├── Plugins
    ├── StylePlugin
    │   ├── plugin
    │   │   ├── simple_style.json
    │   │   ├── simple_style.h
    │   │   ├── plugin.pro
    │   │   └── style_plugin.h
    │   ├── style_plugin.pro
    │   └── app
    │   │   ├── app.pro
    │   │   └── main.cpp
    └── PersonPlugin
    │   ├── person_plugin.pro
    │   ├── plugin
    │       ├── programmer.json
    │       ├── programmer.cpp
    │       ├── plugin.pro
    │       ├── person.h
    │       └── programmer.h
    │   └── app
    │       ├── app.pro
    │       └── main.cpp
├── README.md
├── .gitignore
└── LICENSE


/Plugins/StylePlugin/plugin/simple_style.json:
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1 | {
2 |     "Keys": [ "simplestyle" ]
3 | }
4 | 


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/Plugins/StylePlugin/style_plugin.pro:
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1 | TEMPLATE = subdirs
2 | CONFIG += ordered
3 | SUBDIRS = \
4 |           plugin \
5 |           app
6 | 


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/Plugins/PersonPlugin/person_plugin.pro:
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1 | TEMPLATE = subdirs
2 | CONFIG += ordered
3 | SUBDIRS = \
4 |           plugin \
5 |           app
6 | 


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/Plugins/PersonPlugin/plugin/programmer.json:
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1 | {
2 |     "author" : "Waleon",
3 |     "date" : "2017/09/01",
4 |     "name" : "personPlugin",
5 |     "version" : "1.0.0",
6 |     "dependencies" : []
7 | }
8 | 


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/Plugins/StylePlugin/app/app.pro:
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 1 | QT += widgets
 2 | SOURCES += main.cpp
 3 | TARGET = app
 4 | 
 5 | win32 {
 6 |     debug:DESTDIR = ../debug/
 7 |     release:DESTDIR = ../release/
 8 | } else {
 9 |     DESTDIR = ../
10 | }
11 | 


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/README.md:
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 1 | # Qt
 2 | 
 3 | Qt 示例程序
 4 | 
 5 | 
 6 | # 更多精彩
 7 | 
 8 | - 个人博客：[一去、二三里](https://waleon.blog.csdn.net/ "一去、二三里")
 9 | - 微信号：iwaleon
10 | - 微信公众号：高效程序员
11 | 
12 | ![微信公众号](https://raw.githubusercontent.com/Waleon/DesignPatterns/master/assets/qrcode.jpg)
13 | 
14 | 更多干货，请扫码关注微信公众号，不要太惊喜哦~
15 | 


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/Plugins/PersonPlugin/app/app.pro:
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 1 | QT += core
 2 | QT -= gui
 3 | 
 4 | CONFIG += c++11
 5 | 
 6 | TARGET = app
 7 | CONFIG += console
 8 | TEMPLATE = app
 9 | 
10 | INCLUDEPATH += $$PWD/..
11 | 
12 | SOURCES += main.cpp
13 | 
14 | win32 {
15 |     debug:DESTDIR = ../debug/
16 |     release:DESTDIR = ../release/
17 | } else {
18 |     DESTDIR = ../
19 | }
20 | 


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/Plugins/PersonPlugin/plugin/programmer.cpp:
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 1 | #include "programmer.h"
 2 | #include <QtDebug>
 3 | 
 4 | QString Programmer::name()
 5 | {
 6 |     return "Pony";
 7 | }
 8 | 
 9 | void Programmer::eat()
10 | {
11 |     qDebug() << "Pizza";
12 | }
13 | 
14 | void Programmer::sleep()
15 | {
16 |     qDebug() << "6 hours";
17 | }
18 | 
19 | void Programmer::doSomething()
20 | {
21 |     qDebug() << "Coding...";
22 | }
23 | 


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/Plugins/StylePlugin/plugin/simple_style.h:
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 1 | #ifndef SIMPLE_STYLE_H
 2 | #define SIMPLE_STYLE_H
 3 | 
 4 | #include <QProxyStyle>
 5 | 
 6 | class SimpleStyle : public QProxyStyle
 7 | {
 8 |     Q_OBJECT
 9 | 
10 | public:
11 |     SimpleStyle() {}
12 | 
13 |     void polish(QPalette &palette) override
14 |     {
15 |         palette.setBrush(QPalette::ButtonText, Qt::blue);
16 |     }
17 | };
18 | 
19 | #endif // SIMPLE_STYLE_H
20 | 


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/.gitignore:
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 1 | # Prerequisites
 2 | *.d
 3 | 
 4 | # Compiled Object files
 5 | *.slo
 6 | *.lo
 7 | *.o
 8 | *.obj
 9 | 
10 | # Precompiled Headers
11 | *.gch
12 | *.pch
13 | 
14 | # Compiled Dynamic libraries
15 | *.so
16 | *.dylib
17 | *.dll
18 | 
19 | # Fortran module files
20 | *.mod
21 | *.smod
22 | 
23 | # Compiled Static libraries
24 | *.lai
25 | *.la
26 | *.a
27 | *.lib
28 | 
29 | # Executables
30 | *.exe
31 | *.out
32 | *.app
33 | 


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/Plugins/StylePlugin/plugin/plugin.pro:
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 1 | QT += widgets
 2 | TEMPLATE = lib
 3 | CONFIG += plugin
 4 | TARGET = stylePlugin
 5 | 
 6 | HEADERS += \
 7 |     simple_style.h \
 8 |     style_plugin.h
 9 | 
10 | OTHER_FILES += simple_style.json
11 | 
12 | win32 {
13 |     CONFIG(debug, release|debug):DESTDIR = ../debug/styles/
14 |     CONFIG(release, release|debug):DESTDIR = ../release/styles/
15 | } else {
16 |     DESTDIR = ../styles/
17 | }
18 | 


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/Plugins/PersonPlugin/plugin/plugin.pro:
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 1 | QT += core
 2 | QT -= gui
 3 | 
 4 | TEMPLATE = lib
 5 | CONFIG += plugin
 6 | TARGET = personPlugin
 7 | 
 8 | HEADERS += \
 9 |     person.h \
10 |     programmer.h
11 | 
12 | SOURCES += programmer.cpp
13 | 
14 | OTHER_FILES += programmer.json
15 | 
16 | win32 {
17 |     CONFIG(debug, release|debug):DESTDIR = ../debug/plugins/
18 |     CONFIG(release, release|debug):DESTDIR = ../release/plugins/
19 | } else {
20 |     DESTDIR = ../plugins/
21 | }
22 | 


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/Plugins/StylePlugin/app/main.cpp:
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 1 | #include <QApplication>
 2 | #include <QPushButton>
 3 | #include <QStyleFactory>
 4 | #include <qDebug>
 5 | 
 6 | int main(int argv, char *args[])
 7 | {
 8 |     QApplication app(argv, args);
 9 | 
10 |     // 设置样式
11 |     qDebug() << QStyleFactory::keys();
12 |     QApplication::setStyle(QStyleFactory::create("simplestyle"));
13 | 
14 |     QPushButton button("Blue Button");
15 |     button.resize(300, 100);
16 |     button.show();
17 | 
18 |     return app.exec();
19 | }
20 | 


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/Plugins/PersonPlugin/plugin/person.h:
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 1 | #ifndef PERSON_H
 2 | #define PERSON_H
 3 | 
 4 | #include <QtPlugin>
 5 | #include <QString>
 6 | 
 7 | class IPerson
 8 | {
 9 | public:
10 |     virtual ~IPerson() {}
11 |     virtual QString name() = 0;  // 人有名字
12 |     virtual void eat() = 0;  // 人需要吃东西
13 |     virtual void sleep() = 0;  // 人需要睡觉
14 |     virtual void doSomething() = 0;  // 人还需要干其他事
15 | };
16 | 
17 | #define IPerson_iid "org.qt-project.Qt.Examples.IPerson"
18 | 
19 | Q_DECLARE_INTERFACE(IPerson, IPerson_iid)
20 | 
21 | #endif // PERSON_H
22 | 


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/Plugins/PersonPlugin/plugin/programmer.h:
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 1 | #ifndef PROGRAMMER_H
 2 | #define PROGRAMMER_H
 3 | 
 4 | #include "person.h"
 5 | #include <QObject>
 6 | 
 7 | class Programmer : public QObject, IPerson
 8 | {
 9 |     Q_OBJECT
10 |     Q_PLUGIN_METADATA(IID IPerson_iid FILE "programmer.json")
11 |     Q_INTERFACES(IPerson)
12 | 
13 | public:
14 |     virtual QString name() Q_DECL_OVERRIDE;
15 |     virtual void eat() Q_DECL_OVERRIDE;
16 |     virtual void sleep() Q_DECL_OVERRIDE;
17 |     virtual void doSomething() Q_DECL_OVERRIDE;
18 | };
19 | 
20 | #endif // PROGRAMMER_H
21 | 


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/Plugins/StylePlugin/plugin/style_plugin.h:
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 1 | #ifndef STYLE_PLUGIN_H
 2 | #define STYLE_PLUGIN_H
 3 | 
 4 | #include <QStylePlugin>
 5 | #include "simple_style.h"
 6 | 
 7 | class StylePlugin : public QStylePlugin
 8 | {
 9 |     Q_OBJECT
10 |     Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QStyleFactoryInterface" FILE "simple_style.json")
11 | 
12 | public:
13 |     StylePlugin() {}
14 | 
15 |     QStyle *create(const QString &key) override
16 |     {
17 |         if (key.toLower() == "simplestyle")
18 |             return new SimpleStyle();
19 | 
20 |         return Q_NULLPTR;
21 |     }
22 | };
23 | 
24 | #endif // STYLE_PLUGIN_H
25 | 


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/LICENSE:
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 1 | MIT License
 2 | 
 3 | Copyright (c) 2017 一去丶二三里
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/Plugins/PersonPlugin/app/main.cpp:
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 1 | #include <QCoreApplication>
 2 | #include <QPluginLoader>
 3 | #include <QDir>
 4 | #include <QtDebug>
 5 | #include <QJsonObject>
 6 | #include <QJsonArray>
 7 | #include <plugin/person.h>
 8 | 
 9 | void loadPlugin()
10 | {
11 |     // 进入插件目录
12 |     QDir pluginsDir(qApp->applicationDirPath());
13 |     pluginsDir.cd("plugins");
14 |     // 查找目录中的所有插件
15 |     foreach (QString fileName, pluginsDir.entryList(QDir::Files)) {
16 |         QPluginLoader loader(pluginsDir.absoluteFilePath(fileName));
17 |         // 返回插件的根组件对象
18 |         QObject *pPlugin = loader.instance();
19 |         if (pPlugin != Q_NULLPTR) {
20 | 
21 |             // 获取元数据（名称、版本、依赖）
22 |             QJsonObject json = loader.metaData().value("MetaData").toObject();
23 |             qDebug() << "********** MetaData **********";
24 |             qDebug() << json.value("author").toVariant();
25 |             qDebug() << json.value("date").toVariant();
26 |             qDebug() << json.value("name").toVariant();
27 |             qDebug() << json.value("version").toVariant();
28 |             qDebug() << json.value("dependencies").toArray().toVariantList();
29 | 
30 |             // 访问感兴趣的接口
31 |             IPerson *pPerson = qobject_cast<IPerson *>(pPlugin);
32 |             if (pPerson != Q_NULLPTR) {
33 |                 qDebug() << "********** IPerson **********";
34 |                 qDebug() << pPerson->name();
35 |                 pPerson->eat();
36 |                 pPerson->sleep();
37 |                 pPerson->doSomething();
38 |             } else {
39 |                 qWarning() << "qobject_cast falied";
40 |             }
41 |         }
42 |     }
43 | }
44 | 
45 | int main(int argc, char *argv[])
46 | {
47 |     QCoreApplication a(argc, argv);
48 | 
49 |     loadPlugin();
50 | 
51 |     return a.exec();
52 | }
53 | 


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