QTextEdit. To make selected text as Bold.

**KIBSOFT** · 6th January 2010, 23:12

There is a QTextEdit, and how to make selected text as Bold?

P.S. Sorry for probable mistakes in the text.

**nikhilqt** · 7th January 2010, 08:56

use html tags while setting a text.

textEdit->setText("<html><b>Hello</b</html>");

go through QtAssistant, checkout "QTextEdit Class".

**KIBSOFT** · 7th January 2010, 09:44

I use textCursor() method for return selected text and then I don't know what to do with it

In documentation I found QTextFormat Class, but i don't understand how to use it..

**KIBSOFT** · 7th January 2010, 12:55

I found an example in the documentation:

QTextDocument *document = edit->document();
QTextCursor cursor(document);

cursor.movePosition(QTextCursor::Start);
cursor.movePosition(QTextCursor::EndOfLine, QTextCursor::KeepAnchor);

QTextCharFormat format;
format.setFontWeight(QFont::Bold);

cursor.mergeCharFormat(format);//do the text as Bold

**nikhilqt** · 7th January 2010, 14:32

Ok. I just tried a way. But you need to do tweak in a little bit for total functionality.

connect the signal slot,

Qt Code:

Switch view

connect(ui.textEdit, SIGNAL(copyAvailable(bool)), this, SLOT(formatText(bool)));

connect(ui.textEdit, SIGNAL(copyAvailable(bool)), this, SLOT(formatText(bool)));

To copy to clipboard, switch view to plain text mode

and slot goes like this

Qt Code:

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void samplewidget::formatText(bool bSelectState)
{
	if(!bSelectState)
		return;
 
	ui.textEdit->copy();
 
	QClipboard* pClip = QApplication::clipboard();
	QString str = pClip->text(QClipboard::Clipboard);
 
	QString sFullString = ui.textEdit->toPlainText();
	int pos = ui.textEdit->textCursor().position();
 
	pos -= str.length();
	QString str1 = "<html><b>" + str + "</b></html>";
	sFullString.replace(pos, str.length(), str1);
 
	ui.textEdit->setText(sFullString);
}

void samplewidget::formatText(bool bSelectState)
{
	if(!bSelectState)
		return;
	
	ui.textEdit->copy();

	QClipboard* pClip = QApplication::clipboard();
	QString str = pClip->text(QClipboard::Clipboard);

	QString sFullString = ui.textEdit->toPlainText();
	int pos = ui.textEdit->textCursor().position();
	
	pos -= str.length();
	QString str1 = "<html><b>" + str + "</b></html>";
	sFullString.replace(pos, str.length(), str1);

	ui.textEdit->setText(sFullString);
}

To copy to clipboard, switch view to plain text mode

**Chumpen** · 14th December 2016, 10:47

This is the code that is easy for me.

Qt Code:

Switch view

QTextCharFormat format;
format.setFontWeight(QFont::Bold);
ui->plainTextEdit->textCursor().mergeCharFormat(format);

QTextCharFormat format;
format.setFontWeight(QFont::Bold);
ui->plainTextEdit->textCursor().mergeCharFormat(format);

To copy to clipboard, switch view to plain text mode

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