AddBridgeCmd.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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    copy of this software and associated documentation files (the "Software"),
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    Software is furnished to do so, subject to the following conditions:
 
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    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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/**
 * @file AddBridgeCmd.cc
 *
 * Definition of AddBridgeCmd class.
 *
 * @author Veli-Pekka Jääskeläinen 2004 (vjaaskel-no.spam-cs.tut.fi)
 * @note rating: red
 * @note reviewed Jun 23 2004 by ml, jn, jm, vpj
 */
 
#include <wx/wx.h>
#include <wx/docview.h>
#include <boost/format.hpp>
 
#include "AddBridgeCmd.hh"
#include "BridgeDialog.hh"
#include "Machine.hh"
#include "Model.hh"
#include "Conversion.hh"
#include "MDFDocument.hh"
#include "ProDeConstants.hh"
#include "InformationDialog.hh"
#include "Bus.hh"
#include "Bridge.hh"
#include "Segment.hh"
#include "ProDe.hh"
#include "MainFrame.hh"
#include "MachineTester.hh"
#include "ProDeTextGenerator.hh"
#include "WxConversion.hh"
 
using std::string;
using namespace TTAMachine;
 
/**
 * The Constructor.
 */
AddBridgeCmd::AddBridgeCmd() :
    EditorCommand(ProDeConstants::CMD_NAME_ADD_BRIDGE) {
}
 
 
/**
 * The Destructor.
 */
AddBridgeCmd::~AddBridgeCmd() {
}
 
 
/**
 * Executes the command.
 *
 * @return true, if the command was succesfully executed, false otherwise.
 */
bool
AddBridgeCmd::Do() {
 
    assert(parentWindow() != NULL);
    assert(view() != NULL);
 
    Model* model =
        dynamic_cast<MDFDocument*>(view()->GetDocument())->getModel();
    Machine* machine = model->getMachine();
 
    Machine::BusNavigator navigator = machine->busNavigator();
 
    Bus* source = NULL;
    Bus* destination = NULL;
    MachineTester tester(*machine);
 
    // Check that two buses in the machine can be bridged.
    int i = 0;
    while (i < navigator.count() && source == NULL) {
    for (int j = 0; j < navigator.count(); j++) {
        if (tester.canBridge(*navigator.item(i), *navigator.item(j))) {
                source = navigator.item(i);
                destination = navigator.item(j);
                break;
            }
        }
        i++;
    }
 
    if (source == NULL) {
        // It's not possible to create a legal bridge to the machine,
        // display an error message.
        ProDeTextGenerator* generator = ProDeTextGenerator::instance();
 
        boost::format message =
            generator->text(ProDeTextGenerator::MSG_ERROR_CANNOT_BRIDGE);
 
        InformationDialog info(parentWindow(),
                               WxConversion::toWxString(message.str()));
        info.ShowModal();
        return false;
    }
 
 
    // Generate name for the new FU.
    Machine::BridgeNavigator bridgeNavigator =
        model->getMachine()->bridgeNavigator();
    int suffix = 1;
    string newName = ProDeConstants::COMP_NEW_NAME_PREFIX_BRIDGE +
        Conversion::toString(suffix);
    while (bridgeNavigator.hasItem(newName)) {
        newName = ProDeConstants::COMP_NEW_NAME_PREFIX_BRIDGE +
            Conversion::toString(suffix);
        suffix++;
    }
 
    // Create and show bridge dialog.
    model->pushToStack();
    Bridge* bridge = new Bridge(newName, *source, *destination);
    BridgeDialog dialog(parentWindow(), bridge, NULL);
 
    if (dialog.ShowModal() == wxID_OK) {
    model->notifyObservers();
    } else {
    // bridge creation was cancelled
    model->popFromStack();
    }
    return false;
}
 
 
/**
 * Returns id of this command.
 *
 * @return ID for this command to be used in menus and toolbars.
 */
int
AddBridgeCmd::id() const {
    return ProDeConstants::COMMAND_ADD_BRIDGE;
}
 
 
/**
 * Creates and returns a new instance of this command.
 *
 * @return Newly created instance of this command.
 */
AddBridgeCmd*
AddBridgeCmd::create() const {
    return new AddBridgeCmd();
}
 
 
 
/**
 * Returns short version of the command name.
 *
 * @return Short name of the command to be used in the toolbar.
 */
string
AddBridgeCmd::shortName() const {
    return ProDeConstants::CMD_SNAME_ADD_BRIDGE;
}
 
 
/**
 * Returns true when the command is executable, false when not.
 *
 * This command is executable when a document is open.
 *
 * @return True, if a document is open.
 */
bool
AddBridgeCmd::isEnabled() {
    wxDocManager* manager = wxGetApp().docManager();
    if (manager->GetCurrentView() != NULL) {
    return true;
    }
    return false;
}