dyndata.cpp

Example which shows how to use dynamic data. The source code can also be found in the examples directory of the GizmoBase distribution.

// *****************************************************************************
// File         : dyndata.cpp
// Module       : 
// Description  : Example of dynamic data in GizmoBase
// Author       : Anders Modén      
// Product      : GizmoBase 2.1.1
//      
// Copyright © 1998 Anders Modén , Sweden       
//          
// NOTE:    The GIZMO package defines a general purpose API for large model
//          visualisation and advanced graphic behaviours. The package is similar
//          to Cosmo3D, Inventor, Performer etc. but adds automated behaviour
//          patterns to the graphics. 
//
//
// Revision History...                          
//                                  
// Who  Date    Description                     
//                                  
// AMO  040209  Created file    
//
// ******************************************************************************

#include "gzBaseLibrary.h"


class MyDynamicData : public gzSerializeData
{
public:

    // The data, One wide string and one number

    gzSerializeStringWide               string;

    gzSerializeBinary<gzDouble>         number;


    // The serializing methods (Format)

    gzVoid write(gzSerializeAdapter *adapter)   // Provide this method to write the data in the correct order
    {
        string.write(adapter);                  // Format defined as a string first and then a number
        number.write(adapter);
    }

    gzVoid read(gzSerializeAdapter *adapter)    // Provide this method to read the data in the correct order
    {
        string.read(adapter);
        number.read(adapter);
    }

    gzVoid pushBack(gzSerializeAdapter *adapter) // Provide this method to pushback the data in the correct order
    {
        number.pushBack(adapter);               // Note that this is done in the reversed order !!!
        string.pushBack(adapter);
    }

    gzULong getDataSize(gzSerializeAdapter *adapter=NULL) const // Provide this method to get the correct size of the stored data (in bytes)
    {
        return string.getDataSize(adapter)+number.getDataSize(adapter);
    }


    // The type definition (either const char * or gzString)

    static const char * getDataTag()        // The custom class will be identified by this tag "MyData"
    {
        return "MyData";
    }

};

int main(int argc , char *argv[] )
{
    try
    {
        gzMessage::setMessageLevel(GZ_MESSAGE_DEBUG);


        // Create the data structure

        MyDynamicData data;

        // set some values

        data.string=L"Nisse Hült sĺg en CAN buss";
        data.number=667;


        gzDynamicTypeContainer container;       // Can contain any data

        container.setAttribute("testdata",gzDynamicTypeCustom<MyDynamicData>(data));    // Set the attribute "testdata"


        // and do some stuff etc...



        MyDynamicData data2;

        data2=gzDynamic_Cast<MyDynamicData>(container.getAttribute("testdata"));

        // Check some data

        GZTRACE("String is %s",(const char *)(const gzString &)data2.string);

        GZTRACE("Number is %d",(gzDouble)data2.number);


        // Some other checks

        gzDynamicType rawdata=container.getAttribute("testdata");

        GZTRACE("Type is %s",(const char *)rawdata.getDynamicType());


    }
    catch(gzBaseError &error)   // In case of exceptions thrown we want to print the message
    {
        error.reportError();
    }

    return 0;
}

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