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#if !defined( TIMEFRAME_INCLUDED ) /* Include this file only once */
#define TIMEFRAME_INCLUDED
/*
*+
* Name:
* timeframe.h
* Type:
* C include file.
* Purpose:
* Define the interface to the TimeFrame class.
* Invocation:
* #include "timeframe.h"
* Description:
* This include file defines the interface to the TimeFrame class
* and provides the type definitions, function prototypes and
* macros, etc. needed to use this class.
* Copyright:
* Copyright (C) 1997-2006 Council for the Central Laboratory of the
* Research Councils
* Licence:
* This program is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either
* version 3 of the License, or (at your option) any later
* version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
* Authors:
* DSB: David S. Berry (Starlink)
* History:
* 20-MAY-2005 (DSB):
* Original version.
*-
*/
/* Include files. */
/* ============== */
/* Interface definitions. */
/* ---------------------- */
#include "object.h" /* Base Object class */
#include "frame.h" /* Parent Frame class */
#include "skyframe.h" /* Celestial coordinate systems */
/* Macros. */
/* ======= */
#if defined(astCLASS) || defined(astFORTRAN77)
#define STATUS_PTR status
#else
#define STATUS_PTR astGetStatusPtr
#endif
/* Define a dummy __attribute__ macro for use on non-GNU compilers. */
#ifndef __GNUC__
# define __attribute__(x) /*NOTHING*/
#endif
/* Values used to represent different System attribute values. */
#define AST__MJD 1
#define AST__JD 2
#define AST__JEPOCH 3
#define AST__BEPOCH 4
/* Values used to represent different TimeScale attribute values. */
#define AST__BADTS 0
#define AST__TAI 1
#define AST__UTC 2
#define AST__UT1 3
#define AST__GMST 4
#define AST__LAST 5
#define AST__LMST 6
#define AST__TT 7
#define AST__TDB 8
#define AST__TCB 9
#define AST__TCG 10
#define AST__LT 11
#if defined(astCLASS) /* Protected */
/* Define constants used to size global arrays in this module. */
#define AST__TIMEFRAME_FORMAT_BUFF_LEN 200
#define AST__TIMEFRAME_GETATTRIB_BUFF_LEN 50
#define AST__TIMEFRAME_GETLABEL_BUFF_LEN 200
#define AST__TIMEFRAME_GETSYMBOL_BUFF_LEN 20
#define AST__TIMEFRAME_GETTITLE_BUFF_LEN 200
#endif
/* Type Definitions. */
/* ================= */
/* Integer type used to store the TimeScale attribute. */
typedef int AstTimeScaleType;
/* TimeFrame structure. */
/* ------------------- */
/* This structure contains all information that is unique to each object in
the class (e.g. its instance variables). */
typedef struct AstTimeFrame {
/* Attributes inherited from the parent class. */
AstFrame frame; /* Parent class structure */
/* Attributes specific to objects in this class. */
double ltoffset; /* Offset from UTC to Local Time */
double timeorigin; /* Zero point for time axis */
AstTimeScaleType timescale; /* Time scale */
AstTimeScaleType aligntimescale; /* Alignment time scale */
} AstTimeFrame;
/* Virtual function table. */
/* ----------------------- */
/* This table contains all information that is the same for all objects in the
class (e.g. pointers to its virtual functions). */
#if defined(astCLASS) /* Protected */
typedef struct AstTimeFrameVtab {
/* Properties (e.g. methods) inherited from the parent class. */
AstFrameVtab frame_vtab; /* Parent class virtual function table */
/* A Unique identifier to determine class membership. */
AstClassIdentifier id;
/* Properties (e.g. methods) specific to this class. */
double (* CurrentTime)( AstTimeFrame *, int * );
double (* GetLTOffset)( AstTimeFrame *, int * );
int (* TestLTOffset)( AstTimeFrame *, int * );
void (* ClearLTOffset)( AstTimeFrame *, int * );
void (* SetLTOffset)( AstTimeFrame *, double, int * );
double (* GetTimeOrigin)( AstTimeFrame *, int * );
int (* TestTimeOrigin)( AstTimeFrame *, int * );
void (* ClearTimeOrigin)( AstTimeFrame *, int * );
void (* SetTimeOrigin)( AstTimeFrame *, double, int * );
AstTimeScaleType (* GetTimeScale)( AstTimeFrame *, int * );
int (* TestTimeScale)( AstTimeFrame *, int * );
void (* ClearTimeScale)( AstTimeFrame *, int * );
void (* SetTimeScale)( AstTimeFrame *, AstTimeScaleType, int * );
AstTimeScaleType (* GetAlignTimeScale)( AstTimeFrame *, int * );
int (* TestAlignTimeScale)( AstTimeFrame *, int * );
void (* ClearAlignTimeScale)( AstTimeFrame *, int * );
void (* SetAlignTimeScale)( AstTimeFrame *, AstTimeScaleType, int * );
} AstTimeFrameVtab;
#if defined(THREAD_SAFE)
/* Define a structure holding all data items that are global within this
class. */
typedef struct AstTimeFrameGlobals {
AstTimeFrameVtab Class_Vtab;
int Class_Init;
char Format_Buff[ AST__TIMEFRAME_FORMAT_BUFF_LEN + 1 ];
char GetAttrib_Buff[ AST__TIMEFRAME_GETATTRIB_BUFF_LEN + 1 ];
char GetLabel_Buff[ AST__TIMEFRAME_GETLABEL_BUFF_LEN + 1 ];
char GetSymbol_Buff[ AST__TIMEFRAME_GETSYMBOL_BUFF_LEN + 1 ];
char GetTitle_Buff[ AST__TIMEFRAME_GETTITLE_BUFF_LEN + 1 ];
} AstTimeFrameGlobals;
#endif
#endif
/* Function prototypes. */
/* ==================== */
/* Prototypes for standard class functions. */
/* ---------------------------------------- */
astPROTO_CHECK(TimeFrame) /* Check class membership */
astPROTO_ISA(TimeFrame) /* Test class membership */
/* Constructor. */
#if defined(astCLASS) /* Protected */
AstTimeFrame *astTimeFrame_( const char *, int *, ...);
#else
AstTimeFrame *astTimeFrameId_( const char *, ... )__attribute__((format(printf,1,2)));
#endif
#if defined(astCLASS) /* Protected */
/* Initialiser. */
AstTimeFrame *astInitTimeFrame_( void *, size_t, int, AstTimeFrameVtab *,
const char *, int * );
/* Vtab initialiser. */
void astInitTimeFrameVtab_( AstTimeFrameVtab *, const char *, int * );
/* Loader. */
AstTimeFrame *astLoadTimeFrame_( void *, size_t, AstTimeFrameVtab *,
const char *, AstChannel *channel, int * );
/* Thread-safe initialiser for all global data used by this module. */
#if defined(THREAD_SAFE)
void astInitTimeFrameGlobals_( AstTimeFrameGlobals * );
#endif
#endif
/* Prototypes for member functions. */
/* -------------------------------- */
double astCurrentTime_( AstTimeFrame *, int * );
#if defined(astCLASS) /* Protected */
double astGetLTOffset_( AstTimeFrame *, int * );
int astTestLTOffset_( AstTimeFrame *, int * );
void astClearLTOffset_( AstTimeFrame *, int * );
void astSetLTOffset_( AstTimeFrame *, double, int * );
double astGetTimeOrigin_( AstTimeFrame *, int * );
int astTestTimeOrigin_( AstTimeFrame *, int * );
void astClearTimeOrigin_( AstTimeFrame *, int * );
void astSetTimeOrigin_( AstTimeFrame *, double, int * );
AstTimeScaleType astGetTimeScale_( AstTimeFrame *, int * );
int astTestTimeScale_( AstTimeFrame *, int * );
void astClearTimeScale_( AstTimeFrame *, int * );
void astSetTimeScale_( AstTimeFrame *, AstTimeScaleType, int * );
AstTimeScaleType astGetAlignTimeScale_( AstTimeFrame *, int * );
int astTestAlignTimeScale_( AstTimeFrame *, int * );
void astClearAlignTimeScale_( AstTimeFrame *, int * );
void astSetAlignTimeScale_( AstTimeFrame *, AstTimeScaleType, int * );
#endif
/* Function interfaces. */
/* ==================== */
/* These macros are wrap-ups for the functions defined by this class
to make them easier to invoke (e.g. to avoid type mis-matches when
passing pointers to objects from derived classes). */
/* Interfaces to standard class functions. */
/* --------------------------------------- */
/* Some of these functions provide validation, so we cannot use them
to validate their own arguments. We must use a cast when passing
object pointers (so that they can accept objects from derived
classes). */
/* Check class membership. */
#define astCheckTimeFrame(this) astINVOKE_CHECK(TimeFrame,this,0)
#define astVerifyTimeFrame(this) astINVOKE_CHECK(TimeFrame,this,1)
/* Test class membership. */
#define astIsATimeFrame(this) astINVOKE_ISA(TimeFrame,this)
/* Constructor. */
#if defined(astCLASS) /* Protected */
#define astTimeFrame astINVOKE(F,astTimeFrame_)
#else
#define astTimeFrame astINVOKE(F,astTimeFrameId_)
#endif
#if defined(astCLASS) /* Protected */
/* Initialiser. */
#define astInitTimeFrame(mem,size,init,vtab,name) \
astINVOKE(O,astInitTimeFrame_(mem,size,init,vtab,name,STATUS_PTR))
/* Vtab Initialiser. */
#define astInitTimeFrameVtab(vtab,name) astINVOKE(V,astInitTimeFrameVtab_(vtab,name,STATUS_PTR))
/* Loader. */
#define astLoadTimeFrame(mem,size,vtab,name,channel) \
astINVOKE(O,astLoadTimeFrame_(mem,size,vtab,name,astCheckChannel(channel),STATUS_PTR))
#endif
/* Interfaces to public member functions. */
/* -------------------------------------- */
/* None. */
/* Interfaces to protected member functions. */
/* ----------------------------------------- */
/* Here we make use of astCheckTimeFrame to validate TimeFrame pointers
before use. This provides a contextual error report if a pointer to
the wrong sort of object is supplied. */
#define astCurrentTime(this) astINVOKE(V,astCurrentTime_(astCheckTimeFrame(this),STATUS_PTR))
#if defined(astCLASS) /* Protected */
#define astGetTimeOrigin(this) astINVOKE(V,astGetTimeOrigin_(astCheckTimeFrame(this),STATUS_PTR))
#define astTestTimeOrigin(this) astINVOKE(V,astTestTimeOrigin_(astCheckTimeFrame(this),STATUS_PTR))
#define astClearTimeOrigin(this) astINVOKE(V,astClearTimeOrigin_(astCheckTimeFrame(this),STATUS_PTR))
#define astSetTimeOrigin(this,value) astINVOKE(V,astSetTimeOrigin_(astCheckTimeFrame(this),value,STATUS_PTR))
#define astGetLTOffset(this) astINVOKE(V,astGetLTOffset_(astCheckTimeFrame(this),STATUS_PTR))
#define astTestLTOffset(this) astINVOKE(V,astTestLTOffset_(astCheckTimeFrame(this),STATUS_PTR))
#define astClearLTOffset(this) astINVOKE(V,astClearLTOffset_(astCheckTimeFrame(this),STATUS_PTR))
#define astSetLTOffset(this,value) astINVOKE(V,astSetLTOffset_(astCheckTimeFrame(this),value,STATUS_PTR))
#define astGetTimeScale(this) astINVOKE(V,astGetTimeScale_(astCheckTimeFrame(this),STATUS_PTR))
#define astTestTimeScale(this) astINVOKE(V,astTestTimeScale_(astCheckTimeFrame(this),STATUS_PTR))
#define astClearTimeScale(this) astINVOKE(V,astClearTimeScale_(astCheckTimeFrame(this),STATUS_PTR))
#define astSetTimeScale(this,value) astINVOKE(V,astSetTimeScale_(astCheckTimeFrame(this),value,STATUS_PTR))
#define astGetAlignTimeScale(this) astINVOKE(V,astGetAlignTimeScale_(astCheckTimeFrame(this),STATUS_PTR))
#define astTestAlignTimeScale(this) astINVOKE(V,astTestAlignTimeScale_(astCheckTimeFrame(this),STATUS_PTR))
#define astClearAlignTimeScale(this) astINVOKE(V,astClearAlignTimeScale_(astCheckTimeFrame(this),STATUS_PTR))
#define astSetAlignTimeScale(this,value) astINVOKE(V,astSetAlignTimeScale_(astCheckTimeFrame(this),value,STATUS_PTR))
#endif
#endif
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