DotNet 4.8.1 build of DotNetBar

PROMS/DotNetBar Source Code/Presentation/ShapeFill.cs

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+using System;
+using System.Drawing.Drawing2D;
+using System.Text;
+using System.Drawing;
+using DevComponents.DotNetBar.Rendering;
+
+namespace DevComponents.DotNetBar.Presentation
+{
+    internal class ShapeFill : Shape
+    {
+        #region Properties
+        /// <summary>
+        /// Gets or sets the starting fill color.
+        /// </summary>
+        public Color Color1 = Color.Empty;
+
+        /// <summary>
+        /// Gets or sets the end fill color.
+        /// </summary>
+        public Color Color2 = Color.Empty;
+
+        /// <summary>
+        /// Gets or sets the gradient angle.
+        /// </summary>
+        public int GradientAngle = 90;
+        
+        /// <summary>
+        /// Gets or sets the background color collection blend.
+        /// </summary>
+        public BackgroundColorBlendCollection BackgroundColorBlend = null;
+
+        /// <summary>
+        /// Gets or sets the fill gradient type.
+        /// </summary>
+        public eGradientType GradientType = eGradientType.Linear;
+        #endregion
+
+        #region Internal Implementation
+        public ShapeFill() { }
+        public ShapeFill(Color color1, Color color2)
+        {
+            this.Color1 = color1;
+            this.Color2 = color2;
+        }
+        public ShapeFill(LinearGradientColorTable table)
+        {
+            this.Color1 = table.Start;
+            this.Color2 = table.End;
+        }
+        public ShapeFill(Color color1)
+        {
+            this.Color1 = color1;
+            this.Color2 = Color.Empty;
+        }
+        
+        public void Apply(LinearGradientColorTable table)
+        {
+            if (table == null)
+            {
+                this.Color1 = Color.Empty;
+                this.Color2 = Color.Empty;
+                this.GradientAngle = 90;
+            }
+            else
+            {
+                this.Color1 = table.Start;
+                this.Color2 = table.End;
+                this.GradientAngle = table.GradientAngle;
+            }
+        }
+        
+        public Brush CreateBrush(System.Drawing.Rectangle r)
+        {
+            if (r.Width <= 0 || r.Height <= 0)
+                return null;
+
+            if(this.BackgroundColorBlend!=null && BackgroundColorBlend.Count>0)
+            {
+                return DisplayHelp.CreateBrush(r, BackgroundColorBlend, GradientAngle, GradientType);
+            }
+            else if(Color2.IsEmpty && !Color1.IsEmpty)
+            {
+                return new SolidBrush(Color1);
+            }
+            else if (!Color2.IsEmpty && !Color1.IsEmpty)
+            {
+                if (GradientType == eGradientType.Linear)
+                    return new LinearGradientBrush(r, Color1, Color2, GradientAngle);
+                else
+                {
+                    int d = (int)Math.Sqrt(r.Width * r.Width + r.Height * r.Height) + 4;
+                    GraphicsPath fillPath = new GraphicsPath();
+                    fillPath.AddEllipse(r.X - (d - r.Width) / 2, r.Y - (d - r.Height) / 2, d, d);
+                    PathGradientBrush brush = new PathGradientBrush(fillPath);
+                    brush.CenterColor = this.Color1;
+                    brush.SurroundColors = new Color[] { this.Color2 };
+                    return brush;
+                }
+            }
+            return null;
+        }
+        #endregion
+
+    }
+}