94 lines
2.1 KiB
C++
94 lines
2.1 KiB
C++
#include <engine/app/v8/tree/Instance.hpp>
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#include <stdexcept>
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RBX::Instance::Instance()
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{
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}
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RBX::Instance::Instance(std::string name)
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{
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}
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bool RBX::Instance::contains(RBX::Instance* child)
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{
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}
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bool RBX::Instance::isAncestorOf(RBX::Instance* instance)
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{
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}
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bool RBX::Instance::askSetParent(RBX::Instance* instance)
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{
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return true;
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}
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bool RBX::Instance::canSetParent(RBX::Instance* instance)
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{
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return !instance || instance->canAddChild(this);
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}
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bool RBX::Instance::askAddChild(RBX::Instance* instance)
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{
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return true;
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}
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bool RBX::Instance::canAddChild(RBX::Instance* instance)
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{
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if(instance->contains(this) || instance->m_parent == this)
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return false;
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if(askAddChild(instance))
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return true;
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return instance->askSetParent(this);
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}
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void RBX::Instance::setName(std::string name)
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{
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if(name != this->m_name)
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{
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this->m_name = name;
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// raise property changed
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}
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}
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void RBX::Instance::setParent(RBX::Instance* newParent)
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{
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if(newParent != m_parent)
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{
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char error_text[255];
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if(this == newParent)
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{
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snprintf(error_text, 255, "Attempt to set %s as its own parent", m_name);
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throw std::runtime_error(error_text);
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}
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if(isAncestorOf(newParent))
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{
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snprintf(error_text, 255, "Attempt to set parent of %s to %s results in circular reference", newParent->getName(), m_name);
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throw std::runtime_error(error_text);
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}
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if(m_parent)
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{
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std::vector<boost::shared_ptr<RBX::Instance>>* children = m_parent->getChildren();
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auto child_it = std::find(children->begin(), children->end(), (boost::shared_ptr<RBX::Instance>)this);
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if(child_it != children->end())
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children->erase(child_it);
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if(m_parent->numChildren() == 0)
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{
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// signal onlastchildremoved
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}
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}
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m_parent = newParent;
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m_parent->m_children.push_back((boost::shared_ptr<RBX::Instance>)this);
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newParent->onChildAdded(this);
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}
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}
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void RBX::Instance::onChildAdded(RBX::Instance* childAdded)
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{
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} |