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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the examples of the Qt Toolkit.

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    40 ****************************************************************************/

    41 

    42 #include <QtGui>

    43 

    44 #include "window.h"

    45 

    46 //! [0]

    47 Window::Window(QWidget *parent)

    48     : QDialog(parent)

    49 {

    50     browseButton = createButton(tr("&Browse..."), SLOT(browse()));

    51     findButton = createButton(tr("&Find"), SLOT(find()));

    52 

    53     fileComboBox = createComboBox(tr("*"));

    54     textComboBox = createComboBox();

    55     directoryComboBox = createComboBox(QDir::currentPath());

    56 

    57     fileLabel = new QLabel(tr("Named:"));

    58     textLabel = new QLabel(tr("Containing text:"));

    59     directoryLabel = new QLabel(tr("In directory:"));

    60     filesFoundLabel = new QLabel;

    61 

    62     createFilesTable();

    63 //! [0]

    64 

    65 //! [1]

    66     QHBoxLayout *buttonsLayout = new QHBoxLayout;

    67     buttonsLayout->addStretch();

    68     buttonsLayout->addWidget(findButton);

    69 

    70     QGridLayout *mainLayout = new QGridLayout;

    71     mainLayout->addWidget(fileLabel, 0, 0);

    72     mainLayout->addWidget(fileComboBox, 0, 1, 1, 2);

    73     mainLayout->addWidget(textLabel, 1, 0);

    74     mainLayout->addWidget(textComboBox, 1, 1, 1, 2);

    75     mainLayout->addWidget(directoryLabel, 2, 0);

    76     mainLayout->addWidget(directoryComboBox, 2, 1);

    77     mainLayout->addWidget(browseButton, 2, 2);

    78     mainLayout->addWidget(filesTable, 3, 0, 1, 3);

    79     mainLayout->addWidget(filesFoundLabel, 4, 0);

    80     mainLayout->addLayout(buttonsLayout, 5, 0, 1, 3);

    81     setLayout(mainLayout);

    82 

    83     setWindowTitle(tr("Find Files"));

    84     resize(700, 300);

    85 }

    86 //! [1]

    87 

    88 //! [2]

    89 void Window::browse()

    90 {

    91     QString directory = QFileDialog::getExistingDirectory(this,

    92                                tr("Find Files"), QDir::currentPath());

    93 

    94     if (!directory.isEmpty()) {

    95         if (directoryComboBox->findText(directory) == -1)

    96             directoryComboBox->addItem(directory);

    97         directoryComboBox->setCurrentIndex(directoryComboBox->findText(directory));

    98     }

    99 }

   100 //! [2]

   101 

   102 static void updateComboBox(QComboBox *comboBox)

   103 {

   104     if (comboBox->findText(comboBox->currentText()) == -1)

   105         comboBox->addItem(comboBox->currentText());

   106 }

   107 

   108 //! [3]

   109 void Window::find()

   110 {

   111     filesTable->setRowCount(0);

   112 

   113     QString fileName = fileComboBox->currentText();

   114     QString text = textComboBox->currentText();

   115     QString path = directoryComboBox->currentText();

   116 //! [3]

   117 

   118     updateComboBox(fileComboBox);

   119     updateComboBox(textComboBox);

   120     updateComboBox(directoryComboBox);

   121 

   122 //! [4]

   123     currentDir = QDir(path);

   124     QStringList files;

   125     if (fileName.isEmpty())

   126         fileName = "*";

   127     files = currentDir.entryList(QStringList(fileName),

   128                                  QDir::Files | QDir::NoSymLinks);

   129 

   130     if (!text.isEmpty())

   131         files = findFiles(files, text);

   132     showFiles(files);

   133 }

   134 //! [4]

   135 

   136 //! [5]

   137 QStringList Window::findFiles(const QStringList &files, const QString &text)

   138 {

   139     QProgressDialog progressDialog(this);

   140     progressDialog.setCancelButtonText(tr("&Cancel"));

   141     progressDialog.setRange(0, files.size());

   142     progressDialog.setWindowTitle(tr("Find Files"));

   143 

   144 //! [5] //! [6]

   145     QStringList foundFiles;

   146 

   147     for (int i = 0; i < files.size(); ++i) {

   148         progressDialog.setValue(i);

   149         progressDialog.setLabelText(tr("Searching file number %1 of %2...")

   150                                     .arg(i).arg(files.size()));

   151         qApp->processEvents();

   152 //! [6]

   153 

   154         if (progressDialog.wasCanceled())

   155             break;

   156 

   157 //! [7]

   158         QFile file(currentDir.absoluteFilePath(files[i]));

   159 

   160         if (file.open(QIODevice::ReadOnly)) {

   161             QString line;

   162             QTextStream in(&file);

   163             while (!in.atEnd()) {

   164                 if (progressDialog.wasCanceled())

   165                     break;

   166                 line = in.readLine();

   167                 if (line.contains(text)) {

   168                     foundFiles << files[i];

   169                     break;

   170                 }

   171             }

   172         }

   173     }

   174     return foundFiles;

   175 }

   176 //! [7]

   177 

   178 //! [8]

   179 void Window::showFiles(const QStringList &files)

   180 {

   181     for (int i = 0; i < files.size(); ++i) {

   182         QFile file(currentDir.absoluteFilePath(files[i]));

   183         qint64 size = QFileInfo(file).size();

   184 

   185         QTableWidgetItem *fileNameItem = new QTableWidgetItem(files[i]);

   186         fileNameItem->setFlags(fileNameItem->flags() ^ Qt::ItemIsEditable);

   187         QTableWidgetItem *sizeItem = new QTableWidgetItem(tr("%1 KB")

   188                                              .arg(int((size + 1023) / 1024)));

   189         sizeItem->setTextAlignment(Qt::AlignRight | Qt::AlignVCenter);

   190         sizeItem->setFlags(sizeItem->flags() ^ Qt::ItemIsEditable);

   191 

   192         int row = filesTable->rowCount();

   193         filesTable->insertRow(row);

   194         filesTable->setItem(row, 0, fileNameItem);

   195         filesTable->setItem(row, 1, sizeItem);

   196     }

   197     filesFoundLabel->setText(tr("%1 file(s) found").arg(files.size()) +

   198                              (" (Double click on a file to open it)"));

   199 }

   200 //! [8]

   201 

   202 //! [9]

   203 QPushButton *Window::createButton(const QString &text, const char *member)

   204 {

   205     QPushButton *button = new QPushButton(text);

   206     connect(button, SIGNAL(clicked()), this, member);

   207     return button;

   208 }

   209 //! [9]

   210 

   211 //! [10]

   212 QComboBox *Window::createComboBox(const QString &text)

   213 {

   214     QComboBox *comboBox = new QComboBox;

   215     comboBox->setEditable(true);

   216     comboBox->addItem(text);

   217     comboBox->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);

   218     return comboBox;

   219 }

   220 //! [10]

   221 

   222 //! [11]

   223 void Window::createFilesTable()

   224 {

   225     filesTable = new QTableWidget(0, 2);

   226     filesTable->setSelectionBehavior(QAbstractItemView::SelectRows);

   227 

   228     QStringList labels;

   229     labels << tr("File Name") << tr("Size");

   230     filesTable->setHorizontalHeaderLabels(labels);

   231     filesTable->horizontalHeader()->setResizeMode(0, QHeaderView::Stretch);

   232     filesTable->verticalHeader()->hide();

   233     filesTable->setShowGrid(false);

   234 

   235     connect(filesTable, SIGNAL(cellActivated(int, int)),

   236             this, SLOT(openFileOfItem(int, int)));

   237 }

   238 //! [11]

   239 

   240 //! [12]

   241 

   242 void Window::openFileOfItem(int row, int /* column */)

   243 {

   244     QTableWidgetItem *item = filesTable->item(row, 0);

   245 

   246     QDesktopServices::openUrl(currentDir.absoluteFilePath(item->text()));

   247 }

   248 

   249 //! [12]

   250