Da ich für eine App einen Togglebutton mit Icon brauchte, habe ich mir einen Style für den AppBarToogleButton geschrieben, der diesen so umgestaltet, dass er wie der normale ToggleButton aussieht. Zugegebener maßen, der Aufwand ist gering und es ist auch etwas schmutzig gelöst, da kein Text angezeigt wird. Es erfüllt aber alle meine Anforderungen.
Das Ergebnis sorgt demzufolge einfach dafür, dass jedes angezeigte Icon invertiert wird wenn der Button geklickt ist.
Hier der Style:
<Style x:Key="IconToggleButtonStyle" TargetType="AppBarToggleButton">
<Setter Property="Foreground" Value="{ThemeResource AppBarItemForegroundThemeBrush}" />
<Setter Property="VerticalAlignment" Value="Top" />
<Setter Property="HorizontalAlignment" Value="Left" />
<Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
<Setter Property="FontWeight" Value="Normal" />
<Setter Property="Padding" Value="4" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="AppBarToggleButton">
<Grid x:Name="RootGrid" Background="Transparent">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="ApplicationViewStates">
<!-- FullSize is used when we are in landscape or filled mode -->
<VisualState x:Name="FullSize" />
<!-- Compact is used when we are in portrait or snapped mode -->
<VisualState x:Name="Compact">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="TextLabel" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Collapsed" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="RootGrid" Storyboard.TargetProperty="Width">
<DiscreteObjectKeyFrame KeyTime="0" Value="60" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="PointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundRectangle" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonPointerOverBackgroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarItemPointerOverForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OutlineRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarItemForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundRectangle" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarItemForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarItemPressedForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OutlineRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarItemDisabledForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarItemDisabledForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="TextLabel" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarItemDisabledForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Checked">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OutlineRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedBorderThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundRectangle" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedBackgroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="CheckedPointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OutlineRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedPointerOverBorderThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundRectangle" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedPointerOverBackgroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="CheckedPressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OutlineRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedPressedBorderThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundRectangle" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedPressedBackgroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedPressedForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="CheckedDisabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OutlineRectangle" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedDisabledBorderThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundRectangle" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedDisabledBackgroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarToggleButtonCheckedDisabledForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="TextLabel" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource AppBarItemDisabledForegroundThemeBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="FocusStates">
<VisualState x:Name="Focused">
<Storyboard>
<DoubleAnimation Duration="0"
Storyboard.TargetName="FocusVisualWhite"
Storyboard.TargetProperty="Opacity"
To="1" />
<DoubleAnimation Duration="0"
Storyboard.TargetName="FocusVisualBlack"
Storyboard.TargetProperty="Opacity"
To="1" />
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused" />
<VisualState x:Name="PointerFocused" />
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<StackPanel VerticalAlignment="Top">
<Grid HorizontalAlignment="Center">
<Rectangle x:Name="BackgroundRectangle"
Fill="{ThemeResource AppBarItemBackgroundThemeBrush}"
UseLayoutRounding="False" />
<Rectangle x:Name="OutlineRectangle"
Stroke="{ThemeResource AppBarItemForegroundThemeBrush}"
StrokeThickness="2"
UseLayoutRounding="False" />
<ContentPresenter x:Name="Content"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
AutomationProperties.AccessibilityView="Raw"
Content="{TemplateBinding Icon}"
Foreground="{TemplateBinding Foreground}" Margin="{TemplateBinding Padding}" />
</Grid>
</StackPanel>
<Rectangle x:Name="FocusVisualWhite"
IsHitTestVisible="False"
Opacity="0"
Stroke="{ThemeResource FocusVisualWhiteStrokeThemeBrush}"
StrokeDashArray="1,1"
StrokeDashOffset="1.5"
StrokeEndLineCap="Square" />
<Rectangle x:Name="FocusVisualBlack"
IsHitTestVisible="False"
Opacity="0"
Stroke="{ThemeResource FocusVisualBlackStrokeThemeBrush}"
StrokeDashArray="1,1"
StrokeDashOffset="0.5"
StrokeEndLineCap="Square" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
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