public void Draw(Graphics g)
{
if (ShowRulers)
{
GraphicsProperties gp = Program.SysConfig.GraphicsPropertiesManager.GetPropertiesByName("Ruler");
using (Pen pen = new Pen(Color.FromArgb(gp.Alpha, gp.Color), gp.PenWidth))
{
//以下代码阅读可能带来不适
var baseMicron = BaseMajorValue * pictureBox.DigitalMagnification;
micronPixels = pictureBox.MicronToPixel(baseMicron) * Program.SysConfig.Lense.FineAdjustment / 100f;
PaintXAxis(g, pen, gp);
PaintYAxis(g, pen, gp);
}
}
}
/// <summary>
/// Get GraphicsProperties by draw object name
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public GraphicsProperties GetPropertiesByName(string name)
{
GraphicsProperties propertie = null;
switch (name)
{
case "Line":
case "直线":
propertie = properties[0];
break;
case "Rectangle":
case "矩形":
propertie = properties[1];
break;
case "Ellipse":
case "椭圆":
propertie = properties[2];
break;
case "Polygon":
propertie = properties[3];
break;
case "Circle":
propertie = properties[4];
break;
case "Text":
propertie = properties[5];
break;
case "Ruler":
propertie = properties[6];
break;
default:
propertie = properties[0];
break;
}
return(propertie);
}
/// <summary>
/// X轴绘制
/// </summary>
/// <param name="g"></param>
/// <param name="pen"></param>
/// <param name="gp"></param>
private void PaintXAxis(Graphics g, Pen pen, GraphicsProperties gp)
{
var startXPositive = pictureBox.Width / 2;
var endXPositive = pictureBox.Width;
var startY = pictureBox.Height / 2;
var endY = pictureBox.Height / 2 - 10;
double startXNegative = pictureBox.Width / 2;
//micronPixels = CentimeterToPixel(1) * Program.SysConfig.Lense.FineAdjustment / 100f;
int count = 0;
for (double i = startXPositive; i < endXPositive + micronPixels; i += micronPixels)
{
var positiveNumber = count * baseMajorValue /* / (Program.SysConfig.Lense.Factor * pictureBox.Zoom)*/;
//draw positive major ticks
g.DrawLine(pen, (float)i, startY, (float)i, endY);
Font font = new Font("Microsoft Sans Serif", 8.25f + gp.PenWidth / 10f);
if (i != startXPositive)
{
PaintXDividePositiveAxis(g, pen, font, gp, count, i - micronPixels, i, startY, endY);
}
//draw positive minor ticks
//g.DrawLine(pen, (float)(i + micronPixels / 2), startY, (float)(i + micronPixels / 2), startY - 5);
string pns = positiveNumber < 10 ? positiveNumber.ToString("F1") : positiveNumber.ToString("F0");
var pSize = g.MeasureString(pns, font);
if (positiveNumber > 0)
{
if (micronPixels < 80)
{
if (count % 2 == 0)
{
using (SolidBrush sb = new SolidBrush(Color.FromArgb(gp.Alpha, gp.Color)))
g.DrawString(pns, font, sb, (float)(i - pSize.Width / 2), endY - pSize.Height);
}
}
else
{
using (SolidBrush sb = new SolidBrush(Color.FromArgb(gp.Alpha, gp.Color)))
g.DrawString(pns, font, sb, (float)(i - pSize.Width / 2), endY - pSize.Height);
}
}
//draw negative major ticks
g.DrawLine(pen, (float)startXNegative, startY, (float)startXNegative, endY);
//draw negative minor ticks
//g.DrawLine(pen, (float)(startXNegative - micronPixels / 2), startY, (float)(startXNegative - micronPixels / 2), startY - 5);
var negativeNumber = /*-1 * */ positiveNumber;
var nns = negativeNumber < 10 ? negativeNumber.ToString("F1") : negativeNumber.ToString("F0");
var nSize = g.MeasureString(nns, font);
if (negativeNumber > 0)
{
if (micronPixels < 80)
{
if (count % 2 == 0)
{
using (SolidBrush sb = new SolidBrush(Color.FromArgb(gp.Alpha, gp.Color)))
g.DrawString(nns, font, sb, (float)(startXNegative - nSize.Width / 2f), endY - nSize.Height);
}
}
else
{
using (SolidBrush sb = new SolidBrush(Color.FromArgb(gp.Alpha, gp.Color)))
g.DrawString(nns, font, sb, (float)(startXNegative - nSize.Width / 2f), endY - nSize.Height);
}
}
//if (i != startXNegative)
startXNegative -= micronPixels;
PaintXDivideNegativeAxis(g, pen, font, gp, count, startXNegative, startXNegative + micronPixels, startY, endY);
count++;
font.Dispose();
}
g.DrawLine(pen, 0, pictureBox.Height / 2, pictureBox.Width, pictureBox.Height / 2);
}
