added support for panning editing of notes (stable backport)

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/branches/lmms/stable-0.4@1948 0778d3d1-df1d-0410-868b-ea421aaaa00d

include/midi.h

@@ -26,8 +26,8 @@
 #ifndef _MIDI_H
 #define _MIDI_H
 
-
 #include "lmms_basics.h"
+#include "panning_constants.h"
 #include <cstdlib>
 
 
@@ -63,6 +63,7 @@ enum MidiEventTypes
 
 enum MidiMetaEvents
 {
+	MidiMetaInvalid = 0x00,
 	MidiCopyright = 0x02,
 	MidiTrackName = 0x03,
 	MidiInstName = 0x04,
@@ -75,7 +76,9 @@ enum MidiMetaEvents
 	MidiSMPTEOffset = 0x54,
 	MidiTimeSignature = 0x58,
 	MidiKeySignature = 0x59,
-	MidiSequencerEvent = 0x7f
+	MidiSequencerEvent = 0x7f,
+	MidiMetaCustom = 0x80,
+	MidiNotePanning
 } ;
 
 
@@ -84,6 +87,9 @@ const int MidiControllerCount = 128;
 const int MidiProgramCount = 128;
 const int MidiMaxVelocity = 127;
 
+const int MidiMaxPanning = 127;
+const int MidiMinPanning = -128;
+
 
 struct midiEvent
 {
@@ -92,6 +98,7 @@ struct midiEvent
 			Sint16 _param1 = 0,
 			Sint16 _param2 = 0 ) :
 		m_type( _type ),
+		m_metaEvent( MidiMetaInvalid ),
 		m_channel( _channel ),
 		m_sysExData( NULL )
 	{
@@ -101,6 +108,7 @@ struct midiEvent
 	midiEvent( MidiEventTypes _type, const char * _sysex_data,
 							int _data_len ) :
 		m_type( _type ),
+		m_metaEvent( MidiMetaInvalid ),
 		m_channel( 0 ),
 		m_sysExData( _sysex_data )
 	{
@@ -109,6 +117,7 @@ struct midiEvent
 
 	midiEvent( const midiEvent & _copy ) :
 		m_type( _copy.m_type ),
+		m_metaEvent( _copy.m_metaEvent ),
 		m_channel( _copy.m_channel ),
 		m_data( _copy.m_data ),
 		m_sysExData( _copy.m_sysExData )
@@ -139,14 +148,28 @@ struct midiEvent
 	{
 		return m_data.m_param[1];
 	}
+		
+	inline Sint16 midiPanning( void ) const
+	{
+		return m_data.m_param[1];
+	}
 
 	inline volume getVolume( void ) const
 	{
 		return (volume)( velocity() * 100 / MidiMaxVelocity );
 	}
+	
+	inline panning getPanning( void ) const
+	{
+		return (panning) ( PanningLeft +
+			( (float)( midiPanning() - MidiMinPanning ) ) / 
+			( (float)( MidiMaxPanning - MidiMinPanning ) ) *
+			( (float)( PanningRight - PanningLeft ) ) );
+	}
 
 
 	MidiEventTypes m_type;		// MIDI event type
+	MidiMetaEvents m_metaEvent;	// Meta event (mostly unused)
 	Sint8 m_channel;		// MIDI channel
 	union
 	{

include/note.h

@@ -90,7 +90,21 @@ public:
 		detuningHelper * _detuning = NULL );
 	note( const note & _note );
 	virtual ~note();
-
+	
+	// used by GUI
+	inline void setSelected( const bool _selected ){ m_selected = _selected; }
+	inline void setOldKey( const int _oldKey ){ m_oldKey = _oldKey; }
+	inline void setOldPos( const midiTime & _oldPos ){ m_oldPos = _oldPos; }
+	inline void setOldLength( const midiTime & _oldLength )
+	{
+		m_oldLength = _oldLength;
+	}
+	inline void setIsPlaying( const bool _isPlaying )
+	{
+		m_isPlaying = _isPlaying;
+	}
+	
+	
 	void setLength( const midiTime & _length );
 	void setPos( const midiTime & _pos );
 	void setKey( const int _key );
@@ -99,6 +113,38 @@ public:
 	void quantizeLength( const int _q_grid );
 	void quantizePos( const int _q_grid );
 
+	static inline bool lessThan(note * &lhs, note * &rhs)
+	{
+		// function to compare two notes - must be called explictly when
+		// using qSort
+		return (bool) ((int) ( *lhs ).pos() < (int) ( *rhs ).pos());
+	}
+		
+	inline bool selected( void ) const
+	{
+		return m_selected;
+	}
+	
+	inline int oldKey( void ) const
+	{
+		return m_oldKey;
+	}
+	
+	inline midiTime oldPos( void ) const
+	{
+		return m_oldPos;
+	}
+	
+	inline midiTime oldLength( void ) const
+	{
+		return m_oldLength;
+	}
+		
+	inline bool isPlaying( void ) const
+	{
+		return m_isPlaying;
+	}
+
 	inline midiTime endPos( void ) const
 	{
 		const int l = length();
@@ -177,7 +223,14 @@ private:
 		ChangePosition
 	} ;*/
 
-
+	
+	// for piano roll editing
+	bool m_selected; 
+	int m_oldKey;
+	midiTime m_oldPos;
+	midiTime m_oldLength;
+	bool m_isPlaying;
+	
 	int m_key;
 	volume m_volume;
 	panning m_panning;

include/panning.h

@@ -1,5 +1,5 @@
 /*
- * panning.h - declaration of some constants and types, concerning the
+ * panning.h - declaration of some types, concerning the
  *             panning of a note
  *
  * Copyright (c) 2004-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
@@ -29,11 +29,8 @@
 #include "lmms_basics.h"
 #include "volume.h"
 #include "templates.h"
-
-const panning PanningRight = ( 0 + 100 );
-const panning PanningLeft = - PanningRight;
-const panning PanningCenter = 0;
-const panning DefaultPanning = PanningCenter;
+#include "panning_constants.h"
+#include "midi.h"
 
 inline stereoVolumeVector panningToVolumeVector( panning _p,
 							float _scale = 1.0f )
@@ -44,4 +41,12 @@ inline stereoVolumeVector panningToVolumeVector( panning _p,
 	return v;
 }
 
+inline Sint16 panningToMidi( panning _p )
+{
+	return MidiMinPanning + 
+			  ( (float)( _p - PanningLeft ) ) / 
+			  ( (float)( PanningRight - PanningLeft ) ) *
+			  ( (float)( MidiMaxPanning - MidiMinPanning ) );
+}
+
 #endif

include/panning_constants.h

@@ -0,0 +1,34 @@
+/*
+ * panning_constants.h - declaration of some constants, concerning the
+ *             panning of a note
+ *
+ * Copyright (c) 2004-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * 
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef _PANNING_CONSTANTS_H
+#define _PANNING_CONSTANTS_H
+
+const panning PanningRight = ( 0 + 100 );
+const panning PanningLeft = - PanningRight;
+const panning PanningCenter = 0;
+const panning DefaultPanning = PanningCenter;
+
+#endif

include/pattern.h

@@ -68,13 +68,14 @@ public:
 	virtual midiTime length( void ) const;
 	midiTime beatPatternLength( void ) const;
 
+	// note management
 	note * addNote( const note & _new_note, const bool _quant_pos = true );
 
 	void removeNote( const note * _note_to_del );
 
 	note * rearrangeNote( const note * _note_to_proc,
 						const bool _quant_pos = true );
-
+	void rearrangeAllNotes( void );
 	void clearNotes( void );
 
 	inline const noteVector & notes( void )
@@ -132,6 +133,10 @@ public:
 
 
 	using model::dataChanged;
+		
+		
+	void printNotes( void ); // for debugging purposes
+	
 
 
 protected:

include/piano_roll.h

@@ -3,6 +3,7 @@
  *                can set and edit notes in an easy way
  *
  * Copyright (c) 2004-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * Copyright (c) 2008 Andrew Kelley <superjoe30/at/gmail/dot/com>
  * 
  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
  *
@@ -38,6 +39,9 @@
 class QPainter;
 class QPixmap;
 class QScrollBar;
+class QString;
+class QMenu;
+class QSignalMapper;
 
 class comboBox;
 class notePlayHandle;
@@ -54,17 +58,17 @@ public:
 
 	inline bool isRecording( void ) const
 	{
-		return( m_recording );
+		return m_recording;
 	}
 
 	inline const pattern * currentPattern( void ) const
 	{
-		return( m_pattern );
+		return m_pattern;
 	}
 
 	inline bool validPattern( void ) const
 	{
-		return( m_pattern != NULL );
+		return m_pattern != NULL;
 	}
 
 	int quantization( void ) const;
@@ -75,7 +79,7 @@ public:
 
 	inline virtual QString nodeName( void ) const
 	{
-		return( "pianoroll" );
+		return "pianoroll";
 	}
 
 
@@ -85,20 +89,16 @@ protected:
 	virtual void keyReleaseEvent( QKeyEvent * _ke );
 	virtual void leaveEvent( QEvent * _e );
 	virtual void mousePressEvent( QMouseEvent * _me );
+	virtual void mouseDoubleClickEvent( QMouseEvent * _me );
 	virtual void mouseReleaseEvent( QMouseEvent * _me );
 	virtual void mouseMoveEvent( QMouseEvent * _me );
 	virtual void paintEvent( QPaintEvent * _pe );
 	virtual void resizeEvent( QResizeEvent * _re );
 	virtual void wheelEvent( QWheelEvent * _we );
-#ifdef LMMS_BUILD_LINUX
-	virtual bool x11Event( XEvent * _xe );
-#endif
 
 	int getKey( int _y ) const;
 	static inline void drawNoteRect( QPainter & _p, int _x, int _y,
-					int  _width,
-					const bool _is_selected,
-					const bool _is_step_note );
+					int  _width, note * _n );
 	void removeSelection( void );
 	void selectAll( void );
 	void getSelectedNotes( noteVector & _selected_notes );
@@ -118,7 +118,7 @@ protected slots:
 	void drawButtonToggled( void );
 	void eraseButtonToggled( void );
 	void selectButtonToggled( void );
-	void moveButtonToggled( void );
+	void detuneButtonToggled( void );
 
 	void copySelectedNotes( void );
 	void cutSelectedNotes( void );
@@ -129,6 +129,8 @@ protected slots:
 
 	void zoomingChanged( void );
 	void quantizeChanged( void );
+		
+	void changeNoteEditMode( int i );
 
 
 private:
@@ -138,9 +140,8 @@ private:
 		ModeDraw,
 		ModeErase,
 		ModeSelect,
-		ModeMove,
 		ModeOpen
-	} ;
+	};
 
 	enum actions
 	{
@@ -148,26 +149,54 @@ private:
 		ActionMoveNote,
 		ActionResizeNote,
 		ActionSelectNotes,
-		ActionMoveSelection,
-		ActionChangeNoteVolume,
-		ActionChangeNotePanning
-	} ;
+		ActionChangeNoteProperty,
+		ActionResizeNoteEditArea
+	};
+	
+	enum noteEditMode
+	{
+		NoteEditVolume,
+		NoteEditPanning,
+		NoteEditCount // make sure this one is always last
+	};
 
 	enum pianoRollKeyTypes
 	{
 		PR_WHITE_KEY_SMALL,
 		PR_WHITE_KEY_BIG,
 		PR_BLACK_KEY
-	} ;
+	};
 
+	QVector<QString> m_nemStr; // gui names of each edit mode
+	QMenu * m_noteEditMenu; // when you right click below the key area
+	QSignalMapper * m_signalMapper; // to keep track of edit mode events
 
 	pianoRoll( void );
 	pianoRoll( const pianoRoll & );
 	virtual ~pianoRoll();
 
 	midiTime newNoteLen( void ) const;
-
-
+	
+	void shiftPos(int amount);
+	void shiftSemiTone(int amount);
+	bool isSelection() const;
+	int selectionCount() const;
+	void testPlayNote( note * n );
+	void testPlayKey( int _key, int _vol, int _pan );
+	void pauseTestNotes( bool _pause = true );
+	
+	inline int noteEditTop() const;
+	inline int keyAreaBottom() const;
+	inline int noteEditBottom() const;
+	inline int keyAreaTop() const;
+	inline int noteEditRight() const;
+	inline int noteEditLeft() const;
+	
+	void dragNotes( int x, int y, bool alt );
+		
+	static const int cm_scrollAmtHoriz = 10;
+	static const int cm_scrollAmtVert = 1;
+			
 	static QPixmap * s_whiteKeyBigPm;
 	static QPixmap * s_whiteKeySmallPm;
 	static QPixmap * s_blackKeyPm;
@@ -190,8 +219,8 @@ private:
 	toolButton * m_drawButton;
 	toolButton * m_eraseButton;
 	toolButton * m_selectButton;
-	toolButton * m_moveButton;
-
+	toolButton * m_detuneButton;
+		
 	toolButton * m_cutButton;
 	toolButton * m_copyButton;
 	toolButton * m_pasteButton;
@@ -215,30 +244,51 @@ private:
 
 	note * m_currentNote;
 	actions m_action;
+	noteEditMode m_noteEditMode;
 
 	Uint32 m_selectStartTick;
 	int m_selectedTick;
 	int m_selectStartKey;
 	int m_selectedKeys;
+	
+	// boundary box around all selected notes when dragging
+	int m_moveBoundaryLeft;
+	int m_moveBoundaryTop;
+	int m_moveBoundaryRight;
+	int m_moveBoundaryBottom;
+	
+	// remember where the scrolling started when dragging so that
+	// we can handle dragging while scrolling with arrow keys
+	int m_mouseDownKey;
+	int m_mouseDownTick;
+	
+	// remember the last x and y of a mouse movement
+	int m_lastMouseX;
+	int m_lastMouseY;
+	
+	// x,y of when the user starts a drag
+	int m_moveStartX;
+	int m_moveStartY;
 
-	int m_moveStartKey;
-	int m_moveStartTick;
-	int m_moveXOffset;
-
+	int m_oldNotesEditHeight;
 	int m_notesEditHeight;
 	int m_ppt;
 	int m_totalKeysToScroll;
 
+	// remember these values to use them 
+	// for the next note that is set
 	midiTime m_lenOfNewNotes;
+	volume m_lastNoteVolume;
+	panning m_lastNotePanning;
 
 	int m_startKey;			// first key when drawing
 	int m_lastKey;
 
-	noteVector m_selNotesForMove;
-
-
 	editModes m_editMode;
-
+	editModes m_ctrlMode; // mode they were in before they hit ctrl
+		
+	bool m_mouseDownLeft; //true if left click is being held down
+	bool m_mouseDownRight; //true if right click is being held down
 
 	timeLine * m_timeLine;
 	bool m_scrollBack;
@@ -249,8 +299,10 @@ private:
 	bool mouseOverNote( void );
 	note * noteUnderMouse( void );
 	noteVector::const_iterator noteIteratorUnderMouse( void );
-
-
+	
+	// turn a selection rectangle into selected notes
+	void computeSelectedNotes( bool shift ); 
+	void clearSelectedNotes( void );
 
 	friend class engine;