using System;
using System.Drawing;
using HeuristicLab.Visualization;
using Rectangle = HeuristicLab.Visualization.Rectangle;

namespace HeuristicLab.EvolutionaryTracking.Views {
  public class VisualGenealogyGraphTextLabel : Rectangle {
    private string text;
    public string Text { get { return text; } set { text = value; } }

    private Font font;
    public Font Font { get { return font; } set { font = value; } }

    private Brush brush;
    public Brush Brush { get { return brush; } set { brush = value; } }

    public VisualGenealogyGraphTextLabel(IChart chart, PointD lowerLeft, PointD upperRight)
      : base(chart, lowerLeft, upperRight) {
    }
    public VisualGenealogyGraphTextLabel(IChart chart, double x1, double y1, double x2, double y2)
      : this(chart, new PointD(x1, y1), new PointD(x2, y2)) {
    }
    public VisualGenealogyGraphTextLabel(IChart chart, PointD lowerLeft, PointD upperRight, Pen pen, Brush brush)
      : base(chart, lowerLeft, upperRight, pen, brush) {
    }
    public VisualGenealogyGraphTextLabel(IChart chart, double x1, double y1, double x2, double y2, Pen pen, Brush brush)
      : this(chart, new PointD(x1, y1), new PointD(x2, y2), pen, brush) {
    }

    public override void Draw(Graphics graphics) {
      Point p = Chart.TransformWorldToPixel(new PointD(LowerLeft.X, LowerLeft.Y + Size.Height));
      Size s = Chart.TransformWorldToPixel(Size);

      float fontSize = s.Height;
      font = new Font(font.Name, fontSize, Font.Style, GraphicsUnit.Pixel);
      graphics.DrawString(text, font, brush, p.X, p.Y);
    }

    public EventHandler Update;
    protected virtual void OnUpdate() {
      if ((UpdateEnabled) && (Update != null)) {
        Update(this, new EventArgs());
      }
      base.OnUpdate();
    }
  }
}