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., 675 Mass Ave, Cambridge, MA 02139, USA.
29 # error This library requires C++
33 #include <simgear/compiler.h>
34 #include <simgear/structure/subsystem_mgr.hxx>
47 // Define a structure containing view information
48 class FGViewMgr : public SGSubsystem
61 virtual void unbind ();
62 virtual void update (double dt);
63 virtual void reinit ();
66 inline int size() const { return views.size(); }
67 inline int get_current() const { return current; }
68 inline FGViewer *get_current_view() {
69 if ( current < (int)views.size() ) {
70 return views[current];
75 inline const FGViewer *get_current_view() const {
76 if ( current < (int)views.size() ) {
77 return views[current];
82 inline FGViewer *get_view( int i ) {
83 if ( i < 0 ) { i = 0; }
84 if ( i >= (int)views.size() ) { i = views.size() - 1; }
87 inline const FGViewer *get_view( int i ) const {
88 if ( i < 0 ) { i = 0; }
89 if ( i >= (int)views.size() ) { i = views.size() - 1; }
92 inline FGViewer *next_view() {
93 setView((current+1 < (int)views.size()) ? (current + 1) : 0);
94 return views[current];
96 inline FGViewer *prev_view() {
97 setView((0 < current) ? (current - 1) : (views.size() - 1));
98 return views[current];
102 inline void clear() { views.clear(); }
103 inline void set_view( const int v ) { current = v; }
104 inline void add_view( FGViewer * v ) {
108 // copies current offset settings to current-view path...
109 void copyToCurrent ();
118 // callbacks in manager to access viewer methods
119 double getViewHeadingOffset_deg () const;
120 void setViewHeadingOffset_deg (double offset);
121 double getViewGoalHeadingOffset_deg () const;
122 void setViewGoalHeadingOffset_deg (double offset);
123 double getViewPitchOffset_deg () const;
124 void setViewPitchOffset_deg (double tilt);
125 double getGoalViewPitchOffset_deg () const;
126 void setGoalViewRollOffset_deg (double tilt);
127 double getViewRollOffset_deg () const;
128 void setViewRollOffset_deg (double tilt);
129 double getGoalViewRollOffset_deg () const;
130 void setGoalViewPitchOffset_deg (double tilt);
131 double getViewXOffset_m () const;
132 void setViewXOffset_m (double x);
133 double getViewYOffset_m () const;
134 void setViewYOffset_m (double y);
135 double getViewZOffset_m () const;
136 void setViewZOffset_m (double z);
137 double getViewTargetXOffset_m () const;
138 void setViewTargetXOffset_m (double x);
139 double getViewTargetYOffset_m () const;
140 void setViewTargetYOffset_m (double y);
141 double getViewTargetZOffset_m () const;
142 void setViewTargetZOffset_m (double z);
143 double getFOV_deg () const;
144 void setFOV_deg (double fov);
145 double getARM_deg () const; // Aspect Ratio Multiplier
146 void setARM_deg (double fov);
147 double getNear_m () const;
148 void setNear_m (double near_m);
149 void setViewAxisLong (double axis);
150 void setViewAxisLat (double axis);
151 int getView () const;
152 void setView (int newview);
154 typedef vector < FGViewer * > viewer_list;
162 #endif // _VIEWMGR_HXX