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/****************************************************************************
**
** Copyright (C) 2013 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "Qt3DSStateEditorTransactionImpl.h"
namespace qt3ds {
namespace state {
namespace editor {
// Some things have to be implemented below so that we can take advantage of the full
// SEditorImpl definition.
STransaction::STransaction(TFoundationPtr alloc, STransactionManagerImpl &inEditor,
const TEditorStr &inName)
: ITransaction(inName)
, m_Alloc(alloc)
, mRefCount(0)
, m_Editor(inEditor)
{
}
STransaction::~STransaction() {}
void STransaction::addRef() { atomicIncrement(&mRefCount); }
void STransaction::release()
{
atomicDecrement(&mRefCount);
if (mRefCount <= 0) {
TFoundationPtr fnd(m_Alloc);
NVDelete(fnd->getAllocator(), this);
}
}
void STransaction::ChangesToEditors()
{
m_EditorsList.clear();
m_EditorsList.resize(m_Changes.size());
eastl::transform(m_Changes.begin(), m_Changes.end(), m_EditorsList.begin(),
SChangeToEditor());
}
void STransaction::SendDoSignals()
{
ChangesToEditors();
CreateRemovedEditorsList(true);
for (TChangeListenerList::iterator listenerIter = m_Editor->m_ChangeListeners.begin(),
listenerEnd = m_Editor->m_ChangeListeners.end();
listenerIter != listenerEnd; ++listenerIter)
(*listenerIter)->OnDataChange(m_EditorsList, m_RemovedEditorsList);
}
void STransaction::Do()
{
for (TChangeList::iterator iter = m_Changes.begin(), end = m_Changes.end(); iter != end;
++iter)
(*iter)->Do();
for (TRemovePairList::iterator iter = m_RemovedPairs.begin(),
end = m_RemovedPairs.end();
iter != end; ++iter) {
if (iter->first)
iter->second->RemoveIdFromContext();
else
iter->second->AddIdToContext();
}
SendDoSignals();
}
void STransaction::SilentUndo()
{
for (TChangeList::reverse_iterator iter = m_Changes.rbegin(), end = m_Changes.rend();
iter != end; ++iter)
(*iter)->Undo();
for (TRemovePairList::iterator iter = m_RemovedPairs.begin(),
end = m_RemovedPairs.end();
iter != end; ++iter) {
if (iter->first)
iter->second->AddIdToContext();
else
iter->second->RemoveIdFromContext();
}
}
void STransaction::Undo()
{
SilentUndo();
m_EditorsList.clear();
m_EditorsList.resize(m_Changes.size());
eastl::transform(m_Changes.rbegin(), m_Changes.rend(), m_EditorsList.begin(),
SChangeToEditor());
CreateRemovedEditorsList(false);
for (TChangeListenerList::iterator listenerIter = m_Editor->m_ChangeListeners.begin(),
listenerEnd = m_Editor->m_ChangeListeners.end();
listenerIter != listenerEnd; ++listenerIter)
(*listenerIter)->OnDataChange(m_EditorsList, m_RemovedEditorsList);
}
struct STransactionImplConnection : public IStateSignalConnection
{
TFoundationPtr &m_Alloc;
QT3DSI32 mRefCount;
STransactionManagerImpl &m_Editor;
IEditorChangeListener &m_ChangeListener;
STransactionImplConnection(TFoundationPtr &alloc, STransactionManagerImpl &e,
IEditorChangeListener &listener)
: m_Alloc(alloc)
, mRefCount(0)
, m_Editor(e)
, m_ChangeListener(listener)
{
}
// Implemented below editor to use editor's interfaces
virtual ~STransactionImplConnection()
{
m_Editor.RemoveChangeListener(m_ChangeListener);
}
QT3DS_STATE_IMPLEMENT_REF_COUNT_ADDREF_RELEASE(m_Alloc, mRefCount);
};
void STransactionManagerImpl::addRef() { atomicIncrement(&mRefCount); }
void STransactionManagerImpl::release()
{
atomicDecrement(&mRefCount);
if (mRefCount <= 0) {
TFoundationPtr fnd(m_EditorFoundation);
NVDelete(fnd->getAllocator(), this);
}
}
TSignalConnectionPtr
STransactionManagerImpl::AddChangeListener(IEditorChangeListener &inListener)
{
m_ChangeListeners.push_back(&inListener);
// If we have any listeners, then we can't be destroyed as their connections will still
// need
// to talk to us to release its stuff.
if (m_ChangeListeners.size() == 1)
addRef();
return QT3DS_NEW(m_EditorFoundation->getAllocator(),
STransactionImplConnection)(m_EditorFoundation, *this, inListener);
}
void STransactionManagerImpl::RemoveChangeListener(IEditorChangeListener &inListener)
{
TChangeListenerList::iterator iter =
eastl::find(m_ChangeListeners.begin(), m_ChangeListeners.end(), &inListener);
if (iter != m_ChangeListeners.end())
m_ChangeListeners.erase(iter);
if (m_ChangeListeners.size() == 0)
release();
}
TTransactionPtr STransactionManagerImpl::BeginTransaction(const TEditorStr &inName)
{
if (!m_Transaction) {
QT3DS_ASSERT(m_OpenCount == 0);
m_Transaction = QT3DS_NEW(m_EditorFoundation->getAllocator(),
STransaction)(m_EditorFoundation, *this, inName);
}
++m_OpenCount;
return m_Transaction.mPtr;
}
TTransactionPtr STransactionManagerImpl::GetOpenTransaction() { return m_Transaction.mPtr; }
STransaction *STransactionManagerImpl::GetOpenTransactionImpl()
{
return m_Transaction.mPtr;
}
void STransactionManagerImpl::RollbackTransaction()
{
--m_OpenCount;
if (m_OpenCount <= 0) {
if (m_Transaction) {
m_Transaction->Undo();
m_Transaction = NULL;
}
}
QT3DS_ASSERT(m_OpenCount == 0);
m_OpenCount = 0;
}
void STransactionManagerImpl::EndTransaction()
{
TTransactionPtr retval = m_Transaction.mPtr;
--m_OpenCount;
if (m_OpenCount <= 0)
m_Transaction = NULL;
QT3DS_ASSERT(m_OpenCount >= 0);
m_OpenCount = 0;
}
void STransactionManagerImpl::OnObjectDeleted(TObjPtr inObj)
{
if (m_Transaction)
m_Transaction->m_RemovedPairs.push_back(eastl::make_pair(true, inObj));
if (m_ObjListener)
m_ObjListener->OnObjectDeleted(inObj);
}
void STransactionManagerImpl::OnObjectCreated(TObjPtr inObj)
{
if (m_Transaction)
m_Transaction->m_RemovedPairs.push_back(eastl::make_pair(false, inObj));
if (m_ObjListener)
m_ObjListener->OnObjectCreated(inObj);
}
}
}
}
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