Benedikt Schroeder
8 years ago
committed by
GitHub
GitHub
13 changed files with 1307 additions and 5 deletions
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<UserControl xmlns="https://github.com/avaloniaui" |
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> |
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<StackPanel Orientation="Vertical" Gap="4"> |
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<TextBlock Margin="2" Classes="h1">Numeric up-down control</TextBlock> |
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<TextBlock Margin="2" Classes="h2" TextWrapping="Wrap">Numeric up-down control provides a TextBox with button spinners that allow incrementing and decrementing numeric values by using the spinner buttons, keyboard up/down arrows, or mouse wheel.</TextBlock> |
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<TextBlock Margin="2,5,2,2" FontSize="14" FontWeight="Bold">Features:</TextBlock> |
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<Grid Margin="2" ColumnDefinitions="Auto,Auto,Auto,Auto" RowDefinitions="Auto,Auto"> |
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<Grid Grid.Row="0" Grid.Column="0" ColumnDefinitions="Auto, Auto" RowDefinitions="35,35,35,35,35"> |
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<TextBlock Grid.Row="0" Grid.Column="0" VerticalAlignment="Center" Margin="2">ShowButtonSpinner:</TextBlock> |
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<CheckBox Grid.Row="0" Grid.Column="1" IsChecked="{Binding #upDown.ShowButtonSpinner}" VerticalAlignment="Center" Margin="2"/> |
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|
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<TextBlock Grid.Row="1" Grid.Column="0" VerticalAlignment="Center" Margin="2">IsReadOnly:</TextBlock> |
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<CheckBox Grid.Row="1" Grid.Column="1" IsChecked="{Binding #upDown.IsReadOnly}" VerticalAlignment="Center" Margin="2"/> |
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<TextBlock Grid.Row="2" Grid.Column="0" VerticalAlignment="Center" Margin="2">AllowSpin:</TextBlock> |
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<CheckBox Grid.Row="2" Grid.Column="1" IsChecked="{Binding #upDown.AllowSpin}" IsEnabled="{Binding #upDown.!IsReadOnly}" VerticalAlignment="Center" Margin="2"/> |
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<TextBlock Grid.Row="3" Grid.Column="0" VerticalAlignment="Center" Margin="2">ClipValueToMinMax:</TextBlock> |
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<CheckBox Grid.Row="3" Grid.Column="1" IsChecked="{Binding #upDown.ClipValueToMinMax}" VerticalAlignment="Center" Margin="2"/> |
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</Grid> |
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<Grid Grid.Row="0" Grid.Column="1" Margin="10,2,2,2" ColumnDefinitions="Auto, 120" RowDefinitions="35,35,35,35,35"> |
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<TextBlock Grid.Row="0" Grid.Column="0" VerticalAlignment="Center" Margin="2">FormatString:</TextBlock> |
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<DropDown Grid.Row="0" Grid.Column="1" Items="{Binding Formats}" SelectedItem="{Binding SelectedFormat}" |
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VerticalAlignment="Center" Margin="2"> |
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<DropDown.ItemTemplate> |
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<DataTemplate> |
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<StackPanel Orientation="Horizontal" Gap="2"> |
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<TextBlock Text="{Binding Name}"/> |
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<TextBlock Text="-"/> |
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<TextBlock Text="{Binding Value}"/> |
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</StackPanel> |
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</DataTemplate> |
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</DropDown.ItemTemplate> |
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</DropDown> |
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<TextBlock Grid.Row="1" Grid.Column="0" VerticalAlignment="Center" Margin="2">ButtonSpinnerLocation:</TextBlock> |
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<DropDown Grid.Row="1" Grid.Column="1" Items="{Binding SpinnerLocations}" SelectedItem="{Binding #upDown.ButtonSpinnerLocation}" |
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VerticalAlignment="Center" Margin="2"/> |
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|
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<TextBlock Grid.Row="2" Grid.Column="0" VerticalAlignment="Center" Margin="2">CultureInfo:</TextBlock> |
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<DropDown Grid.Row="2" Grid.Column="1" Items="{Binding Cultures}" SelectedItem="{Binding #upDown.CultureInfo}" |
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VerticalAlignment="Center" Margin="2"/> |
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<TextBlock Grid.Row="3" Grid.Column="0" VerticalAlignment="Center" Margin="2">Watermark:</TextBlock> |
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<TextBox Grid.Row="3" Grid.Column="1" Text="{Binding #upDown.Watermark}" VerticalAlignment="Center" Margin="2" /> |
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<TextBlock Grid.Row="4" Grid.Column="0" VerticalAlignment="Center" Margin="2">Text:</TextBlock> |
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<TextBox Grid.Row="4" Grid.Column="1" Text="{Binding #upDown.Text}" VerticalAlignment="Center" Margin="2" /> |
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</Grid> |
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<Grid Grid.Row="0" Grid.Column="2" Margin="10,2,2,2" RowDefinitions="35,35,35,35,35" ColumnDefinitions="Auto, 120"> |
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<TextBlock Grid.Row="0" Grid.Column="0" VerticalAlignment="Center" Margin="10,2,2,2">Minimum:</TextBlock> |
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<NumericUpDown Grid.Row="0" Grid.Column="1" Value="{Binding #upDown.Minimum}" |
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CultureInfo="{Binding #upDown.CultureInfo}" VerticalAlignment="Center" Height="25" Margin="2" Width="70" HorizontalAlignment="Center"/> |
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<TextBlock Grid.Row="1" Grid.Column="0" VerticalAlignment="Center" Margin="10,2,2,2">Maximum:</TextBlock> |
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<NumericUpDown Grid.Row="1" Grid.Column="1" Value="{Binding #upDown.Maximum}" |
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CultureInfo="{Binding #upDown.CultureInfo}" VerticalAlignment="Center" Height="25" Margin="2" Width="70" HorizontalAlignment="Center"/> |
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<TextBlock Grid.Row="2" Grid.Column="0" VerticalAlignment="Center" Margin="10,2,2,2">Increment:</TextBlock> |
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<NumericUpDown Grid.Row="2" Grid.Column="1" Value="{Binding #upDown.Increment}" VerticalAlignment="Center" |
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Height="25" Margin="2" Width="70" HorizontalAlignment="Center"/> |
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<TextBlock Grid.Row="3" Grid.Column="0" VerticalAlignment="Center" Margin="10,2,2,2">Value:</TextBlock> |
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<NumericUpDown Grid.Row="3" Grid.Column="1" Value="{Binding #upDown.Value}" VerticalAlignment="Center" |
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Height="25" Margin="2" Width="70" HorizontalAlignment="Center"/> |
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</Grid> |
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</Grid> |
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<StackPanel Margin="2,10,2,2" Orientation="Horizontal" Gap="10"> |
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<TextBlock FontSize="14" FontWeight="Bold" VerticalAlignment="Center">Usage of NumericUpDown:</TextBlock> |
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<NumericUpDown Name="upDown" Minimum="0" Maximum="10" Increment="0.5" |
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CultureInfo="en-US" VerticalAlignment="Center" Height="25" Width="100" |
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Watermark="Enter text" FormatString="{Binding SelectedFormat.Value}"/> |
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</StackPanel> |
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</StackPanel> |
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</UserControl> |
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using System; |
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using System.Collections.Generic; |
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using System.Globalization; |
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using System.Linq; |
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using Avalonia; |
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using Avalonia.Controls; |
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using Avalonia.Controls.Primitives; |
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using Avalonia.Markup.Xaml; |
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using ReactiveUI; |
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namespace ControlCatalog.Pages |
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{ |
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public class NumericUpDownPage : UserControl |
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{ |
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public NumericUpDownPage() |
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{ |
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this.InitializeComponent(); |
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var viewModel = new NumbersPageViewModel(); |
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DataContext = viewModel; |
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} |
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private void InitializeComponent() |
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{ |
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AvaloniaXamlLoader.Load(this); |
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} |
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} |
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public class NumbersPageViewModel : ReactiveObject |
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{ |
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private IList<FormatObject> _formats; |
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private FormatObject _selectedFormat; |
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private IList<Location> _spinnerLocations; |
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public NumbersPageViewModel() |
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{ |
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SelectedFormat = Formats.FirstOrDefault(); |
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} |
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public IList<FormatObject> Formats |
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{ |
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get |
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{ |
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return _formats ?? (_formats = new List<FormatObject>() |
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{ |
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new FormatObject() {Name = "Currency", Value = "C2"}, |
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new FormatObject() {Name = "Fixed point", Value = "F2"}, |
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new FormatObject() {Name = "General", Value = "G"}, |
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new FormatObject() {Name = "Number", Value = "N"}, |
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new FormatObject() {Name = "Percent", Value = "P"}, |
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new FormatObject() {Name = "Degrees", Value = "{0:N2} °"}, |
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}); |
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} |
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} |
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public IList<Location> SpinnerLocations |
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{ |
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get |
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{ |
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if (_spinnerLocations == null) |
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{ |
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_spinnerLocations = new List<Location>(); |
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foreach (Location value in Enum.GetValues(typeof(Location))) |
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{ |
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_spinnerLocations.Add(value); |
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} |
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} |
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return _spinnerLocations ; |
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} |
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} |
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public IList<CultureInfo> Cultures { get; } = new List<CultureInfo>() |
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{ |
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new CultureInfo("en-US"), |
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new CultureInfo("en-GB"), |
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new CultureInfo("fr-FR"), |
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new CultureInfo("ar-DZ"), |
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new CultureInfo("zh-CN"), |
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new CultureInfo("cs-CZ") |
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}; |
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public FormatObject SelectedFormat |
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{ |
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get { return _selectedFormat; } |
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set { this.RaiseAndSetIfChanged(ref _selectedFormat, value); } |
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} |
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} |
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public class FormatObject |
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{ |
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public string Value { get; set; } |
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public string Name { get; set; } |
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} |
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} |
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@ -0,0 +1,998 @@ |
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using System; |
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using System.Globalization; |
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using System.IO; |
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using System.Linq; |
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using Avalonia.Controls.Primitives; |
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using Avalonia.Data; |
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using Avalonia.Input; |
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using Avalonia.Interactivity; |
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using Avalonia.Threading; |
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using Avalonia.Utilities; |
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|
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namespace Avalonia.Controls |
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{ |
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/// <summary>
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/// Control that represents a TextBox with button spinners that allow incrementing and decrementing numeric values.
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/// </summary>
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public class NumericUpDown : TemplatedControl |
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{ |
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/// <summary>
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/// Defines the <see cref="AllowSpin"/> property.
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/// </summary>
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public static readonly StyledProperty<bool> AllowSpinProperty = |
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ButtonSpinner.AllowSpinProperty.AddOwner<NumericUpDown>(); |
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/// <summary>
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/// Defines the <see cref="ButtonSpinnerLocation"/> property.
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/// </summary>
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public static readonly StyledProperty<Location> ButtonSpinnerLocationProperty = |
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ButtonSpinner.ButtonSpinnerLocationProperty.AddOwner<NumericUpDown>(); |
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/// <summary>
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/// Defines the <see cref="ShowButtonSpinner"/> property.
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/// </summary>
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public static readonly StyledProperty<bool> ShowButtonSpinnerProperty = |
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ButtonSpinner.ShowButtonSpinnerProperty.AddOwner<NumericUpDown>(); |
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/// <summary>
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/// Defines the <see cref="ClipValueToMinMax"/> property.
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/// </summary>
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public static readonly DirectProperty<NumericUpDown, bool> ClipValueToMinMaxProperty = |
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AvaloniaProperty.RegisterDirect<NumericUpDown, bool>(nameof(ClipValueToMinMax), |
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updown => updown.ClipValueToMinMax, (updown, b) => updown.ClipValueToMinMax = b); |
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/// <summary>
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/// Defines the <see cref="CultureInfo"/> property.
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/// </summary>
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public static readonly DirectProperty<NumericUpDown, CultureInfo> CultureInfoProperty = |
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AvaloniaProperty.RegisterDirect<NumericUpDown, CultureInfo>(nameof(CultureInfo), o => o.CultureInfo, |
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(o, v) => o.CultureInfo = v, CultureInfo.CurrentCulture); |
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/// <summary>
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/// Defines the <see cref="FormatString"/> property.
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/// </summary>
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public static readonly StyledProperty<string> FormatStringProperty = |
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AvaloniaProperty.Register<NumericUpDown, string>(nameof(FormatString), string.Empty); |
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/// <summary>
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/// Defines the <see cref="Increment"/> property.
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/// </summary>
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public static readonly StyledProperty<double> IncrementProperty = |
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AvaloniaProperty.Register<NumericUpDown, double>(nameof(Increment), 1.0d, validate: OnCoerceIncrement); |
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/// <summary>
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/// Defines the <see cref="IsReadOnly"/> property.
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/// </summary>
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public static readonly StyledProperty<bool> IsReadOnlyProperty = |
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AvaloniaProperty.Register<NumericUpDown, bool>(nameof(IsReadOnly)); |
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/// <summary>
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/// Defines the <see cref="Maximum"/> property.
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/// </summary>
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public static readonly StyledProperty<double> MaximumProperty = |
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AvaloniaProperty.Register<NumericUpDown, double>(nameof(Maximum), double.MaxValue, validate: OnCoerceMaximum); |
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/// <summary>
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/// Defines the <see cref="Minimum"/> property.
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/// </summary>
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public static readonly StyledProperty<double> MinimumProperty = |
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AvaloniaProperty.Register<NumericUpDown, double>(nameof(Minimum), double.MinValue, validate: OnCoerceMinimum); |
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/// <summary>
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/// Defines the <see cref="ParsingNumberStyle"/> property.
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/// </summary>
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public static readonly DirectProperty<NumericUpDown, NumberStyles> ParsingNumberStyleProperty = |
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AvaloniaProperty.RegisterDirect<NumericUpDown, NumberStyles>(nameof(ParsingNumberStyle), |
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updown => updown.ParsingNumberStyle, (updown, style) => updown.ParsingNumberStyle = style); |
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/// <summary>
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/// Defines the <see cref="Text"/> property.
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/// </summary>
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public static readonly DirectProperty<NumericUpDown, string> TextProperty = |
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AvaloniaProperty.RegisterDirect<NumericUpDown, string>(nameof(Text), o => o.Text, (o, v) => o.Text = v, |
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defaultBindingMode: BindingMode.TwoWay); |
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/// <summary>
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/// Defines the <see cref="Value"/> property.
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/// </summary>
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public static readonly DirectProperty<NumericUpDown, double> ValueProperty = |
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AvaloniaProperty.RegisterDirect<NumericUpDown, double>(nameof(Value), updown => updown.Value, |
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(updown, v) => updown.Value = v, defaultBindingMode: BindingMode.TwoWay); |
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/// <summary>
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/// Defines the <see cref="Watermark"/> property.
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/// </summary>
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public static readonly StyledProperty<string> WatermarkProperty = |
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AvaloniaProperty.Register<NumericUpDown, string>(nameof(Watermark)); |
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private IDisposable _textBoxTextChangedSubscription; |
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private double _value; |
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private string _text; |
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private bool _internalValueSet; |
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private bool _clipValueToMinMax; |
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private bool _isSyncingTextAndValueProperties; |
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private bool _isTextChangedFromUI; |
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private CultureInfo _cultureInfo; |
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private NumberStyles _parsingNumberStyle = NumberStyles.Any; |
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/// <summary>
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/// Gets the Spinner template part.
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/// </summary>
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private Spinner Spinner { get; set; } |
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/// <summary>
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/// Gets the TextBox template part.
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/// </summary>
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private TextBox TextBox { get; set; } |
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/// <summary>
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/// Gets or sets the ability to perform increment/decrement operations via the keyboard, button spinners, or mouse wheel.
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/// </summary>
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public bool AllowSpin |
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{ |
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get { return GetValue(AllowSpinProperty); } |
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set { SetValue(AllowSpinProperty, value); } |
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} |
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/// <summary>
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/// Gets or sets current location of the <see cref="ButtonSpinner"/>.
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/// </summary>
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public Location ButtonSpinnerLocation |
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{ |
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get { return GetValue(ButtonSpinnerLocationProperty); } |
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set { SetValue(ButtonSpinnerLocationProperty, value); } |
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} |
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/// <summary>
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/// Gets or sets a value indicating whether the spin buttons should be shown.
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/// </summary>
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public bool ShowButtonSpinner |
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{ |
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get { return GetValue(ShowButtonSpinnerProperty); } |
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set { SetValue(ShowButtonSpinnerProperty, value); } |
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} |
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/// <summary>
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/// Gets or sets if the value should be clipped when minimum/maximum is reached.
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/// </summary>
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public bool ClipValueToMinMax |
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{ |
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get { return _clipValueToMinMax; } |
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set { SetAndRaise(ClipValueToMinMaxProperty, ref _clipValueToMinMax, value); } |
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} |
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/// <summary>
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/// Gets or sets the current CultureInfo.
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/// </summary>
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public CultureInfo CultureInfo |
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{ |
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get { return _cultureInfo; } |
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set { SetAndRaise(CultureInfoProperty, ref _cultureInfo, value); } |
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} |
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/// <summary>
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/// Gets or sets the display format of the <see cref="Value"/>.
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/// </summary>
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public string FormatString |
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{ |
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get { return GetValue(FormatStringProperty); } |
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set { SetValue(FormatStringProperty, value); } |
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} |
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/// <summary>
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/// Gets or sets the amount in which to increment the <see cref="Value"/>.
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/// </summary>
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public double Increment |
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{ |
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get { return GetValue(IncrementProperty); } |
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set { SetValue(IncrementProperty, value); } |
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} |
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/// <summary>
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/// Gets or sets if the control is read only.
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/// </summary>
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public bool IsReadOnly |
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{ |
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get { return GetValue(IsReadOnlyProperty); } |
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set { SetValue(IsReadOnlyProperty, value); } |
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} |
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/// <summary>
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/// Gets or sets the maximum allowed value.
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/// </summary>
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public double Maximum |
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{ |
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get { return GetValue(MaximumProperty); } |
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set { SetValue(MaximumProperty, value); } |
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} |
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/// <summary>
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/// Gets or sets the minimum allowed value.
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/// </summary>
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public double Minimum |
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{ |
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get { return GetValue(MinimumProperty); } |
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set { SetValue(MinimumProperty, value); } |
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} |
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/// <summary>
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/// Gets or sets the parsing style (AllowLeadingWhite, Float, AllowHexSpecifier, ...). By default, Any.
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/// </summary>
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public NumberStyles ParsingNumberStyle |
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{ |
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get { return _parsingNumberStyle; } |
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set { SetAndRaise(ParsingNumberStyleProperty, ref _parsingNumberStyle, value); } |
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} |
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/// <summary>
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/// Gets or sets the formatted string representation of the value.
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/// </summary>
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public string Text |
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{ |
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get { return _text; } |
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set { SetAndRaise(TextProperty, ref _text, value); } |
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} |
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/// <summary>
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/// Gets or sets the value.
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/// </summary>
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public double Value |
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{ |
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get { return _value; } |
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set |
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{ |
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value = OnCoerceValue(value); |
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SetAndRaise(ValueProperty, ref _value, value); |
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} |
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} |
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/// <summary>
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/// Gets or sets the object to use as a watermark if the <see cref="Value"/> is null.
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/// </summary>
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public string Watermark |
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{ |
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get { return GetValue(WatermarkProperty); } |
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set { SetValue(WatermarkProperty, value); } |
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} |
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/// <summary>
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/// Initializes new instance of <see cref="NumericUpDown"/> class.
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/// </summary>
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public NumericUpDown() |
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{ |
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Initialized += (sender, e) => |
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{ |
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if (!_internalValueSet && IsInitialized) |
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{ |
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SyncTextAndValueProperties(false, null, true); |
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} |
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SetValidSpinDirection(); |
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}; |
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} |
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/// <summary>
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/// Initializes static members of the <see cref="NumericUpDown"/> class.
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/// </summary>
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static NumericUpDown() |
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{ |
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CultureInfoProperty.Changed.Subscribe(OnCultureInfoChanged); |
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FormatStringProperty.Changed.Subscribe(FormatStringChanged); |
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IncrementProperty.Changed.Subscribe(IncrementChanged); |
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IsReadOnlyProperty.Changed.Subscribe(OnIsReadOnlyChanged); |
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MaximumProperty.Changed.Subscribe(OnMaximumChanged); |
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MinimumProperty.Changed.Subscribe(OnMinimumChanged); |
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TextProperty.Changed.Subscribe(OnTextChanged); |
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ValueProperty.Changed.Subscribe(OnValueChanged); |
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} |
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/// <inheritdoc />
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protected override void OnTemplateApplied(TemplateAppliedEventArgs e) |
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{ |
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if (TextBox != null) |
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{ |
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TextBox.PointerPressed -= TextBoxOnPointerPressed; |
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_textBoxTextChangedSubscription?.Dispose(); |
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} |
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TextBox = e.NameScope.Find<TextBox>("PART_TextBox"); |
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if (TextBox != null) |
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{ |
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TextBox.Text = Text; |
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TextBox.PointerPressed += TextBoxOnPointerPressed; |
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_textBoxTextChangedSubscription = TextBox.GetObservable(TextBox.TextProperty).Subscribe(txt => TextBoxOnTextChanged()); |
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} |
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if (Spinner != null) |
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{ |
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Spinner.Spin -= OnSpinnerSpin; |
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} |
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Spinner = e.NameScope.Find<Spinner>("PART_Spinner"); |
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if (Spinner != null) |
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{ |
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Spinner.Spin += OnSpinnerSpin; |
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} |
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|||
SetValidSpinDirection(); |
|||
} |
|||
|
|||
/// <inheritdoc />
|
|||
protected override void OnKeyDown(KeyEventArgs e) |
|||
{ |
|||
switch (e.Key) |
|||
{ |
|||
case Key.Enter: |
|||
var commitSuccess = CommitInput(); |
|||
e.Handled = !commitSuccess; |
|||
break; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="CultureInfo"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="oldValue">The old value.</param>
|
|||
/// <param name="newValue">The new value.</param>
|
|||
protected virtual void OnCultureInfoChanged(CultureInfo oldValue, CultureInfo newValue) |
|||
{ |
|||
if (IsInitialized) |
|||
{ |
|||
SyncTextAndValueProperties(false, null); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="FormatString"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="oldValue">The old value.</param>
|
|||
/// <param name="newValue">The new value.</param>
|
|||
protected virtual void OnFormatStringChanged(string oldValue, string newValue) |
|||
{ |
|||
if (IsInitialized) |
|||
{ |
|||
SyncTextAndValueProperties(false, null); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Increment"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="oldValue">The old value.</param>
|
|||
/// <param name="newValue">The new value.</param>
|
|||
protected virtual void OnIncrementChanged(double oldValue, double newValue) |
|||
{ |
|||
if (IsInitialized) |
|||
{ |
|||
SetValidSpinDirection(); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="IsReadOnly"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="oldValue">The old value.</param>
|
|||
/// <param name="newValue">The new value.</param>
|
|||
protected virtual void OnIsReadOnlyChanged(bool oldValue, bool newValue) |
|||
{ |
|||
SetValidSpinDirection(); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Maximum"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="oldValue">The old value.</param>
|
|||
/// <param name="newValue">The new value.</param>
|
|||
protected virtual void OnMaximumChanged(double oldValue, double newValue) |
|||
{ |
|||
if (IsInitialized) |
|||
{ |
|||
SetValidSpinDirection(); |
|||
} |
|||
if (ClipValueToMinMax) |
|||
{ |
|||
Value = MathUtilities.Clamp(Value, Minimum, Maximum); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Minimum"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="oldValue">The old value.</param>
|
|||
/// <param name="newValue">The new value.</param>
|
|||
protected virtual void OnMinimumChanged(double oldValue, double newValue) |
|||
{ |
|||
if (IsInitialized) |
|||
{ |
|||
SetValidSpinDirection(); |
|||
} |
|||
if (ClipValueToMinMax) |
|||
{ |
|||
Value = MathUtilities.Clamp(Value, Minimum, Maximum); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Text"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="oldValue">The old value.</param>
|
|||
/// <param name="newValue">The new value.</param>
|
|||
protected virtual void OnTextChanged(string oldValue, string newValue) |
|||
{ |
|||
if (IsInitialized) |
|||
{ |
|||
SyncTextAndValueProperties(true, Text); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Value"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="oldValue">The old value.</param>
|
|||
/// <param name="newValue">The new value.</param>
|
|||
protected virtual void OnValueChanged(double oldValue, double newValue) |
|||
{ |
|||
if (!_internalValueSet && IsInitialized) |
|||
{ |
|||
SyncTextAndValueProperties(false, null, true); |
|||
} |
|||
|
|||
SetValidSpinDirection(); |
|||
|
|||
RaiseValueChangedEvent(oldValue, newValue); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Increment"/> property has to be coerced.
|
|||
/// </summary>
|
|||
/// <param name="baseValue">The value.</param>
|
|||
protected virtual double OnCoerceIncrement(double baseValue) |
|||
{ |
|||
return baseValue; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Maximum"/> property has to be coerced.
|
|||
/// </summary>
|
|||
/// <param name="baseValue">The value.</param>
|
|||
protected virtual double OnCoerceMaximum(double baseValue) |
|||
{ |
|||
return Math.Max(baseValue, Minimum); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Minimum"/> property has to be coerced.
|
|||
/// </summary>
|
|||
/// <param name="baseValue">The value.</param>
|
|||
protected virtual double OnCoerceMinimum(double baseValue) |
|||
{ |
|||
return Math.Min(baseValue, Maximum); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Value"/> property has to be coerced.
|
|||
/// </summary>
|
|||
/// <param name="baseValue">The value.</param>
|
|||
protected virtual double OnCoerceValue(double baseValue) |
|||
{ |
|||
return baseValue; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Raises the OnSpin event when spinning is initiated by the end-user.
|
|||
/// </summary>
|
|||
/// <param name="e">The event args.</param>
|
|||
protected virtual void OnSpin(SpinEventArgs e) |
|||
{ |
|||
if (e == null) |
|||
{ |
|||
throw new ArgumentNullException("e"); |
|||
} |
|||
|
|||
var handler = Spinned; |
|||
handler?.Invoke(this, e); |
|||
|
|||
if (e.Direction == SpinDirection.Increase) |
|||
{ |
|||
DoIncrement(); |
|||
} |
|||
else |
|||
{ |
|||
DoDecrement(); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Raises the <see cref="ValueChanged"/> event.
|
|||
/// </summary>
|
|||
/// <param name="oldValue">The old value.</param>
|
|||
/// <param name="newValue">The new value.</param>
|
|||
protected virtual void RaiseValueChangedEvent(double oldValue, double newValue) |
|||
{ |
|||
var e = new NumericUpDownValueChangedEventArgs(ValueChangedEvent, oldValue, newValue); |
|||
RaiseEvent(e); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Converts the formatted text to a value.
|
|||
/// </summary>
|
|||
private double ConvertTextToValue(string text) |
|||
{ |
|||
double result = 0; |
|||
|
|||
if (string.IsNullOrEmpty(text)) |
|||
{ |
|||
return result; |
|||
} |
|||
|
|||
// Since the conversion from Value to text using a FormartString may not be parsable,
|
|||
// we verify that the already existing text is not the exact same value.
|
|||
var currentValueText = ConvertValueToText(); |
|||
if (Equals(currentValueText, text)) |
|||
{ |
|||
return Value; |
|||
} |
|||
|
|||
result = ConvertTextToValueCore(currentValueText, text); |
|||
|
|||
if (ClipValueToMinMax) |
|||
{ |
|||
return MathUtilities.Clamp(result, Minimum, Maximum); |
|||
} |
|||
|
|||
ValidateMinMax(result); |
|||
|
|||
return result; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Converts the value to formatted text.
|
|||
/// </summary>
|
|||
/// <returns></returns>
|
|||
private string ConvertValueToText() |
|||
{ |
|||
//Manage FormatString of type "{}{0:N2} °" (in xaml) or "{0:N2} °" in code-behind.
|
|||
if (FormatString.Contains("{0")) |
|||
{ |
|||
return string.Format(CultureInfo, FormatString, Value); |
|||
} |
|||
|
|||
return Value.ToString(FormatString, CultureInfo); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called by OnSpin when the spin direction is SpinDirection.Increase.
|
|||
/// </summary>
|
|||
private void OnIncrement() |
|||
{ |
|||
var result = Value + Increment; |
|||
Value = MathUtilities.Clamp(result, Minimum, Maximum); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called by OnSpin when the spin direction is SpinDirection.Descrease.
|
|||
/// </summary>
|
|||
private void OnDecrement() |
|||
{ |
|||
var result = Value - Increment; |
|||
Value = MathUtilities.Clamp(result, Minimum, Maximum); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Sets the valid spin directions.
|
|||
/// </summary>
|
|||
private void SetValidSpinDirection() |
|||
{ |
|||
var validDirections = ValidSpinDirections.None; |
|||
|
|||
// Zero increment always prevents spin.
|
|||
if (Increment != 0 && !IsReadOnly) |
|||
{ |
|||
if (Value < Maximum) |
|||
{ |
|||
validDirections = validDirections | ValidSpinDirections.Increase; |
|||
} |
|||
|
|||
if (Value > Minimum) |
|||
{ |
|||
validDirections = validDirections | ValidSpinDirections.Decrease; |
|||
} |
|||
} |
|||
|
|||
if (Spinner != null) |
|||
{ |
|||
Spinner.ValidSpinDirection = validDirections; |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="CultureInfo"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="e">The event args.</param>
|
|||
private static void OnCultureInfoChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
if (e.Sender is NumericUpDown upDown) |
|||
{ |
|||
var oldValue = (CultureInfo)e.OldValue; |
|||
var newValue = (CultureInfo)e.NewValue; |
|||
upDown.OnCultureInfoChanged(oldValue, newValue); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Increment"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="e">The event args.</param>
|
|||
private static void IncrementChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
if (e.Sender is NumericUpDown upDown) |
|||
{ |
|||
var oldValue = (double)e.OldValue; |
|||
var newValue = (double)e.NewValue; |
|||
upDown.OnIncrementChanged(oldValue, newValue); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="FormatString"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="e">The event args.</param>
|
|||
private static void FormatStringChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
if (e.Sender is NumericUpDown upDown) |
|||
{ |
|||
var oldValue = (string)e.OldValue; |
|||
var newValue = (string)e.NewValue; |
|||
upDown.OnFormatStringChanged(oldValue, newValue); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="IsReadOnly"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="e">The event args.</param>
|
|||
private static void OnIsReadOnlyChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
if (e.Sender is NumericUpDown upDown) |
|||
{ |
|||
var oldValue = (bool)e.OldValue; |
|||
var newValue = (bool)e.NewValue; |
|||
upDown.OnIsReadOnlyChanged(oldValue, newValue); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Maximum"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="e">The event args.</param>
|
|||
private static void OnMaximumChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
if (e.Sender is NumericUpDown upDown) |
|||
{ |
|||
var oldValue = (double)e.OldValue; |
|||
var newValue = (double)e.NewValue; |
|||
upDown.OnMaximumChanged(oldValue, newValue); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Minimum"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="e">The event args.</param>
|
|||
private static void OnMinimumChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
if (e.Sender is NumericUpDown upDown) |
|||
{ |
|||
var oldValue = (double)e.OldValue; |
|||
var newValue = (double)e.NewValue; |
|||
upDown.OnMinimumChanged(oldValue, newValue); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Text"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="e">The event args.</param>
|
|||
private static void OnTextChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
if (e.Sender is NumericUpDown upDown) |
|||
{ |
|||
var oldValue = (string)e.OldValue; |
|||
var newValue = (string)e.NewValue; |
|||
upDown.OnTextChanged(oldValue, newValue); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Called when the <see cref="Value"/> property value changed.
|
|||
/// </summary>
|
|||
/// <param name="e">The event args.</param>
|
|||
private static void OnValueChanged(AvaloniaPropertyChangedEventArgs e) |
|||
{ |
|||
if (e.Sender is NumericUpDown upDown) |
|||
{ |
|||
var oldValue = (double)e.OldValue; |
|||
var newValue = (double)e.NewValue; |
|||
upDown.OnValueChanged(oldValue, newValue); |
|||
} |
|||
} |
|||
|
|||
private void SetValueInternal(double value) |
|||
{ |
|||
_internalValueSet = true; |
|||
try |
|||
{ |
|||
Value = value; |
|||
} |
|||
finally |
|||
{ |
|||
_internalValueSet = false; |
|||
} |
|||
} |
|||
|
|||
private static double OnCoerceMaximum(NumericUpDown upDown, double value) |
|||
{ |
|||
return upDown.OnCoerceMaximum(value); |
|||
} |
|||
|
|||
private static double OnCoerceMinimum(NumericUpDown upDown, double value) |
|||
{ |
|||
return upDown.OnCoerceMinimum(value); |
|||
} |
|||
|
|||
private static double OnCoerceIncrement(NumericUpDown upDown, double value) |
|||
{ |
|||
return upDown.OnCoerceIncrement(value); |
|||
} |
|||
|
|||
private void TextBoxOnTextChanged() |
|||
{ |
|||
try |
|||
{ |
|||
_isTextChangedFromUI = true; |
|||
if (TextBox != null) |
|||
{ |
|||
Text = TextBox.Text; |
|||
} |
|||
} |
|||
finally |
|||
{ |
|||
_isTextChangedFromUI = false; |
|||
} |
|||
} |
|||
|
|||
private void OnSpinnerSpin(object sender, SpinEventArgs e) |
|||
{ |
|||
if (AllowSpin && !IsReadOnly) |
|||
{ |
|||
var spin = !e.UsingMouseWheel; |
|||
spin |= ((TextBox != null) && TextBox.IsFocused); |
|||
|
|||
if (spin) |
|||
{ |
|||
e.Handled = true; |
|||
OnSpin(e); |
|||
} |
|||
} |
|||
} |
|||
|
|||
private void DoDecrement() |
|||
{ |
|||
if (Spinner == null || (Spinner.ValidSpinDirection & ValidSpinDirections.Decrease) == ValidSpinDirections.Decrease) |
|||
{ |
|||
OnDecrement(); |
|||
} |
|||
} |
|||
|
|||
private void DoIncrement() |
|||
{ |
|||
if (Spinner == null || (Spinner.ValidSpinDirection & ValidSpinDirections.Increase) == ValidSpinDirections.Increase) |
|||
{ |
|||
OnIncrement(); |
|||
} |
|||
} |
|||
|
|||
public event EventHandler<SpinEventArgs> Spinned; |
|||
|
|||
private void TextBoxOnPointerPressed(object sender, PointerPressedEventArgs e) |
|||
{ |
|||
if (e.Device.Captured != Spinner) |
|||
{ |
|||
Dispatcher.UIThread.InvokeAsync(() => { e.Device.Capture(Spinner); }, DispatcherPriority.Input); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Defines the <see cref="ValueChanged"/> event.
|
|||
/// </summary>
|
|||
public static readonly RoutedEvent<NumericUpDownValueChangedEventArgs> ValueChangedEvent = |
|||
RoutedEvent.Register<NumericUpDown, NumericUpDownValueChangedEventArgs>(nameof(ValueChanged), RoutingStrategies.Bubble); |
|||
|
|||
/// <summary>
|
|||
/// Raised when the <see cref="Value"/> changes.
|
|||
/// </summary>
|
|||
public event EventHandler<SpinEventArgs> ValueChanged |
|||
{ |
|||
add { AddHandler(ValueChangedEvent, value); } |
|||
remove { RemoveHandler(ValueChangedEvent, value); } |
|||
} |
|||
|
|||
private bool CommitInput() |
|||
{ |
|||
return SyncTextAndValueProperties(true, Text); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Synchronize <see cref="Text"/> and <see cref="Value"/> properties.
|
|||
/// </summary>
|
|||
/// <param name="updateValueFromText">If value should be updated from text.</param>
|
|||
/// <param name="text">The text.</param>
|
|||
private bool SyncTextAndValueProperties(bool updateValueFromText, string text) |
|||
{ |
|||
return SyncTextAndValueProperties(updateValueFromText, text, false); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Synchronize <see cref="Text"/> and <see cref="Value"/> properties.
|
|||
/// </summary>
|
|||
/// <param name="updateValueFromText">If value should be updated from text.</param>
|
|||
/// <param name="text">The text.</param>
|
|||
/// <param name="forceTextUpdate">Force text update.</param>
|
|||
private bool SyncTextAndValueProperties(bool updateValueFromText, string text, bool forceTextUpdate) |
|||
{ |
|||
if (_isSyncingTextAndValueProperties) |
|||
return true; |
|||
|
|||
_isSyncingTextAndValueProperties = true; |
|||
var parsedTextIsValid = true; |
|||
try |
|||
{ |
|||
if (updateValueFromText) |
|||
{ |
|||
if (!string.IsNullOrEmpty(text)) |
|||
{ |
|||
try |
|||
{ |
|||
var newValue = ConvertTextToValue(text); |
|||
if (!Equals(newValue, Value)) |
|||
{ |
|||
SetValueInternal(newValue); |
|||
} |
|||
} |
|||
catch |
|||
{ |
|||
parsedTextIsValid = false; |
|||
} |
|||
} |
|||
} |
|||
|
|||
// Do not touch the ongoing text input from user.
|
|||
if (!_isTextChangedFromUI) |
|||
{ |
|||
var keepEmpty = !forceTextUpdate && string.IsNullOrEmpty(Text); |
|||
if (!keepEmpty) |
|||
{ |
|||
var newText = ConvertValueToText(); |
|||
if (!Equals(Text, newText)) |
|||
{ |
|||
Text = newText; |
|||
} |
|||
} |
|||
|
|||
// Sync Text and textBox
|
|||
if (TextBox != null) |
|||
{ |
|||
TextBox.Text = Text; |
|||
} |
|||
} |
|||
|
|||
if (_isTextChangedFromUI && !parsedTextIsValid) |
|||
{ |
|||
// Text input was made from the user and the text
|
|||
// repesents an invalid value. Disable the spinner in this case.
|
|||
if (Spinner != null) |
|||
{ |
|||
Spinner.ValidSpinDirection = ValidSpinDirections.None; |
|||
} |
|||
} |
|||
else |
|||
{ |
|||
SetValidSpinDirection(); |
|||
} |
|||
} |
|||
finally |
|||
{ |
|||
_isSyncingTextAndValueProperties = false; |
|||
} |
|||
return parsedTextIsValid; |
|||
} |
|||
|
|||
private double ConvertTextToValueCore(string currentValueText, string text) |
|||
{ |
|||
double result; |
|||
|
|||
if (IsPercent(FormatString)) |
|||
{ |
|||
result = decimal.ToDouble(ParsePercent(text, CultureInfo)); |
|||
} |
|||
else |
|||
{ |
|||
// Problem while converting new text
|
|||
if (!double.TryParse(text, ParsingNumberStyle, CultureInfo, out var outputValue)) |
|||
{ |
|||
var shouldThrow = true; |
|||
|
|||
// Check if CurrentValueText is also failing => it also contains special characters. ex : 90°
|
|||
if (!double.TryParse(currentValueText, ParsingNumberStyle, CultureInfo, out var _)) |
|||
{ |
|||
// extract non-digit characters
|
|||
var currentValueTextSpecialCharacters = currentValueText.Where(c => !char.IsDigit(c)); |
|||
var textSpecialCharacters = text.Where(c => !char.IsDigit(c)); |
|||
// same non-digit characters on currentValueText and new text => remove them on new Text to parse it again.
|
|||
if (currentValueTextSpecialCharacters.Except(textSpecialCharacters).ToList().Count == 0) |
|||
{ |
|||
foreach (var character in textSpecialCharacters) |
|||
{ |
|||
text = text.Replace(character.ToString(), string.Empty); |
|||
} |
|||
// if without the special characters, parsing is good, do not throw
|
|||
if (double.TryParse(text, ParsingNumberStyle, CultureInfo, out outputValue)) |
|||
{ |
|||
shouldThrow = false; |
|||
} |
|||
} |
|||
} |
|||
|
|||
if (shouldThrow) |
|||
{ |
|||
throw new InvalidDataException("Input string was not in a correct format."); |
|||
} |
|||
} |
|||
result = outputValue; |
|||
} |
|||
return result; |
|||
} |
|||
|
|||
private void ValidateMinMax(double value) |
|||
{ |
|||
if (value < Minimum) |
|||
{ |
|||
throw new ArgumentOutOfRangeException(nameof(Minimum), string.Format("Value must be greater than Minimum value of {0}", Minimum)); |
|||
} |
|||
else if (value > Maximum) |
|||
{ |
|||
throw new ArgumentOutOfRangeException(nameof(Maximum), string.Format("Value must be less than Maximum value of {0}", Maximum)); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Parse percent format text
|
|||
/// </summary>
|
|||
/// <param name="text">Text to parse.</param>
|
|||
/// <param name="cultureInfo">The culture info.</param>
|
|||
private static decimal ParsePercent(string text, IFormatProvider cultureInfo) |
|||
{ |
|||
var info = NumberFormatInfo.GetInstance(cultureInfo); |
|||
text = text.Replace(info.PercentSymbol, null); |
|||
var result = decimal.Parse(text, NumberStyles.Any, info); |
|||
result = result / 100; |
|||
return result; |
|||
} |
|||
|
|||
|
|||
private bool IsPercent(string stringToTest) |
|||
{ |
|||
var PIndex = stringToTest.IndexOf("P", StringComparison.Ordinal); |
|||
if (PIndex >= 0) |
|||
{ |
|||
//stringToTest contains a "P" between 2 "'", it's considered as text, not percent
|
|||
var isText = stringToTest.Substring(0, PIndex).Contains("'") |
|||
&& stringToTest.Substring(PIndex, FormatString.Length - PIndex).Contains("'"); |
|||
|
|||
return !isText; |
|||
} |
|||
return false; |
|||
} |
|||
} |
|||
} |
|||
@ -0,0 +1,16 @@ |
|||
using Avalonia.Interactivity; |
|||
|
|||
namespace Avalonia.Controls |
|||
{ |
|||
public class NumericUpDownValueChangedEventArgs : RoutedEventArgs |
|||
{ |
|||
public NumericUpDownValueChangedEventArgs(RoutedEvent routedEvent, double oldValue, double newValue) : base(routedEvent) |
|||
{ |
|||
OldValue = oldValue; |
|||
NewValue = newValue; |
|||
} |
|||
|
|||
public double OldValue { get; } |
|||
public double NewValue { get; } |
|||
} |
|||
} |
|||
@ -0,0 +1,41 @@ |
|||
<Styles xmlns="https://github.com/avaloniaui"> |
|||
<Style Selector="NumericUpDown"> |
|||
<Setter Property="TemplatedControl.BorderBrush" Value="{DynamicResource ThemeBorderLightBrush}"/> |
|||
<Setter Property="TemplatedControl.BorderThickness" Value="{DynamicResource ThemeBorderThickness}"/> |
|||
<Setter Property="TemplatedControl.Background" Value="{DynamicResource ThemeBackgroundBrush}" /> |
|||
<Setter Property="TemplatedControl.Foreground" Value="{DynamicResource ThemeForegroundBrush}" /> |
|||
<Setter Property="TemplatedControl.Template"> |
|||
<ControlTemplate> |
|||
<ButtonSpinner Name="PART_Spinner" |
|||
Background="{TemplateBinding Background}" |
|||
BorderThickness="{TemplateBinding BorderThickness}" |
|||
BorderBrush="{TemplateBinding BorderBrush}" |
|||
HorizontalContentAlignment="Stretch" |
|||
VerticalContentAlignment="Stretch" |
|||
AllowSpin="{TemplateBinding AllowSpin}" |
|||
ShowButtonSpinner="{TemplateBinding ShowButtonSpinner}" |
|||
ButtonSpinnerLocation="{TemplateBinding ButtonSpinnerLocation}"> |
|||
<TextBox Name="PART_TextBox" |
|||
BorderThickness="0" |
|||
Background="Transparent" |
|||
ContextMenu="{TemplateBinding ContextMenu}" |
|||
FontFamily="{TemplateBinding FontFamily}" |
|||
FontSize="{TemplateBinding FontSize}" |
|||
FontStyle="{TemplateBinding FontStyle}" |
|||
FontWeight="{TemplateBinding FontWeight}" |
|||
Foreground="{TemplateBinding Foreground}" |
|||
Watermark="{TemplateBinding Watermark}" |
|||
IsReadOnly="{TemplateBinding IsReadOnly}" |
|||
Text="{TemplateBinding Text}" |
|||
Padding="{TemplateBinding Padding}" |
|||
TextAlignment="Left" |
|||
Margin="1" |
|||
MinWidth="20" |
|||
AcceptsReturn="False" |
|||
TextWrapping="NoWrap"> |
|||
</TextBox> |
|||
</ButtonSpinner> |
|||
</ControlTemplate> |
|||
</Setter> |
|||
</Style> |
|||
</Styles> |
|||
Loading…
Reference in new issue