示例#1
0
        private void canvas1_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            // pri kliknuti si ulozime poziciu bodu
            //Point point = e.GetPosition(null);

            // pri double kliku pridavame objekty
            switch (e.ClickCount)
            {
            case 2:
                var cursorPosition     = CursorPosition(e);
                var cursorPositionInWA = TransformCoordinates.PlotAreaToWorldArea(cursorPosition, _plotArea, _worldArea);
                if (_selectedSpline != null)
                {
                    if (_selectedSpline is BSpline)
                    {
                        //_selectedBSpline = (BSpline) _selectedSpline;
                        //var knots = _selectedBSpline.KnotsWithoutServiceKnots().ToList();
                        //var idx = ArrayMyUtils.FindFirstIndexInSortedListWhichValueIsBiggerThanDesiredNumber(knots, cursorPositionInWA.X);
                        //if (idx != -1)
                        //{
                        //    knots.Insert(idx, cursorPositionInWA.X);
                        //}
                        //else
                        //{
                        //    knots.Add(cursorPositionInWA.X);
                        //}
                    }
                    else if (_selectedSpline is HermiteSpline)
                    {
                        _selectedHermiteSpline = (HermiteSpline)_selectedSpline;

                        for (int i = 0; i < _selectedHermiteSpline.LinesOfSpline.Count; i++)
                        {
                            var b = canvas1.Children.Remove(_selectedHermiteSpline.LinesOfSpline[i]);
                            if (!b)
                            {
                                haha.Text = "cannot remove line";
                            }
                            else
                            {
                                haha.Text = "line removed";
                            }
                        }

                        var knots         = _selectedHermiteSpline.Knots;
                        var controlPoints = _selectedHermiteSpline.ControlPoints;
                        var derivations   = _selectedHermiteSpline.Derivations;

                        var idx = ArrayMyUtils.FindFirstIndexInSortedListWhichValueIsBiggerThanDesiredNumber(knots, cursorPositionInWA.X);

                        if (idx != -1)
                        {
                            knots.Insert(idx, cursorPositionInWA.X);
                            controlPoints.Insert(idx, cursorPositionInWA.Y);
                            derivations.Insert(idx, 0);
                        }
                        else
                        {
                            knots.Add(cursorPositionInWA.X);
                            controlPoints.Add(cursorPositionInWA.Y);
                            derivations.Add(0);
                        }

                        //_selectedHermiteSpline.Knots = knots;
                        //_selectedHermiteSpline.ControlPoints = controlPoints;
                        //_selectedHermiteSpline.Derivations = derivations;
                        //_canvasUtilities.TotalRefreshHermiteSplineInCanvas(_selectedHermiteSpline, canvas1, _engine);
                        //_canvasUtilities.RemoveInCanvas(canvas1, _selectedHermiteSpline.LinesOfSpline);
                        //_canvasUtilities.RemoveInCanvas(canvas1, _selectedHermiteSpline.DerivationEllipses);
                        //_canvasUtilities.RemoveInCanvas(canvas1, _selectedHermiteSpline.DragEllipses);
                        //_hermiteSplineList.Remove(_selectedHermiteSpline);


                        var spline = _engine.InteractiveHermiteSpline(_selectedHermiteSpline.Knots.ToArray(), _selectedHermiteSpline.ControlPoints.ToArray(), _selectedHermiteSpline.Derivations.ToArray());
                        _hermiteSplineList.Add(spline);
                    }
                    else if (_selectedSpline is ClampedSpline)
                    {
                    }
                    else if (_selectedSpline is GlobalBSpline)
                    {
                    }
                }


                break;

            // hybanie s objektami
            case 1:
                var elements = VisualTreeHelper.FindElementsInHostCoordinates(e.GetPosition(null), (UIElement)sender) as List <UIElement>;
                for (int i = 0; i < elements.Count; i++)
                {
                    if (elements[i] is Ellipse)
                    {
                        _selectedEllipse = elements[i];

                        for (int j = 0; j < _bSplineList.Count; j++)
                        {
                            _selectedBSpline   = _bSplineList[j];
                            _selectedSpline    = _selectedBSpline;
                            _changedPointIndex = 0;
                            //if (_selectedBSpline.FunctionValues == null)
                            //{
                            var controlPointsCount = _selectedBSpline.ControlPoints.Count();
                            while (_changedPointIndex < controlPointsCount)
                            {
                                if (_selectedEllipse.Equals(_selectedBSpline.DragEllipses[_changedPointIndex]))
                                {
                                    haha.Text += " CP: " + _changedPointIndex + "   ";
                                    //_changedKnotPos = _changedPointIndex + 1;
                                    if (_changedPointIndex == 0)
                                    {
                                        _leftEllipseX  = -1;
                                        _rightEllipseX = (double)_selectedBSpline.DragEllipses[_changedPointIndex + 1].GetValue(Canvas.LeftProperty);
                                    }
                                    else if (_changedPointIndex == _selectedBSpline.DragEllipses.Count - 1)
                                    {
                                        _leftEllipseX  = (double)_selectedBSpline.DragEllipses[_changedPointIndex - 1].GetValue(Canvas.LeftProperty);
                                        _rightEllipseX = TransformCoordinates.WorldAreaToPlotAreaX(_selectedBSpline.Knots[_changedPointIndex + 2] - DEFAULT_REDRAWING_PRECISION, _plotArea, _worldArea);
                                    }
                                    else
                                    {
                                        _leftEllipseX  = (double)_selectedBSpline.DragEllipses[_changedPointIndex - 1].GetValue(Canvas.LeftProperty);
                                        _rightEllipseX = (double)_selectedBSpline.DragEllipses[_changedPointIndex + 1].GetValue(Canvas.LeftProperty);
                                    }
                                    SELECTED_ITEM_TYPE = SelectedDragItem.BSplineEllipse;
                                    _isMoving          = true;
                                    _changedKnotPos    = _changedPointIndex + 1;

                                    // _selectedSpline = _redrawedBSpline;
                                    haha.Text += " Knot: " + _changedKnotPos + "   ";
                                    //goto DRAG; // preskocime nasledujuci for-cyklus
                                    _engine.DrawPrecision = RedrawingPrecision;
                                    _selectedEllipse.CaptureMouse();
                                    return;
                                }
                                _changedPointIndex++;
                            }
                            //}
                            //else
                            //{
                        }

                        for (int j = 0; j < _globalBSplineList.Count; j++)
                        {
                            _selectedGlobalBSpline = _globalBSplineList[j];
                            _selectedSpline        = _selectedGlobalBSpline;
                            _changedPointIndex     = 0;
                            var redrawedGlobalBSplineCount = _selectedGlobalBSpline.ControlPoints.Count();

                            if (_selectedEllipse.Equals(_selectedGlobalBSpline.LeftDerivationEllipse))
                            {
                                SELECTED_ITEM_TYPE    = SelectedDragItem.GBSplineLeftDerEllipse;
                                _isMoving             = true;
                                _changedKnotPos       = _changedPointIndex;
                                _engine.DrawPrecision = RedrawingPrecision;
                                _selectedEllipse.CaptureMouse();
                                return;
                            }
                            else if (_selectedEllipse.Equals(_selectedGlobalBSpline.RightDerivationEllipse))
                            {
                                SELECTED_ITEM_TYPE    = SelectedDragItem.GBSplineRightDerEllipse;
                                _isMoving             = true;
                                _changedKnotPos       = _changedPointIndex;
                                _engine.DrawPrecision = RedrawingPrecision;
                                _selectedEllipse.CaptureMouse();
                                return;
                            }
                            else
                            {
                                while (_changedPointIndex < _selectedGlobalBSpline.FunctionValues.Count())
                                {
                                    if (_selectedEllipse.Equals(_selectedGlobalBSpline.DragEllipses[_changedPointIndex]))
                                    {
                                        //haha.Text += " CP: " + _changedPointIndex + "   ";
                                        SELECTED_ITEM_TYPE = SelectedDragItem.GBSplineEllipse;

                                        // _selectedSpline = _redrawedBSpline;
                                        // haha.Text += " Knot: " + _changedKnotPos + "   ";
                                        //  goto DRAG; // preskocime nasledujuci for-cyklus

                                        _isMoving             = true;
                                        _changedKnotPos       = _changedPointIndex;
                                        _engine.DrawPrecision = RedrawingPrecision;
                                        _selectedEllipse.CaptureMouse();
                                        return;
                                    }
                                    _changedPointIndex++;
                                }
                            }
                        }

                        for (int j = 0; j < _clampedSplineList.Count; j++)
                        {
                            _selectedClampedSpline = _clampedSplineList[j];
                            _selectedSpline        = _selectedClampedSpline;
                            int redrawedCSplineCount = _selectedClampedSpline.ControlPoints.Count();
                            _changedPointIndex = 0;
                            if (_selectedEllipse.Equals(_selectedClampedSpline.LeftDerivationEllipse))
                            {
                                SELECTED_ITEM_TYPE = SelectedDragItem.CSplineLeftDerEllipse;
                                _isMoving          = true;
                                //_selectedSpline = _redrawedHermiteSpline;
                                // goto DRAG;
                                _engine.DrawPrecision = RedrawingPrecision;
                                _selectedEllipse.CaptureMouse();
                                return;
                            }
                            else if (_selectedEllipse.Equals(_selectedClampedSpline.RightDerivationEllipse))
                            {
                                SELECTED_ITEM_TYPE = SelectedDragItem.CSplineRightDerEllipse;
                                _isMoving          = true;
                                //_selectedSpline = _redrawedHermiteSpline;
                                // goto DRAG;
                                _engine.DrawPrecision = RedrawingPrecision;
                                _selectedEllipse.CaptureMouse();
                                return;
                            }
                            else
                            {
                                while (_changedPointIndex < redrawedCSplineCount)
                                {
                                    if (_selectedEllipse.Equals(_selectedClampedSpline.DragEllipses[_changedPointIndex]))
                                    {
                                        //haha.Text += _changedPointIndex + "   ";

                                        SELECTED_ITEM_TYPE = SelectedDragItem.CSplineEllipse;
                                        _isMoving          = true;
                                        //_selectedSpline = _redrawedHermiteSpline;
                                        // goto DRAG;
                                        _engine.DrawPrecision = RedrawingPrecision;
                                        _selectedEllipse.CaptureMouse();
                                        return;
                                    }
                                    _changedPointIndex++;
                                    //   }
                                }
                            }
                        }

                        for (int j = 0; j < _hermiteSplineList.Count; j++)
                        {
                            _selectedHermiteSpline = _hermiteSplineList[j];
                            _selectedSpline        = _selectedHermiteSpline;
                            int redrawedHSplineControlPointsCount = _selectedHermiteSpline.ControlPoints.Count();
                            _changedPointIndex = 0;
                            while (_changedPointIndex < redrawedHSplineControlPointsCount)
                            {
                                if (_selectedEllipse.Equals(_selectedHermiteSpline.DragEllipses[_changedPointIndex]))
                                {
                                    haha.Text += _changedPointIndex + "   ";
                                    if (_changedPointIndex == 0)
                                    {
                                        _leftEllipseX  = -1;
                                        _rightEllipseX = (double)_selectedHermiteSpline.DragEllipses[_changedPointIndex + 1].GetValue(Canvas.LeftProperty);
                                    }
                                    else if (_changedPointIndex == redrawedHSplineControlPointsCount - 1)
                                    {
                                        _leftEllipseX  = (double)_selectedHermiteSpline.DragEllipses[_changedPointIndex - 1].GetValue(Canvas.LeftProperty);
                                        _rightEllipseX = -1;
                                    }
                                    else
                                    {
                                        _leftEllipseX  = (double)_selectedHermiteSpline.DragEllipses[_changedPointIndex - 1].GetValue(Canvas.LeftProperty);
                                        _rightEllipseX = (double)_selectedHermiteSpline.DragEllipses[_changedPointIndex + 1].GetValue(Canvas.LeftProperty);
                                    }
                                    SELECTED_ITEM_TYPE = SelectedDragItem.HSplineEllipse;
                                    _isMoving          = true;
                                    //_selectedSpline = _redrawedHermiteSpline;
                                    // goto DRAG;
                                    _engine.DrawPrecision = RedrawingPrecision;
                                    _selectedEllipse.CaptureMouse();
                                    return;
                                }
                                else if (_selectedEllipse.Equals(_selectedHermiteSpline.DerivationEllipses[_changedPointIndex]))
                                {
                                    SELECTED_ITEM_TYPE    = SelectedDragItem.HSplineDerEllipse;
                                    _isMoving             = true;
                                    _engine.DrawPrecision = RedrawingPrecision;
                                    _selectedEllipse.CaptureMouse();
                                    return;
                                }
                                _changedPointIndex++;
                                //   }
                            }
                        }


                        //DRAG:
                        //_selectedEllipse.CaptureMouse();
                    }
                }

                break;
            }
        }