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.
29 #include <simgear/compiler.h>
30 #include <simgear/structure/subsystem_mgr.hxx>
31 #include <simgear/props/props.hxx>
32 #include <simgear/props/tiedpropertylist.hxx>
33 #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 ();
56 virtual void shutdown();
59 inline int size() const { return views.size(); }
60 inline int get_current() const { return current; }
62 FGViewer *get_current_view();
63 const FGViewer *get_current_view() const;
65 FGViewer *get_view( int i );
66 const FGViewer *get_view( int i ) const;
68 FGViewer *next_view();
69 FGViewer *prev_view();
74 void add_view( FGViewer * v );
79 simgear::TiedPropertyList _tiedProperties;
86 // callbacks in manager to access viewer methods
87 double getViewHeadingOffset_deg () const;
88 void setViewHeadingOffset_deg (double offset);
89 double getViewGoalHeadingOffset_deg () const;
90 void setViewGoalHeadingOffset_deg (double offset);
91 double getViewPitchOffset_deg () const;
92 void setViewPitchOffset_deg (double tilt);
93 double getGoalViewPitchOffset_deg () const;
94 void setGoalViewRollOffset_deg (double tilt);
95 double getViewRollOffset_deg () const;
96 void setViewRollOffset_deg (double tilt);
97 double getGoalViewRollOffset_deg () const;
98 void setGoalViewPitchOffset_deg (double tilt);
99 double getViewXOffset_m () const;
100 void setViewXOffset_m (double x);
101 double getViewYOffset_m () const;
102 void setViewYOffset_m (double y);
103 double getViewZOffset_m () const;
104 void setViewZOffset_m (double z);
105 double getViewTargetXOffset_m () const;
106 void setViewTargetXOffset_m (double x);
107 double getViewTargetYOffset_m () const;
108 void setViewTargetYOffset_m (double y);
109 double getViewTargetZOffset_m () const;
110 void setViewTargetZOffset_m (double z);
111 double getFOV_deg () const;
112 void setFOV_deg (double fov);
113 double getARM_deg () const; // Aspect Ratio Multiplier
114 void setARM_deg (double fov);
115 double getNear_m () const;
116 void setNear_m (double near_m);
117 void setViewAxisLong (double axis);
118 void setViewAxisLat (double axis);
119 int getView () const;
120 void setView (int newview);
122 double getViewLon_deg() const;
123 double getViewLat_deg() const;
124 double getViewElev_ft() const;
126 // quaternion accessors, for debugging:
127 double getCurrentViewOrientation_w() const;
128 double getCurrentViewOrientation_x() const;
129 double getCurrentViewOrientation_y() const;
130 double getCurrentViewOrientation_z() const;
131 double getCurrentViewOrOffset_w() const;
132 double getCurrentViewOrOffset_x() const;
133 double getCurrentViewOrOffset_y() const;
134 double getCurrentViewOrOffset_z() const;
135 double getCurrentViewFrame_w() const;
136 double getCurrentViewFrame_x() const;
137 double getCurrentViewFrame_y() const;
138 double getCurrentViewFrame_z() const;
140 // copies current offset settings to current-view path...
141 void copyToCurrent ();
144 SGPropertyNode_ptr view_number;
145 std::vector<SGPropertyNode_ptr> config_list;
146 typedef std::vector<FGViewerPtr> viewer_list;
148 SGVec3d abs_viewer_position;
151 SGQuatd current_view_orientation, current_view_or_offset;
153 SGPropertyNode_ptr current_x_offs, current_y_offs, current_z_offs;
154 SGPropertyNode_ptr target_x_offs, target_y_offs, target_z_offs;
157 // This takes the conventional aviation XYZ body system
158 // i.e. x=forward, y=starboard, z=bottom
159 // which is widely used in FGFS
160 // and rotates it into the OpenGL camera system
161 // i.e. Xprime=starboard, Yprime=top, Zprime=aft.
162 inline const SGQuatd fsb2sta()
164 return SGQuatd(-0.5, -0.5, 0.5, 0.5);
167 #endif // _VIEWMGR_HXX