string GetBody(ScintillaControl sci, EForeach expr)
{
var result = sci.GetTextRange(sci.MBSafePosition(expr.BodyPosition), sci.MBSafePosition(expr.EndPosition)).Trim();
var indentation = sci.GetLineIndentation(sci.LineFromPosition(expr.StartPosition)) / sci.Indent;
if (indentation > 0)
{
var s = string.Empty;
for (var i = 0; i < indentation; i++)
{
s += '\t';
}
result = result.Replace(s, string.Empty);
}
result = result.Trim('{', '\r', '\n');
result = result.TrimEnd('}');
result = result.TrimEnd('\r', '\n');
var variable = GetSnippetVar(sci, expr);
if (result.TrimStart('\t', ' ').Length > 0)
{
variable += sci.NewLineMarker;
}
result = result.Insert(0, $"{'\t'}{variable}");
return(result);
}
/// <summary>
/// Converts a string to RTF based on scintilla configuration
/// </summary>
public static string GetConversion(Language lang, ScintillaControl sci, int start, int end)
{
int lengthDoc = sci.TextLength;
if (end < 0 || end > lengthDoc)
{
end = lengthDoc;
}
var useStyles = new UseStyle[MAX_STYLEDEF];
foreach (var useStyle in lang.usestyles)
{
if (useStyle.key >= MAX_STYLEDEF)
{
// highest style is STYLE_LASTPREDEFINED, which is 39
// something is wrong if the code reaches here... throw an exception?
continue;
}
useStyles[useStyle.key] = useStyle;
}
var fontTable = new StringBuilder(RTF_FONTTABLEOPEN);
var colorTable = new StringBuilder(RTF_COLORTABLEOPEN);
var body = new StringBuilder();
var fontDef = new Dictionary <string, int>();
var colorDef = new Dictionary <int, int>();
int fontCount = 0;
int colorCount = 0;
int lastStyleByte = -1;
string lastFontName = null;
int lastFontSize = -1;
int lastForeColor = -1;
int lastBackColor = -1;
bool lastBold = false;
bool lastItalic = false;
// Add the 'default' style back colour without the colour definition
// so the RTF reader uses its own default colour - the 'auto' colour
colorDef.Add(GetBackColor(useStyles[0]), colorCount++);
colorTable.Append(RTF_COLORDEFDELIMITER);
string chars = sci.GetTextRange(start, end);
int length = end - start;
for (int i = 0; i < length; i++)
{
int styleByte = sci.StyleAt(start + i);
if (styleByte >= MAX_STYLEDEF)
{
// highest style is STYLE_LASTPREDEFINED, which is 39
// something is wrong if the code reaches here... throw an exception?
styleByte = 0;
}
if (styleByte != lastStyleByte)
{
var style = useStyles[styleByte];
if (style == null)
{
// there shouldn't be any style that's not defined but present in the editor
// something is wrong if the code reaches here... throw an exception?
styleByte = 0;
style = useStyles[styleByte];
}
string fontName = style.FontName;
if (lastFontName != fontName)
{
int fontIndex;
if (!fontDef.TryGetValue(fontName, out fontIndex))
{
fontIndex = fontCount++;
fontDef.Add(fontName, fontIndex);
fontTable.Append(RTF_FONTDEFOPEN + RTF_SETFONTFACE + fontIndex + " " + fontName + RTF_FONTDEFCLOSE);
}
body.Append(RTF_SETFONTFACE + fontIndex + " ");
lastFontName = fontName;
}
int fontSize = style.FontSize << 1; // font size is stored in half-points in RTF
if (lastFontSize != fontSize)
{
body.Append(RTF_SETFONTSIZE + fontSize + " ");
lastFontSize = fontSize;
}
int foreColor = GetForeColor(style);
if (lastForeColor != foreColor)
{
int colorIndex;
if (!colorDef.TryGetValue(foreColor, out colorIndex))
{
var color = Color.FromArgb(foreColor);
colorIndex = colorCount++;
colorDef.Add(foreColor, colorIndex);
colorTable.Append(RTF_SETCOLORRED + color.R + RTF_SETCOLORGREEN + color.G + RTF_SETCOLORBLUE + color.B + RTF_COLORDEFDELIMITER);
}
body.Append(RTF_SETCOLORFORE + colorIndex + " ");
lastForeColor = foreColor;
}
int backColor = GetBackColor(style);
if (lastBackColor != backColor)
{
int colorIndex;
if (!colorDef.TryGetValue(backColor, out colorIndex))
{
var color = Color.FromArgb(backColor);
colorIndex = colorCount++;
colorDef.Add(backColor, colorIndex);
colorTable.Append(RTF_SETCOLORRED + color.R + RTF_SETCOLORGREEN + color.G + RTF_SETCOLORBLUE + color.B + RTF_COLORDEFDELIMITER);
}
body.Append(RTF_SETCOLORBACK + colorIndex + " ");
body.Append(RTF_SETHIGHLIGHT + colorIndex + " "); // set highlight colour as well
lastBackColor = backColor;
}
bool bold = style.IsBold;
if (lastBold != bold)
{
body.Append(bold ? RTF_BOLD_ON : RTF_BOLD_OFF);
lastBold = bold;
}
bool italic = style.IsItalics;
if (lastItalic != italic)
{
body.Append(italic ? RTF_ITALIC_ON : RTF_ITALIC_OFF);
lastItalic = italic;
}
lastStyleByte = styleByte;
}
char c = chars[i];
switch (c)
{
case '\0':
break; // ignore NULL characters as they will cause the clipboard to truncate the string
case '{':
body.Append(@"\{");
break;
case '}':
body.Append(@"\}");
break;
case '\\':
body.Append(@"\\");
break;
case '\t':
body.Append(RTF_TAB);
break;
case '\r':
body.Append(RTF_EOL); // alternative: RTF_LINEBREAK
break;
case '\n':
if (i == 0 || chars[i - 1] != '\r')
{
body.Append(RTF_EOL); // alternative: RTF_LINEBREAK
}
break;
default:
if (' ' <= c || c <= sbyte.MaxValue)
{
body.Append(c);
}
else if (c <= byte.MaxValue)
{
body.Append(RTF_HEX + ((byte)c).ToString("x2"));
}
else if (c <= ushort.MaxValue)
{
body.Append(RTF_UNICODE + ((short)c) + RTF_UNICODESUBSTITUTE);
}
break;
}
}
fontTable.Append(RTF_FONTTABLECLOSE);
colorTable.Append(RTF_COLORTABLECLOSE);
return(RTF_HEADEROPEN + fontTable + colorTable + body + RTF_HEADERCLOSE);
}