我只是做了一些简单的测试...有疑问给我发消息把.
另加一个检测GIF文件是否被损坏的方法:
转载着修改自博客:
http://www.cnblogs.com/jxsoft/archive/2011/06/22/2087435.html
使用方法
//获取选择的图形 并且保存出来
- private void button2_Click(object sender, EventArgs e)
- {
- IListMemoryStream> _List = gifRichTextBox1.LoadSelectFile();
-
- for (int i = 0; i != _List.Count; i++)
- {
- File.WriteAllBytes(@"C:\Temp\A" + i.ToString() + ".gif", _List[0].ToArray());
- }
- }
-
- //添加一个GIF图形
- private void button3_Click(object sender, EventArgs e)
- {
- gifRichTextBox1.AddFile(@"C:\Temp\0.gif");
- }
-
- //获取当前的RTF文字 你可以直接保存这个到数据库 或则通过SOCKET发送出去.
- string _Text = "";
- private void button1_Click(object sender, EventArgs e)
- {
- _Text = gifRichTextBox1.Rtf;
-
-
- }
-
- //重新显示RTF内容
-
- private void button4_Click(object sender, EventArgs e)
- {
- gifRichTextBox1.Rtf = _Text;
- }
-
- 如果没有这个类..保存出的RTF数据..在其他RTF浏览的时候可能是个白色的矩形..
-
- 下面是全部的类
-
- using System;
- using System.Collections.Generic;
- using System.Text;
- using System.IO;
- using System.Windows.Forms;
- using System.Drawing;
-
- namespace Zgke.WindowFrom.Window.Controls.UserControls
- {
- ///
- /// RichTextBox支持 GIF图形
- /// zgke@sina.com
- /// qq:116149
- ///
- public class GifRichTextBox : RichTextBox
- {
- public GifRichTextBox()
- {
-
- }
-
- ///
- /// 重绘
- ///
- ///
- protected override void WndProc(ref Message m)
- {
- if (m.Msg == 0xF)
- {
- foreach (Control _SubControl in base.Controls)
- {
- _SubControl.Tag = "1";
- }
-
- GetRichTextObjRectangle();
-
- for (int i = 0; i != base.Controls.Count; i++)
- {
- if (base.Controls[i].Tag.ToString() == "1")
- {
- base.Controls.RemoveAt(i);
- i--;
- }
- }
- }
- base.WndProc(ref m);
- }
-
- ///
- /// 添加一个文件资源到RTF数据
- ///
- /// 文件路径
- public void AddFile(string p_FileFullPath)
- {
- byte[] _FileBytes = File.ReadAllBytes(p_FileFullPath);
- Image _Image = Image.FromStream(new MemoryStream(_FileBytes));
- string _Guid = BitConverter.ToString(Guid.NewGuid().ToByteArray()).Replace("-", "");
- StringBuilder _RtfText = new StringBuilder(@"{\rtf1\ansi\ansicpg936\deff0\deflang1033\deflangfe2052{\fonttbl{\f0\fnil\fcharset134 \'cb\'ce\'cc\'e5;}}\uc1\pard\lang2052\f0\fs18{\object\objemb{\*\objclass Paint.Picture}");
- int _Width = _Image.Width * 15;
- int _Height = _Image.Height * 15;
- _RtfText.Append(@"\objw" + _Width.ToString() + @"\objh" + _Height.ToString());
- _RtfText.AppendLine(@"{\*\objdata");
- _RtfText.AppendLine(@"010500000200000007000000504272757368000000000000000000" + BitConverter.ToString(BitConverter.GetBytes(_FileBytes.Length + 20)).Replace("-", ""));
- _RtfText.Append("7A676B65" + _Guid); //标记
- _RtfText.AppendLine(BitConverter.ToString(_FileBytes).Replace("-", ""));
- _RtfText.AppendLine(@"0105000000000000}{\result{\pict\wmetafile0}}}}");
- base.SelectedRtf = _RtfText.ToString();
- }
-
- ///
- /// 获取选择的文件
- ///
- /// 文件列表
- public IListMemoryStream> LoadSelectFile()
- {
- IListMemoryStream> _FileList = new ListMemoryStream>();
- int _Index = base.SelectedRtf.IndexOf(@"{\*\objdata");
- if (_Index == -1) return _FileList;
-
- while (_Index != -1)
- {
- MemoryStream _File = new MemoryStream();
- _Index += 80;
- string _LengthText = base.SelectedRtf.Substring(_Index, 8);
-
- int _Length = BitConverter.ToInt32(new byte[] { Convert.ToByte(_LengthText.Substring(0, 2), 16), Convert.ToByte(_LengthText.Substring(2, 2), 16), Convert.ToByte(_LengthText.Substring(4, 2), 16), Convert.ToByte(_LengthText.Substring(6, 2), 16) }, 0);
- _Index += 10;
-
- string _Head = base.SelectedRtf.Substring(_Index, 8);
- if (_Head.ToUpper() == "7A676B65")
- {
- _Index += 40;
- _Length -= 20;
- int _EndIndex = base.SelectedRtf.IndexOf("01050000", _Index);
- int _ReadIndex = 0;
- _FileList.Add(LoadMemoryStream(base.SelectedRtf.Substring(_Index, _EndIndex - _Index), ref _ReadIndex, _Length));
- _Index = _EndIndex;
- }
- _Index = base.SelectedRtf.IndexOf(@"{\*\objdata", _Index);
- }
- return _FileList;
- }
-
- ///
- /// 获取图形或则改动PictureBox的位置
- ///
- ///
- private void PointFile(string p_Rtf, Point p_StarPoint, int p_Width, int p_Height)
- {
- int _Index = p_Rtf.IndexOf(@"{\*\objdata");
- if (_Index == -1) return;
- _Index += 80;
- string _LengthText = p_Rtf.Substring(_Index, 8);
-
- int _Length = BitConverter.ToInt32(new byte[] { Convert.ToByte(_LengthText.Substring(0, 2), 16), Convert.ToByte(_LengthText.Substring(2, 2), 16), Convert.ToByte(_LengthText.Substring(4, 2), 16), Convert.ToByte(_LengthText.Substring(6, 2), 16) }, 0);
- _Index += 10;
-
- string _Head = p_Rtf.Substring(_Index, 8);
- if (_Head.ToUpper() != "7A676B65") return; //如果不是标记出来的 就不生成PictureBox
- _Index += 8;
-
- string _Guid = p_Rtf.Substring(_Index, 32);
-
- Control _Controls = base.Controls[_Guid];
- if (_Controls == null)
- {
- PictureBox _PictureBox = new PictureBox();
- _PictureBox.Name = _Guid;
- _PictureBox.Tag = "0";
- _PictureBox.Location = p_StarPoint;
- _PictureBox.Size = new Size(p_Width, p_Height);
-
- _Index += 32;
- _Length -= 20;
-
- _PictureBox.Image = Image.FromStream(LoadMemoryStream(p_Rtf, ref _Index,_Length));
-
- base.Controls.Add(_PictureBox);
- }
- else
- {
- _Controls.Location = p_StarPoint;
- _Controls.Size = new Size(p_Width, p_Height);
- _Controls.Tag = "0";
- }
- }
-
- ///
- /// 根据RTF保存的内容获取内存流
- ///
- /// RTF
- /// 开始位置
- /// 读取数量
- /// 内存流
- private MemoryStream LoadMemoryStream(string p_Text,ref int p_Index,int p_Count)
- {
- MemoryStream _File =new MemoryStream();
- char[] _Text = p_Text.ToCharArray();
- for (int i = 0; i != p_Count; i++)
- {
- if (_Text[p_Index] == '\r' && _Text[p_Index + 1] == '\n')
- {
- i--;
- }
- else
- {
- _File.WriteByte(Convert.ToByte(_Text[p_Index].ToString() + _Text[p_Index + 1].ToString(), 16));
- }
- p_Index += 2;
- }
- return _File;
- }
-
- ///
- /// 获取RICHTEXTBOX所有图形的位置
- ///
- /// RICHTEXTBOX
- /// 位置信息
- private void GetRichTextObjRectangle()
- {
- RichTextBox _RichText = new RichTextBox();
- _RichText.Rtf = base.Rtf;
- int _Count = base.Text.Length;
-
- for (int i = 0; i != _Count; i++)
- {
- if (base.Text[i] == ' ')
- {
- _RichText.Select(i, 1);
-
- if (_RichText.SelectionType.ToString() == "Object")
- {
- Point _StarPoint = base.GetPositionFromCharIndex(i);
-
- System.Text.RegularExpressions.Regex _RegexWidth = new System.Text.RegularExpressions.Regex(@"(?);
- System.Text.RegularExpressions.Regex _RegexHeight = new System.Text.RegularExpressions.Regex(@"(?);
-
- int _Width = 0;
- int _Height = 0;
-
- if (int.TryParse(_RegexWidth.Match(_RichText.SelectedRtf).Value, out _Width) && int.TryParse(_RegexHeight.Match(_RichText.SelectedRtf).Value, out _Height))
- {
- _Width = _Width / 15;
- _Height = _Height / 15;
- PointFile(_RichText.SelectedRtf, _StarPoint, _Width, _Height);
- }
- }
- }
- }
- _RichText.Dispose();
- }
- }
- }
另加一个检测GIF文件是否被损坏的方法:
- class Utility
- {
-
- //Bonus. A simple check on the GIF files because some may contain "bad" data and crash the program.
- public static bool IsImageCorrupted(Image img)
- {
- bool itis = false;
-
- try
- {
- if (!ImageAnimator.CanAnimate(img))
- {
- return itis;
- }
- int frames = img.GetFrameCount(System.Drawing.Imaging.FrameDimension.Time);
- if (frames = 1)
- {
- return itis;
- }
- byte[] times = img.GetPropertyItem(0x5100).Value;
- int frame = 0;
- for (; ; )
- {
- int dur = BitConverter.ToInt32(times, 4 * frame);
- if (++frame >= frames) break;
- img.SelectActiveFrame(System.Drawing.Imaging.FrameDimension.Time, frame);
- }
-
- }
- catch (Exception ex)
- {
- throw ex;
- }
-
- return itis;
- }
- }
转载着修改自博客:
http://www.cnblogs.com/jxsoft/archive/2011/06/22/2087435.html