Projektarbeit_Lichtklavier/PianoKeyBoard.cpp

#include "PianoKeyBoard.h"
#include "MainWindow.h"
#include <QGraphicsSceneMouseEvent>
#include <QColorDialog>

PianoKeyBoard::PianoKeyBoard(qreal x, qreal y, qreal w, qreal h, MainWindow *parent): QGraphicsScene(x,y,w,h){

    addItem(keys[0] = new PianoKey(parent->colorScale.getToneByName("C")));
    addItem(keys[1] = new PianoKey(parent->colorScale.getToneByName("Cis")));
    addItem(keys[2] = new PianoKey(parent->colorScale.getToneByName("D")));
    addItem(keys[3] = new PianoKey(parent->colorScale.getToneByName("Dis")));
    addItem(keys[4] = new PianoKey(parent->colorScale.getToneByName("E")));
    addItem(keys[5] = new PianoKey(parent->colorScale.getToneByName("F")));
    addItem(keys[6] = new PianoKey(parent->colorScale.getToneByName("Fis")));
    addItem(keys[7] = new PianoKey(parent->colorScale.getToneByName("G")));
    addItem(keys[8] = new PianoKey(parent->colorScale.getToneByName("Gis")));
    addItem(keys[9] = new PianoKey(parent->colorScale.getToneByName("A")));
    addItem(keys[10] = new PianoKey(parent->colorScale.getToneByName("Ais")));
    addItem(keys[11] = new PianoKey(parent->colorScale.getToneByName("H")));

    for(int i=0; i<12; i++)
        QObject::connect(keys[i]->getTone(), &Tone::colorchanged, keys[i], &PianoKey::redraw);

};

void PianoKeyBoard::mousePressEvent(QGraphicsSceneMouseEvent *event){
    QString title = "Bitte Farbe wählen für Ton ";
    if(event->button() == Qt::LeftButton){
        //first check "black" Piano keys as they are in foreground
        for(int i=6; i<12; i++){
            if(keys[i]->sceneBoundingRect().contains(event->scenePos())){
                keys[i]->getTone()->setColor(
                            QColorDialog::getColor(
                                keys[i]->getTone()->getColor(),
                                nullptr,
                                title.append(keys[i]->getTone()->getName()),
                                QColorDialog::DontUseNativeDialog
                                )
                            );
                return;
            }
        }
        for(int i=0; i<6; i++){
            if(keys[i]->sceneBoundingRect().contains(event->scenePos())){
                keys[i]->getTone()->setColor(
                            QColorDialog::getColor(
                                keys[i]->getTone()->getColor(),
                                nullptr,
                                title.append(keys[i]->getTone()->getName()),
                                QColorDialog::DontUseNativeDialog
                                )
                            );
                return;
            }
        }
    }
};
PianoKey * PianoKeyBoard::getKey(int number)const{
    return keys[number];
};
PianoKeyBoard::~PianoKeyBoard(){

};