Mercurial > hg > orthanc-stone
view Framework/Scene2DViewport/OneGesturePointerTracker.h @ 1186:3284c3fd96ad broker
merge
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 22 Nov 2019 09:51:47 +0100 |
parents | e42b491f1fb2 |
children | 2d8ab34c8c91 |
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/** * 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 "IFlexiblePointerTracker.h" namespace OrthancStone { /** This base is class allows to write simple trackers that deal with single drag gestures with only one touch. It is *not* suitable for multi-touch and multi-state trackers where various mouse operations need to be handled. In order to write such a tracker: - subclass this class - you may store the initial click/touch position in the constructor - implement PointerMove to react to pointer/touch events - implement Cancel to restore the state at initial tracker creation time */ class OneGesturePointerTracker : public IFlexiblePointerTracker { public: OneGesturePointerTracker(boost::weak_ptr<ViewportController> controllerW); virtual void PointerUp(const PointerEvent& event) ORTHANC_OVERRIDE; virtual void PointerDown(const PointerEvent& event) ORTHANC_OVERRIDE; virtual bool IsAlive() const ORTHANC_OVERRIDE; protected: boost::shared_ptr<ViewportController> GetController(); private: boost::weak_ptr<ViewportController> controllerW_; bool alive_; int currentTouchCount_; }; }