WPF中Caliburn.Micro框架

Caliburn.Micro是一个轻量级的MVVM框架，它可以帮助我们更好地实现WPF应用程序的开发。下面是一些关于Caliburn.Micro框架的介绍和示例：

1.使用Caliburn.Micro实现MEF插件化开发，根据dll插件目录动态加载程序集和主程序的Tab页。

// 在App.xaml.cs中添加以下代码
protected override void OnStartup(StartupEventArgs e)
{
    base.OnStartup(e);

    // 创建插件管理器
    var pluginManager = new PluginManager();

    // 加载插件
    pluginManager.LoadPlugins();

    // 创建主窗口
    var mainWindowViewModel = new MainWindowViewModel(pluginManager);

    // 显示主窗口
    var mainWindow = new MainWindow();
    mainWindow.DataContext = mainWindowViewModel;
    mainWindow.Show();
}

2.CM框架搭建、事件发布与订阅、log打印、ioc容器、Conductor的用法，框架下的命名约定以及事件绑定、Emgucv进行模板匹配、右键菜单、单例模式等等。

// ViewModelBase.cs
public abstract class ViewModelBase : Screen
{
    protected readonly IEventAggregator _eventAggregator;
    protected readonly ILog _logger;

    public ViewModelBase(IEventAggregator eventAggregator, ILog logger)
    {
        _eventAggregator = eventAggregator;
        _logger = logger;
    }

    // 发布事件
    protected void Publish<TEvent>(TEvent @event)
    {
        _eventAggregator.PublishOnUIThread(@event);
    }

    // 订阅事件
    protected void Subscribe<TEvent>(Action<TEvent> action)
    {
        _eventAggregator.Subscribe(action, ThreadOption.UIThread);
    }

    // 打印日志
    protected void Log(string message)
    {
        _logger.Info(message);
    }
}

// ShellViewModel.cs
public class ShellViewModel : Conductor<object>.Collection.OneActive
{
    private readonly IWindowManager _windowManager;
    private readonly IEventAggregator _eventAggregator;
    private readonly ILog _logger;
    private readonly IContainer _container;

    public ShellViewModel(IWindowManager windowManager, IEventAggregator eventAggregator, ILog logger, IContainer container)
    {
        _windowManager = windowManager;
        _eventAggregator = eventAggregator;
        _logger = logger;
        _container = container;

        // 订阅事件
        _eventAggregator.Subscribe(this);
    }

    // 打开新窗口
    public void OpenWindow()
    {
        var viewModel = _container.Resolve<NewWindowViewModel>();
        _windowManager.ShowDialog(viewModel);
    }

    // 关闭窗口
    public void CloseWindow()
    {
        TryClose();
    }

    // 处理事件
    public void Handle(MyEvent @event)
    {
        // 处理事件
    }
}

// ShellView.xaml
<UserControl x:Class="MyApp.Views.ShellView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:cal="http://www.caliburnproject.org"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             mc:Ignorable="d"
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>

        <Menu Grid.Row="0">
            <MenuItem Header="File">
                <MenuItem Header="Open" cal:Message.Attach="OpenWindow" />
                <MenuItem Header="Close" cal:Message.Attach="CloseWindow" />
            </MenuItem>
        </Menu>

        <ContentControl Grid.Row="1" cal:View.Model="{Binding ActiveItem}" />
    </Grid>
</UserControl>