Qt rensyu

#include "mainwindow.h"
#include "ui_mainwindow.h"

#include
#include
#include
#include

MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);
connect(ui->pushButton, SIGNAL(clicked()), this, SLOT(testFunc1()));

connect(ui->radioButton, SIGNAL(clicked()), this, SLOT(testFunc2()));
connect(ui->radioButton_2, SIGNAL(clicked()), this, SLOT(testFunc2()));

connect(ui->pushButton_2, SIGNAL(clicked()), this, SLOT(testFunc3()));

connect(ui->pushButton_3, SIGNAL(clicked()), this, SLOT(testFunc4()));

}

MainWindow::~MainWindow()
{
delete ui;
}

void MainWindow::testFunc1()
{
QString text = ui->textEdit->toPlainText();

qDebug("aaa");
ui->label->setText(text);

}

void MainWindow::testFunc2()
{
qDebug("aaa");
bool female = ui->radioButton_2->isChecked();
ui->label_2->setText(female ? "女性が選択されました" : "男性が選択されました");
ui->label_2->setStyleSheet(female ? "color: red" : "color: blue");
}

void MainWindow::testFunc3()
{
str.setNum(num);
ui->label_3->setText(str);
qDebug("aaa");
num++;
}

void MainWindow::testFunc4()
{
QGraphicsScene* scene = new QGraphicsScene(this); // newして保持する
QImage image("C:/tmp/hoge.png");

QGraphicsPixmapItem* image_item = new QGraphicsPixmapItem(QPixmap::fromImage(image));
scene->addItem(image_item);

ui->graphicsView_2->setScene(scene);
ui->graphicsView_2->fitInView(image_item, Qt::KeepAspectRatio);

}

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include

QT_BEGIN_NAMESPACE
namespace Ui {
class MainWindow;
}
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
Q_OBJECT

public:
MainWindow(QWidget *parent = nullptr);
~MainWindow();

public slots:
void testFunc1();
void testFunc2();
void testFunc3();
void testFunc4();

private:
Ui::MainWindow *ui;
QString str = "0";
int num = 0;
};
#endif // MAINWINDOW_H