Diffstat (limited to 'noncore/multimedia/tonleiter/fretboard.cpp') (more/less context) (show whitespace changes)
| -rw-r--r-- | noncore/multimedia/tonleiter/fretboard.cpp | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/noncore/multimedia/tonleiter/fretboard.cpp b/noncore/multimedia/tonleiter/fretboard.cpp new file mode 100644 index 0000000..d8e48d3 --- a/dev/null +++ b/noncore/multimedia/tonleiter/fretboard.cpp @@ -0,0 +1,159 @@ +#include "fretboard.h" + +#include <qpainter.h> + +FretBoard::FretBoard(TonleiterData* data,QWidget* parent,const char* name,WFlags f) +:QWidget(parent,name,f),data(data) +{ + setBackgroundColor(QColor(0,0,0)); + fretpen=QPen(QColor(155,155,155),0); + markerbrush=QBrush(QColor(155,155,155)); + stringpen=QPen(QColor(255,255,255),3); + connect(data,SIGNAL(dataChange()),this,SLOT(dataChange())); +} +//**************************************************************************** +FretBoard::~FretBoard() +{ +} +//**************************************************************************** +void FretBoard::dataChange() +{ + repaint(true); +} +//**************************************************************************** +void FretBoard::paintEvent(QPaintEvent* pe) +{ + Q_UNUSED(pe); + + int instid=data->getCurrentInstrumentID(); + inst=data->getInstrument(instid); + //qDebug("inst %d is %s",instid,inst.instName().data()); + + QRect mysize=rect(); + + xmargin=(int)(mysize.width()*0.05); + xmin=2*xmargin; + xmax=mysize.width()-xmargin; + xwidth=xmax-xmin; + + ymargin=(int)(mysize.height()*0.1); + ymin=ymargin; + ymax=mysize.height()-2*ymargin; + yheight=ymax-ymin; + + QPainter p(this); + paintBoard(&p); + paintFrets(&p); + paintStrings(&p); + paintScale(&p); +} +//**************************************************************************** +void FretBoard::resizeEvent(QResizeEvent* re) +{ + Q_UNUSED(re); +} +//**************************************************************************** +void FretBoard::paintBoard(QPainter* p) +{ + //debug + QColor bgc=QColor(142,138,120); + p->setPen(QPen(bgc,5)); + p->setBrush(QBrush(bgc)); + p->drawRect(xmin,ymin,xwidth,yheight); + +} +//**************************************************************************** +void FretBoard::paintFrets(QPainter* p) +{ + //draw frets + p->setPen(fretpen); + p->setBrush(markerbrush); + fretdist=(double)(xwidth)/(double)(inst.noOfFrets()); + + int markerwidth = (int)(fretdist/4.0); + if(markerwidth>5) + markerwidth=5; + else if(markerwidth<2) + markerwidth=2; + + for(int f=0;f<=inst.noOfFrets();f++) + { + int fretpos=(int)(fretdist*f); + p->drawLine(fretpos+xmin,ymin,fretpos+xmin,ymax); + + int above_octave=f%12; + int octave=(f-above_octave)/12; + int marker=f-12*octave; + + + if(marker==5 || marker==7 || marker==9) + { + p->drawEllipse(fretpos+xmin,ymax+ymargin,markerwidth,markerwidth); + } + else if(marker==0 && f!=0) + { + p->drawEllipse(fretpos+xmin,ymax+ymargin+2*markerwidth,markerwidth,markerwidth); + p->drawEllipse(fretpos+xmin,ymax+ymargin-2*markerwidth,markerwidth,markerwidth); + } + + } +} +//**************************************************************************** +void FretBoard::paintStrings(QPainter* p) +{ + //draw strings + p->setPen(stringpen); + + stringdist=(double)(yheight)/(double)(inst.noOfStrings()-1); + for(int s=0;s<inst.noOfStrings();s++) + { + int stringpos=(int)(stringdist*s); + p->drawLine(xmin,stringpos+ymin,xmax,stringpos+ymin); + + int stinglabelid=inst.noOfStrings()-(s+1); + QString label=Note::getNameOfNote(inst.string(stinglabelid)); + p->drawText(xmargin/2,stringpos+ymin,label); + } +} +//**************************************************************************** +void FretBoard::paintScale(QPainter* p) +{ + int dotsize=10; + int scaleid=data->getCurrentScaleID(); + Scale scale=data->getScale(scaleid); + + int colorstart=255%inst.noOfOctaves(); + int colorintervall=(255-colorstart)/inst.noOfOctaves(); + + for(int s=0;s<inst.noOfStrings();s++) + { + int y=(int)(stringdist*s)+ymin; + int stingid=inst.noOfStrings()-(s+1); + for(int f=0;f<=inst.noOfFrets();f++) + { + int note=inst.string(stingid)+f; + if(scale.noteInScale(data->getCurrentBaseNote(),note)) + { + int x=(int)(fretdist*f)+xmin; + + int octave=Note::octaveOfBaseNote(data->getCurrentBaseNote(),note); + if(octave>5) octave=5; + p->setPen(QColor(255,0,0)); + int c=colorstart+octave*colorintervall; + QColor dotcolor(c,c,255); + p->setBrush(dotcolor); + + p->drawEllipse(x-dotsize/2,y-dotsize/2,dotsize,dotsize); + + if(data->isDrawNames()) + { + p->setPen(QColor(0,255,0)); + p->drawText(x-dotsize/2,y-dotsize/2,Note::getNameOfNote(note)); + } + + } + } + } +} +//**************************************************************************** +//**************************************************************************** |