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annotate OrthancStone/Sources/Scene2DViewport/OneGesturePointerTracker.h @ 1520:3a79d551dd8b

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hgignore fixes
author Benjamin Golinvaux <bgo@osimis.io>
date Fri, 31 Jul 2020 12:51:41 +0200
parents 244ad1e4e76a
children e731e62692a9
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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) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21 #pragma once
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22
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23 #include "IFlexiblePointerTracker.h"
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25 #include "../Viewport/IViewport.h"
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26
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27 #include <boost/shared_ptr.hpp>
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28 #include <boost/weak_ptr.hpp>
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30 namespace OrthancStone
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31 {
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32 /**
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33 This base is class allows to write simple trackers that deal with single
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34 drag gestures with only one touch. It is *not* suitable for multi-touch and
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35 multi-state trackers where various mouse operations need to be handled.
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37 In order to write such a tracker:
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38 - subclass this class
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39 - you may store the initial click/touch position in the constructor
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40 - implement PointerMove to react to pointer/touch events
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41 - implement Cancel to restore the state at initial tracker creation time
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43 */
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44 class OneGesturePointerTracker : public IFlexiblePointerTracker
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45 {
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46 public:
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47 OneGesturePointerTracker(boost::shared_ptr<IViewport> viewport);
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48 virtual void PointerUp(const PointerEvent& event) ORTHANC_OVERRIDE;
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49 virtual void PointerDown(const PointerEvent& event) ORTHANC_OVERRIDE;
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50 virtual bool IsAlive() const ORTHANC_OVERRIDE;
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52 protected:
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53 boost::shared_ptr<IViewport> viewport_;
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55 private:
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56 bool alive_;
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57 int currentTouchCount_;
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58 };
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59 }
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60