port from perforce

aiwaz/Aiwaz/Commands/CommandUserBase.cpp

@@ -0,0 +1,57 @@
+#include "stdafx.h"
+#include <algorithm>
+#include "CommandUserBase.h"
+
+
+CommandUserBase::CommandUserBase()
+{
+}
+
+
+CommandUserBase::~CommandUserBase()
+{
+	this->UnassignFromSceneNodes();
+	while (!m_Commands.empty())
+	{
+		delete m_Commands[0];
+		m_Commands.erase(m_Commands.begin());
+	}
+}
+
+
+const std::vector<Command*>& CommandUserBase::GetCommands() const
+{
+	return m_Commands;
+}
+
+
+void CommandUserBase::AssignToRenderCommandNode(IRenderCommandNode& argNode)
+{
+	m_RenderCommandNodesIamAssignedTo.push_back(&argNode);
+	argNode.MarkDirty();
+}
+
+
+void CommandUserBase::UnassignFromRenderCommandNode(IRenderCommandNode& argNode)
+{
+	std::vector<IRenderCommandNode*>::iterator found = std::find(m_RenderCommandNodesIamAssignedTo.begin(), m_RenderCommandNodesIamAssignedTo.end(), &argNode);
+	if (found != m_RenderCommandNodesIamAssignedTo.end())
+	{
+		m_RenderCommandNodesIamAssignedTo.erase(found);
+		argNode.MarkDirty();
+	}
+}
+
+
+void CommandUserBase::UnassignFromSceneNodes()
+{
+	while (!m_RenderCommandNodesIamAssignedTo.empty())
+		m_RenderCommandNodesIamAssignedTo.back()->RemoveCommandUser(*const_cast<CommandUserBase*>(this));
+}
+
+
+void CommandUserBase::MarkCommandsAsDirty()
+{
+	for (uint32 i = 0; i < m_RenderCommandNodesIamAssignedTo.size(); ++i)
+		m_RenderCommandNodesIamAssignedTo[i]->MarkDirty();
+}