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     7 ** This file is part of the config.tests of the Qt Toolkit.

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    41 

    42 #include <QtGui>

    43 #include "filereader.h"

    44 

    45 

    46 FileReader::FileReader(QWidget *parent)

    47     : QWidget(parent)

    48 {

    49     textEdit = new QTextEdit;

    50 

    51     taxFileButton = new QPushButton("Tax File");

    52     accountFileButton = new QPushButton("Accounts File");

    53     reportFileButton = new QPushButton("Report File");

    54 

    55 //! [0]

    56     signalMapper = new QSignalMapper(this);

    57     signalMapper->setMapping(taxFileButton, QString("taxfile.txt"));

    58     signalMapper->setMapping(accountFileButton, QString("accountsfile.txt"));

    59     signalMapper->setMapping(reportFileButton, QString("reportfile.txt"));

    60 

    61     connect(taxFileButton, SIGNAL(clicked()),

    62         signalMapper, SLOT (map()));

    63     connect(accountFileButton, SIGNAL(clicked()),

    64         signalMapper, SLOT (map()));

    65     connect(reportFileButton, SIGNAL(clicked()),

    66         signalMapper, SLOT (map()));

    67 //! [0]

    68 

    69 //! [1]

    70     connect(signalMapper, SIGNAL(mapped(const QString &)),

    71         this, SLOT(readFile(const QString &)));

    72 //! [1]

    73 

    74     QHBoxLayout *buttonLayout = new QHBoxLayout;

    75     buttonLayout->addWidget(taxFileButton);

    76     buttonLayout->addWidget(accountFileButton);

    77     buttonLayout->addWidget(reportFileButton);

    78 

    79     QVBoxLayout *mainLayout = new QVBoxLayout;

    80     mainLayout->addWidget(textEdit);

    81     mainLayout->addLayout(buttonLayout);

    82 

    83     setLayout(mainLayout);

    84 }

    85 

    86 void FileReader::readFile(const QString &filename)

    87 {

    88     QFile file(filename);

    89     

    90     if (!file.open(QIODevice::ReadOnly)) {

    91         QMessageBox::information(this, tr("Unable to open file"),

    92             file.errorString());

    93         return;

    94     }

    95 

    96 

    97     QTextStream in(&file);

    98     textEdit->setPlainText(in.readAll());

    99 }

   100