#include "aotextarea.h"
AOTextArea::AOTextArea(QWidget *p_parent)
: AOTextArea(5000, p_parent)
{}
AOTextArea::AOTextArea(int p_log_length, QWidget *p_parent)
: QTextBrowser(p_parent)
{
this->document()->setMaximumBlockCount(p_log_length);
}
void AOTextArea::append_chatmessage(QString p_name, QString p_message, QString p_name_colour, QString p_color)
{
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("");
if (!p_name.isEmpty())
{
this->insertHtml("" + p_name.toHtmlEscaped() + ": ");
// cheap workarounds ahoy
p_message += " ";
}
QString result = p_message.toHtmlEscaped().replace("\n", "
").replace(url_parser_regex, "\\1");
if (!p_color.isEmpty())
{
result = "" + result + "";
}
this->insertHtml(result);
this->auto_scroll(old_cursor, old_scrollbar_value, is_scrolled_down);
}
void AOTextArea::auto_scroll(QTextCursor old_cursor, int old_scrollbar_value, bool is_scrolled_down)
{
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());
}
}