/***************************************************************************
- * Copyright (C) 2005-2013 by the Quassel Project *
+ * Copyright (C) 2005-2018 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
{
QList<BufferId> filterList;
filterList.append(bufferId);
- MessageFilter *filter = new MessageFilter(Client::messageModel(), filterList, this);
+ auto *filter = new MessageFilter(Client::messageModel(), filterList, this);
init(filter);
}
void ChatView::init(MessageFilter *filter)
{
- _bufferContainer = 0;
+ _bufferContainer = nullptr;
_currentScaleFactor = 1;
_invalidateFilter = false;
+ setAttribute(Qt::WA_AcceptTouchEvents);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
setAlignment(Qt::AlignLeft|Qt::AlignBottom);
_scrollTimer.setInterval(100);
_scrollTimer.setSingleShot(true);
- connect(&_scrollTimer, SIGNAL(timeout()), SLOT(scrollTimerTimeout()));
+ connect(&_scrollTimer, &QTimer::timeout, this, &ChatView::scrollTimerTimeout);
_scene = new ChatScene(filter, filter->idString(), viewport()->width(), this);
- connect(_scene, SIGNAL(sceneRectChanged(const QRectF &)), this, SLOT(adjustSceneRect()));
- connect(_scene, SIGNAL(lastLineChanged(QGraphicsItem *, qreal)), this, SLOT(lastLineChanged(QGraphicsItem *, qreal)));
- connect(_scene, SIGNAL(mouseMoveWhileSelecting(const QPointF &)), this, SLOT(mouseMoveWhileSelecting(const QPointF &)));
+ connect(_scene, &QGraphicsScene::sceneRectChanged, this, &ChatView::adjustSceneRect);
+ connect(_scene, &ChatScene::lastLineChanged, this, &ChatView::lastLineChanged);
+ connect(_scene, &ChatScene::mouseMoveWhileSelecting, this, &ChatView::mouseMoveWhileSelecting);
setScene(_scene);
- connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(verticalScrollbarChanged(int)));
- _lastScrollbarPos = verticalScrollBar()->value();
+ connect(verticalScrollBar(), &QAbstractSlider::valueChanged, this, &ChatView::verticalScrollbarChanged);
+ _lastScrollbarPos = verticalScrollBar()->maximum();
- connect(Client::networkModel(), SIGNAL(markerLineSet(BufferId, MsgId)), SLOT(markerLineSet(BufferId, MsgId)));
+ connect(Client::networkModel(), &NetworkModel::markerLineSet, this, &ChatView::markerLineSet);
// only connect if client is synched with a core
if (Client::isConnected())
- connect(Client::ignoreListManager(), SIGNAL(ignoreListChanged()), this, SLOT(invalidateFilter()));
+ connect(Client::ignoreListManager(), &ClientIgnoreListManager::ignoreListChanged, this, &ChatView::invalidateFilter);
}
bool ChatView::event(QEvent *event)
{
if (event->type() == QEvent::KeyPress) {
- QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
+ auto *keyEvent = static_cast<QKeyEvent *>(event);
switch (keyEvent->key()) {
case Qt::Key_Up:
case Qt::Key_Down:
}
}
- if (event->type() == QEvent::Wheel) {
+ if (event->type() == QEvent::TouchBegin && ((QTouchEvent*)event)->device()->type() == QTouchDevice::TouchScreen) {
+ // Enable scrolling by draging, disable selecting/clicking content
+ setDragMode(QGraphicsView::ScrollHandDrag);
+ setInteractive(false);
+ // if scrollbar is not visible we need to request backlog below else we need to accept
+ // the event now (return true) so that we will receive TouchUpdate and TouchEnd/TouchCancel
+ if (verticalScrollBar()->isVisible()) return true;
+ }
+
+ if (event->type() == QEvent::TouchEnd || event->type() == QEvent::TouchCancel) {
+ // End scroll and reset settings to default
+ setDragMode(QGraphicsView::NoDrag);
+ setInteractive(true);
+ _firstTouchUpdateHappened = false;
+ return true;
+ }
+
+ if (event->type() == QEvent::TouchUpdate) {
+ if (!_firstTouchUpdateHappened) {
+ // After the first movement of a Touch-Point, calculate the distance in both axis
+ // and if the point moved more horizontally abort scroll.
+ QTouchEvent::TouchPoint p = ((QTouchEvent*)event)->touchPoints().at(0);
+ double dx = qAbs(p.lastPos().x() - p.pos().x());
+ double dy = qAbs(p.lastPos().y() - p.pos().y());
+ if (dx > dy) {
+ setDragMode(QGraphicsView::NoDrag);
+ setInteractive(true);
+ }
+ _firstTouchUpdateHappened = true;
+ }
+ // Applying the movement happens automatically by the drag-mode
+ }
+ if (event->type() == QEvent::Wheel || (event->type() == QEvent::TouchBegin && ((QTouchEvent*)event)->device()->type() == QTouchDevice::TouchScreen) || event->type() == QEvent::TouchUpdate) {
if (!verticalScrollBar()->isVisible()) {
scene()->requestBacklog();
return true;
void ChatView::resizeEvent(QResizeEvent *event)
{
+ // if view is currently scrolled to bottom, we want it that way after resizing
+ bool atBottom = (_lastScrollbarPos == verticalScrollBar()->maximum());
+
QGraphicsView::resizeEvent(event);
- // FIXME: do we really need to scroll down on resize?
+ // if scrolling to bottom, do it immediately.
+ if(atBottom)
+ {
+ // we can reduce viewport updates if we scroll to the bottom allready at the beginning
+ verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+ }
- // we can reduce viewport updates if we scroll to the bottom allready at the beginning
- verticalScrollBar()->setValue(verticalScrollBar()->maximum());
scene()->updateForViewport(viewport()->width(), viewport()->height());
adjustSceneRect();
- _lastScrollbarPos = verticalScrollBar()->maximum();
- verticalScrollBar()->setValue(verticalScrollBar()->maximum());
-
+ if(atBottom)
+ {
+ _lastScrollbarPos = verticalScrollBar()->maximum();
+ verticalScrollBar()->setValue(verticalScrollBar()->maximum());
+ }
checkChatLineCaches();
}
MsgId ChatView::lastMsgId() const
{
if (!scene())
- return MsgId();
+ return {};
QAbstractItemModel *model = scene()->model();
if (!model || model->rowCount() == 0)
- return MsgId();
+ return {};
return model->index(model->rowCount() - 1, 0).data(MessageModel::MsgIdRole).value<MsgId>();
}
if (line)
return line->msgId();
- return MsgId();
+ return {};
}
{
QSet<ChatLine *> result;
foreach(QGraphicsItem *item, items(viewport()->rect().adjusted(-1, -1, 1, 1), mode)) {
- ChatLine *line = qgraphicsitem_cast<ChatLine *>(item);
+ auto *line = qgraphicsitem_cast<ChatLine *>(item);
if (line)
result.insert(line);
}
ChatLine *ChatView::lastVisibleChatLine(bool ignoreDayChange) const
{
if (!scene())
- return 0;
+ return nullptr;
QAbstractItemModel *model = scene()->model();
if (!model || model->rowCount() == 0)
- return 0;
+ return nullptr;
int row = -1;
if (row >= 0)
return scene()->chatLine(row);
- return 0;
+ return nullptr;
}
void ChatView::addActionsToMenu(QMenu *menu, const QPointF &pos)
{
// zoom actions
- BufferWidget *bw = qobject_cast<BufferWidget *>(bufferContainer());
+ auto *bw = qobject_cast<BufferWidget *>(bufferContainer());
if (bw) {
bw->addActionsToMenu(menu, pos);
menu->addSeparator();