better-genshin-impact/BetterGenshinImpact/View/Controls/Draggable/DraggableResizableItem.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:controls="clr-namespace:BetterGenshinImpact.View.Controls">

    <ResourceDictionary.MergedDictionaries>
        <!--  SizeChrome 显示宽高的  -->
        <!-- <ResourceDictionary Source="SizeChrome.xaml"/> -->
        <ResourceDictionary Source="ResizeRotateChrome.xaml" />
    </ResourceDictionary.MergedDictionaries>

    <!--  可以拖拽调整大小的  -->
    <ControlTemplate x:Key="MoveThumbTemplate" TargetType="{x:Type controls:MoveThumb}">
        <Rectangle Fill="Transparent" />
    </ControlTemplate>

    <Style x:Key="DraggableResizableItemStyle" TargetType="ContentControl">
        <Setter Property="MinHeight" Value="5" />
        <Setter Property="MinWidth" Value="5" />
        <Setter Property="RenderTransformOrigin" Value="0.5,0.5" />
        <Setter Property="SnapsToDevicePixels" Value="true" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="ContentControl">
                    <Grid DataContext="{Binding RelativeSource={RelativeSource TemplatedParent}}">
                        <controls:MoveThumb Cursor="SizeAll" Template="{StaticResource MoveThumbTemplate}" />
                        <ContentPresenter Margin="{TemplateBinding Padding}" Content="{TemplateBinding ContentControl.Content}" />
                        <controls:DesignerItemDecorator x:Name="ItemDecorator" />
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="Selector.IsSelected" Value="True">
                            <Setter TargetName="ItemDecorator" Property="ShowDecorator" Value="True" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <!--  可以拖拽调整大小的 拖拽按钮在外面  -->
    <ControlTemplate x:Key="OuterMoveThumbTemplate" TargetType="{x:Type controls:MoveThumb}">
        <!--<Rectangle x:Name="DragHandle" Fill="Blue" >

        </Rectangle>-->
        <Image x:Name="DragHandle" Source="pack://application:,,,/BetterGI;component;component/Assets/Images/drag.png" />

        <!--<ControlTemplate.Triggers>
            <Trigger Property="Selector.IsSelected" Value="False">
                <Setter TargetName="DragHandle" Property="Fill" Value="Transparent" />
            </Trigger>
        </ControlTemplate.Triggers>-->
    </ControlTemplate>

    <Style x:Key="OuterDraggableResizableItemStyle" TargetType="ContentControl">
        <Setter Property="MinHeight" Value="5" />
        <Setter Property="MinWidth" Value="5" />
        <Setter Property="RenderTransformOrigin" Value="0.5,0.5" />
        <Setter Property="SnapsToDevicePixels" Value="true" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="ContentControl">
                    <Grid DataContext="{Binding RelativeSource={RelativeSource TemplatedParent}}">
                        <controls:MoveThumb Width="20"
                                            Height="20"
                                            Margin="0,-23,0,0"
                                            HorizontalAlignment="Left"
                                            VerticalAlignment="Top"
                                            Cursor="SizeAll"
                                            Template="{StaticResource OuterMoveThumbTemplate}" />
                        <ContentPresenter Margin="{TemplateBinding Padding}" Content="{TemplateBinding ContentControl.Content}" />
                        <controls:DesignerItemDecorator x:Name="ItemDecorator" />
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="Selector.IsSelected" Value="True">
                            <Setter TargetName="ItemDecorator" Property="ShowDecorator" Value="True" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>


</ResourceDictionary>