CutComponentCmd.cc

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
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    The above copyright notice and this permission notice shall be included in
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    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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/**
 * @file CutComponentCmd.cc
 *
 * Implementation of CutComponentCmd class.
 *
 * @author Veli-Pekka Jääskeläinen 2004 (vjaaskel-no.spam-cs.tut.fi)
 */
 
#include <wx/docview.h>
 
#include "Application.hh"
#include "CutComponentCmd.hh"
#include "ComponentCommand.hh"
#include "MDFView.hh"
#include "MDFDocument.hh"
#include "EditPart.hh"
#include "ProDeConstants.hh"
#include "Request.hh"
#include "ProDe.hh"
 
using std::string;
 
/**
 * The Constructor.
 */
CutComponentCmd::CutComponentCmd():
    EditorCommand(ProDeConstants::CMD_NAME_CUT) {
}
 
 
 
/**
 * Executes the command.
 *
 * @return True, if the command was succesfully executed, false otherwise.
 */
bool
CutComponentCmd::Do() {
 
    assert(view() != NULL);
 
    Request* copyRequest = new Request(Request::COPY_REQUEST);
    Request* deleteRequest = new Request(Request::DELETE_REQUEST);
 
    EditPart* selected = dynamic_cast<MDFView*>(view())->selection();
    if (selected == NULL) {
        return false;
    }
 
    // Request copy and delete commands.
    ComponentCommand* copyCommand = selected->performRequest(copyRequest);
    ComponentCommand* deleteCommand = selected->performRequest(deleteRequest);
 
    // Execute the returned commands.
    if (copyCommand == NULL || deleteCommand == NULL) {
        return false;
    } else {
 
        dynamic_cast<MDFView*>(view())->clearSelection();
 
    Model* model = dynamic_cast<MDFDocument*>(
        wxGetApp().docManager()->GetCurrentDocument())->getModel();
 
    model->pushToStack();
 
        // copy
        copyCommand->setParentWindow(parentWindow());
        copyCommand->Do();
 
        // delete
        deleteCommand->setParentWindow(parentWindow());
        deleteCommand->Do();
 
    model->notifyObservers();
 
        return false;
    }
}
 
 
/**
 * Returns command identifier of this command.
 *
 * @return ID for this command to be used in menus and toolbars.
 */
int
CutComponentCmd::id() const {
    return ProDeConstants::COMMAND_CUT;
}
 
 
/**
 * Creates and returns a new instance of this command.
 *
 * @return Newly created instance of this command.
 */
CutComponentCmd*
CutComponentCmd::create() const {
    return new CutComponentCmd();
}
 
 
 
/**
 * Returns path to the command's icon file.
 *
 * @return Full path to the command's icon file.
 */
string
CutComponentCmd::icon() const {
    return ProDeConstants::CMD_ICON_CUT;
}
 
 
 
/**
 * Returns true when the command is executable, false when not.
 *
 * This command is executable when a component is selected, and the
 * selected component can be copied and deleted.
 *
 * @return True, if a component is selected.
 */
bool
CutComponentCmd::isEnabled() {
    wxDocManager* manager = wxGetApp().docManager();
 
    MDFView* mdfView = dynamic_cast<MDFView*>(manager->GetCurrentView());
    if (mdfView == NULL) {
    return false;
    }
 
    EditPart* selected = mdfView->selection();
    Request* copyRequest = new Request(Request::COPY_REQUEST);
    Request* deleteRequest = new Request(Request::DELETE_REQUEST);
    if (selected == NULL ||
        !(selected->canHandle(copyRequest)) ||
        !(selected->canHandle(deleteRequest))) {
 
    delete copyRequest;
    return false;
    }
    delete copyRequest;
    delete deleteRequest;
    return true;
}