using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using System.Collections.Generic;
using System.Collections.Specialized;
namespace internet_magic.ChartControl
{
/// <summary>
/// Summary description for UserControl1.
/// </summary>
public class ChartControlForm : System.Windows.Forms.UserControl
{
/// <summary>
/// Required designer variable.
/// </summary>
/* Public Properties */
public float Maximum
{
get
{
return m_Maximum;
}
}
/// <summary>
/// Required designer variable.
/// </summary>
public float Minimum
{
get
{
return m_Minimum;
}
}
/* Public Vars */
/// <summary>
/// Public Vars
/// </summary>
public int LineWidth;
/// <summary>
/// Per One Gridbox
/// </summary>
public int PixelsPer1; //Per One Gridbox
/// <summary>
/// Public Vars
/// </summary>
public int LineDifference;
/// <summary>
/// in order to make values larger if you need to improve scale
/// </summary>
public float ValueMultiplier; //in order to make values larger if you need to improve scale
/// <summary>
/// Public Vars
/// </summary>
public Color AboveColor, UnderColor, GridColor, ChartBackColor, AxesColor;
/// <summary>
/// Public Vars
/// </summary>
public ChartControlOpenType OpenType;
/* Private Vars */
private System.Windows.Forms.Panel ChartPanel;
private System.ComponentModel.Container components = null;
private Graphics g;
private float[] Values;
private float m_Maximum, m_Minimum;
private int CurrentYGridStart;
private int CurrentNumberOfValues;
private Size CurrentSize = new Size(0, 0);
/// <summary>
/// Initialize internet_magic.internet_magic.ChartControl
/// </summary>
public ChartControlForm()
{
InitializeComponent();
OpenType = ChartControlOpenType.Bar; //Default Value
LoadDefaultValues();
InitChart();
}
/// <summary>
/// This call is required by the Windows.Forms Form Designer.
/// </summary>
public ChartControlForm(ChartControlOpenType NOpenType)
{
// This call is required by the Windows.Forms Form Designer.
InitializeComponent();
OpenType = NOpenType;
LoadDefaultValues();
InitChart();
}
/// <summary>
/// Loading Default Values
/// </summary>
private void LoadDefaultValues()
{
/* Loading Default Values */
g = ChartPanel.CreateGraphics();
PixelsPer1 = 10;
ChartBackColor = Color.Black;
GridColor = Color.White;
AboveColor = Color.Chartreuse;
UnderColor = Color.Red;
AxesColor = Color.White;
CurrentYGridStart = 0;
ValueMultiplier = 1;
m_Maximum = ChartPanel.Size.Height;
m_Minimum = 0;// (-1) * (ChartPanel.Size.Height / 2);
LineDifference = 1;
/* Initializing Value Array (Size is width since every Line width is 1 pixel) */
if (OpenType == ChartControlOpenType.Bar) //WIDTH because there's no space between lines
Values = new float[ChartPanel.Size.Width];
else
Values = new float[ChartPanel.Size.Width / 2]; //WIDTH/2 because there's a 2 pixel space between dots
for (int i = 0; i < Values.Length; i++)
Values[i] = 0;
CurrentNumberOfValues = 0;
}
/// <summary>
/// Refresh Control
/// </summary>
public void RefreshControl()
{
PostInitChart();
DrawChart(0);
}
/// <summary>
/// Adding value at end of array to check graph limit.
/// </summary>
public void AddValue(float val, int val1)
{
/* Adding value at end of array */
if ((Minimum != 0) && (Maximum != 0)) /* Prevent first draw errors */
if ((val * ValueMultiplier > Maximum/2) || (val * ValueMultiplier > Maximum/2))
return; //Value is too high or too low for display.
for (int i = 0; i < Values.Length - 1; i++)
Values[i] = Values[i + 1];
Values[Values.Length - 1] = val * ValueMultiplier;
if (CurrentNumberOfValues < Values.Length)
CurrentNumberOfValues++;
if (CurrentYGridStart < PixelsPer1 * LineDifference - 1)
{
if (OpenType == ChartControlOpenType.Bar)
CurrentYGridStart++;
else
CurrentYGridStart += 2;
}
else
{
CurrentYGridStart = 0;
}
/* Redrawing chart */
DrawChart(val1);
}
/// <summary>
/// Load value From Values
/// </summary>
public void LoadFromValues(ArrayList NewValues)
{
for (int i = 0; i < NewValues.Count; i++)
Values[Values.Length - i - 1] = ValueMultiplier * (float)Convert.ToDouble(NewValues[i]);
CurrentNumberOfValues = NewValues.Count;
PostInitChart();
}
/// <summary>
/// Load value From Values
/// </summary>
public void LoadFromValues(float[] NewValues)
{
for (int i = 0; i < NewValues.Length; i++)
Values[Values.Length - i - 1] = NewValues[i] * ValueMultiplier;
CurrentNumberOfValues = NewValues.Length;
PostInitChart();
}
/// <summary>
/// First Time Chart Init
/// </summary>
public void InitChart()
{
/* First Time Chart Init */
CurrentYGridStart = 0;
PostInitChart();
}
/// <summary>
/// ompares 2 floats
/// </summary>
int IntCmp(float num1, float num2)
{
/* Compares 2 floats,
* if num1 > 0 and num2 < 0, returns 1,
* \if both are > 0 or both are < 0 returns 0,
* if num2 > 0 and num1 < 0 returns -1
*/
if ((num1 >= 0) && (num2 >= 0))
return 0;
if ((num1 < 0) && (num2 < 0))
return 0;
if ((num1 >= 0) && (num2 < 0))
return 1;
if ((num1 < 0) && (num2 >= 0))
return -1;
return 0;
}
/// <summary>
/// Change Inner Chart Control Size
/// </summary>
public void ChangeInnerChartControlSize(Size NewSize)
{
this.Size = NewSize;
if (ChartPanel != null)
PostInitChart();
}
/// <summary>
/// Refresh of Component, Clear and redraw of grid, which also redraws values
/// </summary>
public void PostInitChart()
{
/* Refresh of Component, Clear and redraw of grid, which also redraws values */
if ((ChartPanel.Height != 0) && (ChartPanel.Width != 0)) //To avoid drawing a 0 width or 0 size rectangle
{
g.Clear(ChartBackColor);
DrawGrid();
}
}
/// <summary>
/// Drawing Axis,X and Y Grid
/// </summary>
private void DrawGrid()
{
/* Drawing X Grid */
for (int i = (ChartPanel.Size.Height / 2) + PixelsPer1 * LineDifference; i < ChartPanel.Size.Height; i += PixelsPer1 * LineDifference)
g.DrawLine(new Pen(GridColor), 0, i, ChartPanel.Size.Width, i);
for (int i = (ChartPanel.Size.Height / 2) - PixelsPer1 * LineDifference; i > 0; i -= PixelsPer1 * LineDifference)
g.DrawLine(new Pen(GridColor), 0, i, ChartPanel.Size.Width, i);
/* Drawing Y Grid */
for (int i = CurrentYGridStart; i < ChartPanel.Size.Width; i += PixelsPer1 * LineDifference)
g.DrawLine(new Pen(GridColor), i, 0, i, ChartPanel.Size.Height);
/* Drawing Axes */
g.DrawLine(new Pen(AxesColor), 0, (int)(ChartPanel.Size.Height / 2), ChartPanel.Size.Width, (int)(ChartPanel.Size.Height / 2));
}
/// <summary>
/// Draw Chart
/// </summary>
private void DrawChart(int i1)
{
PostInitChart(); //Refresh of the chart
Pen AbovePen = new Pen(AboveColor);
Pen UnderPen = new Pen(UnderColor);
if (i1==1)
AbovePen = new Pen(UnderColor);
if (OpenType == ChartControlOpenType.Bar) //Drawing bar
{
for (int i = Values.Length - CurrentNumberOfValues; i < Values.Length; i++)
{
if (Values[i] > 0) // More than 0, AboveColor is used
{
g.DrawLine(AbovePen, Values.Length - i - 1, (int)(ChartPanel.Size.Height) - 1, Values.Length - i - 1, (int)(ChartPanel.Size.Height) - Values[i]);
}
if (Values[i] < 0) // Less than 0, UnderColor is used
{
g.DrawLine(UnderPen, Values.Length - i - 1, (int)(ChartPanel.Size.Height / 2) + 1, Values.Length - i - 1, (int)(ChartPanel.Size.Height / 2) - Values[i]);
}
}
}
else if (OpenType == ChartControlOpenType.Graph) //Drawing Graph
{
for (int i = Values.Length - CurrentNumberOfValues; i < Values.Length; i++)
{
if (Values[i] >= 0) // More than 0, AboveColor is used
{
if (IntCmp(Values[i], Values[i - 1]) > 0) //if it goes bellow 0
{
g.DrawLine(UnderPen, (Values.Length - i) * 2, (int)(ChartPanel.Size.Height / 2) - Values[i - 1], (Values.Length - i) * 2 - 1, (int)(ChartPanel.Size.Height / 2));
g.DrawLine(AbovePen, (Values.Length - i) * 2 - 1, (int)(ChartPanel.Size.Height / 2), (Values.Length - i - 1) * 2, (int)(ChartPanel.Size.Height / 2) - Values[i]);
}
else //if it stays above 0
{
g.DrawLine(AbovePen, (Values.Length - i) * 2, (int)(ChartPanel.Size.Height / 2) - Values[i - 1], (Values.Length - i - 1) * 2, (int)(ChartPanel.Size.Height / 2) - Values[i]);
}
}
if (Values[i] < 0) // Less than 0, UnderColor is used
{
if (IntCmp(Values[i], Values[i - 1]) < 0) //if it goes above 0
{
g.DrawLine(AbovePen, (Values.Length - i) * 2, (int)(ChartPanel.Size.Height / 2) - Values[i - 1], (Values.Length - i) * 2 - 1, (int)(ChartPanel.Size.Height / 2));
g.DrawLine(UnderPen, (Values.Length - i) * 2 - 1, (int)(ChartPanel.Size.Height / 2), (Values.Length - i - 1) * 2, (int)(ChartPanel.Size.Height / 2) - Values[i]);
}
else //if it stays bellow 0
{
g.DrawLine(UnderPen, (Values.Length - i) * 2, (int)(ChartPanel.Size.Height / 2) - Values[i - 1], (Values.Length - i - 1) * 2, (int)(ChartPanel.Size.Height / 2) - Values[i]);
}
}
}
}
//Dont forget to dispose variables...
UnderPen.Dispose();
AbovePen.Dispose();
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (components != null)
components.Dispose();
}
base.Dispose(disposing);
}
/// <summary>
/// Recalculate graph Size
/// </summary>
private void RecalculateSize()
{
if ((CurrentSize.Height != 0) && (CurrentSize.Width != 0)) //avoid divide by 0
{
m_Maximum = ChartPanel.Size.Height;
m_Minimum = 0;// (-1) * (ChartPanel.Size.Height / 2);
float SizeChange = ((float)Size.Height / (float)CurrentSize.Height);
if (Size.Height != 0)
ValueMultiplier *= SizeChange;
int i, j;
float[] NewValues = new float[Size.Width];
for (i = Values.Length - 1, j = NewValues.Length - 1; ((i >= 0) && (j >= 0)); i--, j--)
{
if (SizeChange != 0)
NewValues[j] = Values[i] * SizeChange;
}
Values = NewValues;
g.Dispose();
g = ChartPanel.CreateGraphics();
DrawChart(0);
}
}
#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.ChartPanel = new System.Windows.Forms.Panel();
this.SuspendLayout();
//
// ChartPanel
//
this.ChartPanel.Dock = System.Windows.Forms.DockStyle.Fill;
this.ChartPanel.Location = new System.Drawing.Point(0, 0);
this.ChartPanel.Name = "ChartPanel";
this.ChartPanel.Size = new System.Drawing.Size(192, 88);
this.ChartPanel.TabIndex = 0;
this.ChartPanel.Paint += new System.Windows.Forms.PaintEventHandler(this.ChartPanel_Paint);
//
// UserControl1
//
this.Controls.Add(this.ChartPanel);
this.Name = "UserControl1";
this.Size = new System.Drawing.Size(192, 88);
this.Resize += new System.EventHandler(this.UserControl1_Resize);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// Reload values if chart resizes
/// </summary>
protected override void OnResize(EventArgs e)
{
base.OnResize(e);
if (ChartPanel != null)
{
if ((Size.Height == 0) || (Size.Width == 0))
return;
if ((CurrentSize.Height == 0) && (CurrentSize.Width == 0))
{
CurrentSize = Size;
return;
}
RecalculateSize();
CurrentSize = Size;
}
}
private void UserControl1_Resize(object sender, EventArgs e)
{
}
private void ChartPanel_Paint(object sender, PaintEventArgs e)
{
if (ChartPanel != null)
OnResize(new EventArgs());
}
}
/// <summary>
/// Chart Control OpenType values
/// </summary>
public enum ChartControlOpenType
{
/// <summary>
/// if bars
/// </summary>
Bar,
/// <summary>
/// if graph
/// </summary>
Graph
};
}
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