377af876bd
MeatObjectSystem(元对象系统)、Propert(属性和动态属性)和Q_CLASSINFO()(附加信息宏)的介绍和使用
55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/*
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* Copyright 2019 xmulitech@gmail.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef EXPERSON_H
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#define EXPERSON_H
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#include <QObject>
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class ExPerson : public QObject
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{
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Q_OBJECT
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//类的附加信息:名称————值
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Q_CLASSINFO("author", "touwoyimuli")
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Q_CLASSINFO("version", "1.0.0")
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Q_CLASSINFO("info", "Qt5 Meta Object and Property Example")
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//属性定义
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Q_PROPERTY(int age READ getAge WRITE setAge NOTIFY ageChanged) //属性age; 方法getAge()和setAge()对其读写; 设置信号ageChanged()
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Q_PROPERTY(QString name MEMBER m_name) //属性name 与类成员变量m_name关联
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Q_PROPERTY(int score MEMBER m_score) //属性score与类成员变量m_score关联
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public:
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explicit ExPerson(QString name, QObject *parent = nullptr);
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public:
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int getAge(); //属性 READ 函数
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void setAge(int value); //属性 WRITE 函数
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void incAge(); //单独写一个接口,与属性无关
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signals:
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void ageChanged(int value); //属性age发生改变的信号函数
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private:
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int m_age = 5;
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QString m_name;
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int m_score = 50;
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};
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#endif // EXPERSON_H
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