inabox/InABox.DynamicGrid/FormDesigner/Controls/DFHeaderControl.cs

using InABox.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;

namespace InABox.DynamicGrid
{
    public class DFHeaderControl : DynamicFormControl<DFLayoutHeader>
    {
        public FormHeader Header = null!;

        protected override FrameworkElement Create()
        {

            var style = Control.Style;

            Header = new FormHeader
            {
                Collapsed = Control.Collapsed,
                HeaderText = Control.Header,
                FontWeight = style.IsBold ? FontWeights.Bold : FontWeights.Normal,
                FontStyle = style.IsItalic ? FontStyles.Italic : FontStyles.Normal,
            };
            Header.CollapsedChanged += (o, c) =>
            {
                FormDesignGrid.CollapseRows(Header, c);
            };
            if (FormDesignGrid.IsDesigning)
            {
                Header.IsEnabled = false;
            }

            if (style.FontSize > 0)
            {
                Header.FontSize = style.FontSize;
            }
            if (style.BackgroundColour != System.Drawing.Color.Empty)
            {
                Header.Background = new SolidColorBrush(ConvertColour(style.BackgroundColour));
            }
            if (style.ForegroundColour != System.Drawing.Color.Empty)
            {
                Header.Foreground = new SolidColorBrush(ConvertColour(style.ForegroundColour));
            }

            if (style.Underline == UnderlineType.Single)
            {
                Header.TextDecorations.Add(TextDecorations.Underline);
            }
            else if (style.Underline == UnderlineType.Double)
            {
                var underline1 = new TextDecoration
                {
                    Pen = new Pen
                    {
                        Brush = Header.Foreground,
                    }
                };
                var underline2 = new TextDecoration
                {
                    Pen = new Pen
                    {
                        Brush = Header.Foreground,
                    },
                    PenOffset = 2
                };
                Header.TextDecorations.Add(underline1);
                Header.TextDecorations.Add(underline2);
            }

            return Header;
        }

        private static Color ConvertColour(System.Drawing.Color colour)
        {
            return new Color { R = colour.R, G = colour.G, B = colour.B, A = colour.A };
        }
    }
}