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comparison OrthancStone/Sources/Scene2D/Internals/FixedPointAligner.h @ 1972:9c0adcc8feec

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refactoring to simplify OneGesturePointerTracker
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 28 Oct 2022 16:21:28 +0200
parents 7053b8a0aaec
children b31e494e34c5
comparison
equal deleted inserted replaced
1971:e5b31d55206d 1972:9c0adcc8feec
20 * <http://www.gnu.org/licenses/>. 20 * <http://www.gnu.org/licenses/>.
21 **/ 21 **/
22 22
23 #pragma once 23 #pragma once
24 24
25 #include "../../Scene2DViewport/PredeclaredTypes.h" 25 #include "../../Scene2DViewport/ViewportController.h"
26 #include "../../Scene2D/ScenePoint2D.h"
27 #include "../../Viewport/IViewport.h"
28
29 #include <boost/weak_ptr.hpp>
30 26
31 namespace OrthancStone 27 namespace OrthancStone
32 { 28 {
33 namespace Internals 29 namespace Internals
34 { 30 {
35 // During a mouse event that modifies the view of a scene, keeps 31 // During a mouse event that modifies the view of a scene, keeps
36 // one point (the pivot) at a fixed position on the canvas 32 // one point (the pivot) at a fixed position on the canvas
37 class FixedPointAligner : public boost::noncopyable 33 class FixedPointAligner : public boost::noncopyable
38 { 34 {
39 private: 35 private:
40 boost::weak_ptr<IViewport> viewport_; 36 ScenePoint2D pivot_;
41 ScenePoint2D pivot_; 37 ScenePoint2D canvas_;
42 ScenePoint2D canvas_;
43
44 /**
45 This will return a scoped lock to the viewport.
46 If the viewport does not exist anymore, then nullptr is returned.
47 */
48 IViewport::ILock* GetViewportLock();
49 38
50 public: 39 public:
51 FixedPointAligner(boost::weak_ptr<IViewport> viewport, 40 FixedPointAligner(ViewportController& controller,
52 const ScenePoint2D& p); 41 const ScenePoint2D& p);
53 42
54 void Apply(); 43 void Apply(ViewportController& controller);
55 }; 44 };
56 } 45 }
57 } 46 }