Microsoft.WindowsAzure.CAT.ServiceBusExplorer.ListenerControl.DrawTabControlTabs C# (CSharp) Method

        private void DrawTabControlTabs(TabControl tabControl, DrawItemEventArgs e, ImageList images)
        {
            // Get the bounding end of tab strip rectangles.
            var tabstripEndRect = tabControl.GetTabRect(tabControl.TabPages.Count - 1);
            var tabstripEndRectF = new RectangleF(tabstripEndRect.X + tabstripEndRect.Width, tabstripEndRect.Y - 5,
            tabControl.Width - (tabstripEndRect.X + tabstripEndRect.Width), tabstripEndRect.Height + 5);
            var leftVerticalLineRect = new RectangleF(2, tabstripEndRect.Y + tabstripEndRect.Height + 2, 2, tabControl.TabPages[tabControl.SelectedIndex].Height + 2);
            var rightVerticalLineRect = new RectangleF(tabControl.TabPages[tabControl.SelectedIndex].Width + 4, tabstripEndRect.Y + tabstripEndRect.Height + 2, 2, tabControl.TabPages[tabControl.SelectedIndex].Height + 2);
            var bottomHorizontalLineRect = new RectangleF(2, tabstripEndRect.Y + tabstripEndRect.Height + tabControl.TabPages[tabControl.SelectedIndex].Height + 2, tabControl.TabPages[tabControl.SelectedIndex].Width + 4, 2);
            RectangleF leftVerticalBarNearFirstTab = new Rectangle(0, 0, 2, tabstripEndRect.Height + 2);

            // First, do the end of the tab strip.
            // If we have an image use it.
            if (tabControl.Parent.BackgroundImage != null)
            {
                var src = new RectangleF(tabstripEndRectF.X + tabControl.Left, tabstripEndRectF.Y + tabControl.Top, tabstripEndRectF.Width, tabstripEndRectF.Height);
                e.Graphics.DrawImage(tabControl.Parent.BackgroundImage, tabstripEndRectF, src, GraphicsUnit.Pixel);
            }
            // If we have no image, use the background color.
            else
            {
                using (var backBrush = new SolidBrush(tabControl.Parent.BackColor))
                {
                    e.Graphics.FillRectangle(backBrush, tabstripEndRectF);
                    e.Graphics.FillRectangle(backBrush, leftVerticalLineRect);
                    e.Graphics.FillRectangle(backBrush, rightVerticalLineRect);
                    e.Graphics.FillRectangle(backBrush, bottomHorizontalLineRect);
                    if (mainTabControl.SelectedIndex != 0)
                    {
                        e.Graphics.FillRectangle(backBrush, leftVerticalBarNearFirstTab);
                    }
                }
            }

            // Set up the page and the various pieces.
            var page = tabControl.TabPages[e.Index];
            using (var backBrush = new SolidBrush(page.BackColor))
            {
                using (var foreBrush = new SolidBrush(page.ForeColor))
                {
                    var tabName = page.Text;

                    // Set up the offset for an icon, the bounding rectangle and image size and then fill the background.
                    var iconOffset = 0;
                    Rectangle tabBackgroundRect;

                    if (e.Index == mainTabControl.SelectedIndex)
                    {
                        tabBackgroundRect = e.Bounds;
                        e.Graphics.FillRectangle(backBrush, tabBackgroundRect);
                    }
                    else
                    {
                        tabBackgroundRect = new Rectangle(e.Bounds.X, e.Bounds.Y - 2, e.Bounds.Width, e.Bounds.Height + 4);
                        e.Graphics.FillRectangle(backBrush, tabBackgroundRect);
                        var rect = new Rectangle(e.Bounds.X - 2, e.Bounds.Y - 2, 1, 2);
                        e.Graphics.FillRectangle(backBrush, rect);
                        rect = new Rectangle(e.Bounds.X - 1, e.Bounds.Y - 2, 1, 2);
                        e.Graphics.FillRectangle(backBrush, rect);
                        rect = new Rectangle(e.Bounds.X + e.Bounds.Width, e.Bounds.Y - 2, 1, 2);
                        e.Graphics.FillRectangle(backBrush, rect);
                        rect = new Rectangle(e.Bounds.X + e.Bounds.Width + 1, e.Bounds.Y - 2, 1, 2);
                        e.Graphics.FillRectangle(backBrush, rect);
                    }

                    // If we have images, process them.
                    if (images != null)
                    {
                        // Get sice and image.
                        var size = images.ImageSize;
                        Image icon = null;
                        if (page.ImageIndex > -1)
                            icon = images.Images[page.ImageIndex];
                        else if (page.ImageKey != "")
                            icon = images.Images[page.ImageKey];

                        // If there is an image, use it.
                        if (icon != null)
                        {
                            var startPoint =
                                new Point(tabBackgroundRect.X + 2 + ((tabBackgroundRect.Height - size.Height) / 2),
                                          tabBackgroundRect.Y + 2 + ((tabBackgroundRect.Height - size.Height) / 2));
                            e.Graphics.DrawImage(icon, new Rectangle(startPoint, size));
                            iconOffset = size.Width + 4;
                        }
                    }

                    // Draw out the label.
                    var labelRect = new Rectangle(tabBackgroundRect.X + iconOffset, tabBackgroundRect.Y + 5,
                                                  tabBackgroundRect.Width - iconOffset, tabBackgroundRect.Height - 3);
                    using (var sf = new StringFormat { Alignment = StringAlignment.Center })
                    {
                        e.Graphics.DrawString(tabName, new Font(e.Font.FontFamily, 8.25F, e.Font.Style), foreBrush, labelRect, sf);
                    }
                }
            }
        }