protected override void OnPaint(PaintEventArgs e)
{
GraphicsState gs = e.Graphics.Save();
GraphicsState gsCur = null;
e.Graphics.TranslateTransform(this.AutoScrollPosition.X, this.AutoScrollPosition.Y);
foreach (DrawingLayer lstDrawings in DrawingLayers)
{
if (lstDrawings.Visible)
{
foreach (DrawingItem obj in lstDrawings)
{
if (curDrawing != null)
{
if (obj.DrawingId == curDrawing.DrawingId)
{
gsCur = e.Graphics.Save();
}
}
obj.Draw(e.Graphics);
}
}
}
if (curDrawing != null)
{
if (gsCur != null)
{
e.Graphics.Restore(gsCur);
}
//draw coordinate lines
e.Graphics.DrawLine(System.Drawing.Pens.CadetBlue, -600, 0, 600, 0);
e.Graphics.DrawLine(System.Drawing.Pens.CadetBlue, 0, -600, 0, 600);
curDrawing.Draw(e.Graphics);
}
e.Graphics.Restore(gs);
if (formHS != null)
{
e.Graphics.DrawRectangle(new System.Drawing.Pen(System.Drawing.Color.Blue, 8), formHS.Left - 8, formHS.Top - 8, formHS.Width + 16, formHS.Height + 16);
}
if (sHelp.Length > 0)
{
e.Graphics.DrawString(sHelp, ftHelp, System.Drawing.Brushes.LightGreen, xH, yH);
}
}
