NTERA/NTERA/Console/RenderItem/TextRenderItem.cs

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;
using NTERA.Core;
using NTERA.Core.Interop;

namespace NTERA.Console.RenderItem
{
	public class TextRenderItem : BaseRenderItem
	{
		public Font Font { get; set; } = new Font("MS UI Gothic", 12);

		public SolidBrush TextBrush { get; set; } = new SolidBrush(Color.White);

		public string Text { get; set; }

		public DisplayLineAlignment Alignment { get; set; }

		public PrintFlags Flags { get; set; }

		private static readonly string[] FullwidthCharacters = "０１２３４５６７８９。".ToCharArray().Select(x => x.ToString()).ToArray();

		private static string AlignText(string input)
		{
			foreach (var num in FullwidthCharacters)
			{
				input = input.Replace(num, $" {num}");
			}

			return input.Replace("　", "    ");
		}


		public TextRenderItem(string text, DisplayLineAlignment alignment = DisplayLineAlignment.LEFT, Color? color = null)
		{
			Text = AlignText(text); //text.Replace("　", "    ").Replace("６", " ６"); //" 6   ", " ６  "
			Alignment = alignment;
			
			if (color.HasValue)
				TextBrush = new SolidBrush(color.Value);
		}
		

		public override int Render(Graphics graphics, Rectangle renderArea, Rectangle invalidatedArea, Point mousePointer)
		{
			int width = (int)graphics.MeasureString(Text, Font).Width;

			int x;

			switch (Alignment)
			{
				default:
				case DisplayLineAlignment.LEFT:
					x = renderArea.X;
					break;
				case DisplayLineAlignment.CENTER:
					x = (renderArea.Width - width) / 2;
					break;
				case DisplayLineAlignment.RIGHT:
					x = renderArea.Width - width;
					break;
			}

			//graphics.DrawString(Text, Font, TextBrush, x, renderArea.Y);

			//return x + width;

			var point = new Point(x, renderArea.Y);

			var textFormatFlags = TextFormatFlags.ExpandTabs;
			if (!Flags.SingleLine) {
				// We want word wrapping
				textFormatFlags |= TextFormatFlags.WordBreak;
				// FIXME: We will need to make a rectangle, not a point,
				// to draw the text in
			}

			TextRenderer.DrawText(graphics, Text, Font, point, TextBrush.Color, textFormatFlags);

			return TextRenderer.MeasureText(graphics, Text, Font).Width + renderArea.X;
		}

		public static List<TextRenderItem> CreateFromLinedText(string text)
		{
			List<TextRenderItem> items = new List<TextRenderItem>();

			foreach (string line in text.Split("\r\n".ToCharArray(), StringSplitOptions.RemoveEmptyEntries))
			{
				items.Add(new TextRenderItem(line));
			}

			return items;
		}
	}
}