229 lines
7.8 KiB
C#
229 lines
7.8 KiB
C#
/******************************
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* 说明：电子签名
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* 创建人：龚宇超
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* 创建日期：2018-05-16
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* 修改人：
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* 修改日期：
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* 修改备注：
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* 版本：1.0.0.0
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******************************/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using Lskj.Business.Impl;
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namespace Lskj.Control
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{
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/// <summary>
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/// 电子签名
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/// </summary>
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public partial class SignControlEx : UserControl
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{
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/// <summary>
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/// 记录直线或者曲线的对象
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/// </summary>
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private System.Drawing.Drawing2D.GraphicsPath _mousePath = new System.Drawing.Drawing2D.GraphicsPath();
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/// <summary>
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/// 画笔透明度
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/// </summary>
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private int _alpha = 100;
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/// <summary>
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/// 画笔颜色对象
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/// </summary>
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private Color _userColor = new Color();
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/// <summary>
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/// 画笔宽度
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/// </summary>
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private int _penWidth = 10;
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/// <summary>
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/// 签名的图片对象
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/// </summary>
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public Bitmap SignBitmap;
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/// <summary>
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/// 签名绘画完成
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/// </summary>
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public event EventHandler OnSignOkCallBack;
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public SignControlEx()
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{
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InitializeComponent();
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}
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/// <summary>
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/// <para>说明：设置画笔宽度</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-05-16 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
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private void textEdit1_EditValueChanged(object sender, EventArgs e)
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{
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try
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{
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int penWidth = _penWidth;
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if (Int32.TryParse(this.textEdit1.Text, out penWidth))
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penWidth = Convert.ToInt32(this.textEdit1.Text);
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this._penWidth = penWidth;
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}
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catch (Exception ex)
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{
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string Message = ErrorMessage.PromptErrorMessage(ex);
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MessageUtil.Show(Message,ex.Message);
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}
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}
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/// <summary>
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/// <para>说明：鼠标按下记录</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-05-16 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
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private void pictureEdit1_MouseDown(object sender, MouseEventArgs e)
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{
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try
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{
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if (e.Button == System.Windows.Forms.MouseButtons.Left)
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{
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try
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{
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_mousePath.AddLine(e.X, e.Y, e.X, e.Y);
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}
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catch (Exception ex)
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{
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MessageUtil.Show(ex);
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}
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}
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pictureEdit1.Invalidate();
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}
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catch (Exception ex)
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{
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string Message = ErrorMessage.PromptErrorMessage(ex);
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MessageUtil.Show(Message,ex.Message);
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}
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}
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/// <summary>
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/// <para>说明：鼠标移动绘画</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-05-16 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
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private void pictureEdit1_MouseMove(object sender, MouseEventArgs e)
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{
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try
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{
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if (e.Button == System.Windows.Forms.MouseButtons.Left)
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{
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_mousePath.StartFigure();
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}
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}
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catch (Exception ex)
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{
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string Message = ErrorMessage.PromptErrorMessage(ex);
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MessageUtil.Show(Message,ex.Message);
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}
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}
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/// <summary>
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/// <para>说明：重绘显示</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-05-16 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="PaintEventArgs"/> instance containing the event data.</param>
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private void pictureEdit1_Paint(object sender, PaintEventArgs e)
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{
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try
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{
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this._userColor = System.Drawing.Color.Blue;
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this._alpha = 255;
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Pen pen = new Pen(Color.FromArgb(_alpha, _userColor), _penWidth);
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e.Graphics.DrawPath(pen, _mousePath);
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}
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catch {
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}
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}
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/// <summary>
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/// <para>说明：确定</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-05-16 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
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private void btnOk_Click (object sender, EventArgs e)
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{
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try {
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this.SignBitmap = new Bitmap(pictureEdit1.Width, pictureEdit1.Height);
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this.pictureEdit1.DrawToBitmap(SignBitmap, new Rectangle(0, 0, SignBitmap.Width, SignBitmap.Height));
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if (this.OnSignOkCallBack != null)
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this.OnSignOkCallBack(SignBitmap, e);
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}
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catch (Exception ex)
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{
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string Message = ErrorMessage.PromptErrorMessage(ex);
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MessageUtil.Show(Message,ex.Message);
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}
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}
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/// <summary>
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/// <para>说明：清空绘画</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-05-16 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
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private void btnClear_Click(object sender, EventArgs e)
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{
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try {
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using (Graphics graphics = pictureEdit1.CreateGraphics())
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{
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graphics.Clear(Color.White);
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}
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_mousePath.Reset();
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}
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catch (Exception ex)
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{
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string Message = ErrorMessage.PromptErrorMessage(ex);
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MessageUtil.Show(Message,ex.Message);
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}
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}
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}
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}
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