DWORD CGUIPage::OnGetObjectUnderCursor(DWORD size, void *params)
{
OBJECTLIST::iterator olIter;
IGUIElement *lesserGE = NULL;
IGUIElement *newGE;
OBJUNDERCURSOR *data;
VERIFY_MESSAGE_SIZE(size, sizeof(OBJUNDERCURSOR));
data = (OBJUNDERCURSOR*)params;
float fCursorPosX = data->m_fPosX;
float fCursorPosY = data->m_fPosY;
data->m_Name = NULL;
data->m_CompType = NULL;
for(olIter = m_ObjectList.begin();
olIter != m_ObjectList.end();
olIter++)
{
newGE = dynamic_cast<IGUIElement*>(*olIter);
if(!newGE)
{
EngineGetToolBox()->SetErrorValue(ERR_NULL_POINTER);
EngineGetToolBox()->Log(LOGERROR, _T("Could not grab IGUIElement from list of gui elements"));
return MSG_ERROR;
}
if(newGE->IsCursorOver(fCursorPosX, fCursorPosY))
{
if(lesserGE==NULL)
{
lesserGE = newGE;
}
else if( lesserGE->GetZOrder() > newGE->GetZOrder() )
{
lesserGE = newGE;
}
}
}
if(lesserGE)
{
data->m_Name = lesserGE->GetName();
data->m_CompType = lesserGE->GetComponentType();
}
if(data->m_Name == NULL)
{
return MSG_HANDLED_PROCEED;
}
else
{
return MSG_HANDLED_STOP;
}
}
void CGUIPage::SortGUIElements()
{
IGUIElement *guiElement;
OBJECTLIST::iterator olIter = m_ObjectList.begin();
// clear sorted map
m_SortedMap.clear();
while(olIter != m_ObjectList.end())
{
guiElement = dynamic_cast<IGUIElement*>((*olIter));
if(guiElement == NULL)
{
m_ToolBox->SetErrorValue(ERR_NULL_POINTER);
m_ToolBox->Log(LOGERROR, _T("Could not cast to IGUIElement: %s"), (*olIter)->GetName());
continue;
}
// insert gui element into sorted map
m_SortedMap.insert(make_pair(guiElement->GetZOrder(), guiElement));
IHashString *type = guiElement->GetComponentType();
if (type)
{
static DWORD dwGroup = CHashString(_T("CGUIGroup")).GetUniqueID();
if (type->GetUniqueID() == dwGroup)
{
CGUIGroup *group = dynamic_cast<CGUIGroup*>(guiElement);
if (group)
{
group->SortElements();
}
}
}
olIter++;
}
// now clear object list
m_ObjectList.clear();
SORTEDGUIMAP::iterator sgmIter = m_SortedMap.begin();
while(sgmIter != m_SortedMap.end())
{
// added the gui elements into the list in sorted order
m_ObjectList.push_back(sgmIter->second);
sgmIter++;
}
}