* UIToolTip：修复默认显示

SunnyUI.Demo/Controls/FOther.Designer.cs

@@ -44,6 +44,7 @@ namespace Sunny.UI.Demo
             // 
             this.uiLabel3.AutoSize = true;
             this.uiLabel3.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiLabel3.IsScaled = false;
             this.uiLabel3.Location = new System.Drawing.Point(31, 136);
             this.uiLabel3.Name = "uiLabel3";
             this.uiLabel3.Size = new System.Drawing.Size(138, 21);
@@ -55,6 +56,7 @@ namespace Sunny.UI.Demo
             // 
             this.uiLabel2.AutoSize = true;
             this.uiLabel2.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiLabel2.IsScaled = false;
             this.uiLabel2.Location = new System.Drawing.Point(211, 95);
             this.uiLabel2.Name = "uiLabel2";
             this.uiLabel2.Size = new System.Drawing.Size(138, 21);
@@ -66,16 +68,19 @@ namespace Sunny.UI.Demo
             // 
             this.uiLabel1.AutoSize = true;
             this.uiLabel1.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiLabel1.IsScaled = false;
             this.uiLabel1.Location = new System.Drawing.Point(31, 95);
             this.uiLabel1.Name = "uiLabel1";
             this.uiLabel1.Size = new System.Drawing.Size(138, 21);
             this.uiLabel1.TabIndex = 77;
             this.uiLabel1.Text = "鼠标移过来看提示";
             this.uiLabel1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
+            this.uiToolTip1.SetToolTip(this.uiLabel1, "赠人玫瑰手有余香");
             // 
             // uiLine7
             // 
             this.uiLine7.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiLine7.IsScaled = false;
             this.uiLine7.Location = new System.Drawing.Point(30, 55);
             this.uiLine7.MinimumSize = new System.Drawing.Size(16, 16);
             this.uiLine7.Name = "uiLine7";
@@ -90,6 +95,7 @@ namespace Sunny.UI.Demo
             this.uiScrollingText2.FillColor = System.Drawing.Color.FromArgb(((int)(((byte)(235)))), ((int)(((byte)(243)))), ((int)(((byte)(255)))));
             this.uiScrollingText2.Font = new System.Drawing.Font("微软雅黑", 14.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
             this.uiScrollingText2.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(80)))), ((int)(((byte)(160)))), ((int)(((byte)(255)))));
+            this.uiScrollingText2.IsScaled = false;
             this.uiScrollingText2.Location = new System.Drawing.Point(381, 129);
             this.uiScrollingText2.MinimumSize = new System.Drawing.Size(1, 1);
             this.uiScrollingText2.Name = "uiScrollingText2";
@@ -103,6 +109,7 @@ namespace Sunny.UI.Demo
             this.uiScrollingText1.FillColor = System.Drawing.Color.FromArgb(((int)(((byte)(235)))), ((int)(((byte)(243)))), ((int)(((byte)(255)))));
             this.uiScrollingText1.Font = new System.Drawing.Font("微软雅黑", 12F);
             this.uiScrollingText1.ForeColor = System.Drawing.Color.Red;
+            this.uiScrollingText1.IsScaled = false;
             this.uiScrollingText1.Location = new System.Drawing.Point(381, 88);
             this.uiScrollingText1.MinimumSize = new System.Drawing.Size(1, 1);
             this.uiScrollingText1.Name = "uiScrollingText1";
@@ -116,6 +123,7 @@ namespace Sunny.UI.Demo
             // uiLine6
             // 
             this.uiLine6.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiLine6.IsScaled = false;
             this.uiLine6.Location = new System.Drawing.Point(381, 55);
             this.uiLine6.MinimumSize = new System.Drawing.Size(16, 16);
             this.uiLine6.Name = "uiLine6";
@@ -130,6 +138,7 @@ namespace Sunny.UI.Demo
             this.uiToolTip1.Font = new System.Drawing.Font("微软雅黑", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
             this.uiToolTip1.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(239)))), ((int)(((byte)(239)))), ((int)(((byte)(239)))));
             this.uiToolTip1.OwnerDraw = true;
+            this.uiToolTip1.RectColor = System.Drawing.Color.FromArgb(((int)(((byte)(80)))), ((int)(((byte)(160)))), ((int)(((byte)(255)))));
             // 
             // FOther
             // 

SunnyUI/Controls/UIToolTip.cs

@@ -19,6 +19,7 @@
  * 2020-07-21: V2.2.6 增加控件
  * 2020-07-25: V2.2.6 更新绘制
  * 2021-08-16: V3.0.6 增加ToolTip接口，解决类似UITextBox这类的组合控件无法显示ToolTip的问题
+ * 2021-12-09: V3.0.9 修复默认显示
 ******************************************************************************/
 
 using System;
@@ -48,8 +49,12 @@ namespace Sunny.UI
             InitOwnerDraw();
         }
 
-        [DefaultValue("ToolTip title"), Category("SunnyUI"), Description("标题")]
+        protected override void Dispose(bool disposing)
-        public new string ToolTipTitle { get; set; } = "ToolTip title";
+        {
+            base.Dispose(disposing);
+            TempTitleFont?.Dispose();
+            TempFont?.Dispose();
+        }
 
         [DefaultValue(typeof(Font), "微软雅黑, 9pt"), Description("字体"), Category("SunnyUI")]
         public Font Font { get; set; } = new Font("微软雅黑", 9);
@@ -66,7 +71,7 @@ namespace Sunny.UI
         [DefaultValue(typeof(Size), "100, 70"), Description("不自动缩放时大小"), Category("SunnyUI")]
         public Size Size { get; set; } = new Size(100, 70);
 
-        public void SetToolTip(Control control, string description, string title, int symbol, int symbolSize,
+        public void SetToolTip(Control control, string caption, string title, int symbol, int symbolSize,
             Color symbolColor)
         {
             if (title == null) title = string.Empty;
@@ -74,7 +79,7 @@ namespace Sunny.UI
             if (ToolTipControls.ContainsKey(control))
             {
                 ToolTipControls[control].Title = title;
-                ToolTipControls[control].Description = description;
+                ToolTipControls[control].ToolTipText = caption;
                 ToolTipControls[control].Symbol = symbol;
                 ToolTipControls[control].SymbolSize = symbolSize;
                 ToolTipControls[control].SymbolColor = symbolColor;
@@ -85,7 +90,7 @@ namespace Sunny.UI
                 {
                     Control = control,
                     Title = title,
-                    Description = description,
+                    ToolTipText = caption,
                     Symbol = symbol,
                     SymbolSize = symbolSize,
                     SymbolColor = symbolColor
@@ -96,20 +101,20 @@ namespace Sunny.UI
 
             if (control is IToolTip toolTip)
             {
-                SetToolTip(toolTip.ExToolTipControl(), description, title, symbol, symbolSize, symbolColor);
+                SetToolTip(toolTip.ExToolTipControl(), caption, title, symbol, symbolSize, symbolColor);
             }
 
-            base.SetToolTip(control, description);
+            base.SetToolTip(control, caption);
         }
 
-        public void SetToolTip(Control control, string description, string title)
+        public void SetToolTip(Control control, string caption, string title)
         {
             if (title == null) title = string.Empty;
 
             if (ToolTipControls.ContainsKey(control))
             {
                 ToolTipControls[control].Title = title;
-                ToolTipControls[control].Description = description;
+                ToolTipControls[control].ToolTipText = caption;
             }
             else
             {
@@ -117,7 +122,7 @@ namespace Sunny.UI
                 {
                     Control = control,
                     Title = title,
-                    Description = description
+                    ToolTipText = caption
                 };
 
                 ToolTipControls.TryAdd(control, ctrl);
@@ -125,37 +130,10 @@ namespace Sunny.UI
 
             if (control is IToolTip toolTip)
             {
-                SetToolTip(toolTip.ExToolTipControl(), description, title);
+                SetToolTip(toolTip.ExToolTipControl(), caption, title);
             }
 
-            base.SetToolTip(control, description);
+            base.SetToolTip(control, caption);
-        }
-
-        public new void SetToolTip(Control control, string description)
-        {
-            if (ToolTipControls.ContainsKey(control))
-            {
-                ToolTipControls[control].Title = string.Empty;
-                ToolTipControls[control].Description = description;
-            }
-            else
-            {
-                var ctrl = new ToolTipControl
-                {
-                    Control = control,
-                    Title = string.Empty,
-                    Description = description
-                };
-
-                ToolTipControls.TryAdd(control, ctrl);
-            }
-
-            if (control is IToolTip toolTip)
-            {
-                SetToolTip(toolTip.ExToolTipControl(), description);
-            }
-
-            base.SetToolTip(control, description);
         }
 
         public void RemoveToolTip(Control control)
@@ -171,11 +149,6 @@ namespace Sunny.UI
             }
         }
 
-        public new string GetToolTip(Control control)
-        {
-            return ToolTipControls.ContainsKey(control) ? ToolTipControls[control].Description : "";
-        }
-
         private void InitOwnerDraw()
         {
             OwnerDraw = true;
@@ -193,7 +166,7 @@ namespace Sunny.UI
             {
                 var tooltip = ToolTipControls[e.AssociatedControl];
 
-                if (tooltip.Description.IsValid())
+                if (tooltip.ToolTipText.IsValid())
                 {
                     if (!AutoSize)
                     {
@@ -204,16 +177,15 @@ namespace Sunny.UI
                         var bmp = new Bitmap(e.ToolTipSize.Width, e.ToolTipSize.Height);
                         var g = Graphics.FromImage(bmp);
                         int symbolWidth = tooltip.Symbol > 0 ? tooltip.SymbolSize : 0;
-                        Font tmpTitleFont = TitleFont.DPIScaleFont();
+
-                        Font tmpFont = Font.DPIScaleFont();
 
                         SizeF titleSize = new SizeF(0, 0);
                         if (tooltip.Title.IsValid())
                         {
-                            titleSize = g.MeasureString(tooltip.Title, tmpTitleFont);
+                            titleSize = g.MeasureString(tooltip.Title, TempTitleFont);
                         }
 
-                        SizeF textSize = g.MeasureString(tooltip.Description, tmpFont);
+                        SizeF textSize = g.MeasureString(tooltip.ToolTipText, TempTitleFont);
                         int allWidth = (int)Math.Max(textSize.Width, titleSize.Width) + 10;
                         if (symbolWidth > 0) allWidth = allWidth + symbolWidth + 5;
                         int allHeight = titleSize.Height > 0 ?
@@ -221,27 +193,57 @@ namespace Sunny.UI
                             (int)textSize.Height + 10;
                         e.ToolTipSize = new Size(allWidth, allHeight);
                         bmp.Dispose();
-
-                        tmpTitleFont.Dispose();
-                        tmpFont.Dispose();
                     }
                 }
             }
+            else
+            {
+                SizeF sf = GDI.MeasureString(GetToolTip(e.AssociatedControl), TempTitleFont);
+                e.ToolTipSize = new Size((int)sf.Width + 10, (int)sf.Height + 10);
+            }
+        }
+
+        Font tmpFont;
+
+        private Font TempFont
+        {
+            get
+            {
+                if (tmpFont == null || !tmpFont.Size.EqualsFloat(Font.DPIScaleFontSize()))
+                {
+                    tmpFont?.Dispose();
+                    tmpFont = Font.DPIScaleFont();
+                }
+
+                return tmpFont;
+            }
+        }
+
+        Font tmpTitleFont;
+
+        private Font TempTitleFont
+        {
+            get
+            {
+                if (tmpTitleFont == null || !tmpTitleFont.Size.EqualsFloat(TitleFont.DPIScaleFontSize()))
+                {
+                    tmpTitleFont?.Dispose();
+                    tmpTitleFont = TitleFont.DPIScaleFont();
+                }
+
+                return tmpTitleFont;
+            }
         }
 
         private void ToolTipExDraw(object sender, DrawToolTipEventArgs e)
         {
-            Font tmpTitleFont = TitleFont.DPIScaleFont();
+            var bounds = new Rectangle(e.Bounds.Left, e.Bounds.Top, e.Bounds.Width - 1, e.Bounds.Height - 1);
-            Font tmpFont = Font.DPIScaleFont();
+            e.Graphics.FillRectangle(BackColor, bounds);
+            e.Graphics.DrawRectangle(RectColor, bounds);
 
             if (ToolTipControls.ContainsKey(e.AssociatedControl))
             {
                 var tooltip = ToolTipControls[e.AssociatedControl];
-                var bounds = new Rectangle(e.Bounds.Left, e.Bounds.Top, e.Bounds.Width - 1, e.Bounds.Height - 1);
-
-                e.Graphics.FillRectangle(BackColor, bounds);
-                e.Graphics.DrawRectangle(RectColor, bounds);
-
                 if (tooltip.Symbol > 0)
                 {
                     e.Graphics.DrawFontImage(tooltip.Symbol, tooltip.SymbolSize, tooltip.SymbolColor, new Rectangle(5, 5, tooltip.SymbolSize, tooltip.SymbolSize));
@@ -253,10 +255,10 @@ namespace Sunny.UI
                 {
                     if (tooltip.Title.IsValid())
                     {
-                        titleSize = e.Graphics.MeasureString(tooltip.Title, tmpTitleFont);
+                        titleSize = e.Graphics.MeasureString(tooltip.Title, TempTitleFont);
                     }
 
-                    e.Graphics.DrawString(tooltip.Title, tmpTitleFont, ForeColor,
+                    e.Graphics.DrawString(tooltip.Title, TempTitleFont, ForeColor,
                         tooltip.Symbol > 0 ? tooltip.SymbolSize + 5 : 5, 5);
                 }
 
@@ -267,24 +269,21 @@ namespace Sunny.UI
                         e.Bounds.Width - 5, 5 + titleSize.Height + 3);
                 }
 
-                e.Graphics.DrawString(e.ToolTipText, tmpFont, ForeColor,
+                e.Graphics.DrawString(e.ToolTipText, TempTitleFont, ForeColor,
                     tooltip.Symbol > 0 ? tooltip.SymbolSize + 5 : 5,
                     titleSize.Height > 0 ? 10 + titleSize.Height : 5);
             }
             else
             {
-                e.Graphics.DrawString(e.ToolTipText, tmpFont, ForeColor, 0, 0);
+                e.Graphics.DrawString(e.ToolTipText, TempTitleFont, ForeColor, 5, 5);
             }
-
-            tmpTitleFont.Dispose();
-            tmpFont.Dispose();
         }
 
         public class ToolTipControl : ISymbol
         {
             public Control Control { get; set; }
             public string Title { get; set; }
-            public string Description { get; set; }
+            public string ToolTipText { get; set; }
 
             public int Symbol { get; set; }