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****************************************************************************/

#include <QtGui>

#include "mainwindow.h"

#include "xmlwriter.h"

MainWindow::MainWindow()

{

    QMenu *fileMenu = new QMenu(tr("&File"));

    QAction *saveAction = fileMenu->addAction(tr("&Save..."));

    saveAction->setShortcut(tr("Ctrl+S"));

    QAction *quitAction = fileMenu->addAction(tr("E&xit"));

    quitAction->setShortcut(tr("Ctrl+Q"));

    QMenu *showMenu = new QMenu(tr("&Show"));

    QAction *showTableAction = showMenu->addAction(tr("&Table"));

    menuBar()->addMenu(fileMenu);

    menuBar()->addMenu(showMenu);

    editor = new QTextEdit();

//! [0] //! [1]

    QTextCursor cursor(editor->textCursor());

//! [0]

    cursor.movePosition(QTextCursor::Start);

//! [1]

    int rows = 11;

    int columns = 4;

//! [2]

    QTextTableFormat tableFormat;

    tableFormat.setBackground(QColor("#e0e0e0"));

    QVector<QTextLength> constraints;

    constraints << QTextLength(QTextLength::PercentageLength, 16);

    constraints << QTextLength(QTextLength::PercentageLength, 28);

    constraints << QTextLength(QTextLength::PercentageLength, 28);

    constraints << QTextLength(QTextLength::PercentageLength, 28);

    tableFormat.setColumnWidthConstraints(constraints);

//! [3]

    QTextTable *table = cursor.insertTable(rows, columns, tableFormat);

//! [2] //! [3]

    int column;

    int row;

    QTextTableCell cell;

    QTextCursor cellCursor;

    QTextCharFormat charFormat;

    charFormat.setForeground(Qt::black);

//! [4]

    cell = table->cellAt(0, 0);

    cellCursor = cell.firstCursorPosition();

    cellCursor.insertText(tr("Week"), charFormat);

//! [4]

//! [5]

    for (column = 1; column < columns; ++column) {

        cell = table->cellAt(0, column);

        cellCursor = cell.firstCursorPosition();

        cellCursor.insertText(tr("Team %1").arg(column), charFormat);

    }

    for (row = 1; row < rows; ++row) {

        cell = table->cellAt(row, 0);

        cellCursor = cell.firstCursorPosition();

        cellCursor.insertText(tr("%1").arg(row), charFormat);

        for (column = 1; column < columns; ++column) {

            if ((row-1) % 3 == column-1) {

//! [5] //! [6]

                cell = table->cellAt(row, column);

                QTextCursor cellCursor = cell.firstCursorPosition();

                cellCursor.insertText(tr("On duty"), charFormat);

            }

//! [6] //! [7]

        }

//! [7] //! [8]

    }

//! [8]

    connect(saveAction, SIGNAL(triggered()), this, SLOT(saveFile()));

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

    connect(showTableAction, SIGNAL(triggered()), this, SLOT(showTable()));

    setCentralWidget(editor);

    setWindowTitle(tr("Text Document Tables"));

}

void MainWindow::saveFile()

{

    QString fileName = QFileDialog::getSaveFileName(this,

        tr("Save document as:"), "", tr("XML (*.xml)"));

    if (!fileName.isEmpty()) {

        if (writeXml(fileName))

            setWindowTitle(fileName);

        else

            QMessageBox::warning(this, tr("Warning"),

                tr("Failed to save the document."), QMessageBox::Cancel,

                QMessageBox::NoButton);

    }

}

void MainWindow::showTable()

{

    QTextCursor cursor = editor->textCursor();

    QTextTable *table = cursor.currentTable();

    if (!table)

        return;

    QTableWidget *tableWidget = new QTableWidget(table->rows(), table->columns());

//! [9]

    for (int row = 0; row < table->rows(); ++row) {

        for (int column = 0; column < table->columns(); ++column) {

            QTextTableCell tableCell = table->cellAt(row, column);

//! [9]

            QTextFrame::iterator it;

            QString text;

            for (it = tableCell.begin(); !(it.atEnd()); ++it) {

                QTextBlock childBlock = it.currentBlock();

                if (childBlock.isValid())

                    text += childBlock.text();

            }

            QTableWidgetItem *newItem = new QTableWidgetItem(text);

            tableWidget->setItem(row, column, newItem);

            /*

//! [10]

            processTableCell(tableCell);

//! [10]

            */

//! [11]

        }

//! [11] //! [12]

    }

//! [12]

    tableWidget->setWindowTitle(tr("Table Contents"));

    tableWidget->show();

}

bool MainWindow::writeXml(const QString &fileName)

{

    XmlWriter documentWriter(editor->document());

    QDomDocument *domDocument = documentWriter.toXml();

    QFile file(fileName);

    if (file.open(QFile::WriteOnly)) {

        QTextStream textStream(&file);

        textStream.setCodec(QTextCodec::codecForName("UTF-8"));

        textStream << domDocument->toString(1).toUtf8();

        file.close();

        return true;

    }

    else

        return false;

}