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Add CheckBox animation #1512

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Add CheckBox animation #1512

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fc4c782
Add CheckBox animation
Nuklon Aug 13, 2025
73521d0
Switch back to original idea
Nuklon Aug 13, 2025
e504403
Create ClipConverter
Nuklon Aug 14, 2025
8625923
Update CheckBox.xaml
Nuklon Aug 14, 2025
29a59a9
Update CheckBox.xaml
Nuklon Aug 14, 2025
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64 changes: 52 additions & 12 deletions src/Wpf.Ui/Controls/CheckBox/CheckBox.xaml
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,10 @@
<system:Double x:Key="CheckBoxIconSize">14</system:Double>
<system:Double x:Key="CheckBoxHeight">22</system:Double>
<system:Double x:Key="CheckBoxWidth">22</system:Double>
<system:TimeSpan x:Key="CheckBoxAnimationOffset">00:00:00.250</system:TimeSpan>
<Duration x:Key="CheckBoxAnimationDuration">00:00:00.250</Duration>
<converters:AnimationFactorToValueConverter x:Key="CheckBoxAnimationFactorToValueConverter" />
<converters:ClipConverter x:Key="ClipConverter" />

<Style x:Key="DefaultCheckBoxStyle" TargetType="{x:Type CheckBox}">
<!-- Universal WPF UI focus -->
Expand Down Expand Up @@ -78,18 +82,28 @@
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
CornerRadius="{TemplateBinding Border.CornerRadius}">
<Grid>
<controls:SymbolIcon
x:Name="ControlIcon"
Margin="0"
HorizontalAlignment="Center"
VerticalAlignment="Center"
FontSize="{StaticResource CheckBoxIconSize}"
FontWeight="Bold"
Foreground="{DynamicResource CheckBoxCheckGlyphForeground}"
Symbol="Checkmark48"
Visibility="Collapsed" />
</Grid>
<controls:SymbolIcon
x:Name="ControlIcon"
HorizontalAlignment="Center"
VerticalAlignment="Center"
FontSize="{DynamicResource CheckBoxIconSize}"
FontWeight="Bold"
Foreground="{DynamicResource CheckBoxCheckGlyphForeground}"
Symbol="Checkmark48"
Visibility="Collapsed">
<controls:SymbolIcon.Clip>
<MultiBinding Converter="{StaticResource ClipConverter}">
<MultiBinding.Bindings>
<Binding Path="ActualWidth" RelativeSource="{RelativeSource Self}" />
<Binding Path="ActualHeight" RelativeSource="{RelativeSource Self}" />
<Binding Path="Tag" RelativeSource="{RelativeSource Self}" />
</MultiBinding.Bindings>
</MultiBinding>
</controls:SymbolIcon.Clip>
<controls:SymbolIcon.Tag>
<system:Double>1</system:Double>
</controls:SymbolIcon.Tag>
</controls:SymbolIcon>
</Border>
</Border>
</BulletDecorator.Bullet>
Expand Down Expand Up @@ -119,7 +133,33 @@
<Setter TargetName="ControlIcon" Property="Visibility" Value="Visible" />
<Setter TargetName="ControlBorderIconPresenter" Property="Background" Value="{DynamicResource CheckBoxCheckBackgroundFillChecked}" />
<Setter TargetName="StrokeBorder" Property="BorderBrush" Value="{DynamicResource CheckBoxCheckBorderBrush}" />
<Trigger.EnterActions>
<BeginStoryboard Name="SlideIn">
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="ControlIcon"
Storyboard.TargetProperty="Tag"
From="0"
To="1"
Duration="{StaticResource CheckBoxAnimationDuration}">
<DoubleAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut" />
</DoubleAnimation.EasingFunction>
</DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
</Trigger>
<!-- Skip the animation when it becomes visible -->
<Trigger Property="Visibility" Value="Visible">
<Trigger.EnterActions>
<SeekStoryboard BeginStoryboardName="SlideIn" Offset="{StaticResource CheckBoxAnimationOffset}" />
</Trigger.EnterActions>
</Trigger>
<!-- Skip the animation on load -->
<EventTrigger RoutedEvent="FrameworkElement.Loaded">
<SeekStoryboard BeginStoryboardName="SlideIn" Offset="{StaticResource CheckBoxAnimationOffset}" />
</EventTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver" Value="True" />
Expand Down
34 changes: 34 additions & 0 deletions src/Wpf.Ui/Converters/ClipConverter
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Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
// All Rights Reserved.

using System.Windows.Data;

namespace Wpf.Ui.Converters;

public class ClipConverter : IMultiValueConverter
{
/// <inheritdoc />
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
if (values.Length != 3)
{
return null;
}

if (values[0] is not double width || values[1] is not double height || values[2] is not double percentage)
{
return null;
}

double clippedWidth = width * percentage;
return new RectangleGeometry(new Rect(0, 0, clippedWidth, height));
}

/// <inheritdoc />
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}