public StandardDescriptor(UIElement element, UndoGroup undoGroup)
{
if (element == null)
throw new ArgumentNullException("element");
Element = element;
UndoGroup = undoGroup;
}
public StandardSelection(MoonlightController controller)
{
Controller = controller;
HandleGroups = new Dictionary<UIElement, IHandleGroup>();
undo = new UndoGroup();
clipboard = new List<UIElement>();
}
// Undo performed
public override void OnUndoEnd()
{
base.OnUndoEnd();
RebuildSelectedObjectsList();
// We can't group with this undo level anymore
lastundogroup = UndoGroup.None;
}
public void UndoGroupWithWrongNumberOfOperations()
{
var undoStack = new Deque <IUndoableOperation>();
_textBuffer.Append('a');
undoStack.EnqueueHead(new AddCharOperation(_textBuffer, 'a'));
var undoGroup = new UndoGroup(undoStack, 3, "Description"); // undoStack has 1 element but we use 3!
undoGroup.Undo();
Assert.AreEqual(0, _textBuffer.Length);
}
internal void EndGroup()
{
UndoGroup group = __UndoGroup;
__UndoGroup = null;
if (!group.IsEmptyAction())
{
PushUndoAction(group);
}
}
public SelectionTool(MoonlightController controller)
: base(controller)
{
SelectionRect = new Rectangle();
SelectionRect.Opacity = 0.2;
SelectionRect.Fill = new SolidColorBrush(Colors.Blue);
SelectionRect.Stroke = new SolidColorBrush(Colors.Black);
SelectionRect.StrokeThickness = 1.0;
SelectionRect.SetValue(Canvas.ZIndexProperty, int.MaxValue);
undo = new UndoGroup();
}
// TODO: this should be changed with SL 2.0 custom properties
public static IDescriptor CreateDescriptor(UIElement element, UndoGroup group)
{
if (element is TextBlock)
return new TextBlockDescriptor(element as TextBlock, group);
if (element is Line)
return new LineDescriptor(element as Line, group);
if (element is Polyline)
return new PolyLineDescriptor(element as Polyline, group);
if (element is Path)
return new PathDescriptor(element as Path, group);
return new StandardDescriptor(element, group);
}
// This creates an undo, when only a single selection is made
// When a multi-selection is made, the undo is created by the PreAction function
public int CreateUndo(string description, UndoGroup group, int grouptag)
{
if (!undocreated)
{
undocreated = true;
if (singleselection)
{
return(General.Map.UndoRedo.CreateUndo(description, this, (int)group, grouptag));
}
else
{
return(General.Map.UndoRedo.CreateUndo(description, this, (int)UndoGroup.None, 0));
}
}
return(0);
}
// This is called before an action is performed
public void PreAction(UndoGroup multiselectionundogroup)
{
actionresult = new VisualActionResult();
PickTargetUnlocked();
// If the action is not performed on a selected object, clear the
// current selection and make a temporary selection for the target.
if ((target.picked != null) && !target.picked.Selected && (BuilderPlug.Me.VisualModeClearSelection || (selectedobjects.Count == 0)))
{
// Single object, no selection
singleselection = true;
ClearSelection();
undocreated = false;
}
else
{
singleselection = false;
// Check if we should make a new undo level
// We don't want to do this if this is the same action with the same
// selection and the action wants to group the undo levels
if ((lastundogroup != multiselectionundogroup) || (lastundogroup == UndoGroup.None) ||
(multiselectionundogroup == UndoGroup.None) || selectionchanged)
{
// We want to create a new undo level, but not just yet
lastundogroup = multiselectionundogroup;
undocreated = false;
}
else
{
// We don't want to make a new undo level (changes will be combined)
undocreated = true;
}
}
}
public LineDescriptor(Line element, UndoGroup group)
: base(element, group)
{
line = element;
}
protected override void PushUndo()
{
Controller.UndoEngine.PushUndo(undo);
undo = new UndoGroup();
}
private void ExecutedHandler(object sender, ExecutedRoutedEventArgs e)
{
// При любой команде мержинг отменяется, мало ли что там команда навыполняла
PushUndoAction(null, false);
RichTextBox edit = (RichTextBox)sender;
if (e.Command == EditingCommands.DeletePreviousWord ||
e.Command == EditingCommands.DeleteNextWord)
{
if (!edit.Selection.IsEmpty)
{
RemoveSelection(edit);
}
else
{
int offsetFromEnd = edit.Document.ContentEnd.GetOffsetToPosition(edit.CaretPosition);
int offsetFromStart = edit.Document.ContentStart.GetOffsetToPosition(edit.CaretPosition);
TextPointer pointer = edit.CaretPosition;
if (e.Command == EditingCommands.DeletePreviousWord)
{
int resOffset = FindNextWhitespaceBackward(edit);
if (resOffset != -1)
{
TextRange range = new TextRange(
edit.Document.ContentStart.GetPositionAtOffset(resOffset),
edit.Document.ContentEnd.GetPositionAtOffset(offsetFromEnd));
PushUndoAction(new UndoBlockRemove(edit, range), true);
range.Text = "";
}
}
else if (e.Command == EditingCommands.DeleteNextWord)
{
int resOffset = FindNextWhitespaceForward(edit);
if (resOffset != -1)
{
TextRange range = new TextRange(
edit.Document.ContentStart.GetPositionAtOffset(resOffset),
edit.Document.ContentStart.GetPositionAtOffset(offsetFromStart));
PushUndoAction(new UndoBlockRemove(edit, range), true);
range.Text = "";
}
}
}
e.Handled = true;
LinksCheck(CaretPosition);
}
if (e.Command == ApplicationCommands.Cut)
{
if (!edit.Selection.IsEmpty)
{
edit.Copy();
RemoveSelection(this);
LinksCheck(CaretPosition);
}
e.Handled = true;
return;
}
if (e.Command == ApplicationCommands.Paste)
{
if (!Clipboard.ContainsData(DataFormats.Rtf) && !Clipboard.ContainsData(DataFormats.Text))
{
e.Handled = true;
return;
}
var undoGroup = new UndoGroup();
// Удалить старое содержимое
if (!edit.Selection.IsEmpty)
{
FormatUndo undoFormat = new FormatUndo(edit.Document, edit.Selection, edit);
undoGroup.Add(undoFormat);
edit.Selection.Text = "";
undoFormat.UpdateSelectionOffsets(edit, edit.Selection);
}
int offsetStart = edit.Document.ContentStart.GetOffsetToPosition(edit.Selection.Start);
int offsetEnd = edit.Document.ContentEnd.GetOffsetToPosition(edit.Selection.End);
var undoPaste = new UndoPaste(edit, offsetStart, offsetEnd);
bool wasError = false;
if (Clipboard.ContainsData(DataFormats.Rtf))
{
try
{
var rtfStream = MemoryStreamFromClipboard();
edit.Selection.Load(rtfStream, DataFormats.Rtf);
}
catch
{
wasError = true;
}
}
else if (Clipboard.ContainsData(DataFormats.Text))
{
edit.Selection.Text = (string)Clipboard.GetData(DataFormats.Text);
}
// Если была ошибка добавления текста, то
if (wasError == false)
{
undoGroup.Add(undoPaste);
PushUndoAction(undoGroup, true);
edit.CaretPosition = edit.Selection.End;
}
// Проверить, все ли линки на месте
LinksCheck(CaretPosition);
// Обновить хендлеры у новых ссылок (которые могли прийти с клипбоардом)
Links_Update();
e.Handled = true;
return;
}
if (e.Command == EditingCommands.AlignCenter ||
e.Command == EditingCommands.AlignJustify ||
e.Command == EditingCommands.AlignLeft ||
e.Command == EditingCommands.AlignRight ||
e.Command == EditingCommands.IncreaseIndentation ||
e.Command == EditingCommands.TabBackward ||
e.Command == EditingCommands.TabForward ||
e.Command == EditingCommands.ToggleNumbering ||
e.Command == EditingCommands.ToggleSubscript ||
e.Command == EditingCommands.ToggleSuperscript)
{
e.Handled = true;
return;
}
//e.Command == EditingCommands.ToggleUnderline
if (e.Command == EditingCommands.IncreaseFontSize ||
e.Command == EditingCommands.DecreaseFontSize ||
e.Command == EditingCommands.ToggleBold ||
e.Command == EditingCommands.ToggleItalic ||
e.Command == EditingCommands.ToggleUnderline ||
e.Command == OutlinerCommands.ToggleCrossed)
{
if (!edit.Selection.IsEmpty)
{
var bu = new FormatUndo(edit.Document, edit.Selection, edit);
PushUndoAction(bu, true);
if (e.Command == EditingCommands.ToggleBold)
{
IsSelectionBold = !IsSelectionBold;
}
else if (e.Command == EditingCommands.ToggleItalic)
{
IsSelectionItalic = !IsSelectionItalic;
}
else if (e.Command == EditingCommands.ToggleUnderline)
{
IsSelectionUnderlined = !IsSelectionUnderlined;
}
else if (e.Command == OutlinerCommands.ToggleCrossed)
{
IsSelectionStrikethrough = !IsSelectionStrikethrough;
}
/*if (e.Command == OutlinerCommands.ToggleCrossed)
* IsSelectionStrikethrough = !IsSelectionStrikethrough;*/
bu.UpdateSelectionOffsets(edit, edit.Selection);
e.Handled = true;
}
else
{
TextRange paragraphRange;
if (edit.CaretPosition.Paragraph != null)
{
paragraphRange = new TextRange(edit.CaretPosition.Paragraph.ContentStart,
edit.CaretPosition.Paragraph.ContentEnd);
}
else
{
paragraphRange = new TextRange(edit.Document.ContentStart,
edit.Document.ContentEnd);
}
FontProperties fontProps = new FontProperties(paragraphRange);
var bu = new FormatUndo(edit.Document,
paragraphRange,
edit);
int caretPositionStart = edit.Document.ContentStart.GetOffsetToPosition(edit.CaretPosition);
int caretPositionEnd = edit.Document.ContentEnd.GetOffsetToPosition(edit.CaretPosition);
if (e.Command == EditingCommands.ToggleBold)
{
IsSelectionBold = !IsSelectionBold;
}
else if (e.Command == EditingCommands.ToggleItalic)
{
IsSelectionItalic = !IsSelectionItalic;
}
else if (e.Command == EditingCommands.ToggleUnderline)
{
IsSelectionUnderlined = !IsSelectionUnderlined;
}
else if (e.Command == OutlinerCommands.ToggleCrossed)
{
IsSelectionStrikethrough = !IsSelectionStrikethrough;
}
int newCaretPositionStart = edit.Document.ContentStart.GetOffsetToPosition(edit.CaretPosition);
int newCaretPositionEnd = edit.Document.ContentEnd.GetOffsetToPosition(edit.CaretPosition);
string paragraphRangeText = paragraphRange.Text;
if (caretPositionStart != newCaretPositionStart || caretPositionEnd != newCaretPositionEnd ||
!fontProps.HasSameStyle(paragraphRange))
{
PushUndoAction(bu, true);
}
e.Handled = true;
}
return;
}
if (e.Command == EditingCommands.Backspace ||
e.Command == EditingCommands.Delete)
{
if (!edit.Selection.IsEmpty)
{
RemoveSelection(edit);
LinksCheck(CaretPosition);
e.Handled = true;
}
else
{
TextPointer right = edit.Selection.Start;
TextPointer left = right.GetNextInsertionPosition(LogicalDirection.Backward);
if (e.Command == EditingCommands.Delete)
{
left = edit.Selection.Start;
right = right.GetNextInsertionPosition(LogicalDirection.Forward);
}
if (right != null && left != null)
{
TextRange range = new TextRange(right, left);
if (range.Text != "")
{
var bu = new UndoBlockRemove(edit, range);
PushUndoAction(bu, true);
range.ClearAllProperties();
range.Text = "";
bu.UpdateOffsets(edit, range);
}
}
LinksCheck(CaretPosition);
e.Handled = true;
}
}
}
private void PushUndo()
{
Controller.UndoEngine.PushUndo(undo);
undo = new UndoGroup();
}
public PolyLineDescriptor(Polyline element, UndoGroup group)
: base(element, group)
{
polyline = element;
}
public PathDescriptor(Path element, UndoGroup group)
: base(element, group)
{
path = element;
}
public AbstractHandle(MoonlightController controller, IHandleGroup group)
: base()
{
Group = group;
//inner = controller.GtkSilver.InitializeFromXaml(GetXaml(), this);
//Application.LoadComponent(this, new Uri("ellipse.xml", UriKind.Relative));
Content = CreateContent();
Content.MouseLeftButtonDown += MouseStart;
Content.MouseLeftButtonUp += MouseEnd;
Content.MouseMove += MouseStep;
highlight_fill = new SolidColorBrush(Colors.Red);
normal_fill = (Brush) Content.GetValue(Shape.FillProperty);
Content.MouseEnter += delegate {
Content.SetValue(Shape.FillProperty, highlight_fill);
};
Content.MouseLeave += delegate {
Content.SetValue(Shape.FillProperty, normal_fill);
};
SetValue(Canvas.ZIndexProperty, int.MaxValue);
transforms = new TransformGroup();
scaleTransform = new ScaleTransform();
transforms.Children.Add(scaleTransform);
Content.SetValue(UIElement.RenderTransformOriginProperty, new Point(0.5, 0.5));
Content.SetValue(UIElement.RenderTransformProperty, transforms);
undo_group = new UndoGroup();
Controller.ZoomChanged += delegate {
Update();
};
}
public void UndoGroupWithWrongNumberOfOperations()
{
var undoStack = new Deque<IUndoableOperation>();
_textBuffer.Append('a');
undoStack.EnqueueHead(new AddCharOperation(_textBuffer, 'a'));
var undoGroup = new UndoGroup(undoStack, 3, "Description"); // undoStack has 1 element but we use 3!
undoGroup.Undo();
Assert.AreEqual(0, _textBuffer.Length);
}
public AbstractLineDescriptor(UIElement element, UndoGroup group)
: base(element, group)
{
}
public TextBlockDescriptor(TextBlock element, UndoGroup group)
: base(element, group)
{
text_block = element;
}
internal void StartGroup()
{
__UndoGroup = new UndoGroup();
}
