C++ QTextEdit::append方法代码示例

//слот - создание нового корабля
void MyServer::slotNewShip(){

    deleteShipButton->setEnabled(false);

    //создание корабля
    ShipItemStruct* ship = new ShipItemStruct;
    ship->isNew=1;
    shipList.append(ship);

    //если это первый корабль
    if(!shipCounter){
        QTextEdit *txt = (QTextEdit*) txtStack->widget(0);
        txt->append("Ship created");


        //shipCounter++;
        timer->start(500); // TIMER
    }

    //если не первый корабль
    else{
        //создаем новый лог
        QTextEdit *txt = new QTextEdit;
        txt->setReadOnly(true);
        txt->append("Ship created");

        txtStack->addWidget(txt);
        nextButton->setEnabled(true);
    }
    shipCounter++;
}

//отправление данных по всем кораблям
void MyServer::sendAllData(){
    //deleteShipButton->setEnabled(false);

    QByteArray block;
    QDataStream out (&block, QIODevice::WriteOnly);
    out.setVersion(QDataStream::Qt_5_5);

    out << quint16(0) << logNumbersOfRemovedShips.size();       //количество удаленных кораблей
    for(int k = 0; k < logNumbersOfRemovedShips.size(); k++){   //номер лога удаленного корабля
        out << logNumbersOfRemovedShips.at(k);                  //
    }

    logNumbersOfRemovedShips.clear();

    out << shipCounter;     //количество существующих на сервере кораблей

    //для всех кораблей
    for(int i=0; i < shipCounter; i++){

        generateData(shipList.at(i));   //генерируем новые данные

        out << shipList.at(i)->id
            << shipList.at(i)->startX
            << shipList.at(i)->startY
            << shipList.at(i)->courseAngle
            << shipList.at(i)->speed
            << shipList.at(i)->viewAngle
            << shipList.at(i)->viewLength
            << shipList.at(i)->pathLength
            << shipList.at(i)->time;



        QTextEdit *te = (QTextEdit*)txtStack->widget(i);        //получение указателя на лог текущего корабля
        te->append(QString("Id: %1").arg(shipList.at(i)->id+1));//вывод сгенерированной информации в лог

        if(shipList.at(i)->isNew){
            te->append(QString("Start X: %1\nStart Y: %2")
                       .arg(shipList.at(i)->startX)
                       .arg(shipList.at(i)->startY));
        }



        te->append(QString("Course angle: %1 deg\nSpeed: %2\nView angle: %3 deg\nViewLength: %4\nPath length: %5 m\nTime: %6 sec\n")
                       .arg(shipList.at(i)->courseAngle)
                       .arg(shipList.at(i)->speed).arg(shipList.at(i)->viewAngle)
                       .arg(shipList.at(i)->viewLength).arg(shipList.at(i)->pathLength).arg(shipList.at(i)->time/1000.0f));

        shipList.at(i)->isNew=0;
    }

    out.device()->seek(0);  //переход в начало блока
    out<<quint16(block.size()-sizeof(quint16)); //размер блока данных
    if(isClientConnected) socket->write(block);   //посылка клиенту, если он подключен
    block.clear();          //очистка используемого блока

    if(!deleteShipButton->isEnabled()&& shipCounter>0) deleteShipButton->setEnabled(true);
}

void
CSAVE_WORKSHEET::
saveWorksheet(QTabWidget * tabWidget)
{
    QTextEdit * textEdit = new QTextEdit();
    QString fileName = QFileDialog::getSaveFileName(this,tr("Save PM Worksheet"), "",tr("PM Worksheet (*.pmw);;All Files (*)"));
    textEdit->clear();
    textEdit->hide();

    if (fileName.isEmpty())
            return;
    else
    {
        QFile file(fileName);
        QTextStream out(&file);

        if (!file.open(QIODevice::WriteOnly))
        {
            QMessageBox::information(this, tr("Unable to open file"),file.errorString());
            return;
        }

        for ( int i = 0; i < tabWidget->count(); i++ )
        {
            tabWidget->setCurrentIndex(i); // set to Master PM
            QTableWidget *table = dynamic_cast<QTableWidget *>(tabWidget->currentWidget()); // get control

            QString itemData;
            textEdit->append("[ SECTION ] "+tabWidget->tabText(i));

            for ( int j = 0; j < table->rowCount(); j++ )
            {
                for ( int k = 0; k < 12; k++ )
                {
                     itemData.append(table->item(j,k)->text()+" | ");
                }

                textEdit->append(itemData.trimmed());
                itemData.clear();
            }

            out << textEdit->toPlainText() << endl;
            textEdit->clear();
        }
    }

    tabWidget->setCurrentIndex(2);
    QMessageBox::information(this, "Information", "\n Saved worksheet successfully.", QMessageBox::Ok);
}

 void flush(void) {
   QTextBlockFormat bf = editor->textCursor().blockFormat();
   bf.setBottomMargin(0);
   editor->textCursor().setBlockFormat(bf);
   editor->append(buffer);
   buffer.clear();        
 }

void ExplorerPane::updateOutput(const QString& output)
{
    QTextEdit *outputWidget = dynamic_cast<QTextEdit *>(outputPage);
    if (outputWidget)
    {
        // Append the new output
        outputWidget->append(output);
        // Raise the Output tab
        tabWidget->setCurrentWidget(outputPage);
    }
}

 virtual int overflow(int v = std::char_traits<char>::eof()) {
     if (v == '\n') {
         QTextBlockFormat bf = editor->textCursor().blockFormat();
         bf.setBottomMargin(0);
         editor->textCursor().setBlockFormat(bf);
         editor->append(buffer);
         buffer.clear();
     } else {
         buffer += (char)v;
     }
     return v;
 }

void NewTransferDlg::addLinks(QString links)
{
	QTextEdit* target;
	target = /*radioDownload->isChecked() ?*/ textURIs /*: textFiles*/;

	QStringList sl = links.split('\n');
	foreach (QString s, sl)
	{
		s = s.trimmed();
		if (!target->toPlainText().contains(s))
			target->append(s);
	}

static QScriptValue myPrintErrFunc(QScriptContext *context, QScriptEngine *engine){
    if (context->argumentCount() < 1)
        return engine->undefinedValue();
    
    QString result = context->argument(0).toString();
    
    for (int i = 1; i < context->argumentCount(); i++)
        result = result.arg(context->argument(i).toString());
   
    QScriptValue calleeData = context->callee().data();
    QTextEdit *textEdit = qobject_cast<QTextEdit*>(calleeData.toQObject());

    if (textEdit)
        textEdit->append(result);

    return engine->undefinedValue();
}

PanelDeHerramientas::PanelDeHerramientas(QWidget *parent, const char *name) : QDockWindow(parent, name)
{
	box = new QVBox(this);
	setWidget(box);
	toolBox = new QToolBox (box);
	
	QTabWidget *tab = new QTabWidget;
	tab->addTab(new QWidget, "opcion1");
	tab->addTab(new QWidget, "opcion2");
	tab->addTab(new QWidget, "opcion2");
	toolBox->addItem(tab, "Opciones");
	
	QTextEdit *te = new QTextEdit(this);
	te->append("ESTE ES EL TEXTO1");
	toolBox->addItem(te, "Editor" );
	QTextEdit *te2 = new QTextEdit(this);
	te2->append("ESTE ES EL TEXTO2");
	toolBox->addItem(te2, "Editor2" );
}

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

    QTabWidget *tab = new QTabWidget;
    QTextEdit *edit = new QTextEdit;
    Widget *w = new Widget;

    tab->addTab(w, "edit");
    tab->addTab(edit, "recv");

    QObject::connect(w, SIGNAL(message(QString)), edit, SLOT(append(QString)));
    edit->append("plain text");
    tab->show();
//    Widget w;
//    w.show();

    return a.exec();
}

int main (int argc, char * argv[])
{
	QStringList lineList;
	QString curLine;
	Dictionary myDict(argv[2]);

  	QApplication myApp(argc, argv);
   	QTextEdit wid;
 	wid.setMinimumSize(500,300);
 	wid.setAcceptRichText(true);
  	QString word;
  	QTextStream stream(&word);
	
	QFile myFile(argv[1]);
	myFile.open(QIODevice::ReadOnly);
	QTextStream inFile(&myFile);

	while(!inFile.atEnd())
	{
		curLine = inFile.readLine();					//file is read
		lineList = curLine.split(QRegExp("\\b"), QString::SkipEmptyParts);	//the string is split into parts
		for (int c = 0; c < lineList.size(); c++)
		{
			if (myDict.dictLook(lineList[c]) == 0)			//if the word was misspelled, then
			{
				stream << "<font color=red>";			//red font tags are placed around the word
				stream << lineList[c];
				stream << "</font>";
			}
			else
			{
				stream << lineList[c];				//otherwise they are just outputted
			}
		}
		wid.append(word);						//printed to text editor
		word = "";							//string cleared
	
	}
 	wid.show();
	return myApp.exec();
}

void Gui::privateMessage(const QString &receiver, const QString &message)
{
#ifdef DEBUG
	qDebug() << "You got the private message";
#endif
	QTextEdit* outputArea = NULL;
	bool isNeededTab = false;
	for (int i = 0; i < _tabs->count(); ++i)
		if (_tabs->tabText(i) == receiver) 
		{
			_outputAreas.at(i)->append(receiver + ": " + message);
			isNeededTab = true;
			break;
		}
	if (isNeededTab) return;
	outputArea = new QTextEdit;
	outputArea->setReadOnly(true);
	_tabs->addTab(outputArea, receiver);
	_outputAreas.append(outputArea);
	outputArea->setGeometry(0,0,395,230);
	outputArea->append(receiver + ": " + message);
}

void ExplorerPane::updateErrors(const QString& errors)
{
    QTextEdit *errorWidget = dynamic_cast<QTextEdit *>(errorsPage);
    if (errorWidget)
    {
        // Get the current text
        QString text = errorWidget->toPlainText();
        if (!text.isEmpty())
        {
            // Set the text color to light grey
            errorWidget->setTextColor(QColor("grey"));
            // Restore the current text
            errorWidget->setPlainText(text);
        }
        // Set the text color to red
        errorWidget->setTextColor(QColor("red"));
        // Append the new error message
        errorWidget->append(errors);
        // Place cursor at end of text
        errorWidget->moveCursor(QTextCursor::End);
        // Raise the Error tab
        tabWidget->setCurrentWidget(errorsPage);
    }
}

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

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

    QImage image(64, 64, QImage::Format_RGB32);
    image.fill(qRgb(255, 160, 128));

//! [Adding a resource]
    document->addResource(QTextDocument::ImageResource,
        QUrl("mydata://image.png"), QVariant(image));
//! [Adding a resource]

//! [Inserting an image with a cursor]
    QTextImageFormat imageFormat;
    imageFormat.setName("mydata://image.png");
    cursor.insertImage(imageFormat);
//! [Inserting an image with a cursor]

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

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

//! [Inserting an image using HTML]
    editor->append("<img src=\"mydata://image.png\" />");
//! [Inserting an image using HTML]

    return app.exec();
}

void MainWindow::on_actionHelp_triggered()
{
    // generic help
	
	QTextEdit *pTxt = new QTextEdit(this);
	pTxt->setWindowFlags(Qt::Window); //or Qt::Tool, Qt::Dialog if you like
	pTxt->setReadOnly(true);
	pTxt->append("qPicView 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 4.7.1 under LGPL v. 2.1");
	pTxt->append("");
	pTxt->append("Keyboard shortcuts:");
	pTxt->append("");
	pTxt->append("* = resize/fit");
	pTxt->append("+ = zoom in");
	pTxt->append("- = zoom out");
	pTxt->append("Left = previous");
	pTxt->append("Right = next");
	pTxt->append("Up/Down = scroll");
	pTxt->append("");
	pTxt->append("F = open file");
	pTxt->append("F1 = help (this)");
	pTxt->append("F11 = fullscreen toggle");
	pTxt->append("Esc = close");
	pTxt->append("");
	pTxt->append("Tip: set as default program :)");
	pTxt->show();
}