848 lines
27 KiB
C#
848 lines
27 KiB
C#
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#region PDFsharp - A .NET library for processing PDF
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//
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// Authors:
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// Stefan Lange
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//
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// Copyright (c) 2005-2017 empira Software GmbH, Cologne Area (Germany)
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//
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// http://www.pdfsharp.com
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// http://sourceforge.net/projects/pdfsharp
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#endregion
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using System;
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using System.Diagnostics;
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using System.Globalization;
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using System.Runtime.InteropServices;
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#if CORE
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#endif
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#if GDI
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using System.Drawing;
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using System.Drawing.Drawing2D;
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#endif
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#if WPF
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using System.Windows;
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using System.Windows.Media;
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using SysPoint = System.Windows.Point;
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using SysSize = System.Windows.Size;
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using SysRect = System.Windows.Rect;
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#endif
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#if NETFX_CORE
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using Windows.UI.Xaml.Media;
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using SysPoint = Windows.Foundation.Point;
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using SysSize = Windows.Foundation.Size;
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using SysRect = Windows.Foundation.Rect;
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#endif
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#if !EDF_CORE
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using PdfSharp.Internal;
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#else
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using PdfSharp.Internal;
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#endif
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namespace PdfSharp.Drawing
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{
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/// <summary>
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/// Stores a set of four floating-point numbers that represent the location and size of a rectangle.
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/// </summary>
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[DebuggerDisplay("{DebuggerDisplay}")]
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[Serializable, StructLayout(LayoutKind.Sequential)] // , ValueSerializer(typeof(RectValueSerializer)), TypeConverter(typeof(RectConverter))]
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public struct XRect : IFormattable
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{
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/// <summary>
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/// Initializes a new instance of the XRect class.
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/// </summary>
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public XRect(double x, double y, double width, double height)
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{
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if (width < 0 || height < 0)
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throw new ArgumentException("WidthAndHeightCannotBeNegative"); //SR.Get(SRID.Size_WidthAndHeightCannotBeNegative, new object[0]));
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_x = x;
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_y = y;
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_width = width;
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_height = height;
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}
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/// <summary>
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/// Initializes a new instance of the XRect class.
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/// </summary>
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public XRect(XPoint point1, XPoint point2)
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{
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_x = Math.Min(point1.X, point2.X);
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_y = Math.Min(point1.Y, point2.Y);
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_width = Math.Max(Math.Max(point1.X, point2.X) - _x, 0);
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_height = Math.Max(Math.Max(point1.Y, point2.Y) - _y, 0);
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}
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/// <summary>
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/// Initializes a new instance of the XRect class.
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/// </summary>
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public XRect(XPoint point, XVector vector)
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: this(point, point + vector)
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{ }
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/// <summary>
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/// Initializes a new instance of the XRect class.
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/// </summary>
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public XRect(XPoint location, XSize size)
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{
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if (size.IsEmpty)
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this = s_empty;
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else
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{
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_x = location.X;
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_y = location.Y;
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_width = size.Width;
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_height = size.Height;
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}
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}
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/// <summary>
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/// Initializes a new instance of the XRect class.
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/// </summary>
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public XRect(XSize size)
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{
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if (size.IsEmpty)
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this = s_empty;
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else
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{
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_x = _y = 0;
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_width = size.Width;
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_height = size.Height;
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}
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}
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#if GDI
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/// <summary>
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/// Initializes a new instance of the XRect class.
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/// </summary>
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public XRect(PointF location, SizeF size)
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{
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_x = location.X;
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_y = location.Y;
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_width = size.Width;
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_height = size.Height;
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}
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#endif
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#if GDI
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/// <summary>
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/// Initializes a new instance of the XRect class.
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/// </summary>
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public XRect(RectangleF rect)
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{
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_x = rect.X;
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_y = rect.Y;
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_width = rect.Width;
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_height = rect.Height;
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}
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#endif
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#if WPF || NETFX_CORE
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/// <summary>
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/// Initializes a new instance of the XRect class.
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/// </summary>
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public XRect(SysRect rect)
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{
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_x = rect.X;
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_y = rect.Y;
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_width = rect.Width;
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_height = rect.Height;
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}
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#endif
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/// <summary>
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/// Creates a rectangle from for straight lines.
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/// </summary>
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// ReSharper disable InconsistentNaming
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public static XRect FromLTRB(double left, double top, double right, double bottom)
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// ReSharper restore InconsistentNaming
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{
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return new XRect(left, top, right - left, bottom - top);
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}
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/// <summary>
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/// Determines whether the two rectangles are equal.
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/// </summary>
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public static bool operator ==(XRect rect1, XRect rect2)
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{
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// ReSharper disable CompareOfFloatsByEqualityOperator
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return rect1.X == rect2.X && rect1.Y == rect2.Y && rect1.Width == rect2.Width && rect1.Height == rect2.Height;
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// ReSharper restore CompareOfFloatsByEqualityOperator
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}
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/// <summary>
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/// Determines whether the two rectangles are not equal.
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/// </summary>
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public static bool operator !=(XRect rect1, XRect rect2)
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{
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return !(rect1 == rect2);
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}
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/// <summary>
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/// Determines whether the two rectangles are equal.
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/// </summary>
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public static bool Equals(XRect rect1, XRect rect2)
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{
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if (rect1.IsEmpty)
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return rect2.IsEmpty;
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return rect1.X.Equals(rect2.X) && rect1.Y.Equals(rect2.Y) && rect1.Width.Equals(rect2.Width) && rect1.Height.Equals(rect2.Height);
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}
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/// <summary>
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/// Determines whether this instance and the specified object are equal.
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/// </summary>
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public override bool Equals(object o)
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{
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if (!(o is XRect))
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return false;
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return Equals(this, (XRect)o);
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}
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/// <summary>
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/// Determines whether this instance and the specified rect are equal.
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/// </summary>
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public bool Equals(XRect value)
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{
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return Equals(this, value);
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}
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/// <summary>
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/// Returns the hash code for this instance.
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/// </summary>
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public override int GetHashCode()
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{
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if (IsEmpty)
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return 0;
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return X.GetHashCode() ^ Y.GetHashCode() ^ Width.GetHashCode() ^ Height.GetHashCode();
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}
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/// <summary>
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/// Parses the rectangle from a string.
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/// </summary>
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public static XRect Parse(string source)
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{
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XRect empty;
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CultureInfo cultureInfo = CultureInfo.InvariantCulture;
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TokenizerHelper helper = new TokenizerHelper(source, cultureInfo);
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string str = helper.NextTokenRequired();
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if (str == "Empty")
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empty = Empty;
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else
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empty = new XRect(Convert.ToDouble(str, cultureInfo), Convert.ToDouble(helper.NextTokenRequired(), cultureInfo), Convert.ToDouble(helper.NextTokenRequired(), cultureInfo), Convert.ToDouble(helper.NextTokenRequired(), cultureInfo));
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helper.LastTokenRequired();
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return empty;
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}
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/// <summary>
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/// Converts this XRect to a human readable string.
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/// </summary>
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public override string ToString()
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{
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return ConvertToString(null, null);
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}
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/// <summary>
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/// Converts this XRect to a human readable string.
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/// </summary>
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public string ToString(IFormatProvider provider)
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{
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return ConvertToString(null, provider);
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}
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/// <summary>
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/// Converts this XRect to a human readable string.
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/// </summary>
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string IFormattable.ToString(string format, IFormatProvider provider)
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{
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return ConvertToString(format, provider);
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}
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internal string ConvertToString(string format, IFormatProvider provider)
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{
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if (IsEmpty)
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return "Empty";
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char numericListSeparator = TokenizerHelper.GetNumericListSeparator(provider);
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provider = provider ?? CultureInfo.InvariantCulture;
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// ReSharper disable FormatStringProblem
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return string.Format(provider, "{1:" + format + "}{0}{2:" + format + "}{0}{3:" + format + "}{0}{4:" + format + "}", new object[] { numericListSeparator, _x, _y, _width, _height });
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// ReSharper restore FormatStringProblem
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}
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/// <summary>
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/// Gets the empty rectangle.
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/// </summary>
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public static XRect Empty
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{
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get { return s_empty; }
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}
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/// <summary>
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/// Gets a value indicating whether this instance is empty.
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/// </summary>
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public bool IsEmpty
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{
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get { return _width < 0; }
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}
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/// <summary>
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/// Gets or sets the location of the rectangle.
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/// </summary>
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public XPoint Location
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{
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get { return new XPoint(_x, _y); }
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set
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{
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if (IsEmpty)
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throw new InvalidOperationException("CannotModifyEmptyRect"); //SR.Get(SRID.Rect_CannotModifyEmptyRect, new object[0]));
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_x = value.X;
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_y = value.Y;
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}
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}
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/// <summary>
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/// Gets or sets the size of the rectangle.
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/// </summary>
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//[Browsable(false)]
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public XSize Size
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{
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get
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{
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if (IsEmpty)
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return XSize.Empty;
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return new XSize(_width, _height);
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}
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set
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{
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if (value.IsEmpty)
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this = s_empty;
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else
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{
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if (IsEmpty)
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throw new InvalidOperationException("CannotModifyEmptyRect"); //SR.Get(SRID.Rect_CannotModifyEmptyRect, new object[0]));
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_width = value.Width;
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_height = value.Height;
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}
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}
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}
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||
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||
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/// <summary>
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/// Gets or sets the X value of the rectangle.
|
||
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/// </summary>
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||
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public double X
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{
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get { return _x; }
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set
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{
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||
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if (IsEmpty)
|
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throw new InvalidOperationException("CannotModifyEmptyRect"); //SR.Get(SRID.Rect_CannotModifyEmptyRect, new object[0]));
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_x = value;
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||
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}
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||
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}
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||
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double _x;
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||
|
|
|
||
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/// <summary>
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||
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/// Gets or sets the Y value of the rectangle.
|
||
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/// </summary>
|
||
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public double Y
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||
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{
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||
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get { return _y; }
|
||
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set
|
||
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|
{
|
||
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if (IsEmpty)
|
||
|
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throw new InvalidOperationException("CannotModifyEmptyRect"); //SR.Get(SRID.Rect_CannotModifyEmptyRect, new object[0]));
|
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_y = value;
|
||
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}
|
||
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}
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||
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double _y;
|
||
|
|
|
||
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/// <summary>
|
||
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/// Gets or sets the width of the rectangle.
|
||
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|
/// </summary>
|
||
|
|
public double Width
|
||
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{
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||
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get { return _width; }
|
||
|
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set
|
||
|
|
{
|
||
|
|
if (IsEmpty)
|
||
|
|
throw new InvalidOperationException("CannotModifyEmptyRect"); //SR.Get(SRID.Rect_CannotModifyEmptyRect, new object[0]));
|
||
|
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if (value < 0)
|
||
|
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throw new ArgumentException("WidthCannotBeNegative"); //SR.Get(SRID.Size_WidthCannotBeNegative, new object[0]));
|
||
|
|
|
||
|
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_width = value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
double _width;
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets or sets the height of the rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public double Height
|
||
|
|
{
|
||
|
|
get { return _height; }
|
||
|
|
set
|
||
|
|
{
|
||
|
|
if (IsEmpty)
|
||
|
|
throw new InvalidOperationException("CannotModifyEmptyRect"); //SR.Get(SRID.Rect_CannotModifyEmptyRect, new object[0]));
|
||
|
|
if (value < 0)
|
||
|
|
throw new ArgumentException("HeightCannotBeNegative"); //SR.Get(SRID.Size_HeightCannotBeNegative, new object[0]));
|
||
|
|
_height = value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
double _height;
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the x-axis value of the left side of the rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public double Left
|
||
|
|
{
|
||
|
|
get { return _x; }
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the y-axis value of the top side of the rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public double Top
|
||
|
|
{
|
||
|
|
get { return _y; }
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the x-axis value of the right side of the rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public double Right
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
if (IsEmpty)
|
||
|
|
return double.NegativeInfinity;
|
||
|
|
return _x + _width;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the y-axis value of the bottom side of the rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public double Bottom
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
if (IsEmpty)
|
||
|
|
return double.NegativeInfinity;
|
||
|
|
return _y + _height;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the position of the top-left corner of the rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public XPoint TopLeft
|
||
|
|
{
|
||
|
|
get { return new XPoint(Left, Top); }
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the position of the top-right corner of the rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public XPoint TopRight
|
||
|
|
{
|
||
|
|
get { return new XPoint(Right, Top); }
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the position of the bottom-left corner of the rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public XPoint BottomLeft
|
||
|
|
{
|
||
|
|
get { return new XPoint(Left, Bottom); }
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the position of the bottom-right corner of the rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public XPoint BottomRight
|
||
|
|
{
|
||
|
|
get { return new XPoint(Right, Bottom); }
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the center of the rectangle.
|
||
|
|
/// </summary>
|
||
|
|
//[Browsable(false)]
|
||
|
|
public XPoint Center
|
||
|
|
{
|
||
|
|
get { return new XPoint(_x + _width / 2, _y + _height / 2); }
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Indicates whether the rectangle contains the specified point.
|
||
|
|
/// </summary>
|
||
|
|
public bool Contains(XPoint point)
|
||
|
|
{
|
||
|
|
return Contains(point.X, point.Y);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Indicates whether the rectangle contains the specified point.
|
||
|
|
/// </summary>
|
||
|
|
public bool Contains(double x, double y)
|
||
|
|
{
|
||
|
|
if (IsEmpty)
|
||
|
|
return false;
|
||
|
|
return ContainsInternal(x, y);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Indicates whether the rectangle contains the specified rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public bool Contains(XRect rect)
|
||
|
|
{
|
||
|
|
return !IsEmpty && !rect.IsEmpty &&
|
||
|
|
_x <= rect._x && _y <= rect._y &&
|
||
|
|
_x + _width >= rect._x + rect._width && _y + _height >= rect._y + rect._height;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Indicates whether the specified rectangle intersects with the current rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public bool IntersectsWith(XRect rect)
|
||
|
|
{
|
||
|
|
return !IsEmpty && !rect.IsEmpty &&
|
||
|
|
rect.Left <= Right && rect.Right >= Left &&
|
||
|
|
rect.Top <= Bottom && rect.Bottom >= Top;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Sets current rectangle to the intersection of the current rectangle and the specified rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public void Intersect(XRect rect)
|
||
|
|
{
|
||
|
|
if (!IntersectsWith(rect))
|
||
|
|
this = Empty;
|
||
|
|
else
|
||
|
|
{
|
||
|
|
double left = Math.Max(Left, rect.Left);
|
||
|
|
double top = Math.Max(Top, rect.Top);
|
||
|
|
_width = Math.Max(Math.Min(Right, rect.Right) - left, 0.0);
|
||
|
|
_height = Math.Max(Math.Min(Bottom, rect.Bottom) - top, 0.0);
|
||
|
|
_x = left;
|
||
|
|
_y = top;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns the intersection of two rectangles.
|
||
|
|
/// </summary>
|
||
|
|
public static XRect Intersect(XRect rect1, XRect rect2)
|
||
|
|
{
|
||
|
|
rect1.Intersect(rect2);
|
||
|
|
return rect1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Sets current rectangle to the union of the current rectangle and the specified rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public void Union(XRect rect)
|
||
|
|
{
|
||
|
|
// ReSharper disable CompareOfFloatsByEqualityOperator
|
||
|
|
if (IsEmpty)
|
||
|
|
this = rect;
|
||
|
|
else if (!rect.IsEmpty)
|
||
|
|
{
|
||
|
|
double left = Math.Min(Left, rect.Left);
|
||
|
|
double top = Math.Min(Top, rect.Top);
|
||
|
|
if (rect.Width == Double.PositiveInfinity || Width == Double.PositiveInfinity)
|
||
|
|
_width = Double.PositiveInfinity;
|
||
|
|
else
|
||
|
|
{
|
||
|
|
double right = Math.Max(Right, rect.Right);
|
||
|
|
_width = Math.Max(right - left, 0.0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (rect.Height == Double.PositiveInfinity || _height == Double.PositiveInfinity)
|
||
|
|
_height = Double.PositiveInfinity;
|
||
|
|
else
|
||
|
|
{
|
||
|
|
double bottom = Math.Max(Bottom, rect.Bottom);
|
||
|
|
_height = Math.Max(bottom - top, 0.0);
|
||
|
|
}
|
||
|
|
_x = left;
|
||
|
|
_y = top;
|
||
|
|
}
|
||
|
|
// ReSharper restore CompareOfFloatsByEqualityOperator
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns the union of two rectangles.
|
||
|
|
/// </summary>
|
||
|
|
public static XRect Union(XRect rect1, XRect rect2)
|
||
|
|
{
|
||
|
|
rect1.Union(rect2);
|
||
|
|
return rect1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Sets current rectangle to the union of the current rectangle and the specified point.
|
||
|
|
/// </summary>
|
||
|
|
public void Union(XPoint point)
|
||
|
|
{
|
||
|
|
Union(new XRect(point, point));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns the intersection of a rectangle and a point.
|
||
|
|
/// </summary>
|
||
|
|
public static XRect Union(XRect rect, XPoint point)
|
||
|
|
{
|
||
|
|
rect.Union(new XRect(point, point));
|
||
|
|
return rect;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Moves a rectangle by the specified amount.
|
||
|
|
/// </summary>
|
||
|
|
public void Offset(XVector offsetVector)
|
||
|
|
{
|
||
|
|
if (IsEmpty)
|
||
|
|
throw new InvalidOperationException("CannotCallMethod"); //SR.Get(SRID.Rect_CannotCallMethod, new object[0]));
|
||
|
|
_x += offsetVector.X;
|
||
|
|
_y += offsetVector.Y;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Moves a rectangle by the specified amount.
|
||
|
|
/// </summary>
|
||
|
|
public void Offset(double offsetX, double offsetY)
|
||
|
|
{
|
||
|
|
if (IsEmpty)
|
||
|
|
throw new InvalidOperationException("CannotCallMethod"); //SR.Get(SRID.Rect_CannotCallMethod, new object[0]));
|
||
|
|
_x += offsetX;
|
||
|
|
_y += offsetY;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns a rectangle that is offset from the specified rectangle by using the specified vector.
|
||
|
|
/// </summary>
|
||
|
|
public static XRect Offset(XRect rect, XVector offsetVector)
|
||
|
|
{
|
||
|
|
rect.Offset(offsetVector.X, offsetVector.Y);
|
||
|
|
return rect;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns a rectangle that is offset from the specified rectangle by using specified horizontal and vertical amounts.
|
||
|
|
/// </summary>
|
||
|
|
public static XRect Offset(XRect rect, double offsetX, double offsetY)
|
||
|
|
{
|
||
|
|
rect.Offset(offsetX, offsetY);
|
||
|
|
return rect;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Translates the rectangle by adding the specified point.
|
||
|
|
/// </summary>
|
||
|
|
//[Obsolete("Use Offset.")]
|
||
|
|
public static XRect operator +(XRect rect, XPoint point)
|
||
|
|
{
|
||
|
|
return new XRect(rect._x + point.X, rect.Y + point.Y, rect._width, rect._height);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Translates the rectangle by subtracting the specified point.
|
||
|
|
/// </summary>
|
||
|
|
//[Obsolete("Use Offset.")]
|
||
|
|
public static XRect operator -(XRect rect, XPoint point)
|
||
|
|
{
|
||
|
|
return new XRect(rect._x - point.X, rect.Y - point.Y, rect._width, rect._height);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Expands the rectangle by using the specified Size, in all directions.
|
||
|
|
/// </summary>
|
||
|
|
public void Inflate(XSize size)
|
||
|
|
{
|
||
|
|
Inflate(size.Width, size.Height);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Expands or shrinks the rectangle by using the specified width and height amounts, in all directions.
|
||
|
|
/// </summary>
|
||
|
|
public void Inflate(double width, double height)
|
||
|
|
{
|
||
|
|
if (IsEmpty)
|
||
|
|
throw new InvalidOperationException("CannotCallMethod"); //SR.Get(SRID.Rect_CannotCallMethod, new object[0]));
|
||
|
|
_x -= width;
|
||
|
|
_y -= height;
|
||
|
|
_width += width;
|
||
|
|
_width += width;
|
||
|
|
_height += height;
|
||
|
|
_height += height;
|
||
|
|
if (_width < 0 || _height < 0)
|
||
|
|
this = s_empty;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns the rectangle that results from expanding the specified rectangle by the specified Size, in all directions.
|
||
|
|
/// </summary>
|
||
|
|
public static XRect Inflate(XRect rect, XSize size)
|
||
|
|
{
|
||
|
|
rect.Inflate(size.Width, size.Height);
|
||
|
|
return rect;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Creates a rectangle that results from expanding or shrinking the specified rectangle by the specified width and height amounts, in all directions.
|
||
|
|
/// </summary>
|
||
|
|
public static XRect Inflate(XRect rect, double width, double height)
|
||
|
|
{
|
||
|
|
rect.Inflate(width, height);
|
||
|
|
return rect;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Returns the rectangle that results from applying the specified matrix to the specified rectangle.
|
||
|
|
/// </summary>
|
||
|
|
public static XRect Transform(XRect rect, XMatrix matrix)
|
||
|
|
{
|
||
|
|
XMatrix.MatrixHelper.TransformRect(ref rect, ref matrix);
|
||
|
|
return rect;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Transforms the rectangle by applying the specified matrix.
|
||
|
|
/// </summary>
|
||
|
|
public void Transform(XMatrix matrix)
|
||
|
|
{
|
||
|
|
XMatrix.MatrixHelper.TransformRect(ref this, ref matrix);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Multiplies the size of the current rectangle by the specified x and y values.
|
||
|
|
/// </summary>
|
||
|
|
public void Scale(double scaleX, double scaleY)
|
||
|
|
{
|
||
|
|
if (!IsEmpty)
|
||
|
|
{
|
||
|
|
_x *= scaleX;
|
||
|
|
_y *= scaleY;
|
||
|
|
_width *= scaleX;
|
||
|
|
_height *= scaleY;
|
||
|
|
if (scaleX < 0)
|
||
|
|
{
|
||
|
|
_x += _width;
|
||
|
|
_width *= -1.0;
|
||
|
|
}
|
||
|
|
if (scaleY < 0)
|
||
|
|
{
|
||
|
|
_y += _height;
|
||
|
|
_height *= -1.0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#if CORE // Internal version in CORE build.
|
||
|
|
#if UseGdiObjects
|
||
|
|
/// <summary>
|
||
|
|
/// Converts this instance to a System.Drawing.RectangleF.
|
||
|
|
/// </summary>
|
||
|
|
internal RectangleF ToRectangleF()
|
||
|
|
{
|
||
|
|
return new RectangleF((float)_x, (float)_y, (float)_width, (float)_height);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if GDI
|
||
|
|
/// <summary>
|
||
|
|
/// Converts this instance to a System.Drawing.RectangleF.
|
||
|
|
/// </summary>
|
||
|
|
public RectangleF ToRectangleF()
|
||
|
|
{
|
||
|
|
return new RectangleF((float)_x, (float)_y, (float)_width, (float)_height);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if GDI
|
||
|
|
/// <summary>
|
||
|
|
/// Performs an implicit conversion from a System.Drawing.Rectangle to an XRect.
|
||
|
|
/// </summary>
|
||
|
|
public static implicit operator XRect(Rectangle rect)
|
||
|
|
{
|
||
|
|
return new XRect(rect.X, rect.Y, rect.Width, rect.Height);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Performs an implicit conversion from a System.Drawing.RectangleF to an XRect.
|
||
|
|
/// </summary>
|
||
|
|
public static implicit operator XRect(RectangleF rect)
|
||
|
|
{
|
||
|
|
return new XRect(rect.X, rect.Y, rect.Width, rect.Height);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if WPF || NETFX_CORE
|
||
|
|
/// <summary>
|
||
|
|
/// Performs an implicit conversion from System.Windows.Rect to XRect.
|
||
|
|
/// </summary>
|
||
|
|
public static implicit operator XRect(SysRect rect)
|
||
|
|
{
|
||
|
|
return new XRect(rect.X, rect.Y, rect.Width, rect.Height);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
bool ContainsInternal(double x, double y)
|
||
|
|
{
|
||
|
|
return x >= _x && x - _width <= _x && y >= _y && y - _height <= _y;
|
||
|
|
}
|
||
|
|
|
||
|
|
static XRect CreateEmptyRect()
|
||
|
|
{
|
||
|
|
XRect rect = new XRect();
|
||
|
|
rect._x = double.PositiveInfinity;
|
||
|
|
rect._y = double.PositiveInfinity;
|
||
|
|
rect._width = double.NegativeInfinity;
|
||
|
|
rect._height = double.NegativeInfinity;
|
||
|
|
return rect;
|
||
|
|
}
|
||
|
|
|
||
|
|
static XRect()
|
||
|
|
{
|
||
|
|
s_empty = CreateEmptyRect();
|
||
|
|
}
|
||
|
|
|
||
|
|
static readonly XRect s_empty;
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the DebuggerDisplayAttribute text.
|
||
|
|
/// </summary>
|
||
|
|
/// <value>The debugger display.</value>
|
||
|
|
// ReSharper disable UnusedMember.Local
|
||
|
|
string DebuggerDisplay
|
||
|
|
// ReSharper restore UnusedMember.Local
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
const string format = Config.SignificantFigures10;
|
||
|
|
return String.Format(CultureInfo.InvariantCulture,
|
||
|
|
"rect=({0:" + format + "}, {1:" + format + "}, {2:" + format + "}, {3:" + format + "})",
|
||
|
|
_x, _y, _width, _height);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|