Initial Commit
This commit is contained in:
733
iTechSharp/iTextSharp/text/Rectangle.cs
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733
iTechSharp/iTextSharp/text/Rectangle.cs
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using System;
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using System.Collections;
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using System.Text;
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using System.util;
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using iTextSharp.text.pdf;
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/*
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* $Id: Rectangle.cs,v 1.18 2008/05/13 11:25:12 psoares33 Exp $
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*
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*
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* Copyright 1999, 2000, 2001, 2002 by Bruno Lowagie.
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* (the "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the License.
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*
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* The Original Code is 'iText, a free JAVA-PDF library'.
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*
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* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
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* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
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* All Rights Reserved.
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* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
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* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
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*
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* Contributor(s): all the names of the contributors are added in the source code
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* where applicable.
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*
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* Alternatively, the contents of this file may be used under the terms of the
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* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
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* provisions of LGPL are applicable instead of those above. If you wish to
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* allow use of your version of this file only under the terms of the LGPL
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* License and not to allow others to use your version of this file under
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* the MPL, indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by the LGPL.
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* If you do not delete the provisions above, a recipient may use your version
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* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the MPL as stated above or under the terms of the GNU
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* Library General Public License as published by the Free Software Foundation;
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* either version 2 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
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* details.
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*
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* If you didn't download this code from the following link, you should check if
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* you aren't using an obsolete version:
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* http://www.lowagie.com/iText/
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*/
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namespace iTextSharp.text {
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/// <summary>
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/// A Rectangle is the representation of a geometric figure.
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/// </summary>
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/// <seealso cref="T:iTextSharp.text.Element"/>
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/// <seealso cref="T:iTextSharp.text.Table"/>
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/// <seealso cref="T:iTextSharp.text.Cell"/>
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/// <seealso cref="T:iTextSharp.text.HeaderFooter"/>
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public class Rectangle : Element, IElement {
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// static membervariables (concerning the presence of borders)
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///<summary> This is the value that will be used as <VAR>undefined</VAR>. </summary>
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public const int UNDEFINED = -1;
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///<summary> This represents one side of the border of the Rectangle. </summary>
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public const int TOP_BORDER = 1;
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///<summary> This represents one side of the border of the Rectangle. </summary>
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public const int BOTTOM_BORDER = 2;
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///<summary> This represents one side of the border of the Rectangle. </summary>
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public const int LEFT_BORDER = 4;
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///<summary> This represents one side of the border of the Rectangle. </summary>
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public const int RIGHT_BORDER = 8;
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///<summary> This represents a rectangle without borders. </summary>
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public const int NO_BORDER = 0;
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///<summary> This represents a type of border. </summary>
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public const int BOX = TOP_BORDER + BOTTOM_BORDER + LEFT_BORDER + RIGHT_BORDER;
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// membervariables
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///<summary> the lower left x-coordinate. </summary>
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protected float llx;
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///<summary> the lower left y-coordinate. </summary>
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protected float lly;
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///<summary> the upper right x-coordinate. </summary>
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protected float urx;
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///<summary> the upper right y-coordinate. </summary>
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protected float ury;
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///<summary> This represents the status of the 4 sides of the rectangle. </summary>
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protected int border = UNDEFINED;
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///<summary> This is the width of the border around this rectangle. </summary>
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protected float borderWidth = UNDEFINED;
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///<summary> This is the color of the border of this rectangle. </summary>
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protected Color borderColor = null;
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/** The color of the left border of this rectangle. */
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protected Color borderColorLeft = null;
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/** The color of the right border of this rectangle. */
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protected Color borderColorRight = null;
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/** The color of the top border of this rectangle. */
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protected Color borderColorTop = null;
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/** The color of the bottom border of this rectangle. */
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protected Color borderColorBottom = null;
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/** The width of the left border of this rectangle. */
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protected float borderWidthLeft = UNDEFINED;
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/** The width of the right border of this rectangle. */
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protected float borderWidthRight = UNDEFINED;
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/** The width of the top border of this rectangle. */
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protected float borderWidthTop = UNDEFINED;
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/** The width of the bottom border of this rectangle. */
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protected float borderWidthBottom = UNDEFINED;
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/** Whether variable width borders are used. */
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protected bool useVariableBorders = false;
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///<summary> This is the color of the background of this rectangle. </summary>
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protected Color backgroundColor = null;
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///<summary> This is the rotation value of this rectangle. </summary>
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protected int rotation = 0;
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// constructors
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/// <summary>
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/// Constructs a Rectangle-object.
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/// </summary>
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/// <param name="llx">lower left x</param>
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/// <param name="lly">lower left y</param>
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/// <param name="urx">upper right x</param>
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/// <param name="ury">upper right y</param>
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public Rectangle(float llx, float lly, float urx, float ury) {
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this.llx = llx;
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this.lly = lly;
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this.urx = urx;
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this.ury = ury;
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}
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/// <summary>
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/// Constructs a Rectangle-object starting from the origin (0, 0).
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/// </summary>
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/// <param name="urx">upper right x</param>
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/// <param name="ury">upper right y</param>
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public Rectangle(float urx, float ury) : this(0, 0, urx, ury) {}
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/// <summary>
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/// Constructs a Rectangle-object.
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/// </summary>
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/// <param name="rect">another Rectangle</param>
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public Rectangle(Rectangle rect) : this(rect.llx, rect.lly, rect.urx, rect.ury) {
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CloneNonPositionParameters(rect);
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}
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/**
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* Copies all of the parameters from a <CODE>Rectangle</CODE> object
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* except the position.
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*
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* @param rect
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* <CODE>Rectangle</CODE> to copy from
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*/
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public virtual void CloneNonPositionParameters(Rectangle rect) {
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this.rotation = rect.rotation;
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this.border = rect.border;
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this.borderWidth = rect.borderWidth;
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this.borderColor = rect.borderColor;
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this.backgroundColor = rect.backgroundColor;
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this.borderColorLeft = rect.borderColorLeft;
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this.borderColorRight = rect.borderColorRight;
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this.borderColorTop = rect.borderColorTop;
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this.borderColorBottom = rect.borderColorBottom;
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this.borderWidthLeft = rect.borderWidthLeft;
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this.borderWidthRight = rect.borderWidthRight;
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this.borderWidthTop = rect.borderWidthTop;
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this.borderWidthBottom = rect.borderWidthBottom;
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this.useVariableBorders = rect.useVariableBorders;
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}
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/**
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* Copies all of the parameters from a <CODE>Rectangle</CODE> object
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* except the position.
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*
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* @param rect
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* <CODE>Rectangle</CODE> to copy from
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*/
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public virtual void SoftCloneNonPositionParameters(Rectangle rect) {
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if (rect.rotation != 0)
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this.rotation = rect.rotation;
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if (rect.border != UNDEFINED)
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this.border = rect.border;
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if (rect.borderWidth != UNDEFINED)
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this.borderWidth = rect.borderWidth;
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if (rect.borderColor != null)
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this.borderColor = rect.borderColor;
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if (rect.backgroundColor != null)
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this.backgroundColor = rect.backgroundColor;
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if (rect.borderColorLeft != null)
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this.borderColorLeft = rect.borderColorLeft;
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if (rect.borderColorRight != null)
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this.borderColorRight = rect.borderColorRight;
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if (rect.borderColorTop != null)
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this.borderColorTop = rect.borderColorTop;
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if (rect.borderColorBottom != null)
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this.borderColorBottom = rect.borderColorBottom;
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if (rect.borderWidthLeft != UNDEFINED)
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this.borderWidthLeft = rect.borderWidthLeft;
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if (rect.borderWidthRight != UNDEFINED)
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this.borderWidthRight = rect.borderWidthRight;
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if (rect.borderWidthTop != UNDEFINED)
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this.borderWidthTop = rect.borderWidthTop;
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if (rect.borderWidthBottom != UNDEFINED)
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this.borderWidthBottom = rect.borderWidthBottom;
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if (useVariableBorders)
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this.useVariableBorders = rect.useVariableBorders;
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}
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// implementation of the Element interface
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/// <summary>
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/// Processes the element by adding it (or the different parts) to an
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/// IElementListener.
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/// </summary>
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/// <param name="listener">an IElementListener</param>
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/// <returns>true if the element was processed successfully</returns>
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public virtual bool Process(IElementListener listener) {
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try {
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return listener.Add(this);
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}
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catch (DocumentException) {
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return false;
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}
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}
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/// <summary>
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/// Gets the type of the text element.
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/// </summary>
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/// <value>a type</value>
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public virtual int Type {
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get {
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return Element.RECTANGLE;
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}
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}
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/// <summary>
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/// Gets all the chunks in this element.
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/// </summary>
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/// <value>an ArrayList</value>
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public virtual ArrayList Chunks {
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get {
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return new ArrayList();
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}
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}
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/**
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* @see com.lowagie.text.Element#isContent()
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* @since iText 2.0.8
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*/
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public bool IsContent() {
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return true;
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}
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/**
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* @see com.lowagie.text.Element#isNestable()
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* @since iText 2.0.8
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*/
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public virtual bool IsNestable() {
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return false;
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}
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// methods
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/**
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* Switches lowerleft with upperright
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*/
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public virtual void Normalize() {
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if (llx > urx) {
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float a = llx;
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llx = urx;
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urx = a;
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}
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if (lly > ury) {
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float a = lly;
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lly = ury;
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ury = a;
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}
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}
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/// <summary>
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/// Gets a Rectangle that is altered to fit on the page.
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/// </summary>
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/// <param name="top">the top position</param>
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/// <param name="bottom">the bottom position</param>
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/// <returns>a Rectangle</returns>
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public Rectangle GetRectangle(float top, float bottom) {
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Rectangle tmp = new Rectangle(this);
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if (this.Top > top) {
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tmp.Top = top;
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tmp.Border = border - (border & TOP_BORDER);
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}
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if (Bottom < bottom) {
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tmp.Bottom = bottom;
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tmp.Border = border - (border & BOTTOM_BORDER);
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}
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return tmp;
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}
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/// <summary>
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/// Swaps the values of urx and ury and of lly and llx in order to rotate the rectangle.
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/// </summary>
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/// <returns>a Rectangle</returns>
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public Rectangle Rotate() {
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Rectangle rect = new Rectangle(lly, llx, ury, urx);
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rect.rotation = rotation + 90;
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rect.rotation %= 360;
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return rect;
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}
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// methods to set the membervariables
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/// <summary>
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/// Get/set the upper right y-coordinate.
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/// </summary>
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/// <value>a float</value>
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public virtual float Top {
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get {
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return ury;
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}
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set {
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ury = value;
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}
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}
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/**
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* Enables the border on the specified side.
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*
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* @param side
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* the side to enable. One of <CODE>LEFT, RIGHT, TOP, BOTTOM
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* </CODE>
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*/
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public virtual void EnableBorderSide(int side) {
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if (border == UNDEFINED) {
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border = 0;
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}
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border |= side;
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}
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/**
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* Disables the border on the specified side.
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*
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* @param side
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* the side to disable. One of <CODE>LEFT, RIGHT, TOP, BOTTOM
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* </CODE>
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*/
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public virtual void DisableBorderSide(int side) {
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if (border == UNDEFINED) {
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border = 0;
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}
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border &= ~side;
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}
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/// <summary>
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/// Get/set the border
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/// </summary>
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/// <value>a int</value>
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public virtual int Border {
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get {
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return this.border;
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}
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set {
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border = value;
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}
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}
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/// <summary>
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/// Get/set the grayscale of the rectangle.
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/// </summary>
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/// <value>a float</value>
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public virtual float GrayFill {
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get {
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if (backgroundColor is GrayColor)
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return ((GrayColor)backgroundColor).Gray;
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else
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return 0;
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}
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set {
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backgroundColor = new GrayColor(value); }
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}
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// methods to get the membervariables
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/// <summary>
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/// Get/set the lower left x-coordinate.
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/// </summary>
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/// <value>a float</value>
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public virtual float Left {
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get {
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return llx;
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}
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set {
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llx = value;
|
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}
|
||||
}
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||||
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/// <summary>
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/// Get/set the upper right x-coordinate.
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/// </summary>
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/// <value>a float</value>
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public virtual float Right {
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get {
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return urx;
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}
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||||
|
||||
set {
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urx = value;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
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/// Get/set the lower left y-coordinate.
|
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/// </summary>
|
||||
/// <value>a float</value>
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||||
public virtual float Bottom {
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get {
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return lly;
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}
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set {
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lly = value;
|
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}
|
||||
}
|
||||
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public virtual Color BorderColorBottom {
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get {
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if (borderColorBottom == null) return borderColor;
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return borderColorBottom;
|
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}
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set {
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borderColorBottom = value;
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}
|
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}
|
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public virtual Color BorderColorTop {
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get {
|
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if (borderColorTop == null) return borderColor;
|
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return borderColorTop;
|
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}
|
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set {
|
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borderColorTop = value;
|
||||
}
|
||||
}
|
||||
|
||||
public virtual Color BorderColorLeft {
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||||
get {
|
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if (borderColorLeft == null) return borderColor;
|
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return borderColorLeft;
|
||||
}
|
||||
set {
|
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borderColorLeft = value;
|
||||
}
|
||||
}
|
||||
|
||||
public virtual Color BorderColorRight {
|
||||
get {
|
||||
if (borderColorRight == null) return borderColor;
|
||||
return borderColorRight;
|
||||
}
|
||||
set {
|
||||
borderColorRight = value;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns the lower left x-coordinate, considering a given margin.
|
||||
/// </summary>
|
||||
/// <param name="margin">a margin</param>
|
||||
/// <returns>the lower left x-coordinate</returns>
|
||||
public virtual float GetLeft(float margin) {
|
||||
return llx + margin;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns the upper right x-coordinate, considering a given margin.
|
||||
/// </summary>
|
||||
/// <param name="margin">a margin</param>
|
||||
/// <returns>the upper right x-coordinate</returns>
|
||||
public virtual float GetRight(float margin) {
|
||||
return urx - margin;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns the upper right y-coordinate, considering a given margin.
|
||||
/// </summary>
|
||||
/// <param name="margin">a margin</param>
|
||||
/// <returns>the upper right y-coordinate</returns>
|
||||
public virtual float GetTop(float margin) {
|
||||
return ury - margin;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns the lower left y-coordinate, considering a given margin.
|
||||
/// </summary>
|
||||
/// <param name="margin">a margin</param>
|
||||
/// <returns>the lower left y-coordinate</returns>
|
||||
public virtual float GetBottom(float margin) {
|
||||
return lly + margin;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns the width of the rectangle.
|
||||
/// </summary>
|
||||
/// <value>a width</value>
|
||||
public virtual float Width {
|
||||
get {
|
||||
return urx - llx;
|
||||
}
|
||||
set {
|
||||
throw new InvalidOperationException("The width cannot be set.");
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns the height of the rectangle.
|
||||
/// </summary>
|
||||
/// <value>a height</value>
|
||||
public float Height {
|
||||
get {
|
||||
return ury - lly;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Indicates if the table has borders.
|
||||
/// </summary>
|
||||
/// <returns>a bool</returns>
|
||||
public bool HasBorders() {
|
||||
return (border > 0)
|
||||
&& ((borderWidth > 0) || (borderWidthLeft > 0)
|
||||
|| (borderWidthRight > 0) || (borderWidthTop > 0) || (borderWidthBottom > 0));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Indicates if the table has a some type of border.
|
||||
/// </summary>
|
||||
/// <param name="type">the type of border</param>
|
||||
/// <returns>a bool</returns>
|
||||
public bool HasBorder(int type) {
|
||||
return border != UNDEFINED && (border & type) == type;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Get/set the borderwidth.
|
||||
/// </summary>
|
||||
/// <value>a float</value>
|
||||
public virtual float BorderWidth {
|
||||
get {
|
||||
return borderWidth;
|
||||
}
|
||||
|
||||
set {
|
||||
borderWidth = value;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the color of the border.
|
||||
*
|
||||
* @return a value
|
||||
*/
|
||||
/// <summary>
|
||||
/// Get/set the color of the border.
|
||||
/// </summary>
|
||||
/// <value>a Color</value>
|
||||
public virtual Color BorderColor {
|
||||
get {
|
||||
return borderColor;
|
||||
}
|
||||
|
||||
set {
|
||||
borderColor = value;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the backgroundcolor.
|
||||
*
|
||||
* @return a value
|
||||
*/
|
||||
/// <summary>
|
||||
/// Get/set the backgroundcolor.
|
||||
/// </summary>
|
||||
/// <value>a Color</value>
|
||||
public virtual Color BackgroundColor {
|
||||
get {
|
||||
return backgroundColor;
|
||||
}
|
||||
|
||||
set {
|
||||
backgroundColor = value;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Returns the rotation
|
||||
/// </summary>
|
||||
/// <value>a int</value>
|
||||
public int Rotation {
|
||||
get {
|
||||
return rotation;
|
||||
}
|
||||
}
|
||||
|
||||
public virtual float BorderWidthLeft {
|
||||
get {
|
||||
return GetVariableBorderWidth(borderWidthLeft, LEFT_BORDER);
|
||||
}
|
||||
set {
|
||||
borderWidthLeft = value;
|
||||
UpdateBorderBasedOnWidth(value, LEFT_BORDER);
|
||||
}
|
||||
}
|
||||
|
||||
public virtual float BorderWidthRight {
|
||||
get {
|
||||
return GetVariableBorderWidth(borderWidthRight, RIGHT_BORDER);
|
||||
}
|
||||
set {
|
||||
borderWidthRight = value;
|
||||
UpdateBorderBasedOnWidth(value, RIGHT_BORDER);
|
||||
}
|
||||
}
|
||||
|
||||
public virtual float BorderWidthTop {
|
||||
get {
|
||||
return GetVariableBorderWidth(borderWidthTop, TOP_BORDER);
|
||||
}
|
||||
set {
|
||||
borderWidthTop = value;
|
||||
UpdateBorderBasedOnWidth(value, TOP_BORDER);
|
||||
}
|
||||
}
|
||||
|
||||
public virtual float BorderWidthBottom {
|
||||
get {
|
||||
return GetVariableBorderWidth(borderWidthBottom, BOTTOM_BORDER);
|
||||
}
|
||||
set {
|
||||
borderWidthBottom = value;
|
||||
UpdateBorderBasedOnWidth(value, BOTTOM_BORDER);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates the border flag for a side based on the specified width. A width
|
||||
* of 0 will disable the border on that side. Any other width enables it.
|
||||
*
|
||||
* @param width
|
||||
* width of border
|
||||
* @param side
|
||||
* border side constant
|
||||
*/
|
||||
|
||||
private void UpdateBorderBasedOnWidth(float width, int side) {
|
||||
useVariableBorders = true;
|
||||
if (width > 0) {
|
||||
EnableBorderSide(side);
|
||||
} else {
|
||||
DisableBorderSide(side);
|
||||
}
|
||||
}
|
||||
|
||||
private float GetVariableBorderWidth(float variableWidthValue, int side) {
|
||||
if ((border & side) != 0) {
|
||||
return variableWidthValue != UNDEFINED ? variableWidthValue
|
||||
: borderWidth;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets a parameter indicating if the rectangle has variable borders
|
||||
*
|
||||
* @param useVariableBorders
|
||||
* indication if the rectangle has variable borders
|
||||
*/
|
||||
public virtual bool UseVariableBorders{
|
||||
get {
|
||||
return useVariableBorders;
|
||||
}
|
||||
set {
|
||||
useVariableBorders = value;
|
||||
}
|
||||
}
|
||||
|
||||
public override String ToString() {
|
||||
StringBuilder buf = new StringBuilder("Rectangle: ");
|
||||
buf.Append(Width);
|
||||
buf.Append('x');
|
||||
buf.Append(Height);
|
||||
buf.Append(" (rot: ");
|
||||
buf.Append(rotation);
|
||||
buf.Append(" degrees)");
|
||||
return buf.ToString();
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user