cxTreeNode.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.
                 
Copyright (c) SINTEF Department of Medical Technology.
All rights reserved.
                 
CustusX is released under a BSD 3-Clause license.
                 
See Lisence.txt (https://github.com/SINTEFMedtek/CustusX/blob/master/License.txt) for details.
=========================================================================*/
#include "cxTreeNode.h"


namespace cx
{

CachedTreeNode::CachedTreeNode(TreeNodePtr base) : mBase(base)
{
        connect(mBase.get(), &TreeNode::changed, this, &CachedTreeNode::clearCache);
        connect(mBase.get(), &TreeNode::changed, this, &TreeNode::changed);
        mVisibleChildrenSet = false;
}

void CachedTreeNode::clearCache()
{
        mUid = QString();
        mType = QString();
        mVisibleParent.reset();
        mVisibleChildren.clear();
        mVisibleChildrenSet = false;
}

QString CachedTreeNode::getUid() const
{
        if (mUid.isEmpty())
                mUid = mBase->getUid();
        return mUid;
}

QString CachedTreeNode::getType() const
{
        if (mType.isEmpty())
                mType = mBase->getType();
        return mType;
}

std::vector<TreeNodePtr> CachedTreeNode::getVisibleChildren() const
{
//      return mBase->getVisibleChildren();
        if (!mVisibleChildrenSet)
        {
                std::vector<TreeNodePtr> children = mBase->getVisibleChildren();

                mVisibleChildren = std::vector<TreeNodeWeakPtr>(children.begin(), children.end());
                mVisibleChildrenSet = true;
        }

        std::vector<TreeNodePtr> retval(mVisibleChildren.size());
        for (unsigned i=0; i< retval.size(); ++i)
                retval[i] = mVisibleChildren[i].lock();
        return retval;
}

TreeNodePtr CachedTreeNode::getVisibleParent() const
{
//      return mBase->getVisibleParent();
        if (!mVisibleParent.lock())
                mVisibleParent = mBase->getVisibleParent();
        return mVisibleParent.lock();
}


} // namespace cx