init study Qt

2025-08-24 11:10:27 +08:00
commit c3e374c375
9 changed files with 417 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,73 @@
+# 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
+
--- a/main.cpp
+++ b/main.cpp
@@ -0,0 +1,11 @@
+#include "widget.h"
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    Widget w;
+    w.show();
+    return a.exec();
+}
--- a/qperson.cpp
+++ b/qperson.cpp
@@ -0,0 +1,23 @@
+#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);
+}
--- a/qperson.h
+++ b/qperson.h
@@ -0,0 +1,33 @@
+#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
--- a/studyQt2.pro
+++ b/studyQt2.pro
@@ -0,0 +1,36 @@
+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
--- a/studyQt2_zh_CN.ts
+++ b/studyQt2_zh_CN.ts
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="studyQt2_zh_CN"></TS>
--- a/widget.cpp
+++ b/widget.cpp
@@ -0,0 +1,100 @@
+#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()));
+    }
+}
--- a/widget.h
+++ b/widget.h
@@ -0,0 +1,34 @@
+#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
--- a/widget.ui
+++ b/widget.ui
@@ -0,0 +1,104 @@
+<?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>