104 lines
2.4 KiB
C++
104 lines
2.4 KiB
C++
// viewmgr.hxx -- class for managing all the views in the flightgear world.
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//
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// Written by Curtis Olson, started October 2000.
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//
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// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#ifndef _VIEWMGR_HXX
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#define _VIEWMGR_HXX
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#ifndef __cplusplus
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# error This library requires C++
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#endif
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#include <simgear/compiler.h>
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <vector>
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#include "viewer_lookat.hxx"
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#include "viewer_rph.hxx"
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FG_USING_STD(vector);
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// Define a structure containing view information
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class FGViewMgr {
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private:
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typedef vector < FGViewer * > viewer_list;
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viewer_list views;
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int current;
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public:
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// Constructor
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FGViewMgr( void );
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// Destructor
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~FGViewMgr( void );
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// getters
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inline int size() const { return views.size(); }
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inline int get_current() const { return current; }
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inline FGViewer *get_current_view() {
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if ( current < (int)views.size() ) {
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return views[current];
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} else {
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return NULL;
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}
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}
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inline FGViewer *get_view( int i ) {
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if ( i < 0 ) { i = 0; }
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if ( i >= (int)views.size() ) { i = views.size() - 1; }
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return views[i];
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}
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inline FGViewer *next_view() {
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++current;
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if ( current >= (int)views.size() ) {
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current = 0;
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}
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return views[current];
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}
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inline FGViewer *prev_view() {
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--current;
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if ( current < 0 ) {
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current = views.size() - 1;
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}
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return views[current];
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}
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// setters
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inline void clear() { views.clear(); }
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inline void set_view( const int v ) { current = v; }
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inline void add_view( FGViewer * v ) {
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views.push_back(v);
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}
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};
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#endif // _VIEWMGR_HXX
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