ProDeBusEditPolicy.cc

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file ProDeBusEditPolicy.cc
 *
 * Definition of ProDeBusEditPolicy class.
 *
 * @author Ari Metsähalme 2003 (ari.metsahalme-no.spam-tut.fi)
 * @note rating: yellow
 * @note reviewed Jul 20 2004 by vpj, jn, am
 */
 
#include <string>
#include <boost/format.hpp>
 
#include "ProDeBusEditPolicy.hh"
#include "Request.hh"
#include "ComponentCommand.hh"
#include "SetStatusTextCmd.hh"
#include "ModifyBusCmd.hh"
#include "DeleteBusCmd.hh"
#include "CopyComponent.hh"
#include "EditPart.hh"
#include "MachinePart.hh"
#include "Bus.hh"
#include "ProDeTextGenerator.hh"
#include "Conversion.hh"
 
using boost::format;
using std::string;
using namespace TTAMachine;
 
/**
 * The Constructor.
 */
ProDeBusEditPolicy::ProDeBusEditPolicy(): EditPolicy() {
}
 
/**
 * The Destructor.
 */
ProDeBusEditPolicy::~ProDeBusEditPolicy() {
}
 
/**
 * Returns the Command corresponding to the type of the Request.
 *
 * @param request Request to be handled.
 * @return NULL if the Request cannot be handled.
 */
ComponentCommand*
ProDeBusEditPolicy::getCommand(Request* request) {
 
    Request::RequestType type = request->type();
 
    if (type == Request::MODIFY_REQUEST) {
        ModifyBusCmd* modifyCmd = new ModifyBusCmd(host_);
        return modifyCmd;
 
    } else if (type == Request::DELETE_REQUEST) {
        DeleteBusCmd* deleteCmd = new DeleteBusCmd(host_);
        return deleteCmd;
 
    } else if (type == Request::COPY_REQUEST) {
        CopyComponent* copyCmd = new CopyComponent(host_);
        return copyCmd;
 
    } else if (type == Request::STATUS_REQUEST) {
        Bus* bus = dynamic_cast<Bus*>(host_->model());
        ProDeTextGenerator* generator = ProDeTextGenerator::instance();
        format fmt = generator->text(ProDeTextGenerator::STATUS_BUS);
        string extension = "";
        if (bus->signExtends()) {
            extension = generator->text(
                ProDeTextGenerator::TXT_RADIO_EXTENSION_SIGN).str();
        } else {
            extension = generator->text(
                ProDeTextGenerator::TXT_RADIO_EXTENSION_ZERO).str();
        }
        fmt % bus->name() % Conversion::toString(bus->width()) %
            Conversion::toString(bus->immediateWidth()) %
            extension;
        SetStatusTextCmd* statusCmd = new SetStatusTextCmd(fmt.str());
        return statusCmd;
 
    } else {
        return NULL;
    }
}
 
/**
 * Tells whether this EditPolicy is able to handle a certain type
 * of Request.
 *
 * @param request Request to be asked if it can be handled.
 * @return True if the Request can be handled, false otherwise.
 */
bool
ProDeBusEditPolicy::canHandle(Request* request) const {
    Request::RequestType type = request->type();
    if (type == Request::MODIFY_REQUEST ||
        type == Request::DELETE_REQUEST ||
        type == Request::COPY_REQUEST ||
        type == Request::STATUS_REQUEST) {
        return true;
    } else {
        return false;
    }
}