C++ QTextEdit::show方法代码示例

void MainWindow::slotSourceDownloaded()
{
    QNetworkReply* reply = qobject_cast<QNetworkReply*>(const_cast<QObject*>(sender()));
    QTextEdit* textEdit = new QTextEdit(NULL);
    textEdit->setAttribute(Qt::WA_DeleteOnClose);
    textEdit->show();
    textEdit->setPlainText(reply->readAll());
    reply->deleteLater();
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QTextEdit editor;
    FilterObject filter;
    filter.setFilteredObject(&editor);
    editor.show();
    return app.exec();
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QTextEdit textEdit;
    textEdit.show();

    return app.exec();
}

void MainWindow::viewSource()
{
    QTextEdit* textEdit = new QTextEdit(NULL);
    textEdit->setAttribute(Qt::WA_DeleteOnClose);
    textEdit->adjustSize();
    textEdit->move(this->geometry().center() - textEdit->rect().center());
    textEdit->show();

    view->page()->toHtml(invoke(textEdit, &QTextEdit::setPlainText));
}

int main(int argv, char **args)
{
	// Erzeugt das Hauptprogramm
    QApplication app(argv, args);
	// Erzeugt ein "Widgets" (z.B. Scrollbalken, Buttons - hier ein Textfeld/Fenster zum schreiben)
    QTextEdit textEdit;
	// Zeigt das Widgets an.
    textEdit.show();
	// Hier startet QT seine Hauptschleife, um Events abzufangen (Mausklick, Tastaturanschlag)
    return app.exec();
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QTextEdit *editor = new QTextEdit;

    QTextDocument *document = new QTextDocument(editor);
    QTextCursor cursor(document);

    QTextImageFormat imageFormat;
    imageFormat.setName(":/images/advert.png");
    cursor.insertImage(imageFormat);

    QTextBlock block = cursor.block();
    QTextFragment fragment;
    QTextBlock::iterator it;

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

        if (fragment.contains(cursor.position()))
            break;
    }

//! [0]
    if (fragment.isValid()) {
        QTextImageFormat newImageFormat = fragment.charFormat().toImageFormat();

        if (newImageFormat.isValid()) {
            newImageFormat.setName(":/images/newimage.png");
            QTextCursor helper = cursor;

            helper.setPosition(fragment.position());
            helper.setPosition(fragment.position() + fragment.length(),
                               QTextCursor::KeepAnchor);
            helper.setCharFormat(newImageFormat);
//! [0] //! [1]
        }
//! [1] //! [2]
    }
//! [2]

    cursor.insertBlock();
    cursor.insertText("Code less. Create more.");

    editor->setDocument(document);
    editor->setWindowTitle(tr("Text Document Image Format"));
    editor->resize(320, 480);
    editor->show();

    return app.exec();
}

int main(int argc, char ** argv) {
   QApplication app{argc, argv};
   double const table[] {
      78.0,    78.0,    78.0,
      0.0,     0.0,     78.0,
      69.0,    56.0,    0.0};
   QTextEdit edit;
   setHtml(&edit, toTable(std::begin(table), std::end(table), 3,
                          [](double arg){ return QString::number(arg, 'f', 1); },
   "width=\"100%\""));
   edit.setReadOnly(true);
   edit.show();
   return app.exec();
}

void QtAboutWidget::handleLicenseClicked() {
	QTextEdit* text = new QTextEdit();
	text->setAttribute(Qt::WA_DeleteOnClose);
	text->setReadOnly(true);
	QFile file(":/COPYING");
	file.open(QIODevice::ReadOnly);
	QTextStream in(&file);
	in.setCodec("UTF-8");
	text->setPlainText(in.readAll());
	file.close();
	text->resize(500, 600);
	text->show();
	text->activateWindow();
}

int main( int argc, char **argv )
{
    QApplication app( argc, argv );

    QTextEdit log;
    EventWidget widget;

    QObject::connect( &widget, SIGNAL(gotEvent(const QString &)),
            &log, SLOT(append(const QString &)) );

    log.show();
    widget.show();

    return app.exec();
}

int main(int argc, char *argv[])
{
    QWidget *parent = 0;
    QString aStringContainingHTMLtext("<h1>Scribe Overview</h1>");

    QApplication app(argc, argv);

//! [1]
    QTextEdit *editor = new QTextEdit(parent);
    editor->setHtml(aStringContainingHTMLtext);
    editor->show();
//! [1]

    return app.exec();
}

QTextEdit* Widgets::createMdiChild()
{
    static int sequenceNumber = 1;

    QString curFile = tr("document%1.txt").arg(sequenceNumber++);

    QTextEdit* child = new QTextEdit;
    child->setWindowIcon(QIcon(":/res/new.png"));
    child->setWindowTitle(curFile + "[*]");

    QMdiSubWindow* subWindow = m_mdiArea->addSubWindow(child);
    subWindow->setWindowState(Qt::WindowMaximized);
//    subWindow->resize( m_mdiArea->width(), m_mdiArea->height());
    child->show();
    return child;
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QTextEdit *editor = new QTextEdit();

    QTextCursor cursor(editor->textCursor());
    cursor.movePosition(QTextCursor::Start); 

    QTextCharFormat plainFormat(cursor.charFormat());

    QTextCharFormat headingFormat = plainFormat;
    headingFormat.setFontWeight(QFont::Bold);
    headingFormat.setFontPointSize(16);

    QTextCharFormat emphasisFormat = plainFormat;
    emphasisFormat.setFontItalic(true);

    QTextCharFormat qtFormat = plainFormat;
    qtFormat.setForeground(QColor("#990000"));

    QTextCharFormat underlineFormat = plainFormat;
    underlineFormat.setFontUnderline(true);

//! [0]
    cursor.insertText(tr("Character formats"),
                      headingFormat);

    cursor.insertBlock();

    cursor.insertText(tr("Text can be displayed in a variety of "
                                  "different character formats. "), plainFormat);
    cursor.insertText(tr("We can emphasize text by "));
    cursor.insertText(tr("making it italic"), emphasisFormat);
//! [0]
    cursor.insertText(tr(", give it a "), plainFormat);
    cursor.insertText(tr("different color "), qtFormat);
    cursor.insertText(tr("to the default text color, "), plainFormat);
    cursor.insertText(tr("underline it"), underlineFormat);
    cursor.insertText(tr(", and use many other effects."), plainFormat);

    editor->setWindowTitle(tr("Text Document Character Formats"));
    editor->resize(320, 480);
    editor->show();
    return app.exec();
}

void MainWindow::on_actionAbout_triggered()
{
	QTextEdit *pTxt = new QTextEdit(this);
	pTxt->setWindowFlags(Qt::Window); //or Qt::Tool, Qt::Dialog if you like
	pTxt->setReadOnly(true);
	pTxt->append("qIffTool by Ilkka Prusi 2011");
	pTxt->append("");
	pTxt->append("This program is free to use and distribute. No warranties of any kind.");
	pTxt->append("Program uses Qt 4.7.2 under LGPL v. 2.1");
	pTxt->append("");
	pTxt->append("Keyboard shortcuts:");
	pTxt->append("");
	pTxt->append("F = open file");
	pTxt->append("Esc = close");
	pTxt->append("? = about (this dialog)");
	pTxt->append("");
	pTxt->show();
}

void MainDock::help() {
//pd Qt version dependent
#if QT_VERSION >= 0x040200
	QDesktopServices::openUrl(QUrl("Readme.txt"));
#else
	QFile readmeFile("Readme.txt");
	readmeFile.open(QIODevice::ReadOnly);
	QTextStream readmeStream(&readmeFile);
	QString readmeString = readmeStream.readAll();
	//won't close automaticaly
	QTextEdit* readmeTXE = new QTextEdit(0);
	readmeTXE->setMinimumSize(500, 300);
	readmeTXE->setWindowTitle("Parallel Worlds Help");
	readmeTXE->show();
	readmeTXE->setReadOnly(true);
	readmeTXE->setPlainText(readmeString);
#endif
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QTextEdit *editor = new QTextEdit();

    QTextCursor cursor(editor->textCursor());
    cursor.movePosition(QTextCursor::Start);

    QTextCharFormat plainFormat(cursor.charFormat());
    QTextCharFormat colorFormat = plainFormat;
    colorFormat.setForeground(Qt::red);

    cursor.insertText(tr("Text can be displayed in a variety of "
                                  "different character "
                                  "formats. "), plainFormat);
    cursor.insertText(tr("We can emphasize text by making it "));
    cursor.insertText(tr("italic, give it a different color "));
    cursor.insertText(tr("to the default text color, underline it, "));
    cursor.insertText(tr("and use many other effects."));

    QString searchString = tr("text");

    QTextDocument *document = editor->document();
//! [0]
    QTextCursor newCursor(document);

    while (!newCursor.isNull() && !newCursor.atEnd()) {
        newCursor = document->find(searchString, newCursor);

        if (!newCursor.isNull()) {
            newCursor.movePosition(QTextCursor::WordRight,
                                   QTextCursor::KeepAnchor);

            newCursor.mergeCharFormat(colorFormat);
        }
//! [0] //! [1]
    }
//! [1]

    editor->setWindowTitle(tr("Text Document Find"));
    editor->resize(320, 480);
    editor->show();
    return app.exec();
}