/// <summary>
/// Paint on the ruler ticks
/// </summary>
private void RulerHorz_Paint(object sender, PaintEventArgs e)
{
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
e.Graphics.FillRectangle(new SolidBrush(RulerHorz.BackColor), e.ClipRectangle);
Pen DrawPen = new Pen(Color.Black);
SolidBrush TextBrush = new SolidBrush(RulerHorz.ForeColor);
RectangleF Rect;
string Text = string.Empty;
// Determine the offset for the Ruler
// First account for the difference in where the ruler's origin is vs the Workspace's origin.
int StartTick = pnlWorkspace.Location.X - RulerHorz.Location.X;
// Next, determine where the origin of the Canvas is relative to this point
StartTick += pnlEasel.Location.X;
StartTick += CanvasPane.Location.X;
//Debug.WriteLine(CanvasPane.Location);
int Tick = 0;
int Bump = 0;
int TextPos = 0;
for (int x = 0; x <= _Document.Scaling.LatticeSize.Width; x++)
{
Tick = StartTick + (x * _Document.Scaling.CellScale);
Bump = (x % 10 == 0) ? 12 : ((x % 10 == 5) ? 8 : 6);
e.Graphics.DrawLine(DrawPen, new Point(Tick, RulerHorz.Height - Bump), new Point(Tick, RulerHorz.Height));
if (x % 10 == 0)
{
Text = x.ToString();
TextPos = RulerHorz.Height - Bump;
Rect = new RectangleF(new Point(Tick, TextPos), e.Graphics.MeasureString(Text, RulerHorz.Font));
TextPos -= (int)Rect.Height;
Rect.Location = new PointF(Tick - (Rect.Width / 2), TextPos);
e.Graphics.DrawString(Text, RulerHorz.Font, TextBrush, Rect, _rulerTextFormatter);
}
}
// If the mouse is over the CanvasPane, draw the position tick mark
if (_mouseOverCanvasPane)
{
Tick = StartTick + _global.CalcCanvasPoint(_global.UI.MousePosition).X;
e.Graphics.DrawLine(DrawPen, new Point(Tick, RulerHorz.Top), new Point(Tick, RulerHorz.Height));
}
DrawPen?.Dispose();
TextBrush?.Dispose();
}
