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To create an organization attribute class
.cxx implementation file:
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1.
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Copy the
at_tsl.cxx file from the
ACIS installation directory and rename it
at_abc.cxx. (If you do not have the source file, enter the content from this example into a file.)
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2.
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Change the bold sentinels as was done for the
at_abc.hxx header file.
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3.
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Enter statements to include the header files necessary to define the attribute.
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Note
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File kernel/acis.hxx should always be the first header file included in every ACIS application .cxx implementation file.
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Example 3-3 of the attribute implementation file shows the sentinels that are to be replaced in
bold font. In the new file, the new sentinel is shown inbold italic font.
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C++ Example
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#include <stdio.h>
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#include "kernel/acis.hxx"
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#include "kernel/dcl_kern.h"
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#include "kernel/kerndata/attrib/at_tsl.hxx"
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#include "kernel/kerndata/data/datamsc.hxx"
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// Define macros for this attribute and its parent, to provide
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// the information to the definition macro.
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#define THIS() ATTRIB_TSL
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#define THIS_LIB KERN
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#define PARENT() ATTRIB
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#define PARENT_LIB KERN
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// Identifier used externally to identify a particular entity
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// type. This is only used within the save/restore system for
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// translating to/from external file format, but must be unique
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// amongst attributes derived directly from ATTRIB, across all
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// application developers.
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#define ATTRIB_TSL_NAME "tsl"
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MASTER_ATTRIB_DEFN( "tsl master attribute" )
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Example 3-3. Original at_tsl.cxx
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The macro
MASTER_ATTRIB_DEFN generates all the code necessary to define the organization attribute class. The character string is the value returned by the
type_name method. After customizing
.at_tsl.cxx into
.at_abc.cxx, the organization class file should appear similar to Example 3-4.
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C++ Example
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#include <stdio.h>
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#include "kernel/acis.hxx"
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#include "kernel/dcl_kern.h"
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#include "kernel/kerndata/data/datamsc.hxx"
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#include "at_abc.hxx"
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// Define macros for this attribute and its parent, to provide
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// the information to the definition macro.
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#define THIS() ATTRIB_ABC
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#define THIS_LIB NONE
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#define PARENT() ATTRIB
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#define PARENT_LIB KERN
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// Identifier used externally to identify a particular entity
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// type. This is only used within the save/restore system for
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// translating to/from external file format, but must be unique
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// amongst attributes derived directly from ATTRIB, across all
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// application developers.
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#define ATTRIB_ABC_NAME "abc"
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MASTER_ATTRIB_DEFN( "abc master attribute" )
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Example 3-4. Customized at_abc.cxx
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