QtMeatObjectEx
Qt MeatObject Example
This commit is contained in:
touwoyimuli@gmail.com
parent
28a4a6f1bf
commit
20faa16653
29
QtMeatObjectEx/ExPerson.cpp
Normal file
29
QtMeatObjectEx/ExPerson.cpp
Normal file
@ -0,0 +1,29 @@
|
||||
#include "ExPerson.h"
|
||||
|
||||
//加一个参后的构造函数
|
||||
ExPerson::ExPerson(QString name, QObject *parent) : QObject(parent)
|
||||
{
|
||||
m_name = name;
|
||||
}
|
||||
|
||||
int ExPerson::getAge()
|
||||
{
|
||||
return m_age;
|
||||
}
|
||||
|
||||
void ExPerson::setAge(int value)
|
||||
{
|
||||
m_age = value;
|
||||
emit ageChanged(m_age); //发射信号
|
||||
}
|
||||
|
||||
void ExPerson::incAge()
|
||||
{
|
||||
m_age++;
|
||||
emit ageChanged(m_age); //发射信号
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
39
QtMeatObjectEx/ExPerson.h
Normal file
39
QtMeatObjectEx/ExPerson.h
Normal file
@ -0,0 +1,39 @@
|
||||
#ifndef EXPERSON_H
|
||||
#define EXPERSON_H
|
||||
|
||||
#include <QObject>
|
||||
|
||||
class ExPerson : public QObject
|
||||
{
|
||||
Q_OBJECT
|
||||
|
||||
//类的附加信息：名称————值
|
||||
Q_CLASSINFO("author", "touwoyimuli")
|
||||
Q_CLASSINFO("version", "1.0.0")
|
||||
Q_CLASSINFO("info", "Qt5 Meta Object and Property Example")
|
||||
|
||||
//属性定义
|
||||
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()
|
||||
Q_PROPERTY(QString name MEMBER m_name) //属性name 与类成员变量m_name关联
|
||||
Q_PROPERTY(int score MEMBER m_score) //属性score与类成员变量m_score关联
|
||||
|
||||
public:
|
||||
explicit ExPerson(QString name, QObject *parent = nullptr);
|
||||
|
||||
public:
|
||||
int getAge(); //属性 READ 函数
|
||||
void setAge(int value); //属性 WRITE 函数
|
||||
|
||||
void incAge(); //单独写一个接口，与属性无关
|
||||
|
||||
signals:
|
||||
void ageChanged(int value); //属性age发生改变的信号函数
|
||||
|
||||
private:
|
||||
int m_age = 5;
|
||||
QString m_name;
|
||||
int m_score = 50;
|
||||
|
||||
};
|
||||
|
||||
#endif // EXPERSON_H
|
||||
106
QtMeatObjectEx/ExWidget.cpp
Normal file
106
QtMeatObjectEx/ExWidget.cpp
Normal file
@ -0,0 +1,106 @@
|
||||
#include "ExWidget.h"
|
||||
#include "ui_ExWidget.h"
|
||||
#include <QMetaProperty>
|
||||
#include <QDebug>
|
||||
|
||||
ExWidget::ExWidget(QWidget *parent) : QWidget(parent), ui(new Ui::ExWidget)
|
||||
{
|
||||
ui->setupUi(this);
|
||||
|
||||
m_boy = new ExPerson("张三");
|
||||
m_boy->setProperty("score", 90);
|
||||
m_boy->setProperty("age", 20);
|
||||
m_boy->setProperty("sex", "Boy"); //动态属性
|
||||
connect(m_boy, &ExPerson::ageChanged, this, &ExWidget::onAgeChange);
|
||||
|
||||
m_girl = new ExPerson("张丽");
|
||||
m_girl->setProperty("score", 80);
|
||||
m_girl->setProperty("age", 10);
|
||||
m_girl->setProperty("sex", "Gril"); //动态属性
|
||||
connect(m_girl, &ExPerson::ageChanged, this, &ExWidget::onAgeChange);
|
||||
|
||||
ui->spinBoy->setProperty("isBoy", true); //动态属性
|
||||
ui->spinGril->setProperty("isBoy", false);
|
||||
|
||||
connect(ui->spinGril, SIGNAL(valueChanged(int)), this, SLOT(onSpinValChange(int)));
|
||||
connect(ui->spinBoy, SIGNAL(valueChanged(int)), this, SLOT(onSpinValChange(int)));
|
||||
|
||||
connect(ui->btnBoyAdd, SIGNAL(clicked()), this, SLOT(onBtnBoyInc()));
|
||||
connect(ui->btnGrilAdd, SIGNAL(clicked()), this, SLOT(onBtnGrilInc()));
|
||||
connect(ui->btnMetaObject, SIGNAL(clicked()), this, SLOT(onClassInfo()));
|
||||
connect(ui->btnClean, SIGNAL(clicked()), this, SLOT(onBtnClear()));
|
||||
|
||||
setWindowTitle(QObject::tr("元对象MetaObject和(含动态)属性Propert的用法"));
|
||||
}
|
||||
|
||||
ExWidget::~ExWidget()
|
||||
{
|
||||
delete ui;
|
||||
}
|
||||
|
||||
void ExWidget::onAgeChange(int val)
|
||||
{
|
||||
Q_UNUSED(val) //参数val没使用，避免警告
|
||||
|
||||
ExPerson* person = qobject_cast<ExPerson *>(sender()); //类型投射
|
||||
QString name = person->property("name").toString();
|
||||
QString sex = person->property("sex").toString();
|
||||
int age = person->getAge(); //通过接口函数，获得年龄
|
||||
//或使用 int age = person->property("age").toInt();
|
||||
ui->textEdit->appendPlainText(name+","+sex + QString::asprintf(",年龄=%d",age));
|
||||
}
|
||||
|
||||
void ExWidget::onSpinValChange(int val)
|
||||
{
|
||||
Q_UNUSED(val)
|
||||
|
||||
QSpinBox* spin = qobject_cast<QSpinBox *>(sender()); //类型投射
|
||||
if (spin->property("isBoy").toBool())
|
||||
m_boy->setAge(ui->spinBoy->value());
|
||||
else
|
||||
m_girl->setAge(ui->spinGril->value());
|
||||
}
|
||||
|
||||
void ExWidget::onBtnClear()
|
||||
{
|
||||
ui->textEdit->clear();
|
||||
}
|
||||
|
||||
void ExWidget::onBtnBoyInc()
|
||||
{
|
||||
m_boy->incAge();
|
||||
}
|
||||
|
||||
void ExWidget::onBtnGrilInc()
|
||||
{
|
||||
m_girl->incAge();
|
||||
}
|
||||
|
||||
void ExWidget::onClassInfo()
|
||||
{
|
||||
const QMetaObject* meta = m_boy->metaObject();
|
||||
|
||||
ui->textEdit->clear();
|
||||
ui->textEdit->appendPlainText("==元对象信息(Meta Object)===");
|
||||
ui->textEdit->appendPlainText(QString("类名称: %1\n").arg(meta->className()));
|
||||
ui->textEdit->appendPlainText("属性(property)");
|
||||
|
||||
for (int i = meta->propertyOffset(); i < meta->propertyCount(); i++)
|
||||
{
|
||||
QMetaProperty prop = meta->property(i);
|
||||
const char* propName = prop.name();
|
||||
QString propValue = m_boy->property(propName).toString();
|
||||
ui->textEdit->appendPlainText(QString("属性名称=%1， 属性值= %2").arg(propName).arg(propValue));
|
||||
}
|
||||
|
||||
ui->textEdit->appendPlainText("");
|
||||
ui->textEdit->appendPlainText("classInfo:");
|
||||
for (int i = meta->classInfoOffset(); i < meta->classInfoCount(); i++)
|
||||
{
|
||||
QMetaClassInfo classInfo = meta->classInfo(i);
|
||||
ui->textEdit->appendPlainText(QString("Name=%1， Value= %2").arg(classInfo.name()).arg(classInfo.value()));
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
35
QtMeatObjectEx/ExWidget.h
Normal file
35
QtMeatObjectEx/ExWidget.h
Normal file
@ -0,0 +1,35 @@
|
||||
#ifndef EXWIDGET_H
|
||||
#define EXWIDGET_H
|
||||
|
||||
#include <QWidget>
|
||||
#include "ExPerson.h"
|
||||
|
||||
namespace Ui {
|
||||
class ExWidget;
|
||||
}
|
||||
|
||||
class ExWidget : public QWidget
|
||||
{
|
||||
Q_OBJECT
|
||||
|
||||
public:
|
||||
explicit ExWidget(QWidget *parent = nullptr);
|
||||
~ExWidget();
|
||||
|
||||
private slots:
|
||||
void onAgeChange(int val); //自定义的槽函数
|
||||
void onSpinValChange(int val);
|
||||
|
||||
void onBtnClear(); //UI界面的槽函数
|
||||
void onBtnBoyInc();
|
||||
void onBtnGrilInc();
|
||||
void onClassInfo();
|
||||
|
||||
private:
|
||||
Ui::ExWidget *ui;
|
||||
|
||||
ExPerson* m_boy;
|
||||
ExPerson* m_girl;
|
||||
};
|
||||
|
||||
#endif // EXWIDGET_H
|
||||
114
QtMeatObjectEx/ExWidget.ui
Normal file
114
QtMeatObjectEx/ExWidget.ui
Normal file
@ -0,0 +1,114 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<ui version="4.0">
|
||||
<class>ExWidget</class>
|
||||
<widget class="QWidget" name="ExWidget">
|
||||
<property name="geometry">
|
||||
<rect>
|
||||
<x>0</x>
|
||||
<y>0</y>
|
||||
<width>526</width>
|
||||
<height>313</height>
|
||||
</rect>
|
||||
</property>
|
||||
<property name="windowTitle">
|
||||
<string>ExWidget</string>
|
||||
</property>
|
||||
<layout class="QGridLayout" name="gridLayout_2">
|
||||
<item row="0" column="1">
|
||||
<layout class="QGridLayout" name="gridLayout">
|
||||
<item row="0" column="0">
|
||||
<widget class="QLabel" name="labBoy">
|
||||
<property name="text">
|
||||
<string>设置男生的年龄：</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="8" column="0">
|
||||
<spacer name="verticalSpacer">
|
||||
<property name="orientation">
|
||||
<enum>Qt::Vertical</enum>
|
||||
</property>
|
||||
<property name="sizeHint" stdset="0">
|
||||
<size>
|
||||
<width>20</width>
|
||||
<height>40</height>
|
||||
</size>
|
||||
</property>
|
||||
</spacer>
|
||||
</item>
|
||||
<item row="3" column="0">
|
||||
<spacer name="verticalSpacer_2">
|
||||
<property name="orientation">
|
||||
<enum>Qt::Vertical</enum>
|
||||
</property>
|
||||
<property name="sizeType">
|
||||
<enum>QSizePolicy::Fixed</enum>
|
||||
</property>
|
||||
<property name="sizeHint" stdset="0">
|
||||
<size>
|
||||
<width>20</width>
|
||||
<height>20</height>
|
||||
</size>
|
||||
</property>
|
||||
</spacer>
|
||||
</item>
|
||||
<item row="2" column="0">
|
||||
<widget class="QPushButton" name="btnBoyAdd">
|
||||
<property name="text">
|
||||
<string>Boy:Age 增加</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="1" column="0">
|
||||
<widget class="QSpinBox" name="spinBoy">
|
||||
<property name="value">
|
||||
<number>20</number>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="9" column="0">
|
||||
<widget class="QPushButton" name="btnMetaObject">
|
||||
<property name="text">
|
||||
<string>类的元对象信息</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="5" column="0">
|
||||
<widget class="QLabel" name="labGril">
|
||||
<property name="text">
|
||||
<string>设置女生年龄</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="10" column="0">
|
||||
<widget class="QPushButton" name="btnClean">
|
||||
<property name="text">
|
||||
<string>清空文本框</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="7" column="0">
|
||||
<widget class="QPushButton" name="btnGrilAdd">
|
||||
<property name="text">
|
||||
<string>Girl:Age 增加</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="6" column="0">
|
||||
<widget class="QSpinBox" name="spinGril">
|
||||
<property name="value">
|
||||
<number>10</number>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
</layout>
|
||||
</item>
|
||||
<item row="0" column="2">
|
||||
<widget class="QPlainTextEdit" name="textEdit"/>
|
||||
</item>
|
||||
</layout>
|
||||
</widget>
|
||||
<layoutdefault spacing="6" margin="11"/>
|
||||
<resources/>
|
||||
<connections/>
|
||||
</ui>
|
||||
42
QtMeatObjectEx/QtMeatObjectEx.pro
Normal file
42
QtMeatObjectEx/QtMeatObjectEx.pro
Normal file
@ -0,0 +1,42 @@
|
||||
#-------------------------------------------------
|
||||
#
|
||||
# Project created by QtCreator 2019-08-16T20:47:42
|
||||
#
|
||||
#-------------------------------------------------
|
||||
|
||||
QT += core gui
|
||||
|
||||
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
|
||||
|
||||
TARGET = QtMeatObjectEx
|
||||
TEMPLATE = app
|
||||
|
||||
# The following define makes your compiler emit warnings if you use
|
||||
# any feature of Qt which has been marked as deprecated (the exact warnings
|
||||
# depend on your compiler). Please consult the documentation of the
|
||||
# deprecated API in order to know how to port your code away from it.
|
||||
DEFINES += QT_DEPRECATED_WARNINGS
|
||||
|
||||
# You can also make your code fail to compile if you use deprecated APIs.
|
||||
# In order to do so, uncomment the following line.
|
||||
# You can also select to disable deprecated APIs only up to a certain version of Qt.
|
||||
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
|
||||
|
||||
CONFIG += c++11
|
||||
|
||||
SOURCES += \
|
||||
main.cpp \
|
||||
ExWidget.cpp \
|
||||
ExPerson.cpp
|
||||
|
||||
HEADERS += \
|
||||
ExWidget.h \
|
||||
ExPerson.h
|
||||
|
||||
FORMS += \
|
||||
ExWidget.ui
|
||||
|
||||
# Default rules for deployment.
|
||||
qnx: target.path = /tmp/$${TARGET}/bin
|
||||
else: unix:!android: target.path = /opt/$${TARGET}/bin
|
||||
!isEmpty(target.path): INSTALLS += target
|
||||
11
QtMeatObjectEx/main.cpp
Normal file
11
QtMeatObjectEx/main.cpp
Normal file
@ -0,0 +1,11 @@
|
||||
#include "ExWidget.h"
|
||||
#include <QApplication>
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
QApplication a(argc, argv);
|
||||
ExWidget w;
|
||||
w.show();
|
||||
|
||||
return a.exec();
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user