KisLayerCollapseCommand.cpp

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/*
 *  SPDX-FileCopyrightText: 2024 Dmitry Kazakov <dimula73@gmail.com>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#include "KisLayerCollapseCommand.h"
 
#include <kis_node.h>
 
 
KisLayerCollapseCommand::KisLayerCollapseCommand(KisNodeSP node, bool oldValue, bool newValue, KUndo2Command *parent)
    : KUndo2Command(newValue ? kundo2_i18n("Collapse node %1", node->name()) : kundo2_i18n("Expand node %1", node->name()), parent)
    , m_node(node)
    , m_oldValue(oldValue)
    , m_newValue(newValue)
{
}
 
KisLayerCollapseCommand::KisLayerCollapseCommand(KisNodeSP node, bool newValue, KUndo2Command *parent)
    : KisLayerCollapseCommand(node, node->collapsed(), newValue, parent)
{
}
 
void KisLayerCollapseCommand::redo()
{
    m_node->setCollapsed(m_newValue);
}
 
void KisLayerCollapseCommand::undo()
{
    m_node->setCollapsed(m_oldValue);
}
 
bool KisLayerCollapseCommand::mergeWith(const KUndo2Command *other)
{
    const KisLayerCollapseCommand *cmd = dynamic_cast<const KisLayerCollapseCommand*>(other);
 
    if (cmd && cmd->m_node == m_node) {
        // verify the commands are actually chained
        KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(m_newValue == cmd->m_oldValue, false);
 
        m_newValue = cmd->m_newValue;
        return true;
    }
 
    return false;
}