add is null

and comment about constness

3 files changed, 8 insertions, 1 deletions

diff --git a/libopie/odevice.h b/libopie/odevice.h
index 650a2da..d8ad135 100644
--- a/libopie/odevice.h
+++ b/libopie/odevice.h
@@ -1,10 +1,11 @@
 /*  This file is part of the OPIE libraries
     Copyright (C) 2002 Robert Griebl (sandman@handhelds.org)
+    Copyright (C) 2003 Holger 'zecke' Freyther (zecke@handhelds.org)
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -208,17 +209,17 @@ public:
 	bool setCurrentCpuFrequency(uint index);
 
 	/**
 	 * Returns the available buttons on this device.  The number and location
 	 * of buttons will vary depending on the device.  Button numbers will be assigned
 	 * by the device manufacturer and will be from most preferred button to least preffered
 	 * button.  Note that this list only contains "user mappable" buttons.
 	 */
-	const QValueList<ODeviceButton> &buttons ( );
+       const QValueList<ODeviceButton> &buttons ( ) /* ### make const */;
 
 	/**
 	 * Returns the DeviceButton for the \a keyCode.  If \a keyCode is not found, it
 	 * returns 0L
 	 */
 	const ODeviceButton *buttonForKeycode ( ushort keyCode );
 
 	/**
diff --git a/libopie/odevicebutton.cpp b/libopie/odevicebutton.cpp
index eccb57c..314eb51 100644
--- a/libopie/odevicebutton.cpp
+++ b/libopie/odevicebutton.cpp
@@ -91,16 +91,20 @@ 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;
diff --git a/libopie/odevicebutton.h b/libopie/odevicebutton.h
index fcc2af1..1621526 100644
--- a/libopie/odevicebutton.h
+++ b/libopie/odevicebutton.h
@@ -39,16 +39,18 @@ public:
 	void setChannel ( const QCString &channel );
 	void setMessage ( const QCString &message );
 	void setData ( const QByteArray &ba );
 
 	QCString channel ( ) const;
 	QCString message ( ) const;
 	QByteArray data ( ) const;
 
+        bool isNull()const;
+
 	bool send ( );
 
 private:
 	void init ( const QCString &m_channel, const QCString &message, const QByteArray &args );
 
 	OQCopMessageData *d;
 	class Private;
 	Private* m_data;