QT 打开连接 和QTextEdit添加超级连接例子

#include "mytextedit.h" #include <QUrl> #include <qdesktopservices.h> #include <QDebug> #define LINK_RegulaString "((http[s]{0,1}|ftp)://[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)|(www.[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)" //#define LINK_RegulaString "((http[s]{0,1}|ftp)://[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)|(www.[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)" myTextEdit::myTextEdit(QWidget *parent) : QTextEdit(parent) { } void myTextEdit::SetTextContent(const QString &str) { UrlData data; QString content = str; QString strShow; unsigned int size = this->toPlainText().size(); QRegExp regexp(LINK_RegulaString); int pos = content.indexOf(regexp); while(pos>=0) { QString tmp1 = content.mid(0, pos); //this->append(tmp1); strShow += tmp1; size += tmp1.size(); int count1 = size; QString tmp2 = content.mid(pos, regexp.matchedLength()); //this->append(this->GetlinkUrl(tmp2)); strShow += this->GetlinkUrl(tmp2); size += tmp2.size(); int count2 = size+1; data.firstPos = count1; data.lastPos = count2; data.url = tmp2; m_list << data; content = content.mid(pos+regexp.matchedLength()); pos = content.indexOf(regexp); } strShow += content; this->append(strShow); } QString myTextEdit::GetlinkUrl(const QString &str) { return "<a href='"+str+"'>"+str+"</a>"; } void myTextEdit::mouseReleaseEvent(QMouseEvent *event) { int index = this->textCursor().anchor(); for(int i = 0; i< m_list.count(); i++) { if(index > m_list.at(i).firstPos && index <m_list.at(i).lastPos) { //emit openUrl(m_list.at(i).url); QDesktopServices::openUrl( QUrl(m_list.at(i).url)); } } QTextEdit::mousePressEvent(event); }