using System;
using System.Windows.Forms;

namespace TBF.UI.Item
{
    public class EditFloat
    {
        string name;
        float variable;
        float lowerLimit;
        float upperLimit;
        string format;
        TextBox textBox;

        public EditFloat(string name, ref float variable, float lowerLimit, float upperLimit)
        {
            this.name = name;
            this.variable = variable;
            this.lowerLimit = lowerLimit;
            this.upperLimit = upperLimit;
            this.format = null;

            this.textBox = new TextBox();
        }

        public EditFloat(string name, ref float variable, float lowerLimit)
            : this(name, ref variable, lowerLimit, Single.MaxValue)
        {
        }

        public EditFloat(string name, ref float variable)
            : this(name, ref variable, Single.MinValue, Single.MaxValue)
        {
        }

        public string Name() { return name; }
        public Control EmbeddedControl() { return textBox; }
        public string Print() { return string.IsNullOrEmpty(format) ? variable.ToString() : variable.ToString(format); }
        public void Update(string strValue) { variable = Utils.ParseSFloat(strValue); }

        public bool Validate(string strValue, out string message)
        {
            float dummy;
            if (!Utils.TryParseSFloat(strValue, out dummy))
            {
                message = string.Format("{0} is invalid", name);
                return false;
            }
            else if (dummy < lowerLimit)
            {
                message = string.Format("{0} is smaller then {1}", name, lowerLimit);
                return false;
            }
            else if (dummy > upperLimit)
            {
                message = string.Format("{0} is larger then {1}", name, upperLimit);
                return false;
            }
            else
            {
                message = string.Empty;
                return true;
            }
        }
    }
}