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annotate OrthancStone/Sources/Scene2D/Internals/FixedPointAligner.h @ 1979:b31e494e34c5

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 29 Oct 2022 17:10:21 +0200
parents 9c0adcc8feec
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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23 #pragma once
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24
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25 #include "../../Scene2DViewport/ViewportController.h"
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27 namespace OrthancStone
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28 {
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29 namespace Internals
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30 {
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31 // During a mouse event that modifies the view of a scene, keeps
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32 // one point (the pivot) at a fixed position on the canvas
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33 class FixedPointAligner : public boost::noncopyable
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34 {
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35 private:
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36 ScenePoint2D pivot_;
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37 ScenePoint2D canvas_;
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39 public:
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40 FixedPointAligner(const ViewportController& controller,
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41 const ScenePoint2D& p);
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43 void Apply(ViewportController& controller);
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44 };
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45 }
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46 }