kis_undo_stores.cpp

Go to the documentation of this file.

/*
 *  SPDX-FileCopyrightText: 2011 Dmitry Kazakov <dimula73@gmail.com>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#include "kis_undo_stores.h"
 
#include <kundo2stack.h>
 
 
/*****************************************************************/
/*                KisSurrogateUndoStore                           */
/*****************************************************************/
 
KisSurrogateUndoStore::KisSurrogateUndoStore()
    : m_undoStack(new KUndo2Stack)
{
    // Use direct connection to avoid queueing the signal forwarding (BUG:447985)
    connect(m_undoStack, SIGNAL(indexChanged(int)), this, SIGNAL(historyStateChanged()), Qt::DirectConnection);
}
 
KisSurrogateUndoStore::~KisSurrogateUndoStore()
{
    // disconnect the signal to avoid the it being emitted on destruction
    disconnect(m_undoStack, SIGNAL(indexChanged(int)), this, SIGNAL(historyStateChanged()));
    delete m_undoStack;
}
 
const KUndo2Command* KisSurrogateUndoStore::presentCommand()
{
    return m_undoStack->command(m_undoStack->index() - 1);
}
 
void KisSurrogateUndoStore::undoLastCommand()
{
    m_undoStack->undo();
}
 
void KisSurrogateUndoStore::addCommand(KUndo2Command *command)
{
    if(!command) return;
    m_undoStack->push(command);
}
 
void KisSurrogateUndoStore::beginMacro(const KUndo2MagicString& macroName)
{
    m_undoStack->beginMacro(macroName);
}
 
void KisSurrogateUndoStore::endMacro()
{
    m_undoStack->endMacro();
}
 
void KisSurrogateUndoStore::undo()
{
    m_undoStack->undo();
}
 
void KisSurrogateUndoStore::redo()
{
    m_undoStack->redo();
}
 
void KisSurrogateUndoStore::purgeRedoState()
{
    m_undoStack->purgeRedoState();
}
 
void KisSurrogateUndoStore::clear()
{
    m_undoStack->clear();
}
 
void KisSurrogateUndoStore::undoAll()
{
    while(m_undoStack->canUndo()) {
        m_undoStack->undo();
    }
}
 
void KisSurrogateUndoStore::redoAll()
{
    while(m_undoStack->canRedo()) {
        m_undoStack->redo();
    }
}
 
 
/*****************************************************************/
/*                KisDumbUndoStore                               */
/*****************************************************************/
 
const KUndo2Command* KisDumbUndoStore::presentCommand()
{
    return 0;
}
 
void KisDumbUndoStore::undoLastCommand()
{
    Q_EMIT historyStateChanged();
}
 
void KisDumbUndoStore::addCommand(KUndo2Command *command)
{
    command->redo();
    delete command;
 
    Q_EMIT historyStateChanged();
}
 
void KisDumbUndoStore::beginMacro(const KUndo2MagicString& macroName)
{
    Q_UNUSED(macroName);
}
 
void KisDumbUndoStore::endMacro()
{
    Q_EMIT historyStateChanged();
}
 
void KisDumbUndoStore::purgeRedoState()
{
}