ASCU_ALL/PrintPDF/PdfSharp/Drawing/XGraphicsPath.cs
2021-05-25 17:00:45 +05:00

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#region PDFsharp - A .NET library for processing PDF
//
// Authors:
// Stefan Lange
//
// Copyright (c) 2005-2017 empira Software GmbH, Cologne Area (Germany)
//
// http://www.pdfsharp.com
// http://sourceforge.net/projects/pdfsharp
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#endregion
using System;
using System.Diagnostics;
#if GDI
using System.Drawing;
using System.Drawing.Drawing2D;
#endif
#if WPF
using System.Windows;
using System.Windows.Media;
using SysPoint = System.Windows.Point;
using SysSize = System.Windows.Size;
using SysRect = System.Windows.Rect;
#if !SILVERLIGHT
using WpfBrushes = System.Windows.Media.Brushes;
#endif
#endif
#if NETFX_CORE
using Windows.UI.Xaml.Media;
using SysPoint = Windows.Foundation.Point;
using SysSize = Windows.Foundation.Size;
using SysRect = Windows.Foundation.Rect;
#endif
using PdfSharp.Internal;
namespace PdfSharp.Drawing
{
/// <summary>
/// Represents a series of connected lines and curves.
/// </summary>
public sealed class XGraphicsPath
{
/// <summary>
/// Initializes a new instance of the <see cref="XGraphicsPath"/> class.
/// </summary>
public XGraphicsPath()
{
#if CORE
_corePath = new CoreGraphicsPath();
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath = new GraphicsPath();
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
_pathGeometry = new PathGeometry();
#endif
}
#if GDI
/// <summary>
/// Initializes a new instance of the <see cref="XGraphicsPath"/> class.
/// </summary>
public XGraphicsPath(PointF[] points, byte[] types, XFillMode fillMode)
{
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath = new GraphicsPath(points, types, (FillMode)fillMode);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF // Is true only in Hybrid build.
_pathGeometry = new PathGeometry();
_pathGeometry.FillRule = FillRule.EvenOdd;
#endif
}
#endif
#if WPF || NETFX_CORE
/// <summary>
/// Gets the current path figure.
/// </summary>
PathFigure CurrentPathFigure
{
get
{
int count = _pathGeometry.Figures.Count;
if (count == 0)
{
// Create new figure if there is none.
_pathGeometry.Figures.Add(new PathFigure());
count++;
}
else
{
PathFigure lastFigure = _pathGeometry.Figures[count - 1];
if (lastFigure.IsClosed)
{
if (lastFigure.Segments.Count > 0)
{
// Create new figure if previous one was closed.
_pathGeometry.Figures.Add(new PathFigure());
count++;
}
else
{
Debug.Assert(false);
}
}
}
// Return last figure in collection.
return _pathGeometry.Figures[count - 1];
}
}
/// <summary>
/// Gets the current path figure, but never created a new one.
/// </summary>
PathFigure PeekCurrentFigure
{
get
{
int count = _pathGeometry.Figures.Count;
return count == 0 ? null : _pathGeometry.Figures[count - 1];
}
}
#endif
/// <summary>
/// Clones this instance.
/// </summary>
public XGraphicsPath Clone()
{
XGraphicsPath path = (XGraphicsPath)MemberwiseClone();
#if CORE
_corePath = new CoreGraphicsPath(_corePath);
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
path._gdipPath = _gdipPath.Clone() as GraphicsPath;
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
#if !SILVERLIGHT && !NETFX_CORE
path._pathGeometry = _pathGeometry.Clone();
#else
// AG-HACK
throw new InvalidOperationException("Silverlight cannot clone geometry objects.");
// TODO: make it manually...
#pragma warning disable 0162
#endif
#endif
return path;
}
// ----- AddLine ------------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a line segment to current figure.
/// </summary>
public void AddLine(System.Drawing.Point pt1, System.Drawing.Point pt2)
{
AddLine(pt1.X, pt1.Y, pt2.X, pt2.Y);
}
#endif
#if WPF
/// <summary>
/// Adds a line segment to current figure.
/// </summary>
public void AddLine(SysPoint pt1, SysPoint pt2)
{
AddLine(pt1.X, pt1.Y, pt2.X, pt2.Y);
}
#endif
#if GDI
/// <summary>
/// Adds a line segment to current figure.
/// </summary>
public void AddLine(PointF pt1, PointF pt2)
{
AddLine(pt1.X, pt1.Y, pt2.X, pt2.Y);
}
#endif
/// <summary>
/// Adds a line segment to current figure.
/// </summary>
public void AddLine(XPoint pt1, XPoint pt2)
{
AddLine(pt1.X, pt1.Y, pt2.X, pt2.Y);
}
/// <summary>
/// Adds a line segment to current figure.
/// </summary>
public void AddLine(double x1, double y1, double x2, double y2)
{
#if CORE
_corePath.MoveOrLineTo(x1, y1);
_corePath.LineTo(x2, y2, false);
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddLine((float)x1, (float)y1, (float)x2, (float)y2);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
PathFigure figure = CurrentPathFigure;
if (figure.Segments.Count == 0)
{
figure.StartPoint = new SysPoint(x1, y1);
#if !SILVERLIGHT
var lineSegment = new LineSegment(new SysPoint(x2, y2), true);
#else
var lineSegment = new LineSegment { Point = new Point(x2, y2) };
#endif
figure.Segments.Add(lineSegment);
}
else
{
#if !SILVERLIGHT
var lineSegment1 = new LineSegment(new SysPoint(x1, y1), true);
var lineSegment2 = new LineSegment(new SysPoint(x2, y2), true);
#else
var lineSegment1 = new LineSegment { Point = new Point(x1, y1) };
var lineSegment2 = new LineSegment { Point = new Point(x2, y2) };
#endif
figure.Segments.Add(lineSegment1);
figure.Segments.Add(lineSegment2);
}
#endif
}
// ----- AddLines -----------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a series of connected line segments to current figure.
/// </summary>
public void AddLines(System.Drawing.Point[] points)
{
AddLines(XGraphics.MakeXPointArray(points, 0, points.Length));
}
#endif
#if WPF
/// <summary>
/// Adds a series of connected line segments to current figure.
/// </summary>
public void AddLines(SysPoint[] points)
{
AddLines(XGraphics.MakeXPointArray(points, 0, points.Length));
}
#endif
#if GDI
/// <summary>
/// Adds a series of connected line segments to current figure.
/// </summary>
public void AddLines(PointF[] points)
{
AddLines(XGraphics.MakeXPointArray(points, 0, points.Length));
}
#endif
/// <summary>
/// Adds a series of connected line segments to current figure.
/// </summary>
public void AddLines(XPoint[] points)
{
if (points == null)
throw new ArgumentNullException("points");
int count = points.Length;
if (count == 0)
return;
#if CORE
_corePath.MoveOrLineTo(points[0].X, points[0].Y);
for (int idx = 1; idx < count; idx++)
_corePath.LineTo(points[idx].X, points[idx].Y, false);
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddLines(XGraphics.MakePointFArray(points));
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
PathFigure figure = CurrentPathFigure;
if (figure.Segments.Count == 0)
{
figure.StartPoint = new SysPoint(points[0].X, points[0].Y);
for (int idx = 1; idx < count; idx++)
{
#if !SILVERLIGHT
LineSegment lineSegment = new LineSegment(new SysPoint(points[idx].X, points[idx].Y), true);
#else
LineSegment lineSegment = new LineSegment();
lineSegment.Point = new Point(points[idx].X, points[idx].Y); // ,true?
#endif
figure.Segments.Add(lineSegment);
}
}
else
{
for (int idx = 0; idx < count; idx++)
{
// figure.Segments.Add(new LineSegment(new SysPoint(points[idx].x, points[idx].y), true));
#if !SILVERLIGHT
LineSegment lineSegment = new LineSegment(new SysPoint(points[idx].X, points[idx].Y), true);
#else
LineSegment lineSegment = new LineSegment();
lineSegment.Point = new Point(points[idx].X, points[idx].Y); // ,true?
#endif
figure.Segments.Add(lineSegment);
}
}
#endif
}
// ----- AddBezier ----------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a cubic B<>zier curve to the current figure.
/// </summary>
public void AddBezier(System.Drawing.Point pt1, System.Drawing.Point pt2, System.Drawing.Point pt3, System.Drawing.Point pt4)
{
AddBezier(pt1.X, pt1.Y, pt2.X, pt2.Y, pt3.X, pt3.Y, pt4.X, pt4.Y);
}
#endif
#if WPF
/// <summary>
/// Adds a cubic B<>zier curve to the current figure.
/// </summary>
public void AddBezier(SysPoint pt1, SysPoint pt2, SysPoint pt3, SysPoint pt4)
{
AddBezier(pt1.X, pt1.Y, pt2.X, pt2.Y, pt3.X, pt3.Y, pt4.X, pt4.Y);
}
#endif
#if GDI
/// <summary>
/// Adds a cubic B<>zier curve to the current figure.
/// </summary>
public void AddBezier(PointF pt1, PointF pt2, PointF pt3, PointF pt4)
{
AddBezier(pt1.X, pt1.Y, pt2.X, pt2.Y, pt3.X, pt3.Y, pt4.X, pt4.Y);
}
#endif
/// <summary>
/// Adds a cubic B<>zier curve to the current figure.
/// </summary>
public void AddBezier(XPoint pt1, XPoint pt2, XPoint pt3, XPoint pt4)
{
AddBezier(pt1.X, pt1.Y, pt2.X, pt2.Y, pt3.X, pt3.Y, pt4.X, pt4.Y);
}
/// <summary>
/// Adds a cubic B<>zier curve to the current figure.
/// </summary>
public void AddBezier(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)
{
#if CORE
_corePath.MoveOrLineTo(x1, y1);
_corePath.BezierTo(x2, y2, x3, y3, x4, y4, false);
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddBezier((float)x1, (float)y1, (float)x2, (float)y2, (float)x3, (float)y3, (float)x4, (float)y4);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
PathFigure figure = CurrentPathFigure;
if (figure.Segments.Count == 0)
figure.StartPoint = new SysPoint(x1, y1);
else
{
// figure.Segments.Add(new LineSegment(new SysPoint(x1, y1), true));
#if !SILVERLIGHT
LineSegment lineSegment = new LineSegment(new SysPoint(x1, y1), true);
#else
LineSegment lineSegment = new LineSegment();
lineSegment.Point = new Point(x1, y1);
#endif
figure.Segments.Add(lineSegment);
}
//figure.Segments.Add(new BezierSegment(
// new SysPoint(x2, y2),
// new SysPoint(x3, y3),
// new SysPoint(x4, y4), true));
#if !SILVERLIGHT
BezierSegment bezierSegment = new BezierSegment(
new SysPoint(x2, y2),
new SysPoint(x3, y3),
new SysPoint(x4, y4), true);
#else
BezierSegment bezierSegment = new BezierSegment();
bezierSegment.Point1 = new Point(x2, y2);
bezierSegment.Point2 = new Point(x3, y3);
bezierSegment.Point3 = new Point(x4, y4);
#endif
figure.Segments.Add(bezierSegment);
#endif
}
// ----- AddBeziers ---------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a sequence of connected cubic B<>zier curves to the current figure.
/// </summary>
public void AddBeziers(System.Drawing.Point[] points)
{
AddBeziers(XGraphics.MakeXPointArray(points, 0, points.Length));
}
#endif
#if WPF
/// <summary>
/// Adds a sequence of connected cubic B<>zier curves to the current figure.
/// </summary>
public void AddBeziers(SysPoint[] points)
{
AddBeziers(XGraphics.MakeXPointArray(points, 0, points.Length));
}
#endif
#if GDI
/// <summary>
/// Adds a sequence of connected cubic B<>zier curves to the current figure.
/// </summary>
public void AddBeziers(PointF[] points)
{
AddBeziers(XGraphics.MakeXPointArray(points, 0, points.Length));
}
#endif
/// <summary>
/// Adds a sequence of connected cubic B<>zier curves to the current figure.
/// </summary>
public void AddBeziers(XPoint[] points)
{
if (points == null)
throw new ArgumentNullException("points");
int count = points.Length;
if (count < 4)
throw new ArgumentException("At least four points required for bezier curve.", "points");
if ((count - 1) % 3 != 0)
throw new ArgumentException("Invalid number of points for bezier curve. Number must fulfil 4+3n.",
"points");
#if CORE
_corePath.MoveOrLineTo(points[0].X, points[0].Y);
for (int idx = 1; idx < count; idx += 3)
{
_corePath.BezierTo(points[idx].X, points[idx].Y, points[idx + 1].X, points[idx + 1].Y,
points[idx + 2].X, points[idx + 2].Y, false);
}
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddBeziers(XGraphics.MakePointFArray(points));
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
PathFigure figure = CurrentPathFigure;
if (figure.Segments.Count == 0)
figure.StartPoint = new SysPoint(points[0].X, points[0].Y);
else
{
// figure.Segments.Add(new LineSegment(new SysPoint(points[0].x, points[0].y), true));
#if !SILVERLIGHT
LineSegment lineSegment = new LineSegment(new SysPoint(points[0].X, points[0].Y), true);
#else
LineSegment lineSegment = new LineSegment();
lineSegment.Point = new Point(points[0].X, points[0].Y);
#endif
figure.Segments.Add(lineSegment);
}
for (int idx = 1; idx < count; idx += 3)
{
//figure.Segments.Add(new BezierSegment(
// new SysPoint(points[idx].x, points[idx].y),
// new SysPoint(points[idx + 1].x, points[idx + 1].y),
// new SysPoint(points[idx + 2].x, points[idx + 2].y), true));
#if !SILVERLIGHT
BezierSegment bezierSegment = new BezierSegment(
new SysPoint(points[idx].X, points[idx].Y),
new SysPoint(points[idx + 1].X, points[idx + 1].Y),
new SysPoint(points[idx + 2].X, points[idx + 2].Y), true);
#else
BezierSegment bezierSegment = new BezierSegment();
bezierSegment.Point1 = new Point(points[idx].X, points[idx].Y);
bezierSegment.Point2 = new Point(points[idx + 1].X, points[idx + 1].Y);
bezierSegment.Point3 = new Point(points[idx + 2].X, points[idx + 2].Y);
#endif
figure.Segments.Add(bezierSegment);
}
#endif
}
// ----- AddCurve -----------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(System.Drawing.Point[] points)
{
AddCurve(XGraphics.MakeXPointArray(points, 0, points.Length));
}
#endif
#if WPF
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(SysPoint[] points)
{
AddCurve(XGraphics.MakeXPointArray(points, 0, points.Length));
}
#endif
#if GDI
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(PointF[] points)
{
AddCurve(XGraphics.MakeXPointArray(points, 0, points.Length));
}
#endif
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(XPoint[] points)
{
AddCurve(points, 0.5);
}
#if GDI
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(System.Drawing.Point[] points, double tension)
{
AddCurve(XGraphics.MakeXPointArray(points, 0, points.Length), tension);
}
#endif
#if WPF
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(SysPoint[] points, double tension)
{
AddCurve(XGraphics.MakeXPointArray(points, 0, points.Length), tension);
}
#endif
#if GDI
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(PointF[] points, double tension)
{
AddCurve(XGraphics.MakeXPointArray(points, 0, points.Length), tension);
}
#endif
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(XPoint[] points, double tension)
{
int count = points.Length;
if (count < 2)
throw new ArgumentException("AddCurve requires two or more points.", "points");
#if CORE
_corePath.AddCurve(points, tension);
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddCurve(XGraphics.MakePointFArray(points), (float)tension);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
tension /= 3;
PathFigure figure = CurrentPathFigure;
if (figure.Segments.Count == 0)
figure.StartPoint = new SysPoint(points[0].X, points[0].Y);
else
{
// figure.Segments.Add(new LineSegment(new SysPoint(points[0].x, points[0].y), true));
#if !SILVERLIGHT
LineSegment lineSegment = new LineSegment(new SysPoint(points[0].X, points[0].Y), true);
#else
LineSegment lineSegment = new LineSegment();
lineSegment.Point = new Point(points[0].X, points[0].Y);
#endif
figure.Segments.Add(lineSegment);
}
if (count == 2)
{
figure.Segments.Add(GeometryHelper.CreateCurveSegment(points[0], points[0], points[1], points[1], tension));
}
else
{
figure.Segments.Add(GeometryHelper.CreateCurveSegment(points[0], points[0], points[1], points[2], tension));
for (int idx = 1; idx < count - 2; idx++)
figure.Segments.Add(GeometryHelper.CreateCurveSegment(points[idx - 1], points[idx], points[idx + 1], points[idx + 2], tension));
figure.Segments.Add(GeometryHelper.CreateCurveSegment(points[count - 3], points[count - 2], points[count - 1], points[count - 1], tension));
}
#endif
}
#if GDI
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(System.Drawing.Point[] points, int offset, int numberOfSegments, float tension)
{
AddCurve(XGraphics.MakeXPointArray(points, 0, points.Length), offset, numberOfSegments, tension);
}
#endif
#if WPF
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(SysPoint[] points, int offset, int numberOfSegments, float tension)
{
AddCurve(XGraphics.MakeXPointArray(points, 0, points.Length), offset, numberOfSegments, tension);
}
#endif
#if GDI
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(PointF[] points, int offset, int numberOfSegments, float tension)
{
AddCurve(XGraphics.MakeXPointArray(points, 0, points.Length), offset, numberOfSegments, tension);
}
#endif
/// <summary>
/// Adds a spline curve to the current figure.
/// </summary>
public void AddCurve(XPoint[] points, int offset, int numberOfSegments, double tension)
{
#if CORE
throw new NotImplementedException("AddCurve not yet implemented.");
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddCurve(XGraphics.MakePointFArray(points), offset, numberOfSegments, (float)tension);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
throw new NotImplementedException("AddCurve not yet implemented.");
#endif
}
// ----- AddArc -------------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds an elliptical arc to the current figure.
/// </summary>
public void AddArc(Rectangle rect, double startAngle, double sweepAngle)
{
AddArc(rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle);
}
#endif
#if GDI
/// <summary>
/// Adds an elliptical arc to the current figure.
/// </summary>
public void AddArc(RectangleF rect, double startAngle, double sweepAngle)
{
AddArc(rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle);
}
#endif
/// <summary>
/// Adds an elliptical arc to the current figure.
/// </summary>
public void AddArc(XRect rect, double startAngle, double sweepAngle)
{
AddArc(rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle);
}
/// <summary>
/// Adds an elliptical arc to the current figure.
/// </summary>
public void AddArc(double x, double y, double width, double height, double startAngle, double sweepAngle)
{
#if CORE
_corePath.AddArc(x, y, width, height, startAngle, sweepAngle);
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddArc((float)x, (float)y, (float)width, (float)height, (float)startAngle, (float)sweepAngle);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
PathFigure figure = CurrentPathFigure;
SysPoint startPoint;
ArcSegment seg = GeometryHelper.CreateArcSegment(x, y, width, height, startAngle, sweepAngle, out startPoint);
if (figure.Segments.Count == 0)
figure.StartPoint = startPoint;
else
{
//#if !SILVERLIGHT
// LineSegment lineSegment = new LineSegment(startPoint, true);
//#else
LineSegment lineSegment = new LineSegment();
lineSegment.Point = startPoint;
//#endif
figure.Segments.Add(lineSegment);
}
figure.Segments.Add(seg);
//figure.Segments.Add(
//if (figure.Segments.Count == 0)
// figure.StartPoint = new SysPoint(points[0].x, points[0].y);
//else
// figure.Segments.Add(new LineSegment(new SysPoint(points[0].x, points[0].y), true));
//for (int idx = 1; idx < 5555; idx += 3)
// figure.Segments.Add(new BezierSegment(
// new SysPoint(points[idx].x, points[idx].y),
// new SysPoint(points[idx + 1].x, points[idx + 1].y),
// new SysPoint(points[idx + 2].x, points[idx + 2].y), true));
#endif
}
/// <summary>
/// Adds an elliptical arc to the current figure. The arc is specified WPF like.
/// </summary>
public void AddArc(XPoint point1, XPoint point2, XSize size, double rotationAngle, bool isLargeArg, XSweepDirection sweepDirection)
{
#if CORE
_corePath.AddArc(point1, point2, size, rotationAngle, isLargeArg, sweepDirection);
#endif
#if GDI
DiagnosticsHelper.HandleNotImplemented("XGraphicsPath.AddArc");
#endif
#if WPF
PathFigure figure = CurrentPathFigure;
if (figure.Segments.Count == 0)
figure.StartPoint = point1.ToPoint();
else
{
// figure.Segments.Add(new LineSegment(point1.ToPoint(), true));
#if !SILVERLIGHT
LineSegment lineSegment = new LineSegment(point1.ToPoint(), true);
#else
LineSegment lineSegment = new LineSegment();
lineSegment.Point = point1.ToPoint();
#endif
figure.Segments.Add(lineSegment);
}
// figure.Segments.Add(new ArcSegment(point2.ToPoint(), size.ToSize(), rotationAngle, isLargeArg, sweepDirection, true));
#if !SILVERLIGHT
ArcSegment arcSegment = new ArcSegment(point2.ToPoint(), size.ToSize(), rotationAngle, isLargeArg, (SweepDirection)sweepDirection, true);
#else
ArcSegment arcSegment = new ArcSegment();
arcSegment.Point = point2.ToPoint();
arcSegment.Size = size.ToSize();
arcSegment.RotationAngle = rotationAngle;
arcSegment.IsLargeArc = isLargeArg;
arcSegment.SweepDirection = (SweepDirection)sweepDirection;
#endif
figure.Segments.Add(arcSegment);
#endif
}
// ----- AddRectangle -------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a rectangle to this path.
/// </summary>
public void AddRectangle(Rectangle rect)
{
AddRectangle(new XRect(rect));
}
#endif
#if GDI
/// <summary>
/// Adds a rectangle to this path.
/// </summary>
public void AddRectangle(RectangleF rect)
{
AddRectangle(new XRect(rect));
}
#endif
/// <summary>
/// Adds a rectangle to this path.
/// </summary>
public void AddRectangle(XRect rect)
{
#if CORE
_corePath.MoveTo(rect.X, rect.Y);
_corePath.LineTo(rect.X + rect.Width, rect.Y, false);
_corePath.LineTo(rect.X + rect.Width, rect.Y + rect.Height, false);
_corePath.LineTo(rect.X, rect.Y + rect.Height, true);
_corePath.CloseSubpath();
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
// If rect is empty GDI+ removes the rect from the path.
// This is not intended if the path is used for clipping.
// See http://forum.pdfsharp.net/viewtopic.php?p=9433#p9433
// _gdipPath.AddRectangle(rect.ToRectangleF());
// Draw the rectangle manually.
_gdipPath.StartFigure();
_gdipPath.AddLines(new PointF[] { rect.TopLeft.ToPointF(), rect.TopRight.ToPointF(), rect.BottomRight.ToPointF(), rect.BottomLeft.ToPointF() });
_gdipPath.CloseFigure();
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
StartFigure();
PathFigure figure = CurrentPathFigure;
figure.StartPoint = new SysPoint(rect.X, rect.Y);
// figure.Segments.Add(new LineSegment(new SysPoint(rect.x + rect.width, rect.y), true));
// figure.Segments.Add(new LineSegment(new SysPoint(rect.x + rect.width, rect.y + rect.height), true));
// figure.Segments.Add(new LineSegment(new SysPoint(rect.x, rect.y + rect.height), true));
#if !SILVERLIGHT
LineSegment lineSegment1 = new LineSegment(new SysPoint(rect.X + rect.Width, rect.Y), true);
LineSegment lineSegment2 = new LineSegment(new SysPoint(rect.X + rect.Width, rect.Y + rect.Height), true);
LineSegment lineSegment3 = new LineSegment(new SysPoint(rect.X, rect.Y + rect.Height), true);
#else
LineSegment lineSegment1 = new LineSegment();
lineSegment1.Point = new Point(rect.X + rect.Width, rect.Y);
LineSegment lineSegment2 = new LineSegment();
lineSegment2.Point = new Point(rect.X + rect.Width, rect.Y + rect.Height);
LineSegment lineSegment3 = new LineSegment();
lineSegment3.Point = new Point(rect.X, rect.Y + rect.Height);
#endif
figure.Segments.Add(lineSegment1);
figure.Segments.Add(lineSegment2);
figure.Segments.Add(lineSegment3);
CloseFigure();
#endif
}
/// <summary>
/// Adds a rectangle to this path.
/// </summary>
public void AddRectangle(double x, double y, double width, double height)
{
AddRectangle(new XRect(x, y, width, height));
}
// ----- AddRectangles ------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a series of rectangles to this path.
/// </summary>
public void AddRectangles(Rectangle[] rects)
{
int count = rects.Length;
for (int idx = 0; idx < count; idx++)
AddRectangle(rects[idx]);
try
{
Lock.EnterGdiPlus();
_gdipPath.AddRectangles(rects);
}
finally { Lock.ExitGdiPlus(); }
}
#endif
#if GDI
/// <summary>
/// Adds a series of rectangles to this path.
/// </summary>
public void AddRectangles(RectangleF[] rects)
{
int count = rects.Length;
for (int idx = 0; idx < count; idx++)
AddRectangle(rects[idx]);
try
{
Lock.EnterGdiPlus();
_gdipPath.AddRectangles(rects);
}
finally { Lock.ExitGdiPlus(); }
}
#endif
/// <summary>
/// Adds a series of rectangles to this path.
/// </summary>
public void AddRectangles(XRect[] rects)
{
int count = rects.Length;
for (int idx = 0; idx < count; idx++)
{
#if CORE
AddRectangle(rects[idx]);
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddRectangle(rects[idx].ToRectangleF());
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
StartFigure();
PathFigure figure = CurrentPathFigure;
XRect rect = rects[idx];
figure.StartPoint = new SysPoint(rect.X, rect.Y);
// figure.Segments.Add(new LineSegment(new SysPoint(rect.x + rect.width, rect.y), true));
// figure.Segments.Add(new LineSegment(new SysPoint(rect.x + rect.width, rect.y + rect.height), true));
// figure.Segments.Add(new LineSegment(new SysPoint(rect.x, rect.y + rect.height), true));
#if !SILVERLIGHT
LineSegment lineSegment1 = new LineSegment(new SysPoint(rect.X + rect.Width, rect.Y), true);
LineSegment lineSegment2 = new LineSegment(new SysPoint(rect.X + rect.Width, rect.Y + rect.Height), true);
LineSegment lineSegment3 = new LineSegment(new SysPoint(rect.X, rect.Y + rect.Height), true);
#else
LineSegment lineSegment1 = new LineSegment();
lineSegment1.Point = new Point(rect.X + rect.Width, rect.Y);
LineSegment lineSegment2 = new LineSegment();
lineSegment2.Point = new Point(rect.X + rect.Width, rect.Y + rect.Height);
LineSegment lineSegment3 = new LineSegment();
lineSegment3.Point = new Point(rect.X, rect.Y + rect.Height);
#endif
figure.Segments.Add(lineSegment1);
figure.Segments.Add(lineSegment2);
figure.Segments.Add(lineSegment3);
CloseFigure();
#endif
}
}
// ----- AddRoundedRectangle ------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a rectangle with rounded corners to this path.
/// </summary>
public void AddRoundedRectangle(Rectangle rect, System.Drawing.Size ellipseSize)
{
AddRoundedRectangle(rect.X, rect.Y, rect.Width, rect.Height, ellipseSize.Width, ellipseSize.Height);
}
#endif
#if WPF || NETFX_CORE
/// <summary>
/// Adds a rectangle with rounded corners to this path.
/// </summary>
public void AddRoundedRectangle(SysRect rect, SysSize ellipseSize)
{
AddRoundedRectangle(rect.X, rect.Y, rect.Width, rect.Height, ellipseSize.Width, ellipseSize.Height);
}
#endif
#if GDI
/// <summary>
/// Adds a rectangle with rounded corners to this path.
/// </summary>
public void AddRoundedRectangle(RectangleF rect, SizeF ellipseSize)
{
AddRoundedRectangle(rect.X, rect.Y, rect.Width, rect.Height, ellipseSize.Width, ellipseSize.Height);
}
#endif
#if GDI
/// <summary>
/// Adds a rectangle with rounded corners to this path.
/// </summary>
public void AddRoundedRectangle(XRect rect, SizeF ellipseSize)
{
AddRoundedRectangle(rect.X, rect.Y, rect.Width, rect.Height, ellipseSize.Width, ellipseSize.Height);
}
#endif
/// <summary>
/// Adds a rectangle with rounded corners to this path.
/// </summary>
public void AddRoundedRectangle(double x, double y, double width, double height, double ellipseWidth, double ellipseHeight)
{
#if CORE
#if true
double arcWidth = ellipseWidth / 2;
double arcHeight = ellipseHeight / 2;
#if true // Clockwise
_corePath.MoveTo(x + width - arcWidth, y);
_corePath.QuadrantArcTo(x + width - arcWidth, y + arcHeight, arcWidth, arcHeight, 1, true);
_corePath.LineTo(x + width, y + height - arcHeight, false);
_corePath.QuadrantArcTo(x + width - arcWidth, y + height - arcHeight, arcWidth, arcHeight, 4, true);
_corePath.LineTo(x + arcWidth, y + height, false);
_corePath.QuadrantArcTo(x + arcWidth, y + height - arcHeight, arcWidth, arcHeight, 3, true);
_corePath.LineTo(x, y + arcHeight, false);
_corePath.QuadrantArcTo(x + arcWidth, y + arcHeight, arcWidth, arcHeight, 2, true);
_corePath.CloseSubpath();
#else // Counterclockwise
_corePath.MoveTo(x + arcWidth, y);
_corePath.QuadrantArcTo(x + arcWidth, y + arcHeight, arcWidth, arcHeight, 2, false);
_corePath.LineTo(x, y + height - arcHeight, false);
_corePath.QuadrantArcTo(x + arcWidth, y + height - arcHeight, arcWidth, arcHeight, 3, false);
_corePath.LineTo(x + width - arcWidth, y + height, false);
_corePath.QuadrantArcTo(x + width - arcWidth, y + height - arcHeight, arcWidth, arcHeight, 4, false);
_corePath.LineTo(x + width, y + arcHeight, false);
_corePath.QuadrantArcTo(x + width - arcWidth, y + arcHeight, arcWidth, arcHeight, 1, false);
_corePath.CloseSubpath();
#endif
#else
// AddArc not yet implemented
AddArc((float)(x + width - ellipseWidth), (float)y, (float)ellipseWidth, (float)ellipseHeight, -90, 90);
AddArc((float)(x + width - ellipseWidth), (float)(y + height - ellipseHeight), (float)ellipseWidth,
(float)ellipseHeight, 0, 90);
AddArc((float)x, (float)(y + height - ellipseHeight), (float)ellipseWidth, (float)ellipseHeight, 90, 90);
AddArc((float)x, (float)y, (float)ellipseWidth, (float)ellipseHeight, 180, 90);
CloseFigure();
#endif
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.StartFigure();
_gdipPath.AddArc((float)(x + width - ellipseWidth), (float)y, (float)ellipseWidth, (float)ellipseHeight, -90, 90);
_gdipPath.AddArc((float)(x + width - ellipseWidth), (float)(y + height - ellipseHeight), (float)ellipseWidth, (float)ellipseHeight, 0, 90);
_gdipPath.AddArc((float)x, (float)(y + height - ellipseHeight), (float)ellipseWidth, (float)ellipseHeight, 90, 90);
_gdipPath.AddArc((float)x, (float)y, (float)ellipseWidth, (float)ellipseHeight, 180, 90);
_gdipPath.CloseFigure();
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
double ex = ellipseWidth / 2;
double ey = ellipseHeight / 2;
StartFigure();
PathFigure figure = CurrentPathFigure;
figure.StartPoint = new SysPoint(x + ex, y);
//#if !SILVERLIGHT
// figure.Segments.Add(new LineSegment(new SysPoint(x + width - ex, y), true));
// // TODOWPF XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXx
// figure.Segments.Add(new ArcSegment(new SysPoint(x + width, y + ey), new SysSize(ex, ey), 0, false, SweepDirection.Clockwise, true));
// //figure.Segments.Add(new LineSegment(new SysPoint(x + width, y + ey), true));
// figure.Segments.Add(new LineSegment(new SysPoint(x + width, y + height - ey), true));
// // TODOWPF
// figure.Segments.Add(new ArcSegment(new SysPoint(x + width - ex, y + height), new SysSize(ex, ey), 0, false, SweepDirection.Clockwise, true));
// //figure.Segments.Add(new LineSegment(new SysPoint(x + width - ex, y + height), true));
// figure.Segments.Add(new LineSegment(new SysPoint(x + ex, y + height), true));
// // TODOWPF
// figure.Segments.Add(new ArcSegment(new SysPoint(x, y + height - ey), new SysSize(ex, ey), 0, false, SweepDirection.Clockwise, true));
// //figure.Segments.Add(new LineSegment(new SysPoint(x, y + height - ey), true));
// figure.Segments.Add(new LineSegment(new SysPoint(x, y + ey), true));
// // TODOWPF
// figure.Segments.Add(new ArcSegment(new SysPoint(x + ex, y), new SysSize(ex, ey), 0, false, SweepDirection.Clockwise, true));
// //figure.Segments.Add(new LineSegment(new SysPoint(x + ex, y), true));
//#else
#if !SILVERLIGHT && !NETFX_CORE
figure.Segments.Add(new LineSegment(new SysPoint(x + width - ex, y), true));
#else
figure.Segments.Add(new LineSegment { Point = new SysPoint(x + width - ex, y) });
#endif
// TODOWPF XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXx
#if !SILVERLIGHT && !NETFX_CORE
figure.Segments.Add(new ArcSegment(new SysPoint(x + width, y + ey), new SysSize(ex, ey), 0, false, SweepDirection.Clockwise, true));
//figure.Segments.Add(new LineSegment(new SysPoint(x + width, y + ey), true));
#else
figure.Segments.Add(new ArcSegment
{
Point = new SysPoint(x + width, y + ey),
Size = new SysSize(ex, ey),
//RotationAngle = 0,
//IsLargeArc = false,
SweepDirection = SweepDirection.Clockwise
});
#endif
#if !SILVERLIGHT && !NETFX_CORE
figure.Segments.Add(new LineSegment(new SysPoint(x + width, y + height - ey), true));
#else
figure.Segments.Add(new LineSegment { Point = new SysPoint(x + width, y + height - ey) });
#endif
// TODOWPF
#if !SILVERLIGHT && !NETFX_CORE
figure.Segments.Add(new ArcSegment(new SysPoint(x + width - ex, y + height), new SysSize(ex, ey), 0, false, SweepDirection.Clockwise, true));
//figure.Segments.Add(new LineSegment(new SysPoint(x + width - ex, y + height), true));
#else
figure.Segments.Add(new ArcSegment
{
Point = new SysPoint(x + width - ex, y + height),
Size = new SysSize(ex, ey),
//RotationAngle = 0,
//IsLargeArc = false,
SweepDirection = SweepDirection.Clockwise
});
#endif
#if !SILVERLIGHT && !NETFX_CORE
figure.Segments.Add(new LineSegment(new SysPoint(x + ex, y + height), true));
#else
figure.Segments.Add(new LineSegment { Point = new SysPoint(x + ex, y + height) });
#endif
// TODOWPF
#if !SILVERLIGHT && !NETFX_CORE
figure.Segments.Add(new ArcSegment(new SysPoint(x, y + height - ey), new SysSize(ex, ey), 0, false, SweepDirection.Clockwise, true));
//figure.Segments.Add(new LineSegment(new SysPoint(x, y + height - ey), true));
#else
figure.Segments.Add(new ArcSegment
{
Point = new SysPoint(x, y + height - ey),
Size = new SysSize(ex, ey),
//RotationAngle = 0,
//IsLargeArc = false,
SweepDirection = SweepDirection.Clockwise
});
#endif
#if !SILVERLIGHT && !NETFX_CORE
figure.Segments.Add(new LineSegment(new SysPoint(x, y + ey), true));
#else
figure.Segments.Add(new LineSegment { Point = new SysPoint(x, y + ey) });
#endif
// TODOWPF
#if !SILVERLIGHT && !NETFX_CORE
figure.Segments.Add(new ArcSegment(new SysPoint(x + ex, y), new SysSize(ex, ey), 0, false, SweepDirection.Clockwise, true));
//figure.Segments.Add(new LineSegment(new SysPoint(x + ex, y), true));
#else
figure.Segments.Add(new ArcSegment
{
Point = new SysPoint(x + ex, y),
Size = new SysSize(ex, ey),
//RotationAngle = 0,
//IsLargeArc = false,
SweepDirection = SweepDirection.Clockwise
});
#endif
CloseFigure();
#endif
}
// ----- AddEllipse ---------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds an ellipse to the current path.
/// </summary>
public void AddEllipse(Rectangle rect)
{
AddEllipse(rect.X, rect.Y, rect.Width, rect.Height);
}
#endif
#if GDI
/// <summary>
/// Adds an ellipse to the current path.
/// </summary>
public void AddEllipse(RectangleF rect)
{
AddEllipse(rect.X, rect.Y, rect.Width, rect.Height);
}
#endif
/// <summary>
/// Adds an ellipse to the current path.
/// </summary>
public void AddEllipse(XRect rect)
{
AddEllipse(rect.X, rect.Y, rect.Width, rect.Height);
}
/// <summary>
/// Adds an ellipse to the current path.
/// </summary>
public void AddEllipse(double x, double y, double width, double height)
{
#if CORE
double w = width / 2;
double h = height / 2;
double xc = x + w;
double yc = y + h;
_corePath.MoveTo(x + w, y);
_corePath.QuadrantArcTo(xc, yc, w, h, 1, true);
_corePath.QuadrantArcTo(xc, yc, w, h, 4, true);
_corePath.QuadrantArcTo(xc, yc, w, h, 3, true);
_corePath.QuadrantArcTo(xc, yc, w, h, 2, true);
_corePath.CloseSubpath();
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddEllipse((float)x, (float)y, (float)width, (float)height);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
#if !SILVERLIGHT && !NETFX_CORE
_pathGeometry.AddGeometry(new EllipseGeometry(new Rect(x, y, width, height)));
#else
var figure = new PathFigure();
figure.StartPoint = new SysPoint(x, y + height / 2);
var segment = new ArcSegment
{
Point = new SysPoint(x + width, y + height / 2),
Size = new SysSize(width / 2, height / 2),
IsLargeArc = true,
RotationAngle = 180,
SweepDirection = SweepDirection.Clockwise,
};
figure.Segments.Add(segment);
segment = new ArcSegment
{
Point = figure.StartPoint,
Size = new SysSize(width / 2, height / 2),
IsLargeArc = true,
RotationAngle = 180,
SweepDirection = SweepDirection.Clockwise,
};
figure.Segments.Add(segment);
_pathGeometry.Figures.Add(figure);
#endif
// StartFigure() isn't needed because AddGeometry() implicitly starts a new figure,
// but CloseFigure() is needed for the next adding not to continue this figure.
CloseFigure();
#endif
}
// ----- AddPolygon ---------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a polygon to this path.
/// </summary>
public void AddPolygon(System.Drawing.Point[] points)
{
try
{
Lock.EnterGdiPlus();
_gdipPath.AddPolygon(points);
}
finally { Lock.ExitGdiPlus(); }
}
#endif
#if WPF || NETFX_CORE
/// <summary>
/// Adds a polygon to this path.
/// </summary>
public void AddPolygon(SysPoint[] points)
{
// TODO: fill mode unclear here
#if !SILVERLIGHT && !NETFX_CORE
_pathGeometry.AddGeometry(GeometryHelper.CreatePolygonGeometry(points, XFillMode.Alternate, true));
CloseFigure(); // StartFigure() isn't needed because AddGeometry() implicitly starts a new figure, but CloseFigure() is needed for the next adding not to continue this figure.
#else
AddPolygon(XGraphics.MakeXPointArray(points, 0, points.Length));
#endif
}
#endif
#if GDI
/// <summary>
/// Adds a polygon to this path.
/// </summary>
public void AddPolygon(PointF[] points)
{
try
{
Lock.EnterGdiPlus();
_gdipPath.AddPolygon(points);
}
finally { Lock.ExitGdiPlus(); }
}
#endif
/// <summary>
/// Adds a polygon to this path.
/// </summary>
public void AddPolygon(XPoint[] points)
{
#if CORE
int count = points.Length;
if (count == 0)
return;
_corePath.MoveTo(points[0].X, points[0].Y);
for (int idx = 0; idx < count - 1; idx++)
_corePath.LineTo(points[idx].X, points[idx].Y, false);
_corePath.LineTo(points[count - 1].X, points[count - 1].Y, true);
_corePath.CloseSubpath();
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddPolygon(XGraphics.MakePointFArray(points));
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
#if !SILVERLIGHT && !NETFX_CORE
_pathGeometry.AddGeometry(GeometryHelper.CreatePolygonGeometry(XGraphics.MakePointArray(points), XFillMode.Alternate, true));
#else
var figure = new PathFigure();
figure.StartPoint = new SysPoint(points[0].X, points[0].Y);
figure.IsClosed = true;
PolyLineSegment segment = new PolyLineSegment();
int count = points.Length;
// For correct drawing the start point of the segment must not be the same as the first point.
for (int idx = 1; idx < count; idx++)
segment.Points.Add(new SysPoint(points[idx].X, points[idx].Y));
#if !SILVERLIGHT && !NETFX_CORE
seg.IsStroked = true;
#endif
figure.Segments.Add(segment);
_pathGeometry.Figures.Add(figure);
#endif
// TODO: NOT NEEDED
//CloseFigure(); // StartFigure() isn't needed because AddGeometry() implicitly starts a new figure, but CloseFigure() is needed for the next adding not to continue this figure.
#endif
}
// ----- AddPie -------------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds the outline of a pie shape to this path.
/// </summary>
public void AddPie(Rectangle rect, double startAngle, double sweepAngle)
{
try
{
Lock.EnterGdiPlus();
_gdipPath.AddPie(rect, (float)startAngle, (float)sweepAngle);
}
finally { Lock.ExitGdiPlus(); }
}
#endif
#if GDI
/// <summary>
/// Adds the outline of a pie shape to this path.
/// </summary>
public void AddPie(RectangleF rect, double startAngle, double sweepAngle)
{
AddPie(rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle);
}
#endif
/// <summary>
/// Adds the outline of a pie shape to this path.
/// </summary>
public void AddPie(XRect rect, double startAngle, double sweepAngle)
{
AddPie(rect.X, rect.Y, rect.Width, rect.Height, startAngle, sweepAngle);
}
/// <summary>
/// Adds the outline of a pie shape to this path.
/// </summary>
public void AddPie(double x, double y, double width, double height, double startAngle, double sweepAngle)
{
#if CORE
DiagnosticsHelper.HandleNotImplemented("XGraphicsPath.AddPie");
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddPie((float)x, (float)y, (float)width, (float)height, (float)startAngle, (float)sweepAngle);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
DiagnosticsHelper.HandleNotImplemented("XGraphicsPath.AddPie");
#endif
}
// ----- AddClosedCurve ------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a closed curve to this path.
/// </summary>
public void AddClosedCurve(System.Drawing.Point[] points)
{
AddClosedCurve(XGraphics.MakeXPointArray(points, 0, points.Length), 0.5);
}
#endif
#if WPF || NETFX_CORE
/// <summary>
/// Adds a closed curve to this path.
/// </summary>
public void AddClosedCurve(SysPoint[] points)
{
AddClosedCurve(XGraphics.MakeXPointArray(points, 0, points.Length), 0.5);
}
#endif
#if GDI
/// <summary>
/// Adds a closed curve to this path.
/// </summary>
public void AddClosedCurve(PointF[] points)
{
AddClosedCurve(XGraphics.MakeXPointArray(points, 0, points.Length), 0.5);
}
#endif
/// <summary>
/// Adds a closed curve to this path.
/// </summary>
public void AddClosedCurve(XPoint[] points)
{
AddClosedCurve(points, 0.5);
}
#if GDI
/// <summary>
/// Adds a closed curve to this path.
/// </summary>
public void AddClosedCurve(System.Drawing.Point[] points, double tension)
{
AddClosedCurve(XGraphics.MakeXPointArray(points, 0, points.Length), tension);
}
#endif
#if WPF || NETFX_CORE
/// <summary>
/// Adds a closed curve to this path.
/// </summary>
public void AddClosedCurve(SysPoint[] points, double tension)
{
AddClosedCurve(XGraphics.MakeXPointArray(points, 0, points.Length), tension);
}
#endif
#if GDI
/// <summary>
/// Adds a closed curve to this path.
/// </summary>
public void AddClosedCurve(PointF[] points, double tension)
{
AddClosedCurve(XGraphics.MakeXPointArray(points, 0, points.Length), tension);
}
#endif
/// <summary>
/// Adds a closed curve to this path.
/// </summary>
public void AddClosedCurve(XPoint[] points, double tension)
{
if (points == null)
throw new ArgumentNullException("points");
int count = points.Length;
if (count == 0)
return;
if (count < 2)
throw new ArgumentException("Not enough points.", "points");
#if CORE
DiagnosticsHelper.HandleNotImplemented("XGraphicsPath.AddClosedCurve");
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddClosedCurve(XGraphics.MakePointFArray(points), (float)tension);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF ||NETFX_CORE
tension /= 3;
StartFigure();
PathFigure figure = CurrentPathFigure;
figure.StartPoint = new SysPoint(points[0].X, points[0].Y);
if (count == 2)
{
figure.Segments.Add(GeometryHelper.CreateCurveSegment(points[0], points[0], points[1], points[1], tension));
}
else
{
figure.Segments.Add(GeometryHelper.CreateCurveSegment(points[count - 1], points[0], points[1], points[2], tension));
for (int idx = 1; idx < count - 2; idx++)
figure.Segments.Add(GeometryHelper.CreateCurveSegment(points[idx - 1], points[idx], points[idx + 1], points[idx + 2], tension));
figure.Segments.Add(GeometryHelper.CreateCurveSegment(points[count - 3], points[count - 2], points[count - 1], points[0], tension));
figure.Segments.Add(GeometryHelper.CreateCurveSegment(points[count - 2], points[count - 1], points[0], points[1], tension));
}
#endif
}
// ----- AddPath ------------------------------------------------------------------------------
/// <summary>
/// Adds the specified path to this path.
/// </summary>
public void AddPath(XGraphicsPath path, bool connect)
{
#if CORE
DiagnosticsHelper.HandleNotImplemented("XGraphicsPath.AddPath");
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.AddPath(path._gdipPath, connect);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
#if !SILVERLIGHT && !NETFX_CORE
_pathGeometry.AddGeometry(path._pathGeometry);
#else
// AG-HACK: No AddGeometry in Silverlight version of PathGeometry
throw new InvalidOperationException("Silverlight/WinRT cannot merge geometry objects.");
// TODO: make it manually by using a GeometryGroup
#endif
#endif
}
// ----- AddString ----------------------------------------------------------------------------
#if GDI
/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, System.Drawing.Point origin, XStringFormat format)
{
AddString(s, family, style, emSize, new XRect(origin.X, origin.Y, 0, 0), format);
}
#endif
#if WPF || NETFX_CORE
/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, SysPoint origin, XStringFormat format)
{
AddString(s, family, style, emSize, new XPoint(origin), format);
}
#endif
#if GDI
/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, PointF origin, XStringFormat format)
{
AddString(s, family, style, emSize, new XRect(origin.X, origin.Y, 0, 0), format);
}
#endif
/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, XPoint origin,
XStringFormat format)
{
try
{
#if CORE
DiagnosticsHelper.HandleNotImplemented("XGraphicsPath.AddString");
#endif
#if GDI
if (family.GdiFamily == null)
throw new NotFiniteNumberException(PSSR.NotImplementedForFontsRetrievedWithFontResolver(family.Name));
PointF p = origin.ToPointF();
p.Y += SimulateBaselineOffset(family, style, emSize, format);
try
{
Lock.EnterGdiPlus();
_gdipPath.AddString(s, family.GdiFamily, (int)style, (float)emSize, p, format.RealizeGdiStringFormat());
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF
if (family.WpfFamily == null)
throw new NotFiniteNumberException(PSSR.NotImplementedForFontsRetrievedWithFontResolver(family.Name));
#if !SILVERLIGHT
XFont font = new XFont(family.Name, emSize, style);
double x = origin.X;
double y = origin.Y;
double lineSpace = font.GetHeight();
double cyAscent = lineSpace * font.CellAscent / font.CellSpace;
double cyDescent = lineSpace * font.CellDescent / font.CellSpace;
Typeface typeface = FontHelper.CreateTypeface(family.WpfFamily, style);
FormattedText formattedText = FontHelper.CreateFormattedText(s, typeface, emSize, WpfBrushes.Black);
switch (format.Alignment)
{
case XStringAlignment.Near:
// nothing to do, this is the default
//formattedText.TextAlignment = TextAlignment.Left;
break;
case XStringAlignment.Center:
formattedText.TextAlignment = TextAlignment.Center;
break;
case XStringAlignment.Far:
formattedText.TextAlignment = TextAlignment.Right;
break;
}
switch (format.LineAlignment)
{
case XLineAlignment.Near:
//y += cyAscent;
break;
case XLineAlignment.Center:
// TODO use CapHeight. PDFlib also uses 3/4 of ascent
y += -lineSpace / 2; //-formattedText.Baseline + (cyAscent * 2 / 4);
break;
case XLineAlignment.Far:
y += -formattedText.Baseline - cyDescent;
break;
case XLineAlignment.BaseLine:
y -= formattedText.Baseline;
break;
}
Geometry geo = formattedText.BuildGeometry(new XPoint(x, y));
_pathGeometry.AddGeometry(geo);
#else
// AG-HACK
throw new InvalidOperationException("Silverlight cannot create geometry of glyphs.");
// TODO: Get the outline directly from the font.
#endif
#endif
}
catch
{
throw;
}
}
#if GDI
/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, Rectangle layoutRect, XStringFormat format)
{
if (family.GdiFamily == null)
throw new NotFiniteNumberException(PSSR.NotImplementedForFontsRetrievedWithFontResolver(family.Name));
Rectangle rect = new Rectangle(layoutRect.X, layoutRect.Y, layoutRect.Width, layoutRect.Height);
rect.Offset(new System.Drawing.Point(0, (int)SimulateBaselineOffset(family, style, emSize, format)));
try
{
Lock.EnterGdiPlus();
_gdipPath.AddString(s, family.GdiFamily, (int)style, (float)emSize, rect, format.RealizeGdiStringFormat());
}
finally { Lock.ExitGdiPlus(); }
}
/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, RectangleF layoutRect, XStringFormat format)
{
if (family.GdiFamily == null)
throw new NotFiniteNumberException(PSSR.NotImplementedForFontsRetrievedWithFontResolver(family.Name));
RectangleF rect = new RectangleF(layoutRect.X, layoutRect.Y, layoutRect.Width, layoutRect.Height);
rect.Offset(new PointF(0, SimulateBaselineOffset(family, style, emSize, format)));
try
{
Lock.EnterGdiPlus();
_gdipPath.AddString(s, family.GdiFamily, (int)style, (float)emSize, layoutRect, format.RealizeGdiStringFormat());
}
finally { Lock.ExitGdiPlus(); }
}
/// <summary>
/// Calculates the offset for BaseLine positioning simulation:
/// In GDI we have only Near, Center and Far as LineAlignment and no BaseLine. For XLineAlignment.BaseLine StringAlignment.Near is returned.
/// We now return the negative drawed ascender height.
/// This has to be added to the LayoutRect/Origin before each _gdipPath.AddString().
/// </summary>
/// <param name="family"></param>
/// <param name="style"></param>
/// <param name="emSize"></param>
/// <param name="format"></param>
/// <returns></returns>
private float SimulateBaselineOffset(XFontFamily family, XFontStyle style, double emSize, XStringFormat format)
{
XFont font = new XFont(family.Name, emSize, style);
if (format.LineAlignment == XLineAlignment.BaseLine)
{
double lineSpace = font.GetHeight();
int cellSpace = font.FontFamily.GetLineSpacing(font.Style);
int cellAscent = font.FontFamily.GetCellAscent(font.Style);
int cellDescent = font.FontFamily.GetCellDescent(font.Style);
double cyAscent = lineSpace * cellAscent / cellSpace;
cyAscent = lineSpace * font.CellAscent / font.CellSpace;
return (float)-cyAscent;
}
return 0;
}
#endif
#if WPF
/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, Rect rect, XStringFormat format)
{
//gdip Path.AddString(s, family.gdiFamily, (int)style, (float)emSize, layoutRect, format.RealizeGdiStringFormat());
AddString(s, family, style, emSize, new XRect(rect), format);
}
#endif
/// <summary>
/// Adds a text string to this path.
/// </summary>
public void AddString(string s, XFontFamily family, XFontStyle style, double emSize, XRect layoutRect,
XStringFormat format)
{
if (s == null)
throw new ArgumentNullException("s");
if (family == null)
throw new ArgumentNullException("family");
if (format == null)
format = XStringFormats.Default;
if (format.LineAlignment == XLineAlignment.BaseLine && layoutRect.Height != 0)
throw new InvalidOperationException(
"DrawString: With XLineAlignment.BaseLine the height of the layout rectangle must be 0.");
if (s.Length == 0)
return;
XFont font = new XFont(family.Name, emSize, style);
#if CORE
DiagnosticsHelper.HandleNotImplemented("XGraphicsPath.AddString");
#endif
#if (GDI || CORE_) && !WPF
//Gfx.DrawString(text, font.Realize_GdiFont(), brush.RealizeGdiBrush(), rect,
// format != null ? format.RealizeGdiStringFormat() : null);
if (family.GdiFamily == null)
throw new NotFiniteNumberException(PSSR.NotImplementedForFontsRetrievedWithFontResolver(family.Name));
RectangleF rect = layoutRect.ToRectangleF();
rect.Offset(new PointF(0, SimulateBaselineOffset(family, style, emSize, format)));
try
{
Lock.EnterGdiPlus();
_gdipPath.AddString(s, family.GdiFamily, (int)style, (float)emSize, rect, format.RealizeGdiStringFormat());
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF && !GDI
if (family.WpfFamily == null)
throw new NotFiniteNumberException(PSSR.NotImplementedForFontsRetrievedWithFontResolver(family.Name));
#if !SILVERLIGHT
// Just a first sketch, but currently we do not need it and there is enough to do...
double x = layoutRect.X;
double y = layoutRect.Y;
//double lineSpace = font.GetHeight(this);
//double cyAscent = lineSpace * font.cellAscent / font.cellSpace;
//double cyDescent = lineSpace * font.cellDescent / font.cellSpace;
//double cyAscent = family.GetCellAscent(style) * family.GetLineSpacing(style) / family.getl; //fontlineSpace * font.cellAscent / font.cellSpace;
//double cyDescent =family.GetCellDescent(style); // lineSpace * font.cellDescent / font.cellSpace;
double lineSpace = font.GetHeight();
double cyAscent = lineSpace * font.CellAscent / font.CellSpace;
double cyDescent = lineSpace * font.CellDescent / font.CellSpace;
bool bold = (style & XFontStyle.Bold) != 0;
bool italic = (style & XFontStyle.Italic) != 0;
bool strikeout = (style & XFontStyle.Strikeout) != 0;
bool underline = (style & XFontStyle.Underline) != 0;
Typeface typeface = FontHelper.CreateTypeface(family.WpfFamily, style);
//FormattedText formattedText = new FormattedText(s, CultureInfo.CurrentCulture, FlowDirection.LeftToRight, typeface, emSize, WpfBrushes.Black);
FormattedText formattedText = FontHelper.CreateFormattedText(s, typeface, emSize, WpfBrushes.Black);
switch (format.Alignment)
{
case XStringAlignment.Near:
// nothing to do, this is the default
//formattedText.TextAlignment = TextAlignment.Left;
break;
case XStringAlignment.Center:
x += layoutRect.Width / 2;
formattedText.TextAlignment = TextAlignment.Center;
break;
case XStringAlignment.Far:
x += layoutRect.Width;
formattedText.TextAlignment = TextAlignment.Right;
break;
}
//if (PageDirection == XPageDirection.Downwards)
//{
switch (format.LineAlignment)
{
case XLineAlignment.Near:
//y += cyAscent;
break;
case XLineAlignment.Center:
// TO/DO use CapHeight. PDFlib also uses 3/4 of ascent
//y += -formattedText.Baseline + (cyAscent * 2 / 4) + layoutRect.Height / 2;
// GDI seems to make it this simple:
// TODO: Check WPF's vertical alignment and make all implementations fit. $MaOs
y += layoutRect.Height / 2 - lineSpace / 2;
break;
case XLineAlignment.Far:
y += -formattedText.Baseline - cyDescent + layoutRect.Height;
break;
case XLineAlignment.BaseLine:
y -= formattedText.Baseline;
break;
}
//}
//else
//{
// // TODOWPF
// switch (format.LineAlignment)
// {
// case XLineAlignment.Near:
// //y += cyDescent;
// break;
// case XLineAlignment.Center:
// // TODO use CapHeight. PDFlib also uses 3/4 of ascent
// //y += -(cyAscent * 3 / 4) / 2 + rect.Height / 2;
// break;
// case XLineAlignment.Far:
// //y += -cyAscent + rect.Height;
// break;
// case XLineAlignment.BaseLine:
// // nothing to do
// break;
// }
//}
//if (bold && !descriptor.IsBoldFace)
//{
// // TODO: emulate bold by thicker outline
//}
//if (italic && !descriptor.IsItalicFace)
//{
// // TODO: emulate italic by shearing transformation
//}
if (underline)
{
//double underlinePosition = lineSpace * realizedFont.FontDescriptor.descriptor.UnderlinePosition / font.cellSpace;
//double underlineThickness = lineSpace * realizedFont.FontDescriptor.descriptor.UnderlineThickness / font.cellSpace;
//DrawRectangle(null, brush, x, y - underlinePosition, width, underlineThickness);
}
if (strikeout)
{
//double strikeoutPosition = lineSpace * realizedFont.FontDescriptor.descriptor.StrikeoutPosition / font.cellSpace;
//double strikeoutSize = lineSpace * realizedFont.FontDescriptor.descriptor.StrikeoutSize / font.cellSpace;
//DrawRectangle(null, brush, x, y - strikeoutPosition - strikeoutSize, width, strikeoutSize);
}
//dc.DrawText(formattedText, layoutRectangle.Location.ToPoint());
//dc.DrawText(formattedText, new SysPoint(x, y));
Geometry geo = formattedText.BuildGeometry(new Point(x, y));
_pathGeometry.AddGeometry(geo);
#else
// AG-HACK
throw new InvalidOperationException("Silverlight cannot create geometry of glyphs.");
// TODO: no, yagni
#endif
#endif
}
// --------------------------------------------------------------------------------------------
/// <summary>
/// Closes the current figure and starts a new figure.
/// </summary>
public void CloseFigure()
{
#if CORE
_corePath.CloseSubpath();
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.CloseFigure();
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
PathFigure figure = PeekCurrentFigure;
if (figure != null && figure.Segments.Count != 0)
figure.IsClosed = true;
#endif
}
/// <summary>
/// Starts a new figure without closing the current figure.
/// </summary>
public void StartFigure()
{
#if CORE
// TODO: ???
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.StartFigure();
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
PathFigure figure = CurrentPathFigure;
if (figure.Segments.Count != 0)
{
figure = new PathFigure();
_pathGeometry.Figures.Add(figure);
}
#endif
}
// --------------------------------------------------------------------------------------------
/// <summary>
/// Gets or sets an XFillMode that determines how the interiors of shapes are filled.
/// </summary>
public XFillMode FillMode
{
get { return _fillMode; }
set
{
_fillMode = value;
#if CORE
// Nothing to do.
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.FillMode = (FillMode)value;
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
_pathGeometry.FillRule = value == XFillMode.Winding ? FillRule.Nonzero : FillRule.EvenOdd;
#endif
}
}
private XFillMode _fillMode;
// --------------------------------------------------------------------------------------------
/// <summary>
/// Converts each curve in this XGraphicsPath into a sequence of connected line segments.
/// </summary>
public void Flatten()
{
#if CORE
// Just do nothing.
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.Flatten();
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
#if !SILVERLIGHT && !NETFX_CORE
_pathGeometry = _pathGeometry.GetFlattenedPathGeometry();
#else
// AGHACK
throw new InvalidOperationException("Silverlight/WinrRT cannot flatten a geometry.");
// TODO: no, yagni
#endif
#endif
}
/// <summary>
/// Converts each curve in this XGraphicsPath into a sequence of connected line segments.
/// </summary>
public void Flatten(XMatrix matrix)
{
#if CORE
// Just do nothing.
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.Flatten(matrix.ToGdiMatrix());
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
#if !SILVERLIGHT && !NETFX_CORE
_pathGeometry = _pathGeometry.GetFlattenedPathGeometry();
_pathGeometry.Transform = new MatrixTransform(matrix.ToWpfMatrix());
#else
// AGHACK
throw new InvalidOperationException("Silverlight/WinRT cannot flatten a geometry.");
// TODO: no, yagni
#endif
#endif
}
/// <summary>
/// Converts each curve in this XGraphicsPath into a sequence of connected line segments.
/// </summary>
public void Flatten(XMatrix matrix, double flatness)
{
#if CORE
// Just do nothing.
#endif
#if CORE___
throw new NotImplementedException("XGraphicsPath.Flatten");
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.Flatten(matrix.ToGdiMatrix(), (float)flatness);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
#if !SILVERLIGHT && !NETFX_CORE
_pathGeometry = _pathGeometry.GetFlattenedPathGeometry();
// TODO: matrix handling not yet tested
if (!matrix.IsIdentity)
_pathGeometry.Transform = new MatrixTransform(matrix.ToWpfMatrix());
#else
// AG-HACK
throw new InvalidOperationException("Silverlight/WinRT cannot flatten a geometry.");
// TODO: no, yagni
#endif
#endif
}
// --------------------------------------------------------------------------------------------
/// <summary>
/// Replaces this path with curves that enclose the area that is filled when this path is drawn
/// by the specified pen.
/// </summary>
public void Widen(XPen pen)
{
#if CORE
// Just do nothing.
#endif
#if CORE___
throw new NotImplementedException("XGraphicsPath.Widen");
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.Widen(pen.RealizeGdiPen());
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
#if !SILVERLIGHT && !NETFX_CORE
_pathGeometry = _pathGeometry.GetWidenedPathGeometry(pen.RealizeWpfPen());
#else
// AG-HACK
throw new InvalidOperationException("Silverlight/WinRT cannot widen a geometry.");
// TODO: no, yagni
#endif
#endif
}
/// <summary>
/// Replaces this path with curves that enclose the area that is filled when this path is drawn
/// by the specified pen.
/// </summary>
public void Widen(XPen pen, XMatrix matrix)
{
#if CORE
// Just do nothing.
#endif
#if CORE
throw new NotImplementedException("XGraphicsPath.Widen");
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.Widen(pen.RealizeGdiPen(), matrix.ToGdiMatrix());
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
#if !SILVERLIGHT && !NETFX_CORE
_pathGeometry = _pathGeometry.GetWidenedPathGeometry(pen.RealizeWpfPen());
#else
// AG-HACK
throw new InvalidOperationException("Silverlight/WinRT cannot widen a geometry.");
// TODO: no, yagni
#endif
#endif
}
/// <summary>
/// Replaces this path with curves that enclose the area that is filled when this path is drawn
/// by the specified pen.
/// </summary>
public void Widen(XPen pen, XMatrix matrix, double flatness)
{
#if CORE
// Just do nothing.
#endif
#if CORE__
throw new NotImplementedException("XGraphicsPath.Widen");
#endif
#if GDI
try
{
Lock.EnterGdiPlus();
_gdipPath.Widen(pen.RealizeGdiPen(), matrix.ToGdiMatrix(), (float)flatness);
}
finally { Lock.ExitGdiPlus(); }
#endif
#if WPF || NETFX_CORE
#if !SILVERLIGHT && !NETFX_CORE
_pathGeometry = _pathGeometry.GetWidenedPathGeometry(pen.RealizeWpfPen());
#else
// AG-HACK
throw new InvalidOperationException("Silverlight/WinRT cannot widen a geometry.");
// TODO: no, yagni
#endif
#endif
}
/// <summary>
/// Grants access to internal objects of this class.
/// </summary>
public XGraphicsPathInternals Internals
{
get { return new XGraphicsPathInternals(this); }
}
#if CORE
/// <summary>
/// Gets access to underlying Core graphics path.
/// </summary>
internal CoreGraphicsPath _corePath;
#endif
#if GDI
/// <summary>
/// Gets access to underlying GDI+ graphics path.
/// </summary>
internal GraphicsPath _gdipPath;
#endif
#if WPF || NETFX_CORE
/// <summary>
/// Gets access to underlying WPF/WinRT path geometry.
/// </summary>
internal PathGeometry _pathGeometry;
#endif
}
}