using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using FastReport.Utils;

namespace FastReport.Controls
{
    /// <summary>
    /// Represents the label with line.
    /// </summary>
    [ToolboxItem(false)]
    public class LabelLine : Control
    {
        /// <inheritdoc/>
        protected override void OnPaint(PaintEventArgs e)
        {
            Graphics g = e.Graphics;
#if AVALONIA
            TextRenderer.FontScale = g.FontScale;
            g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
#endif
            using (Pen pen = new Pen(Color.Silver, this.LogicalToDevice(1)))
            {
                int x = 0;
                if (RightToLeft == RightToLeft.Yes)
                {
                    if (!String.IsNullOrEmpty(Text))
                    {
                        x = Width - TextRenderer.MeasureText(Text, Font).Width;
                        TextRenderer.DrawText(g, Text, Font, new Point(x, 0), ForeColor, TextFormatFlags.RightToLeft);
                        x -= this.LogicalToDevice(4);
                    }
                    g.DrawLine(pen, 0, Height / 2, x, Height / 2);
                }
                else
                {
                    if (!String.IsNullOrEmpty(Text))
                    {
                        TextRenderer.DrawText(g, Text, Font, new Point(0, 0), ForeColor);
                        x += TextRenderer.MeasureText(Text, Font).Width + this.LogicalToDevice(4);
                    }
                    g.DrawLine(pen, x, Height / 2, Width, Height / 2);
                }
            }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="LabelLine"/> class.
        /// </summary>
        public LabelLine()
        {
            SetStyle(ControlStyles.AllPaintingInWmPaint, true);
            SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
            SetStyle(ControlStyles.SupportsTransparentBackColor, true);
        }
    }
}