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WPFDark/Controls/BiaHsvBoxBackground.cs
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408
WPFDark/Controls/BiaHsvBoxBackground.cs
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using System.Runtime.CompilerServices;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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using System.Windows.Media;
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using WPFDark.Controls.Effects;
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using WPFDark.Internals;
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namespace WPFDark.Controls
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{
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internal class BiaHsvBoxBackground : Canvas
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{
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#region Hue
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public double Hue
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{
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get => hue;
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set
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{
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if (NumberHelper.AreClose(value, hue) == false)
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SetValue(HueProperty, value);
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}
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}
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private double hue;
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public static readonly DependencyProperty HueProperty =
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DependencyProperty.Register(nameof(Hue), typeof(double), typeof(BiaHsvBoxBackground),
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new FrameworkPropertyMetadata(
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0.0,
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(s, e) =>
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{
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var self = (BiaHsvBoxBackground) s;
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self.hue = (double) e.NewValue;
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}));
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#endregion
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#region Saturation
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public double Saturation
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{
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get => saturation;
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set
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{
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if (NumberHelper.AreClose(value, saturation) == false)
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SetValue(SaturationProperty, value);
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}
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}
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private double saturation;
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public static readonly DependencyProperty SaturationProperty =
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DependencyProperty.Register(nameof(Saturation), typeof(double), typeof(BiaHsvBoxBackground),
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new FrameworkPropertyMetadata(
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0.0,
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(s, e) =>
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{
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var self = (BiaHsvBoxBackground) s;
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self.saturation = (double) e.NewValue;
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}));
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#endregion
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#region Value
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public double Value
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{
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get => value;
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set
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{
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if (NumberHelper.AreClose(value, this.value) == false)
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SetValue(ValueProperty, value);
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}
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}
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private double value;
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public static readonly DependencyProperty ValueProperty =
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DependencyProperty.Register(nameof(Value), typeof(double), typeof(BiaHsvBoxBackground),
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new FrameworkPropertyMetadata(
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0.0,
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FrameworkPropertyMetadataOptions.AffectsRender |
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FrameworkPropertyMetadataOptions.SubPropertiesDoNotAffectRender,
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(s, e) =>
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{
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var self = (BiaHsvBoxBackground) s;
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self.value = (double) e.NewValue;
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self.effect.Value = NumberHelper.Clamp01(self.value);
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}));
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#endregion
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#region IsReadOnly
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public bool IsReadOnly
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{
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get => isReadOnly;
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set
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{
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if (value != isReadOnly)
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SetValue(IsReadOnlyProperty, value);
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}
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}
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private bool isReadOnly;
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public static readonly DependencyProperty IsReadOnlyProperty =
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DependencyProperty.Register(nameof(IsReadOnly), typeof(bool), typeof(BiaHsvBoxBackground),
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new FrameworkPropertyMetadata(
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false,
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FrameworkPropertyMetadataOptions.AffectsRender |
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FrameworkPropertyMetadataOptions.SubPropertiesDoNotAffectRender,
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(s, e) =>
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{
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var self = (BiaHsvBoxBackground) s;
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self.isReadOnly = (bool) e.NewValue;
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}));
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#endregion
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#region StartedContinuousEditingCommand
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public ICommand? StartedContinuousEditingCommand
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{
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get => startedContinuousEditingCommand;
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set
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{
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if (value != startedContinuousEditingCommand)
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SetValue(StartedContinuousEditingCommandProperty, value);
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}
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}
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private ICommand? startedContinuousEditingCommand;
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public static readonly DependencyProperty StartedContinuousEditingCommandProperty =
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DependencyProperty.Register(
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nameof(StartedContinuousEditingCommand),
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typeof(ICommand),
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typeof(BiaHsvBoxBackground),
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new PropertyMetadata(
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default(ICommand),
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(s, e) =>
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{
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var self = (BiaHsvBoxBackground) s;
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self.startedContinuousEditingCommand = (ICommand) e.NewValue;
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}));
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#endregion
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#region EndContinuousEditingCommand
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public ICommand? EndContinuousEditingCommand
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{
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get => endContinuousEditingCommand;
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set
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{
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if (value != endContinuousEditingCommand)
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SetValue(EndContinuousEditingCommandProperty, value);
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}
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}
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private ICommand? endContinuousEditingCommand;
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public static readonly DependencyProperty EndContinuousEditingCommandProperty =
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DependencyProperty.Register(
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nameof(EndContinuousEditingCommand),
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typeof(ICommand),
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typeof(BiaHsvBoxBackground),
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new PropertyMetadata(
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default(ICommand),
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(s, e) =>
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{
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var self = (BiaHsvBoxBackground) s;
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self.endContinuousEditingCommand = (ICommand) e.NewValue;
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}));
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#endregion
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#region StartedBatchEditingCommand
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public ICommand? StartedBatchEditingCommand
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{
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get => startedBatchEditingCommand;
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set
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{
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if (value != startedBatchEditingCommand)
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SetValue(StartedBatchEditingCommandProperty, value);
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}
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}
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private ICommand? startedBatchEditingCommand;
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public static readonly DependencyProperty StartedBatchEditingCommandProperty =
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DependencyProperty.Register(
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nameof(StartedBatchEditingCommand),
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typeof(ICommand),
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typeof(BiaHsvBoxBackground),
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new PropertyMetadata(
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default(ICommand),
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(s, e) =>
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{
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var self = (BiaHsvBoxBackground) s;
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self.startedBatchEditingCommand = (ICommand) e.NewValue;
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}));
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#endregion
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#region EndBatchEditingCommand
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public ICommand? EndBatchEditingCommand
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{
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get => endBatchEditingCommand;
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set
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{
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if (value != endBatchEditingCommand)
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SetValue(EndBatchEditingCommandProperty, value);
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}
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}
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private ICommand? endBatchEditingCommand;
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public static readonly DependencyProperty EndBatchEditingCommandProperty =
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DependencyProperty.Register(
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nameof(EndBatchEditingCommand),
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typeof(ICommand),
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typeof(BiaHsvBoxBackground),
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new PropertyMetadata(
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default(ICommand),
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(s, e) =>
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{
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var self = (BiaHsvBoxBackground) s;
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self.endBatchEditingCommand = (ICommand) e.NewValue;
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}));
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#endregion
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private readonly HsvBoxBackgroundEffect effect = new ();
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// ReSharper disable once PrivateFieldCanBeConvertedToLocalVariable
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private readonly PropertyChangeNotifier isEnabledChangeNotifier;
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static BiaHsvBoxBackground()
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{
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DefaultStyleKeyProperty.OverrideMetadata(typeof(BiaHsvBoxBackground),
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new FrameworkPropertyMetadata(typeof(BiaHsvBoxBackground)));
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}
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public BiaHsvBoxBackground()
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{
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Effect = effect;
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RenderOptions.SetEdgeMode(this, EdgeMode.Aliased);
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effect.DisableColor = ((ByteColor)ThemeManager.Current.TryFindResource("InactiveColorPickerColorKey")).ToPoint3D();
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isEnabledChangeNotifier = new PropertyChangeNotifier(this, IsEnabledProperty);
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isEnabledChangeNotifier.ValueChanged += (_, _) =>
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{
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effect.IsEnabled = IsEnabled ? 1.0f : 0.0f;
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InvalidateVisual();
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};
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}
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protected override void OnRender(DrawingContext dc)
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{
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base.OnRender(dc);
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if (ActualWidth <= 1 ||
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ActualHeight <= 1)
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return;
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var rounder = new LayoutRounder(this);
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var rect = rounder.RoundRenderRectangle(true);
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dc.DrawRectangle(Brushes.Transparent, null, rect);
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}
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private void UpdateParams(in LayoutRounder rounder, MouseEventArgs e)
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{
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var pos = e.GetPosition(this);
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var s = rounder.RoundLayoutValue(1);
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var x = (pos.X - s) / (ActualWidth - s * 2);
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var y = (pos.Y - s) / (ActualHeight - s * 2);
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x = NumberHelper.Clamp01(x);
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y = NumberHelper.Clamp01(y);
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Hue = x;
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Saturation = 1 - y;
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}
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private bool isMouseDown;
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private bool isContinuousEdited;
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private (double, double) continuousEditingStartValue;
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protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
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{
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base.OnMouseLeftButtonDown(e);
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if (IsReadOnly)
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return;
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isMouseDown = true;
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GuiHelper.HideCursor();
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var rounder = new LayoutRounder(this);
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continuousEditingStartValue = (Hue, Saturation);
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isContinuousEdited = true;
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StartedContinuousEditingCommand?.ExecuteIfCan(null);
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UpdateParams(rounder, e);
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CaptureMouse();
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this.SetMouseClipping();
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e.Handled = true;
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}
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protected override void OnMouseMove(MouseEventArgs e)
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{
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base.OnMouseMove(e);
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if (IsReadOnly)
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return;
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if (isMouseDown == false)
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return;
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var rounder = new LayoutRounder(this);
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UpdateParams(rounder, e);
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e.Handled = true;
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}
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protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e)
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{
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base.OnMouseLeftButtonUp(e);
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if (IsReadOnly)
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return;
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if (isMouseDown == false)
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return;
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// マウス位置を補正する
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{
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var rounder = new LayoutRounder(this);
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var pos = BiaHsvBoxCursor.MakeCursorRenderPos(rounder, ActualWidth, ActualHeight, Hue, Saturation);
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var mousePos = PointToScreen(Unsafe.As<ImmutableVec2_double, Point>(ref pos));
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Win32Helper.SetCursorPos((int) mousePos.X, (int) mousePos.Y);
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}
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isMouseDown = false;
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GuiHelper.ShowCursor();
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this.ResetMouseClipping();
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ReleaseMouseCapture();
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if (isContinuousEdited)
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{
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if (EndContinuousEditingCommand != null)
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{
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if (EndContinuousEditingCommand.CanExecute(null))
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{
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var changedValue = (Hue, Saturation);
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(Hue, Saturation) = continuousEditingStartValue;
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EndContinuousEditingCommand.Execute(null);
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StartedBatchEditingCommand?.ExecuteIfCan(null);
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(Hue, Saturation) = changedValue;
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EndBatchEditingCommand?.ExecuteIfCan(null);
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}
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}
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isContinuousEdited = false;
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}
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e.Handled = true;
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}
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protected override void OnMouseLeave(MouseEventArgs e)
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{
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base.OnMouseLeave(e);
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if (isMouseDown)
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{
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isMouseDown = false;
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ReleaseMouseCapture();
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GuiHelper.ShowCursor();
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this.ResetMouseClipping();
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}
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e.Handled = true;
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}
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}
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}
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