# ----------------------------------------------------------------------
#  LANGUAGE:  C Language API
# ======================================================================
#  AUTHOR:  Michael McLennan, Purdue University
#  Copyright (c) 2004-2012  HUBzero Foundation, LLC
#
#  See the file "license.terms" for information on usage and
#  redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
# ======================================================================
language "C Language" {
  extension ".c"

  # use the convention with "c" on the end of the program name
  # so we can tell that this is a C language program, not fortran
  command {@tool/@@FILEROOT@@c @driver}

  main {/*
 * ----------------------------------------------------------------------
 *  MAIN PROGRAM - generated by the Rappture Builder
 * ----------------------------------------------------------------------
 */
#include "rappture.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <unistd.h>

int main(int argc, char * argv[]) {
    /* stuff needed for Rappture library */
    RpLibrary* io;
    const char* data; char line[255];
    int err;

    @@DECLARATIONS@@

    /* open the XML file containing the run parameters */
    io = rpLibrary(argv[1]);

    if (io == NULL) {
        /* cannot open file or out of memory */
        printf("FAILED loading Rappture data\n");
        exit(1);
    }

    /*
     *********************************************************
     * Get input values from Rappture
     *********************************************************
     */
    @@INPUTS@@

    /*
     *********************************************************
     *  Add your code here for the main body of your program
     *********************************************************
     */

    /* spit out progress messages as you go along... */
    rpUtilsProgress(0, "Starting...");
    rpUtilsProgress(5, "Loading data...");
    rpUtilsProgress(50, "Half-way there");
    rpUtilsProgress(100, "Done");

    /*
     *********************************************************
     * Save output values back to Rappture
     *********************************************************
     */
    @@OUTPUTS@@

    rpResult(io);
    exit(0);
}}

  input boolean {
    decl "int $id;  /* for $path */"
    code "\n/* get input value for $path */"
    code "rpGetString(io,\"$path.current\", &data);"
    code "$id = (strcmp(data,\"yes\") == 0);"
  }
  input image {
    code "\n/* get input value for $path */"
    code "/* returns base64-encoded image data */"
    code "rpGetString(io,\"$path.current\", &data);"
  }
  input integer {
    decl "int $id;  /* for $path */"
    code "\n/* get input value for $path */"
    code "rpGetString(io,\"$path.current\", &data);"
    code "$id = atoi(data);"
  }
  input number {
    set units [attr get units]
    if {$units ne ""} {
      decl "double $id;  /* for $path */"
      code "\n/* get input value for $path and convert to $units */"
      code "rpGetString(io,\"$path.current\", &data);"
      code "$id = rpConvertDbl(data, \"$units\", &err);"
      code "if (err) {"
      code "    printf(\"Error while retrieving $path.current\n\");"
      code "    exit(1);"
      code "}"
    } else {
      decl "double $id;  /* for $path */"
      code "\n/* get input value for $path */"
      code "rpGetString(io,\"$path.current\", &data);"
      code "$id = atof(data);"
    }
  }
  input string {
    decl "const char* $id;  /* for $path */"
    code "\n/* get input value for $path */"
    code "rpGetString(io,\"$path.current\", &$id);"
  }
  input * {
    code "\n/* get input value for $path */"
    code "rpGetString(io,\"$path.current\", &data);"
  }

  output boolean {
    decl "int $id;  /* for $path */"
    code "\n/* save output value for $path */"
    code "rpPutString(io, \"$path.current\", ($id) ? \"yes\" : \"no\");"
  }
  output curve {
    code "\n/* save output value for $path */"
    code "/* this shows just one (x,y) point -- modify as needed */"
    code "sprintf(line, \"%g %g\\n\", x, y);"
    code "rpPutString(io,\"$path.component.xy\", line, RPLIB_APPEND);"
  }
  output histogram {
    code "\n/* save output value for $path */"
    code "/* this shows just one point -- modify as needed */"
    code "/* (x,h,w) = x-coord, height of bar, and width of bar (optional) */"
    code "sprintf(line, \"%g %g %g\\n\", x, h, w);"
    code "rpPutString(io,\"$path.component.xhw\", line, RPLIB_APPEND);"
  }
  output image {
    code "\n/* save output value for $path */"
    code "/* data should be base64-encoded image data */"
    code "rpPutString(io, \"$path.current\", imdata, RPLIB_OVERWRITE);"
  }
  output integer {
    decl "int $id;  /* for $path */"
    code "\n/* save output value for $path */"
    code "sprintf(line, \"%d\\n\", $id);"
    code "rpPutString(io, \"$path.current\", line, RPLIB_OVERWRITE);"
  }
  output number {
    decl "double $id;  /* for $path */"
    code "\n/* save output value for $path */"
    code "sprintf(line, \"%g\\n\", $id);"
    code "rpPutString(io, \"$path.current\", line, RPLIB_OVERWRITE);"
  }
  output string {
    decl "char $id\[1024\];  /* for $path */"
    code "\n/* save output value for $path */"
    code "rpPutString(io, \"$path.current\", $id, RPLIB_OVERWRITE);"
  }
  output * {
    code "\n/* save output value for $path */"
    code "rpPutString(io, \"$path.current\", $id, RPLIB_OVERWRITE);"
  }

  makefile {# simple makefile for a Rappture-based program

CC		= gcc
CFLAGS		= -g -Wall

RAPPTURE_DIR	= @@RAPPTUREDIR@@
INCLUDES	= -I$(RAPPTURE_DIR)/include
LIBS		= -L$(RAPPTURE_DIR)/lib -lrappture -lm


all: @@FILEROOT@@c

@@FILEROOT@@c: @@FILENAME@@
	$(CC) $(CFLAGS) $(INCLUDES) $< -o $@ $(LIBS)

install:

clean:
	$(RM) @@FILEROOT@@c run*.xml
}
}