private void PaintGrid(Graphics graph)
{
if (!ShowGrid)
{
return;
}
Pen pen = new Pen(Color.DarkGray, 1.0f)
{
DashStyle = DashStyle.Dot
};
int origin = GraphicsMapper.Instance.TransformInt(Ruler.RulerSize.Height);
graph.TranslateTransform(origin, origin);
for (int i = 0; i < LayerHeight; i += 50)
{
BaseRuler.DrawHorzLine(graph, pen, 0, LayerWidth, i);
}
for (int i = 0; i < LayerWidth; i += 50)
{
BaseRuler.DrawVertLine(graph, pen, i, 0, LayerHeight);
}
graph.TranslateTransform(-origin, -origin);
}
protected override void PrePaint(PaintEventArgs args)
{
base.PrePaint(args);
Point pt = GraphicsMapper.Instance.TransformPoint(new Point(ViewConsts.RulerHeight, ViewConsts.RulerHeight));
Graphics graph = args.Graphics;
int width = GraphicsMapper.Instance.TransformInt(ViewConsts.Width);
int height = GraphicsMapper.Instance.TransformInt(ViewConsts.Height);
#if DEBUG
BaseRuler.DrawHorzLine(graph, Pens.Black, 0, width, height);
BaseRuler.DrawVertLine(graph, Pens.Black, width, 0, height);
#endif
Matrix rotate_at_center = new Matrix();
rotate_at_center.RotateAt(Rotation, new PointF(width / 2f, height / 2f));
graph.Transform = rotate_at_center;
graph.TranslateTransform(-pt.X, -pt.Y);
}