using Ink_Canvas.Helpers; using System; using System.Collections.Generic; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Ink; using System.Windows.Input; using System.Windows.Media.Animation; using MessageBox = System.Windows.MessageBox; using Point = System.Windows.Point; namespace Ink_Canvas { public partial class MainWindow : Window { #region Floating Bar Control private void ImageDrawShape_MouseUp(object sender, MouseButtonEventArgs e) { if (BorderDrawShape.Visibility == Visibility.Visible) { AnimationsHelper.HideWithSlideAndFade(BorderDrawShape); AnimationsHelper.HideWithSlideAndFade(BoardBorderDrawShape); } else { AnimationsHelper.ShowWithSlideFromBottomAndFade(BorderDrawShape); AnimationsHelper.ShowWithSlideFromBottomAndFade(BoardBorderDrawShape); } } #endregion Floating Bar Control int drawingShapeMode = 0; bool isLongPressSelected = false; // 用于存是否是“选中”状态，便于后期抬笔后不做切换到笔的处理 #region Buttons private void SymbolIconPinBorderDrawShape_MouseUp(object sender, MouseButtonEventArgs e) { if (lastBorderMouseDownObject != sender) return; ToggleSwitchDrawShapeBorderAutoHide.IsOn = !ToggleSwitchDrawShapeBorderAutoHide.IsOn; if (ToggleSwitchDrawShapeBorderAutoHide.IsOn) { ((iNKORE.UI.WPF.Modern.Controls.SymbolIcon)sender).Symbol = iNKORE.UI.WPF.Modern.Controls.Symbol.Pin; } else { ((iNKORE.UI.WPF.Modern.Controls.SymbolIcon)sender).Symbol = iNKORE.UI.WPF.Modern.Controls.Symbol.UnPin; } } object lastMouseDownSender = null; DateTime lastMouseDownTime = DateTime.MinValue; private async void Image_MouseDown(object sender, MouseButtonEventArgs e) { lastMouseDownSender = sender; lastMouseDownTime = DateTime.Now; await Task.Delay(500); if (lastMouseDownSender == sender) { lastMouseDownSender = null; var dA = new DoubleAnimation(1, 0.3, new Duration(TimeSpan.FromMilliseconds(100))); ((UIElement)sender).BeginAnimation(OpacityProperty, dA); forceEraser = true; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; if (sender == ImageDrawLine || sender == BoardImageDrawLine) { drawingShapeMode = 1; } else if (sender == ImageDrawDashedLine || sender == BoardImageDrawDashedLine) { drawingShapeMode = 8; } else if (sender == ImageDrawDotLine || sender == BoardImageDrawDotLine) { drawingShapeMode = 18; } else if (sender == ImageDrawArrow || sender == BoardImageDrawArrow) { drawingShapeMode = 2; } else if (sender == ImageDrawParallelLine || sender == BoardImageDrawParallelLine) { drawingShapeMode = 15; } isLongPressSelected = true; if (isSingleFingerDragMode) { BtnFingerDragMode_Click(BtnFingerDragMode, null); } } } private void BtnPen_Click(object sender, RoutedEventArgs e) { forceEraser = false; drawingShapeMode = 0; inkCanvas.EditingMode = InkCanvasEditingMode.Ink; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); isLongPressSelected = false; } private void BtnDrawLine_Click(object sender, EventArgs e) { if (lastMouseDownSender == sender) { forceEraser = true; drawingShapeMode = 1; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); } lastMouseDownSender = null; if (isLongPressSelected) { if (ToggleSwitchDrawShapeBorderAutoHide.IsOn) { CollapseBorderDrawShape(true); } var dA = new DoubleAnimation(1, 1, new Duration(TimeSpan.FromMilliseconds(0))); ImageDrawLine.BeginAnimation(OpacityProperty, dA); } DrawShapePromptToPen(); } private void BtnDrawDashedLine_Click(object sender, EventArgs e) { if (lastMouseDownSender == sender) { forceEraser = true; drawingShapeMode = 8; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); } lastMouseDownSender = null; if (isLongPressSelected) { if (ToggleSwitchDrawShapeBorderAutoHide.IsOn) { CollapseBorderDrawShape(true); } var dA = new DoubleAnimation(1, 1, new Duration(TimeSpan.FromMilliseconds(0))); ImageDrawDashedLine.BeginAnimation(OpacityProperty, dA); } DrawShapePromptToPen(); } private void BtnDrawDotLine_Click(object sender, EventArgs e) { if (lastMouseDownSender == sender) { forceEraser = true; drawingShapeMode = 18; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); } lastMouseDownSender = null; if (isLongPressSelected) { if (ToggleSwitchDrawShapeBorderAutoHide.IsOn) { CollapseBorderDrawShape(true); } var dA = new DoubleAnimation(1, 1, new Duration(TimeSpan.FromMilliseconds(0))); ImageDrawDotLine.BeginAnimation(OpacityProperty, dA); } DrawShapePromptToPen(); } private void BtnDrawArrow_Click(object sender, EventArgs e) { if (lastMouseDownSender == sender) { forceEraser = true; drawingShapeMode = 2; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); } lastMouseDownSender = null; if (isLongPressSelected) { if (ToggleSwitchDrawShapeBorderAutoHide.IsOn) { CollapseBorderDrawShape(true); } var dA = new DoubleAnimation(1, 1, new Duration(TimeSpan.FromMilliseconds(0))); ImageDrawArrow.BeginAnimation(OpacityProperty, dA); } DrawShapePromptToPen(); } private void BtnDrawParallelLine_Click(object sender, EventArgs e) { if (lastMouseDownSender == sender) { forceEraser = true; drawingShapeMode = 15; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); } lastMouseDownSender = null; if (isLongPressSelected) { if (ToggleSwitchDrawShapeBorderAutoHide.IsOn) { CollapseBorderDrawShape(true); } var dA = new DoubleAnimation(1, 1, new Duration(TimeSpan.FromMilliseconds(0))); ImageDrawParallelLine.BeginAnimation(OpacityProperty, dA); } DrawShapePromptToPen(); } private void BtnDrawCoordinate1_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 11; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawCoordinate2_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 12; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawCoordinate3_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 13; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawCoordinate4_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 14; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawCoordinate5_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 17; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawRectangle_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 3; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawRectangleCenter_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 19; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawEllipse_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 4; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawCircle_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 5; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawCenterEllipse_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 16; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawCenterEllipseWithFocalPoint_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 23; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawDashedCircle_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 10; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawHyperbola_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 24; drawMultiStepShapeCurrentStep = 0; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawHyperbolaWithFocalPoint_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 25; drawMultiStepShapeCurrentStep = 0; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawParabola1_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 20; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawParabolaWithFocalPoint_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 22; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawParabola2_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 21; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawCylinder_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 6; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawCone_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 7; inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } private void BtnDrawCuboid_Click(object sender, EventArgs e) { forceEraser = true; drawingShapeMode = 9; isFirstTouchCuboid = true; CuboidFrontRectIniP = new Point(); CuboidFrontRectEndP = new Point(); inkCanvas.EditingMode = InkCanvasEditingMode.None; inkCanvas.IsManipulationEnabled = true; CancelSingleFingerDragMode(); DrawShapePromptToPen(); } #endregion private void inkCanvas_TouchMove(object sender, TouchEventArgs e) { if (isSingleFingerDragMode) return; if (drawingShapeMode != 0) { if (isLastTouchEraser) { return; } //EraserContainer.Background = null; //ImageEraser.Visibility = Visibility.Visible; if (isWaitUntilNextTouchDown) return; if (dec.Count > 1) { isWaitUntilNextTouchDown = true; try { inkCanvas.Strokes.Remove(lastTempStroke); inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } return; } if (inkCanvas.EditingMode != InkCanvasEditingMode.None) { inkCanvas.EditingMode = InkCanvasEditingMode.None; } } MouseTouchMove(e.GetTouchPoint(inkCanvas).Position); } int drawMultiStepShapeCurrentStep = 0; //多笔完成的图形 当前所处在的笔画 StrokeCollection drawMultiStepShapeSpecialStrokeCollection = new StrokeCollection(); //多笔完成的图形 当前所处在的笔画 //double drawMultiStepShapeSpecialParameter1 = 0.0; //多笔完成的图形 特殊参数 通常用于表示a //double drawMultiStepShapeSpecialParameter2 = 0.0; //多笔完成的图形 特殊参数 通常用于表示b double drawMultiStepShapeSpecialParameter3 = 0.0; //多笔完成的图形 特殊参数 通常用于表示k private void MouseTouchMove(Point endP) { List pointList; StylusPointCollection point; Stroke stroke; StrokeCollection strokes = new StrokeCollection(); Point newIniP = iniP; switch (drawingShapeMode) { case 1: _currentCommitType = CommitReason.ShapeDrawing; pointList = new List{ new System.Windows.Point(iniP.X, iniP.Y), new System.Windows.Point(endP.X, endP.Y) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; try { inkCanvas.Strokes.Remove(lastTempStroke); } catch { } lastTempStroke = stroke; inkCanvas.Strokes.Add(stroke); break; case 8: _currentCommitType = CommitReason.ShapeDrawing; strokes.Add(GenerateDashedLineStrokeCollection(iniP, endP)); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 18: _currentCommitType = CommitReason.ShapeDrawing; strokes.Add(GenerateDotLineStrokeCollection(iniP, endP)); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 2: _currentCommitType = CommitReason.ShapeDrawing; double w = 30, h = 10; double theta = Math.Atan2(iniP.Y - endP.Y, iniP.X - endP.X); double sint = Math.Sin(theta); double cost = Math.Cos(theta); pointList = new List { new Point(iniP.X, iniP.Y), new Point(endP.X , endP.Y), new Point(endP.X + (w * cost - h * sint), endP.Y + (w * sint + h * cost)), new Point(endP.X,endP.Y), new Point(endP.X + (w * cost + h * sint), endP.Y - (h * cost - w * sint)) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; try { inkCanvas.Strokes.Remove(lastTempStroke); } catch { } lastTempStroke = stroke; inkCanvas.Strokes.Add(stroke); break; case 15: _currentCommitType = CommitReason.ShapeDrawing; double d = GetDistance(iniP, endP); if (d == 0) return; double sinTheta = (iniP.Y - endP.Y) / d; double cosTheta = (endP.X - iniP.X) / d; double tanTheta = Math.Abs(sinTheta / cosTheta); double x = 25; if (Math.Abs(tanTheta) < 1.0 / 12) { sinTheta = 0; cosTheta = 1; endP.Y = iniP.Y; } if (tanTheta < 0.63 && tanTheta > 0.52) //30 { sinTheta = sinTheta / Math.Abs(sinTheta) * 0.5; cosTheta = cosTheta / Math.Abs(cosTheta) * 0.866; endP.Y = iniP.Y - d * sinTheta; endP.X = iniP.X + d * cosTheta; } if (tanTheta < 1.08 && tanTheta > 0.92) //45 { sinTheta = sinTheta / Math.Abs(sinTheta) * 0.707; cosTheta = cosTheta / Math.Abs(cosTheta) * 0.707; endP.Y = iniP.Y - d * sinTheta; endP.X = iniP.X + d * cosTheta; } if (tanTheta < 1.95 && tanTheta > 1.63) //60 { sinTheta = sinTheta / Math.Abs(sinTheta) * 0.866; cosTheta = cosTheta / Math.Abs(cosTheta) * 0.5; endP.Y = iniP.Y - d * sinTheta; endP.X = iniP.X + d * cosTheta; } if (Math.Abs(cosTheta / sinTheta) < 1.0 / 12) { endP.X = iniP.X; sinTheta = 1; cosTheta = 0; } strokes.Add(GenerateLineStroke(new Point(iniP.X - 3 * x * sinTheta, iniP.Y - 3 * x * cosTheta), new Point(endP.X - 3 * x * sinTheta, endP.Y - 3 * x * cosTheta))); strokes.Add(GenerateLineStroke(new Point(iniP.X - x * sinTheta, iniP.Y - x * cosTheta), new Point(endP.X - x * sinTheta, endP.Y - x * cosTheta))); strokes.Add(GenerateLineStroke(new Point(iniP.X + x * sinTheta, iniP.Y + x * cosTheta), new Point(endP.X + x * sinTheta, endP.Y + x * cosTheta))); strokes.Add(GenerateLineStroke(new Point(iniP.X + 3 * x * sinTheta, iniP.Y + 3 * x * cosTheta), new Point(endP.X + 3 * x * sinTheta, endP.Y + 3 * x * cosTheta))); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 11: _currentCommitType = CommitReason.ShapeDrawing; strokes.Add(GenerateArrowLineStroke(new Point(2 * iniP.X - (endP.X - 20), iniP.Y), new Point(endP.X, iniP.Y))); strokes.Add(GenerateArrowLineStroke(new Point(iniP.X, 2 * iniP.Y - (endP.Y + 20)), new Point(iniP.X, endP.Y))); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 12: _currentCommitType = CommitReason.ShapeDrawing; if (Math.Abs(iniP.X - endP.X) < 0.01) return; strokes.Add(GenerateArrowLineStroke(new Point(iniP.X + (iniP.X - endP.X) / Math.Abs(iniP.X - endP.X) * 25, iniP.Y), new Point(endP.X, iniP.Y))); strokes.Add(GenerateArrowLineStroke(new Point(iniP.X, 2 * iniP.Y - (endP.Y + 20)), new Point(iniP.X, endP.Y))); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 13: _currentCommitType = CommitReason.ShapeDrawing; if (Math.Abs(iniP.Y - endP.Y) < 0.01) return; strokes.Add(GenerateArrowLineStroke(new Point(2 * iniP.X - (endP.X - 20), iniP.Y), new Point(endP.X, iniP.Y))); strokes.Add(GenerateArrowLineStroke(new Point(iniP.X, iniP.Y + (iniP.Y - endP.Y) / Math.Abs(iniP.Y - endP.Y) * 25), new Point(iniP.X, endP.Y))); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 14: _currentCommitType = CommitReason.ShapeDrawing; if (Math.Abs(iniP.X - endP.X) < 0.01 || Math.Abs(iniP.Y - endP.Y) < 0.01) return; strokes.Add(GenerateArrowLineStroke(new Point(iniP.X + (iniP.X - endP.X) / Math.Abs(iniP.X - endP.X) * 25, iniP.Y), new Point(endP.X, iniP.Y))); strokes.Add(GenerateArrowLineStroke(new Point(iniP.X, iniP.Y + (iniP.Y - endP.Y) / Math.Abs(iniP.Y - endP.Y) * 25), new Point(iniP.X, endP.Y))); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 17: _currentCommitType = CommitReason.ShapeDrawing; strokes.Add(GenerateArrowLineStroke(new Point(iniP.X, iniP.Y), new Point(iniP.X + Math.Abs(endP.X - iniP.X), iniP.Y))); strokes.Add(GenerateArrowLineStroke(new Point(iniP.X, iniP.Y), new Point(iniP.X, iniP.Y - Math.Abs(endP.Y - iniP.Y)))); d = (Math.Abs(iniP.X - endP.X) + Math.Abs(iniP.Y - endP.Y)) / 2; strokes.Add(GenerateArrowLineStroke(new Point(iniP.X, iniP.Y), new Point(iniP.X - d / 1.76, iniP.Y + d / 1.76))); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 3: _currentCommitType = CommitReason.ShapeDrawing; pointList = new List{ new System.Windows.Point(iniP.X, iniP.Y), new System.Windows.Point(iniP.X, endP.Y), new System.Windows.Point(endP.X, endP.Y), new System.Windows.Point(endP.X, iniP.Y), new System.Windows.Point(iniP.X, iniP.Y) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; try { inkCanvas.Strokes.Remove(lastTempStroke); } catch { } lastTempStroke = stroke; inkCanvas.Strokes.Add(stroke); break; case 19: _currentCommitType = CommitReason.ShapeDrawing; double a = iniP.X - endP.X; double b = iniP.Y - endP.Y; pointList = new List{ new System.Windows.Point(iniP.X - a, iniP.Y - b), new System.Windows.Point(iniP.X - a, iniP.Y + b), new System.Windows.Point(iniP.X + a, iniP.Y + b), new System.Windows.Point(iniP.X + a, iniP.Y - b), new System.Windows.Point(iniP.X - a, iniP.Y - b) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; try { inkCanvas.Strokes.Remove(lastTempStroke); } catch { } lastTempStroke = stroke; inkCanvas.Strokes.Add(stroke); break; case 4: _currentCommitType = CommitReason.ShapeDrawing; pointList = GenerateEllipseGeometry(iniP, endP); point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; try { inkCanvas.Strokes.Remove(lastTempStroke); } catch { } lastTempStroke = stroke; inkCanvas.Strokes.Add(stroke); break; case 5: _currentCommitType = CommitReason.ShapeDrawing; double R = GetDistance(iniP, endP); pointList = GenerateEllipseGeometry(new Point(iniP.X - R, iniP.Y - R), new Point(iniP.X + R, iniP.Y + R)); point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; try { inkCanvas.Strokes.Remove(lastTempStroke); } catch { } lastTempStroke = stroke; inkCanvas.Strokes.Add(stroke); break; case 16: _currentCommitType = CommitReason.ShapeDrawing; double halfA = endP.X - iniP.X; double halfB = endP.Y - iniP.Y; pointList = GenerateEllipseGeometry(new Point(iniP.X - halfA, iniP.Y - halfB), new Point(iniP.X + halfA, iniP.Y + halfB)); point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; try { inkCanvas.Strokes.Remove(lastTempStroke); } catch { } lastTempStroke = stroke; inkCanvas.Strokes.Add(stroke); break; case 23: _currentCommitType = CommitReason.ShapeDrawing; a = Math.Abs(endP.X - iniP.X); b = Math.Abs(endP.Y - iniP.Y); pointList = GenerateEllipseGeometry(new Point(iniP.X - a, iniP.Y - b), new Point(iniP.X + a, iniP.Y + b)); point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke); double c = Math.Sqrt(Math.Abs(a * a - b * b)); StylusPoint stylusPoint; if (a > b) { stylusPoint = new StylusPoint(iniP.X + c, iniP.Y, (float)1.0); point = new StylusPointCollection(); point.Add(stylusPoint); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); stylusPoint = new StylusPoint(iniP.X - c, iniP.Y, (float)1.0); point = new StylusPointCollection(); point.Add(stylusPoint); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); } else if (a < b) { stylusPoint = new StylusPoint(iniP.X, iniP.Y - c, (float)1.0); point = new StylusPointCollection(); point.Add(stylusPoint); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); stylusPoint = new StylusPoint(iniP.X, iniP.Y + c, (float)1.0); point = new StylusPointCollection(); point.Add(stylusPoint); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); } try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 10: _currentCommitType = CommitReason.ShapeDrawing; R = GetDistance(iniP, endP); strokes = GenerateDashedLineEllipseStrokeCollection(new Point(iniP.X - R, iniP.Y - R), new Point(iniP.X + R, iniP.Y + R)); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 24: case 25: _currentCommitType = CommitReason.ShapeDrawing; //双曲线 x^2/a^2 - y^2/b^2 = 1 if (Math.Abs(iniP.X - endP.X) < 0.01 || Math.Abs(iniP.Y - endP.Y) < 0.01) return; var pointList2 = new List(); var pointList3 = new List(); var pointList4 = new List(); if (drawMultiStepShapeCurrentStep == 0) { //第一笔：画渐近线 double k = Math.Abs((endP.Y - iniP.Y) / (endP.X - iniP.X)); strokes.Add(GenerateDashedLineStrokeCollection(new Point(2 * iniP.X - endP.X, 2 * iniP.Y - endP.Y), endP)); strokes.Add(GenerateDashedLineStrokeCollection(new Point(2 * iniP.X - endP.X, endP.Y), new Point(endP.X, 2 * iniP.Y - endP.Y))); drawMultiStepShapeSpecialParameter3 = k; drawMultiStepShapeSpecialStrokeCollection = strokes; } else { //第二笔：画双曲线 double k = drawMultiStepShapeSpecialParameter3; bool isHyperbolaFocalPointOnXAxis = Math.Abs((endP.Y - iniP.Y) / (endP.X - iniP.X)) < k; if (isHyperbolaFocalPointOnXAxis) { // 焦点在 x 轴上 a = Math.Sqrt(Math.Abs((endP.X - iniP.X) * (endP.X - iniP.X) - (endP.Y - iniP.Y) * (endP.Y - iniP.Y) / (k * k))); b = a * k; pointList = new List(); for (double i = a; i <= Math.Abs(endP.X - iniP.X); i += 0.5) { double rY = Math.Sqrt(Math.Abs(k * k * i * i - b * b)); pointList.Add(new Point(iniP.X + i, iniP.Y - rY)); pointList2.Add(new Point(iniP.X + i, iniP.Y + rY)); pointList3.Add(new Point(iniP.X - i, iniP.Y - rY)); pointList4.Add(new Point(iniP.X - i, iniP.Y + rY)); } } else { // 焦点在 y 轴上 a = Math.Sqrt(Math.Abs((endP.Y - iniP.Y) * (endP.Y - iniP.Y) - (endP.X - iniP.X) * (endP.X - iniP.X) * (k * k))); b = a / k; pointList = new List(); for (double i = a; i <= Math.Abs(endP.Y - iniP.Y); i += 0.5) { double rX = Math.Sqrt(Math.Abs(i * i / k / k - b * b)); pointList.Add(new Point(iniP.X - rX, iniP.Y + i)); pointList2.Add(new Point(iniP.X + rX, iniP.Y + i)); pointList3.Add(new Point(iniP.X - rX, iniP.Y - i)); pointList4.Add(new Point(iniP.X + rX, iniP.Y - i)); } } try { point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); point = new StylusPointCollection(pointList2); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); point = new StylusPointCollection(pointList3); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); point = new StylusPointCollection(pointList4); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); if (drawingShapeMode == 25) { //画焦点 c = Math.Sqrt(a * a + b * b); stylusPoint = isHyperbolaFocalPointOnXAxis ? new StylusPoint(iniP.X + c, iniP.Y, (float)1.0) : new StylusPoint(iniP.X, iniP.Y + c, (float)1.0); point = new StylusPointCollection(); point.Add(stylusPoint); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); stylusPoint = isHyperbolaFocalPointOnXAxis ? new StylusPoint(iniP.X - c, iniP.Y, (float)1.0) : new StylusPoint(iniP.X, iniP.Y - c, (float)1.0); point = new StylusPointCollection(); point.Add(stylusPoint); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); } } catch { return; } } try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 20: _currentCommitType = CommitReason.ShapeDrawing; //抛物线 y=ax^2 if (Math.Abs(iniP.X - endP.X) < 0.01 || Math.Abs(iniP.Y - endP.Y) < 0.01) return; a = (iniP.Y - endP.Y) / ((iniP.X - endP.X) * (iniP.X - endP.X)); pointList = new List(); pointList2 = new List(); for (double i = 0.0; i <= Math.Abs(endP.X - iniP.X); i += 0.5) { pointList.Add(new Point(iniP.X + i, iniP.Y - a * i * i)); pointList2.Add(new Point(iniP.X - i, iniP.Y - a * i * i)); } point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); point = new StylusPointCollection(pointList2); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 21: _currentCommitType = CommitReason.ShapeDrawing; //抛物线 y^2=ax if (Math.Abs(iniP.X - endP.X) < 0.01 || Math.Abs(iniP.Y - endP.Y) < 0.01) return; a = (iniP.X - endP.X) / ((iniP.Y - endP.Y) * (iniP.Y - endP.Y)); pointList = new List(); pointList2 = new List(); for (double i = 0.0; i <= Math.Abs(endP.Y - iniP.Y); i += 0.5) { pointList.Add(new Point(iniP.X - a * i * i, iniP.Y + i)); pointList2.Add(new Point(iniP.X - a * i * i, iniP.Y - i)); } point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); point = new StylusPointCollection(pointList2); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 22: _currentCommitType = CommitReason.ShapeDrawing; //抛物线 y^2=ax, 含焦点 if (Math.Abs(iniP.X - endP.X) < 0.01 || Math.Abs(iniP.Y - endP.Y) < 0.01) return; double p = (iniP.Y - endP.Y) * (iniP.Y - endP.Y) / (2 * (iniP.X - endP.X)); a = 0.5 / p; pointList = new List(); pointList2 = new List(); for (double i = 0.0; i <= Math.Abs(endP.Y - iniP.Y); i += 0.5) { pointList.Add(new Point(iniP.X - a * i * i, iniP.Y + i)); pointList2.Add(new Point(iniP.X - a * i * i, iniP.Y - i)); } point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); point = new StylusPointCollection(pointList2); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); stylusPoint = new StylusPoint(iniP.X - p / 2, iniP.Y, (float)1.0); point = new StylusPointCollection(); point.Add(stylusPoint); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 6: _currentCommitType = CommitReason.ShapeDrawing; newIniP = iniP; if (iniP.Y > endP.Y) { newIniP = new Point(iniP.X, endP.Y); endP = new Point(endP.X, iniP.Y); } double topA = Math.Abs(newIniP.X - endP.X); double topB = topA / 2.646; //顶部椭圆 pointList = GenerateEllipseGeometry(new Point(newIniP.X, newIniP.Y - topB / 2), new Point(endP.X, newIniP.Y + topB / 2)); point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); //底部椭圆 pointList = GenerateEllipseGeometry(new Point(newIniP.X, endP.Y - topB / 2), new Point(endP.X, endP.Y + topB / 2), false, true); point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); strokes.Add(GenerateDashedLineEllipseStrokeCollection(new Point(newIniP.X, endP.Y - topB / 2), new Point(endP.X, endP.Y + topB / 2), true, false)); //左侧 pointList = new List{ new System.Windows.Point(newIniP.X, newIniP.Y), new System.Windows.Point(newIniP.X, endP.Y) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); //右侧 pointList = new List{ new System.Windows.Point(endP.X, newIniP.Y), new System.Windows.Point(endP.X, endP.Y) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 7: _currentCommitType = CommitReason.ShapeDrawing; if (iniP.Y > endP.Y) { newIniP = new Point(iniP.X, endP.Y); endP = new Point(endP.X, iniP.Y); } double bottomA = Math.Abs(newIniP.X - endP.X); double bottomB = bottomA / 2.646; //底部椭圆 pointList = GenerateEllipseGeometry(new Point(newIniP.X, endP.Y - bottomB / 2), new Point(endP.X, endP.Y + bottomB / 2), false, true); point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); strokes.Add(GenerateDashedLineEllipseStrokeCollection(new Point(newIniP.X, endP.Y - bottomB / 2), new Point(endP.X, endP.Y + bottomB / 2), true, false)); //左侧 pointList = new List{ new System.Windows.Point((newIniP.X + endP.X) / 2, newIniP.Y), new System.Windows.Point(newIniP.X, endP.Y) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); //右侧 pointList = new List{ new System.Windows.Point((newIniP.X + endP.X) / 2, newIniP.Y), new System.Windows.Point(endP.X, endP.Y) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); break; case 9: _currentCommitType = CommitReason.ShapeDrawing; if (isFirstTouchCuboid) { //分开画线条方便后期单独擦除某一条棱 strokes.Add(GenerateLineStroke(new Point(iniP.X, iniP.Y), new Point(iniP.X, endP.Y))); strokes.Add(GenerateLineStroke(new Point(iniP.X, endP.Y), new Point(endP.X, endP.Y))); strokes.Add(GenerateLineStroke(new Point(endP.X, endP.Y), new Point(endP.X, iniP.Y))); strokes.Add(GenerateLineStroke(new Point(iniP.X, iniP.Y), new Point(endP.X, iniP.Y))); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); CuboidFrontRectIniP = iniP; CuboidFrontRectEndP = endP; } else { d = CuboidFrontRectIniP.Y - endP.Y; if (d < 0) d = -d; //就是懒不想做反向的，不要让我去做，想做自己做好之后 Pull Request a = CuboidFrontRectEndP.X - CuboidFrontRectIniP.X; //正面矩形长 b = CuboidFrontRectEndP.Y - CuboidFrontRectIniP.Y; //正面矩形宽 //横上 Point newLineIniP = new Point(CuboidFrontRectIniP.X + d, CuboidFrontRectIniP.Y - d); Point newLineEndP = new Point(CuboidFrontRectEndP.X + d, CuboidFrontRectIniP.Y - d); pointList = new List { newLineIniP, newLineEndP }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); //横下 (虚线) newLineIniP = new Point(CuboidFrontRectIniP.X + d, CuboidFrontRectEndP.Y - d); newLineEndP = new Point(CuboidFrontRectEndP.X + d, CuboidFrontRectEndP.Y - d); strokes.Add(GenerateDashedLineStrokeCollection(newLineIniP, newLineEndP)); //斜左上 newLineIniP = new Point(CuboidFrontRectIniP.X, CuboidFrontRectIniP.Y); newLineEndP = new Point(CuboidFrontRectIniP.X + d, CuboidFrontRectIniP.Y - d); pointList = new List { newLineIniP, newLineEndP }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); //斜右上 newLineIniP = new Point(CuboidFrontRectEndP.X, CuboidFrontRectIniP.Y); newLineEndP = new Point(CuboidFrontRectEndP.X + d, CuboidFrontRectIniP.Y - d); pointList = new List { newLineIniP, newLineEndP }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); //斜左下 (虚线) newLineIniP = new Point(CuboidFrontRectIniP.X, CuboidFrontRectEndP.Y); newLineEndP = new Point(CuboidFrontRectIniP.X + d, CuboidFrontRectEndP.Y - d); strokes.Add(GenerateDashedLineStrokeCollection(newLineIniP, newLineEndP)); //斜右下 newLineIniP = new Point(CuboidFrontRectEndP.X, CuboidFrontRectEndP.Y); newLineEndP = new Point(CuboidFrontRectEndP.X + d, CuboidFrontRectEndP.Y - d); pointList = new List { newLineIniP, newLineEndP }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); //竖左 (虚线) newLineIniP = new Point(CuboidFrontRectIniP.X + d, CuboidFrontRectIniP.Y - d); newLineEndP = new Point(CuboidFrontRectIniP.X + d, CuboidFrontRectEndP.Y - d); strokes.Add(GenerateDashedLineStrokeCollection(newLineIniP, newLineEndP)); //竖右 newLineIniP = new Point(CuboidFrontRectEndP.X + d, CuboidFrontRectIniP.Y - d); newLineEndP = new Point(CuboidFrontRectEndP.X + d, CuboidFrontRectEndP.Y - d); pointList = new List { newLineIniP, newLineEndP }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); try { inkCanvas.Strokes.Remove(lastTempStrokeCollection); } catch { } lastTempStrokeCollection = strokes; inkCanvas.Strokes.Add(strokes); } break; } } bool isFirstTouchCuboid = true; Point CuboidFrontRectIniP = new Point(); Point CuboidFrontRectEndP = new Point(); private void Main_Grid_TouchUp(object sender, TouchEventArgs e) { inkCanvas_MouseUp(sender, null); if (dec.Count == 0) { isWaitUntilNextTouchDown = false; } } Stroke lastTempStroke = null; StrokeCollection lastTempStrokeCollection = new StrokeCollection(); bool isWaitUntilNextTouchDown = false; private List GenerateEllipseGeometry(System.Windows.Point st, System.Windows.Point ed, bool isDrawTop = true, bool isDrawBottom = true) { double a = 0.5 * (ed.X - st.X); double b = 0.5 * (ed.Y - st.Y); List pointList = new List(); if (isDrawTop && isDrawBottom) { for (double r = 0; r <= 2 * Math.PI; r = r + 0.01) { pointList.Add(new System.Windows.Point(0.5 * (st.X + ed.X) + a * Math.Cos(r), 0.5 * (st.Y + ed.Y) + b * Math.Sin(r))); } } else { if (isDrawBottom) { for (double r = 0; r <= Math.PI; r = r + 0.01) { pointList.Add(new System.Windows.Point(0.5 * (st.X + ed.X) + a * Math.Cos(r), 0.5 * (st.Y + ed.Y) + b * Math.Sin(r))); } } if (isDrawTop) { for (double r = Math.PI; r <= 2 * Math.PI; r = r + 0.01) { pointList.Add(new System.Windows.Point(0.5 * (st.X + ed.X) + a * Math.Cos(r), 0.5 * (st.Y + ed.Y) + b * Math.Sin(r))); } } } return pointList; } private StrokeCollection GenerateDashedLineEllipseStrokeCollection(System.Windows.Point st, System.Windows.Point ed, bool isDrawTop = true, bool isDrawBottom = true) { double a = 0.5 * (ed.X - st.X); double b = 0.5 * (ed.Y - st.Y); double step = 0.05; List pointList = new List(); StylusPointCollection point; Stroke stroke; StrokeCollection strokes = new StrokeCollection(); if (isDrawBottom) { for (double i = 0.0; i < 1.0; i += step * 1.66) { pointList = new List(); for (double r = Math.PI * i; r <= Math.PI * (i + step); r = r + 0.01) { pointList.Add(new System.Windows.Point(0.5 * (st.X + ed.X) + a * Math.Cos(r), 0.5 * (st.Y + ed.Y) + b * Math.Sin(r))); } point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); } } if (isDrawTop) { for (double i = 1.0; i < 2.0; i += step * 1.66) { pointList = new List(); for (double r = Math.PI * i; r <= Math.PI * (i + step); r = r + 0.01) { pointList.Add(new System.Windows.Point(0.5 * (st.X + ed.X) + a * Math.Cos(r), 0.5 * (st.Y + ed.Y) + b * Math.Sin(r))); } point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); } } return strokes; } private Stroke GenerateLineStroke(System.Windows.Point st, System.Windows.Point ed) { List pointList = new List(); StylusPointCollection point; Stroke stroke; pointList = new List{ new System.Windows.Point(st.X, st.Y), new System.Windows.Point(ed.X, ed.Y) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; return stroke; } private Stroke GenerateArrowLineStroke(System.Windows.Point st, System.Windows.Point ed) { List pointList = new List(); StylusPointCollection point; Stroke stroke; double w = 20, h = 7; double theta = Math.Atan2(st.Y - ed.Y, st.X - ed.X); double sint = Math.Sin(theta); double cost = Math.Cos(theta); pointList = new List { new Point(st.X, st.Y), new Point(ed.X , ed.Y), new Point(ed.X + (w * cost - h * sint), ed.Y + (w * sint + h * cost)), new Point(ed.X,ed.Y), new Point(ed.X + (w * cost + h * sint), ed.Y - (h * cost - w * sint)) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; return stroke; } private StrokeCollection GenerateDashedLineStrokeCollection(System.Windows.Point st, System.Windows.Point ed) { double step = 5; List pointList = new List(); StylusPointCollection point; Stroke stroke; StrokeCollection strokes = new StrokeCollection(); double d = GetDistance(st, ed); double sinTheta = (ed.Y - st.Y) / d; double cosTheta = (ed.X - st.X) / d; for (double i = 0.0; i < d; i += step * 2.76) { pointList = new List{ new System.Windows.Point(st.X + i * cosTheta, st.Y + i * sinTheta), new System.Windows.Point(st.X + Math.Min(i + step, d) * cosTheta, st.Y + Math.Min(i + step, d) * sinTheta) }; point = new StylusPointCollection(pointList); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); } return strokes; } private StrokeCollection GenerateDotLineStrokeCollection(System.Windows.Point st, System.Windows.Point ed) { double step = 3; List pointList = new List(); StylusPointCollection point; Stroke stroke; StrokeCollection strokes = new StrokeCollection(); double d = GetDistance(st, ed); double sinTheta = (ed.Y - st.Y) / d; double cosTheta = (ed.X - st.X) / d; for (double i = 0.0; i < d; i += step * 2.76) { var stylusPoint = new StylusPoint(st.X + i * cosTheta, st.Y + i * sinTheta, (float)0.8); point = new StylusPointCollection(); point.Add(stylusPoint); stroke = new Stroke(point) { DrawingAttributes = inkCanvas.DefaultDrawingAttributes.Clone() }; strokes.Add(stroke.Clone()); } return strokes; } bool isMouseDown = false; private void inkCanvas_MouseDown(object sender, MouseButtonEventArgs e) { isMouseDown = true; if (NeedUpdateIniP()) { iniP = e.GetPosition(inkCanvas); } } private void inkCanvas_MouseMove(object sender, MouseEventArgs e) { if (isMouseDown) { MouseTouchMove(e.GetPosition(inkCanvas)); } } private void inkCanvas_MouseUp(object sender, MouseButtonEventArgs e) { if (drawingShapeMode == 5) { Circle circle = new Circle(new Point(), 0, lastTempStroke); circle.R = GetDistance(circle.Stroke.StylusPoints[0].ToPoint(), circle.Stroke.StylusPoints[circle.Stroke.StylusPoints.Count / 2].ToPoint()) / 2; circle.Centroid = new Point((circle.Stroke.StylusPoints[0].X + circle.Stroke.StylusPoints[circle.Stroke.StylusPoints.Count / 2].X) / 2, (circle.Stroke.StylusPoints[0].Y + circle.Stroke.StylusPoints[circle.Stroke.StylusPoints.Count / 2].Y) / 2); circles.Add(circle); } if (drawingShapeMode != 9 && drawingShapeMode != 0 && drawingShapeMode != 24 && drawingShapeMode != 25) { if (isLongPressSelected) { } else { BtnPen_Click(null, null); //画完一次还原到笔模式 } } if (drawingShapeMode == 9) { if (isFirstTouchCuboid) { if (CuboidStrokeCollection == null) CuboidStrokeCollection = new StrokeCollection(); isFirstTouchCuboid = false; Point newIniP = new Point(Math.Min(CuboidFrontRectIniP.X, CuboidFrontRectEndP.X), Math.Min(CuboidFrontRectIniP.Y, CuboidFrontRectEndP.Y)); Point newEndP = new Point(Math.Max(CuboidFrontRectIniP.X, CuboidFrontRectEndP.X), Math.Max(CuboidFrontRectIniP.Y, CuboidFrontRectEndP.Y)); CuboidFrontRectIniP = newIniP; CuboidFrontRectEndP = newEndP; CuboidStrokeCollection.Add(lastTempStrokeCollection); } else { BtnPen_Click(null, null); //画完还原到笔模式 if (_currentCommitType == CommitReason.ShapeDrawing) { CuboidStrokeCollection.Add(lastTempStrokeCollection); _currentCommitType = CommitReason.UserInput; timeMachine.CommitStrokeUserInputHistory(CuboidStrokeCollection); CuboidStrokeCollection = null; } } } if (drawingShapeMode == 24 || drawingShapeMode == 25) { if (drawMultiStepShapeCurrentStep == 0) { drawMultiStepShapeCurrentStep = 1; } else { drawMultiStepShapeCurrentStep = 0; if (drawMultiStepShapeSpecialStrokeCollection != null) { bool opFlag = false; switch (Settings.Canvas.HyperbolaAsymptoteOption) { case OptionalOperation.Yes: opFlag = true; break; case OptionalOperation.No: opFlag = false; break; case OptionalOperation.Ask: opFlag = MessageBox.Show("是否移除渐近线？", "Ink Canvas", MessageBoxButton.YesNo) != MessageBoxResult.Yes; break; }; if (!opFlag) { inkCanvas.Strokes.Remove(drawMultiStepShapeSpecialStrokeCollection); } } BtnPen_Click(null, null); //画完还原到笔模式 } } isMouseDown = false; if (ReplacedStroke != null || AddedStroke != null) { timeMachine.CommitStrokeEraseHistory(ReplacedStroke, AddedStroke); AddedStroke = null; ReplacedStroke = null; } if (_currentCommitType == CommitReason.ShapeDrawing && drawingShapeMode != 9) { _currentCommitType = CommitReason.UserInput; StrokeCollection collection; if (lastTempStrokeCollection != null && lastTempStrokeCollection.Count > 0) { collection = lastTempStrokeCollection; } else { collection = new StrokeCollection() { lastTempStroke }; } timeMachine.CommitStrokeUserInputHistory(collection); } lastTempStroke = null; lastTempStrokeCollection = null; } private bool NeedUpdateIniP() { if (drawingShapeMode == 24 || drawingShapeMode == 25) { if (drawMultiStepShapeCurrentStep == 1) return false; } return true; } } }