[C#/WPF] BitmapCacheBrush 엘리먼트 : 캐시된 컨텐츠로 영역 그리기

■ BitmapCacheBrush 엘리먼트를 사용해 캐시된 컨텐츠로 영역을 그리는 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="TestProject"
    FontFamily="나눔고딕코딩"
     FontSize="16">
    <Window.Resources>
        <RichTextBox x:Key="RichTextBoxKey">
            <RichTextBox.CacheMode>
                <BitmapCache
                    EnableClearType="True"
                    RenderAtScale="1"
                    SnapsToDevicePixels="True" />
            </RichTextBox.CacheMode>
        </RichTextBox>
        <BitmapCacheBrush x:Key="BitmapCacheBrushKey" Target="{StaticResource RichTextBoxKey}">
            <BitmapCacheBrush.BitmapCache>
                <BitmapCache
                    EnableClearType="False"
                    RenderAtScale="0.4"
                    SnapsToDevicePixels="False" />
            </BitmapCacheBrush.BitmapCache>
        </BitmapCacheBrush>
    </Window.Resources>
    <Grid Margin="10">
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        <Button Name="button1" Grid.Row="0" Grid.Column="0"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button2" Grid.Row="0" Grid.Column="1"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button3" Grid.Row="0" Grid.Column="2"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button4" Grid.Row="0" Grid.Column="3"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button5" Grid.Row="0" Grid.Column="4"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button6" Grid.Row="1" Grid.Column="0"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button7" Grid.Row="1" Grid.Column="1"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button8" Grid.Row="1" Grid.Column="2"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button9" Grid.Row="1" Grid.Column="3"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button10" Grid.Row="1" Grid.Column="4"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button11" Grid.Row="2" Grid.Column="0"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button12" Grid.Row="2" Grid.Column="1"
            Background="{StaticResource BitmapCacheBrushKey}"
            Content="Button"
            FontWeight="Bold" />
        <Button Name="button13" Grid.Row="2" Grid.Column="2"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button14" Grid.Row="2" Grid.Column="3"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button15" Grid.Row="2" Grid.Column="4"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button16" Grid.Row="3" Grid.Column="0"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button17" Grid.Row="3" Grid.Column="1"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button18" Grid.Row="3" Grid.Column="2"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button19" Grid.Row="3" Grid.Column="3"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button20" Grid.Row="3" Grid.Column="4"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button21" Grid.Row="4" Grid.Column="0"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button22" Grid.Row="4" Grid.Column="1"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button23" Grid.Row="4" Grid.Column="2"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button24" Grid.Row="4" Grid.Column="3"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
        <Button Name="button25" Grid.Row="4" Grid.Column="4"
            Background="{StaticResource BitmapCacheBrushKey}"
            FontWeight="Bold"
            Content="Button" />
    </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="TestProject"

FontFamily="나눔고딕코딩"

FontSize="16">

<Window.Resources>

<RichTextBox.CacheMode>

<BitmapCache

EnableClearType="True"

RenderAtScale="1"

SnapsToDevicePixels="True" />

</RichTextBox.CacheMode>

</RichTextBox>

<BitmapCacheBrush.BitmapCache>

<BitmapCache

EnableClearType="False"

RenderAtScale="0.4"

SnapsToDevicePixels="False" />

</BitmapCacheBrush.BitmapCache>

</BitmapCacheBrush>

</Window.Resources>

<Grid.RowDefinitions>

</Grid.RowDefinitions>

<Grid.ColumnDefinitions>

</Grid.ColumnDefinitions>

<Button Name="button1" Grid.Row="0" Grid.Column="0"