KoMultiPathPointMergeCommand.cpp

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/*
 *  SPDX-FileCopyrightText: 2017 Dmitry Kazakov <dimula73@gmail.com>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#include "KoMultiPathPointMergeCommand.h"
#include <KoPathPointData.h>
 
#include <KoPathCombineCommand.h>
#include <KoPathPointMergeCommand.h>
#include <KoSelection.h>
 
#include "kis_assert.h"
 
 
struct Q_DECL_HIDDEN KoMultiPathPointMergeCommand::Private
{
    Private(const KoPathPointData &_pointData1, const KoPathPointData &_pointData2, KoShapeControllerBase *_controller, KoSelection *_selection)
        : pointData1(_pointData1),
          pointData2(_pointData2),
          controller(_controller),
          selection(_selection)
    {
    }
 
    KoPathPointData pointData1;
    KoPathPointData pointData2;
    KoShapeControllerBase *controller;
    KoSelection *selection;
 
 
    QScopedPointer<KoPathCombineCommand> combineCommand;
    QScopedPointer<KUndo2Command> mergeCommand;
};
 
KoMultiPathPointMergeCommand::KoMultiPathPointMergeCommand(const KoPathPointData &pointData1, const KoPathPointData &pointData2, KoShapeControllerBase *controller, KoSelection *selection, KUndo2Command *parent)
    : KUndo2Command(kundo2_i18n("Merge points"), parent),
      m_d(new Private(pointData1, pointData2, controller, selection))
{
}
 
KoMultiPathPointMergeCommand::~KoMultiPathPointMergeCommand()
{
}
 
KUndo2Command *KoMultiPathPointMergeCommand::createMergeCommand(const KoPathPointData &pointData1, const KoPathPointData &pointData2)
{
    return new KoPathPointMergeCommand(pointData1, pointData2);
}
 
void KoMultiPathPointMergeCommand::redo()
{
    // Create shapes during the first call only.
    if (!m_d->mergeCommand && !m_d->combineCommand)
    {
        if (m_d->pointData1.pathShape != m_d->pointData2.pathShape) {
            KIS_SAFE_ASSERT_RECOVER_RETURN(m_d->controller);
 
            QList<KoPathShape*> shapes = { m_d->pointData1.pathShape, m_d->pointData2.pathShape };
            m_d->combineCommand.reset(new KoPathCombineCommand(m_d->controller, shapes));
            
            KoPathPointData newPD1 = m_d->combineCommand->originalToCombined(m_d->pointData1);
            KoPathPointData newPD2 = m_d->combineCommand->originalToCombined(m_d->pointData2);
 
            m_d->mergeCommand.reset(createMergeCommand(newPD1, newPD2));
        }
        else {
            m_d->mergeCommand.reset(createMergeCommand(m_d->pointData1, m_d->pointData2));
        }
    }
 
    KoShape *mergedShape = 0;
    if (m_d->mergeCommand)
    {
        m_d->mergeCommand->redo();
        mergedShape = m_d->pointData1.pathShape;
    }
 
    if (m_d->combineCommand)
    {
        m_d->combineCommand->redo();
        mergedShape = m_d->combineCommand->combinedPath();
    }
 
    if (m_d->selection) {
        m_d->selection->select(mergedShape);
    }
 
    KUndo2Command::redo();
}
 
KoPathShape *KoMultiPathPointMergeCommand::testingCombinedPath() const
{
    return m_d->combineCommand ? m_d->combineCommand->combinedPath() : 0;
}
 
void KoMultiPathPointMergeCommand::undo()
{
    KUndo2Command::undo();
 
    if (m_d->mergeCommand) {
        m_d->mergeCommand->undo();
    }
 
    if (m_d->combineCommand) {
        m_d->combineCommand->undo();
    }
 
    if (m_d->selection) {
        m_d->selection->select(m_d->pointData1.pathShape);
        if (m_d->pointData1.pathShape != m_d->pointData2.pathShape) {
            m_d->selection->select(m_d->pointData2.pathShape);
        }
    }
}