MemoryOperator.java

// Copyright 2001-2004, FreeHEP.
package org.freehep.postscript;

/**
 * Vritual Memory Operators for PostScript Processor
 *
 * @author Mark Donszelmann
 * @version $Id: MemoryOperator.java 8958 2006-09-12 23:37:43Z duns $
 */
public class MemoryOperator extends PSOperator {
        
    public static Class[] operators = {
        Save.class, Restore.class, SetGlobal.class, CurrentGlobal.class,
        GCheck.class, StartJob.class, 
        DefineUserObject.class, ExecUserObject.class, 
        UndefineUserObject.class, UserObjects.class
    };

    public boolean execute(OperandStack os) {
        throw new RuntimeException("Cannot execute class: "+getClass());
    }
}

class Save extends MemoryOperator {

    public boolean execute(OperandStack os) {
        // FREEHEP-152: ignored
        os.push(new PSSave());
        return true;
    }
}

class Restore extends MemoryOperator {
    { operandTypes = new Class[] {PSSave.class}; }

    public boolean execute(OperandStack os) {
        // FREEHEP-152: ignored
        os.popSave();
        return true;
    }
}

class SetGlobal extends MemoryOperator {
    { operandTypes = new Class[] {PSBoolean.class}; }

    public boolean execute(OperandStack os) {
        // FIXME
        error(os, new Unimplemented());
        return true;
    }
}

class CurrentGlobal extends MemoryOperator {

    public boolean execute(OperandStack os) {
        // FIXME
        error(os, new Unimplemented());
        return true;
    }
}

class GCheck extends MemoryOperator {
    { operandTypes = new Class[] {PSObject.class}; }

    public boolean execute(OperandStack os) {
        // FREEHEP-152
        error(os, new Unimplemented());
        return true;
    }
}

class StartJob extends MemoryOperator {
    { operandTypes = new Class[] {PSBoolean.class, PSString.class}; }

    public boolean execute(OperandStack os) {
        // ignored
        PSString password = os.popString();
        PSBoolean state = os.popBoolean();
        os.push(false);
        return true;
    }
}

class DefineUserObject extends MemoryOperator {
    { operandTypes = new Class[] {PSInteger.class, PSObject.class}; }

    public boolean execute(OperandStack os) {
        // FREEHEP-153
        error(os, new Unimplemented());
        return true;
    }
}

class ExecUserObject extends MemoryOperator {
    { operandTypes = new Class[] {PSInteger.class}; }

    public boolean execute(OperandStack os) {
        // FREEHEP-153
        error(os, new Unimplemented());
        return true;
    }
}

class UndefineUserObject extends MemoryOperator {
    { operandTypes = new Class[] {PSInteger.class}; }

    public boolean execute(OperandStack os) {
        // FREEHEP-153
        error(os, new Unimplemented());
        return true;
    }
}

class UserObjects extends MemoryOperator {
    // FREEHEP-153: not an operator

    public String getName() {
        return "UserObjects";
    }

    public boolean execute(OperandStack os) {
        // FREEHEP-153
        error(os, new Unimplemented());
        return true;
    }
}