Document::Document(const QString& filename, int& current_wordcount, int& current_time, const QString& theme, QWidget* parent)
: QWidget(parent),
m_index(0),
m_always_center(false),
m_rich_text(false),
m_cached_block_count(-1),
m_cached_current_block(-1),
m_page_type(0),
m_page_amount(0),
m_accurate_wordcount(true),
m_current_wordcount(current_wordcount),
m_current_time(current_time)
{
setMouseTracking(true);
m_stats = &m_document_stats;
m_hide_timer = new QTimer(this);
m_hide_timer->setInterval(5000);
m_hide_timer->setSingleShot(true);
connect(m_hide_timer, SIGNAL(timeout()), this, SLOT(hideMouse()));
// Set up text area
m_text = new QTextEdit(this);
m_text->installEventFilter(this);
m_text->setMouseTracking(true);
m_text->setTabStopWidth(50);
m_text->document()->setIndentWidth(50);
m_text->setFrameStyle(QFrame::NoFrame);
m_text->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_text->viewport()->setMouseTracking(true);
m_text->viewport()->installEventFilter(this);
m_highlighter = new Highlighter(m_text);
// Open file
bool unknown_rich_text = false;
if (!filename.isEmpty()) {
m_rich_text = isRichTextFile(filename.toLower());
m_filename = QFileInfo(filename).canonicalFilePath();
updateState();
if (!m_rich_text) {
QFile file(filename);
if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
QTextStream stream(&file);
stream.setCodec(QTextCodec::codecForName("UTF-8"));
stream.setAutoDetectUnicode(true);
m_text->setUndoRedoEnabled(false);
while (!stream.atEnd()) {
m_text->insertPlainText(stream.read(8192));
QApplication::processEvents();
}
m_text->setUndoRedoEnabled(true);
file.close();
}
} else {
RTF::Reader reader;
reader.read(filename, m_text);
if (reader.hasError()) {
QMessageBox::warning(this, tr("Sorry"), reader.errorString());
}
}
m_text->document()->setModified(false);
}
if (m_filename.isEmpty()) {
findIndex();
unknown_rich_text = true;
} else {
m_text->setReadOnly(!QFileInfo(m_filename).isWritable());
}
// Set up scroll bar
m_text->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_scrollbar = m_text->verticalScrollBar();
m_scrollbar->setPalette(QApplication::palette());
m_scrollbar->setAutoFillBackground(true);
m_scrollbar->setVisible(false);
connect(m_scrollbar, SIGNAL(actionTriggered(int)), this, SLOT(scrollBarActionTriggered(int)));
connect(m_scrollbar, SIGNAL(rangeChanged(int,int)), this, SLOT(scrollBarRangeChanged(int,int)));
scrollBarRangeChanged(m_scrollbar->minimum(), m_scrollbar->maximum());
// Lay out window
m_layout = new QGridLayout(this);
m_layout->setSpacing(0);
m_layout->setMargin(0);
m_layout->addWidget(m_text, 0, 1);
m_layout->addWidget(m_scrollbar, 0, 2, Qt::AlignRight);
// Load settings
Preferences preferences;
if (unknown_rich_text) {
m_rich_text = preferences.richText();
}
m_text->setAcceptRichText(m_rich_text);
loadPreferences(preferences);
loadTheme(theme);
calculateWordCount();
connect(m_text->document(), SIGNAL(undoCommandAdded()), this, SLOT(undoCommandAdded()));
connect(m_text->document(), SIGNAL(contentsChange(int,int,int)), this, SLOT(updateWordCount(int,int,int)));
connect(m_text, SIGNAL(textChanged()), this, SLOT(centerCursor()));
connect(m_text, SIGNAL(cursorPositionChanged()), this, SLOT(cursorPositionChanged()));
connect(m_text, SIGNAL(selectionChanged()), this, SLOT(selectionChanged()));
}
void Document::loadFile(const QString& filename, int position)
{
if (filename.isEmpty()) {
return;
}
// Cache contents
QFile::copy(filename, g_cache_path + m_cache_filename);
// Load text area contents
QTextDocument* document = m_text->document();
m_text->blockSignals(true);
document->blockSignals(true);
document->setUndoRedoEnabled(false);
if (!m_rich_text) {
QFile file(filename);
if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
QTextStream stream(&file);
stream.setCodec(QTextCodec::codecForName("UTF-8"));
stream.setAutoDetectUnicode(true);
QTextCursor cursor(document);
while (!stream.atEnd()) {
cursor.insertText(stream.read(8192));
QApplication::processEvents();
}
file.close();
}
} else {
QFile file(filename);
if (file.open(QIODevice::ReadOnly)) {
RTF::Reader reader;
reader.read(&file, document);
file.close();
if (reader.hasError()) {
QMessageBox::warning(this, tr("Sorry"), reader.errorString());
}
}
}
document->setUndoRedoEnabled(true);
document->setModified(false);
document->blockSignals(false);
m_text->blockSignals(false);
// Restore cursor position
scrollBarRangeChanged(m_scrollbar->minimum(), m_scrollbar->maximum());
QTextCursor cursor = m_text->textCursor();
if (position != -1) {
cursor.setPosition(position);
} else {
cursor.movePosition(QTextCursor::End);
}
m_text->setTextCursor(cursor);
centerCursor(true);
// Update details
m_cached_stats.clear();
calculateWordCount();
m_highlighter->rehighlight();
}