indent selection in QPlainTextEdit

[qt_gotcha]

I do this to increase the indent of a selection of lines in a plainTextEdit, but nothing happens:

QTextCursor cur = plainEdit->textCursor(); // contains the selection
	QTextBlockFormat tbf = cur.blockFormat(); //selection format
	tbf.setIndent(10); // change indent
	cur.setBlockFormat(tbf);  // put it all back
	plainEdit->setTextCursor(cur);

QTextCursor cur = plainEdit->textCursor(); // contains the selection
	QTextBlockFormat tbf = cur.blockFormat(); //selection format
	tbf.setIndent(10); // change indent
	cur.setBlockFormat(tbf);  // put it all back
	plainEdit->setTextCursor(cur);

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wordwrap is off so a block is a line. This doesn't work, somebody has some pointers? thanks

[qt_gotcha]

This is my code to do this, I add a space instead of doing a real indent, but it is fine for me. If anyone can make this more efficient, I am all ears!

QTextCursor cur = ETEditor->textCursor();
	int a = cur.anchor();
	int p = cur.position();
 
	cur.setPosition(a);
	cur.movePosition(QTextCursor::StartOfBlock,QTextCursor::MoveAnchor);
	a = cur.position();
	// save a new anchor at the beginning of the line of the selected text
	cur.setPosition(a);
	cur.setPosition(p, QTextCursor::KeepAnchor);
	// set a new selection with the new beginning
	QString str = cur.selection().toPlainText();
	QStringList list = str.split("\n");
	// get the selected text and split into lines
 
	for (int i = 0; i < list.count(); i++)
		list[i].insert(0," ");
	//insert a space at the beginning of each line
 
	str=list.join("\n");
	cur.removeSelectedText();
	cur.insertText(str);
	// put the new text back
	cur.setPosition(a);
	cur.setPosition(p, QTextCursor::KeepAnchor);
	// reselect the text for more indents
 
	ETEditor->setTextCursor(cur);
	// put the whole thing back into the main text

QTextCursor cur = ETEditor->textCursor();
	int a = cur.anchor();
	int p = cur.position();

	cur.setPosition(a);
	cur.movePosition(QTextCursor::StartOfBlock,QTextCursor::MoveAnchor);
	a = cur.position();
	// save a new anchor at the beginning of the line of the selected text
	cur.setPosition(a);
	cur.setPosition(p, QTextCursor::KeepAnchor);
	// set a new selection with the new beginning
	QString str = cur.selection().toPlainText();
	QStringList list = str.split("\n");
	// get the selected text and split into lines

	for (int i = 0; i < list.count(); i++)
		list[i].insert(0," ");
	//insert a space at the beginning of each line

	str=list.join("\n");
	cur.removeSelectedText();
	cur.insertText(str);
	// put the new text back
	cur.setPosition(a);
	cur.setPosition(p, QTextCursor::KeepAnchor);
	// reselect the text for more indents

	ETEditor->setTextCursor(cur);
	// put the whole thing back into the main text

To copy to clipboard, switch view to plain text mode