private void AdornerRectangle_OnPreviewMouseMove(object sender, MouseEventArgs e)
{
if (_istextboxEditing)
{
return;
}
if (IsDrawing && e.LeftButton == MouseButtonState.Pressed)
{
AdornerRectangle.CaptureMouse();
Point mousePoint = new Point(Mouse.GetPosition(AdornerRectangle).X, Mouse.GetPosition(AdornerRectangle).Y);
if (_selectedElement != null)
{
MoveElement(_selectedElement, mousePoint);
return;
}
if (rectbtn.IsChecked.HasValue && rectbtn.IsChecked.Value)
{
DrawRect(mousePoint);
}
if (criclebtn.IsChecked.HasValue && criclebtn.IsChecked.Value)
{
DrawEllipse(mousePoint);
}
if (penbtn.IsChecked.HasValue && penbtn.IsChecked.Value)
{
DrawPath(mousePoint);
}
}
}
private void AdornerRectangle_OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
AdornerRectangle.Focus();
if (IsDrawing)
{
Point mousePoint = e.GetPosition(AdornerRectangle);
//_selectedElement = AdornerRectangle.Children.Cast<UIElement>().FirstOrDefault(x =>
// x.TransformToVisual(AdornerRectangle)
// .TransformBounds(new Rect(x.RenderSize)).Contains(mousePoint));
if (_selectedElement != null)
{
return;
}
if (rectbtn.IsChecked.HasValue && rectbtn.IsChecked.Value)
{
InitRect();
}
else if (criclebtn.IsChecked.HasValue && criclebtn.IsChecked.Value)
{
InitCricle();
}
else if (penbtn.IsChecked.HasValue && penbtn.IsChecked.Value)
{
InitPen();
}
else if (textbtn.IsChecked.HasValue && textbtn.IsChecked.Value)
{
InitTextbox(mousePoint);
}
}
}
private void AdornerRectangle_OnPreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
_selectedElement = null;
drawingRect = null;
drawingEllipse = null;
drawingPolyline = null;
UpdateUndoBtnEnable();
AdornerRectangle.ReleaseMouseCapture();
}