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求html文本编辑控件

楼主xiandaliu（仙达流，菜鸟先飞）2005-01-10 09:36:49 在 .NET技术 / C# 提问

不需要很复杂，只要关键字着色就好，速度要快，我自己写了一个速度很慢，由于使用的是richtextbox，用这个控件的selectioncolor属性改变关键字的颜色，其他都很快，只有执行richtextbox的select()方法和使用selectioncolor属性着色时候非常非常的慢，能解决这个问题也可以，^_^
问题点数：100、回复次数：13Top

1 楼xiandaliu（仙达流，菜鸟先飞）回复于 2005-01-10 09:42:31 得分 0

附代码如下：
类：拆分字符串
public class Html
{
public struct ColorText
{
public Color TextColor;
public int Index;
public int Length;
public ColorText( Color textcolor,int index,int length )
{
TextColor = Color.Black; Index = -1; Length = -1;
TextColor = textcolor;
Index = index;
Length = length;
}
}

public static ArrayList Tag()
{
ArrayList arr = new ArrayList();
System.IO.FileStream fs = new System.IO.FileStream("d:\\WORDFILE.TXT", System.IO.FileMode.Open, System.IO.FileAccess.Read);
System.IO.StreamReader srm = new System.IO.StreamReader(fs);
string TheFile = srm.ReadToEnd();
srm.Close();
fs.Close();
System.IO.StringReader sr = new System.IO.StringReader(TheFile);
string nextLine;

nextLine = sr.ReadLine();
nextLine = nextLine.Trim().ToLower();
while (nextLine != null)
{
nextLine = nextLine.Trim().ToLower();
arr.AddRange(nextLine.Split(' '));
nextLine = sr.ReadLine();
}
System.IO.StreamWriter sw = new System.IO.StreamWriter("d:\\test.txt");
foreach (string st in arr)
sw.WriteLine(st);
sw.Flush();
sw.Close();
return arr;
}
static ArrayList tag;
public static ArrayList DrawText( string s )
{
ArrayList wr = new ArrayList();
System.Text.RegularExpressions.Regex r;
System.Text.RegularExpressions.Match m;
r = new System.Text.RegularExpressions.Regex(@"<\w+>|<\w+|"+"\""+"\\w+"+"\""+@"|</\w+>|[^A-Za-z0-9_<> \f\t\v]|\w+", System.Text.RegularExpressions.RegexOptions.IgnoreCase | System.Text.RegularExpressions.RegexOptions.Compiled);
if (tag == null)
{
tag = Tag();
tag.Sort();
}
int count = 0;
for (m = r.Match(s); m.Success; m = m.NextMatch())
{
if (tag.BinarySearch(m.Value.ToLower()) >= 0)
wr.Add(new ColorText(Color.DarkRed, m.Index, m.Length));
else
wr.Add(new ColorText(Color.Black, m.Index, m.Length));

count++;
}
return wr;
}
}

RichTextBox CustomControl
public class RichTextBox : System.Windows.Forms.RichTextBox
{
public RichTextBox()
{
}

bool _Paint = true;
string _texttype = "html";
public string TextType
{
get { return _texttype; }
set { _texttype = value; }
}

protected override void WndProc(ref System.Windows.Forms.Message m)
{
if (m.Msg == 0x00f)
{
if (_Paint)
base.WndProc(ref m);
else
m.Result = IntPtr.Zero;
}
else
base.WndProc(ref m);
}

protected override void OnKeyPress(System.Windows.Forms.KeyPressEventArgs e)
{
}

protected override void OnKeyDown(System.Windows.Forms.KeyEventArgs e)
{
}

protected override void OnKeyUp(System.Windows.Forms.KeyEventArgs e)
{
}

public void ChangeColor_Line()
{
_Paint = false;
int CurrentSelectionStart = SelectionStart;
int CurrentSelectionLength = SelectionLength;

int pos = CurrentSelectionStart;
while ((pos > 0) && (Text[pos - 1] != '\n'))
pos--;

int pos2 = CurrentSelectionStart;
while ((pos2 < Text.Length) &&
(Text[pos2] != '\n'))
pos2++;
string s = Text.Substring(pos, pos2 - pos);

Select(pos, pos2);
SelectionColor = System.Drawing.Color.Black;
Select(pos, 0);
System.Collections.ArrayList arr = Html.DrawText(s);
if (arr != null)
for (int i = 0; i < arr.Count; i++)
{
Select(((Html.ColorText)arr[i]).Index + pos, ((Html.ColorText)arr[i]).Length);
SelectionColor = ((Html.ColorText)arr[i]).TextColor;
}
if (CurrentSelectionStart >= 0)
Select(CurrentSelectionStart, CurrentSelectionLength);
_Paint = true;
}

public void ChangeColor_All()
{
_Paint = false;
int CurrentSelectionStart = SelectionStart;
int CurrentSelectionLength = SelectionLength;
SelectAll();
SelectionColor = System.Drawing.Color.Black;
Select(0, 0);
System.Collections.ArrayList arr = Html.DrawText(Text);
if (arr != null)
{
Html.ColorText[] c = new Html.ColorText[arr.Count];
arr.CopyTo(c);
for (int i = 0; i < c.Length; i++)
{
Select(c[i].Index, c[i].Length);
SelectionColor = c[i].TextColor;
}
}
if (CurrentSelectionStart >= 0)
Select(CurrentSelectionStart, CurrentSelectionLength);
_Paint = true;
}

protected override void OnTextChanged(EventArgs e)
{
ChangeColor_Line();
base.OnTextChanged(e);
}
}

因为是使用的2005写的，不知道有没有什么关系，应该是没有，^_^Top

2 楼xiandaliu（仙达流，菜鸟先飞）回复于 2005-01-10 09:44:59 得分 0

打开文件使用change_all方法非常的慢Top

3 楼xiandaliu（仙达流，菜鸟先飞）回复于 2005-01-11 09:04:49 得分 0

顶一个Top

4 楼liulxmooo（娃娃）回复于 2005-01-11 09:10:21 得分 0

upTop

5 楼terryshi（terryshi）回复于 2005-01-11 09:26:57 得分 0

freetextbox~~免费Top

6 楼RockyZhang（Rocky）回复于 2005-01-11 09:28:31 得分 45

微软提供的HTML编辑控件．试试这个，还不错．
http://windowsforms.net/articles/htmleditor.aspxTop

7 楼owg（OMG）回复于 2005-01-11 09:55:33 得分 10

http://www.evget.com/view/viewCategoryProduct.asp?language=&mode=&productTypeId=&categoryId=9Top

8 楼mooddecode1980（心情解码）回复于 2005-01-11 09:59:02 得分 0

up

:)Top

9 楼joelbh（ILoveYou）回复于 2005-01-11 10:47:00 得分 0

freetextbox不错啊Top

10 楼LoveCherry（论成败，人生豪迈；大不了，重头再来！^_^）回复于 2005-01-11 10:51:09 得分 0

upTop

11 楼zhzuo（秋枫）回复于 2005-01-11 12:40:53 得分 45

http://www.windowsforms.net/ControlGallery/default.aspx?Category=13&tabindex=10Top

12 楼3gold（新丁）回复于 2005-01-11 13:03:57 得分 0

FCKedit推荐Top

13 楼xiandaliu（仙达流，菜鸟先飞）回复于 2005-01-11 18:47:49 得分 0

对不起，我没说清楚，是windows的控件Top