state.h
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- /*
- * Copyright (c) 1991,1993 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the Computer Systems
- * Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#) $Header: /cvsroot/nsnam/nam-1/state.h,v 1.1.1.1 1997/06/16 22:40:29 mjh Exp $ (LBL)
- */
- #ifndef nam_state_h
- #define nam_state_h
- struct StateInfo {
- double time; // time animated object was created
- long offset; // trace file offset (point when object
- // was created)
- };
- struct StateItem {
- double time; // time user wants to rewind to
- StateInfo si; // contains earliest time (and corresponding
- // file offset) needed to correctly
- // restore animation state to time 'time'
- };
- class State {
- protected:
- State(int);
- public:
- static void init(int);
- static inline State* instance() { return (instance_); }
- void get(double, StateInfo&);
- void set(double, StateInfo&);
- void setTimes(double, double);
- double next();
- private:
- int cnt_;
- int size_;
- static State* instance_;
- StateItem *states;
- };
- #endif