Qt钢琴程序

#include "widget.h" #include "ui_widget.h" #include <qlabel.h> #include <qpushbutton.h> #include <qlayout.h> #include <qspinbox.h> #include <unistd.h> #include <stdlib.h> #include <sys/types.h> #include <sys/stat.h> //#include <sys/ioctl.h> #include <fcntl.h> #include <qapplication.h> #include <QMessageBox> #include <QAbstractButton> #include <qsound.h> //#define PWM_IOCTL_SET_FREQ 1 //#define PWM_IOCTL_STOP 0 Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); } Widget::~Widget() { delete ui; } void Widget:: PWM_Play(char c) { switch(c) { case 'A':QSound::play(":/40-C -小字1组.wav");break; case 'W':QSound::play(":/41-C# -小字1组.wav");break; case 'S':QSound::play(":/42-D -小字1组.wav");break; case 'E':QSound::play(":/43-D# -小字1组.wav");break; case 'D':QSound::play(":/44-E -小字1组.wav");break; case 'F':QSound::play(":/45-F -小字1组.wav");break; case 'T':QSound::play(":/46-F# -小字1组.wav");break; case 'G':QSound::play(":/47-G -小字1组.wav");break; case 'Y':QSound::play(":/48-G# -小字1组.wav");break; case 'H':QSound::play(":/49-A -小字1组.wav");break; case 'U':QSound::play(":/50-A# -小字1组.wav");break; case 'J':QSound::play(":/51-B -小字1组.wav");break; case 'K':QSound::play(":/52-C -小字2组.wav");break; case 'O':QSound::play(":/53-C# -小字2组.wav");break; case 'L':QSound::play(":/54-D -小字2组.wav");break; case 'P':QSound::play(":/55-D# -小字2组.wav");break; case ';':QSound::play(":/56-E -小字2组.wav");break; default :sleep(1);break; } } //中音 //C 523 void Widget::on_Button_C_clicked() { PWM_Play('A'); } //C# 554 void Widget::on_Button_C_2_clicked() { PWM_Play('W'); } //D 587 void Widget::on_Button_D_clicked() { PWM_Play('S'); } //Eb 622 void Widget::on_Button_Eb_clicked() { PWM_Play('E'); } //E 659 void Widget::on_Button_E_clicked() { PWM_Play('D'); } //F 698 void Widget::on_Button_F_clicked() { PWM_Play('F'); } //F# 740 void Widget::on_Button_F_2_clicked() { PWM_Play('T'); } //G 784 void Widget::on_Button_G_clicked() { PWM_Play('G'); } //G# 831 void Widget::on_Button_G_2_clicked() { PWM_Play('Y'); } //A 880 void Widget::on_Button_A_clicked() { PWM_Play('H');//QMessageBox::information(this, "Title", "Text"); } //Bb 932 void Widget::on_Button_Bb_clicked() { PWM_Play('U'); } //B 988 void Widget::on_Button_B_clicked() { PWM_Play('J'); } //高音 //C 1047 void Widget::on_Button_C_3_clicked() { PWM_Play('K'); } //C# 1109 void Widget::on_Button_C_4_clicked() { PWM_Play('O'); } //D 1175 void Widget::on_Button_D_2_clicked() { PWM_Play('L'); } //Eb 1245 void Widget::on_Button_Eb_2_clicked() { PWM_Play('P'); } //E 1319 void Widget::on_Button_E_2_clicked() { PWM_Play(';');//QMessageBox::information(this, "Title", "Text"); } void Widget::keyPressEvent(QKeyEvent *event) { int uKey = event->key(); //Qt::Key key = static_cast<Qt::Key>(uKey); switch(uKey) {//信号、事件 case Qt::Key_A: //event->KeyPress; //QCoreApplication::sendEvent(ui->Button_A, //new QEvent(QEvent::MouseButtonRelease)); break; //emit f1(); emit ui->Button_C->click(); ui->Button_C->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);selection-color: rgb(255, 255, 255);padding-top: 60%;border-width:1px;border-style:solid;border-left-color: rgb(0, 0, 0); border-top-color: rgb(0, 0, 0);}"); /* QPoint pos; pos = ui->Button_A->pos(); pos.setX( 20 + pos.x()+(ui->Button_A->width())/2 ); pos.setY( 320 + pos.y()+(ui->Button_A->height())/2 ); QMouseEvent *Press_event = new QMouseEvent(QEvent::MouseButtonPress, pos,Qt::LeftButton,Qt::LeftButton,Qt::NoModifier); QApplication::sendEvent(ui->Button_A,Press_event); break; case Qt::Key_W:emit ui->Button_C_2->click();break; case Qt::Key_S:emit ui->Button_D->click();break; case Qt::Key_E:emit ui->Button_Eb->click();break; case Qt::Key_D:emit ui->Button_E->click();break; case Qt::Key_F:emit ui->Button_F->click();break; case Qt::Key_T:emit ui->Button_F_2->click();break; case Qt::Key_G:emit ui->Button_G->click();break; case Qt::Key_Y:emit ui->Button_G_2->click();break; case Qt::Key_H:emit ui->Button_A->click();break; case Qt::Key_U:emit ui->Button_Bb->click();break; case Qt::Key_J:emit ui->Button_B->click();break; case Qt::Key_K:emit ui->Button_C_3->click();break; case Qt::Key_O:emit ui->Button_C_4->click();break; case Qt::Key_L:emit ui->Button_D_2->click();break; case Qt::Key_P:emit ui->Button_Eb_2->click();break; case Qt::Key_Semicolon:emit ui->Button_E_2->click();break;*/ break; case Qt::Key_W:emit ui->Button_C_2->click();ui->Button_C_2->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);border-width:0px;border-style:solid;color: rgb(0,0,0);}");break; case Qt::Key_S:emit ui->Button_D->click();ui->Button_D->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);selection-color: rgb(255, 255, 255);padding-top: 60%; border-width:1px;border-style:solid;border-left-color: rgb(0, 0, 0); border-top-color: rgb(0, 0, 0);}");break; case Qt::Key_E:emit ui->Button_Eb->click();ui->Button_Eb->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);border-width:0px;border-style:solid;color: rgb(0,0,0);}");break; case Qt::Key_D:emit ui->Button_E->click();ui->Button_E->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);selection-color: rgb(255, 255, 255);padding-top: 60%; border-width:1px;border-style:solid;border-left-color: rgb(0, 0, 0); border-top-color: rgb(0, 0, 0);}");break; case Qt::Key_F:emit ui->Button_F->click();ui->Button_F->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);selection-color: rgb(255, 255, 255);padding-top: 60%; border-width:1px;border-style:solid;border-left-color: rgb(0, 0, 0); border-top-color: rgb(0, 0, 0);}");break; case Qt::Key_T:emit ui->Button_F_2->click();ui->Button_F_2->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);border-width:0px;border-style:solid;color: rgb(0,0,0);}");break; case Qt::Key_G:emit ui->Button_G->click();ui->Button_G->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);selection-color: rgb(255, 255, 255);padding-top: 60%; border-width:1px;border-style:solid;border-left-color: rgb(0, 0, 0); border-top-color: rgb(0, 0, 0);}");break; case Qt::Key_Y:emit ui->Button_G_2->click();ui->Button_G_2->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);border-width:0px;border-style:solid;color: rgb(0,0,0);}");break; case Qt::Key_H:emit ui->Button_A->click();ui->Button_A->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);selection-color: rgb(255, 255, 255);padding-top: 60%; border-width:1px;border-style:solid;border-left-color: rgb(0, 0, 0); border-top-color: rgb(0, 0, 0);}");break; case Qt::Key_U:emit ui->Button_Bb->click();ui->Button_Bb->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);border-width:0px;border-style:solid;color: rgb(0,0,0);}");break; case Qt::Key_J:emit ui->Button_B->click();ui->Button_B->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);selection-color: rgb(255, 255, 255);padding-top: 60%; border-width:1px;border-style:solid;border-left-color: rgb(0, 0, 0); border-top-color: rgb(0, 0, 0);}");break; case Qt::Key_K:emit ui->Button_C_3->click();ui->Button_C_3->setStyleSheet("QPushButton{background-color: rgb(255, 255, 255);selectio