1376 v100 extending krypton task dialog (#2534)

* 1376-V100-Extending-KryptonTaskDialog
- Refactoring of property sub classes and made those event based leaving the logic in the parent class.
- Fixed Header element alignment and label positioning
- Added an optional image to the Content and Expander elements.
- Some housekeeping

* 1376-V100-Extending-KryptonTaskDialog
- Refactoring of property sub classes and made those event based leaving the logic in the parent class.
- Fixed Header element alignment and label positioning
- Added an optional image to the Content and Expander elements.
- Some housekeeping

* 1376-V100-Extending-KryptonTaskDialog
- All FlowLayoutPanels and TableLayoutPanels now have DoubleBuffering applied.
- Experimental and testing properties have been removed.
- Added images to the RichtTextBox element's ContextMenu.
- Added the FreeWheeler element.
- Some housekeeping & refactoring

* 1376-V100-Extending-KryptonTaskDialog
- All FlowLayoutPanels and TableLayoutPanels now have DoubleBuffering applied.
- Experimental and testing properties have been removed.
- Added images to the RichtTextBox element's ContextMenu.
- Added the FreeWheeler element.
- Some housekeeping & refactoring

Author: giduac

Source/Krypton Components/Krypton.Toolkit/Controls Toolkit/KryptonTaskDialog/Elements/KryptonTaskDialogElementCheckBox.cs

@@ -20,19 +20,29 @@ public class KryptonTaskDialogElementCheckBox : KryptonTaskDialogElementSingleLi
     public KryptonTaskDialogElementCheckBox(KryptonTaskDialogDefaults taskDialogDefaults) 
         : base(taskDialogDefaults, 1)
     {
-        Panel.Width = Defaults.ClientWidth;
+        SetupPanel();
+
+        LayoutDirty = true;
+    }
 
+    #region Private
+    private void SetupControls()
+    {
         _checkBox = new();
         _checkBox.AutoSize = true;
-        _checkBox.Padding = new Padding(Defaults.ComponentSpace, 0, 0, 0);
+        _checkBox.Padding = new Padding( Defaults.ComponentSpace, 0, 0, 0 );
         _checkBox.Margin = Defaults.NullMargin;
         _checkBox.CheckState = CheckState.Unchecked;
+    }
 
-        _tlp.Controls.Add(_checkBox, 0, 0);
+    private void SetupPanel()
+    {
+        Panel.Width = Defaults.ClientWidth;
+        SetupControls();
 
-        LayoutDirty = true;
+        _tlp.Controls.Add( _checkBox, 0, 0 );
     }
-
+    #endregion
     #region Protected/Internal
     /// <inheritdoc/>
     protected override void OnSizeChanged(bool performLayout = false)

Source/Krypton Components/Krypton.Toolkit/Controls Toolkit/KryptonTaskDialog/Elements/KryptonTaskDialogElementComboBox.cs

@@ -202,18 +202,22 @@ public override Color ForeColor
     #endregion
 
     #region Private
-    private void SetupPanel()
+    private void SetupControls()
     {
-        // the description that goes with the combobox
         _description.AutoSize = true;
         _description.Padding = Defaults.NullPadding;
-        _description.Margin = new(0, 0, 0, Defaults.ComponentSpace);
+        _description.Margin = new( 0, 0, 0, Defaults.ComponentSpace );
 
         _comboBox.AutoSize = true;
         _comboBox.Padding = Defaults.NullPadding;
         _comboBox.Margin = Defaults.NullMargin;
         _comboBox.Width = 250;
         DropDownStyle = InternalComboBoxStyle.DropDownList;
+    }
+
+    private void SetupPanel()
+    {
+        SetupControls();
 
         // add the controls
         _tlp.Controls.Add(_description, 0, 0);

Source/Krypton Components/Krypton.Toolkit/Controls Toolkit/KryptonTaskDialog/Elements/KryptonTaskDialogElementCommandLinkButtonsCollectionEditor.cs renamed to Source/Krypton Components/Krypton.Toolkit/Controls Toolkit/KryptonTaskDialog/Elements/KryptonTaskDialogElementCommandLinkButtons.ButtonsCollectionEditor.cs

@@ -19,7 +19,7 @@ public partial class KryptonTaskDialogElementCommandLinkButtons : KryptonTaskDia
 
     private readonly ObservableCollection<KryptonCommandLinkButton> _buttons;
     private readonly TableLayoutPanel _tlp;
-    private readonly FlowLayoutPanelDoubleBuffered _flp;
+    private readonly FlowLayoutPanel _flp;
     private readonly KryptonButton _btnFlowDirection;
     private bool _disposed;
     #endregion
@@ -172,10 +172,9 @@ private void SetButtonRoundedCorners(KryptonCommandLinkButton button)
         button.StateCommon.Border.Rounding = Defaults.GetCornerRouding(RoundedCorners);
     }
 
-    private void SetupPanel()
+    private void SetupTableLayoutPanel()
     {
-        Panel.Width = Defaults.ClientWidth;
-
+        _tlp.SetDoubleBuffered(true);
         _tlp.AutoSize = true;
         _tlp.Left = Defaults.PanelLeft;
         _tlp.AutoSizeMode = AutoSizeMode.GrowAndShrink;
@@ -185,37 +184,52 @@ private void SetupPanel()
         _tlp.Margin = Defaults.NullMargin;
         _tlp.BackColor = Color.Transparent;
 
-        _tlp.RowCount =  1;
+        _tlp.RowCount = 1;
         _tlp.ColumnCount = 2;
-        
+
         _tlp.RowStyles.Clear();
         _tlp.ColumnStyles.Clear();
-        _tlp.RowStyles.Add(new RowStyle(SizeType.AutoSize));
-        _tlp.ColumnStyles.Add(new ColumnStyle(SizeType.AutoSize));
-        _tlp.ColumnStyles.Add(new ColumnStyle(SizeType.AutoSize));
-
+        _tlp.RowStyles.Add( new RowStyle( SizeType.AutoSize ) );
+        _tlp.ColumnStyles.Add( new ColumnStyle( SizeType.AutoSize ) );
+        _tlp.ColumnStyles.Add( new ColumnStyle( SizeType.AutoSize ) );
+    }
 
+    private void SetupFlowLayoutPanel()
+    {
         // Note: do not dock the flow layout panel as that changes the behaviour of the flow direction.
         _flp.AutoSize = true;
+        _flp.SetDoubleBuffered( true );
         _flp.AutoSizeMode = AutoSizeMode.GrowAndShrink;
         _flp.Top = 0;
         _flp.Left = 0;
         _flp.Margin = Defaults.NullMargin;
-        _flp.Padding = new Padding(0, Defaults.ComponentSpace, 0, 0);
+        _flp.Padding = new Padding( 0, Defaults.ComponentSpace, 0, 0 );
         _flp.Width = Panel.Width - Defaults.PanelLeft - Defaults.PanelRight - 20;
-        _flp.MaximumSize = new Size(_flp.Width, 0);
+        _flp.MaximumSize = new Size( _flp.Width, 0 );
         _flp.BackColor = Color.Transparent;
+    }
 
+    private void SetupControls()
+    {
         _btnFlowDirection.AutoSize = true;
         _btnFlowDirection.AutoSizeMode = AutoSizeMode.GrowAndShrink;
         _btnFlowDirection.Size = Defaults.ButtonSize_24x75;
         _btnFlowDirection.MinimumSize = Defaults.ButtonSize_24x75;
-        _btnFlowDirection.Margin = new Padding(0, Defaults.ComponentSpace + 2, Defaults.ComponentSpace, 0);
+        _btnFlowDirection.Margin = new Padding( 0, Defaults.ComponentSpace + 2, Defaults.ComponentSpace, 0 );
         _btnFlowDirection.Text = _flp.FlowDirection.ToString();
         _btnFlowDirection.Orientation = VisualOrientation.Left;
         _btnFlowDirection.ButtonOrientation = VisualOrientation.Left;
         _btnFlowDirection.Visible = false;
         _btnFlowDirection.Click += OnBtnFlowDirectionClick;
+    }
+
+    private void SetupPanel()
+    {
+        Panel.Width = Defaults.ClientWidth;
+
+        SetupTableLayoutPanel();
+        SetupFlowLayoutPanel();
+        SetupControls();
 
         // Assemble the controls
         Panel.Controls.Add(_tlp);

Source/Krypton Components/Krypton.Toolkit/Controls Toolkit/KryptonTaskDialog/Elements/KryptonTaskDialogElementCommandLinkButtons.cs

@@ -24,7 +24,7 @@ public partial class KryptonTaskDialogElementContent : KryptonTaskDialogElementB
     #endregion
 
     #region Identity
-    public KryptonTaskDialogElementContent(KryptonTaskDialogDefaults taskDialogDefaults) 
+    public KryptonTaskDialogElementContent(KryptonTaskDialogDefaults taskDialogDefaults)         
         : base(taskDialogDefaults)
     {
         _disposed = false;
@@ -48,18 +48,9 @@ public KryptonTaskDialogElementContent(KryptonTaskDialogDefaults taskDialogDefau
     #endregion
 
     #region Private
-    private void SetupPictureBox()
-    {
-        _pictureBox.Visible = false;
-        _pictureBox.Margin = new Padding(0, 0, Defaults.ComponentSpace, 0);
-        _pictureBox.Padding = Defaults.NullPadding;
-        _pictureBox.BorderStyle = BorderStyle.None;
-        _pictureBox.SizeMode = PictureBoxSizeMode.CenterImage;
-        _pictureBox.Anchor = AnchorStyles.Top | AnchorStyles.Left;
-    }
-
     private void SetupTableLayoutPanel()
     {
+        _tlp.SetDoubleBuffered(true);
         _tlp.Left = Defaults.PanelLeft;
         _tlp.Top = Defaults.PanelTop;
         _tlp.AutoSize = true;
@@ -83,6 +74,13 @@ private void SetupTableLayoutPanel()
 
     private void SetupControls()
     {
+        _pictureBox.Visible = false;
+        _pictureBox.Margin = new Padding(0, 0, Defaults.ComponentSpace, 0);
+        _pictureBox.Padding = Defaults.NullPadding;
+        _pictureBox.BorderStyle = BorderStyle.None;
+        _pictureBox.SizeMode = PictureBoxSizeMode.CenterImage;
+        _pictureBox.Anchor = AnchorStyles.Top | AnchorStyles.Left;
+
         _textBox.AutoSize = false;
         _textBox.Height = 100;
         _textBox.Padding = new Padding(0);
@@ -93,7 +91,6 @@ private void SetupControls()
 
     private void SetupPanel()
     {
-        SetupPictureBox();
         SetupControls();
         SetupTableLayoutPanel();
 

Source/Krypton Components/Krypton.Toolkit/Controls Toolkit/KryptonTaskDialog/Elements/KryptonTaskDialogElementCommandLinkButtonsFlowLayoutPanelDoubleBuffered.cs

@@ -40,7 +40,7 @@ public KryptonTaskDialogElementContentTest(KryptonTaskDialogDefaults taskDialogD
             Size = new Size(_tlpWidth, 0),
             Location = new Point(Defaults.PanelLeft, Defaults.PanelTop)
         };
-
+        _tlp.SetDoubleBuffered(true);
         _tlp.RowStyles.Clear();
         _tlp.ColumnStyles.Clear();