Calculator.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:im="clr-namespace:GrapeCity.Windows.InputMan;assembly=GrapeCity.WPF.InputMan"
    xmlns:imp="clr-namespace:GrapeCity.Windows.InputMan.Primitives;assembly=GrapeCity.WPF.InputMan">

    <ResourceDictionary.MergedDictionaries>        
        <ResourceDictionary Source="/Themes/Generic/Common.xaml"/>
        <ResourceDictionary Source="/Themes/Generic/CalculatorButton.xaml"/>
    </ResourceDictionary.MergedDictionaries>
    <im:BooleanToDoubleConverter x:Key="BooleanToDoubleConverterKey"/>
    <Style x:Key="GcCalculaorFocusVisual">
        <Setter Property="Control.Template">
            <Setter.Value>
                <ControlTemplate>
                    <Rectangle Margin="3" StrokeThickness="1" Stroke="Black" StrokeDashArray="1 2" SnapsToDevicePixels="true"/>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <SolidColorBrush x:Key="GcCalculatorDisabledForegroundBrush" Color="#FFADADAD"/>

    <Style x:Key="CalculatorButton_StyleKey" TargetType="{x:Type imp:CalculatorButton}" BasedOn="{StaticResource {x:Type Button}}">
        <Setter Property="Foreground" Value="Black"/>
        <Setter Property="Focusable" Value="false"/>
        <Setter Property="Margin" Value="2"/>
        <Setter Property="Padding" Value="7,4"/>
        <Setter Property="ContentTemplate" Value="{StaticResource CalculatorButtonContentTemplate}"/>
    </Style>
    <Style TargetType="imp:CalculatorButton" BasedOn="{StaticResource CalculatorButton_StyleKey}"/>

    <Style x:Key="EditButtonStyleKey" TargetType="{x:Type imp:CalculatorButton}" BasedOn="{StaticResource CalculatorButton_StyleKey}"/>
    <Style x:Key="ResetButtonStyleKey" TargetType="{x:Type imp:CalculatorButton}" BasedOn="{StaticResource CalculatorButton_StyleKey}"/>
    <Style x:Key="NumericButtonStyleKey" TargetType="{x:Type imp:CalculatorButton}" BasedOn="{StaticResource CalculatorButton_StyleKey}"/>
    <Style x:Key="MemoryButtonStyleKey" TargetType="{x:Type imp:CalculatorButton}" BasedOn="{StaticResource CalculatorButton_StyleKey}">
        <Setter Property="Foreground" Value="Blue"/>
    </Style>

    <Style x:Key="MathButtonStyleKey" TargetType="{x:Type imp:CalculatorButton}" BasedOn="{StaticResource CalculatorButton_StyleKey}">
        <Setter Property="Foreground" Value="Maroon"/>
    </Style>

    <Style x:Key="OutputStyleKey" TargetType="TextBlock" >
        <Setter Property="FontSize" Value="20"/>
        <Setter Property="Foreground" Value="Black"/>
        <Setter Property="TextAlignment" Value="Right"/>
        <Setter Property="HorizontalAlignment" Value="Right"/>
        <Setter Property="VerticalAlignment" Value="Bottom"/>
        <Setter Property="Margin" Value="0,0,4,4"/>
        <Setter Property="Opacity" Value="1"/>
    </Style>

    <Style x:Key="HistoryStyleKey" TargetType="TextBlock">
        <Setter Property="Foreground" Value="Black"/>
        <Setter Property="TextAlignment" Value="Right"/>
        <Setter Property="HorizontalAlignment" Value="Right"/>
        <Setter Property="VerticalAlignment" Value="Top"/>
        <Setter Property="Margin" Value="0,2,2,0"/>
    </Style>

    <Style x:Key="ErrorMessageStyleKey" TargetType="TextBlock">
        <Setter Property="Foreground" Value="Black"/>
        <Setter Property="TextAlignment" Value="Right"/>
        <Setter Property="HorizontalAlignment" Value="Right"/>
        <Setter Property="VerticalAlignment" Value="Bottom"/>
        <Setter Property="Margin" Value="0,0,2,2"/>
        <Setter Property="Opacity" Value="0"/>
    </Style>

    <Style x:Key="MemoryStatusStyleKey" TargetType="TextBlock">
        <Setter Property="Foreground" Value="Black"/>
        <Setter Property="HorizontalAlignment" Value="Center"/>
        <Setter Property="VerticalAlignment" Value="Bottom"/>
        <Setter Property="Margin" Value="4,0,4,4"/>
    </Style>

    <ControlTemplate TargetType="{x:Type im:GcDropDownCalculator}" x:Key="GcCalculatorTemplate">
        <Border Background="{TemplateBinding Background}"
                BorderBrush="{TemplateBinding BorderBrush}"
                BorderThickness="{TemplateBinding BorderThickness}">
            <VisualStateManager.VisualStateGroups>
                <VisualStateGroup x:Name="CommonStates">
                    <VisualState x:Name="Normal"/>
                    <VisualState x:Name="Disabled">
                        <Storyboard>
                            <ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetName="PART_DisplayBlock" Storyboard.TargetProperty="Foreground">
                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource GcCalculatorDisabledForegroundBrush}"/>
                            </ObjectAnimationUsingKeyFrames>
                            <ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetName="PART_MemoryBox" Storyboard.TargetProperty="Foreground">
                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource GcCalculatorDisabledForegroundBrush}"/>
                            </ObjectAnimationUsingKeyFrames>
                            <ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetName="PART_History" Storyboard.TargetProperty="Foreground">
                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource GcCalculatorDisabledForegroundBrush}"/>
                            </ObjectAnimationUsingKeyFrames>
                            <ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetName="PART_ErrorBlock" Storyboard.TargetProperty="Foreground">
                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource GcCalculatorDisabledForegroundBrush}"/>
                            </ObjectAnimationUsingKeyFrames>
                        </Storyboard>
                    </VisualState>
                </VisualStateGroup>
                <VisualStateGroup x:Name="CalculationStates">
                    <VisualState x:Name="Empty"/>
                    <VisualState x:Name="HasErrors">
                        <Storyboard>
                            <DoubleAnimation Duration="0" Storyboard.TargetName="PART_DisplayBlock" Storyboard.TargetProperty="Opacity" To="0"/>
                            <ObjectAnimationUsingKeyFrames  Duration="0" Storyboard.TargetName="PART_DisplayBlock" Storyboard.TargetProperty="(TextBlock.Text)" FillBehavior="HoldEnd">
                                <ObjectAnimationUsingKeyFrames.KeyFrames>
                                    <DiscreteObjectKeyFrame KeyTime="0" Value=""/>
                                </ObjectAnimationUsingKeyFrames.KeyFrames>
                            </ObjectAnimationUsingKeyFrames>
                            <DoubleAnimation Duration="0" Storyboard.TargetName="PART_ErrorBlock" Storyboard.TargetProperty="Opacity" To="1"/>
                        </Storyboard>
                    </VisualState>
                </VisualStateGroup>
            </VisualStateManager.VisualStateGroups>

            <Grid Margin="{TemplateBinding Padding}">
                <Grid.RowDefinitions>
                    <RowDefinition Height="Auto" />
                    <RowDefinition />
                </Grid.RowDefinitions>
                <Border Margin="2,2,2,3" Background="White"
                        BorderBrush="{StaticResource EditorBorder}"
                        BorderThickness="1" CornerRadius="2">
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="Auto" />
                            <ColumnDefinition />
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="auto"/>
                            <RowDefinition Height="auto"/>
                        </Grid.RowDefinitions>
                        <Canvas  x:Name="PART_History_Panel" Grid.ColumnSpan="2" Height="{Binding ElementName=PART_History,Path=ActualHeight}">
                            <Border Width="{Binding ElementName=PART_History_Panel, Path=ActualWidth}">
                                <TextBlock x:Name="PART_History" Text="{TemplateBinding History}" Style="{TemplateBinding HistoryStyle}" 
                                           Opacity="{Binding Path=IsShowHistory, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BooleanToDoubleConverterKey}}"/>
                            </Border>
                        </Canvas>
                        <TextBlock x:Name="PART_MemoryBox" Grid.Row="1" Text="M"
                                   Style="{TemplateBinding MemoryStatusStyle}" 
                                   Opacity="{Binding Path=HasMemory, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource BooleanToDoubleConverterKey}}"/>
                        <TextBlock x:Name="PART_DisplayBlock" Grid.Column="1" Grid.Row="1"
                                   Text="{TemplateBinding DisplayText}" Style="{TemplateBinding OutputStyle}" />
                        <TextBlock x:Name="PART_ErrorBlock" Grid.Column="1" Grid.Row="1" Style="{TemplateBinding ErrorMessageStyle}"
                                   Text="{TemplateBinding DisplayText}"/>
                    </Grid>
                </Border>
                <Grid Grid.Row="1" >
                    <Grid.RowDefinitions>
                        <RowDefinition />
                        <RowDefinition />
                        <RowDefinition />
                        <RowDefinition />
                        <RowDefinition />
                        <RowDefinition />
                    </Grid.RowDefinitions>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition />
                        <ColumnDefinition />
                        <ColumnDefinition />
                        <ColumnDefinition />
                        <ColumnDefinition />
                    </Grid.ColumnDefinitions>
                    <imp:CalculatorButton Grid.Row="0" Grid.Column="0" Content="MC" Style="{TemplateBinding MemoryButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="MemoryClear" />
                    <imp:CalculatorButton Grid.Row="0" Grid.Column="1" Content="MR" Style="{TemplateBinding MemoryButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="MemoryRecall" />
                    <imp:CalculatorButton Grid.Row="0" Grid.Column="2" Content="MS" Style="{TemplateBinding MemoryButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="MemorySave" />
                    <imp:CalculatorButton Grid.Row="0" Grid.Column="3" Content="M+" Style="{TemplateBinding MemoryButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="MemoryPlus" />
                    <imp:CalculatorButton Grid.Row="0" Grid.Column="4" Content="M-" Style="{TemplateBinding MemoryButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="MemoryMinus"/>
                    <imp:CalculatorButton Grid.Row="1" Grid.Column="0" Content="←" Style="{TemplateBinding EditButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Backspace" />
                    <imp:CalculatorButton Grid.Row="1" Grid.Column="1" Content="CE" Style="{TemplateBinding ResetButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="CE" />
                    <imp:CalculatorButton Grid.Row="1" Grid.Column="2" Content="C" Style="{TemplateBinding ResetButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="C" />
                    <imp:CalculatorButton Grid.Row="1" Grid.Column="3" Content="±" Style="{TemplateBinding MathButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Sign" />
                    <imp:CalculatorButton Grid.Row="1" Grid.Column="4" Content="√" Style="{TemplateBinding MathButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="SquareRoot" />
                    <imp:CalculatorButton Grid.Row="2" Grid.Column="0" Content="7" Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Digit7" />
                    <imp:CalculatorButton Grid.Row="2" Grid.Column="1" Content="8" Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Digit8" />
                    <imp:CalculatorButton Grid.Row="2" Grid.Column="2" Content="9" Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Digit9" />
                    <imp:CalculatorButton Grid.Row="2" Grid.Column="3" Content="/" Style="{TemplateBinding MathButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Divide" />
                    <imp:CalculatorButton Grid.Row="2" Grid.Column="4" Content="%" Style="{TemplateBinding MathButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Percentage" />
                    <imp:CalculatorButton Grid.Row="3" Grid.Column="0" Content="4" Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Digit4" />
                    <imp:CalculatorButton Grid.Row="3" Grid.Column="1" Content="5" Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Digit5" />
                    <imp:CalculatorButton Grid.Row="3" Grid.Column="2" Content="6" Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Digit6" />
                    <imp:CalculatorButton Grid.Row="3" Grid.Column="3" Content="*" Style="{TemplateBinding MathButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Multiply" />
                    <imp:CalculatorButton Grid.Row="3" Grid.Column="4" Content="1/x" Style="{TemplateBinding MathButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Reciprocal" />
                    <imp:CalculatorButton Grid.Row="4" Grid.Column="0" Content="1" Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Digit1" />
                    <imp:CalculatorButton Grid.Row="4" Grid.Column="1" Content="2" Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Digit2" />
                    <imp:CalculatorButton Grid.Row="4" Grid.Column="2" Content="3" Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Digit3" />
                    <imp:CalculatorButton Grid.Row="4" Grid.Column="3" Content="-" Style="{TemplateBinding MathButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Subtract" />
                    <imp:CalculatorButton Grid.Row="4" Grid.Column="4" Grid.RowSpan="2" Content="=" Style="{TemplateBinding MathButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Equal" />
                    <imp:CalculatorButton Grid.Row="5" Grid.Column="0" Grid.ColumnSpan="2" Content="0" Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Digit0" />
                    <imp:CalculatorButton Grid.Row="5" Grid.Column="2" Content="." Style="{TemplateBinding NumericButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="DecimalPoint" />
                    <imp:CalculatorButton Grid.Row="5" Grid.Column="3" Content="+" Style="{TemplateBinding MathButtonStyle}" Command="{x:Static im:GcDropDownCalculator.ProcessCommand}" CommandParameter="Add" />
                </Grid>
            </Grid>
        </Border>        
    </ControlTemplate>

    <Style TargetType="{x:Type im:GcDropDownCalculator}" x:Key="GcDropDownCalculator_StyleKey">
        <Setter Property="FocusVisualStyle" Value="{StaticResource GcCalculaorFocusVisual}"/>
        <Setter Property="BorderBrush" Value="{StaticResource ListBoxBorderBrush}"/>
        <Setter Property="BorderThickness" Value="1"/>
        <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/>
        <Setter Property="Padding" Value="6"/>
        <Setter Property="Template" Value="{StaticResource GcCalculatorTemplate}"/>
        <Setter Property="EditButtonStyle" Value="{StaticResource EditButtonStyleKey}"/>
        <Setter Property="MathButtonStyle" Value="{StaticResource MathButtonStyleKey}"/>
        <Setter Property="MemoryButtonStyle" Value="{StaticResource MemoryButtonStyleKey}"/>
        <Setter Property="NumericButtonStyle" Value="{StaticResource NumericButtonStyleKey}"/>
        <Setter Property="ResetButtonStyle" Value="{StaticResource ResetButtonStyleKey}"/>
        <Setter Property="MemoryStatusStyle" Value="{StaticResource MemoryStatusStyleKey}"/>
        <Setter Property="OutputStyle" Value="{StaticResource OutputStyleKey}"/>
        <Setter Property="HistoryStyle" Value="{StaticResource HistoryStyleKey}"/>
        <Setter Property="ErrorMessageStyle" Value="{StaticResource ErrorMessageStyleKey}"/>
    </Style>
    <Style TargetType="im:GcDropDownCalculator" BasedOn="{StaticResource GcDropDownCalculator_StyleKey}"/>
</ResourceDictionary>