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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Cairo;
using System.Xml.Serialization;
namespace Crow
{
public class GraduatedSlider : Slider
{
#region CTOR
public GraduatedSlider() : base()
{}
public GraduatedSlider(double minimum, double maximum, double step)
: base()
{
Minimum = minimum;
Maximum = maximum;
SmallIncrement = step;
LargeIncrement = step * 5;
}
#endregion
protected override void DrawGraduations(Context gr, PointD pStart, PointD pEnd)
{
Rectangle r = ClientRectangle;
Foreground.SetAsSource (gr);
gr.LineWidth = 2;
gr.MoveTo(pStart);
gr.LineTo(pEnd);
gr.Stroke();
gr.LineWidth = 1;
double sst = unity * SmallIncrement;
double bst = unity * LargeIncrement;
PointD vBar = new PointD(0, sst);
for (double x = Minimum; x <= Maximum - Minimum; x += SmallIncrement)
{
double lineLength = r.Height / 3;
if (x % LargeIncrement != 0)
lineLength /= 3;
PointD p = new PointD(pStart.X + x * unity, pStart.Y);
gr.MoveTo(p);
gr.LineTo(new PointD(p.X, p.Y + lineLength));
}
gr.Stroke();
}
}
}
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