private protected void SetCheckState(CheckStateType value, bool firechange)
{
if (checkstate != value)
{
checkstate = value;
if (GroupRadioButton && Parent != null && checkstate == CheckStateType.Checked)
{
foreach (GLCheckBoxBase c in Parent.ControlsZ.OfType <GLCheckBoxBase>())
{
if (c != this && c.GroupRadioButton == true && c.checkstate != CheckStateType.Unchecked) // if not us, in a group, and not unchecked
{
c.checkstate = CheckStateType.Unchecked; // set directly
if (firechange)
{
c.OnCheckChanged(); // fire change
}
c.Invalidate();
}
}
}
if (firechange)
{
OnCheckChanged(); // fire change on us
}
Invalidate();
}
}
private protected void DrawTick(Rectangle checkarea, Color c1, CheckStateType chk, Graphics gr)
{
gr.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
if (chk == CheckStateType.Checked)
{
Point pt1 = new Point(checkarea.X + 2, checkarea.Y + checkarea.Height / 2 - 1);
Point pt2 = new Point(checkarea.X + checkarea.Width / 2 - 1, checkarea.Bottom - 2);
Point pt3 = new Point(checkarea.X + checkarea.Width - 2, checkarea.Y);
using (Pen pcheck = new Pen(c1, 2.0F))
{
gr.DrawLine(pcheck, pt1, pt2);
gr.DrawLine(pcheck, pt2, pt3);
}
}
else if (chk == CheckStateType.Indeterminate)
{
Size cb = new Size(checkarea.Width - 5, checkarea.Height - 5);
if (cb.Width > 0 && cb.Height > 0)
{
using (Brush br = new SolidBrush(c1))
{
gr.FillRectangle(br, new Rectangle(new Point(checkarea.X + 2, checkarea.Y + 2), cb));
}
}
}
gr.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.None;
}
