Improved 'Smart Hint' demo app page

MainDemo.Wpf/Domain/SmartHintViewModel.cs

@@ -4,6 +4,8 @@ namespace MaterialDesignDemo.Domain;
 
 internal class SmartHintViewModel : ViewModelBase
 {
+    public static Point DefaultFloatingOffset { get; } = new(0, -16);
+
     private bool _floatHint = true;
     private FloatingHintHorizontalAlignment _selectedAlignment = FloatingHintHorizontalAlignment.Inherit;
     private double _selectedFloatingScale = 0.75;
@@ -12,7 +14,7 @@ internal class SmartHintViewModel : ViewModelBase
     private bool _showTrailingIcon = true;
     private string _hintText = "Hint text";
     private string _helperText = "Helper text";
-    private Point _selectedFloatingOffset = new(0, -16);
+    private Point _selectedFloatingOffset = DefaultFloatingOffset;
     private bool _applyCustomPadding;
     private Thickness _selectedCustomPadding = new(5);
     private double _selectedCustomHeight = double.NaN;
@@ -24,7 +26,7 @@ internal class SmartHintViewModel : ViewModelBase
 
     public IEnumerable<FloatingHintHorizontalAlignment> HorizontalAlignmentOptions { get; } = Enum.GetValues(typeof(FloatingHintHorizontalAlignment)).OfType<FloatingHintHorizontalAlignment>();
     public IEnumerable<double> FloatingScaleOptions { get; } = new[] {0.25, 0.5, 0.75, 1.0};
-    public IEnumerable<Point> FloatingOffsetOptions { get; } = new[] { new Point(0, -16), new Point(0, 16), new Point(16, 16), new Point(-16, -16), new Point(0, -40) };
+    public IEnumerable<Point> FloatingOffsetOptions { get; } = new[] { DefaultFloatingOffset, new Point(0, -25), new Point(16, -16), new Point(-16, -16), new Point(0, -50) };
     public IEnumerable<string> ComboBoxOptions { get; } = new[] {"Option 1", "Option 2", "Option 3"};
     public IEnumerable<Thickness> CustomPaddingOptions { get; } = new [] { new Thickness(0), new Thickness(5), new Thickness(10), new Thickness(15) };
     public IEnumerable<double> CustomHeightOptions { get; } = new[] { double.NaN, 50, 75, 100 };

MainDemo.Wpf/SmartHint.xaml

@@ -7,6 +7,7 @@
              xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
              xmlns:domain="clr-namespace:MaterialDesignDemo.Domain"
              xmlns:local="clr-namespace:MaterialDesignDemo"
+             xmlns:system="clr-namespace:System;assembly=System.Runtime"
              mc:Ignorable="d"
              x:Name="_root"
              d:DataContext="{d:DesignInstance domain:SmartHintViewModel, IsDesignTimeCreatable=False}"
@@ -31,6 +32,16 @@
       </Style>
       <materialDesign:PackIconKind x:Key="LeadingIcon">Github</materialDesign:PackIconKind>
       <materialDesign:PackIconKind x:Key="TrailingIcon">Fungus</materialDesign:PackIconKind>
+
+      <local:DoubleOptionToStringConverter x:Key="DoubleOptionToStringConverter" DefaultValue="{x:Static system:Double.NaN}" />
+      <DataTemplate x:Key="CustomHeightTemplate" DataType="{x:Type system:Double}">
+        <TextBlock Text="{Binding Converter={StaticResource DoubleOptionToStringConverter}}" />
+      </DataTemplate>
+
+      <local:PointOptionToStringConverter x:Key="FloatingOffsetOptionToStringConverter" DefaultValue="{x:Static domain:SmartHintViewModel.DefaultFloatingOffset}" />
+      <DataTemplate x:Key="FloatingOffsetTemplate">
+        <TextBlock Text="{Binding Converter={StaticResource FloatingOffsetOptionToStringConverter}}" />
+      </DataTemplate>
     </Grid.Resources>
 
     <Grid.RowDefinitions>
@@ -49,7 +60,7 @@
           <TextBlock Text="FloatingScale:" VerticalAlignment="Center" Margin="20,0,0,0" />
           <ComboBox VerticalAlignment="Center" Margin="5,0,0,0" ItemsSource="{Binding FloatingScaleOptions}" SelectedItem="{Binding SelectedFloatingScale, Mode=TwoWay}" ItemStringFormat="F2" />
           <TextBlock Text="FloatingOffset:" VerticalAlignment="Center" Margin="20,0,0,0" />
-          <ComboBox VerticalAlignment="Center" Margin="5,0,0,0" ItemsSource="{Binding FloatingOffsetOptions}" SelectedItem="{Binding SelectedFloatingOffset, Mode=TwoWay}" />
+          <ComboBox VerticalAlignment="Center" Margin="5,0,0,0" ItemsSource="{Binding FloatingOffsetOptions}" SelectedItem="{Binding SelectedFloatingOffset, Mode=TwoWay}" ItemTemplate="{StaticResource FloatingOffsetTemplate}" />
           <CheckBox Content="HasClearButton" IsChecked="{Binding ShowClearButton}" Margin="20,0,0,0" />
           <CheckBox Content="HasErrors" IsChecked="False" Checked="HasErrors_OnToggled" Unchecked="HasErrors_OnToggled" Margin="20,0,0,0" />
         </StackPanel>
@@ -71,8 +82,8 @@
       <StackPanel Orientation="Horizontal" Margin="10">
         <CheckBox x:Name="CustomPaddingCheckBox" Content="Custom Padding" IsChecked="{Binding ApplyCustomPadding}" />
         <ComboBox VerticalAlignment="Center" Margin="5,0,0,0" ItemsSource="{Binding CustomPaddingOptions}" SelectedItem="{Binding SelectedCustomPadding, Mode=TwoWay}" IsEnabled="{Binding ElementName=CustomPaddingCheckBox, Path=IsChecked}" />
-        <TextBlock Text="Custom Height:" VerticalAlignment="Center" Margin="20,0,0,0" />
-        <ComboBox VerticalAlignment="Center" Margin="5,0,0,0" ItemsSource="{Binding CustomHeightOptions}" SelectedItem="{Binding SelectedCustomHeight, Mode=TwoWay}" />
+        <TextBlock Text="Height:" VerticalAlignment="Center" Margin="20,0,0,0" />
+        <ComboBox VerticalAlignment="Center" Margin="5,0,0,0" ItemsSource="{Binding CustomHeightOptions}" SelectedItem="{Binding SelectedCustomHeight, Mode=TwoWay}" ItemTemplate="{StaticResource CustomHeightTemplate}"/>
         <TextBlock Text="VerticalContentAlignment:" VerticalAlignment="Center" Margin="20,0,0,0" />
         <ComboBox VerticalAlignment="Center" Margin="5,0,0,0" ItemsSource="{Binding VerticalAlignmentOptions}" SelectedItem="{Binding SelectedVerticalAlignment, Mode=TwoWay}" />
         <TextBox Text="{Binding PrefixText, UpdateSourceTrigger=PropertyChanged}" materialDesign:HintAssist.Hint="Prefix text" materialDesign:TextFieldAssist.HasClearButton="True" Margin="20,0,0,0" Width="200" MaxLength="3" />

MainDemo.Wpf/SmartHint.xaml.cs

@@ -97,3 +97,26 @@ public object Convert(object[] values, Type targetType, object parameter, Cultur
     public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
         => throw new NotImplementedException();
 }
+
+internal abstract class OptionToStringConverter<TOptionType> : IValueConverter where TOptionType : notnull 
+{
+    public TOptionType? DefaultValue { get; set; }
+
+    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
+        => Equals(value, DefaultValue) ? "Default" : ToString((TOptionType)value!, culture);
+
+    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+        => throw new NotImplementedException();
+
+    protected abstract string ToString(TOptionType? value, CultureInfo culture);
+}
+
+internal class DoubleOptionToStringConverter : OptionToStringConverter<double>
+{
+    protected override string ToString(double value, CultureInfo culture) => value.ToString(culture);
+}
+
+internal class PointOptionToStringConverter : OptionToStringConverter<Point>
+{
+    protected override string ToString(Point value, CultureInfo culture) => value.ToString(culture);
+}