//Modify.Choijh.2021.05.27.Insert code Image fit used Mouse Right btn.Start...
private void Border_PreviewMouseRightButtonDown(object sender, MouseEventArgs e)
{
var pos = e.GetPosition(sender as IInputElement);
_initPos = pos;
_offset = new Point(_viewModel.ZoomService.TranslateX, _viewModel.ZoomService.TranslateY);
_dragMode = EDragMode.Panning;
}
private void Border_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
var pos = e.GetPosition(sender as IInputElement);
_dragMode = EDragMode.Calc;
if (_viewModel.ZoomService.Scale == 0)
{
return;
}
_viewModel.StartPt = new Point(
(pos.X - _viewModel.ZoomService.TranslateX) / _viewModel.ZoomService.Scale,
(pos.Y - _viewModel.ZoomService.TranslateY) / _viewModel.ZoomService.Scale);
_viewModel.EndPt = _viewModel.StartPt;
_viewModel.IsCalcMode = true;
}
private void Border_MouseLeave(object sender, MouseEventArgs e)
{
_dragMode = EDragMode.None;
_viewModel.IsCalcMode = false;
}
private void Border_PreviewMouseUp(object sender, MouseButtonEventArgs e)
{
_dragMode = EDragMode.None;
_viewModel.IsCalcMode = false;
}