/*!
* \brief Using a path based on the node string, set the currently
* selected node
*
* \param route List defining the path using node strings starting at the root node
*
* \return True if successful
*/
bool MythUIButtonTree::SetNodeByString(QStringList route)
{
if (!m_rootNode)
{
DoSetCurrentNode(NULL);
return false;
}
MythGenericTree *foundNode = m_rootNode;
bool foundit = false;
if (!route.isEmpty())
{
if (route[0] == m_rootNode->getString())
{
if (route.size() > 1)
{
for (int i = 1; i < route.size(); i ++)
{
MythGenericTree *node = foundNode->getChildByName(route[i]);
if (node)
{
node->becomeSelectedChild();
foundNode = node;
foundit = true;
}
else
{
node = foundNode->getChildAt(0);
if (node)
{
node->becomeSelectedChild();
foundNode = node;
}
break;
}
}
}
else
foundit = true;
}
}
DoSetCurrentNode(foundNode);
m_currentDepth = qMax(0, (int)(foundNode->currentDepth() - m_depthOffset - m_numLists));
m_activeListID = qMin(foundNode->currentDepth() - m_depthOffset - 1, (int)(m_numLists - 1));
SetTreeState(true);
return foundit;
}
/*!
* \brief Remove the item from the tree
*
* \param item Item to be removed
* \param deleteNode Also delete the node from the tree? Modifies the tree.
*
* \return True if successful
*/
void MythUIButtonTree::RemoveItem(MythUIButtonListItem *item, bool deleteNode)
{
if (!item || !m_rootNode)
return;
MythGenericTree *node = qVariantValue<MythGenericTree *>(item->GetData());
if (node && node->getParent())
{
DoSetCurrentNode(node->getParent());
if (deleteNode)
node->getParent()->deleteNode(node);
else
node->SetVisible(false);
}
MythUIButtonList *list = item->parent();
list->RemoveItem(item);
if (list->IsEmpty())
{
if (m_currentDepth > 0)
m_currentDepth--;
else if (m_activeListID > 1)
m_activeListID--;
SetTreeState(true);
}
}
/*!
* \brief Handle a list item being clicked
*
* \param item The list item
*/
void MythUIButtonTree::handleClick(MythUIButtonListItem *item)
{
if (!item)
return;
MythGenericTree *node = qVariantValue<MythGenericTree*> (item->GetData());
if (DoSetCurrentNode(node))
emit itemClicked(item);
}
/*!
* \brief Using a path based on the node IDs, set the currently
* selected node
*
* \param route List defining the path using node IDs starting at the root node
*
* \return True if successful
*/
bool MythUIButtonTree::SetNodeById(QList<int> route)
{
MythGenericTree *node = m_rootNode->findNode(route);
if (node && node->isSelectable())
{
DoSetCurrentNode(node);
SetTreeState();
return true;
}
return false;
}
/*!
* \brief Handle a list item receiving focus
*
* \param item The list item
*/
void MythUIButtonTree::handleSelect(MythUIButtonListItem *item)
{
if (!item)
return;
MythUIButtonList *list = item->parent();
QString name = list->objectName();
// New list is automatically selected so we just need to deselect the old
// list
if (m_activeList)
m_activeList->Deselect();
m_activeListID = name.section(' ',2,2).toInt();
m_activeList = list;
MythGenericTree *node = qVariantValue<MythGenericTree*> (item->GetData());
DoSetCurrentNode(node);
SetTreeState();
}
/*!
* \brief Update the widget following a change
*/
void MythUIButtonTree::SetTreeState(bool refreshAll)
{
if (!m_initialized)
Init();
if (!m_rootNode)
return;
if (!m_currentNode)
DoSetCurrentNode(m_rootNode->getSelectedChild());
QList<MythGenericTree *> route = m_currentNode->getRoute();
// Sanity Checks
if (m_depthOffset >= route.size())
m_depthOffset = 0;
if (((int)m_currentDepth + m_depthOffset) >= route.size())
m_currentDepth = 0;
MythGenericTree *node = route.at(m_currentDepth + m_depthOffset);
if (m_currentDepth != m_oldDepth)
refreshAll = true;
m_oldDepth = m_currentDepth;
m_visibleLists = 0;
uint listid = 0;
while (listid < m_buttonlists.count())
{
MythUIButtonList *list = m_buttonlists.at(listid);
list->SetVisible(false);
list->SetActive(false);
MythGenericTree *selectedNode = NULL;
if (node)
selectedNode = node->getSelectedChild(true);
if (refreshAll || m_activeListID < listid)
{
if (!UpdateList(list, node))
{
listid++;
continue;
}
}
if (m_active && (listid == m_activeListID))
{
m_activeList = list;
list->SetActive(true);
DoSetCurrentNode(selectedNode);
emit itemSelected(list->GetItemCurrent());
}
listid++;
list->SetVisible(true);
m_visibleLists++;
node = selectedNode;
}
}
