using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.rtf;
using iTextSharp.text.rtf.document;
/*
* $Id: RtfColor.cs,v 1.3 2007/05/26 20:44:50 psoares33 Exp $
* $Name: $
*
* Copyright 2001, 2002, 2003, 2004 by Mark Hall
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the ?GNU LIBRARY GENERAL PUBLIC LICENSE?), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
namespace iTextSharp.text.rtf.style {
/**
* The RtfColor stores one rtf color value for a rtf document
*
* @version $Version:$
* @author Mark Hall (mhall@edu.uni-klu.ac.at)
*/
public class RtfColor : RtfElement, IRtfExtendedElement {
/**
* Constant for RED value
*/
private static byte[] COLOR_RED = DocWriter.GetISOBytes("\\red");
/**
* Constant for GREEN value
*/
private static byte[] COLOR_GREEN = DocWriter.GetISOBytes("\\green");
/**
* Constant for BLUE value
*/
private static byte[] COLOR_BLUE = DocWriter.GetISOBytes("\\blue");
/**
* Constant for the end of one color entry
*/
private const byte COLON = (byte) ';';
/**
* Constant for the number of the colour in the list of colours
*/
private static byte[] COLOR_NUMBER = DocWriter.GetISOBytes("\\cf");
/**
* The number of the colour in the list of colours
*/
private int colorNumber = 0;
/**
* The red value
*/
private int red = 0;
/**
* The green value
*/
private int green = 0;
/**
* The blue value
*/
private int blue = 0;
/**
* Constructor only for use when initializing the RtfColorList
*
* @param doc The RtfDocument this RtfColor belongs to
* @param red The red value to use
* @param green The green value to use
* @param blue The blue value to use
* @param colorNumber The number of the colour in the colour list
*/
protected internal RtfColor(RtfDocument doc, int red, int green, int blue, int colorNumber) : base(doc) {
this.red = red;
this.blue = blue;
this.green = green;
this.colorNumber = colorNumber;
}
/**
* Constructs a RtfColor as a clone of an existing RtfColor
*
* @param doc The RtfDocument this RtfColor belongs to
* @param col The RtfColor to use as a base
*/
public RtfColor(RtfDocument doc, RtfColor col) : base(doc) {
if (col != null) {
this.red = col.GetRed();
this.green = col.GetGreen();
this.blue = col.GetBlue();
}
if (this.document != null) {
this.colorNumber = this.document.GetDocumentHeader().GetColorNumber(this);
}
}
/**
* Constructs a RtfColor based on the Color
*
* @param doc The RtfDocument this RtfColor belongs to
* @param col The Color to base this RtfColor on
*/
public RtfColor(RtfDocument doc, Color col) : base(doc) {
if (col != null) {
this.red = col.R;
this.blue = col.B;
this.green = col.G;
}
if (this.document != null) {
this.colorNumber = this.document.GetDocumentHeader().GetColorNumber(this);
}
}
/**
* Constructs a RtfColor based on the red/green/blue values
*
* @param doc The RtfDocument this RtfColor belongs to
* @param red The red value to use
* @param green The green value to use
* @param blue The blue value to use
*/
public RtfColor(RtfDocument doc, int red, int green, int blue) : base(doc) {
this.red = red;
this.blue = blue;
this.green = green;
if (this.document != null) {
this.colorNumber = this.document.GetDocumentHeader().GetColorNumber(this);
}
}
/**
* unused
* @deprecated replaced by {@link #writeContent(OutputStream)}
*/
public override byte[] Write() {
return new byte[0];
}
/**
* unused
*/
public override void WriteContent(Stream outp) {
}
/**
* Write the definition part of this RtfColor.
*
* @return A byte array with the definition of this colour
*/
public virtual byte[] WriteDefinition() {
MemoryStream result = new MemoryStream();
try {
WriteDefinition(result);
} catch(IOException) {
}
return result.ToArray();
}
/**
* Write the definition part of this RtfColor.
*/
public virtual void WriteDefinition(Stream result) {
byte[] t;
result.Write(COLOR_RED, 0, COLOR_RED.Length);
result.Write(t = IntToByteArray(red), 0, t.Length);
result.Write(COLOR_GREEN, 0, COLOR_GREEN.Length);
result.Write(t = IntToByteArray(green), 0, t.Length);
result.Write(COLOR_BLUE, 0, COLOR_BLUE.Length);
result.Write(t = IntToByteArray(blue), 0, t.Length);
result.WriteByte(COLON);
}
/**
* Writes the beginning of this RtfColor
*
* @return A byte array with the colour start data
*/
public byte[] WriteBegin() {
MemoryStream result = new MemoryStream();
byte[] t;
try {
result.Write(COLOR_NUMBER, 0, COLOR_NUMBER.Length);
result.Write(t = IntToByteArray(colorNumber), 0, t.Length);
} catch (IOException) {
}
return result.ToArray();
}
/**
* Unused
*
* @return An empty (<code>byte[0]</code>) byte array
*/
public byte[] WriteEnd() {
return new byte[0];
}
/**
* Tests if this RtfColor is equal to another RtfColor.
*
* @param obj another RtfColor
* @return <code>True</code> if red, green and blue values of the two colours match,
* <code>false</code> otherwise.
*/
public override bool Equals(Object obj) {
if (!(obj is RtfColor)) {
return false;
}
RtfColor color = (RtfColor) obj;
return (this.red == color.GetRed() && this.green == color.GetGreen() && this.blue == color.GetBlue());
}
/**
* Returns the hash code of this RtfColor. The hash code is
* an integer with the lowest three bytes containing the values
* of red, green and blue.
*
* @return The hash code of this RtfColor
*/
public override int GetHashCode() {
return (this.red << 16) | (this.green << 8) | this.blue;
}
/**
* Get the blue value of this RtfColor
*
* @return The blue value
*/
public int GetBlue() {
return blue;
}
/**
* Get the green value of this RtfColor
*
* @return The green value
*/
public int GetGreen() {
return green;
}
/**
* Get the red value of this RtfColor
*
* @return The red value
*/
public int GetRed() {
return red;
}
/**
* Gets the number of this RtfColor in the list of colours
*
* @return Returns the colorNumber.
*/
public int GetColorNumber() {
return colorNumber;
}
/**
* Sets the RtfDocument this RtfColor belongs to
*
* @param doc The RtfDocument to use
*/
public override void SetRtfDocument(RtfDocument doc) {
base.SetRtfDocument(doc);
if (document != null) {
this.colorNumber = document.GetDocumentHeader().GetColorNumber(this);
}
}
}
}
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