Developer Documentation

GLTrackball.hh
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40 \*===========================================================================*/
41
42
43 //=============================================================================
44 //
45 // CLASS GLTrackball
46 //
47 //=============================================================================
48
49
50 #ifndef ACG_GLTRACKBALL_HH
51 #define ACG_GLTRACKBALL_HH
52
53
54 //== INCLUDES =================================================================
55
56
57 #include "GLState.hh"
58 #include "../Math/VectorT.hh"
59
60
61 //== NAMESPACES ===============================================================
62
63
64 namespace ACG {
65
66
67 //== CLASS DEFINITION =========================================================
68
69
70
71 class ACGDLLEXPORT GLTrackball
72 {
73 public:
74
75 explicit GLTrackball(GLState& _state);
76 ~GLTrackball() {}
77
78 void set_center(const Vec3f& _center) { center_ = _center; }
79
80 void mouse_press(int button, int x, int y);
81 void mouse_move(int x, int y);
82 void mouse_release(int button, int x, int y);
83
84
85 private:
86
87 void rotation(int x, int y);
88 void translation(int x, int y);
89 void zoom(int x, int y);
90
91 bool map_to_sphere(const Vec2i& _point, Vec3f& _result);
92
93
94 GLState& glstate_;
95 ACG::Vec3d center_;
96
97 Vec2i last_point_2D_;
98 Vec3f last_point_3D_;
99 bool last_point_ok_;
100
101 enum { ROTATION, TRANSLATION, ZOOM } action_;
102 bool button_down_[10];
103 };
104
105
106 //=============================================================================
107 } // namespace ACG
108 //=============================================================================
109 #endif // ACG_GLTRACKBALL_HH defined
110 //=============================================================================
111
ACG::GLState
Definition: GLState.hh:213
ACG
Namespace providing different geometric functions concerning angles.
Definition: BaseObjectData.hh:68
OpenMesh::VectorT
Definition: Vector11T.hh:83
ACG::GLTrackball
Definition: GLTrackball.hh:71