Example #1
0
void PlotScene::handleSelection(void)
{
    if (this->selectionLocked > 0)
        return;

    QList<QGraphicsItem*> items = this->selectedItems();

    /* On n'a sélectionné qu'un élément, ça n'est donc pas une selection
     * rectangulaire --> on a sélectionné un point
     */
    if (items.count() == 1)
    {
        CoordinateItem* coord = qgraphicsitem_cast<CoordinateItem*>(items.first());

        if (coord != NULL)
        {
            PlotCurve* parent = qgraphicsitem_cast<PlotCurve*>(coord->parentItem());

            if (parent != NULL)
                emit this->pointSelected(coord->index().toFloat(), parent->id());
        }
    }
    else if (items.count() > 1)
    {
        QMap< PlotCurve*, QPair<float, float> > intervalsBounds;

        foreach (QGraphicsItem* item, items)
        {
            CoordinateItem* coord = qgraphicsitem_cast<CoordinateItem*>(item);

            if (coord != NULL)
            {
                PlotCurve* parent = qgraphicsitem_cast<PlotCurve*>(coord->parentItem());

                if (parent != NULL)
                {
                    if (! intervalsBounds.contains(parent))
                    {
                        intervalsBounds[parent].first = coord->index().toFloat();
                        intervalsBounds[parent].second = coord->index().toFloat();
                    }
                    else
                    {
                        if (coord->index().toFloat() < intervalsBounds[parent].first)
                            intervalsBounds[parent].first = coord->index().toFloat();
                        else if (coord->index().toFloat() > intervalsBounds[parent].second)
                            intervalsBounds[parent].second = coord->index().toFloat();
                    }
                }
            }
        }
Example #2
0
bool PlotScene::removeCurves(const QVariant& idTrack)
{
    PlotCurve* targetCurve;
    for (int i(0); i < this->curves.count(); ++i)
    {
        targetCurve = this->curves.at(i);

        if(targetCurve->id() == idTrack)
        {
            this->curves.removeAt(i);
            this->removeItem(targetCurve);
            delete targetCurve;
            return true;
        }
    }

    return false;
}