kis_image_command.cpp

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/*
 *  SPDX-FileCopyrightText: 2002 Patrick Julien <freak@codepimps.org>
 *  SPDX-FileCopyrightText: 2007 Sven Langkamp <sven.langkamp@gmail.com>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#include "kis_image_commands.h"
#include <klocalizedstring.h>
 
#include "kis_image.h"
#include "kis_layer.h"
 
 
 
KisImageCommand::KisImageCommand(const KUndo2MagicString& name, KisImageWSP image, KUndo2Command *parent)
    : KUndo2Command(name, parent)
    , m_image(image)
{
}
 
KisImageCommand::~KisImageCommand()
{
}
 
static inline bool isLayer(KisNodeSP node) {
    return qobject_cast<KisLayer*>(node.data());
}
 
KisImageCommand::UpdateTarget::UpdateTarget(KisImageWSP image,
                                            KisNodeSP removedNode,
                                            const QRect &updateRect)
    : m_image(image), m_updateRect(updateRect)
{
    m_removedNodeParent = removedNode->parent();
    m_removedNodeIndex = m_removedNodeParent ? m_removedNodeParent->index(removedNode) : -1;
}
 
void KisImageCommand::UpdateTarget::update() {
    if (!m_removedNodeParent) return;
    KIS_ASSERT_RECOVER_RETURN(m_removedNodeIndex >= 0);
 
    KisNodeSP node;
    int index = m_removedNodeIndex;
 
    while ((node = m_removedNodeParent->at(index)) && !isLayer(node)) {
        index++;
    }
 
    if (!node) {
        index = qMax(0, m_removedNodeIndex - 1);
 
        while ((node = m_removedNodeParent->at(index)) && !isLayer(node)) {
            index--;
        }
    }
 
    if (node) {
        node->setDirty(m_updateRect);
    } else {
        KisImageSP image = m_image.toStrongRef();
        if (image) {
            image->refreshGraphAsync(m_removedNodeParent);
            m_removedNodeParent->setDirty(m_updateRect);
        }
    }
}