C++ (Cpp) aboutToChange Examples

Example #1

File: vector_property.cpp Project: F34140r/visualization-userfriendly

void VectorProperty::emitAboutToChange()
{
  if( !ignore_child_updates_ )
  {
    Q_EMIT aboutToChange();
  }
}

Example #2

File: quaternion_property.cpp Project: CURG/rviz

void QuaternionProperty::emitAboutToChange()
{
  if( !ignore_child_updates_ )
  {
    Q_EMIT aboutToChange();
  }
}

Example #3

File: KoRulerController.cpp Project: ChrisJong/krita

KoRulerController::KoRulerController(KoRuler *horizontalRuler, KoCanvasResourceManager *crp)
        : QObject(horizontalRuler),
        d(new Private(horizontalRuler, crp))
{
    connect(crp, SIGNAL(canvasResourceChanged(int, const QVariant &)), this, SLOT(canvasResourceChanged(int)));
    connect(horizontalRuler, SIGNAL(indentsChanged(bool)), this, SLOT(indentsChanged()));
    connect(horizontalRuler, SIGNAL(aboutToChange()), this, SLOT(tabChangeInitiated()));
    connect(horizontalRuler, SIGNAL(tabChanged(int, KoRuler::Tab*)), this, SLOT(tabChanged(int, KoRuler::Tab*)));
}

Example #4

bool Property::setValue( const QVariant& new_value )
{
  if( new_value != value_ ) {
    Q_EMIT aboutToChange();
    value_ = new_value;
    Q_EMIT changed();
    if( model_ )
    {
      model_->emitDataChanged( this );
    }
    return true;
  }
  return false;
}

Example #5

File: quaternion_property.cpp Project: CURG/rviz

QuaternionProperty::QuaternionProperty( const QString& name,
                                        const Ogre::Quaternion& default_value,
                                        const QString& description,
                                        Property* parent,
                                        const char *changed_slot,
                                        QObject* receiver )
  : Property( name, QVariant(), description, parent, changed_slot, receiver )
  , quaternion_( default_value )
  , ignore_child_updates_( false )
{
  x_ = new Property( "X", quaternion_.x, "X coordinate", this );
  y_ = new Property( "Y", quaternion_.y, "Y coordinate", this );
  z_ = new Property( "Z", quaternion_.z, "Z coordinate", this );
  w_ = new Property( "W", quaternion_.w, "W coordinate", this );
  updateString();
  connect( x_, SIGNAL( aboutToChange() ), this, SLOT( emitAboutToChange() ));
  connect( y_, SIGNAL( aboutToChange() ), this, SLOT( emitAboutToChange() ));
  connect( z_, SIGNAL( aboutToChange() ), this, SLOT( emitAboutToChange() ));
  connect( w_, SIGNAL( aboutToChange() ), this, SLOT( emitAboutToChange() ));
  connect( x_, SIGNAL( changed() ), this, SLOT( updateFromChildren() ));
  connect( y_, SIGNAL( changed() ), this, SLOT( updateFromChildren() ));
  connect( z_, SIGNAL( changed() ), this, SLOT( updateFromChildren() ));
  connect( w_, SIGNAL( changed() ), this, SLOT( updateFromChildren() ));
}

Example #6

File: quaternion_property.cpp Project: CURG/rviz

bool QuaternionProperty::setQuaternion( const Ogre::Quaternion& new_quaternion )
{
  if( new_quaternion != quaternion_ ) {
    Q_EMIT aboutToChange();
    quaternion_ = new_quaternion;
    ignore_child_updates_ = true;
    x_->setValue( quaternion_.x );
    y_->setValue( quaternion_.y );
    z_->setValue( quaternion_.z );
    w_->setValue( quaternion_.w );
    ignore_child_updates_ = false;
    updateString();
    Q_EMIT changed();
    return true;
  }
  return false;
}