public static void DoActionOnLines(ITextView textView, ITextBuffer textBuffer, ITextRange range, IEditorShell editorShell, 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);
using (var undoAction = editorShell.CreateCompoundAction(textView, textBuffer)) {
undoAction.Open(actionName);
bool changed = false;
for (int i = startLineNumber; i <= endLineNumber; i++) {
line = textBuffer.CurrentSnapshot.GetLineFromLineNumber(i);
changed |= action(line);
}
if (changed) {
undoAction.Commit();
}
}
}
public static void UndoableFormatRange(ITextView textView, ITextBuffer textBuffer, ITextRange formatRange, IEditorShell editorShell)
{
using (var undoAction = editorShell.CreateCompoundAction(textView, textView.TextBuffer)) {
undoAction.Open(Resources.AutoFormat);
var result = RangeFormatter.FormatRange(textView, textBuffer, formatRange, REditorSettings.FormatOptions, editorShell);
if (result)
{
undoAction.Commit();
}
}
}
public static void FormatCurrentScope(ITextView textView, ITextBuffer textBuffer, IEditorShell editorShell, bool indentCaret)
{
// Figure out caret position in the document text buffer
SnapshotPoint?caretPoint = REditorDocument.MapCaretPositionFromView(textView);
if (!caretPoint.HasValue)
{
return;
}
IREditorDocument document = REditorDocument.TryFromTextBuffer(textBuffer);
if (document != null)
{
// Make sure AST is up to date
document.EditorTree.EnsureTreeReady();
var ast = document.EditorTree.AstRoot;
ITextSnapshot snapshot = textBuffer.CurrentSnapshot;
// Find scope to format
IScope scope = ast.GetNodeOfTypeFromPosition <IScope>(caretPoint.Value);
using (var undoAction = editorShell.CreateCompoundAction(textView, textView.TextBuffer)) {
undoAction.Open(Resources.AutoFormat);
// Now format the scope
bool changed = RangeFormatter.FormatRange(textView, textBuffer, scope, REditorSettings.FormatOptions, editorShell);
if (indentCaret)
{
// Formatting may change AST and the caret position so we need to reacquire both
caretPoint = REditorDocument.MapCaretPositionFromView(textView);
if (caretPoint.HasValue)
{
document.EditorTree.EnsureTreeReady();
ast = document.EditorTree.AstRoot;
scope = ast.GetNodeOfTypeFromPosition <IScope>(caretPoint.Value);
IndentCaretInNewScope(textView, scope, caretPoint.Value, REditorSettings.FormatOptions);
}
}
if (changed)
{
undoAction.Commit();
}
}
}
}
public static void DoActionOnLines(ITextView textView, ITextBuffer textBuffer, ITextRange range, IEditorShell editorShell, 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);
using (var undoAction = editorShell.CreateCompoundAction(textView, textBuffer)) {
undoAction.Open(actionName);
bool changed = false;
for (int i = startLineNumber; i <= endLineNumber; i++)
{
line = textBuffer.CurrentSnapshot.GetLineFromLineNumber(i);
changed |= action(line);
}
if (changed)
{
undoAction.Commit();
}
}
}
public static void FormatCurrentScope(ITextView textView, ITextBuffer textBuffer, IEditorShell editorShell, bool indentCaret) {
// Figure out caret position in the document text buffer
SnapshotPoint? caretPoint = REditorDocument.MapCaretPositionFromView(textView);
if (!caretPoint.HasValue) {
return;
}
IREditorDocument document = REditorDocument.TryFromTextBuffer(textBuffer);
if (document != null) {
// Make sure AST is up to date
document.EditorTree.EnsureTreeReady();
var ast = document.EditorTree.AstRoot;
ITextSnapshot snapshot = textBuffer.CurrentSnapshot;
// Find scope to format
IScope scope = ast.GetNodeOfTypeFromPosition<IScope>(caretPoint.Value);
using (var undoAction = editorShell.CreateCompoundAction(textView, textView.TextBuffer)) {
undoAction.Open(Resources.AutoFormat);
// Now format the scope
bool changed = RangeFormatter.FormatRange(textView, textBuffer, scope, REditorSettings.FormatOptions, editorShell);
if (indentCaret) {
// Formatting may change AST and the caret position so we need to reacquire both
caretPoint = REditorDocument.MapCaretPositionFromView(textView);
if (caretPoint.HasValue) {
document.EditorTree.EnsureTreeReady();
ast = document.EditorTree.AstRoot;
scope = ast.GetNodeOfTypeFromPosition<IScope>(caretPoint.Value);
IndentCaretInNewScope(textView, scope, caretPoint.Value, REditorSettings.FormatOptions);
}
}
if (changed) {
undoAction.Commit();
}
}
}
}
public static void UndoableFormatRange(ITextView textView, ITextBuffer textBuffer, ITextRange formatRange, IEditorShell editorShell, bool exactRange = false) {
using (var undoAction = editorShell.CreateCompoundAction(textView, textView.TextBuffer)) {
undoAction.Open(Resources.AutoFormat);
var result = exactRange
? RangeFormatter.FormatRangeExact(textView, textBuffer, formatRange, REditorSettings.FormatOptions, editorShell)
: RangeFormatter.FormatRange(textView, textBuffer, formatRange, REditorSettings.FormatOptions, editorShell);
if (result) {
undoAction.Commit();
}
}
}