QT) Mouse 움직임 나타내기

mouse.h

#ifndef MOUSE_H

#define MOUSE_H

#include <QMainWindow>

#include <QGraphicsScene>

#include <QBrush>

#include <QPixmap>

#include <QImage>

#include <QGraphicsEllipseItem>

namespace Ui {

class mouse;

}

class mouse : public QMainWindow

{

    Q_OBJECT

public:

    explicit mouse(QWidget *parent = 0);

    ~mouse();

private slots:

    void Mouse_current_pos();

    void Mouse_Pressed();

    void Mouse_left();

private:

    Ui::mouse *ui;

    QGraphicsScene *scene;

    int x,y;

};

#endif // MOUSE_H

mouse.cpp

#include "mouse.h"

#include "ui_mouse.h"

#include "my_qlabel.h"

#include <QGraphicsEllipseItem>

#include <QtWidgets>

#include <QPropertyAnimation>

#include <QBrush>

#include <QPen>

#include <math.h>

mouse::mouse(QWidget *parent) :

    QMainWindow(parent),

    ui(new Ui::mouse)

{

    ui->setupUi(this);

    connect(ui->mouse_label,SIGNAL(Mouse_Pos()), this, SLOT(Mouse_current_pos()));

    connect(ui->mouse_label,SIGNAL(Mouse_Pressed()),this,SLOT(Mouse_Pressed()));

    connect(ui->mouse_label,SIGNAL(Mouse_Left()),this,SLOT(Mouse_current_pos()));

}

mouse::~mouse()

{

    delete ui;

}

void mouse::Mouse_current_pos()

{

    ui->Mouse_current->setText(QString("X = %1, Y = %2").arg(ui->mouse_label->x)

                               .arg(ui->mouse_label->y));

    ui->Mouse_current_event->setText("Mouse Moving!");

}

void mouse::Mouse_Pressed()

{

    ui->Mouse_current_event->setText("Mouse Pressed!");

}

void mouse::Mouse_left()

{

    ui->Mouse_current_event->setText("Mouse Left!");

}

main.cpp

#include "mouse.h"

#include <QApplication>

int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    mouse w;

    w.show();

    return a.exec();

}

+추가적으로

my_qlabel.cpp 

#include "my_qlabel.h"

my_qlabel::my_qlabel(QWidget *parent) :

    QLabel(parent)

{

}

void my_qlabel :: mouseMoveEvent(QMouseEvent *ev)

{

    this->x = ev->x();

    this->y = ev->y();

    emit Mouse_Pos();

}

void my_qlabel::mousePressEvent(QMouseEvent *ev)

{

    emit Mouse_Pressed();

}

void my_qlabel::leaveEvent(QEvent *)

{

    emit Mouse_Left();

}

my_qlabel.h

#ifndef MY_QLABEL_H

#define MY_QLABEL_H

#include <QLabel>

#include <QMouseEvent>

#include <QDebug>

class my_qlabel : public QLabel

{

    Q_OBJECT

public:

    explicit my_qlabel(QWidget *parent = 0);

    void mouseMoveEvent(QMouseEvent *ev);

    void mousePressEvent(QMouseEvent *ev);

    void leaveEvent(QEvent *);

    int x,y;

signals:

    void Mouse_Pressed();

    void Mouse_Pos();

    void Mouse_Left();

public slots:

};

#endif // MY_QLABEL_H