* UINavMenu：增加设置二级菜单底色

SunnyUI.Demo/FMain.Designer.cs

@@ -29,10 +29,10 @@
         private void InitializeComponent()
         {
             this.components = new System.ComponentModel.Container();
-            System.Windows.Forms.TreeNode treeNode1 = new System.Windows.Forms.TreeNode("控件");
+            System.Windows.Forms.TreeNode treeNode5 = new System.Windows.Forms.TreeNode("控件");
-            System.Windows.Forms.TreeNode treeNode2 = new System.Windows.Forms.TreeNode("窗体");
+            System.Windows.Forms.TreeNode treeNode6 = new System.Windows.Forms.TreeNode("窗体");
-            System.Windows.Forms.TreeNode treeNode3 = new System.Windows.Forms.TreeNode("图表");
+            System.Windows.Forms.TreeNode treeNode7 = new System.Windows.Forms.TreeNode("图表");
-            System.Windows.Forms.TreeNode treeNode4 = new System.Windows.Forms.TreeNode("主题");
+            System.Windows.Forms.TreeNode treeNode8 = new System.Windows.Forms.TreeNode("主题");
             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(FMain));
             this.uiLogo1 = new Sunny.UI.UILogo();
             this.uiAvatar = new Sunny.UI.UIAvatar();
@@ -46,35 +46,39 @@
             // 
             // Aside
             // 
+            this.Aside.ExpandSelectFirst = false;
             this.Aside.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(240)))), ((int)(((byte)(240)))), ((int)(((byte)(240)))));
             this.Aside.ItemHeight = 36;
             this.Aside.LineColor = System.Drawing.Color.Black;
             this.Aside.Location = new System.Drawing.Point(2, 145);
             this.Aside.MenuStyle = Sunny.UI.UIMenuStyle.Black;
+            this.Aside.SecondBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(66)))), ((int)(((byte)(66)))), ((int)(((byte)(66)))));
             this.Aside.ShowOneNode = true;
+            this.Aside.ShowSecondBackColor = true;
             this.Aside.ShowTips = true;
             this.Aside.Size = new System.Drawing.Size(250, 573);
             this.Aside.Style = Sunny.UI.UIStyle.Custom;
+            this.Aside.StyleCustomMode = true;
             // 
             // Header
             // 
             this.Header.Controls.Add(this.uiAvatar);
             this.Header.Controls.Add(this.uiLogo1);
             this.Header.Location = new System.Drawing.Point(2, 35);
-            treeNode1.ImageIndex = 1;
+            treeNode5.ImageIndex = 1;
-            treeNode1.Name = "节点0";
+            treeNode5.Name = "节点0";
-            treeNode1.Text = "控件";
+            treeNode5.Text = "控件";
-            treeNode2.Name = "节点1";
+            treeNode6.Name = "节点1";
-            treeNode2.Text = "窗体";
+            treeNode6.Text = "窗体";
-            treeNode3.Name = "节点2";
+            treeNode7.Name = "节点2";
-            treeNode3.Text = "图表";
+            treeNode7.Text = "图表";
-            treeNode4.Name = "节点2";
+            treeNode8.Name = "节点2";
-            treeNode4.Text = "主题";
+            treeNode8.Text = "主题";
             this.Header.Nodes.AddRange(new System.Windows.Forms.TreeNode[] {
-            treeNode1,
+            treeNode5,
-            treeNode2,
+            treeNode6,
-            treeNode3,
+            treeNode7,
-            treeNode4});
+            treeNode8});
             this.Header.SelectedIndex = 0;
             this.Header.Size = new System.Drawing.Size(1020, 110);
             this.Header.Style = Sunny.UI.UIStyle.Custom;

SunnyUI/Controls/UINavMenu.cs

@@ -338,6 +338,7 @@ namespace Sunny.UI
             selectedColor = uiColor.SelectedColor;
             foreColor = uiColor.UnSelectedForeColor;
             hoverColor = uiColor.HoverColor;
+            secondBackColor = uiColor.SecondBackColor;
 
             if (Bar != null)
             {
@@ -445,6 +446,38 @@ namespace Sunny.UI
             node.ImageIndex = imageIndex;
         }
 
+        private bool showSecondBackColor;
+
+        [DefaultValue(false)]
+        [Description("显示二级节点背景颜色"), Category("SunnyUI")]
+        public bool ShowSecondBackColor
+        {
+            get => showSecondBackColor;
+            set
+            {
+                showSecondBackColor = value;
+                Invalidate();
+            }
+        }
+
+        private Color secondBackColor = UIColor.Blue;
+
+        [DefaultValue(typeof(Color), "66, 66, 66")]
+        [Description("二级节点背景颜色"), Category("SunnyUI")]
+        public Color SecondBackColor
+        {
+            get => secondBackColor;
+            set
+            {
+                if (secondBackColor != value)
+                {
+                    secondBackColor = value;
+                    _style = UIStyle.Custom;
+                    Invalidate();
+                }
+            }
+        }
+
         protected override void OnDrawNode(DrawTreeNodeEventArgs e)
         {
             if (BorderStyle != BorderStyle.None)
@@ -495,7 +528,13 @@ namespace Sunny.UI
                 }
                 else
                 {
-                    e.Graphics.FillRectangle(fillColor, new Rectangle(new Point(0, e.Node.Bounds.Y), new Size(Width, e.Node.Bounds.Height)));
+                    Color color = fillColor;
+                    if (showSecondBackColor && e.Node.Level > 0)
+                    {
+                        color = SecondBackColor;
+                    }
+
+                    e.Graphics.FillRectangle(color, new Rectangle(new Point(0, e.Node.Bounds.Y), new Size(Width, e.Node.Bounds.Height)));
                     e.Graphics.DrawString(e.Node.Text, Font, ForeColor, drawLeft, e.Bounds.Y + (ItemHeight - sf.Height) / 2.0f);
                 }
 

SunnyUI/Style/UIMenuStyle.cs

@@ -54,7 +54,7 @@ namespace Sunny.UI
         public virtual Color SelectedColor => Color.FromArgb(36, 36, 36);
         public virtual Color UnSelectedForeColor => Color.FromArgb(240, 240, 240);
         public virtual Color HoverColor => Color.FromArgb(76, 76, 76);
-
+        public virtual Color SecondBackColor => Color.FromArgb(66, 66, 66);
         public override string ToString()
         {
             return Style.DisplayText();
@@ -74,9 +74,10 @@ namespace Sunny.UI
     public class UIMenuWhiteColor : UIMenuColor
     {
         public override UIMenuStyle Style => UIMenuStyle.White;
-        public override Color BackColor => Color.FromArgb(250, 250, 250);
+        public override Color BackColor => Color.FromArgb(240, 240, 240);
-        public override Color SelectedColor => Color.FromArgb(240, 240, 240);
+        public override Color SelectedColor => Color.FromArgb(250, 250, 250);
         public override Color UnSelectedForeColor => UIFontColor.Primary;
         public override Color HoverColor => Color.FromArgb(230, 230, 230);
+        public override Color SecondBackColor => Color.FromArgb(235, 235, 235);
     }
 }