private void CheckLine()
{
if (_editor.SelectedItems != null && _editor.SelectedItems.Count == 1 && _editor.SelectedItems[0] is Helios.Controls.LineDecoration)
{
if (!_isline)
{
_children.Remove(_bottomLeft);
_children.Remove(_bottomRight);
_topRight.Cursor = Cursors.Cross;
_topLeft.Cursor = Cursors.Cross;
}
Helios.Controls.LineDecoration line = _editor.SelectedItems[0] as Helios.Controls.LineDecoration;
_tempLine = new Helios.Controls.LineDecoration();
_tempLine.Clone(line);
_isline = true;
}
else
{
if (_isline)
{
_children.Add(_bottomLeft);
_children.Add(_bottomRight);
_topRight.Cursor = Cursors.SizeNESW;
_topLeft.Cursor = Cursors.SizeNWSE;
}
_tempLine = null;
_isline = false;
}
}
private void HandleDragDelta(object sender, DragDeltaEventArgs args)
{
_editor.SnapManager.ForceProportions = Keyboard.Modifiers.HasFlag(ModifierKeys.Shift);
_editor.SnapManager.IgnoreTargets = Keyboard.Modifiers.HasFlag(ModifierKeys.Control);
_editor.SnapManager.DragVector = new Vector(args.HorizontalChange, args.VerticalChange);
if (_isline)
{
Helios.Controls.LineDecoration line = _editor.SelectedItems[0] as Helios.Controls.LineDecoration;
if (_editor.SnapManager.Action == SnapAction.LineStart)
{
_tempLine.Start = GetLineDragPoint(_tempLine.End, _editor.SnapManager.NewLocation);
}
else if (_editor.SnapManager.Action == SnapAction.LineEnd)
{
_tempLine.End = GetLineDragPoint(_tempLine.Start, _editor.SnapManager.NewLocation);
}
}
InvalidateVisual();
}
void TopRight_DragStarted(object sender, DragStartedEventArgs e)
{
_editor.LoadSnapTargets(true);
if (_isline)
{
Helios.Controls.LineDecoration line = _editor.SelectedItems[0] as Helios.Controls.LineDecoration;
_editor.SnapManager.Size = new Size(1, 1);
_editor.SnapManager.Location = line.End;
_editor.SnapManager.Action = SnapAction.LineEnd;
_tempLine.Clone(line);
line.IsHidden = true;
}
else
{
_editor.SnapManager.Action = SnapAction.ResizeNE;
_editor.SnapManager.Size = _editor.SelectedItems.Rectangle.Size;
_editor.SnapManager.Location = _editor.SelectedItems.Rectangle.TopLeft;
}
_editor.SnapManager.DragVector = new Vector(0, 0);
_editor.Focus();
}
protected override Size ArrangeOverride(Size finalSize)
{
Rect selectionRect = _editor.SelectedItems.Rectangle;
selectionRect.Scale(_editor.ZoomFactor, _editor.ZoomFactor);
if (_isline)
{
Helios.Controls.LineDecoration line = _editor.SelectedItems[0] as Helios.Controls.LineDecoration;
_topLeft.Arrange(new Rect((line.Start.X - ResizeRadius) * _editor.ZoomFactor, (line.Start.Y - ResizeRadius) * _editor.ZoomFactor, ResizeDiameter, ResizeDiameter));
_topRight.Arrange(new Rect((line.End.X - ResizeRadius) * _editor.ZoomFactor, (line.End.Y - ResizeRadius) * _editor.ZoomFactor, ResizeDiameter, ResizeDiameter));
}
else
{
_topLeft.Arrange(new Rect(selectionRect.Left - ResizeRadius, selectionRect.Top - ResizeRadius, ResizeDiameter, ResizeDiameter));
_topRight.Arrange(new Rect(selectionRect.Right - ResizeRadius, selectionRect.Top - ResizeRadius, ResizeDiameter, ResizeDiameter));
_bottomLeft.Arrange(new Rect(selectionRect.Left - ResizeRadius, selectionRect.Bottom - ResizeRadius, ResizeDiameter, ResizeDiameter));
_bottomRight.Arrange(new Rect(selectionRect.Right - ResizeRadius, selectionRect.Bottom - ResizeRadius, ResizeDiameter, ResizeDiameter));
}
// Return the final size.
return(finalSize);
}
void HandleDragCompleted(object sender, DragCompletedEventArgs e)
{
ConfigManager.UndoManager.StartBatch();
if (_editor.SnapManager.Action == SnapAction.LineStart || _editor.SnapManager.Action == SnapAction.LineEnd)
{
Helios.Controls.LineDecoration line = _editor.SelectedItems[0] as Helios.Controls.LineDecoration;
line.Start = _tempLine.Start;
line.End = _tempLine.End;
line.IsHidden = false;
}
else
{
double scaleX = Math.Max(_editor.SnapManager.NewSize.Width / _editor.SelectedItems.Rectangle.Size.Width, 0d);
double scaleY = Math.Max(_editor.SnapManager.NewSize.Height / _editor.SelectedItems.Rectangle.Size.Height, 0d);
ScaleVisuals(_editor.SelectedItems, _editor.SelectedItems.Rectangle, _editor.SnapManager.LocationOffset, scaleX, scaleY, _editor.SnapManager.ForceProportions);
}
ConfigManager.UndoManager.CloseBatch();
_editor.SnapManager.Action = SnapAction.None;
InvalidateVisual();
}
protected override void OnRender(System.Windows.Media.DrawingContext drawingContext)
{
if (_editor.SelectedItems.Count > 0)
{
Pen rectPen = _drawFocus ? SelectionRectPen : SelectionRectPenNoFocus;
Brush circleBrush = _drawFocus ? SelectionResizeBrush : SelectionResizeBrushNoFocus;
if (_isline)
{
Point start;
Point end;
drawingContext.PushTransform(new ScaleTransform(_editor.ZoomFactor, _editor.ZoomFactor));
if (_editor.SnapManager.Action == SnapAction.LineStart || _editor.SnapManager.Action == SnapAction.LineEnd)
{
drawingContext.PushTransform(new TranslateTransform(_tempLine.Left, _tempLine.Top));
_tempLine.Renderer.Render(drawingContext);
drawingContext.Pop();
start = _tempLine.Start;
end = _tempLine.End;
}
else
{
Helios.Controls.LineDecoration line = _editor.SelectedItems[0] as Helios.Controls.LineDecoration;
start = line.Start;
end = line.End;
if (_editor.SnapManager.Action == SnapAction.Move)
{
start += _editor.SnapManager.LocationOffset;
end += _editor.SnapManager.LocationOffset;
_tempLine.Clone(line);
drawingContext.PushTransform(new TranslateTransform(_tempLine.Left + _editor.SnapManager.LocationOffset.X, _tempLine.Top + _editor.SnapManager.LocationOffset.Y));
_tempLine.Renderer.Render(drawingContext);
drawingContext.Pop();
}
}
drawingContext.Pop();
start.X *= _editor.ZoomFactor;
start.Y *= _editor.ZoomFactor;
end.X *= _editor.ZoomFactor;
end.Y *= _editor.ZoomFactor;
drawingContext.DrawEllipse(circleBrush, rectPen, start, ResizeRadius, ResizeRadius);
drawingContext.DrawEllipse(circleBrush, rectPen, end, ResizeRadius, ResizeRadius);
}
else
{
foreach (HeliosVisual visual in _editor.SelectedItems)
{
Rect visualRect = visual.DisplayRectangle;
visualRect.Scale(_editor.ZoomFactor, _editor.ZoomFactor);
drawingContext.DrawRectangle(null, SelectionBorderPen, visualRect);
}
Rect selectionRect = (_editor.SnapManager.Action != SnapAction.None && _editor.SnapManager.Action != SnapAction.Drop && _editor.SnapManager.IsValidDrag) ? _editor.SnapManager.NewRectangle : _editor.SelectedItems.Rectangle;
selectionRect.Scale(_editor.ZoomFactor, _editor.ZoomFactor);
drawingContext.DrawRectangle(null, rectPen, selectionRect);
drawingContext.DrawEllipse(circleBrush, rectPen, selectionRect.TopLeft, ResizeRadius, ResizeRadius);
drawingContext.DrawEllipse(circleBrush, rectPen, selectionRect.TopRight, ResizeRadius, ResizeRadius);
drawingContext.DrawEllipse(circleBrush, rectPen, selectionRect.BottomLeft, ResizeRadius, ResizeRadius);
drawingContext.DrawEllipse(circleBrush, rectPen, selectionRect.BottomRight, ResizeRadius, ResizeRadius);
}
}
}
