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| using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;
using System.Text;
using System.Collections;
using System.IO;
using System.Reflection;
namespace NIS_2008
{
public class SignatureControl : Control
{
#region Local Variables
private ArrayList Points = new ArrayList();
private Bitmap BackGroundImage;
private Graphics GraphicsHandle;
private Pen SignaturePen = new Pen(Color.Black);
private Point LastMouseCoordinates = new Point(0,0);
private bool CaptureMouseCoordinates = false;
private string AppPath="";
private string ImageFileName="";
private string Delimiter=",";
#endregion
#region Line To Draw
private struct LineToDraw
{
public int StartX;
public int StartY;
public int EndX;
public int EndY;
}
#endregion
#region Constructor
public SignatureControl(string ApplicationPath,string BaseImageFileName)
{
AppPath = ApplicationPath;
ImageFileName = BaseImageFileName;
}
#endregion
#region Constructor
public SignatureControl()
{
}
#endregion
#region On Paint
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Write2File(BackGroundImage == null, "\\My Documents\\PDA_LOG.log");
//LoadBackgroundImageIfInvalid();
//LoadBackgroundImage();
e.Graphics.DrawImage(BackGroundImage, 0, 0);
}
#endregion
#region On Paint Background
protected override void OnPaintBackground(PaintEventArgs e)
{
}
#endregion
#region On Mouse Down
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
if (CaptureMouseCoordinates) { return; }
CaptureMouseCoordinates = true;
LastMouseCoordinates.X = e.X;
LastMouseCoordinates.Y = e.Y;
}
#endregion
#region On Mouse Up
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
CaptureMouseCoordinates = false;
}
#endregion
#region On Mouse Move
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (!CaptureMouseCoordinates) { return; }
LineToDraw l = new LineToDraw();
l.StartX = LastMouseCoordinates.X;
l.StartY = LastMouseCoordinates.Y;
l.EndX = e.X;
l.EndY = e.Y;
Points.Add(l);
GraphicsHandle.DrawLine(SignaturePen, l.StartX, l.StartY, l.EndX,l.EndY);
LastMouseCoordinates.X = l.EndX;
LastMouseCoordinates.Y = l.EndY;
Invalidate();
}
#endregion
#region Draw Signature
public void DrawSignature()
{
LineToDraw l;
try
{
if (Points.Count < 1) { return; }
for(int i=0;i<Points.Count;i++)
{
l = (LineToDraw)Points[i];
GraphicsHandle.DrawLine(SignaturePen, l.StartX, l.StartY, l.EndX,l.EndY);
}
Invalidate();
}
catch (Exception) { throw; }
}
#endregion
#region Save
public void Save(string FileName)
{
LineToDraw l;
try
{
if (Points.Count < 1) { return; }
StreamWriter sw = new StreamWriter(FileName,false);
for(int i=0;i<Points.Count;i++)
{
l = (LineToDraw)Points[i];
sw.Write(l.StartX.ToString() + Delimiter);
sw.Write(l.StartY.ToString() + Delimiter);
sw.Write(l.EndX.ToString() + Delimiter);
sw.WriteLine(l.EndY.ToString());
}
sw.Close();
}
catch (Exception) { throw; }
}
#endregion
#region Load
public void Load(string FileName)
{
LineToDraw l;
try
{
this.Clear(true);
StreamReader sr = new StreamReader(FileName);
string line;
while ((line = sr.ReadLine()) != null)
{
l = new LineToDraw();
string[] linesplit = line.Split(Delimiter.ToCharArray());
l.StartX = int.Parse(linesplit[0].ToString());
l.StartY = int.Parse(linesplit[1].ToString());
l.EndX = int.Parse(linesplit[2].ToString());
l.EndY = int.Parse(linesplit[3].ToString());
Points.Add(l);
}
sr.Close();
}
catch (Exception) { throw; }
}
#endregion
#region Clear
public void Clear(bool ClearCapturedLines)
{
try
{
LoadBackgroundImage();
Invalidate();
if (ClearCapturedLines == false) { return; }
Points.Clear();
}
catch (Exception) { throw; }
}
#endregion
#region Load Background Image If Invalid
private void LoadBackgroundImageIfInvalid()
{
Write2File("Starting LoadBackgroundImageIfInvalid", "\\My Documents\\PDA_LOG.log");
try
{
Write2File(BackGroundImage == null, "\\My Documents\\PDA_LOG.log");
/*Write2File("BackGroundImage.Width: " + BackGroundImage.Width + "this.width: "+ this.Width, "\\My Documents\\PDA_LOG.log");
Write2File("BackGroundImage.Height: " + BackGroundImage.Height + "this.Height: " + this.Height, "\\My Documents\\PDA_LOG.log");*/
if (BackGroundImage == null || BackGroundImage.Width != this.Width || BackGroundImage.Height != this.Height)
{
LoadBackgroundImage();
}
}
catch (Exception ex) { MessageBox.Show(ex.StackTrace); }
}
#endregion
#region Load Background Images
private void LoadBackgroundImage()
{
Write2File("Starting LoadBackgroundImage", "\\My Documents\\PDA_LOG.log");
try
{
Write2File("Background image path: " + Path.Combine(AppPath, ImageFileName), "\\My Documents\\PDA_LOG.log");
Write2File(File.Exists(Path.Combine(AppPath, ImageFileName)), "\\My Documents\\PDA_LOG.log");
BackGroundImage = new Bitmap(Path.Combine(AppPath,ImageFileName));
GraphicsHandle = Graphics.FromImage(BackGroundImage);
}
catch (Exception ex) { MessageBox.Show(ex.StackTrace); }
Write2File("Stopping LoadBackgroundImage", "\\My Documents\\PDA_LOG.log");
}
#endregion
private void Write2File(string msg, string filePath)
{
try
{
System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Append);
System.IO.StreamWriter sw = new System.IO.StreamWriter(fs);
sw.WriteLine(msg);
sw.Flush();
sw.Close();
fs.Close();
}
catch (IOException ioe)
{
MessageBox.Show(ioe.StackTrace);
Write2File(ioe.StackTrace, "\\My Documents\\PDA_LOG.log");
}
}
private void Write2File(Boolean msg, string filePath)
{
try
{
System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Append);
System.IO.StreamWriter sw = new System.IO.StreamWriter(fs);
sw.WriteLine(msg);
sw.Flush();
sw.Close();
fs.Close();
}
catch (IOException ioe)
{
MessageBox.Show(ioe.StackTrace);
Write2File(ioe.StackTrace, "\\My Documents\\PDA_LOG.log");
}
}
}
} |