private void HandleText(RTF.RTF rtf) {
string str = rtf.EncodedText;
//todo - simplistically skips characters, should skip bytes?
if (rtf_skip_count > 0 && str.Length > 0) {
int iToRemove = Math.Min (rtf_skip_count, str.Length);
str = str.Substring (iToRemove);
rtf_skip_count-=iToRemove;
}
/*
if ((RTF.StandardCharCode)rtf.Minor != RTF.StandardCharCode.nothing) {
rtf_line.Append(rtf_text_map[(RTF.StandardCharCode)rtf.Minor]);
} else {
if ((int)rtf.Major > 31 && (int)rtf.Major < 128) {
rtf_line.Append((char)rtf.Major);
} else {
//rtf_line.Append((char)rtf.Major);
Console.Write("[Literal:0x{0:X2}]", (int)rtf.Major);
}
}
*/
if (rtf_style.rtf_visible)
rtf_line.Append (str);
}
private void FlushText(RTF.RTF rtf, bool newline) {
int length;
Font font;
length = rtf_line.Length;
if (!newline && (length == 0)) {
return;
}
if (rtf_style.rtf_rtffont == null) {
// First font in table is default
rtf_style.rtf_rtffont = System.Windows.Forms.RTF.Font.GetFont (rtf, 0);
}
font = new Font (rtf_style.rtf_rtffont.Name, rtf_style.rtf_rtffont_size, rtf_style.rtf_rtfstyle);
if (rtf_style.rtf_color == Color.Empty) {
System.Windows.Forms.RTF.Color color;
// First color in table is default
color = System.Windows.Forms.RTF.Color.GetColor (rtf, 0);
if ((color == null) || (color.Red == -1 && color.Green == -1 && color.Blue == -1)) {
rtf_style.rtf_color = ForeColor;
} else {
rtf_style.rtf_color = Color.FromArgb (color.Red, color.Green, color.Blue);
}
}
rtf_chars += rtf_line.Length;
// Try to re-use if we are told so - this usually happens when we are inserting a flow of rtf text
// with an already alive line.
if (rtf_cursor_x == 0 && !reuse_line) {
if (newline && rtf_line.ToString ().EndsWith (Environment.NewLine) == false)
rtf_line.Append (Environment.NewLine);
document.Add (rtf_cursor_y, rtf_line.ToString (), rtf_style.rtf_rtfalign, font, rtf_style.rtf_color,
newline ? LineEnding.Rich : LineEnding.Wrap);
if (rtf_style.rtf_par_line_left_indent != 0) {
Line line = document.GetLine (rtf_cursor_y);
line.indent = rtf_style.rtf_par_line_left_indent;
}
} else {
Line line;
line = document.GetLine (rtf_cursor_y);
line.indent = rtf_style.rtf_par_line_left_indent;
if (rtf_line.Length > 0) {
document.InsertString (line, rtf_cursor_x, rtf_line.ToString ());
document.FormatText (line, rtf_cursor_x + 1, line, rtf_cursor_x + 1 + length,
font, rtf_style.rtf_color, Color.Empty,
FormatSpecified.Font | FormatSpecified.Color);
}
if (newline) {
line = document.GetLine (rtf_cursor_y);
line.ending = LineEnding.Rich;
if (line.Text.EndsWith (Environment.NewLine) == false)
line.Text += Environment.NewLine;
}
reuse_line = false; // sanity assignment - in this case we have already re-used one line.
}
if (newline) {
rtf_cursor_x = 0;
rtf_cursor_y++;
} else {
rtf_cursor_x += length;
}
rtf_line.Length = 0; // Empty line
}
private void SpecialChar(RTF.RTF rtf) {
switch(rtf.Minor) {
case RTF.Minor.Page:
case RTF.Minor.Sect:
case RTF.Minor.Row:
case RTF.Minor.Line:
case RTF.Minor.Par: {
FlushText(rtf, true);
break;
}
case RTF.Minor.Cell: {
Console.Write(" ");
break;
}
case RTF.Minor.NoBrkSpace: {
Console.Write(" ");
break;
}
case RTF.Minor.Tab: {
rtf_line.Append ("\t");
// FlushText (rtf, false);
break;
}
case RTF.Minor.NoReqHyphen:
case RTF.Minor.NoBrkHyphen: {
rtf_line.Append ("-");
// FlushText (rtf, false);
break;
}
case RTF.Minor.Bullet: {
Console.WriteLine("*");
break;
}
case RTF.Minor.WidowCtrl:
break;
case RTF.Minor.EmDash: {
rtf_line.Append ("\u2014");
break;
}
case RTF.Minor.EnDash: {
rtf_line.Append ("\u2013");
break;
}
/*
case RTF.Minor.LQuote: {
Console.Write("\u2018");
break;
}
case RTF.Minor.RQuote: {
Console.Write("\u2019");
break;
}
case RTF.Minor.LDblQuote: {
Console.Write("\u201C");
break;
}
case RTF.Minor.RDblQuote: {
Console.Write("\u201D");
break;
}
*/
default: {
// Console.WriteLine ("skipped special char: {0}", rtf.Minor);
// rtf.SkipGroup();
break;
}
}
}
private void HandleControl(RTF.RTF rtf) {
switch(rtf.Major) {
case RTF.Major.Unicode: {
switch(rtf.Minor) {
case RTF.Minor.UnicodeCharBytes: {
rtf_style.rtf_skip_width = rtf.Param;
break;
}
case RTF.Minor.UnicodeChar: {
FlushText (rtf, false);
rtf_skip_count += rtf_style.rtf_skip_width;
rtf_line.Append((char)rtf.Param);
break;
}
}
break;
}
case RTF.Major.Destination: {
// Console.Write("[Got Destination control {0}]", rtf.Minor);
rtf.SkipGroup();
break;
}
case RTF.Major.PictAttr:
if (rtf.Picture != null && rtf.Picture.IsValid ()) {
Line line = document.GetLine (rtf_cursor_y);
document.InsertPicture (line, 0, rtf.Picture);
rtf_cursor_x++;
FlushText (rtf, true);
rtf.Picture = null;
}
break;
case RTF.Major.CharAttr: {
switch(rtf.Minor) {
case RTF.Minor.ForeColor: {
System.Windows.Forms.RTF.Color color;
color = System.Windows.Forms.RTF.Color.GetColor(rtf, rtf.Param);
if (color != null) {
FlushText(rtf, false);
if (color.Red == -1 && color.Green == -1 && color.Blue == -1) {
this.rtf_style.rtf_color = ForeColor;
} else {
this.rtf_style.rtf_color = Color.FromArgb(color.Red, color.Green, color.Blue);
}
FlushText (rtf, false);
}
break;
}
case RTF.Minor.FontSize: {
FlushText(rtf, false);
this.rtf_style.rtf_rtffont_size = rtf.Param / 2;
break;
}
case RTF.Minor.FontNum: {
System.Windows.Forms.RTF.Font font;
font = System.Windows.Forms.RTF.Font.GetFont(rtf, rtf.Param);
if (font != null) {
FlushText(rtf, false);
this.rtf_style.rtf_rtffont = font;
}
break;
}
case RTF.Minor.Plain: {
FlushText(rtf, false);
rtf_style.rtf_rtfstyle = FontStyle.Regular;
break;
}
case RTF.Minor.Bold: {
FlushText(rtf, false);
if (rtf.Param == RTF.RTF.NoParam) {
rtf_style.rtf_rtfstyle |= FontStyle.Bold;
} else {
rtf_style.rtf_rtfstyle &= ~FontStyle.Bold;
}
break;
}
case RTF.Minor.Italic: {
FlushText(rtf, false);
if (rtf.Param == RTF.RTF.NoParam) {
rtf_style.rtf_rtfstyle |= FontStyle.Italic;
} else {
rtf_style.rtf_rtfstyle &= ~FontStyle.Italic;
}
break;
}
case RTF.Minor.StrikeThru: {
FlushText(rtf, false);
if (rtf.Param == RTF.RTF.NoParam) {
rtf_style.rtf_rtfstyle |= FontStyle.Strikeout;
} else {
rtf_style.rtf_rtfstyle &= ~FontStyle.Strikeout;
}
break;
}
case RTF.Minor.Underline: {
FlushText(rtf, false);
if (rtf.Param == RTF.RTF.NoParam) {
rtf_style.rtf_rtfstyle |= FontStyle.Underline;
} else {
rtf_style.rtf_rtfstyle = rtf_style.rtf_rtfstyle & ~FontStyle.Underline;
}
break;
}
case RTF.Minor.Invisible: {
FlushText (rtf, false);
rtf_style.rtf_visible = false;
break;
}
case RTF.Minor.NoUnderline: {
FlushText(rtf, false);
rtf_style.rtf_rtfstyle &= ~FontStyle.Underline;
break;
}
}
break;
}
case RTF.Major.ParAttr: {
switch (rtf.Minor) {
case RTF.Minor.ParDef:
FlushText (rtf, false);
rtf_style.rtf_par_line_left_indent = 0;
rtf_style.rtf_rtfalign = HorizontalAlignment.Left;
break;
case RTF.Minor.LeftIndent:
using (Graphics g = CreateGraphics ())
rtf_style.rtf_par_line_left_indent = (int) (((float) rtf.Param / 1440.0F) * g.DpiX + 0.5F);
break;
case RTF.Minor.QuadCenter:
FlushText (rtf, false);
rtf_style.rtf_rtfalign = HorizontalAlignment.Center;
break;
case RTF.Minor.QuadJust:
FlushText (rtf, false);
rtf_style.rtf_rtfalign = HorizontalAlignment.Center;
break;
case RTF.Minor.QuadLeft:
FlushText (rtf, false);
rtf_style.rtf_rtfalign = HorizontalAlignment.Left;
break;
case RTF.Minor.QuadRight:
FlushText (rtf, false);
rtf_style.rtf_rtfalign = HorizontalAlignment.Right;
break;
}
break;
}
case RTF.Major.SpecialChar: {
//Console.Write("[Got SpecialChar control {0}]", rtf.Minor);
SpecialChar (rtf);
break;
}
}
}
// To allow us to keep track of the sections and revert formatting
// as we go in and out of sections of the document.
private void HandleGroup (RTF.RTF rtf)
{
//start group - save the current formatting on to a stack
//end group - go back to the formatting at the current group
if (rtf_section_stack == null) {
rtf_section_stack = new Stack ();
}
if (rtf.Major == RTF.Major.BeginGroup) {
rtf_section_stack.Push (rtf_style.Clone ());
//spec specifies resetting unicode ignore at begin group as an attempt at error
//recovery.
rtf_skip_count = 0;
} else if (rtf.Major == RTF.Major.EndGroup) {
if (rtf_section_stack.Count > 0) {
FlushText (rtf, false);
rtf_style = (RtfSectionStyle) rtf_section_stack.Pop ();
}
}
}
internal PictureTag (Line line, int start, RTF.Picture picture) : base (line, start)
{
this.picture = picture;
}
internal void InsertPicture (Line line, int pos, RTF.Picture picture)
{
//LineTag next_tag;
LineTag tag;
int len;
len = 1;
// Just a place holder basically
line.text.Insert (pos, "I");
PictureTag picture_tag = new PictureTag (line, pos + 1, picture);
tag = LineTag.FindTag (line, pos);
picture_tag.CopyFormattingFrom (tag);
/*next_tag = */tag.Break (pos + 1);
picture_tag.Previous = tag;
picture_tag.Next = tag.Next;
tag.Next = picture_tag;
//
// Picture tags need to be surrounded by text tags
//
if (picture_tag.Next == null) {
picture_tag.Next = new LineTag (line, pos + 1);
picture_tag.Next.CopyFormattingFrom (tag);
picture_tag.Next.Previous = picture_tag;
}
tag = picture_tag.Next;
while (tag != null) {
tag.Start += len;
tag = tag.Next;
}
line.Grow (len);
line.recalc = true;
UpdateView (line, pos);
}