add is null

and comment about constness

1 files changed, 4 insertions, 0 deletions

diff --git a/libopie/odevicebutton.cpp b/libopie/odevicebutton.cpp
index eccb57c..314eb51 100644
--- a/libopie/odevicebutton.cpp
+++ b/libopie/odevicebutton.cpp
@@ -67,64 +67,68 @@ void OQCopMessage::init ( const QCString &ch, const QCString &m, const QByteArra
 	d-> m_message = m;
 	d-> m_data = arg;
 }
 
 bool OQCopMessage::send ( )
 {
 	if ( d-> m_channel. isEmpty ( ) || d-> m_message. isEmpty ( ) )
 		return false;
 
 	QCopEnvelope e ( d-> m_channel, d-> m_message );
 
 	if ( d-> m_data. size ( ))
 		e. writeRawBytes ( d-> m_data. data ( ), d-> m_data. size ( ));
 
 	return true;
 }
 
 QCString OQCopMessage::channel ( ) const
 {
 	return d-> m_channel;
 }
 
 QCString OQCopMessage::message ( ) const
 {
 	return d-> m_message;
 }
 
 QByteArray OQCopMessage::data ( ) const
 {
 	return d-> m_data;
 }
 
+bool OQCopMessage::isNull() const
+{
+	return d-> m_message.isNull() || d-> m_channel.isNull();
+}
 void OQCopMessage::setChannel ( const QCString &ch )
 {
 	d-> m_channel = ch;
 }
 
 void OQCopMessage::setMessage ( const QCString &m )
 {
 	d-> m_message = m;
 }
 
 void OQCopMessage::setData ( const QByteArray &data )
 {
 	d-> m_data = data;
 }
 
 /*! \class Opie::ODeviceButton
     \brief The Opie::ODeviceButton class represents a physical user mappable button on a Qtopia device.
 
     This class represents a physical button on a Qtopia device.    A
     device may have "user programmable" buttons.
     The location and number of buttons will vary from device to
     device.    userText() and pixmap() may be used to describe this button
     to the user in help documentation.
 
     \ingroup qtopiaemb
     \internal
 */
 
 ODeviceButton::ODeviceButton()
 {
 }