Settings dialog, Highlighting button issue #80

Settings dialog, update Highlighting button for issue #80

Author: BdR76

CSVLintNppPlugin/CsvLintNppPlugin.csproj

@@ -121,6 +121,9 @@
     </Compile>
     <Compile Include="PluginInfrastructure\DarkMode.cs" />
     <Compile Include="PluginInfrastructure\Lexer.cs" />
+    <Compile Include="Tools\MenuButton.cs">
+      <SubType>Component</SubType>
+    </Compile>
     <Compile Include="Tools\Settings.cs" />
     <Compile Include="Tools\Helper.cs" />
     <Compile Include="Forms\AboutForm.cs">

CSVLintNppPlugin/PluginInfrastructure/SettingsBase.cs

@@ -7,6 +7,7 @@
 using System.Text;
 using System.Windows.Forms;
 using CSVLint.Tools;
+using CSVLintNppPlugin.Tools;
 using Kbg.NppPluginNET;
 using Kbg.NppPluginNET.PluginInfrastructure;
 
@@ -150,11 +151,11 @@ private Dictionary<string, string> GetKeys(string iniFile, string category)
 
         private void colorButton_Click(object sender, EventArgs e)
         {
-            Button btn = (Button)sender;
-            //ContextMenu cm = btn.ContextMenu;
-            ContextMenuStrip cm = btn.ContextMenuStrip;
-
-            cm.Show(btn, new Point(0, btn.Height)); // offset from the edge of your button
+            // Button btn = (Button)sender;
+            // //ContextMenu cm = btn.ContextMenu;
+            // ContextMenuStrip cm = btn.ContextMenuStrip;
+            // 
+            // cm.Show(btn, new Point(0, btn.Height)); // offset from the edge of your button
         }
 
         private void colorMenuItem_Click(object sender, EventArgs e)
@@ -250,16 +251,18 @@ public void ShowDialog()
                         AutoScaleDimensions = new SizeF(6F,13F),
                         SelectedObject = copy
                     },
-                    new Button
+                    new MenuButton
                     {
                         Name = "Colors",
-                        Text = "Colors",
+                        Text = "Highlighting",
                         Anchor = AnchorStyles.Bottom | AnchorStyles.Left,
-                        Size = new Size(75, 23),
+                        Size = new Size(100, 23),
                         Location = new Point(13, DEFAULT_HEIGHT - 23 - 13),
                         UseVisualStyleBackColor = true,
                         //ContextMenu = cm
-                        ContextMenuStrip = cm
+                        Menu = cm
+                        //,Image = CSVLintNppPlugin.Properties.Resources.setcolor1,
+                        //ImageAlign = ContentAlignment.MiddleLeft
                     }
                 }
             };

CSVLintNppPlugin/Tools/MenuButton.cs

@@ -0,0 +1,58 @@
+using System.ComponentModel;
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace CSVLintNppPlugin.Tools
+{
+    /// <summary>
+    /// MenuButton used on Settings dialog
+    /// Based on example code by Sverrir Sigmundarson, found here https://stackoverflow.com/a/27173509/1745616
+    /// </summary>
+    public class MenuButton : Button
+    {
+        [DefaultValue(null)]
+        public ContextMenuStrip Menu { get; set; }
+
+        [DefaultValue(false)]
+        public bool ShowMenuUnderCursor { get; set; }
+
+        protected override void OnMouseDown(MouseEventArgs mevent)
+        {
+            base.OnMouseDown(mevent);
+
+            if (Menu != null && mevent.Button == MouseButtons.Left)
+            {
+                Point menuLocation;
+
+                if (ShowMenuUnderCursor)
+                {
+                    menuLocation = mevent.Location;
+                }
+                else
+                {
+                    menuLocation = new Point(0, Height - 1);
+                }
+
+                Menu.Show(this, menuLocation);
+            }
+        }
+
+        protected override void OnPaint(PaintEventArgs pevent)
+        {
+            base.OnPaint(pevent);
+
+            if (Menu != null)
+            {
+                int arrowX = ClientRectangle.Width - Padding.Right - 14;
+                int arrowY = (ClientRectangle.Height / 2) - 1;
+
+                Color color = Enabled ? ForeColor : SystemColors.ControlDark;
+                using (Brush brush = new SolidBrush(color))
+                {
+                    Point[] arrows = new Point[] { new Point(arrowX, arrowY), new Point(arrowX + 7, arrowY), new Point(arrowX + 3, arrowY + 4) };
+                    pevent.Graphics.FillPolygon(brush, arrows);
+                }
+            }
+        }
+    }
+}