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https://gitea.wildfiregames.com/0ad/0ad
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157c6af18e
Avoid cases of filenames Update years in terms and other legal(ish) documents Don't update years in license headers, since change is not meaningful Will add linter rule in seperate commit Happy recompiling everyone! Original Patch By: Nescio Comment By: Gallaecio Differential Revision: D2620 This was SVN commit r27786.
142 lines
3.3 KiB
C++
142 lines
3.3 KiB
C++
/* Copyright (C) 2010 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "CommandProc.h"
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#include <cassert>
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#include <algorithm>
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//////////////////////////////////////////////////////////////////////////
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template<typename T> T next_it(T x) { T t = x; return ++t; }
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template<typename T> void delete_fn(T* v) { delete v; }
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//////////////////////////////////////////////////////////////////////////
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using namespace AtlasMessage;
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namespace AtlasMessage {
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CommandProc& GetCommandProc()
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{
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static CommandProc commandProc;
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return commandProc;
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}
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cmdHandlers& GetCmdHandlers()
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{
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static cmdHandlers h;
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return h;
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}
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}
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CommandProc::CommandProc()
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{
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// Start the list with a NULL, so m_CurrentCommand can point at
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// something even when the command stack is empty
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m_Commands.push_back(NULL);
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m_CurrentCommand = m_Commands.begin();
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}
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CommandProc::~CommandProc()
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{
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// Make sure Destroy has been called before now (to avoid
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// problems from the destruction order of static variables)
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ENSURE(!m_Commands.size());
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}
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void CommandProc::Destroy()
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{
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std::for_each(m_Commands.begin(), m_Commands.end(), delete_fn<Command>);
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m_Commands.clear();
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}
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void CommandProc::Submit(Command* cmd)
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{
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// If some commands have been undone at the time we insert this new one,
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// delete and remove them all.
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std::for_each(next_it(m_CurrentCommand), m_Commands.end(), delete_fn<Command>);
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m_Commands.erase(next_it(m_CurrentCommand), m_Commands.end());
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assert(next_it(m_CurrentCommand) == m_Commands.end());
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m_CurrentCommand = m_Commands.insert(next_it(m_CurrentCommand), cmd);
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(*m_CurrentCommand)->Do();
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}
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void CommandProc::Undo()
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{
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if (m_CurrentCommand != m_Commands.begin())
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{
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(*m_CurrentCommand)->Undo();
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--m_CurrentCommand;
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}
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}
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void CommandProc::Redo()
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{
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if (next_it(m_CurrentCommand) != m_Commands.end())
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{
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++m_CurrentCommand;
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(*m_CurrentCommand)->Redo();
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}
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}
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void CommandProc::Merge()
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{
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if (m_CurrentCommand == m_Commands.begin())
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{
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debug_warn(L"Merge illogic: no commands");
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return;
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}
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if (next_it(m_CurrentCommand) != m_Commands.end())
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{
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debug_warn(L"Merge illogic: not at stack top");
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return;
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}
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cmdIt prev = m_CurrentCommand;
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--prev;
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if (prev == m_Commands.begin())
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{
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debug_warn(L"Merge illogic: only 1 command");
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return;
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}
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if ((*prev)->GetType() != (*m_CurrentCommand)->GetType())
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{
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const char* a = (*prev)->GetType();
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const char* b = (*m_CurrentCommand)->GetType();
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debug_printf("[incompatible: %s -> %s]\n", a, b);
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debug_warn(L"Merge illogic: incompatible command");
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return;
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}
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(*m_CurrentCommand)->Merge(*prev);
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delete *m_CurrentCommand;
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m_Commands.erase(m_CurrentCommand);
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m_CurrentCommand = prev;
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}
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