signals_slots.h

嵌入式LINUX下的自定义信号和槽、树型结构的内存管理、网格布局管理、动态改变语言的代码。

#ifndef SIGNALS_SLOTS_H
#define SIGNALS_SLOTS_H

#include <QObject>

class Receiver : public QObject
{
    Q_OBJECT

public:
    Receiver(QObject *parent=0) : QObject(parent)
    {
    }

public slots:
    void printNumber(int n);
};

class Mediator : public QObject
{
    Q_OBJECT

public:
    Mediator(QObject *parent=0) : QObject(parent)
    {
    }

    void doSend();

signals:
    void send(int);
};

class Sender : public QObject
{
    Q_OBJECT

public:
    Sender(QObject *parent=0) : QObject(parent)
    {
    }

    void doTransmit();

signals:
    void transmit(int);
};

#endif // SIGNALS_SLOTS_H