HandyControl/src/Shared/HandyControl_Shared/Themes/Styles/Base/ButtonBaseStyle.xaml

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

    <Style x:Key="ButtonBaseStyle" BasedOn="{StaticResource ButtonBaseBaseStyle}" TargetType="Button">
        <Setter Property="BorderThickness" Value="1"/>
        <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
        <Setter Property="hc:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Button">
                    <hc:SimplePanel>
                        <Border Background="{TemplateBinding Background}" CornerRadius="{Binding Path=(hc:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}"/>
                        <Border BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}" CornerRadius="{Binding Path=(hc:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}">
                            <StackPanel Orientation="Horizontal" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="{TemplateBinding Padding}">
                                <Path x:Name="PathMain" Width="{TemplateBinding hc:IconElement.Width}" Height="{TemplateBinding hc:IconElement.Height}" Fill="{TemplateBinding Foreground}" SnapsToDevicePixels="True" Stretch="Uniform" Data="{TemplateBinding hc:IconElement.Geometry}"/>
                                <ContentPresenter x:Name="ContentPresenterMain" RecognizesAccessKey="True" VerticalAlignment="Center" Margin="6,0,0,0" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                            </StackPanel>
                        </Border>
                    </hc:SimplePanel>
                    <ControlTemplate.Triggers>
                        <Trigger Property="Content" Value="{x:Null}">
                            <Setter Property="Visibility" Value="Collapsed" TargetName="ContentPresenterMain"/>
                        </Trigger>
                        <Trigger Property="hc:IconElement.Geometry" Value="{x:Null}">
                            <Setter Property="Visibility" Value="Collapsed" TargetName="PathMain"/>
                            <Setter Property="Margin" Value="0" TargetName="ContentPresenterMain"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="True">
                <Setter Property="Opacity" Value=".9"/>
            </Trigger>
            <Trigger Property="IsPressed" Value="True">
                <Setter Property="Opacity" Value=".6"/>
            </Trigger>
            <Trigger Property="IsEnabled" Value="False">
                <Setter Property="Opacity" Value="0.4"/>
            </Trigger>
        </Style.Triggers>
    </Style>

    <Style x:Key="ButtonDashedBaseStyle" BasedOn="{StaticResource ButtonBaseStyle}" TargetType="Button">
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Button">
                    <hc:DashedBorder BorderDashArray="3,2" BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}" Background="Transparent" CornerRadius="{Binding Path=(hc:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}">
                        <StackPanel Orientation="Horizontal" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="{TemplateBinding Padding}">
                            <Path x:Name="PathMain" Width="{TemplateBinding hc:IconElement.Width}" Height="{TemplateBinding hc:IconElement.Height}" Fill="{TemplateBinding Foreground}" SnapsToDevicePixels="True" Stretch="Uniform" Data="{TemplateBinding hc:IconElement.Geometry}"/>
                            <ContentPresenter x:Name="ContentPresenterMain" RecognizesAccessKey="True" VerticalAlignment="Center" Margin="6,0,0,0" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                        </StackPanel>
                    </hc:DashedBorder>
                    <ControlTemplate.Triggers>
                        <Trigger Property="Content" Value="{x:Null}">
                            <Setter Property="Visibility" Value="Collapsed" TargetName="ContentPresenterMain"/>
                        </Trigger>
                        <Trigger Property="hc:IconElement.Geometry" Value="{x:Null}">
                            <Setter Property="Visibility" Value="Collapsed" TargetName="PathMain"/>
                            <Setter Property="Margin" Value="0" TargetName="ContentPresenterMain"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <Style x:Key="ButtonGroupItemBaseStyle" BasedOn="{StaticResource BaseStyle}" TargetType="Button">
        <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
        <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
        <Setter Property="BorderThickness" Value="1"/>
        <Setter Property="VerticalAlignment" Value="Center"/>
        <Setter Property="VerticalContentAlignment" Value="Center"/>
        <Setter Property="HorizontalContentAlignment" Value="Center"/>
        <Setter Property="hc:BorderElement.CornerRadius" Value="0"/>
        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
        <Setter Property="Padding" Value="10,0"/>
        <Setter Property="Margin" Value="-1,0,0,0"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Button">
                    <Border x:Name="BorderRoot" CornerRadius="{Binding Path=(hc:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" Background="{TemplateBinding Background}" BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}">
                        <StackPanel Orientation="Horizontal" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="{TemplateBinding Padding}">
                            <Path x:Name="PathMain" Width="{TemplateBinding hc:IconElement.Width}" Height="{TemplateBinding hc:IconElement.Height}" Fill="{TemplateBinding Foreground}" SnapsToDevicePixels="True" Stretch="Uniform" Data="{TemplateBinding hc:IconElement.Geometry}"/>
                            <ContentPresenter x:Name="contentPresenter" RecognizesAccessKey="True" VerticalAlignment="Center" Margin="6,0,0,0" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                        </StackPanel>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter Property="TextElement.Foreground" Value="{DynamicResource PrimaryBrush}" TargetName="contentPresenter"/>
                        </Trigger>
                        <Trigger Property="Content" Value="{x:Null}">
                            <Setter Property="Visibility" Value="Collapsed" TargetName="contentPresenter"/>
                        </Trigger>
                        <Trigger Property="hc:IconElement.Geometry" Value="{x:Null}">
                            <Setter Property="Visibility" Value="Collapsed" TargetName="PathMain"/>
                            <Setter Property="Margin" Value="0" TargetName="contentPresenter"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <Style.Triggers>
            <Trigger Property="IsEnabled" Value="False">
                <Setter Property="Opacity" Value="0.4"/>
            </Trigger>
            <DataTrigger Binding="{Binding Orientation,RelativeSource={RelativeSource  AncestorType=hc:ButtonGroup}}" Value="Vertical">
                <Setter Property="Margin" Value="0,-1,0,0"/>
            </DataTrigger>
            <Trigger Property="IsMouseOver" Value="True">
                <Setter Property="Background" Value="{DynamicResource SecondaryRegionBrush}"/>
            </Trigger>
            <Trigger Property="IsPressed" Value="True">
                <Setter Property="Background" Value="{DynamicResource BorderBrush}"/>
            </Trigger>
        </Style.Triggers>
    </Style>

</ResourceDictionary>