项目结构调整

Extensions/AIStudio.Wpf.Mind/Controls/ColorSpectrumSlider.cs

@@ -0,0 +1,97 @@
+using System;
+using System.Collections.Generic;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+using System.Windows.Shapes;
+
+namespace  AIStudio.Wpf.Mind.Controls
+{
+    [TemplatePart(Name = PART_SpectrumDisplay, Type = typeof(Rectangle))]
+    public class ColorSpectrumSlider : Slider
+    {
+        private const string PART_SpectrumDisplay = "PART_SpectrumDisplay";
+
+        #region Private Members
+
+        private Rectangle _spectrumDisplay;
+        private LinearGradientBrush _pickerBrush;
+
+        #endregion //Private Members
+
+        #region Constructors
+
+        static ColorSpectrumSlider()
+        {
+            DefaultStyleKeyProperty.OverrideMetadata(typeof(ColorSpectrumSlider), new FrameworkPropertyMetadata(typeof(ColorSpectrumSlider)));
+        }
+
+        #endregion //Constructors
+
+        #region Dependency Properties
+
+        public static readonly DependencyProperty SelectedColorProperty = DependencyProperty.Register("SelectedColor", typeof(Color), typeof(ColorSpectrumSlider), new PropertyMetadata(System.Windows.Media.Colors.Transparent));
+        public Color SelectedColor
+        {
+            get
+            {
+                return (Color)GetValue(SelectedColorProperty);
+            }
+            set
+            {
+                SetValue(SelectedColorProperty, value);
+            }
+        }
+
+        #endregion //Dependency Properties
+
+        #region Base Class Overrides
+
+        public override void OnApplyTemplate()
+        {
+            base.OnApplyTemplate();
+
+            _spectrumDisplay = (Rectangle)GetTemplateChild(PART_SpectrumDisplay);
+            CreateSpectrum();
+            OnValueChanged(Double.NaN, Value);
+        }
+
+        protected override void OnValueChanged(double oldValue, double newValue)
+        {
+            base.OnValueChanged(oldValue, newValue);
+
+            Color color = ColorUtilities.ConvertHsvToRgb(360 - newValue, 1, 1);
+            SelectedColor = color;
+        }
+
+        #endregion //Base Class Overrides
+
+        #region Methods
+
+        private void CreateSpectrum()
+        {
+            _pickerBrush = new LinearGradientBrush();
+            _pickerBrush.StartPoint = new Point(0.5, 0);
+            _pickerBrush.EndPoint = new Point(0.5, 1);
+            _pickerBrush.ColorInterpolationMode = ColorInterpolationMode.SRgbLinearInterpolation;
+
+            List<Color> colorsList = ColorUtilities.GenerateHsvSpectrum();
+
+            double stopIncrement = (double)1 / colorsList.Count;
+
+            int i;
+            for (i = 0; i < colorsList.Count; i++)
+            {
+                _pickerBrush.GradientStops.Add(new GradientStop(colorsList[i], i * stopIncrement));
+            }
+
+            _pickerBrush.GradientStops[i - 1].Offset = 1.0;
+            if (_spectrumDisplay != null)
+            {
+                _spectrumDisplay.Fill = _pickerBrush;
+            }
+        }
+
+        #endregion //Methods
+    }
+}