Command.cpp

Go to the documentation of this file.

// -*- c-basic-offset: 4 -*-
#include "Command.h"
 
namespace PanoCommand
{
 
PanoCommand::~PanoCommand()
{
    if (m_memento != NULL)
    {
        delete m_memento;
    };
    if (m_redoMemento != NULL)
    {
        delete m_redoMemento;
    };
}
 
void PanoCommand::execute()
{
    saveMemento();
    bool success = processPanorama(m_pano);
    setSuccessful(success);
    if (success)
    {
        // notify all observers about changes
        m_pano.changeFinished();
        if (m_clearDirty)
        {
            m_pano.clearDirty();
        };
    }
    else
    {
        // [TODO] warning!
        m_pano.setMementoToCopyOf(m_memento);
    };
}
 
void PanoCommand::undo()
{
    DEBUG_ASSERT(m_memento != NULL);
    saveRedoMemento();
    m_pano.setMementoToCopyOf(m_memento);
    m_pano.changeFinished();
}
 
void PanoCommand::redo()
{
    if (m_redoMemento == NULL)
    {
        execute();
    }
    else
    {
        m_pano.setMementoToCopyOf(m_redoMemento);
        m_pano.changeFinished();
    };
}
 
std::string PanoCommand::getName() const
{
    return m_name;
}
 
void PanoCommand::setName(const std::string& newName)
{
    m_name = newName;
}
 
bool PanoCommand::wasSuccessful() const
{
    return m_successful;
}
 
void PanoCommand::setSuccessful(bool success)
{
    m_successful = success;
}
 
void PanoCommand::saveMemento()
{
    if (m_memento != NULL)
    {
        delete m_memento;
    };
    m_memento = m_pano.getNewMemento();
};
 
void PanoCommand::saveRedoMemento()
{
    if (m_redoMemento != NULL)
    {
        delete m_redoMemento;
    };
    m_redoMemento = m_pano.getNewMemento();
}
 
bool PanoCommand::processPanorama(HuginBase::Panorama& panoramaData)
{
    return true;
}
 
} // namespace