push_button.h

/*
	最大化 最小化 关闭按钮
*/

#ifndef SYSTEMBUTTON_H
#define SYSTEMBUTTON_H

#include <QPushButton>
#include <QPainter>
#include <QMouseEvent>

class PushButton : public QPushButton
{
	Q_OBJECT

public:

	explicit PushButton(QWidget *parent = 0);
	~PushButton();
	void setPicName(QString pic_name);

protected:

	void enterEvent(QEvent *);
	void leaveEvent(QEvent *);
	void mousePressEvent(QMouseEvent *event);
	void mouseReleaseEvent(QMouseEvent *event);
	void paintEvent(QPaintEvent *);

private:

	//枚举按钮的几种状态
	enum ButtonStatus{NORMAL, ENTER, PRESS, NOSTATUS};
	ButtonStatus status;
	QString pic_name;

	int btn_width; //按钮宽度
	int btn_height; //按钮高度
	bool mouse_press; //按钮左键是否按下
};

#endif //SYSTEMBUTTON_H