protected override void OnPaint(PaintEventArgs e)
{
if (target == null)
{
return;
}
Point car = PointToClient(target.PointToScreen(target.PlaceToPoint(target.Selection.Start)));
Size fontSize = TextRenderer.MeasureText("W", Font);
int column = 0;
e.Graphics.FillRectangle(new LinearGradientBrush(new Rectangle(0, 0, Width, Height), BackColor, BackColor2, 270), new Rectangle(0, 0, Width, Height));
float columnWidth = target.CharWidth;
var sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Near;
var zeroPoint = target.PositionToPoint(0);
zeroPoint = PointToClient(target.PointToScreen(zeroPoint));
using (var pen = new Pen(TickColor))
using (var textBrush = new SolidBrush(ForeColor))
{
for (float x = zeroPoint.X; x < Right; x += columnWidth, ++column)
{
if (column % 10 == 0)
{
e.Graphics.DrawString(column.ToString(), Font, textBrush, x, 0f, sf);
}
e.Graphics.DrawLine(pen, (int)x, fontSize.Height + (column % 5 == 0 ? 1 : 3), (int)x, Height - 4);
}
}
using (var pen = new Pen(TickColor))
{
e.Graphics.DrawLine(pen, new Point(car.X - 3, Height - 3), new Point(car.X + 3, Height - 3));
}
using (var pen = new Pen(CaretTickColor))
{
e.Graphics.DrawLine(pen, new Point(car.X - 2, fontSize.Height + 3), new Point(car.X - 2, Height - 4));
e.Graphics.DrawLine(pen, new Point(car.X, fontSize.Height + 1), new Point(car.X, Height - 4));
e.Graphics.DrawLine(pen, new Point(car.X + 2, fontSize.Height + 3), new Point(car.X + 2, Height - 4));
}
}
