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init study Qt

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cs180
2025-08-24 11:10:27 +08:00
commit c3e374c375
9 changed files with 417 additions and 0 deletions
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73
.gitignore vendored Normal file
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# This file is used to ignore files which are generated
# ----------------------------------------------------------------------------
*~
*.autosave
*.a
*.core
*.moc
*.o
*.obj
*.orig
*.rej
*.so
*.so.*
*_pch.h.cpp
*_resource.rc
*.qm
.#*
*.*#
core
!core/
tags
.DS_Store
.directory
*.debug
Makefile*
*.prl
*.app
moc_*.cpp
ui_*.h
qrc_*.cpp
Thumbs.db
*.res
*.rc
/.qmake.cache
/.qmake.stash
# qtcreator generated files
*.pro.user*
# xemacs temporary files
*.flc
# Vim temporary files
.*.swp
# Visual Studio generated files
*.ib_pdb_index
*.idb
*.ilk
*.pdb
*.sln
*.suo
*.vcproj
*vcproj.*.*.user
*.ncb
*.sdf
*.opensdf
*.vcxproj
*vcxproj.*
# MinGW generated files
*.Debug
*.Release
# Python byte code
*.pyc
# Binaries
# --------
*.dll
*.exe

11
main.cpp Normal file
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#include "widget.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
Widget w;
w.show();
return a.exec();
}

23
qperson.cpp Normal file
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#include "qperson.h"
QPerson::QPerson(QString fName, QObject *parent) : QObject(parent), m_name(fName)
{
}
int QPerson::age()
{
return m_age;
}
void QPerson::setAge(int val)
{
m_age = val;
emit ageChanged(m_age);
}
void QPerson::incAge()
{
m_age++;
emit ageChanged(m_age);
}

33
qperson.h Normal file
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#ifndef QPERSION_H
#define QPERSION_H
#include <QObject>
class QPerson : public QObject
{
Q_OBJECT
Q_CLASSINFO("author", "Ding")
Q_CLASSINFO("company", "UPC")
Q_CLASSINFO("version", "1.0.0")
Q_PROPERTY(int age READ age WRITE setAge NOTIFY ageChanged)
Q_PROPERTY(QString name MEMBER m_name)
Q_PROPERTY(int score MEMBER m_score)
private:
int m_age=10;
QString m_name;
int m_score=60;
public:
explicit QPerson(QString fName, QObject *parent = nullptr);
int age();
void setAge(int val);
void incAge();
signals:
void ageChanged(int val);
public slots:
};
#endif // QPERSON_H

36
studyQt2.pro Normal file
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QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
CONFIG += c++11
# The following define makes your compiler emit warnings if you use
# any Qt feature that has been marked 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 it uses 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
SOURCES += \
main.cpp \
qperson.cpp \
widget.cpp
HEADERS += \
qperson.h \
widget.h
FORMS += \
widget.ui
TRANSLATIONS += \
studyQt2_zh_CN.ts
# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

3
studyQt2_zh_CN.ts Normal file
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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE TS>
<TS version="2.1" language="studyQt2_zh_CN"></TS>

100
widget.cpp Normal file
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#include "widget.h"
#include "ui_widget.h"
#include "qperson.h"
#include "QMetaProperty"
Widget::Widget(QWidget *parent)
: QWidget(parent)
, ui(new Ui::Widget)
{
ui->setupUi(this);
boy = new QPerson("南街");
boy->setProperty("score", 99);
boy->setProperty("age", 10);
boy->setProperty("sex", "Boy"); //动态属性
ui->spinBoy->setValue(10);
connect(boy, &QPerson::ageChanged, this, &Widget::on_ageChanged);
girl = new QPerson("小丽");
girl->setProperty("score", 66);
girl->setProperty("age", 6);
girl->setProperty("sex", "Girl"); //动态属性
ui->spinGirl->setValue(6);
connect(girl, &QPerson::ageChanged, this, &Widget::on_ageChanged);
ui->spinBoy->setProperty("isBoy", true); // ui动态属性
ui->spinGirl->setProperty("isBoy", false);
connect(ui->spinBoy, SIGNAL(valueChanged(int)),
this, SLOT(on_spin_valueChanged(int)));
connect(ui->spinGirl, SIGNAL(valueChanged(int)),
this, SLOT(on_spin_valueChanged(int)));
}
Widget::~Widget()
{
delete ui;
}
void Widget::on_ageChanged(int val)
{
Q_UNUSED(val)
QPerson *aPerson = qobject_cast<QPerson*>(sender());
QString hisName = aPerson->property("name").toString();
QString hisSex = aPerson->property("sex").toString();
int hisAge = aPerson->age();
hisAge = aPerson->property("age").toInt();
ui->textEdit->append(hisName + ", " + hisSex + QString::asprintf(", 年龄=%d", hisAge));
}
void Widget::on_spin_valueChanged(int arg1)
{
Q_UNUSED(arg1)
auto spinBox = qobject_cast<QSpinBox*>(sender());
if(spinBox->property("isBoy").toBool())
{
boy->setAge(arg1);
}
else
{
girl->setAge(spinBox->value());
}
}
void Widget::on_btnClear_clicked()
{
ui->textEdit->clear();
}
void Widget::on_btnBoyInc_clicked()
{
int val = ui->spinBoy->value();
ui->spinBoy->setValue(++val);
}
void Widget::on_btnGirlInc_clicked()
{
int val = ui->spinGirl->value();
ui->spinGirl->setValue(++val);
}
void Widget::on_btnClassInfo_clicked()
{
const QMetaObject* meta=boy->metaObject();
ui->textEdit->clear();
ui->textEdit->append("==元对象信息==\n");
ui->textEdit->append(
QString("类名: %1\n").arg(meta->className()));
ui->textEdit->append("properties:\n");
for (int i= meta->propertyOffset(); i < meta->propertyCount(); ++i)
{
QMetaProperty prop = meta->property(i);
auto propName = prop.name();
auto propVal = boy->property(propName).toString();
ui->textEdit->append(
QString("属性名=%1，属性值=%2").arg(propName).arg(propVal));
}
ui->textEdit->append("");
ui->textEdit->append("classInfo");
for (int i= meta->classInfoOffset(); i< meta->classInfoCount(); ++i)
{
QMetaClassInfo classInfo = meta->classInfo(i);
ui->textEdit->append(QString("Name=%1; Value=%2").arg(classInfo.name()).arg(classInfo.value()));
}
}

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widget.h Normal file
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#ifndef WIDGET_H
#define WIDGET_H
#include <QWidget>
class QPerson;
QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE
class Widget : public QWidget
{
Q_OBJECT
public:
explicit Widget(QWidget *parent = nullptr);
~Widget();
private:
Ui::Widget *ui;
QPerson * boy;
QPerson *girl;
private slots:
void on_ageChanged(int val);
void on_spin_valueChanged(int arg1);
void on_btnClear_clicked();
void on_btnBoyInc_clicked();
void on_btnGirlInc_clicked();
void on_btnClassInfo_clicked();
};
#endif // WIDGET_H

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<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>Widget</class>
<widget class="QWidget" name="Widget">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>800</width>
<height>600</height>
</rect>
</property>
<property name="windowTitle">
<string>Widget</string>
</property>
<layout class="QGridLayout" name="gridLayout">
<item row="0" column="3">
<widget class="QPushButton" name="btnBoyInc">
<property name="text">
<string>boy长大一岁</string>
</property>
</widget>
</item>
<item row="1" column="4">
<widget class="QPushButton" name="btnClear">
<property name="text">
<string>清空文本框</string>
</property>
</widget>
</item>
<item row="2" column="0" colspan="5">
<widget class="QTextEdit" name="textEdit"/>
</item>
<item row="0" column="0">
<widget class="QLabel" name="label">
<property name="text">
<string>设置男生年龄</string>
</property>
<property name="buddy">
<cstring>spinBoy</cstring>
</property>
</widget>
</item>
<item row="1" column="3">
<widget class="QPushButton" name="btnGirlInc">
<property name="text">
<string>girl长大一岁</string>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label_2">
<property name="text">
<string>设置女生年龄</string>
</property>
<property name="buddy">
<cstring>spinGirl</cstring>
</property>
</widget>
</item>
<item row="0" column="4">
<widget class="QPushButton" name="btnClassInfo">
<property name="text">
<string>类的元对象信息</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QSpinBox" name="spinBoy"/>
</item>
<item row="1" column="1">
<widget class="QSpinBox" name="spinGirl"/>
</item>
<item row="0" column="2">
<spacer name="horizontalSpacer">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item row="1" column="2">
<spacer name="horizontalSpacer_2">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
</layout>
</widget>
<resources/>
<connections/>
</ui>