[C#/WPF] LinearGradientBrush 엘리먼트 : 투명 패널 사용하기

■ LinearGradientBrush 엘리먼트를 사용해 투명 패널을 만드는 방법을 보여준다.

▶ MainWindow.xaml


<Window x:Class="TestProject.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="800"
    Height="600"
    Title="LinearGradientBrush 엘리먼트 : 투명 패널 사용하기"
    Background="Black"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Window.Resources>
        <Style x:Key="TransparentPanelStyleKey" TargetType="Border">
            <Setter Property="BorderBrush"     Value="#66444444" />
            <Setter Property="BorderThickness" Value="1"         />
            <Setter Property="Background">
                <Setter.Value>
                    <LinearGradientBrush StartPoint="0 0" EndPoint="1 1">
                        <GradientStop Color="#bb222222" Offset="0"   />
                        <GradientStop Color="#aa444444" Offset="0.6" />
                        <GradientStop Color="#99222222" Offset="1"   />
                    </LinearGradientBrush>
                </Setter.Value>
            </Setter>
        </Style>
        <LinearGradientBrush x:Key="HeaderLinearGradientBrushKey"
            StartPoint="0 0"
            EndPoint="0 1">
            <GradientStopCollection>
                <GradientStop Offset="0.0"  Color="#ffffffff" />
                <GradientStop Offset="0.03" Color="#bb0c0c0b" />
                <GradientStop Offset="1.0"  Color="#880c0c0b" />
            </GradientStopCollection>
        </LinearGradientBrush>
        <Style x:Key="ScrollBarThumbKey" TargetType="{x:Type Thumb}">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type Thumb}">
                        <Grid x:Name="grid">
                            <Rectangle
                                HorizontalAlignment="Stretch"
                                VerticalAlignment="Stretch"
                                Width="Auto"
                                Height="Auto"
                                Fill="Transparent" />
                            <Border x:Name="rectangle"
                                HorizontalAlignment="Stretch"
                                VerticalAlignment="Stretch"
                                Width="Auto"
                                Height="Auto"
                                CornerRadius="5"
                                Background="{TemplateBinding Background}" />
                        </Grid>
                        <ControlTemplate.Triggers>
                            <Trigger Property="Tag" Value="Horizontal">
                                <Setter
                                    TargetName="rectangle"
                                    Property="Width"
                                    Value="Auto" />
                                <Setter
                                    TargetName="rectangle"
                                    Property="Height"
                                    Value="7" />
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <Style x:Key="{x:Type ScrollBar}" TargetType="{x:Type ScrollBar}">
            <Setter Property="Width"                  Value="8"           />
            <Setter Property="Background"             Value="Transparent" />
            <Setter Property="Foreground"             Value="#8c8c8c"     />
            <Setter Property="Stylus.IsFlicksEnabled" Value="false"       />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type ScrollBar}">
                        <Grid x:Name="rootGrid"
                            Width="8"
                            Background="{TemplateBinding Background}">
                            <Grid.RowDefinitions>
                                <RowDefinition Height="0.00001*" />
                            </Grid.RowDefinitions>
                            <Track x:Name="PART_Track" Grid.Row="0"
                                IsDirectionReversed="true"
                                Focusable="false">
                                <Track.Thumb>
                                    <Thumb x:Name="thumb"
                                        Style="{DynamicResource ScrollBarThumbKey}"
                                        Background="{TemplateBinding Foreground}" />
                                </Track.Thumb>
                                <Track.IncreaseRepeatButton>
                                    <RepeatButton x:Name="pageUpButton"
                                        Opacity="0"
                                        Focusable="false"
                                        Command="ScrollBar.PageDownCommand" />
                                </Track.IncreaseRepeatButton>
                                <Track.DecreaseRepeatButton>
                                    <RepeatButton x:Name="pageDownButton"
                                        Opacity="0"
                                        Focusable="false"
                                        Command="ScrollBar.PageUpCommand" />
                                </Track.DecreaseRepeatButton>
                            </Track>
                        </Grid>
                        <ControlTemplate.Triggers>
                            <Trigger SourceName="thumb" Property="IsMouseOver" Value="true">
                                <Setter
                                    TargetName="thumb"
                                    Property="Background"
                                    Value="{DynamicResource ButtonSelectBrush}" />
                            </Trigger>
                            <Trigger SourceName="thumb" Property="IsDragging" Value="true">
                                <Setter
                                    TargetName="thumb"
                                    Property="Background"
                                    Value="{DynamicResource DarkBrush}" />
                            </Trigger>
                            <Trigger Property="IsEnabled" Value="false">
                                <Setter
                                    TargetName="thumb"
                                    Property="Visibility"
                                    Value="Collapsed" />
                            </Trigger>
                            <Trigger Property="Orientation" Value="Horizontal">
                                <Setter
                                    TargetName="rootGrid"
                                    Property="LayoutTransform">
                                    <Setter.Value>
                                        <RotateTransform Angle="-90" />
                                    </Setter.Value>
                                </Setter>
                                <Setter
                                    TargetName="PART_Track"
                                    Property="LayoutTransform">
                                    <Setter.Value>
                                        <RotateTransform Angle="-90" />
                                    </Setter.Value>
                                </Setter>
                                <Setter Property="Width"  Value="Auto" />
                                <Setter Property="Height" Value="8"    />
                                <Setter
                                    TargetName="thumb"
                                    Property="Tag"
                                    Value="Horizontal" />
                                <Setter
                                    TargetName="pageDownButton"
                                    Property="Command"
                                    Value="ScrollBar.PageLeftCommand" />
                                <Setter
                                    TargetName="pageUpButton"
                                    Property="Command"
                                    Value="ScrollBar.PageRightCommand" />
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Window.Resources>
    <Grid>
        <Image
            Stretch="UniformToFill"
            Source="IMAGE/sample.jpg" />
        <DockPanel LastChildFill="False">
            <Border DockPanel.Dock="Left"
                Style="{StaticResource TransparentPanelStyleKey}"
                VerticalAlignment="Stretch"
                Margin="10"
                Width="200">
                <ScrollViewer
                    Height="{Binding Path=ActualHeight, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=UIElement}}"
                    HorizontalScrollBarVisibility="Hidden"
                    VerticalScrollBarVisibility="Auto">
                    <StackPanel Margin="10">
                        <TextBlock
                            Margin="0 10 0 0"
                            Background="{StaticResource HeaderLinearGradientBrushKey}"
                            Padding="5"
                            Foreground="White"
                            Text="그룹 1" />
                        <TextBlock
                            Margin="10 10 0 0"
                            Foreground="White"
                            Text="그룹 1 항목 입니다." />
                        <Ellipse
                            Margin="0 10 0 0"
                            Width="100"
                            Height="100"
                            Stroke="White"
                            StrokeThickness="2"
                            Fill="Gold"
                            Opacity="0.5" />
                        <TextBlock
                            Margin="0 10 0 0"
                            Background="{StaticResource HeaderLinearGradientBrushKey}"
                            Padding="5"
                            Foreground="White"
                            Text="그룹 2" />
                        <TextBlock
                            Margin="10 10 0 0"
                            Foreground="Red"
                            Text="그룹 2 항목 입니다." />
                        <Ellipse
                            Margin="0 10 0 0"
                            Width="100"
                            Height="100"
                            Stroke="White"
                            StrokeThickness="2"
                            Fill="RoyalBlue" />
                    </StackPanel>
                </ScrollViewer>
                <Border.RenderTransform>
                    <TranslateTransform x:Name="translateTransform1" />
                </Border.RenderTransform>
                <Border.Triggers>
                    <EventTrigger RoutedEvent="Border.Loaded">
                        <BeginStoryboard>
                            <Storyboard>
                                <DoubleAnimation
                                    Storyboard.TargetName="translateTransform1"
                                    Storyboard.TargetProperty="X"
                                    From="-200"
                                    To="0"
                                    Duration="0:0:0.3">
                                    <DoubleAnimation.EasingFunction>
                                        <PowerEase EasingMode="EaseOut" />
                                    </DoubleAnimation.EasingFunction>
                                </DoubleAnimation>
                            </Storyboard>
                        </BeginStoryboard>
                    </EventTrigger>
                </Border.Triggers>
            </Border>
            <Border DockPanel.Dock="Right"
                Style="{StaticResource TransparentPanelStyleKey}"
                VerticalAlignment="Stretch"
                Margin="10"
                Width="200">
                <ScrollViewer
                    Height="{Binding Path=ActualHeight, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=UIElement}}"
                    HorizontalScrollBarVisibility="Hidden"
                    VerticalScrollBarVisibility="Auto">
                    <StackPanel Margin="10">
                        <TextBlock
                            Margin="0 10 0 0"
                            Background="{StaticResource HeaderLinearGradientBrushKey}"
                            Padding="5"
                            Foreground="White"
                            Text="그룹 3" />
                        <TextBlock
                            Margin="10 10 0 0"
                            Foreground="White"
                            Text="그룹 3 항목 입니다." />
                        <Ellipse
                            Margin="0 10 0 0"
                            Width="100"
                            Height="100"
                            Stroke="White"
                            StrokeThickness="2"
                            Fill="Magenta"
                            Opacity="0.5" />
                        <TextBlock
                            Margin="0 10 0 0"
                            Background="{StaticResource HeaderLinearGradientBrushKey}"
                            Padding="5"
                            Foreground="White"
                            Text="그룹 4" />
                        <TextBlock
                            Margin="10 10 0 0"
                            Foreground="Red"
                            Text="그룹 4 항목 입니다." />
                        <Ellipse
                            Margin="0 10 0 0"
                            Width="100"
                            Height="100"
                            Stroke="White"
                            StrokeThickness="2"
                            Fill="Green" />
                    </StackPanel>
                </ScrollViewer>
                <Border.RenderTransform>
                    <TranslateTransform x:Name="translateTransform2" />
                </Border.RenderTransform>
                <Border.Triggers>
                    <EventTrigger RoutedEvent="Border.Loaded">
                        <BeginStoryboard>
                            <Storyboard>
                                <DoubleAnimation
                                    Storyboard.TargetName="translateTransform2"
                                    Storyboard.TargetProperty="X"
                                    From="200"
                                    To="0"
                                    Duration="0:0:0.3">
                                    <DoubleAnimation.EasingFunction>
                                        <PowerEase EasingMode="EaseOut" />
                                    </DoubleAnimation.EasingFunction>
                                </DoubleAnimation>
                            </Storyboard>
                        </BeginStoryboard>
                    </EventTrigger>
                </Border.Triggers>
            </Border>
        </DockPanel>
    </Grid>
</Window>

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<Window x:Class="TestProject.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Width="800"

Height="600"

Title="LinearGradientBrush 엘리먼트 : 투명 패널 사용하기"

Background="Black"

FontFamily="나눔고딕코딩"

FontSize="16">

<Window.Resources>

<Setter.Value>

</LinearGradientBrush>

</Setter.Value>

</Setter>

</Style>

<LinearGradientBrush x:Key="HeaderLinearGradientBrushKey"

StartPoint="0 0"

EndPoint="0 1">

</GradientStopCollection>

</LinearGradientBrush>

<Setter.Value>

<Rectangle

HorizontalAlignment="Stretch"

VerticalAlignment="Stretch"

Width="Auto"

Height="Auto"

Fill="Transparent" />

<Border x:Name="rectangle"

HorizontalAlignment="Stretch"

VerticalAlignment="Stretch"

Width="Auto"

Height="Auto"

CornerRadius="5"

Background="{TemplateBinding Background}" />

</Grid>

<ControlTemplate.Triggers>

<Setter

TargetName="rectangle"

Property="Width"

Value="Auto" />

<Setter

TargetName="rectangle"

Property="Height"

Value="7" />

</Trigger>

</ControlTemplate.Triggers>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

<Setter.Value>

<Grid x:Name="rootGrid"

Width="8"

Background="{TemplateBinding Background}">

<Grid.RowDefinitions>

</Grid.RowDefinitions>

<Track x:Name="PART_Track" Grid.Row="0"

IsDirectionReversed="true"

Focusable="false">

<Track.Thumb>

<Thumb x:Name="thumb"

Style="{DynamicResource ScrollBarThumbKey}"

Background="{TemplateBinding Foreground}" />

</Track.Thumb>

<Track.IncreaseRepeatButton>

<RepeatButton x:Name="pageUpButton"

Opacity="0"

Focusable="false"

Command="ScrollBar.PageDownCommand" />

</Track.IncreaseRepeatButton>

<Track.DecreaseRepeatButton>

<RepeatButton x:Name="pageDownButton"

Opacity="0"

Focusable="false"

Command="ScrollBar.PageUpCommand" />

</Track.DecreaseRepeatButton>

</Track>

</Grid>

<ControlTemplate.Triggers>

<Setter

TargetName="thumb"

Property="Background"

Value="{DynamicResource ButtonSelectBrush}" />

</Trigger>

<Setter

TargetName="thumb"

Property="Background"

Value="{DynamicResource DarkBrush}" />

</Trigger>

<Setter

TargetName="thumb"

Property="Visibility"

Value="Collapsed" />

</Trigger>

<Setter

TargetName="rootGrid"

Property="LayoutTransform">

<Setter.Value>

</Setter.Value>

</Setter>

<Setter

TargetName="PART_Track"

Property="LayoutTransform">

<Setter.Value>

</Setter.Value>

</Setter>

<Setter

TargetName="thumb"

Property="Tag"

Value="Horizontal" />

<Setter

TargetName="pageDownButton"

Property="Command"

Value="ScrollBar.PageLeftCommand" />

<Setter

TargetName="pageUpButton"

Property="Command"

Value="ScrollBar.PageRightCommand" />

</Trigger>

</ControlTemplate.Triggers>

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

</Window.Resources>

<Grid>

<Image

Stretch="UniformToFill"

Source="IMAGE/sample.jpg" />

<Border DockPanel.Dock="Left"

Style="{StaticResource TransparentPanelStyleKey}"

VerticalAlignment="Stretch"

Margin="10"

Width="200">

<ScrollViewer

Height="{Binding Path=ActualHeight, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=UIElement}}"

HorizontalScrollBarVisibility="Hidden"

VerticalScrollBarVisibility="Auto">

<TextBlock

Margin="0 10 0 0"

Background="{StaticResource HeaderLinearGradientBrushKey}"

Padding="5"

Foreground="White"

Text="그룹 1" />

<TextBlock

Margin="10 10 0 0"

Foreground="White"

Text="그룹 1 항목 입니다." />

<Ellipse

Margin="0 10 0 0"

Width="100"

Height="100"

Stroke="White"

StrokeThickness="2"

Fill="Gold"

Opacity="0.5" />

<TextBlock

Margin="0 10 0 0"

Background="{StaticResource HeaderLinearGradientBrushKey}"

Padding="5"

Foreground="White"

Text="그룹 2" />

<TextBlock

Margin="10 10 0 0"

Foreground="Red"

Text="그룹 2 항목 입니다." />

<Ellipse

Margin="0 10 0 0"

Width="100"

Height="100"

Stroke="White"

StrokeThickness="2"

Fill="RoyalBlue" />

</StackPanel>

</ScrollViewer>

<Border.RenderTransform>

</Border.RenderTransform>

<Border.Triggers>

<DoubleAnimation

Storyboard.TargetName="translateTransform1"

Storyboard.TargetProperty="X"

From="-200"

To="0"

Duration="0:0:0.3">

<DoubleAnimation.EasingFunction>

</DoubleAnimation.EasingFunction>

</DoubleAnimation>

</Storyboard>

</BeginStoryboard>

</EventTrigger>

</Border.Triggers>

</Border>

<Border DockPanel.Dock="Right"

Style="{StaticResource TransparentPanelStyleKey}"

VerticalAlignment="Stretch"

Margin="10"

Width="200">

<ScrollViewer

Height="{Binding Path=ActualHeight, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=UIElement}}"

HorizontalScrollBarVisibility="Hidden"

VerticalScrollBarVisibility="Auto">

<TextBlock

Margin="0 10 0 0"

Background="{StaticResource HeaderLinearGradientBrushKey}"

Padding="5"

Foreground="White"

Text="그룹 3" />

<TextBlock

Margin="10 10 0 0"

Foreground="White"

Text="그룹 3 항목 입니다." />

<Ellipse

Margin="0 10 0 0"

Width="100"

Height="100"

Stroke="White"

StrokeThickness="2"

Fill="Magenta"

Opacity="0.5" />

<TextBlock

Margin="0 10 0 0"

Background="{StaticResource HeaderLinearGradientBrushKey}"

Padding="5"

Foreground="White"

Text="그룹 4" />

<TextBlock

Margin="10 10 0 0"

Foreground="Red"

Text="그룹 4 항목 입니다." />

<Ellipse

Margin="0 10 0 0"

Width="100"

Height="100"

Stroke="White"

StrokeThickness="2"

Fill="Green" />

</StackPanel>

</ScrollViewer>

<Border.RenderTransform>

</Border.RenderTransform>

<Border.Triggers>

<DoubleAnimation

Storyboard.TargetName="translateTransform2"

Storyboard.TargetProperty="X"

From="200"

To="0"

Duration="0:0:0.3">

<DoubleAnimation.EasingFunction>

</DoubleAnimation.EasingFunction>

</DoubleAnimation>

</Storyboard>

</BeginStoryboard>

</EventTrigger>

</Border.Triggers>

</Border>

</DockPanel>

</Grid>

</Window>

TestProject.zip