public static void UndoableFormatRange(ITextView textView, ITextBuffer textBuffer, AstRoot ast, ITextRange formatRange)
{
ICompoundUndoAction undoAction = EditorShell.Current.CreateCompoundAction(textView, textView.TextBuffer);
undoAction.Open(Resources.AutoFormat);
bool changed = false;
try {
// Now format the scope
changed = RangeFormatter.FormatRange(textView, textBuffer, formatRange, ast, REditorSettings.FormatOptions);
} finally {
undoAction.Close(!changed);
}
}
public static void DoActionOnLines(ITextView textView, ITextBuffer textBuffer, ITextRange range, Func <ITextSnapshotLine, bool> action, string actionName)
{
// When user clicks editor margin to select a line, selection actually
// ends in the beginning of the next line. In order to prevent commenting
// of the next line that user did not select, we need to shrink span to
// format and exclude the trailing line break.
ITextSnapshot snapshot = textBuffer.CurrentSnapshot;
ITextSnapshotLine line = snapshot.GetLineFromPosition(range.End);
int start = range.Start;
int end = range.End;
if (line.Start.Position == range.End && range.Length > 0)
{
if (line.LineNumber > 0)
{
line = snapshot.GetLineFromLineNumber(line.LineNumber - 1);
end = line.End.Position;
start = Math.Min(start, end);
}
}
int startLineNumber = textBuffer.CurrentSnapshot.GetLineNumberFromPosition(start);
int endLineNumber = textBuffer.CurrentSnapshot.GetLineNumberFromPosition(end);
ICompoundUndoAction undoAction = EditorShell.Current.CreateCompoundAction(textView, textBuffer);
undoAction.Open(actionName);
bool changed = false;
try
{
for (int i = startLineNumber; i <= endLineNumber; i++)
{
line = textBuffer.CurrentSnapshot.GetLineFromLineNumber(i);
changed |= action(line);
}
}
finally
{
undoAction.Close(!changed);
}
}
/// <summary>
/// Formats specific scope
/// </summary>
private static void FormatScope(ITextView textView, ITextBuffer textBuffer,
AstRoot ast, IScope scope, int baseIndentPosition, bool indentCaret)
{
ICompoundUndoAction undoAction = EditorShell.Current.CreateCompoundAction(textView, textView.TextBuffer);
undoAction.Open(Resources.AutoFormat);
bool changed = false;
try {
// Now format the scope
changed = RangeFormatter.FormatRangeExact(textView, textBuffer, scope, ast,
REditorSettings.FormatOptions, baseIndentPosition, indentCaret);
if (indentCaret)
{
IndentCaretInNewScope(textView, textBuffer, scope, REditorSettings.FormatOptions);
changed = true;
}
} finally {
undoAction.Close(!changed);
}
}