QModelIndex GraphModel::index(int row, int column, const QModelIndex &parent) const
{
if (!hasIndex(row, column, parent))
{
return QModelIndex();
}
GraphItem *parentItem = NULL;
if (!parent.isValid())
{
parentItem = rootItem;
}
else
{
parentItem = static_cast<GraphItem*>(parent.internalPointer());
}
GraphItem *childItem = parentItem->Child(row);
if (childItem)
{
return createIndex(row, column, childItem);
}
return QModelIndex();
}
void * GraphModel::ItemData(const QModelIndex &index) const
{
if (index.isValid())
{
GraphItem *item = static_cast<GraphItem*>(index.internalPointer());
return item->GetUserData();
}
return NULL;
}
QVariant GraphModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
{
return QVariant();
}
if (role != Qt::DisplayRole)
{
return QVariant();
}
GraphItem *item = static_cast<GraphItem*>(index.internalPointer());
return item->Data(index.column());
}
int GraphModel::rowCount(const QModelIndex &parent) const
{
if (parent.column() > 0)
{
return 0;
}
GraphItem *parentItem = ParentItem(parent);
if(parentItem)
{
return parentItem->ChildrenCount();
}
return 0;
}
QModelIndex GraphModel::index(int row, int column, const QModelIndex &parent) const
{
if (!hasIndex(row, column, parent))
{
return QModelIndex();
}
GraphItem *parentItem = ParentItem(parent);
GraphItem *childItem = parentItem->Child(row);
if (childItem)
{
return createIndex(row, column, childItem);
}
return QModelIndex();
}
QModelIndex GraphModel::parent(const QModelIndex &index) const
{
if (!index.isValid())
{
return QModelIndex();
}
GraphItem *childItem = static_cast<GraphItem*>(index.internalPointer());
GraphItem *parentItem = childItem->GetParent();
if (parentItem == rootItem)
{
return QModelIndex();
}
return createIndex(parentItem->Row(), 0, parentItem);
}
int GraphModel::rowCount(const QModelIndex &parent) const
{
GraphItem *parentItem;
if (parent.column() > 0)
{
return 0;
}
if (!parent.isValid())
{
parentItem = rootItem;
}
else
{
parentItem = static_cast<GraphItem*>(parent.internalPointer());
}
return parentItem->ChildrenCount();
}
void GraphView::showGraph(bool show, int id)
{
if (show)
_hide.remove(id);
else
_hide.insert(id);
_visible.clear();
_bounds = QRectF();
for (int i = 0; i < _graphs.count(); i++) {
GraphItem* gi = _graphs.at(i);
if (_hide.contains(gi->id()))
removeItem(gi);
else {
addItem(gi);
_visible.append(gi);
_bounds |= gi->bounds();
}
}
}
void GraphView::loadGraph(const Graph &graph, PathItem *path, int id)
{
if (graph.size() < 2)
return;
GraphItem *gi = new GraphItem(graph);
gi->setGraphType(_graphType);
gi->setId(id);
gi->setColor(_palette.nextColor());
gi->setWidth(_width);
connect(this, SIGNAL(sliderPositionChanged(qreal)), gi,
SLOT(emitSliderPositionChanged(qreal)));
connect(gi, SIGNAL(sliderPositionChanged(qreal)), path,
SLOT(moveMarker(qreal)));
connect(path, SIGNAL(selected(bool)), gi, SLOT(selected(bool)));
_graphs.append(gi);
if (!_hide.contains(id)) {
_visible.append(gi);
_scene->addItem(gi);
_bounds |= gi->bounds();
setXUnits();
}
}