RedoCmd.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 rights to use, copy, modify, merge, publish, distribute, sublicense,
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    Software is furnished to do so, subject to the following conditions:
 
    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.
 
    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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/**
 * @file RedoCmd.cc
 *
 * Definition of RedoCmd class.
 *
 * @author Veli-Pekka Jääskeläinen (vjaaskel-no.spam-cs.tut.fi)
 */
 
#include <wx/docview.h>
#include "RedoCmd.hh"
#include "ProDe.hh"
#include "ProDeConstants.hh"
#include "MDFDocument.hh"
 
 
using std::string;
 
/**
 * The Constructor.
 */
RedoCmd::RedoCmd():
    EditorCommand(ProDeConstants::CMD_NAME_REDO) {
 
}
 
 
/**
 * The Destructor.
 */
RedoCmd::~RedoCmd() {}
 
 
/**
 * Executes the command.
 *
 * @return Always false.
 */
bool
RedoCmd::Do() {
    dynamic_cast<MDFDocument*>(view()->GetDocument())->getModel()->redo();
    return false;
}
 
 
/**
 * Returns id of this command.
 *
 * @return ID for this command to be used in menus and toolbars.
 */
int
RedoCmd::id() const {
    return ProDeConstants::COMMAND_REDO;
}
 
 
/**
 * Creates and returns a new instance of this command.
 *
 * @return Newly created instance of this command.
 */
RedoCmd*
RedoCmd::create() const {
    return new RedoCmd();
}
 
 
 
/**
 * Returns path to the command's icon file.
 *
 * @return Full path to the command's icon file.
 */
string
RedoCmd::icon() const {
    return ProDeConstants::CMD_ICON_REDO;
}
 
 
/**
 * Returns true when the command is executable, false when not.
 *
 * This command is executable when the model has an undone modification
 * cached.
 *
 * @return True, if the model's redo cache is not empty.
 */
bool
RedoCmd::isEnabled() {
 
    wxDocManager* manager = wxGetApp().docManager();
 
    wxView* view = manager->GetCurrentView();
    if (view == NULL) {
        return false;
    }
 
    Model* model =
        dynamic_cast<MDFDocument*>(view->GetDocument())->getModel();
 
    if (model != NULL && model->canRedo()) {
    return true;
    }
    return false;
}