/// <summary>
/// Производим смещение координат вершин линии
/// </summary>
private void MoveFigure()
{
if (_moveToPoint == default(Point) || _moveFromPoint == default(Point) || _currentPolyline == null)
{
return;
}
var deltaX = _moveToPoint.X - _moveFromPoint.X;
var deltaY = _moveToPoint.Y - _moveFromPoint.Y;
List <Point> tmpListPoint = new List <Point>();
foreach (Point pt in _currentPolyline.Points)
{
tmpListPoint.Add(new Point(pt.X + deltaX, pt.Y + deltaY));
}
_currentPolyline.Points.Clear();
foreach (Point pt in tmpListPoint)
{
_currentPolyline.Points.Add(new Point(pt.X, pt.Y));
}
tmpListPoint = null;
_moveToPoint = default(Point);
_moveFromPoint = default(Point);
ClearPolylineBindings(_currentPolyline);
_currentPolyline = null;
ClearMarkers();
_viewModel.DrawMode = DrawMode.EditFigure;
DrawTable.InvalidateVisual();
}
/// <summary>
/// Сброс всех переменных, используемых для выделения линии
/// </summary>
private void ResetAllSelected()
{
ClearMarkers();
ClearPolylineBindings(_currentPolyline);
_currentPolyline = null;
_currentPoint = default(Point);
_pointIndex = null;
_viewModel.DrawMode = DrawMode.None;
_marker = null;
_viewModel.AddNewLineIsChecked = false;
_viewModel.EditLineIsChecked = false;
DrawTable.InvalidateVisual();
}
/// <summary>
/// Удаление ломаной линии
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnDelLine_Click(object sender, RoutedEventArgs e)
{
if (_viewModel.DrawMode != DrawMode.EditFigure)
{
return;
}
if (_currentPolyline == null)
{
return;
}
ClearMarkers();
DrawTable.Children.Remove(_currentPolyline);
_currentPolyline = null;
_pointIndex = null;
_marker = null;
DrawTable.InvalidateVisual();
}
/// <summary>
/// Обработчик кнопки удаления вершины ломаной линии
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnDelVertex_Click(object sender, RoutedEventArgs e)
{
//Удаление вершин ломаной линии
if (_viewModel.DrawMode != DrawMode.EditFigure)
{
return;
}
if (_pointIndex == null || _marker == null || _currentPolyline == null)
{
return;
}
_currentPolyline.Points.RemoveAt(_pointIndex.Value);
_marker.Height = 0;
_marker.Width = 0;
_pointIndex = null;
_marker = null;
DrawTable.InvalidateVisual();
}
private void DrawTable_MouseMove(object sender, MouseEventArgs e)
{
//Отрисовка перемещения вершины ломаной линии при добавлении и при редактировании вершин
if ((_viewModel.DrawMode == DrawMode.AddNewFigure || _viewModel.DrawMode == DrawMode.MoveVertex) &&
_currentPoint != null &&
_currentPolyline != null &&
_currentPolyline.Points.Count > 1)
{
_currentPolyline.Points.RemoveAt(_pointIndex.Value);
_currentPoint.X = e.GetPosition(DrawTable).X;
_currentPoint.Y = e.GetPosition(DrawTable).Y;
_currentPolyline.Points.Insert(_pointIndex.Value, _currentPoint);
if (_marker != null)
{
Canvas.SetLeft(_marker, _currentPoint.X - 5);
Canvas.SetTop(_marker, _currentPoint.Y - 5);
}
DrawTable.InvalidateVisual();
}
}
private void BtnLoadFromFile_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog myDialog = new OpenFileDialog();
myDialog.Filter = "Векторные рисунки(*.XAML)|*.XAML" + "|Все файлы (*.*)|*.* ";
myDialog.CheckFileExists = true;
myDialog.Multiselect = true;
if (myDialog.ShowDialog() == true)
{
DrawTable.Children.Clear();
_viewModel.CurrentFileName = myDialog.FileName;
using (FileStream fs = File.Open(_viewModel.CurrentFileName, FileMode.Open, FileAccess.Read))
{
Canvas FromFile = XamlReader.Load(fs) as Canvas;
foreach (Polyline pl in FromFile.Children)
{
if (pl.Points.Count != 0)
{
if (pl.Stroke != null)
{
_viewModel.CurrentPickColor = ((SolidColorBrush)(pl.Stroke)).Color;
}
_viewModel.CurrentThikness = DoubleToThikness(pl.StrokeThickness);
AddNewLine();
foreach (Point pt in pl.Points)
{
_currentPolyline.Points.Add(pt);
}
}
}
}
DrawTable.InvalidateVisual();
ResetAllSelected();
}
}
