e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
111 lines
2.5 KiB
C++
111 lines
2.5 KiB
C++
/* SPDX-FileCopyrightText: 2012-2022 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup freestyle
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* \brief Class to represent a group node. This node can contains several children.
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* \brief It also contains a transform matrix indicating the transform state of the underlying
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* children.
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*/
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#include "NodeGroup.h"
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namespace Freestyle {
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void NodeGroup::AddChild(Node *iChild)
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{
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if (nullptr == iChild) {
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return;
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}
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_Children.push_back(iChild);
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iChild->addRef();
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}
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int NodeGroup::destroy()
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{
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/** Node::destroy makes a release on the object and then returns the reference counter.
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* If the reference counter is equal to 0, that means that nobody else is linking this node
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* group and that we can destroy the whole underlying tree. Else, one or several Node link this
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* node group, and we only returns the reference counter decremented by Node::destroy();
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*/
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int refThis = Node::destroy();
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// if refThis != 0, we can't destroy the tree
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if (0 != refThis) {
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return refThis;
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}
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// If we are here, that means that nobody else needs our NodeGroup and we can destroy it.
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int refCount = 0;
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vector<Node *>::iterator node;
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for (node = _Children.begin(); node != _Children.end(); ++node) {
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refCount = (*node)->destroy();
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if (0 == refCount) {
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delete (*node);
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}
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}
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_Children.clear();
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return refThis;
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}
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void NodeGroup::accept(SceneVisitor &v)
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{
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v.visitNodeGroup(*this);
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v.visitNodeGroupBefore(*this);
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for (vector<Node *>::iterator node = _Children.begin(), end = _Children.end(); node != end;
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++node) {
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(*node)->accept(v);
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}
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v.visitNodeGroupAfter(*this);
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}
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void NodeGroup::DetachChildren()
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{
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vector<Node *>::iterator node;
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for (node = _Children.begin(); node != _Children.end(); ++node) {
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(*node)->release();
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}
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_Children.clear();
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}
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void NodeGroup::DetachChild(Node *iChild)
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{
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/* int found = 0; */ /* UNUSED */
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vector<Node *>::iterator node;
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for (node = _Children.begin(); node != _Children.end(); ++node) {
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if ((*node) == iChild) {
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(*node)->release();
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_Children.erase(node);
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/* found = 1; */ /* UNUSED */
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break;
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}
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}
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}
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void NodeGroup::RetrieveChildren(vector<Node *> &oNodes)
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{
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oNodes = _Children;
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}
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const BBox<Vec3r> &NodeGroup::UpdateBBox()
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{
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vector<Node *>::iterator node;
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clearBBox();
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for (node = _Children.begin(); node != _Children.end(); ++node) {
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AddBBox((*node)->UpdateBBox());
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}
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return Node::UpdateBBox();
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}
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} /* namespace Freestyle */
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