using System.Drawing;
using iTextSharp.text.pdf;
using Volian.Base.Library;

namespace VG
{
	public interface IVGOutput
	{
		float Scale { get;}
		int DebugStatus { get; set; }
		void DrawLine(Pen pn, float startx, float starty, float endx, float endy);
		void DrawRectangle(Pen pn, RectangleF rectf);
		void DrawEllipse(Pen pn, float cx, float cy, float dx, float dy);
		void DrawImage(Bitmap bm, RectangleF rectf);
		void DrawString(string text, Font myFont, Brush brush, RectangleF rectf);
		void DrawArc(Pen pn, RectangleF rectf, float startAngle, float sweepAngle);
		SizeF MeasureString(string text, Font myFont);
		void Save(string fileName);
		float FontSizeAdjust { get;}
	}
	public partial class VGOut_Graphics: IVGOutput
	{
        public int DebugStatus { get; set; } = 0;
        private readonly Graphics _VGOutput;
        public VGOut_Graphics(Graphics vgOutput) => _VGOutput = vgOutput;
        public float Scale => 1;
        public void DrawLine(Pen pn, float startx, float starty, float endx, float endy) => _VGOutput.DrawLine(pn, startx, starty, endx, endy);
        public void DrawRectangle(Pen pn, RectangleF rectf)
		{
			_VGOutput.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceCopy;
			_VGOutput.FillRectangle(DebugStatus == 1 ? Brushes.Transparent : Brushes.White, rectf.X, rectf.Y, rectf.Width, rectf.Height);
			_VGOutput.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceOver;
			_VGOutput.DrawRectangle(pn, rectf.X, rectf.Y, rectf.Width, rectf.Height); 
		}
        public void DrawEllipse(Pen pn, float cx, float cy, float dx, float dy) => _VGOutput.DrawEllipse(pn, cx, cy, dx, dy);
        public void DrawImage(Bitmap bm, RectangleF rectf) => _VGOutput.DrawImage(bm, rectf);
        public void DrawString(string text, Font myFont, Brush brush, RectangleF rectf) => _VGOutput.DrawString(text, myFont, brush, rectf, StringFormat.GenericTypographic);
        public void DrawArc(Pen pn, RectangleF rectf, float startAngle, float sweepAngle) => _VGOutput.DrawArc(pn, rectf, startAngle, sweepAngle);
        public SizeF MeasureString(string text, Font myFont) => _VGOutput.MeasureString(text, myFont, new PointF(0, 0), StringFormat.GenericTypographic);
        public void Save(string fileName)
		{ ;/* Don't do anything*/ }
        public float FontSizeAdjust => .71f * 96f / _VGOutput.DpiX;  // Changed to adjust for Screen DPI Setting
    }
}