C++ (Cpp) viewSettings Examples

Example #1

File: chatscene.cpp Project: hades/quassel

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";
}

Example #2

File: chatscene.cpp Project: ginggs/quassel2go

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);
}