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0001 // ct_lvtqtc_undo_expand.cpp                                       -*-C++-*-
0002 
0003 /*
0004 // Copyright 2023 Codethink Ltd <codethink@codethink.co.uk>
0005 // SPDX-License-Identifier: Apache-2.0
0006 //
0007 // Licensed under the Apache License, Version 2.0 (the "License");
0008 // you may not use this file except in compliance with the License.
0009 // You may obtain a copy of the License at
0010 //
0011 //     http://www.apache.org/licenses/LICENSE-2.0
0012 //
0013 // Unless required by applicable law or agreed to in writing, software
0014 // distributed under the License is distributed on an "AS IS" BASIS,
0015 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0016 // See the License for the specific language governing permissions and
0017 // limitations under the License.
0018 */
0019 
0020 #include <ct_lvtqtc_graphicsscene.h>
0021 #include <ct_lvtqtc_graphicsview.h>
0022 #include <ct_lvtqtc_lakosentity.h>
0023 #include <ct_lvtqtc_undo_expand.h>
0024 #include <ct_lvtqtc_util.h>
0025 
0026 #include <QPointF>
0027 
0028 using namespace Codethink::lvtqtc;
0029 
0030 struct UndoExpand::Private {
0031     GraphicsScene *scene;
0032     std::string nodeId;
0033     QPointF newPosition;
0034     QPointF originalPosition;
0035     LakosEntity::RelayoutBehavior behavior;
0036 };
0037 
0038 UndoExpand::UndoExpand(GraphicsScene *scene,
0039                        const std::string& nodeId,
0040                        std::optional<QPointF> moveToPosition,
0041                        LakosEntity::RelayoutBehavior behavior):
0042     d(std::make_unique<UndoExpand::Private>(Private{scene,
0043                                                     nodeId,
0044                                                     moveToPosition ? *moveToPosition : scene->entityById(nodeId)->pos(),
0045                                                     scene->entityById(nodeId)->pos(),
0046                                                     behavior}))
0047 {
0048     setText(QObject::tr("Toggle Expand %1").arg(QString::fromStdString(nodeId)));
0049 }
0050 
0051 UndoExpand::~UndoExpand() = default;
0052 
0053 namespace {
0054 
0055 void toggleEntity(LakosEntity *item, QPointF moveToPosition, LakosEntity::RelayoutBehavior behavior)
0056 {
0057     if (item == nullptr) {
0058         return;
0059     }
0060     item->toggleExpansion(QtcUtil::CreateUndoAction::e_No, moveToPosition, behavior);
0061 }
0062 
0063 } // namespace
0064 
0065 void UndoExpand::undo()
0066 {
0067     toggleEntity(d->scene->entityById(d->nodeId), d->originalPosition, d->behavior);
0068 }
0069 
0070 void UndoExpand::redo()
0071 {
0072     toggleEntity(d->scene->entityById(d->nodeId), d->newPosition, d->behavior);
0073 }