ToolStripProfessionalRenderer.cs :  » 2.6.4-mono-.net-core » System.Windows.Forms » System » Windows » Forms » C# / CSharp Open Source

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C# / CSharp Open Source » 2.6.4 mono .net core » System.Windows.Forms 
System.Windows.Forms » System » Windows » Forms » ToolStripProfessionalRenderer.cs
//
// ToolStripProfessionalRenderer.cs
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2006 Jonathan Pobst
//
// Authors:
//  Jonathan Pobst (monkey@jpobst.com)
//
#if NET_2_0

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;

namespace System.Windows.Forms{
  public class ToolStripProfessionalRenderer : ToolStripRenderer
  {
    private ProfessionalColorTable color_table;
    private bool rounded_edges;

    #region Public Constructor
    public ToolStripProfessionalRenderer () : this (new ProfessionalColorTable ())
    {
    }
    
    public ToolStripProfessionalRenderer (ProfessionalColorTable professionalColorTable) : base ()
    {
      color_table = professionalColorTable;
      rounded_edges = true;
    }
    #endregion

    #region Public Properties
    public ProfessionalColorTable ColorTable {
      get { return this.color_table; }
    }

    public bool RoundedEdges {
      get { return this.rounded_edges; }
      set { this.rounded_edges = value; }
    }
    #endregion

    #region Protected Methods
    protected override void OnRenderArrow (ToolStripArrowRenderEventArgs e)
    {
      base.OnRenderArrow (e);
    }

    protected override void OnRenderButtonBackground (ToolStripItemRenderEventArgs e)
    {
      if (e.Item.Enabled == false)
        return;
        
      Rectangle paint_here = new Rectangle (0, 0, e.Item.Width, e.Item.Height);

      // Paint gradient background
      if (e.Item is ToolStripButton && (e.Item as ToolStripButton).Checked && !e.Item.Selected) {
        if (this.ColorTable.UseSystemColors)
          e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.ButtonCheckedHighlight), paint_here);
        else
          using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ButtonCheckedGradientBegin, this.ColorTable.ButtonCheckedGradientEnd, LinearGradientMode.Vertical))
          e.Graphics.FillRectangle (b, paint_here); }
      else
        if (e.Item is ToolStripDropDownItem && e.Item.Pressed) // || (e.Item as ToolStripMenuItem).DropDown.Visible == true))
          using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ToolStripGradientBegin, this.ColorTable.ToolStripGradientEnd, LinearGradientMode.Vertical))
            e.Graphics.FillRectangle (b, paint_here);
        else if (e.Item.Pressed || (e.Item is ToolStripButton && (e.Item as ToolStripButton).Checked))
          using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ButtonPressedGradientBegin, this.ColorTable.ButtonPressedGradientEnd, LinearGradientMode.Vertical))
            e.Graphics.FillRectangle (b, paint_here);
        else if (e.Item.Selected) // && !e.Item.Pressed)
          using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ButtonSelectedGradientBegin, this.ColorTable.ButtonSelectedGradientEnd, LinearGradientMode.Vertical))
            e.Graphics.FillRectangle (b, paint_here);
        else if (e.Item.BackColor != Control.DefaultBackColor && e.Item.BackColor != Color.Empty)
          using (Brush b = new SolidBrush (e.Item.BackColor))
            e.Graphics.FillRectangle (b, paint_here);

      paint_here.Width -= 1;
      paint_here.Height -= 1;

      // Paint border
      if (e.Item.Selected && !e.Item.Pressed)
        using (Pen p = new Pen (this.ColorTable.ButtonSelectedBorder))
          e.Graphics.DrawRectangle (p, paint_here);
      else if (e.Item.Pressed)
        using (Pen p = new Pen (this.ColorTable.ButtonPressedBorder))
          e.Graphics.DrawRectangle (p, paint_here);
      else if (e.Item is ToolStripButton && (e.Item as ToolStripButton).Checked)
        using (Pen p = new Pen (this.ColorTable.ButtonPressedBorder))
          e.Graphics.DrawRectangle (p, paint_here);

      base.OnRenderButtonBackground (e);
    }

    protected override void OnRenderDropDownButtonBackground (ToolStripItemRenderEventArgs e)
    {
      Rectangle paint_here = new Rectangle (0, 0, e.Item.Width, e.Item.Height);

      // Paint gradient background
      if (e.Item.Selected && !e.Item.Pressed)
        using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ButtonSelectedGradientBegin, this.ColorTable.ButtonSelectedGradientEnd, LinearGradientMode.Vertical))
          e.Graphics.FillRectangle (b, paint_here);
      else if (e.Item.Pressed)
        using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ImageMarginGradientMiddle, this.ColorTable.ImageMarginGradientEnd, LinearGradientMode.Vertical))
          e.Graphics.FillRectangle (b, paint_here);

      paint_here.Width -= 1;
      paint_here.Height -= 1;

      // Paint border
      if (e.Item.Selected && !e.Item.Pressed)
        using (Pen p = new Pen (this.ColorTable.ButtonSelectedBorder))
          e.Graphics.DrawRectangle (p, paint_here);
      else if (e.Item.Pressed)
        using (Pen p = new Pen (this.ColorTable.MenuBorder))
          e.Graphics.DrawRectangle (p, paint_here);

      base.OnRenderDropDownButtonBackground (e);
    }

    protected override void OnRenderGrip (ToolStripGripRenderEventArgs e)
    {
      if (e.GripStyle == ToolStripGripStyle.Hidden)
        return;

      if (e.GripDisplayStyle == ToolStripGripDisplayStyle.Vertical) {
        Rectangle r = new Rectangle (e.GripBounds.Left, e.GripBounds.Top + 5, 2, 2);

        for (int i = 0; i < e.GripBounds.Height - 12; i += 4) {
          e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.GripLight), r);
          r.Offset (0, 4);
      }

        Rectangle r2 = new Rectangle (e.GripBounds.Left - 1, e.GripBounds.Top + 4, 2, 2);

        for (int i = 0; i < e.GripBounds.Height - 12; i += 4) {
          e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.GripDark), r2);
          r2.Offset (0, 4);
        }
      }
      else {
        Rectangle r = new Rectangle (e.GripBounds.Left + 5, e.GripBounds.Top, 2, 2);

        for (int i = 0; i < e.GripBounds.Width - 11; i += 4) {
          e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.GripLight), r);
          r.Offset (4, 0);
        }

        Rectangle r2 = new Rectangle (e.GripBounds.Left + 4, e.GripBounds.Top - 1, 2, 2);

        for (int i = 0; i < e.GripBounds.Width - 11; i += 4) {
          e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.GripDark), r2);
          r2.Offset (4, 0);
        }
      }

      base.OnRenderGrip (e);
    }

    protected override void OnRenderImageMargin (ToolStripRenderEventArgs e)
    {
      if (!(e.ToolStrip is ToolStripOverflow)) {
        Rectangle side_gradient = new Rectangle (1, 2, 24, e.ToolStrip.Height - 3);
        using (LinearGradientBrush b = new LinearGradientBrush (side_gradient, this.ColorTable.ToolStripGradientBegin, this.ColorTable.ToolStripGradientEnd, LinearGradientMode.Horizontal))
          e.Graphics.FillRectangle (b, side_gradient);
      }

      base.OnRenderImageMargin (e);
    }

    protected override void OnRenderItemCheck (ToolStripItemImageRenderEventArgs e)
    {
      if (e.Item.Selected)
      {
        e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.CheckPressedBackground), e.ImageRectangle);
        e.Graphics.DrawRectangle (ThemeEngine.Current.ResPool.GetPen (this.ColorTable.ButtonPressedBorder), e.ImageRectangle);
      }
      else if (e.Item.Pressed)
      {
        e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.CheckSelectedBackground), e.ImageRectangle);
        e.Graphics.DrawRectangle (ThemeEngine.Current.ResPool.GetPen (this.ColorTable.ButtonSelectedBorder), e.ImageRectangle);
      }
      else
      {
        e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.CheckSelectedBackground), e.ImageRectangle);
        e.Graphics.DrawRectangle (ThemeEngine.Current.ResPool.GetPen (this.ColorTable.ButtonSelectedBorder), e.ImageRectangle);
      }
      if (e.Item.Image == null)
        ControlPaint.DrawMenuGlyph(e.Graphics, new Rectangle (6,5,7,6), MenuGlyph.Checkmark);
      
      base.OnRenderItemCheck (e);
    }
    
    protected override void OnRenderItemImage (ToolStripItemImageRenderEventArgs e)
    {
      base.OnRenderItemImage (e);
    }

    protected override void OnRenderItemText (ToolStripItemTextRenderEventArgs e)
    {
      base.OnRenderItemText (e);
    }

    protected override void OnRenderLabelBackground (ToolStripItemRenderEventArgs e)
    {
      base.OnRenderLabelBackground (e);
    }

    protected override void OnRenderMenuItemBackground (ToolStripItemRenderEventArgs e)
    {
      ToolStripMenuItem tsmi = (ToolStripMenuItem)e.Item;
      Rectangle paint_here;

      if (tsmi.IsOnDropDown) {
        paint_here = new Rectangle (1, 0, e.Item.Bounds.Width - 3, e.Item.Bounds.Height - 1);
        
        if (e.Item.Selected || e.Item.Pressed)
          if (e.Item.Enabled)
            e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.MenuItemSelectedGradientEnd), paint_here);

        if (tsmi.Selected || tsmi.Pressed)
          using (Pen p = new Pen (this.ColorTable.MenuItemBorder))
            e.Graphics.DrawRectangle (p, paint_here);
      }
      else {
        paint_here = new Rectangle (0, 0, e.Item.Width, e.Item.Height);

        if (e.Item.Pressed)
          using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ToolStripGradientBegin, this.ColorTable.ToolStripGradientEnd, LinearGradientMode.Vertical))
            e.Graphics.FillRectangle (b, paint_here);
        else if (e.Item.Selected)
          using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ButtonSelectedGradientBegin, this.ColorTable.ButtonSelectedGradientEnd, LinearGradientMode.Vertical))
            e.Graphics.FillRectangle (b, paint_here);
        else if (e.Item.BackColor != Control.DefaultBackColor && e.Item.BackColor != Color.Empty)
          using (Brush b = new SolidBrush (e.Item.BackColor))
            e.Graphics.FillRectangle (b, paint_here);

        paint_here.Width -= 1;
        paint_here.Height -= 1;

        if (tsmi.Selected || tsmi.Pressed) {
          if (tsmi.HasDropDownItems && tsmi.DropDown.Visible)
            using (Pen p = new Pen (this.ColorTable.MenuBorder))
              e.Graphics.DrawRectangle (p, paint_here);        
          else
            using (Pen p = new Pen (this.ColorTable.MenuItemBorder))
              e.Graphics.DrawRectangle (p, paint_here);
        }
      }
      
      base.OnRenderMenuItemBackground (e);
    }

    protected override void OnRenderOverflowButtonBackground (ToolStripItemRenderEventArgs e)
    {
      Rectangle paint_here;
      LinearGradientMode gradient_direction = e.ToolStrip.Orientation == Orientation.Vertical ? LinearGradientMode.Horizontal : LinearGradientMode.Vertical;
      
      if (e.ToolStrip.Orientation == Orientation.Horizontal)
        paint_here = new Rectangle (e.Item.Width - 11, 0, 11, e.Item.Height - 1);
      else
        paint_here = new Rectangle (0, e.Item.Height - 11, e.Item.Width - 1, 11);
      
      // Paint gradient background
      if (e.Item.Selected && !e.Item.Pressed)
        using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ButtonSelectedGradientBegin, this.ColorTable.ButtonSelectedGradientEnd, gradient_direction))
          e.Graphics.FillRectangle (b, paint_here);
      else if (e.Item.Pressed)
        using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ButtonPressedGradientBegin, this.ColorTable.ButtonPressedGradientEnd, gradient_direction))
          e.Graphics.FillRectangle (b, paint_here);
      else
        using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.OverflowButtonGradientBegin, this.ColorTable.OverflowButtonGradientEnd, gradient_direction))
          e.Graphics.FillRectangle (b, paint_here);

      // Paint the arrow
      PaintOverflowArrow (e, paint_here);

      base.OnRenderOverflowButtonBackground (e);
    }

    protected override void OnRenderSeparator (ToolStripSeparatorRenderEventArgs e)
    {
      if (e.Vertical) {
        Rectangle r = new Rectangle (4, 6, 1, e.Item.Height - 10);
        e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.SeparatorLight), r);

        Rectangle r2 = new Rectangle (3, 5, 1, e.Item.Height - 10);
        e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.SeparatorDark), r2);
      }
      else {
        if (!e.Item.IsOnDropDown) {
          Rectangle r = new Rectangle (6, 4, e.Item.Width - 10, 1);
          e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.SeparatorLight), r);
        }

        Rectangle r3;
        if (e.Item.IsOnDropDown) {
          if (e.Item.UseImageMargin)
            r3 = new Rectangle (35, 3, e.Item.Width - 36, 1);
          else
            r3 = new Rectangle (7, 3, e.Item.Width - 7, 1);
        } else
          r3 = new Rectangle (5, 3, e.Item.Width - 10, 1);
          
        e.Graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (this.ColorTable.SeparatorDark), r3);
      }

      base.OnRenderSeparator (e);
    }

    protected override void OnRenderSplitButtonBackground (ToolStripItemRenderEventArgs e)
    {
      ToolStripSplitButton tssb = (ToolStripSplitButton)e.Item;
      Rectangle paint_here = new Rectangle (0, 0, tssb.Width, tssb.Height);
      Rectangle button_part = new Rectangle (0, 0, tssb.ButtonBounds.Width, tssb.ButtonBounds.Height);

      // Paint gradient background
      if (tssb.ButtonSelected && !tssb.DropDownButtonPressed)
        using (Brush b = new LinearGradientBrush (paint_here, this.ColorTable.ButtonSelectedGradientBegin, this.ColorTable.ButtonSelectedGradientEnd, LinearGradientMode.Vertical))
          e.Graphics.FillRectangle (b, paint_here);
      if (tssb.ButtonPressed)
        using (Brush b = new LinearGradientBrush (button_part, this.ColorTable.ButtonPressedGradientBegin, this.ColorTable.ButtonPressedGradientEnd, LinearGradientMode.Vertical))
          e.Graphics.FillRectangle (b, button_part);

      paint_here.Width -= 1;
      paint_here.Height -= 1;

      // Paint border
      if (e.Item.Selected && !tssb.DropDownButtonPressed)
        using (Pen p = new Pen (this.ColorTable.ButtonSelectedBorder))
        {
          e.Graphics.DrawRectangle (p, paint_here);
          e.Graphics.DrawLine (p, button_part.Right, 0, button_part.Right, button_part.Height);
        }
      else if (e.Item.Pressed)
        using (Pen p = new Pen (this.ColorTable.MenuBorder))
          e.Graphics.DrawRectangle (p, paint_here);

      base.OnRenderSplitButtonBackground (e);
    }

    protected override void OnRenderToolStripBackground (ToolStripRenderEventArgs e)
    {
      // Don't clear and fill the background if we already painted an image there
      if (e.ToolStrip.BackgroundImage != null) {
        if (e.ToolStrip is StatusStrip)
          e.Graphics.DrawLine (Pens.White, e.AffectedBounds.Left, e.AffectedBounds.Top, e.AffectedBounds.Right, e.AffectedBounds.Top);
      
        return;
      }
        
      if (e.ToolStrip is ToolStripDropDown) {
        e.Graphics.Clear (this.ColorTable.ToolStripDropDownBackground);
        return;
      }
      
      if (e.ToolStrip is MenuStrip || e.ToolStrip is StatusStrip) {
        using (LinearGradientBrush b = new LinearGradientBrush (e.AffectedBounds, this.ColorTable.MenuStripGradientBegin, this.ColorTable.MenuStripGradientEnd, e.ToolStrip.Orientation == Orientation.Horizontal ? LinearGradientMode.Horizontal : LinearGradientMode.Vertical))
          e.Graphics.FillRectangle (b, e.AffectedBounds);
      }
      else
        using (LinearGradientBrush b = new LinearGradientBrush (e.AffectedBounds, this.ColorTable.ToolStripGradientBegin, this.ColorTable.ToolStripGradientEnd, e.ToolStrip.Orientation == Orientation.Vertical ? LinearGradientMode.Horizontal : LinearGradientMode.Vertical))
          e.Graphics.FillRectangle (b, e.AffectedBounds);
          
      if (e.ToolStrip is StatusStrip)
        e.Graphics.DrawLine (Pens.White, e.AffectedBounds.Left, e.AffectedBounds.Top, e.AffectedBounds.Right, e.AffectedBounds.Top);

      base.OnRenderToolStripBackground (e);
    }

    protected override void OnRenderToolStripBorder (ToolStripRenderEventArgs e)
    {
      if (e.ToolStrip is ToolStripDropDown) {
        if (e.ToolStrip is ToolStripOverflow)
          e.Graphics.DrawLines (ThemeEngine.Current.ResPool.GetPen (this.ColorTable.MenuBorder), new Point[] { e.AffectedBounds.Location, new Point (e.AffectedBounds.Left, e.AffectedBounds.Bottom - 1), new Point (e.AffectedBounds.Right - 1, e.AffectedBounds.Bottom - 1), new Point (e.AffectedBounds.Right - 1, e.AffectedBounds.Top), new Point (e.AffectedBounds.Left, e.AffectedBounds.Top) });
        else
          e.Graphics.DrawLines (ThemeEngine.Current.ResPool.GetPen (this.ColorTable.MenuBorder), new Point[] { new Point (e.AffectedBounds.Left + e.ConnectedArea.Left, e.AffectedBounds.Top), e.AffectedBounds.Location, new Point (e.AffectedBounds.Left, e.AffectedBounds.Bottom - 1), new Point (e.AffectedBounds.Right - 1, e.AffectedBounds.Bottom - 1), new Point (e.AffectedBounds.Right - 1, e.AffectedBounds.Top), new Point (e.AffectedBounds.Left + e.ConnectedArea.Right, e.AffectedBounds.Top) });
        return;
      }

      if (e.ToolStrip is MenuStrip || e.ToolStrip is StatusStrip)
        return;
        
      using (Pen p = new Pen (this.ColorTable.ToolStripBorder)) {
        if (this.RoundedEdges == true) {
          e.Graphics.DrawLine (p, new Point (2, e.ToolStrip.Height - 1), new Point (e.ToolStrip.Width - 3, e.ToolStrip.Height - 1));
          e.Graphics.DrawLine (p, new Point (e.ToolStrip.Width - 2, e.ToolStrip.Height - 2), new Point (e.ToolStrip.Width - 1, e.ToolStrip.Height - 2));
          e.Graphics.DrawLine (p, new Point (e.ToolStrip.Width - 1, 2), new Point (e.ToolStrip.Width - 1, e.ToolStrip.Height - 3));
        }
        else
          e.Graphics.DrawLine (p, new Point (e.ToolStrip.Left, e.ToolStrip.Bottom - 1), new Point (e.ToolStrip.Width, e.ToolStrip.Bottom - 1));
      }

      base.OnRenderToolStripBorder (e);
    }
    
    protected override void OnRenderToolStripContentPanelBackground (ToolStripContentPanelRenderEventArgs e)
    {
      base.OnRenderToolStripContentPanelBackground (e);
    }
    
    protected override void OnRenderToolStripPanelBackground (ToolStripPanelRenderEventArgs e)
    {
      using (LinearGradientBrush b = new LinearGradientBrush (e.ToolStripPanel.Bounds, this.ColorTable.MenuStripGradientBegin, this.ColorTable.MenuStripGradientEnd, e.ToolStripPanel.Orientation == Orientation.Horizontal ? LinearGradientMode.Horizontal : LinearGradientMode.Vertical))
        e.Graphics.FillRectangle (b, e.ToolStripPanel.Bounds);

      base.OnRenderToolStripPanelBackground (e);
    }

    protected override void OnRenderToolStripStatusLabelBackground (ToolStripItemRenderEventArgs e)
    {
      base.OnRenderToolStripStatusLabelBackground (e);
    }
    #endregion

    #region Private Methods
    private static void PaintOverflowArrow (ToolStripItemRenderEventArgs e, Rectangle paint_here)
    {
      if (e.ToolStrip.Orientation == Orientation.Horizontal) {
        // Paint down arrow
        Point arrow_loc = new Point (paint_here.X + 2, paint_here.Bottom - 9);

        e.Graphics.DrawLine (Pens.White, arrow_loc.X + 1, arrow_loc.Y + 1, arrow_loc.X + 5, arrow_loc.Y + 1);
        e.Graphics.DrawLine (Pens.Black, arrow_loc.X, arrow_loc.Y, arrow_loc.X + 4, arrow_loc.Y);

        e.Graphics.DrawLine (Pens.White, arrow_loc.X + 3, arrow_loc.Y + 4, arrow_loc.X + 5, arrow_loc.Y + 4);
        e.Graphics.DrawLine (Pens.White, arrow_loc.X + 3, arrow_loc.Y + 5, arrow_loc.X + 4, arrow_loc.Y + 5);
        e.Graphics.DrawLine (Pens.White, arrow_loc.X + 3, arrow_loc.Y + 4, arrow_loc.X + 3, arrow_loc.Y + 6);

        e.Graphics.DrawLine (Pens.Black, arrow_loc.X, arrow_loc.Y + 3, arrow_loc.X + 4, arrow_loc.Y + 3);
        e.Graphics.DrawLine (Pens.Black, arrow_loc.X + 1, arrow_loc.Y + 4, arrow_loc.X + 3, arrow_loc.Y + 4);
        e.Graphics.DrawLine (Pens.Black, arrow_loc.X + 2, arrow_loc.Y + 4, arrow_loc.X + 2, arrow_loc.Y + 5);
      } else {
        Point arrow_loc = new Point (paint_here.Right - 9, paint_here.Y + 2);

        e.Graphics.DrawLine (Pens.White, arrow_loc.X + 1, arrow_loc.Y + 1, arrow_loc.X + 1, arrow_loc.Y + 5);
        e.Graphics.DrawLine (Pens.Black, arrow_loc.X, arrow_loc.Y, arrow_loc.X, arrow_loc.Y + 4);

        e.Graphics.DrawLine (Pens.White, arrow_loc.X + 4, arrow_loc.Y + 3, arrow_loc.X + 4, arrow_loc.Y + 5);
        e.Graphics.DrawLine (Pens.White, arrow_loc.X + 5, arrow_loc.Y + 3, arrow_loc.X + 5, arrow_loc.Y + 4);
        e.Graphics.DrawLine (Pens.White, arrow_loc.X + 4, arrow_loc.Y + 3, arrow_loc.X + 6, arrow_loc.Y + 3);

        e.Graphics.DrawLine (Pens.Black, arrow_loc.X + 3, arrow_loc.Y, arrow_loc.X + 3, arrow_loc.Y + 4);
        e.Graphics.DrawLine (Pens.Black, arrow_loc.X + 4, arrow_loc.Y + 1, arrow_loc.X + 4, arrow_loc.Y + 3);
        e.Graphics.DrawLine (Pens.Black, arrow_loc.X + 4, arrow_loc.Y + 2, arrow_loc.X + 5, arrow_loc.Y + 2);
      }
    }
    #endregion
  }
}
#endif
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