customtextedit.cpp
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#include "customtextedit.h"
#include <QTextEdit>
CustomTextEdit::CustomTextEdit(QObject *parent) : QTextEdit((QWidget*)parent)
{
maxLength = 0;
connect(this,SIGNAL(textChanged()),this,SLOT(truncateText()));
}
void CustomTextEdit::setMaxLength(int length)
{
maxLength = length;
QString curText = toPlainText();
if ((maxLength > 0) && (curText.length() > maxLength))
{
curText = curText.left(maxLength);
setPlainText(curText);
}
}
int CustomTextEdit::getMaxLength()
{
return maxLength;
}
void CustomTextEdit::truncateText()
{
if(maxLength > 0)
{
QString curText = this->toPlainText();
if(curText.length() > maxLength)
{
this->setText(curText.left(maxLength));
this->moveCursor(QTextCursor::End);
}
}
}