1 // viewmgr.hxx -- class for managing all the views in the flightgear world.
3 // Written by Curtis Olson, started October 2000.
5 // Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
30 #include <simgear/compiler.h>
31 #include <simgear/structure/subsystem_mgr.hxx>
32 #include <simgear/math/SGMath.hxx>
37 typedef SGSharedPtr<FGViewer> FGViewerPtr;
39 // Define a structure containing view information
40 class FGViewMgr : public SGSubsystem
53 virtual void unbind ();
54 virtual void update (double dt);
55 virtual void reinit ();
58 inline int size() const { return views.size(); }
59 inline int get_current() const { return current; }
61 FGViewer *get_current_view();
62 const FGViewer *get_current_view() const;
64 FGViewer *get_view( int i );
65 const FGViewer *get_view( int i ) const;
67 FGViewer *next_view();
68 FGViewer *prev_view();
73 void add_view( FGViewer * v );
78 list<const char*> tied_props;
85 // callbacks in manager to access viewer methods
86 double getViewHeadingOffset_deg () const;
87 void setViewHeadingOffset_deg (double offset);
88 double getViewGoalHeadingOffset_deg () const;
89 void setViewGoalHeadingOffset_deg (double offset);
90 double getViewPitchOffset_deg () const;
91 void setViewPitchOffset_deg (double tilt);
92 double getGoalViewPitchOffset_deg () const;
93 void setGoalViewRollOffset_deg (double tilt);
94 double getViewRollOffset_deg () const;
95 void setViewRollOffset_deg (double tilt);
96 double getGoalViewRollOffset_deg () const;
97 void setGoalViewPitchOffset_deg (double tilt);
98 double getViewXOffset_m () const;
99 void setViewXOffset_m (double x);
100 double getViewYOffset_m () const;
101 void setViewYOffset_m (double y);
102 double getViewZOffset_m () const;
103 void setViewZOffset_m (double z);
104 double getViewTargetXOffset_m () const;
105 void setViewTargetXOffset_m (double x);
106 double getViewTargetYOffset_m () const;
107 void setViewTargetYOffset_m (double y);
108 double getViewTargetZOffset_m () const;
109 void setViewTargetZOffset_m (double z);
110 double getFOV_deg () const;
111 void setFOV_deg (double fov);
112 double getARM_deg () const; // Aspect Ratio Multiplier
113 void setARM_deg (double fov);
114 double getNear_m () const;
115 void setNear_m (double near_m);
116 void setViewAxisLong (double axis);
117 void setViewAxisLat (double axis);
118 int getView () const;
119 void setView (int newview);
121 // quaternion accessors, for debugging:
122 double getCurrentViewOrientation_w() const;
123 double getCurrentViewOrientation_x() const;
124 double getCurrentViewOrientation_y() const;
125 double getCurrentViewOrientation_z() const;
126 double getCurrentViewOrOffset_w() const;
127 double getCurrentViewOrOffset_x() const;
128 double getCurrentViewOrOffset_y() const;
129 double getCurrentViewOrOffset_z() const;
130 double getCurrentViewFrame_w() const;
131 double getCurrentViewFrame_x() const;
132 double getCurrentViewFrame_y() const;
133 double getCurrentViewFrame_z() const;
135 bool stationary () const;
137 // copies current offset settings to current-view path...
138 void copyToCurrent ();
141 SGPropertyNode_ptr view_number;
142 vector<SGPropertyNode_ptr> config_list;
143 typedef std::vector<FGViewerPtr> viewer_list;
145 SGVec3d abs_viewer_position;
148 SGQuatd current_view_orientation, current_view_or_offset;
154 // This takes the conventional aviation XYZ body system
155 // i.e. x=forward, y=starboard, z=bottom
156 // which is widely used in FGFS
157 // and rotates it into the OpenGL camera system
158 // i.e. Xprime=starboard, Yprime=top, Zprime=aft.
159 inline const SGQuatd fsb2sta()
161 return SGQuatd(-0.5, -0.5, 0.5, 0.5);
164 #endif // _VIEWMGR_HXX