/// <summary>
/// Occurs when the mouse is hovered over an <c>EditorView</c></summary>
private void EditorViewMouseHover(object sender, EditorViewMouseEventArgs e)
{
var editor = sender as ActiproSoftware.SyntaxEditor.SyntaxEditor;
if (e.HitTestResult.Token == null ||
MouseHoveringOverToken == null ||
e.HitTestResult.Token.Language.Key.ToLower() == "plain text")
return;
var lang = Languages.Text;
switch (e.HitTestResult.Token.Language.Key.ToLower())
{
case "c#":
lang = Languages.Csharp;
break;
case "lua":
lang = Languages.Lua;
break;
case "python":
lang = Languages.Python;
break;
case "xml":
lang = Languages.Xml;
break;
}
if (editor == null)
return;
var itok = e.HitTestResult.Token;
var t =
new Token(
itok.StartOffset,
itok.EndOffset,
itok.ID,
itok.Key,
editor.Document.GetTokenText(itok));
var arg =
new MouseHoverOverTokenEventArgs(
lang,
t,
e.HitTestResult.DocumentLine.Index + 1);
MouseHoveringOverToken(this, arg);
if (!string.IsNullOrEmpty(arg.TooltipText))
e.ToolTipText = arg.TooltipText;
}
private static string FindAndConcatTokens(Token hoverToken, Token[] lineTokens)
{
string szFullToken = null;
// Check if the token the mouse is hovering over is valid or not
if (IsInvalidToken(hoverToken))
return null;
// Ignore whitespace the mouse is on
if (hoverToken.TokenType == "WhitespaceToken")
return null;
var iIndex = -1;
// Find the actual token the mouse is hovering over on the line
for (var i = 0; (i < lineTokens.Length) && (iIndex == -1); i++)
{
if ((lineTokens[i].StartOffset == hoverToken.StartOffset) &&
(lineTokens[i].EndOffset == hoverToken.EndOffset))
iIndex = i;
}
// Concatenate together valid tokens
if (iIndex != -1)
{
szFullToken = lineTokens[iIndex].Lexeme;
//OutDevice.OutLine(MessageType.Info, "- [Index: " + iIndex.ToString() + "] of [Total: " + lineTokens.Length + "] [" + lineTokens[iIndex].Lexeme + "] [" + lineTokens[iIndex].TokenType + "]");
var bStop = false;
for (var i = iIndex + 1; (i < lineTokens.Length) && !bStop; i++)
{
if (!IsInvalidToken(lineTokens[i]))
szFullToken = szFullToken + lineTokens[i].Lexeme;
else
bStop = true;
}
bStop = false;
for (var i = iIndex - 1; (i >= 0) && !bStop; i--)
{
if (!IsInvalidToken(lineTokens[i]))
szFullToken = lineTokens[i].Lexeme + szFullToken;
else
bStop = true;
}
// Remove spaces
szFullToken = szFullToken.Trim();
// Convert [ to .
szFullToken = szFullToken.Replace('[', '.');
// Remove ]
szFullToken = szFullToken.Replace("]", String.Empty);
}
return szFullToken;
}
/// <summary>
/// Returns true or false if the token is valid or not (ie. it can
/// be part of a Lua variable)
/// <remarks>This isn't 100% accurate but returns a good enough
/// result since the returned concatenated result still has to
/// be looked up as a valid variable anyways.</remarks>
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
private static bool IsInvalidToken(Token token)
{
var iHashCode = token.TokenType.GetHashCode();
// Special case for PunctuationToken
if (iHashCode == -1613044712)
{
if (token.Lexeme != ".")
return true;
}
return s_syntaxEditorTokenHashes.ContainsKey(iHashCode);
}
/// <summary>
/// Construct a new MouseHoverOverTokenEventArgs with the specified arguments
/// </summary>
/// <param name="language">language</param>
/// <param name="token">Token type</param>
/// <param name="lineNumber">the line number of the token</param>
public MouseHoverOverTokenEventArgs(Languages language,Token token, int lineNumber)
{
Language = language;
Token = token;
LineNumber = lineNumber;
}
