Application: gvSIG desktop

package org.gvsig.crs.proj;

public class JNIBaseCrs

{

        protected long cPtr;

        protected int latLong;

        protected String _strCrs;

        protected native long loadCrs(String crs);

        protected native void freeCrs(long crs);

        protected native int isLatlong(long crs);

        protected native int compareDatums(long datum1, long datum2);

        protected native int getErrno();

        protected native String strErrno(int errno);

        static {

                System.loadLibrary("crsjniproj");

        }

        protected void createCrs(String strCrs) throws CrsProjException {

                cPtr=loadCrs(strCrs);

                int errNo = getErrNo(); 

                if (errNo<0) throw new CrsProjException("Error creating CRS: "+strErrNo(errNo));

                _strCrs=strCrs;

        }

        protected void deleteCrs() {

                if(cPtr>0) freeCrs(cPtr); 

        }

        public boolean isLatlong() {

                latLong = isLatlong(cPtr);

                if(latLong == 0)

                        return false;

                return true;

        }

        protected long getPtr() throws CrsProjException {

                if (cPtr>0)        return cPtr;

                else throw new CrsProjException(_strCrs);

        }

        public String getStr() {

                return _strCrs;

        }

        public void changeStrCrs(String code) {

                _strCrs += code;

        }

        protected int getErrNo(){

                return getErrno();

        }

        protected String strErrNo(int errno){

                return strErrno(errno);

        }

}