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Pattern: fix beat pattern behaviour with different time signatures

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This commit is contained in:
Vesa
2014-03-05 05:28:46 +02:00
parent 06421005dd
commit 5d1e864417
2 changed files with 112 additions and 31 deletions
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2
include/pattern.h
View File

@@ -71,6 +71,8 @@ public:
void removeNote( const note * _note_to_del );
note * getNoteAtStep( int _step );
note * rearrangeNote( const note * _note_to_proc,
const bool _quant_pos = true );
void rearrangeAllNotes();

141
src/tracks/pattern.cpp
View File

@@ -166,9 +166,6 @@ MidiTime pattern::beatPatternLength() const
return MidiTime( max_length ).nextFullTact() * MidiTime::ticksPerTact();
}
note * pattern::addNote( const note & _new_note, const bool _quant_pos )
{
note * new_note = new note( _new_note );
@@ -240,6 +237,20 @@ void pattern::removeNote( const note * _note_to_del )
}
// returns a pointer to the note at specified step, or NULL if note doesn't exist
note * pattern::getNoteAtStep( int _step )
{
for( NoteVector::Iterator it = m_notes.begin(); it != m_notes.end();
++it )
{
if( ( *it )->pos() == ( _step * MidiTime::ticksPerTact() ) / MidiTime::stepsPerTact() )
{
return *it;
}
}
return NULL;
}
note * pattern::rearrangeNote( const note * _note_to_proc,
@@ -286,7 +297,7 @@ void pattern::setStep( int _step, bool _enabled )
for( NoteVector::Iterator it = m_notes.begin(); it != m_notes.end();
++it )
{
if( ( *it )->pos() == _step*DefaultTicksPerTact/16 &&
if( ( *it )->pos() == ( _step * MidiTime::ticksPerTact() ) / MidiTime::stepsPerTact() &&
( *it )->length() <= 0 )
{
( *it )->setLength( _enabled ?
@@ -423,6 +434,7 @@ void pattern::addSteps()
m_steps += MidiTime::stepsPerTact();
ensureBeatNotes();
emit dataChanged();
updateBBTrack();
}
@@ -439,7 +451,7 @@ void pattern::removeSteps()
it != m_notes.end(); ++it )
{
if( ( *it )->pos() ==
i * MidiTime::ticksPerTact() /
( i * MidiTime::ticksPerTact() ) /
MidiTime::stepsPerTact() &&
( *it )->length() <= 0 )
{
@@ -451,6 +463,7 @@ void pattern::removeSteps()
m_steps -= _n;
emit dataChanged();
}
updateBBTrack();
}
@@ -471,13 +484,12 @@ void pattern::ensureBeatNotes()
for( int i = 0; i < m_steps; ++i )
{
bool found = false;
for( NoteVector::Iterator it = m_notes.begin();
it != m_notes.end(); ++it )
for( NoteVector::Iterator it = m_notes.begin(); it != m_notes.end(); ++it )
{
// if a note in this position is the one we want
if( ( *it )->pos() ==
i * MidiTime::ticksPerTact() /
MidiTime::stepsPerTact() &&
( *it )->length() <= 0 )
( i * MidiTime::ticksPerTact() ) / MidiTime::stepsPerTact()
&& ( *it )->length() <= 0 )
{
found = true;
break;
@@ -485,11 +497,34 @@ void pattern::ensureBeatNotes()
}
if( found == false )
{
addNote( note( MidiTime( 0 ), MidiTime( i *
MidiTime::ticksPerTact() /
addNote( note( MidiTime( 0 ), MidiTime( ( i *
MidiTime::ticksPerTact() ) /
MidiTime::stepsPerTact() ) ), false );
}
}
// remove notes we no longer need:
// that is, disabled notes that no longer fall to the steps of the new time sig
for( NoteVector::Iterator it = m_notes.begin(); it != m_notes.end(); )
{
bool needed = false;
for( int i = 0; i < m_steps; ++i )
{
if( ( *it )->pos() == ( i * MidiTime::ticksPerTact() ) / MidiTime::stepsPerTact()
|| ( *it )->length() != 0 )
{
needed = true;
break;
}
}
if( needed == false )
{
delete *it;
it = m_notes.erase( it );
}
else ++it;
}
}
@@ -552,6 +587,7 @@ void pattern::changeTimeSignature()
qMax<tick_t>( m_steps, MidiTime::stepsPerTact() ),
last_pos.getTact() * MidiTime::stepsPerTact() );
ensureBeatNotes();
updateBBTrack();
}
@@ -719,30 +755,63 @@ void patternView::mousePressEvent( QMouseEvent * _me )
( fixedTCOs() || pixelsPerTact() >= 96 ||
m_pat->m_steps != MidiTime::stepsPerTact() ) &&
_me->y() > height() - s_stepBtnOff->height() )
// when mouse button is pressed in beat/bassline -mode
{
int step = ( _me->x() - TCO_BORDER_WIDTH ) *
m_pat->length() / DefaultBeatsPerTact / width();
// get the step number that was clicked on and
// do calculations in floats to prevent rounding errors...
float tmp = ( ( float(_me->x()) - TCO_BORDER_WIDTH ) *
float( m_pat -> m_steps ) ) / float(width() - TCO_BORDER_WIDTH*2);
int step = int( tmp );
// debugging to ensure we get the correct step...
// qDebug( "Step (%f) %d", tmp, step );
if( step >= m_pat->m_steps )
{
qDebug( "Something went wrong in pattern.cpp: step %d doesn't exist in pattern!", step );
return;
}
note * n = m_pat->m_notes[step];
if( n->length() < 0 )
note * n = m_pat->getNoteAtStep( step );
// if note at step not found, ensureBeatNotes and try again
if( n == NULL )
{
n->setLength( 0 );
m_pat -> ensureBeatNotes();
n = m_pat->getNoteAtStep( step );
if( n == NULL ) // still can't find a note? bail!
{
qDebug( "Something went wrong in pattern.cpp: couldn't add note at step %d!", step );
return;
}
}
else
else // note at step found
{
n->setLength( -DefaultTicksPerTact );
if( n->length() < 0 )
{
n->setLength( 0 ); // set note as enabled beat note
}
else
{
n->setLength( -DefaultTicksPerTact ); // set note as disabled beat note
}
}
engine::getSong()->setModified();
update();
if( engine::getPianoRoll()->currentPattern() == m_pat )
{
engine::getPianoRoll()->update();
}
}
else
// if not in beat/bassline -mode, let parent class handle the event
{
trackContentObjectView::mousePressEvent( _me );
}
@@ -933,10 +1002,10 @@ void patternView::paintEvent( QPaintEvent * )
y_pos < central_y )
{
const int x1 = 2 * x_base +
static_cast<int>( ( *it )->pos() * ppt /
static_cast<int>( ( *it )->pos() * ( ppt - TCO_BORDER_WIDTH ) /
MidiTime::ticksPerTact() );
const int x2 =
static_cast<int>( ( ( *it )->pos() + ( *it )->length() ) * ppt / MidiTime::ticksPerTact() );
static_cast<int>( ( ( *it )->pos() + ( *it )->length() ) * ( ppt - TCO_BORDER_WIDTH ) / MidiTime::ticksPerTact() );
p.drawLine( x1, y_base + y_pos,
x2, y_base + y_pos );
@@ -945,6 +1014,9 @@ void patternView::paintEvent( QPaintEvent * )
}
}
}
// beat pattern paint event
else if( m_pat->m_patternType == pattern::BeatPattern &&
( fixedTCOs() || ppt >= 96
|| m_pat->m_steps != MidiTime::stepsPerTact() ) )
@@ -954,8 +1026,10 @@ void patternView::paintEvent( QPaintEvent * )
QPixmap stepoff;
QPixmap stepoffl;
const int steps = qMax( 1,
m_pat->length() / DefaultBeatsPerTact );
m_pat->m_steps );
const int w = width() - 2 * TCO_BORDER_WIDTH;
// scale step graphics to fit the beat pattern length
stepon = s_stepBtnOn->scaled( w / steps,
s_stepBtnOn->height(),
Qt::IgnoreAspectRatio,
@@ -972,17 +1046,22 @@ void patternView::paintEvent( QPaintEvent * )
s_stepBtnOffLight->height(),
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation );
for( NoteVector::Iterator it = m_pat->m_notes.begin();
it != m_pat->m_notes.end(); ++it )
for( int it = 0; it < steps; it++ ) // go through all the steps in the beat pattern
{
const int no = ( *it )->pos() / DefaultBeatsPerTact;
const int x = TCO_BORDER_WIDTH + static_cast<int>( no *
w / steps );
note * n = m_pat->getNoteAtStep( it );
// figure out x and y coordinates for step graphic
const int x = TCO_BORDER_WIDTH + static_cast<int>( it * w / steps );
const int y = height() - s_stepBtnOff->height() - 1;
const int vol = ( *it )->getVolume();
// get volume and length of note, if getNoteAtStep returned null
// (meaning, note at step doesn't exist for some reason)
// then set both at zero, ie. treat as an off step
const int vol = ( n != NULL ? n->getVolume() : 0 );
const int len = ( n != NULL ? int( n->length() ) : 0 );
if( ( *it )->length() < 0 )
if( len < 0 )
{
p.drawPixmap( x, y, stepoff );
for( int i = 0; i < vol / 5 + 1; ++i )
@@ -995,7 +1074,7 @@ void patternView::paintEvent( QPaintEvent * )
p.drawPixmap( x, y, stepoverlay );
}
}
else if( ( no / 4 ) % 2 )
else if( ( it / 4 ) % 2 )
{
p.drawPixmap( x, y, stepoffl );
}
@@ -1003,7 +1082,7 @@ void patternView::paintEvent( QPaintEvent * )
{
p.drawPixmap( x, y, stepoff );
}
}
} // end for loop
}
p.setFont( pointSize<8>( p.font() ) );