void PerformActionInUndo(Func <bool> action)
{
ITrackingPoint anchor = _textView.TextSnapshot.CreateTrackingPoint(_textView.Selection.AnchorPoint.Position, PointTrackingMode.Positive);
ITrackingPoint active = _textView.TextSnapshot.CreateTrackingPoint(_textView.Selection.ActivePoint.Position, PointTrackingMode.Positive);
bool empty = _textView.Selection.IsEmpty;
TextSelectionMode mode = _textView.Selection.Mode;
using (var undo = _undoHistory.CreateTransaction("Untabify"))
{
_operations.AddBeforeTextBufferChangePrimitive();
if (!action())
{
undo.Cancel();
return;
}
ITextSnapshot after = _textView.TextSnapshot;
_operations.SelectAndMoveCaret(new VirtualSnapshotPoint(anchor.GetPoint(after)),
new VirtualSnapshotPoint(active.GetPoint(after)),
mode,
EnsureSpanVisibleOptions.ShowStart);
_operations.AddAfterTextBufferChangePrimitive();
undo.Complete();
}
}
public StubTextSelection(StubWpfTextView textView)
{
_wpfTextView = textView;
this._activePoint = this._anchorPoint = new VirtualSnapshotPoint(this._wpfTextView.TextSnapshot, 0);
this._selectionMode = TextSelectionMode.Stream;
}
private void EnterMode(SnapshotSpan span, TextSelectionMode mode = TextSelectionMode.Stream)
{
_textView.SelectAndUpdateCaret(span, mode);
Assert.IsFalse(_context.IsEmpty);
_context.RunAll();
Assert.IsTrue(_context.IsEmpty);
}
public void EnterModeWithSelection(SnapshotSpan span, TextSelectionMode mode = TextSelectionMode.Stream)
{
_textView.SelectAndUpdateCaret(span, mode);
Assert.IsFalse(_context.IsEmpty);
_context.RunAll();
Assert.IsTrue(_context.IsEmpty);
}
/// <summary>
/// Constructs a BeforeTextBufferChangeUndoPrimitive.
/// </summary>
/// <param name="textView">
/// The text view that was responsible for causing this change.
/// </param>
/// <param name="undoHistory">
/// The <see cref="ITextUndoHistory" /> this primitive will be added to.
/// </param>
/// <exception cref="ArgumentNullException"><paramref name="textView"/> is null.</exception>
/// <exception cref="ArgumentNullException"><paramref name="undoHistory"/> is null.</exception>
public static BeforeTextBufferChangeUndoPrimitive Create(ITextView textView, ITextUndoHistory undoHistory)
{
if (textView == null)
{
throw new ArgumentNullException("textView");
}
if (undoHistory == null)
{
throw new ArgumentNullException("undoHistory");
}
// Store the ITextView for these changes in the ITextUndoHistory properties so we can retrieve it later.
if (!undoHistory.Properties.ContainsProperty(typeof(ITextView)))
{
undoHistory.Properties[typeof(ITextView)] = textView;
}
CaretPosition caret = textView.Caret.Position;
IMapEditToData map = BeforeTextBufferChangeUndoPrimitive.GetMap(textView);
int oldCaretIndex = BeforeTextBufferChangeUndoPrimitive.MapToData(map, caret.BufferPosition);
int oldCaretVirtualSpaces = caret.VirtualBufferPosition.VirtualSpaces;
VirtualSnapshotPoint anchor = textView.Selection.AnchorPoint;
int oldSelectionAnchorIndex = BeforeTextBufferChangeUndoPrimitive.MapToData(map, anchor.Position);
int oldSelectionAnchorVirtualSpaces = anchor.VirtualSpaces;
VirtualSnapshotPoint active = textView.Selection.ActivePoint;
int oldSelectionActiveIndex = BeforeTextBufferChangeUndoPrimitive.MapToData(map, active.Position);
int oldSelectionActiveVirtualSpaces = active.VirtualSpaces;
TextSelectionMode oldSelectionMode = textView.Selection.Mode;
if (oldCaretVirtualSpaces != 0 ||
oldSelectionAnchorIndex != oldCaretIndex ||
oldSelectionAnchorVirtualSpaces != 0 ||
oldSelectionActiveIndex != oldCaretIndex ||
oldSelectionActiveVirtualSpaces != 0 ||
oldSelectionMode != TextSelectionMode.Stream)
{
return(new GeneralBeforeTextBufferChangeUndoPrimitive
(undoHistory, oldCaretIndex, caret.Affinity, oldCaretVirtualSpaces, oldSelectionAnchorIndex,
oldSelectionAnchorVirtualSpaces, oldSelectionActiveIndex, oldSelectionActiveVirtualSpaces, oldSelectionMode));
}
else
{
return(new BeforeTextBufferChangeUndoPrimitive(undoHistory, oldCaretIndex, caret.Affinity));
}
}
public GeneralBeforeTextBufferChangeUndoPrimitive(ITextUndoHistory undoHistory,
int oldCaretIndex,
PositionAffinity oldCaretAffinity,
int oldCaretVirtualSpaces,
int oldSelectionAnchorIndex,
int oldSelectionAnchorVirtualSpaces,
int oldSelectionActiveIndex,
int oldSelectionActiveVirtualSpaces,
TextSelectionMode oldSelectionMode)
: base(undoHistory, oldCaretIndex, oldCaretAffinity)
{
_oldCaretVirtualSpaces = oldCaretVirtualSpaces;
_oldSelectionAnchorIndex = oldSelectionAnchorIndex;
_oldSelectionAnchorVirtualSpaces = oldSelectionAnchorVirtualSpaces;
_oldSelectionActiveIndex = oldSelectionActiveIndex;
_oldSelectionActiveVirtualSpaces = oldSelectionActiveVirtualSpaces;
_oldSelectionMode = oldSelectionMode;
}
public GeneralAfterTextBufferChangeUndoPrimitive(ITextUndoHistory undoHistory,
int newCaretIndex,
PositionAffinity newCaretAffinity,
int newCaretVirtualSpaces,
int newSelectionAnchorIndex,
int newSelectionAnchorVirtualSpaces,
int newSelectionActiveIndex,
int newSelectionActiveVirtualSpaces,
TextSelectionMode newSelectionMode)
: base(undoHistory, newCaretIndex, newCaretAffinity)
{
_newCaretVirtualSpaces = newCaretVirtualSpaces;
_newSelectionAnchorIndex = newSelectionAnchorIndex;
_newSelectionAnchorVirtualSpaces = newSelectionAnchorVirtualSpaces;
_newSelectionActiveIndex = newSelectionActiveIndex;
_newSelectionActiveVirtualSpaces = newSelectionActiveVirtualSpaces;
_newSelectionMode = newSelectionMode;
}
public TextSelection(IWpfTextView textView, IAdornmentLayer selectionLayer, IEditorFormatMap editorFormatMap)
{
if (selectionLayer == null)
{
throw new ArgumentNullException(nameof(selectionLayer));
}
if (editorFormatMap == null)
{
throw new ArgumentNullException(nameof(editorFormatMap));
}
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
Mode = TextSelectionMode.Stream;
activePoint = anchorPoint = new VirtualSnapshotPoint(TextView.TextSnapshot, 0);
TextView.TextBuffer.ChangedHighPriority += TextBuffer_ChangedHighPriority;
TextView.Options.OptionChanged += Options_OptionChanged;
TextView.GotAggregateFocus += TextView_GotAggregateFocus;
TextView.LostAggregateFocus += TextView_LostAggregateFocus;
textSelectionLayer = new TextSelectionLayer(this, selectionLayer, editorFormatMap);
ActivationTracksFocus = true;
}
/// <summary>
/// Constructs a new selection Element
/// </summary>
public SkiaTextSelection(SkiaTextView wpfTextView, IEditorFormatMap editorFormatMap, GuardedOperations guardedOperations)
{
// Verify
Debug.Assert(wpfTextView != null);
_wpfTextView = wpfTextView;
_editorFormatMap = editorFormatMap;
ActivationTracksFocus = true;
// Initialize members
_activePoint = _anchorPoint = new VirtualSnapshotPoint(_wpfTextView.TextSnapshot, 0);
_selectionMode = TextSelectionMode.Stream;
_selectionAdornmentLayer = _wpfTextView.GetAdornmentLayer(PredefinedAdornmentLayers.Selection);
_guardedOperations = guardedOperations;
this.CreateAndSetPainter("Selected Text", ref _focusedPainter, SKColors.Blue.WithAlpha(80));
this.CreateAndSetPainter("Inactive Selected Text", ref _unfocusedPainter, SKColors.Gray.WithAlpha(80));
this.Painter.Activate();
SubscribeToEvents();
}
public static void SelectAndUpdateCaret(this ITextView textView, SnapshotSpan span, TextSelectionMode mode = TextSelectionMode.Stream)
{
textView.Selection.Mode = mode;
textView.Selection.Select(span, false);
var point = span.Length > 0 ? span.End.Subtract(1) : span.Start;
MoveCaretTo(textView, point);
}
public void SelectAndMoveCaret(VirtualSnapshotPoint anchorPoint, VirtualSnapshotPoint activePoint, TextSelectionMode selectionMode, EnsureSpanVisibleOptions? scrollOptions) {
throw new NotImplementedException();
}
public void SelectAndMoveCaret(VirtualSnapshotPoint anchorPoint, VirtualSnapshotPoint activePoint, TextSelectionMode selectionMode) {
throw new NotImplementedException();
}
public void SelectAndMoveCaret(VirtualSnapshotPoint anchorPoint, VirtualSnapshotPoint activePoint, TextSelectionMode selectionMode)
{
throw new NotImplementedException();
}
public static void SelectAndUpdateCaret(this ITextView textView, SnapshotSpan span, TextSelectionMode mode = TextSelectionMode.Stream)
{
textView.Selection.Mode = mode;
textView.Selection.Select(span, false);
MoveCaretTo(textView, span.End.Position);
}
public void SelectAndMoveCaret(VirtualSnapshotPoint anchorPoint, VirtualSnapshotPoint activePoint, TextSelectionMode selectionMode) => SelectAndMoveCaret(anchorPoint, activePoint, selectionMode, EnsureSpanVisibleOptions.MinimumScroll);
/// <summary>
/// Sets text selection mode by words or chars
/// </summary>
/// <param name="mode">The parameter which indicates the text selection mode</param>
/// <returns>An instance of the widget object</returns>
public AnnotationWidget TextSelectionMode(TextSelectionMode mode)
{
_options.TextSelectionByCharModeEnabled = (mode == Options.TextSelectionMode.ByChars);
return this;
}
private void EnterMode(ModeKind kind, SnapshotSpan span, TextSelectionMode mode = TextSelectionMode.Stream)
{
EnterMode(span, mode);
_buffer.SwitchMode(kind, ModeArgument.None);
}
public void SelectAndMoveCaret(VirtualSnapshotPoint anchorPoint, VirtualSnapshotPoint activePoint, TextSelectionMode selectionMode) => EditorOperations.SelectAndMoveCaret(anchorPoint, activePoint, selectionMode);
public void Clear() {
Mode = TextSelectionMode.Stream;
ClearInternal();
}
public TextSelection(IWpfTextView textView, IAdornmentLayer selectionLayer, IEditorFormatMap editorFormatMap) {
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (selectionLayer == null)
throw new ArgumentNullException(nameof(selectionLayer));
if (editorFormatMap == null)
throw new ArgumentNullException(nameof(editorFormatMap));
TextView = textView;
Mode = TextSelectionMode.Stream;
activePoint = anchorPoint = new VirtualSnapshotPoint(TextView.TextSnapshot, 0);
TextView.TextBuffer.ChangedHighPriority += TextBuffer_ChangedHighPriority;
TextView.Options.OptionChanged += Options_OptionChanged;
TextView.GotAggregateFocus += TextView_GotAggregateFocus;
TextView.LostAggregateFocus += TextView_LostAggregateFocus;
textSelectionLayer = new TextSelectionLayer(this, selectionLayer, editorFormatMap);
ActivationTracksFocus = true;
}
public void SelectAndMoveCaret(VirtualSnapshotPoint anchorPoint, VirtualSnapshotPoint activePoint, TextSelectionMode selectionMode, EnsureSpanVisibleOptions?scrollOptions)
{
throw new NotImplementedException();
}
/// <summary>
/// Sets text selection mode by words or chars
/// </summary>
/// <param name="mode">The parameter which indicates the text selection mode</param>
/// <returns>An instance of the widget object</returns>
public AnnotationWidget TextSelectionMode(TextSelectionMode mode)
{
_options.TextSelectionByCharModeEnabled = (mode == Options.TextSelectionMode.ByChars);
return(this);
}
/// <summary>
/// Sets text selection mode by words or chars
/// </summary>
/// <param name="mode">The parameter which indicates the text selection mode</param>
/// <returns>An instance of the widget object</returns>
public AnnotationWidget TextSelectionMode(TextSelectionMode mode)
{
_options.TextSelectionByCharModeEnabled = (mode == GroupDocs_Annotation_SharePoint_WebPart.BusinessLogic.Options.TextSelectionMode.ByChars);
return(this);
}
public void SelectAndMoveCaret(VirtualSnapshotPoint anchorPoint, VirtualSnapshotPoint activePoint, TextSelectionMode selectionMode, EnsureSpanVisibleOptions?scrollOptions) => EditorOperations.SelectAndMoveCaret(anchorPoint, activePoint, selectionMode, scrollOptions);
public void Clear()
{
Mode = TextSelectionMode.Stream;
ClearInternal();
}
/// <summary>
/// Sets text selection mode by words or chars
/// </summary>
/// <param name="mode">The parameter which indicates the text selection mode</param>
/// <returns>An instance of the widget object</returns>
public AnnotationWidget TextSelectionMode(TextSelectionMode mode)
{
_options.TextSelectionByCharModeEnabled = (mode == GroupDocs.Demo.Annotation.Webforms.BusinessLogic.Options.TextSelectionMode.ByChars);
return(this);
}
public void SelectAndMoveCaret(VirtualSnapshotPoint anchorPoint, VirtualSnapshotPoint activePoint, TextSelectionMode selectionMode) => EditorOperations.SelectAndMoveCaret(anchorPoint, activePoint, selectionMode);
public void SelectAndMoveCaret(VirtualSnapshotPoint anchorPoint, VirtualSnapshotPoint activePoint, TextSelectionMode selectionMode, EnsureSpanVisibleOptions? scrollOptions) => EditorOperations.SelectAndMoveCaret(anchorPoint, activePoint, selectionMode, scrollOptions);
public void SelectAndMoveCaret(VirtualSnapshotPoint anchorPoint, VirtualSnapshotPoint activePoint, TextSelectionMode selectionMode, EnsureSpanVisibleOptions? scrollOptions) {
anchorPoint = anchorPoint.TranslateTo(Snapshot);
activePoint = activePoint.TranslateTo(Snapshot);
if (anchorPoint == activePoint)
Selection.Clear();
else
Selection.Select(anchorPoint, activePoint);
Selection.Mode = selectionMode;
activePoint = activePoint.TranslateTo(Snapshot);
Caret.MoveTo(activePoint);
if (scrollOptions == null)
return;
anchorPoint = anchorPoint.TranslateTo(Snapshot);
activePoint = activePoint.TranslateTo(Snapshot);
if (activePoint > anchorPoint)
ViewScroller.EnsureSpanVisible(new SnapshotSpan(anchorPoint.Position, activePoint.Position), scrollOptions.Value & ~EnsureSpanVisibleOptions.ShowStart);
else
ViewScroller.EnsureSpanVisible(new SnapshotSpan(activePoint.Position, anchorPoint.Position), scrollOptions.Value | EnsureSpanVisibleOptions.ShowStart);
}
public void EnterMode(ModeKind kind, SnapshotSpan span, TextSelectionMode mode = TextSelectionMode.Stream)
{
EnterModeWithSelection(span, mode);
_buffer.SwitchMode(kind, ModeArgument.None);
}
