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/************************************************************************
*
* Copyright (C) 2017-2023 IRCAD France
* Copyright (C) 2017 IHU Strasbourg
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "command_history.hpp"
#include <core/com/signal.hpp>
#include <core/com/signal.hxx>
#include <core/com/signals.hpp>
#include <core/com/slot.hpp>
#include <core/com/slot.hxx>
#include <core/com/slots.hpp>
#include <core/com/slots.hxx>
#include <numeric>
namespace sight::module::ui::history
{
static const core::com::signals::key_t CANUNDO_SIGNAL = "canUndo";
static const core::com::signals::key_t CANREDO_SIGNAL = "canRedo";
static const core::com::slots::key_t ENQUEUE_SLOT = "enqueue";
static const core::com::slots::key_t UNDO_SLOT = "undo";
static const core::com::slots::key_t REDO_SLOT = "redo";
static const core::com::slots::key_t CLEAR_SLOT = "clear";
//-----------------------------------------------------------------------------
command_history::command_history()
{
new_slot(ENQUEUE_SLOT, &command_history::enqueue, this);
new_slot(UNDO_SLOT, &command_history::undo, this);
new_slot(REDO_SLOT, &command_history::redo, this);
new_slot(CLEAR_SLOT, &command_history::clear, this);
m_can_undo_sig = new_signal<can_do_signal_t>(CANUNDO_SIGNAL);
m_can_redo_sig = new_signal<can_do_signal_t>(CANREDO_SIGNAL);
}
//-----------------------------------------------------------------------------
command_history::~command_history()
= default;
//-----------------------------------------------------------------------------
void command_history::configuring()
{
service::config_t config = this->get_config();
auto max_commands = config.get_optional<std::size_t>("maxCommands");
auto max_memory = config.get_optional<std::size_t>("maxMemory");
if(max_commands.is_initialized())
{
m_undo_redo_manager.set_command_count(max_commands.value());
}
if(max_memory.is_initialized())
{
m_undo_redo_manager.set_history_size(max_memory.value());
}
}
//-----------------------------------------------------------------------------
void command_history::starting()
{
this->emit_modified_sig();
}
//-----------------------------------------------------------------------------
void command_history::updating()
{
this->emit_modified_sig();
}
//-----------------------------------------------------------------------------
void command_history::stopping()
{
m_undo_redo_manager.clear();
}
//-----------------------------------------------------------------------------
void command_history::enqueue(sight::ui::history::command::sptr _command)
{
m_undo_redo_manager.enqueue(_command);
this->emit_modified_sig();
}
//-----------------------------------------------------------------------------
void command_history::undo()
{
m_undo_redo_manager.undo();
this->emit_modified_sig();
}
//-----------------------------------------------------------------------------
void command_history::redo()
{
m_undo_redo_manager.redo();
this->emit_modified_sig();
}
//-----------------------------------------------------------------------------
void command_history::clear()
{
m_undo_redo_manager.clear();
this->emit_modified_sig();
}
//-----------------------------------------------------------------------------
void command_history::emit_modified_sig() const
{
m_can_undo_sig->async_emit(m_undo_redo_manager.can_undo());
m_can_redo_sig->async_emit(m_undo_redo_manager.can_redo());
}
//-----------------------------------------------------------------------------
} // namespace sight::module::ui::history
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