private void scintillaControl_InsertCheck(object sender, InsertCheckEventArgs e)
{
if ((e.Text.EndsWith("\r") || e.Text.EndsWith("\n")))
{
//var curLine = scintilla1.LineFromPosition(e.Position);
//var curLineText = scintilla1.Lines[curLine].Text;
//var indent = Regex.Match(curLineText, @"^\s*");
//e.Text += indent.Value; // Add indent following "\r\n"
// Current line end with bracket?
//if (Regex.IsMatch(curLineText, @"{\s*$"))
// e.Text += '\t'; // Add tab
int indent = _scintillaControl.zGetLineIndent(_scintillaControl.zGetCurrentLineNumber());
int position = _scintillaControl.CurrentPosition - 1;
if (position >= 0)
{
char c = (char)_scintillaControl.GetCharAt(position);
if (c == '{')
indent += _tabWidth;
}
e.Text += new string(' ', indent); // Add indent following "\r\n"
}
}
/// <summary>
/// On insert text event, auto format the text.
/// </summary>
/// <param name="s"></param>
/// <param name="e"></param>
private void HandleInsertCheck(object s, InsertCheckEventArgs e)
{
// do not insert text when
// the Ctrl key is pressed
if (DisableEditing)
e.Text = string.Empty;
// auto indent
if (e.Text.EndsWith("\n"))
{
// get text of line above
var text = Lines[LineFromPosition(CurrentPosition)].Text;
// insert indent of line above
e.Text += Regex.Match(text, @"^[ \t]*").Value;
// if line above ends with '{' insert indent
if (Regex.IsMatch(text, @"{\s*$"))
e.Text += '\t';
}
}
/// <summary>
/// On insert text event, auto format the text.
/// </summary>
/// <param name="s"></param>
/// <param name="e"></param>
private void HandleInsertCheck(object s, InsertCheckEventArgs e)
{
// do not insert text when
// the Ctrl key is pressed
if (DisableEditing)
{
e.Text = string.Empty;
}
// auto indent
if (e.Text.EndsWith("\n"))
{
// get text of line above
var text = Lines[LineFromPosition(CurrentPosition)].Text;
// insert indent of line above
e.Text += Regex.Match(text, @"^[ \t]*").Value;
// if line above ends with '{' insert indent
if (Regex.IsMatch(text, @"{\s*$"))
{
e.Text += '\t';
}
}
}
private void ScnModified(ref NativeMethods.SCNotification scn)
{
// The InsertCheck, BeforeInsert, BeforeDelete, Insert, and Delete events can all potentially require
// the same conversions: byte to char position, char* to string, etc.... To avoid doing the same work
// multiple times we share that data between events.
if ((scn.modificationType & NativeMethods.SC_MOD_INSERTCHECK) > 0)
{
var eventArgs = new InsertCheckEventArgs(this, scn.position, scn.length, scn.text);
OnInsertCheck(eventArgs);
cachedPosition = eventArgs.CachedPosition;
cachedText = eventArgs.CachedText;
}
const int sourceMask = (NativeMethods.SC_PERFORMED_USER | NativeMethods.SC_PERFORMED_UNDO | NativeMethods.SC_PERFORMED_REDO);
if ((scn.modificationType & (NativeMethods.SC_MOD_BEFOREDELETE | NativeMethods.SC_MOD_BEFOREINSERT)) > 0)
{
var source = (ModificationSource)(scn.modificationType & sourceMask);
var eventArgs = new BeforeModificationEventArgs(this, source, scn.position, scn.length, scn.text);
eventArgs.CachedPosition = cachedPosition;
eventArgs.CachedText = cachedText;
if ((scn.modificationType & NativeMethods.SC_MOD_BEFOREINSERT) > 0)
{
OnBeforeInsert(eventArgs);
}
else
{
OnBeforeDelete(eventArgs);
}
cachedPosition = eventArgs.CachedPosition;
cachedText = eventArgs.CachedText;
}
if ((scn.modificationType & (NativeMethods.SC_MOD_DELETETEXT | NativeMethods.SC_MOD_INSERTTEXT)) > 0)
{
var source = (ModificationSource)(scn.modificationType & sourceMask);
var eventArgs = new ModificationEventArgs(this, source, scn.position, scn.length, scn.text, scn.linesAdded);
eventArgs.CachedPosition = cachedPosition;
eventArgs.CachedText = cachedText;
if ((scn.modificationType & NativeMethods.SC_MOD_INSERTTEXT) > 0)
{
OnInsert(eventArgs);
}
else
{
OnDelete(eventArgs);
}
// Always clear the cache
cachedPosition = null;
cachedText = null;
// For backward compatibility.... Of course this means that we'll raise two
// TextChanged events for replace (insert/delete) operations, but that's life.
OnTextChanged(EventArgs.Empty);
}
if ((scn.modificationType & NativeMethods.SC_MOD_CHANGEANNOTATION) > 0)
{
var eventArgs = new ChangeAnnotationEventArgs(scn.line);
OnChangeAnnotation(eventArgs);
}
}
/// <summary>
/// Raises the <see cref="InsertCheck" /> event.
/// </summary>
/// <param name="e">An <see cref="InsertCheckEventArgs" /> that contains the event data.</param>
protected virtual void OnInsertCheck(InsertCheckEventArgs e)
{
var handler = Events[insertCheckEventKey] as EventHandler<InsertCheckEventArgs>;
if (handler != null)
handler(this, e);
}
private void textBox_InsertCheck(object sender, InsertCheckEventArgs e)
{
var text = e.Text;
// Replace tabs with 3 whitespaces
text = text.Replace("\t", " ");
var x = this.textBox.Lines.Select(l => l.Indentation).ToList();
// TODO: Handle newlines and indention here somehow? Or can Indentation do that?
// Return the modified text.
e.Text = text;
}
private void codeBox_InsertCheck(object sender, InsertCheckEventArgs e)
{
if (e.Text.EndsWith("\r") || e.Text.EndsWith("\n"))
{
int startPos = _codeBox.Lines[_codeBox.LineFromPosition(_codeBox.CurrentPosition)].Position;
int endPos = e.Position;
string curLineText = _codeBox.GetTextRange(startPos, (endPos - startPos));
Match indent = Regex.Match(curLineText, "^[ \\t]*");
e.Text = (e.Text + indent.Value);
if (Regex.IsMatch(curLineText, "{\\s*$"))
{
e.Text = (e.Text + "\t");
}
}
}
private void scintilla1_InsertCheck(object sender, InsertCheckEventArgs e)
{
bool removed = false;
string text = e.Text;
// remove ctrl-B code 0x02
if (e.Text == "\u0002")
{
e.Text = null;
removed = true;
}
WriteMessage("insert \"{0}\" code {1}{2}", text, (int)text[0], removed ? " removed" : "");
}
/// <summary>
/// Triggered when some text (like line ending) is added to current document
/// </summary>
/// <param name="e"></param>
protected override void OnInsertCheck(InsertCheckEventArgs e) {
base.OnInsertCheck(e);
if (AutoIndent) AutoIndentInsertCheck(e);
}
/// <summary>
/// Performs automatic indentation of line inserted based on current line indentation
/// Increases indentation if the trimmed line ends with opening brace or colon
/// </summary>
/// <param name="e"></param>
private void AutoIndentInsertCheck(InsertCheckEventArgs e) {
var inserted = e.Text;
if (inserted[0] != '\r' && inserted[0] != '\n') return;
var line = Lines[CurrentLine].Text;
var lineIndent = "";
var lineTrimmed = line.TrimEnd();
var lineTrimmedLength = lineTrimmed.Length;
var lineEnd = lineTrimmedLength > 0 ? lineTrimmed[lineTrimmedLength - 1] : '*';
char c;
for (int i = 0; i < line.Length; i++) {
c = line[i];
if (c == ' ') lineIndent += c;
else if (c == '\t') lineIndent += IndentationUnit;
else break;
}
if (Lexer == Lexer.Cpp || CurrentLine > 0) { // switch case
lineTrimmed = lineTrimmed.Trim().TrimEnd(';');
var unitLength = IndentationUnit.Length;
if (lineTrimmed == "break" && lineIndent.Length > unitLength) {
lineIndent = lineIndent.Substring(unitLength);
}
}
e.Text += lineIndent;
if (lineEnd == '{' || lineEnd == '[' || lineEnd == '(' || lineEnd == ':') e.Text += IndentationUnit;
}
private void scintilla_InsertCheck(object sender, InsertCheckEventArgs e)
{
switch (e.Text)
{
// remove ctrl-A code 0x01 (SaveAs)
case "\u0001":
// remove ctrl-B code 0x02 (CompileCode)
case "\u0002":
// remove ctrl-C code 0x03 (AbortThreadExecution)
case "\u0003":
// remove ctrl-N code 0x03 (New)
case "\u000E":
// remove ctrl-O code 0x0F (Open)
case "\u000F":
// remove shift-ctrl-R code 0x12 (_RestartRunSource)
case "\u0012":
// remove ctrl-S code 0x12 (Save)
case "\u0013":
// remove ctrl-U code 0x14 (_UpdateRunSource)
case "\u0014":
e.Text = null;
break;
}
}
