atrooney-online-2/aotextarea.cpp
2017-06-16 16:07:34 +02:00

112 lines
2.9 KiB
C++

#include "aotextarea.h"
#include <QScrollBar>
#include <QTextCursor>
#include <QRegExp>
#include <QDebug>
AOTextArea::AOTextArea(QWidget *p_parent) : QTextBrowser(p_parent)
{
}
void AOTextArea::append_chatmessage(QString p_name, QString p_message)
{
const QTextCursor old_cursor = this->textCursor();
const int old_scrollbar_value = this->verticalScrollBar()->value();
const bool is_scrolled_down = old_scrollbar_value == this->verticalScrollBar()->maximum();
this->moveCursor(QTextCursor::End);
this->append("");
this->insertHtml("<b>" + p_name.toHtmlEscaped() + "</b>:&nbsp;");
//QRegExp regExp("((([A-Za-z]{3,9}:(?:\\/\\/)?)(?:[\\-;:&=\\+\\$,\\w]+@)?[A-Za-z0-9\\.\\-]+|(?:www\\.|[\\-;:&=\\+\\$,\\w]+@)[A-Za-z0-9\\.\\-]+)((?:\\/[\\+~%\\/\\.\\w\\-]*)?\\??(?:[\\-\\+=&;%@\\.\\w]*)#?(?:[\\.\\!\\/\\\\\\w]*))?)");
QRegExp omnis_dank_url_regex("\\b(https?://\\S+\\.\\S+)\\b");
//cheap workarounds ahoy
p_message += " ";
QString result = p_message.toHtmlEscaped().replace("\n", "<br>").replace(omnis_dank_url_regex, "<a href='\\1'>\\1</a>" );
this->insertHtml(result);
/*
QRegExp rx("\\bhttp://\\S+");
int first_index = rx.indexIn(p_message);
qDebug() << "number of rx indices: " << rx.captureCount();
if (first_index < 0)
{
this->insertPlainText(p_message);
qDebug() << "NO REGEX MATCHES";
return;
}
//indices where we found a regex match
QVector<int> rx_indices;
QStringList links = rx.capturedTexts();
qDebug() << "link size" << links.size();
rx_indices.append(first_index);
//start at one because first_index is already appended
for (int n_pos = 1 ; n_pos < rx.captureCount() ; ++n_pos)
rx_indices.append(rx.indexIn(p_message));
for (int msg_pos = 0 ; msg_pos < p_message.size() ; ++msg_pos)
{
int tag_index = rx_indices.indexOf(msg_pos);
if (tag_index < 0)
{
this->insertPlainText(p_message.at(msg_pos));
continue;
}
QString link = links.at(tag_index);
QString html_string = "<a href=\"" + link + "\">" + link + "</a>";
qDebug() << "html: " << html_string;
this->insertHtml(html_string);
msg_pos += link.size() - 1;
}
*/
/*
QStringList word_list = p_message.split(" ");
for (QString i_word : word_list)
{
if (i_word.startsWith("http"))
{
i_word.replace("\n", "").replace("\r", "");
this->insertHtml("<a href=\"" + i_word + "\">" + i_word + "</a> ");
}
else
this->insertPlainText(i_word + " ");
}
*/
if (old_cursor.hasSelection() || !is_scrolled_down)
{
// The user has selected text or scrolled away from the bottom: maintain position.
this->setTextCursor(old_cursor);
this->verticalScrollBar()->setValue(old_scrollbar_value);
}
else
{
// The user hasn't selected any text and the scrollbar is at the bottom: scroll to the bottom.
this->moveCursor(QTextCursor::End);
this->verticalScrollBar()->setValue(this->verticalScrollBar()->maximum());
}
}