insertRows(row, 1);
             cursor = orderTable->cellAt(row, 0).firstCursorPosition();
             cursor.insertText(item.first, textFormat);
             cursor = orderTable->cellAt(row, 1).firstCursorPosition();
             cursor.insertText(QString("%1").arg(item.second), textFormat);
         }

         cursor.setPosition(topFrame->lastPosition());

         cursor.insertBlock();
         cursor.insertText(tr("Please update my records to take account of the "
                              "following privacy information:"));
         cursor.insertBlock();

         QTextTable *offersTable = cursor.insertTable(2, 2);

         cursor = offersTable->cellAt(0, 1).firstCursorPosition();
         cursor.insertText(tr("I want to receive more information about your "
                              "company's products and special offers."), textFormat);
         cursor = offersTable->cellAt(1, 1).firstCursorPosition();
         cursor.insertText(tr("I do not want to receive any promotional information "
                              "from your company."), textFormat);

         if (sendOffers)
             cursor = offersTable->cellAt(0, 0).firstCursorPosition();
         else
             cursor = offersTable->cellAt(1, 0).firstCursorPosition();

         cursor.insertText("X", boldFormat);

         cursor.setPosition(topFrame->lastPosition());
         cursor.insertBlock();
         cursor.insertText(tr("Sincerely,"), textFormat);
         cursor.insertBlock();
         cursor.insertBlock();
         cursor.insertBlock();
         cursor.insertText(name);

         printAction->setEnabled(true);
     }

     void MainWindow::createSample()
     {
         DetailsDialog dialog("Dialog with default values", this);
         createLetter("Mr. Smith", "12 High Street\nSmall Town\nThis country",
                      dialog.orderItems(), true);
     }

     void MainWindow::openDialog()
     {
         DetailsDialog dialog(tr("Enter Customer Details"), this);

         if (dialog.exec() == QDialog::Accepted)
             createLetter(dialog.senderName(), dialog.senderAddress(),
                          dialog.orderItems(), dialog.sendOffers());
     }

     void MainWindow::printFile()
     {
         QTextEdit *editor = static_cast<QTextEdit*>(letters->currentWidget());
         QPrinter printer;

         QPrintDialog *dialog = new QPrintDialog(&printer, this);
         dialog->setWindowTitle(tr("Print Document"));
         if (editor->textCursor().hasSelection())
             dialog->addEnabledOption(QAbstractPrintDialog::PrintSelection);
         if (dialog->exec() != QDialog::Accepted)
             return;

         editor->print(&printer);
     }