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@@ -1,6 +1,8 @@
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using System;
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using System.Collections.Generic;
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+using System.Diagnostics;
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using System.Windows;
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+using System.Windows.Input;
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using System.Windows.Media;
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namespace ComPDFKit.Tool.DrawTool
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@@ -27,7 +29,11 @@ namespace ComPDFKit.Tool.DrawTool
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/// <summary>
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/// Current click hit control point.
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/// </summary>
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- protected PointControlType hitControlType { get; set; }
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+ protected PointControlType hitControlType
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+ {
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+ get;
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+ set;
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+ }
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/// <summary>
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/// Mouse down position information.
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@@ -39,6 +45,10 @@ namespace ComPDFKit.Tool.DrawTool
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/// </summary>
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protected bool isMouseDown { get; set; }
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+ protected bool isInRotate { get; set; } = false;
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+
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+ protected bool isInScaling { get; set; } = false;
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+
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/// <summary>
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/// Whether proportional scaling is required.
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/// </summary>
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@@ -94,6 +104,12 @@ namespace ComPDFKit.Tool.DrawTool
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/// </summary>
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protected List<Point> controlPoints { get; set; } = new List<Point>();
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+ protected Point centerPoint = new Point();
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+
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+ protected Point rotationPoint = new Point();
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+
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+ protected Point dragRotationPoint = new Point();
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+
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/// <summary>
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/// Move offset during movement.
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/// </summary>
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@@ -119,6 +135,8 @@ namespace ComPDFKit.Tool.DrawTool
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protected double PDFViewerActualHeight { get; set; } = 0;
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+ protected double rotateAngle { get; set; } = 0;
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+
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protected double rectPadding = 6;
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protected double currentZoom = 1;
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@@ -127,6 +145,7 @@ namespace ComPDFKit.Tool.DrawTool
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protected bool disable = false;
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+
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#endregion
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#region Functions
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@@ -140,17 +159,22 @@ namespace ComPDFKit.Tool.DrawTool
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protected void CalcControlPoint(Rect currentRect)
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{
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controlPoints.Clear();
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- int centerX = (int)(currentRect.Left + currentRect.Right) / 2;
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- int centerY = (int)(currentRect.Top + currentRect.Bottom) / 2;
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+ centerPoint.X = (int)(currentRect.Left + currentRect.Right) / 2;
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+ centerPoint.Y = (int)(currentRect.Top + currentRect.Bottom) / 2;
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controlPoints.Add(new Point(currentRect.Left, currentRect.Top));
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- controlPoints.Add(new Point(currentRect.Left, centerY));
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+ controlPoints.Add(new Point(currentRect.Left, centerPoint.Y));
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controlPoints.Add(new Point(currentRect.Left, currentRect.Bottom));
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- controlPoints.Add(new Point(centerX, currentRect.Bottom));
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+ controlPoints.Add(new Point(centerPoint.X, currentRect.Bottom));
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controlPoints.Add(new Point(currentRect.Right, currentRect.Bottom));
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- controlPoints.Add(new Point(currentRect.Right, centerY));
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+ controlPoints.Add(new Point(currentRect.Right, centerPoint.Y));
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controlPoints.Add(new Point(currentRect.Right, currentRect.Top));
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- controlPoints.Add(new Point(centerX, currentRect.Top));
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+ controlPoints.Add(new Point(centerPoint.X, currentRect.Top));
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+
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+ if (canRotation)
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+ {
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+ rotationPoint = new Point(centerPoint.X, currentRect.Top - 30);
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+ }
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}
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protected List<Point> GetControlPoint(Rect currentRect)
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@@ -234,6 +258,11 @@ namespace ComPDFKit.Tool.DrawTool
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{
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return false;
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}
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+ if (hitControlType == PointControlType.Rotate)
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+ {
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+ return SetRotate(mousePoint);
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+ }
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+
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if (!isOutSideScaling)
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{
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return NormalScaling(mousePoint);
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@@ -270,6 +299,15 @@ namespace ComPDFKit.Tool.DrawTool
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return new Size(width, height);
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}
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+ private bool SetRotate(Point mousePoint)
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+ {
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+ dragRotationPoint = mousePoint;
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+ Vector moveVector = (mousePoint - centerPoint);
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+
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+ rotateAngle = Math.Atan2(moveVector.X, -moveVector.Y) * 180 / Math.PI;
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+
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+ return false;
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+ }
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/// <summary>
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/// Draw the algorithm in the form of normal scaling (drag a point, only scale in one direction).
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@@ -391,7 +429,7 @@ namespace ComPDFKit.Tool.DrawTool
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}
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break;
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- case PointControlType.MiddlBottom:
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+ case PointControlType.MiddleBottom:
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{
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left = cacheRect.Left;
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right = cacheRect.Right;
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@@ -683,7 +721,7 @@ namespace ComPDFKit.Tool.DrawTool
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}
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break;
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- case PointControlType.MiddlBottom:
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+ case PointControlType.MiddleBottom:
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{
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left = cacheRect.Left;
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right = cacheRect.Right;
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@@ -905,7 +943,7 @@ namespace ComPDFKit.Tool.DrawTool
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case PointControlType.RightMiddle:
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offsetPos = new Point(movePoint.X, Math.Abs(movePoint.X) * ratioX * (movePoint.X < 0 ? -1 : 1));
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break;
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- case PointControlType.MiddlBottom:
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+ case PointControlType.MiddleBottom:
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offsetPos = new Point(Math.Abs(movePoint.Y) * ratioY * (movePoint.Y < 0 ? 1 : -1), movePoint.Y);
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break;
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case PointControlType.MiddleTop:
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@@ -988,36 +1026,82 @@ namespace ComPDFKit.Tool.DrawTool
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/// </param>
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protected void DrawSquarePoint(DrawingContext drawingContext, List<PointControlType> ignoreList, int PointSize, Pen PointPen, SolidColorBrush BorderBrush)
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{
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- GeometryGroup controlGroup = new GeometryGroup();
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- controlGroup.FillRule = FillRule.Nonzero;
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- List<Point> ignorePointsList = new List<Point>();
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- // Get specific points
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- foreach (PointControlType type in ignoreList)
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+
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+ RotateTransform rotateTransform = new RotateTransform(rotateAngle, centerPoint.X, centerPoint.Y);
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+ if (canRotation && !isInScaling)
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{
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- if ((int)type < controlPoints.Count)
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+ Point currentRotationPoint = isInRotate ? dragRotationPoint : rotationPoint;
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+ GeometryGroup rotateGroup = new GeometryGroup();
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+
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+ double angleInRadians = rotateAngle * (Math.PI / 180);
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+
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+ double sinValue = Math.Sin(angleInRadians);
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+ double cosValue = Math.Cos(angleInRadians);
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+
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+ double rotatedX = currentRotationPoint.X - pointSize * sinValue;
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+ double rotatedY = currentRotationPoint.Y + pointSize * cosValue;
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+
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+ LineGeometry moveLineGeometry = new LineGeometry(centerPoint, new Point(rotatedX, rotatedY));
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+
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+ EllipseGeometry ellipseGeometry = new EllipseGeometry(currentRotationPoint, PointSize, pointSize);
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+
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+ rotateGroup.Children.Add(moveLineGeometry);
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+ rotateGroup.Children.Add(ellipseGeometry);
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+
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+ if (!isInRotate)
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{
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- ignorePointsList.Add(controlPoints[(int)type]);
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+ rotateGroup.Children.Remove(moveLineGeometry);
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+ LineGeometry stopLineGeometry = new LineGeometry(centerPoint, new Point(currentRotationPoint.X, currentRotationPoint.Y + pointSize));
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+ rotateGroup.Children.Add(stopLineGeometry);
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+ drawingContext.PushTransform(rotateTransform);
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+ }
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+
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+ drawingContext?.DrawGeometry(BorderBrush, PointPen, rotateGroup);
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+
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+ if (!isInRotate)
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+ {
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+
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+ drawingContext.Pop();
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}
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}
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- for (int i = 0; i < controlPoints.Count; i++)
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+ if (!isInRotate)
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{
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- Point controlPoint = controlPoints[i];
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- if (ignorePointsList.Contains(controlPoint))
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+ GeometryGroup controlGroup = new GeometryGroup();
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+ controlGroup.FillRule = FillRule.Nonzero;
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+ List<Point> ignorePointsList = new List<Point>();
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+ // Get specific points
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+ foreach (PointControlType type in ignoreList)
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{
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- continue;
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+ if ((int)type < controlPoints.Count)
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+ {
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+ ignorePointsList.Add(controlPoints[(int)type]);
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+ }
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}
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- RectangleGeometry rectPoint = new RectangleGeometry(new Rect(controlPoint.X - PointSize, controlPoint.Y - PointSize,
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- PointSize * 2, PointSize * 2), 1, 1);
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- controlGroup.Children.Add(rectPoint);
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+ for (int i = 0; i < controlPoints.Count; i++)
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+ {
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+ Point controlPoint = controlPoints[i];
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+ if (ignorePointsList.Contains(controlPoint))
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+ {
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+ continue;
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+ }
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+ RectangleGeometry rectPoint = new RectangleGeometry(new Rect(controlPoint.X - PointSize, controlPoint.Y - PointSize,
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+ PointSize * 2, PointSize * 2), 1, 1);
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+ controlGroup.Children.Add(rectPoint);
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+ }
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+
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+ drawingContext.PushTransform(rotateTransform);
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+ drawingContext?.DrawGeometry(BorderBrush, PointPen, controlGroup);
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+ drawingContext.Pop();
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}
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- drawingContext?.DrawGeometry(BorderBrush, PointPen, controlGroup);
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+
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+
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}
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protected void DrawCropPoint(DrawingContext drawingContext, List<PointControlType> ignoreList, int PointSize, Pen PointPen, SolidColorBrush BorderBrush)
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{
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//GeometryGroup controlGroup = new GeometryGroup();
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//controlGroup.FillRule = FillRule.Nonzero;
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- clipThickness.Left = (SetDrawRect.Left - drawRect.Left)/currentZoom;
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+ clipThickness.Left = (SetDrawRect.Left - drawRect.Left) / currentZoom;
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clipThickness.Top = (SetDrawRect.Top - drawRect.Top) / currentZoom;
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clipThickness.Right = (SetDrawRect.Right - drawRect.Right) / currentZoom;
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clipThickness.Bottom = (SetDrawRect.Bottom - drawRect.Bottom) / currentZoom;
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@@ -1055,7 +1139,7 @@ namespace ComPDFKit.Tool.DrawTool
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}
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//Bottom Center
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- if (!ignoreList.Contains(PointControlType.MiddlBottom))
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+ if (!ignoreList.Contains(PointControlType.MiddleBottom))
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{
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drawingContext?.DrawRectangle(BorderBrush, null, new Rect((controlCurrentPoints[3].X + controlCurrentPoints[3].X - PointSize * 5) / 2, controlCurrentPoints[3].Y, PointSize * 5, PointSize));
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}
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@@ -1122,7 +1206,7 @@ namespace ComPDFKit.Tool.DrawTool
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drawDc?.DrawLine(activePen, new Point(0, moveRect.Bottom), new Point(PDFViewerActualWidth, moveRect.Bottom));
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drawDc?.DrawLine(activePen, new Point(moveRect.Left, 0), new Point(moveRect.Left, PDFViewerActualHeight));
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break;
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- case PointControlType.MiddlBottom:
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+ case PointControlType.MiddleBottom:
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drawDc?.DrawLine(activePen, new Point(0, moveRect.Bottom), new Point(PDFViewerActualWidth, moveRect.Bottom));
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break;
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case PointControlType.RightBottom:
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@@ -1140,6 +1224,15 @@ namespace ComPDFKit.Tool.DrawTool
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drawDc?.DrawLine(activePen, new Point(0, moveRect.Top), new Point(PDFViewerActualWidth, moveRect.Top));
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break;
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case PointControlType.Rotate:
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+ drawDc?.DrawLine(activePen, new Point(0, moveRect.Top), new Point(moveRect.Left, moveRect.Top));
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+ drawDc?.DrawLine(activePen, new Point(moveRect.Right, moveRect.Top), new Point(PDFViewerActualWidth, moveRect.Top));
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+ drawDc?.DrawLine(activePen, new Point(moveRect.Left, moveRect.Top), new Point(moveRect.Left, 0));
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+ drawDc?.DrawLine(activePen, new Point(moveRect.Right, moveRect.Top), new Point(moveRect.Right, 0));
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+
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+ drawDc?.DrawLine(activePen, new Point(0, moveRect.Bottom), new Point(moveRect.Left, moveRect.Bottom));
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+ drawDc?.DrawLine(activePen, new Point(moveRect.Right, moveRect.Bottom), new Point(PDFViewerActualWidth, moveRect.Bottom));
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+ drawDc?.DrawLine(activePen, new Point(moveRect.Left, moveRect.Bottom), new Point(moveRect.Left, PDFViewerActualHeight));
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+ drawDc?.DrawLine(activePen, new Point(moveRect.Right, moveRect.Bottom), new Point(moveRect.Right, PDFViewerActualHeight));
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break;
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case PointControlType.Body:
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case PointControlType.Line:
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