fixed lot of issues in MIDI-import-filter and added support for tempo-change-events

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@497 0778d3d1-df1d-0410-868b-ea421aaaa00d

include/automation_pattern.h

@@ -95,19 +95,24 @@ public:
 		return( classNodeName() );
 	}
 
-	inline const track * getTrack( void )
+	inline const track * getTrack( void ) const
 	{
 		return( m_track );
 	}
 
-	inline const levelObject * object( void )
+	inline const levelObject * object( void ) const
+	{
+		return( m_object );
+	}
+
+	inline levelObject * object( void )
 	{
 		return( m_object );
 	}
 
 	void processMidiTime( const midiTime & _time );
 
-	inline bool updateFirst( void )
+	inline bool updateFirst( void ) const
 	{
 		return( m_update_first );
 	}
@@ -117,7 +122,7 @@ public:
 		m_update_first = _update;
 	}
 
-	void forgetTrack()
+	void forgetTrack( void )
 	{
 		m_track = NULL;
 	}

include/midi.h

@@ -59,7 +59,23 @@ enum midiEventTypes
 	MIDI_SYSTEM_RESET = 0xFF,
 	// meta event - for midi files only
 	MIDI_META_EVENT = 0xFF,
-	MIDI_TEMPO = 0xFF51
+} ;
+
+enum midiMetaEvents
+{
+	MIDI_COPYRIGHT = 0x02,
+	MIDI_TRACK_NAME = 0x03,
+	MIDI_INST_NAME = 0x04,
+	MIDI_LYRIC = 0x05,
+	MIDI_MARKER = 0x06,
+	MIDI_CUE_POINT = 0x07,
+	MIDI_PORT_NUMBER = 0x21,
+	MIDI_EOT = 0x2f,
+	MIDI_SET_TEMPO = 0x51,
+	MIDI_SMPTE_OFFSET = 0x54,
+	MIDI_TIME_SIGNATURE = 0x58,
+	MIDI_KEY_SIGNATURE = 0x59,
+	MIDI_SEQUENCER_EVENT = 0x7f
 } ;
 
 

include/song_editor.h

@@ -130,6 +130,7 @@ public:
 
 
 	bpm_t getTempo( void );
+	virtual automationPattern * tempoAutomationPattern( void );
 
 
 	// every function that replaces current file (e.g. creates new file,

include/track_container.h

@@ -82,6 +82,11 @@ public:
 		return( m_currentPosition );
 	}
 
+	virtual automationPattern * tempoAutomationPattern( void )
+	{
+		return( NULL );
+	}
+
 	virtual bool fixedTCOs( void ) const
 	{
 		return( FALSE );