/***************************************************************************
- * Copyright (C) 2005-2014 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);
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;
{
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();