67 lines
1.6 KiB
C#
67 lines
1.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Windows.Media;
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namespace Microsoft.Research.DynamicDataDisplay.Common.Palettes
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{
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/// <summary>
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/// Represents a base class for decorating palette, which wraps another palette and intercepts calls to it.
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/// </summary>
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public abstract class DecoratorPaletteBase : PaletteBase
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="DecoratorPaletteBase"/> class.
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/// </summary>
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protected DecoratorPaletteBase() { }
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/// <summary>
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/// Initializes a new instance of the <see cref="DecoratorPaletteBase"/> class.
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/// </summary>
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/// <param name="palette">The palette.</param>
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public DecoratorPaletteBase(IPalette palette)
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{
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Palette = palette;
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}
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private IPalette palette = null;
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/// <summary>
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/// Gets or sets the palette being decorated.
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/// </summary>
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/// <value>The palette.</value>
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public IPalette Palette
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{
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get { return palette; }
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set
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{
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if (value == null)
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throw new ArgumentNullException("value");
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if (palette != null)
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palette.Changed -= OnChildPaletteChanged;
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palette = value;
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palette.Changed += OnChildPaletteChanged;
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RaiseChanged();
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}
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}
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void OnChildPaletteChanged(object sender, EventArgs e)
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{
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RaiseChanged();
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}
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/// <summary>
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/// Gets the color by interpolation coefficient.
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/// </summary>
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/// <param name="t">Interpolation coefficient, should belong to [0..1].</param>
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/// <returns>Color.</returns>
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public override Color GetColor(double t)
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{
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return palette.GetColor(t);
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}
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}
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}
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