C#| WPF - 自定义标题栏 - 最大化时从顶部拖动窗口不起作用

时间:2014-07-09 13:19:38

标签: c# wpf window customization titlebar

我有一个自定义标题栏,窗口样式设置为无。在单击标题栏时,我检查它是否是双击(窗口最大化并恢复)如果没有双击,我会Window.DragMove。这适用于侧面和顶部的卡扣。但是当我尝试在窗口最大化时拖动窗口(通常会将窗口恢复原状)时,它不会做任何事情。这是我的代码:

    static Window Window { get { return Application.Current.MainWindow; } }

    /// <summary>
    /// TitleBar_MouseDown - Drag if single-click, resize if double-click
    /// </summary>
    private static void TitleBar_MouseDown(object sender, MouseButtonEventArgs e)
    {
        if (e.ChangedButton == MouseButton.Left)
        {
            if (e.ClickCount == 2)
            {
                AdjustWindowSize();
            }
            else
            {
                Window.DragMove();//Here is where I do the drag move
            }
        }
    }

    /// <summary>
    /// Adjusts the WindowSize to correct parameters when Maximize button is clicked
    /// </summary>
    internal static void AdjustWindowSize()
    {
        if (Window.WindowState == WindowState.Maximized)
        {
            SystemCommands.RestoreWindow(Window);
        }
        else
        {
            SystemCommands.MaximizeWindow(Window);
        }

    }

    #region Button Events

    /// <summary>
    /// CloseButton_Clicked
    /// </summary>
    public static void Close()
    {
        SystemCommands.CloseWindow(Window);
    }

    /// <summary>
    /// MaximizedButton_Clicked
    /// </summary>
    public static void Maximize()
    {
        AdjustWindowSize();
    }

    /// <summary>
    /// Minimized Button_Clicked
    /// </summary>
    public static void Minimize()
    {
        SystemCommands.MinimizeWindow(Window);
    }

    #endregion

现代用户界面和MahApps.Metro以某种方式做到这一点,我简要地查看了他们的源代码,但却找不到他们是如何做到的。

提前致谢。

1 个答案:

答案 0 :(得分:33)

我能够获得所需的标题栏行为,包括纯xaml中的aero snap

结果你可以看到一个自定义标题栏,它是完全可拖动的,双击以最大化并恢复和拖动以捕捉和取消隐藏。

<强> XAML

<Window x:Class="CSharpWPF.MainWindow" 
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            Title="MainWindow" >
    <WindowChrome.WindowChrome>
        <WindowChrome CaptionHeight="{Binding ActualHeight,ElementName=titlebar}"/>
    </WindowChrome.WindowChrome>
    <DockPanel LastChildFill="True">
        <Border Background="LightBlue" DockPanel.Dock="Top" Height="25" x:Name="titlebar">
            <TextBlock Text="{Binding Title, RelativeSource={RelativeSource FindAncestor,AncestorType=Window},FallbackValue=Title}" 
                       Margin="10,0,0,0"
                       VerticalAlignment="Center">
                <TextBlock.Effect>
                    <DropShadowEffect Color="White" ShadowDepth="3"/>
                </TextBlock.Effect>
            </TextBlock>
        </Border>
        <Border BorderBrush="LightGray" BorderThickness="1" Padding="4">
            <TextBlock Text="Window content"/>
        </Border>
    </DockPanel>
</Window>

结果

result

所以现在你不需要任何代码来手动处理标题栏。

可重复使用的样式

你也可以在一个自定义样式中包装上面,你可以在几个窗口上应用

<Style TargetType="Window" x:Key="CustomTitleBar">
    <Setter Property="WindowChrome.WindowChrome">
        <Setter.Value>
            <WindowChrome CaptionHeight="{x:Static SystemParameters.CaptionHeight}" />
        </Setter.Value>
    </Setter>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="Window">
                <DockPanel LastChildFill="True">
                    <Border Background="LightBlue" DockPanel.Dock="Top" 
                            Height="{x:Static SystemParameters.CaptionHeight}" x:Name="titlebar">
                        <Grid>
                            <TextBlock Text="{TemplateBinding Title}" 
                                        Margin="10,0,0,0"
                                        VerticalAlignment="Center">
                                <TextBlock.Effect>
                                    <DropShadowEffect Color="White" ShadowDepth="3"/>
                                </TextBlock.Effect>
                            </TextBlock>
                        </Grid>
                    </Border>
                    <Border Background="{TemplateBinding Background}" BorderBrush="LightGray" 
                            BorderThickness="1" Padding="4">
                        <ContentPresenter/>
                    </Border>
                </DockPanel>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

使用

<Window x:Class="CSharpWPF.View" 
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                Title="MainWindow" 
                Style="{StaticResource CustomTitleBar}" >
    <TextBlock Text="Window content"/>
</Window>

<强> How to implement in your code

在查看您的代码后,我确实设法通过很少的更改来实现它

更改

文件: CustomChrome.cs

第41行:更改CaptionHeight = 36,目前为0.这应该等于标题栏高度

var chrome = new WindowChrome() { GlassFrameThickness = new Thickness(-1), CaptionHeight = 36 };

第60行:删除不需要的((FrameworkElement)sender).MouseDown += TitleBar_MouseDown;

第70行:不再删除使用过的事件TitleBar_MouseDown

文件: CornerButtons.xaml

第13行:将WindowChrome.IsHitTestVisibleInChrome="True"添加到StackPanel

    <StackPanel SnapsToDevicePixels="True" Orientation="Horizontal" WindowChrome.IsHitTestVisibleInChrome="True">

文件: MainWindow.xaml

第17行:将WindowChrome.IsHitTestVisibleInChrome="True"添加到StackPanel

<cc:CornerButtons Grid.Column="2">
    <StackPanel Orientation="Horizontal"
                WindowChrome.IsHitTestVisibleInChrome="True">

这就是全部,您的应用程序将具有正常的标题栏,而无需处理自定义逻辑