Mercurial > hg > orthanc-stone
diff Framework/Scene2D/Internals/FixedPointAligner.h @ 596:b716763571ad
IPointerTracker
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 26 Apr 2019 17:05:14 +0200 |
parents | |
children | 7efa2543699d |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Framework/Scene2D/Internals/FixedPointAligner.h Fri Apr 26 17:05:14 2019 +0200 @@ -0,0 +1,49 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2019 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Affero General Public License + * as published by the Free Software Foundation, either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#pragma once + +#include "../Scene2D.h" +#include "../ScenePoint2D.h" + +namespace OrthancStone +{ + namespace Internals + { + // During a mouse event that modifies the view of a scene, keeps + // one point (the pivot) at the same position on the canvas + class FixedPointAligner : public boost::noncopyable + { + private: + Scene2D& scene_; + ScenePoint2D pivot_; + ScenePoint2D canvas_; + + public: + FixedPointAligner(Scene2D& scene, + const ScenePoint2D& p, + unsigned int canvasWidth, + unsigned int canvasHeight); + + void Apply(); + }; + } +}