void ChatScene::secondHandlePositionChanged(qreal xpos) {
if(_secondColHandlePos == xpos)
return;
_secondColHandlePos = xpos;
ChatViewSettings viewSettings(this);
viewSettings.setValue("SecondColumnHandlePos", _secondColHandlePos);
ChatViewSettings defaultSettings;
defaultSettings.setValue("SecondColumnHandlePos", _secondColHandlePos);
// clock_t startT = clock();
// disabling the index while doing this complex updates is about
// 2 to 10 times faster!
//setItemIndexMethod(QGraphicsScene::NoIndex);
QList<ChatLine *>::iterator lineIter = _lines.end();
QList<ChatLine *>::iterator lineIterBegin = _lines.begin();
qreal linePos = _sceneRect.y() + _sceneRect.height();
qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
qreal contentsWidth = _sceneRect.width() - secondColumnHandle()->sceneRight();
QPointF contentsPos(secondColumnHandle()->sceneRight(), 0);
while(lineIter != lineIterBegin) {
lineIter--;
(*lineIter)->setSecondColumn(senderWidth, contentsWidth, contentsPos, linePos);
}
//setItemIndexMethod(QGraphicsScene::BspTreeIndex);
updateSceneRect();
setHandleXLimits();
emit layoutChanged();
// clock_t endT = clock();
// qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
}
ChatScene::ChatScene(QAbstractItemModel *model, const QString &idString, qreal width, ChatView *parent)
: QGraphicsScene(0, 0, width, 0, (QObject *)parent),
_chatView(parent),
_idString(idString),
_model(model),
_singleBufferId(BufferId()),
_sceneRect(0, 0, width, 0),
_firstLineRow(-1),
_viewportHeight(0),
_markerLine(new MarkerLineItem(width)),
_markerLineVisible(false),
_markerLineValid(false),
_markerLineJumpPending(false),
_cutoffMode(CutoffRight),
_selectingItem(0),
_selectionStart(-1),
_isSelecting(false),
_clickMode(NoClick),
_clickHandled(true),
_leftButtonPressed(false)
{
MessageFilter *filter = qobject_cast<MessageFilter*>(model);
if(filter && filter->isSingleBufferFilter()) {
_singleBufferId = filter->singleBufferId();
}
addItem(_markerLine);
connect(this, SIGNAL(sceneRectChanged(const QRectF &)), _markerLine, SLOT(sceneRectChanged(const QRectF &)));
ChatViewSettings defaultSettings;
int defaultFirstColHandlePos = defaultSettings.value("FirstColumnHandlePos", 80).toInt();
int defaultSecondColHandlePos = defaultSettings.value("SecondColumnHandlePos", 200).toInt();
ChatViewSettings viewSettings(this);
_firstColHandlePos = viewSettings.value("FirstColumnHandlePos", defaultFirstColHandlePos).toInt();
_secondColHandlePos = viewSettings.value("SecondColumnHandlePos", defaultSecondColHandlePos).toInt();
_firstColHandle = new ColumnHandleItem(QtUi::style()->firstColumnSeparator());
addItem(_firstColHandle);
_firstColHandle->setXPos(_firstColHandlePos);
connect(_firstColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(firstHandlePositionChanged(qreal)));
connect(this, SIGNAL(sceneRectChanged(const QRectF &)), _firstColHandle, SLOT(sceneRectChanged(const QRectF &)));
_secondColHandle = new ColumnHandleItem(QtUi::style()->secondColumnSeparator());
addItem(_secondColHandle);
_secondColHandle->setXPos(_secondColHandlePos);
connect(_secondColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(secondHandlePositionChanged(qreal)));
connect(this, SIGNAL(sceneRectChanged(const QRectF &)), _secondColHandle, SLOT(sceneRectChanged(const QRectF &)));
setHandleXLimits();
if(model->rowCount() > 0)
rowsInserted(QModelIndex(), 0, model->rowCount() - 1);
connect(model, SIGNAL(rowsInserted(const QModelIndex &, int, int)),
this, SLOT(rowsInserted(const QModelIndex &, int, int)));
connect(model, SIGNAL(rowsAboutToBeRemoved(const QModelIndex &, int, int)),
this, SLOT(rowsAboutToBeRemoved(const QModelIndex &, int, int)));
connect(model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
this, SLOT(rowsRemoved()));
connect(model, SIGNAL(dataChanged(QModelIndex, QModelIndex)), SLOT(dataChanged(QModelIndex, QModelIndex)));
#ifdef HAVE_WEBKIT
webPreview.timer.setSingleShot(true);
connect(&webPreview.timer, SIGNAL(timeout()), this, SLOT(webPreviewNextStep()));
#endif
_showWebPreview = defaultSettings.showWebPreview();
defaultSettings.notify("ShowWebPreview", this, SLOT(showWebPreviewChanged()));
_clickTimer.setInterval(QApplication::doubleClickInterval());
_clickTimer.setSingleShot(true);
connect(&_clickTimer, SIGNAL(timeout()), SLOT(clickTimeout()));
setItemIndexMethod(QGraphicsScene::NoIndex);
}