/// <summary>
/// search child node special keyword
/// </summary>
/// <param name="Key">special keyword</param>
/// <param name="Deeply">whether search deeplyl</param>
/// <returns>node find</returns>
public RTFNode SearchKey(string Key, bool Deeply)
{
foreach (RTFNode node in myNodes)
{
if (node.Type == RTFNodeType.Keyword ||
node.Type == RTFNodeType.ExtKeyword ||
node.Type == RTFNodeType.Control)
{
if (node.Keyword == Key)
{
return(node);
}
}
if (Deeply)
{
if (node is RTFNodeGroup)
{
RTFNodeGroup g = ( RTFNodeGroup )node;
RTFNode n = g.SearchKey(Key, true);
if (n != null)
{
return(n);
}
}
}
}
return(null);
}
/// <summary>
/// read font table
/// </summary>
/// <param name="group"></param>
private void ReadFontTable(RTFNodeGroup group)
{
myFontTable.Clear();
foreach (RTFNode node in group.Nodes)
{
if (node is RTFNodeGroup)
{
int index = -1;
string name = null;
int charset = 0;
foreach (RTFNode item in node.Nodes)
{
if (item.Keyword == "f" && item.HasParameter)
{
index = item.Parameter;
}
else if (item.Keyword == RTFConsts._fcharset)
{
charset = item.Parameter;
}
else if (item.Type == RTFNodeType.Text)
{
if (item.Keyword != null && item.Keyword.Length > 0)
{
name = item.Keyword;
break;
}
}
}
if (index >= 0 && name != null)
{
if (name.EndsWith(";"))
{
name = name.Substring(0, name.Length - 1);
}
name = name.Trim();
//System.Console.WriteLine( "Index:" + index + " Name:" + name );
RTFFont font = new RTFFont(index, name);
font.Charset = charset;
myFontTable.Add(font);
}
}
}
}
/// <summary>
/// read document information
/// </summary>
/// <param name="group"></param>
private void ReadDocumentInfo(RTFNodeGroup group)
{
myInfo.Clear();
RTFNodeList list = group.GetAllNodes(false);
foreach (RTFNode node in group.Nodes)
{
if ((node is RTFNodeGroup) == false)
{
continue;
}
if (node.Keyword == "creatim")
{
myInfo.Creatim = ReadDateTime(node);
}
else if (node.Keyword == "revtim")
{
myInfo.Revtim = ReadDateTime(node);
}
else if (node.Keyword == "printim")
{
myInfo.Printim = ReadDateTime(node);
}
else if (node.Keyword == "buptim")
{
myInfo.Buptim = ReadDateTime(node);
}
else
{
if (node.HasParameter)
{
myInfo.SetInfo(node.Keyword, node.Parameter.ToString());
}
else
{
myInfo.SetInfo(node.Keyword, node.Nodes.Text);
}
}
}
}
/// <summary>
/// read color table
/// </summary>
/// <param name="group"></param>
private void ReadColorTable(RTFNodeGroup group)
{
myColorTable.Clear();
int r = -1;
int g = -1;
int b = -1;
foreach (RTFNode node in group.Nodes)
{
if (node.Keyword == "red")
{
r = node.Parameter;
}
else if (node.Keyword == "green")
{
g = node.Parameter;
}
else if (node.Keyword == "blue")
{
b = node.Parameter;
}
if (node.Keyword == ";")
{
if (r >= 0 && g >= 0 && b >= 0)
{
System.Drawing.Color c = System.Drawing.Color.FromArgb(255, r, g, b);
myColorTable.Add(c);
r = -1;
g = -1;
b = -1;
}
}
}
if (r >= 0 && g >= 0 && b >= 0)
{
// read the last color
System.Drawing.Color c = System.Drawing.Color.FromArgb(255, r, g, b);
myColorTable.Add(c);
}
}
/// <summary>
/// load rtf
/// </summary>
/// <param name="reader">RTF text reader</param>
public void Load(RTFReader reader)
{
myNodes.Clear();
System.Collections.Stack groups = new System.Collections.Stack();
RTFNodeGroup NewGroup = null;
RTFNode NewNode = null;
while (reader.ReadToken() != null)
{
if (reader.TokenType == RTFTokenType.GroupStart)
{
// begin group
if (NewGroup == null)
{
NewGroup = this;
}
else
{
NewGroup = new RTFNodeGroup();
NewGroup.OwnerDocument = this;
}
if (NewGroup != this)
{
RTFNodeGroup g = ( RTFNodeGroup )groups.Peek();
g.AppendChild(NewGroup);
}
groups.Push(NewGroup);
}
else if (reader.TokenType == RTFTokenType.GroupEnd)
{
// end group
NewGroup = ( RTFNodeGroup )groups.Pop();
NewGroup.MergeText();
if (NewGroup.FirstNode is RTFNode)
{
switch (NewGroup.Keyword)
{
case RTFConsts._fonttbl:
// read font table
ReadFontTable(NewGroup);
break;
case RTFConsts._colortbl:
// read color table
ReadColorTable(NewGroup);
break;
case RTFConsts._info:
// read document information
ReadDocumentInfo(NewGroup);
break;
}
}
if (groups.Count > 0)
{
NewGroup = (RTFNodeGroup)groups.Peek();
}
else
{
break;
}
//NewGroup.MergeText();
}
else
{
// read content
NewNode = new RTFNode(reader.CurrentToken);
NewNode.OwnerDocument = this;
NewGroup.AppendChild(NewNode);
if (NewNode.Keyword == RTFConsts._f)
{
RTFFont font = this.FontTable[NewNode.Parameter];
if (font != null)
{
myFontChartset = font.Encoding;
}
else
{
myFontChartset = null;
}
//myFontChartset = RTFFont.GetRTFEncoding( NewNode.Parameter );
}
else if (NewNode.Keyword == RTFConsts._af)
{
RTFFont font = this.FontTable[NewNode.Parameter];
if (font != null)
{
myAssociateFontChartset = font.Encoding;
}
else
{
myAssociateFontChartset = null;
}
}
}
} // while( reader.ReadToken() != null )
while (groups.Count > 0)
{
NewGroup = ( RTFNodeGroup )groups.Pop();
NewGroup.MergeText();
}
//this.UpdateInformation();
}
