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qTox/widget/chatareawidget.cpp

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/*
Copyright (C) 2014 by Project Tox <https://tox.im>
This file is part of qTox, a Qt-based graphical interface for Tox.
This program is libre software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the COPYING file for more details.
*/
#include "chatareawidget.h"
#include <QAbstractTextDocumentLayout>
#include <QMessageBox>
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#include <QScrollBar>
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ChatAreaWidget::ChatAreaWidget(QWidget *parent) :
QTextEdit(parent)
{
setReadOnly(true);
viewport()->setCursor(Qt::ArrowCursor);
setContextMenuPolicy(Qt::CustomContextMenu);
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setUndoRedoEnabled(false);
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}
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ChatAreaWidget::~ChatAreaWidget()
{
for (ChatAction *it : messages)
delete it;
}
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void ChatAreaWidget::mouseReleaseEvent(QMouseEvent * event)
{
QTextEdit::mouseReleaseEvent(event);
int pos = this->document()->documentLayout()->hitTest(event->pos(), Qt::ExactHit);
if (pos > 0)
{
QTextCursor cursor(document());
cursor.setPosition(pos);
if( ! cursor.atEnd() )
{
cursor.setPosition(pos+1);
QTextFormat format = cursor.charFormat();
if (format.isImageFormat())
{
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QString imageName = format.toImageFormat().name();
if (QRegExp("^data:ftrans.*").exactMatch(imageName))
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{
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QString data = imageName.right(imageName.length() - 12);
int endpos = data.indexOf("/png;base64");
data = data.left(endpos);
int middlepos = data.indexOf(".");
QString widgetID = data.left(middlepos);
QString widgetBtn = data.right(data.length() - middlepos - 1);
emit onFileTranfertInterract(widgetID, widgetBtn);
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}
}
}
}
}
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QString ChatAreaWidget::getHtmledMessages()
{
QString res("<table width=100%>\n");
for (ChatAction *it : messages)
{
res += it->getHtml();
}
res += "</table>";
return res;
}
void ChatAreaWidget::insertMessage(ChatAction *msgAction)
{
if (msgAction == nullptr)
return;
messages.append(msgAction);
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//updateChatContent();
moveCursor(QTextCursor::End);
moveCursor(QTextCursor::PreviousCell);
insertHtml(msgAction->getHtml());
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}
void ChatAreaWidget::updateChatContent()
{
QScrollBar* scroll = verticalScrollBar();
lockSliderToBottom = scroll && scroll->value() == scroll->maximum();
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setUpdatesEnabled(false);
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setHtml(getHtmledMessages());
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setUpdatesEnabled(true);
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if (lockSliderToBottom)
sliderPosition = scroll->maximum();
scroll->setValue(sliderPosition);
}
void ChatAreaWidget::clearMessages()
{
for (ChatAction *it : messages)
delete it;
updateChatContent();
}