2966 lines
119 KiB
C#
2966 lines
119 KiB
C#
using System;
|
||
using System.Collections;
|
||
using System.Text;
|
||
using iTextSharp.text;
|
||
using iTextSharp.text.exceptions;
|
||
using iTextSharp.text.pdf;
|
||
using iTextSharp.text.pdf.intern;
|
||
|
||
/*
|
||
* $Id: PdfContentByte.cs,v 1.23 2008/05/13 11:25:19 psoares33 Exp $
|
||
*
|
||
*
|
||
* Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
|
||
*
|
||
* 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.pdf {
|
||
/**
|
||
* <CODE>PdfContentByte</CODE> is an object containing the user positioned
|
||
* text and graphic contents of a page. It knows how to apply the proper
|
||
* font encoding.
|
||
*/
|
||
|
||
public class PdfContentByte {
|
||
|
||
/**
|
||
* This class keeps the graphic state of the current page
|
||
*/
|
||
|
||
public class GraphicState {
|
||
|
||
/** This is the font in use */
|
||
internal FontDetails fontDetails;
|
||
|
||
/** This is the color in use */
|
||
internal ColorDetails colorDetails;
|
||
|
||
/** This is the font size in use */
|
||
internal float size;
|
||
|
||
/** The x position of the text line matrix. */
|
||
protected internal float xTLM = 0;
|
||
/** The y position of the text line matrix. */
|
||
protected internal float yTLM = 0;
|
||
/** The current text leading. */
|
||
protected internal float leading = 0;
|
||
|
||
/** The current horizontal scaling */
|
||
protected internal float scale = 100;
|
||
|
||
/** The current character spacing */
|
||
protected internal float charSpace = 0;
|
||
|
||
/** The current word spacing */
|
||
protected internal float wordSpace = 0;
|
||
|
||
internal GraphicState() {
|
||
}
|
||
|
||
internal GraphicState(GraphicState cp) {
|
||
fontDetails = cp.fontDetails;
|
||
colorDetails = cp.colorDetails;
|
||
size = cp.size;
|
||
xTLM = cp.xTLM;
|
||
yTLM = cp.yTLM;
|
||
leading = cp.leading;
|
||
scale = cp.scale;
|
||
charSpace = cp.charSpace;
|
||
wordSpace = cp.wordSpace;
|
||
}
|
||
}
|
||
|
||
/** The alignement is center */
|
||
public const int ALIGN_CENTER = Element.ALIGN_CENTER;
|
||
|
||
/** The alignement is left */
|
||
public const int ALIGN_LEFT = Element.ALIGN_LEFT;
|
||
|
||
/** The alignement is right */
|
||
public const int ALIGN_RIGHT = Element.ALIGN_RIGHT;
|
||
|
||
/** A possible line cap value */
|
||
public const int LINE_CAP_BUTT = 0;
|
||
/** A possible line cap value */
|
||
public const int LINE_CAP_ROUND = 1;
|
||
/** A possible line cap value */
|
||
public const int LINE_CAP_PROJECTING_SQUARE = 2;
|
||
|
||
/** A possible line join value */
|
||
public const int LINE_JOIN_MITER = 0;
|
||
/** A possible line join value */
|
||
public const int LINE_JOIN_ROUND = 1;
|
||
/** A possible line join value */
|
||
public const int LINE_JOIN_BEVEL = 2;
|
||
|
||
/** A possible text rendering value */
|
||
public const int TEXT_RENDER_MODE_FILL = 0;
|
||
/** A possible text rendering value */
|
||
public const int TEXT_RENDER_MODE_STROKE = 1;
|
||
/** A possible text rendering value */
|
||
public const int TEXT_RENDER_MODE_FILL_STROKE = 2;
|
||
/** A possible text rendering value */
|
||
public const int TEXT_RENDER_MODE_INVISIBLE = 3;
|
||
/** A possible text rendering value */
|
||
public const int TEXT_RENDER_MODE_FILL_CLIP = 4;
|
||
/** A possible text rendering value */
|
||
public const int TEXT_RENDER_MODE_STROKE_CLIP = 5;
|
||
/** A possible text rendering value */
|
||
public const int TEXT_RENDER_MODE_FILL_STROKE_CLIP = 6;
|
||
/** A possible text rendering value */
|
||
public const int TEXT_RENDER_MODE_CLIP = 7;
|
||
|
||
private static float[] unitRect = {0, 0, 0, 1, 1, 0, 1, 1};
|
||
// membervariables
|
||
|
||
/** This is the actual content */
|
||
protected ByteBuffer content = new ByteBuffer();
|
||
|
||
/** This is the writer */
|
||
protected PdfWriter writer;
|
||
|
||
/** This is the PdfDocument */
|
||
protected PdfDocument pdf;
|
||
|
||
/** This is the GraphicState in use */
|
||
protected GraphicState state = new GraphicState();
|
||
|
||
/** The list were we save/restore the layer depth */
|
||
protected ArrayList layerDepth;
|
||
|
||
/** The list were we save/restore the state */
|
||
protected ArrayList stateList = new ArrayList();
|
||
|
||
/** The separator between commands.
|
||
*/
|
||
protected int separator = '\n';
|
||
|
||
private int mcDepth = 0;
|
||
private bool inText = false;
|
||
|
||
private static Hashtable abrev = new Hashtable();
|
||
|
||
static PdfContentByte() {
|
||
abrev[PdfName.BITSPERCOMPONENT] = "/BPC ";
|
||
abrev[PdfName.COLORSPACE] = "/CS ";
|
||
abrev[PdfName.DECODE] = "/D ";
|
||
abrev[PdfName.DECODEPARMS] = "/DP ";
|
||
abrev[PdfName.FILTER] = "/F ";
|
||
abrev[PdfName.HEIGHT] = "/H ";
|
||
abrev[PdfName.IMAGEMASK] = "/IM ";
|
||
abrev[PdfName.INTENT] = "/Intent ";
|
||
abrev[PdfName.INTERPOLATE] = "/I ";
|
||
abrev[PdfName.WIDTH] = "/W ";
|
||
}
|
||
|
||
// constructors
|
||
|
||
/**
|
||
* Constructs a new <CODE>PdfContentByte</CODE>-object.
|
||
*
|
||
* @param wr the writer associated to this content
|
||
*/
|
||
|
||
public PdfContentByte(PdfWriter wr) {
|
||
if (wr != null) {
|
||
writer = wr;
|
||
pdf = writer.PdfDocument;
|
||
}
|
||
}
|
||
|
||
// methods to get the content of this object
|
||
|
||
/**
|
||
* Returns the <CODE>string</CODE> representation of this <CODE>PdfContentByte</CODE>-object.
|
||
*
|
||
* @return a <CODE>string</CODE>
|
||
*/
|
||
|
||
public override string ToString() {
|
||
return content.ToString();
|
||
}
|
||
|
||
/**
|
||
* Gets the internal buffer.
|
||
* @return the internal buffer
|
||
*/
|
||
public ByteBuffer InternalBuffer {
|
||
get {
|
||
return content;
|
||
}
|
||
}
|
||
|
||
/** Returns the PDF representation of this <CODE>PdfContentByte</CODE>-object.
|
||
*
|
||
* @param writer the <CODE>PdfWriter</CODE>
|
||
* @return a <CODE>byte</CODE> array with the representation
|
||
*/
|
||
|
||
public byte[] ToPdf(PdfWriter writer) {
|
||
SanityCheck();
|
||
return content.ToByteArray();
|
||
}
|
||
|
||
// methods to add graphical content
|
||
|
||
/**
|
||
* Adds the content of another <CODE>PdfContent</CODE>-object to this object.
|
||
*
|
||
* @param other another <CODE>PdfByteContent</CODE>-object
|
||
*/
|
||
|
||
public void Add(PdfContentByte other) {
|
||
if (other.writer != null && writer != other.writer)
|
||
throw new Exception("Inconsistent writers. Are you mixing two documents?");
|
||
content.Append(other.content);
|
||
}
|
||
|
||
/**
|
||
* Gets the x position of the text line matrix.
|
||
*
|
||
* @return the x position of the text line matrix
|
||
*/
|
||
public float XTLM {
|
||
get {
|
||
return state.xTLM;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Gets the y position of the text line matrix.
|
||
*
|
||
* @return the y position of the text line matrix
|
||
*/
|
||
public float YTLM {
|
||
get {
|
||
return state.yTLM;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Gets the current character spacing.
|
||
*
|
||
* @return the current character spacing
|
||
*/
|
||
public float CharacterSpacing {
|
||
get {
|
||
return state.charSpace;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Gets the current word spacing.
|
||
*
|
||
* @return the current word spacing
|
||
*/
|
||
public float WordSpacing {
|
||
get {
|
||
return state.wordSpace;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Gets the current character spacing.
|
||
*
|
||
* @return the current character spacing
|
||
*/
|
||
public float HorizontalScaling {
|
||
get {
|
||
return state.scale;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Gets the current text leading.
|
||
*
|
||
* @return the current text leading
|
||
*/
|
||
public float Leading {
|
||
get {
|
||
return state.leading;
|
||
}
|
||
}
|
||
|
||
public void SetLeading(float v) {
|
||
state.leading = v;
|
||
content.Append(v).Append(" TL").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the <VAR>Flatness</VAR>.
|
||
* <P>
|
||
* <VAR>Flatness</VAR> sets the maximum permitted distance in device pixels between the
|
||
* mathematically correct path and an approximation constructed from straight line segments.<BR>
|
||
*
|
||
* @param flatness a value
|
||
*/
|
||
|
||
public void SetFlatness(float value) {
|
||
if (value >= 0 && value <= 100) {
|
||
content.Append(value).Append(" i").Append_i(separator);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Changes the <VAR>Line cap style</VAR>.
|
||
* <P>
|
||
* The <VAR>line cap style</VAR> specifies the shape to be used at the end of open subpaths
|
||
* when they are stroked.<BR>
|
||
* Allowed values are 0 (Butt end caps), 1 (Round end caps) and 2 (Projecting square end caps).<BR>
|
||
*
|
||
* @param style a value
|
||
*/
|
||
|
||
public void SetLineCap(int value) {
|
||
if (value >= 0 && value <= 2) {
|
||
content.Append(value).Append(" J").Append_i(separator);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Changes the value of the <VAR>line dash pattern</VAR>.
|
||
* <P>
|
||
* The line dash pattern controls the pattern of dashes and gaps used to stroke paths.
|
||
* It is specified by an <I>array</I> and a <I>phase</I>. The array specifies the length
|
||
* of the alternating dashes and gaps. The phase specifies the distance into the dash
|
||
* pattern to start the dash.<BR>
|
||
*
|
||
* @param phase the value of the phase
|
||
*/
|
||
|
||
public void SetLineDash(float value) {
|
||
content.Append("[] ").Append(value).Append(" d").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the value of the <VAR>line dash pattern</VAR>.
|
||
* <P>
|
||
* The line dash pattern controls the pattern of dashes and gaps used to stroke paths.
|
||
* It is specified by an <I>array</I> and a <I>phase</I>. The array specifies the length
|
||
* of the alternating dashes and gaps. The phase specifies the distance into the dash
|
||
* pattern to start the dash.<BR>
|
||
*
|
||
* @param phase the value of the phase
|
||
* @param unitsOn the number of units that must be 'on' (equals the number of units that must be 'off').
|
||
*/
|
||
|
||
public void SetLineDash(float unitsOn, float phase) {
|
||
content.Append('[').Append(unitsOn).Append("] ").Append(phase).Append(" d").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the value of the <VAR>line dash pattern</VAR>.
|
||
* <P>
|
||
* The line dash pattern controls the pattern of dashes and gaps used to stroke paths.
|
||
* It is specified by an <I>array</I> and a <I>phase</I>. The array specifies the length
|
||
* of the alternating dashes and gaps. The phase specifies the distance into the dash
|
||
* pattern to start the dash.<BR>
|
||
*
|
||
* @param phase the value of the phase
|
||
* @param unitsOn the number of units that must be 'on'
|
||
* @param unitsOff the number of units that must be 'off'
|
||
*/
|
||
|
||
public void SetLineDash(float unitsOn, float unitsOff, float phase) {
|
||
content.Append('[').Append(unitsOn).Append(' ').Append(unitsOff).Append("] ").Append(phase).Append(" d").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the value of the <VAR>line dash pattern</VAR>.
|
||
* <P>
|
||
* The line dash pattern controls the pattern of dashes and gaps used to stroke paths.
|
||
* It is specified by an <I>array</I> and a <I>phase</I>. The array specifies the length
|
||
* of the alternating dashes and gaps. The phase specifies the distance into the dash
|
||
* pattern to start the dash.<BR>
|
||
*
|
||
* @param array length of the alternating dashes and gaps
|
||
* @param phase the value of the phase
|
||
*/
|
||
|
||
public void SetLineDash(float[] array, float phase) {
|
||
content.Append('[');
|
||
for (int i = 0; i < array.Length; i++) {
|
||
content.Append(array[i]);
|
||
if (i < array.Length - 1) content.Append(' ');
|
||
}
|
||
content.Append("] ").Append(phase).Append(" d").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the <VAR>Line join style</VAR>.
|
||
* <P>
|
||
* The <VAR>line join style</VAR> specifies the shape to be used at the corners of paths
|
||
* that are stroked.<BR>
|
||
* Allowed values are 0 (Miter joins), 1 (Round joins) and 2 (Bevel joins).<BR>
|
||
*
|
||
* @param style a value
|
||
*/
|
||
|
||
public void SetLineJoin(int value) {
|
||
if (value >= 0 && value <= 2) {
|
||
content.Append(value).Append(" j").Append_i(separator);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Changes the <VAR>line width</VAR>.
|
||
* <P>
|
||
* The line width specifies the thickness of the line used to stroke a path and is measured
|
||
* in used space units.<BR>
|
||
*
|
||
* @param w a width
|
||
*/
|
||
|
||
public void SetLineWidth(float value) {
|
||
content.Append(value).Append(" w").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the <VAR>Miter limit</VAR>.
|
||
* <P>
|
||
* When two line segments meet at a sharp angle and mitered joins have been specified as the
|
||
* line join style, it is possible for the miter to extend far beyond the thickness of the line
|
||
* stroking path. The miter limit imposes a maximum on the ratio of the miter length to the line
|
||
* witdh. When the limit is exceeded, the join is converted from a miter to a bevel.<BR>
|
||
*
|
||
* @param miterLimit a miter limit
|
||
*/
|
||
|
||
public void SetMiterLimit(float value) {
|
||
if (value > 1) {
|
||
content.Append(value).Append(" M").Append_i(separator);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Modify the current clipping path by intersecting it with the current path, using the
|
||
* nonzero winding number rule to determine which regions lie inside the clipping
|
||
* path.
|
||
*/
|
||
|
||
public void Clip() {
|
||
content.Append('W').Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Modify the current clipping path by intersecting it with the current path, using the
|
||
* even-odd rule to determine which regions lie inside the clipping path.
|
||
*/
|
||
|
||
public void EoClip() {
|
||
content.Append("W*").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the currentgray tint for filling paths (device dependent colors!).
|
||
* <P>
|
||
* Sets the color space to <B>DeviceGray</B> (or the <B>DefaultGray</B> color space),
|
||
* and sets the gray tint to use for filling paths.</P>
|
||
*
|
||
* @param gray a value between 0 (black) and 1 (white)
|
||
*/
|
||
|
||
public virtual void SetGrayFill(float value) {
|
||
content.Append(value).Append(" g").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the current gray tint for filling paths to black.
|
||
*/
|
||
|
||
public virtual void ResetGrayFill() {
|
||
content.Append("0 g").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the currentgray tint for stroking paths (device dependent colors!).
|
||
* <P>
|
||
* Sets the color space to <B>DeviceGray</B> (or the <B>DefaultGray</B> color space),
|
||
* and sets the gray tint to use for stroking paths.</P>
|
||
*
|
||
* @param gray a value between 0 (black) and 1 (white)
|
||
*/
|
||
|
||
public virtual void SetGrayStroke(float value) {
|
||
content.Append(value).Append(" G").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the current gray tint for stroking paths to black.
|
||
*/
|
||
|
||
public virtual void ResetGrayStroke() {
|
||
content.Append("0 G").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Helper to validate and write the RGB color components
|
||
* @param red the intensity of red. A value between 0 and 1
|
||
* @param green the intensity of green. A value between 0 and 1
|
||
* @param blue the intensity of blue. A value between 0 and 1
|
||
*/
|
||
private void HelperRGB(float red, float green, float blue) {
|
||
PdfXConformanceImp.CheckPDFXConformance(writer, PdfXConformanceImp.PDFXKEY_RGB, null);
|
||
if (red < 0)
|
||
red = 0.0f;
|
||
else if (red > 1.0f)
|
||
red = 1.0f;
|
||
if (green < 0)
|
||
green = 0.0f;
|
||
else if (green > 1.0f)
|
||
green = 1.0f;
|
||
if (blue < 0)
|
||
blue = 0.0f;
|
||
else if (blue > 1.0f)
|
||
blue = 1.0f;
|
||
content.Append(red).Append(' ').Append(green).Append(' ').Append(blue);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for filling paths (device dependent colors!).
|
||
* <P>
|
||
* Sets the color space to <B>DeviceRGB</B> (or the <B>DefaultRGB</B> color space),
|
||
* and sets the color to use for filling paths.</P>
|
||
* <P>
|
||
* Following the PDF manual, each operand must be a number between 0 (minimum intensity) and
|
||
* 1 (maximum intensity).</P>
|
||
*
|
||
* @param red the intensity of red. A value between 0 and 1
|
||
* @param green the intensity of green. A value between 0 and 1
|
||
* @param blue the intensity of blue. A value between 0 and 1
|
||
*/
|
||
|
||
public virtual void SetRGBColorFillF(float red, float green, float blue) {
|
||
HelperRGB(red, green, blue);
|
||
content.Append(" rg").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for filling paths to black.
|
||
*/
|
||
|
||
public virtual void ResetRGBColorFill() {
|
||
content.Append("0 g").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for stroking paths (device dependent colors!).
|
||
* <P>
|
||
* Sets the color space to <B>DeviceRGB</B> (or the <B>DefaultRGB</B> color space),
|
||
* and sets the color to use for stroking paths.</P>
|
||
* <P>
|
||
* Following the PDF manual, each operand must be a number between 0 (miniumum intensity) and
|
||
* 1 (maximum intensity).
|
||
*
|
||
* @param red the intensity of red. A value between 0 and 1
|
||
* @param green the intensity of green. A value between 0 and 1
|
||
* @param blue the intensity of blue. A value between 0 and 1
|
||
*/
|
||
|
||
public virtual void SetRGBColorStrokeF(float red, float green, float blue) {
|
||
HelperRGB(red, green, blue);
|
||
content.Append(" RG").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for stroking paths to black.
|
||
*
|
||
*/
|
||
|
||
public virtual void ResetRGBColorStroke() {
|
||
content.Append("0 G").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Helper to validate and write the CMYK color components.
|
||
*
|
||
* @param cyan the intensity of cyan. A value between 0 and 1
|
||
* @param magenta the intensity of magenta. A value between 0 and 1
|
||
* @param yellow the intensity of yellow. A value between 0 and 1
|
||
* @param black the intensity of black. A value between 0 and 1
|
||
*/
|
||
private void HelperCMYK(float cyan, float magenta, float yellow, float black) {
|
||
if (cyan < 0)
|
||
cyan = 0.0f;
|
||
else if (cyan > 1.0f)
|
||
cyan = 1.0f;
|
||
if (magenta < 0)
|
||
magenta = 0.0f;
|
||
else if (magenta > 1.0f)
|
||
magenta = 1.0f;
|
||
if (yellow < 0)
|
||
yellow = 0.0f;
|
||
else if (yellow > 1.0f)
|
||
yellow = 1.0f;
|
||
if (black < 0)
|
||
black = 0.0f;
|
||
else if (black > 1.0f)
|
||
black = 1.0f;
|
||
content.Append(cyan).Append(' ').Append(magenta).Append(' ').Append(yellow).Append(' ').Append(black);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for filling paths (device dependent colors!).
|
||
* <P>
|
||
* Sets the color space to <B>DeviceCMYK</B> (or the <B>DefaultCMYK</B> color space),
|
||
* and sets the color to use for filling paths.</P>
|
||
* <P>
|
||
* Following the PDF manual, each operand must be a number between 0 (no ink) and
|
||
* 1 (maximum ink).</P>
|
||
*
|
||
* @param cyan the intensity of cyan. A value between 0 and 1
|
||
* @param magenta the intensity of magenta. A value between 0 and 1
|
||
* @param yellow the intensity of yellow. A value between 0 and 1
|
||
* @param black the intensity of black. A value between 0 and 1
|
||
*/
|
||
|
||
public virtual void SetCMYKColorFillF(float cyan, float magenta, float yellow, float black) {
|
||
HelperCMYK(cyan, magenta, yellow, black);
|
||
content.Append(" k").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for filling paths to black.
|
||
*
|
||
*/
|
||
|
||
public virtual void ResetCMYKColorFill() {
|
||
content.Append("0 0 0 1 k").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for stroking paths (device dependent colors!).
|
||
* <P>
|
||
* Sets the color space to <B>DeviceCMYK</B> (or the <B>DefaultCMYK</B> color space),
|
||
* and sets the color to use for stroking paths.</P>
|
||
* <P>
|
||
* Following the PDF manual, each operand must be a number between 0 (miniumum intensity) and
|
||
* 1 (maximum intensity).
|
||
*
|
||
* @param cyan the intensity of cyan. A value between 0 and 1
|
||
* @param magenta the intensity of magenta. A value between 0 and 1
|
||
* @param yellow the intensity of yellow. A value between 0 and 1
|
||
* @param black the intensity of black. A value between 0 and 1
|
||
*/
|
||
|
||
public virtual void SetCMYKColorStrokeF(float cyan, float magenta, float yellow, float black) {
|
||
HelperCMYK(cyan, magenta, yellow, black);
|
||
content.Append(" K").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for stroking paths to black.
|
||
*
|
||
*/
|
||
|
||
public virtual void ResetCMYKColorStroke() {
|
||
content.Append("0 0 0 1 K").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Move the current point <I>(x, y)</I>, omitting any connecting line segment.
|
||
*
|
||
* @param x new x-coordinate
|
||
* @param y new y-coordinate
|
||
*/
|
||
|
||
public void MoveTo(float x, float y) {
|
||
content.Append(x).Append(' ').Append(y).Append(" m").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Appends a straight line segment from the current point <I>(x, y)</I>. The new current
|
||
* point is <I>(x, y)</I>.
|
||
*
|
||
* @param x new x-coordinate
|
||
* @param y new y-coordinate
|
||
*/
|
||
|
||
public void LineTo(float x, float y) {
|
||
content.Append(x).Append(' ').Append(y).Append(" l").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Appends a B<>zier curve to the path, starting from the current point.
|
||
*
|
||
* @param x1 x-coordinate of the first control point
|
||
* @param y1 y-coordinate of the first control point
|
||
* @param x2 x-coordinate of the second control point
|
||
* @param y2 y-coordinate of the second control point
|
||
* @param x3 x-coordinaat of the ending point (= new current point)
|
||
* @param y3 y-coordinaat of the ending point (= new current point)
|
||
*/
|
||
|
||
public void CurveTo(float x1, float y1, float x2, float y2, float x3, float y3) {
|
||
content.Append(x1).Append(' ').Append(y1).Append(' ').Append(x2).Append(' ').Append(y2).Append(' ').Append(x3).Append(' ').Append(y3).Append(" c").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Appends a B<>zier curve to the path, starting from the current point.
|
||
*
|
||
* @param x2 x-coordinate of the second control point
|
||
* @param y2 y-coordinate of the second control point
|
||
* @param x3 x-coordinaat of the ending point (= new current point)
|
||
* @param y3 y-coordinaat of the ending point (= new current point)
|
||
*/
|
||
|
||
public void CurveTo(float x2, float y2, float x3, float y3) {
|
||
content.Append(x2).Append(' ').Append(y2).Append(' ').Append(x3).Append(' ').Append(y3).Append(" v").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Appends a B<>zier curve to the path, starting from the current point.
|
||
*
|
||
* @param x1 x-coordinate of the first control point
|
||
* @param y1 y-coordinate of the first control point
|
||
* @param x3 x-coordinaat of the ending point (= new current point)
|
||
* @param y3 y-coordinaat of the ending point (= new current point)
|
||
*/
|
||
|
||
public void CurveFromTo(float x1, float y1, float x3, float y3) {
|
||
content.Append(x1).Append(' ').Append(y1).Append(' ').Append(x3).Append(' ').Append(y3).Append(" y").Append_i(separator);
|
||
}
|
||
|
||
/** Draws a circle. The endpoint will (x+r, y).
|
||
*
|
||
* @param x x center of circle
|
||
* @param y y center of circle
|
||
* @param r radius of circle
|
||
*/
|
||
public void Circle(float x, float y, float r) {
|
||
float b = 0.5523f;
|
||
MoveTo(x + r, y);
|
||
CurveTo(x + r, y + r * b, x + r * b, y + r, x, y + r);
|
||
CurveTo(x - r * b, y + r, x - r, y + r * b, x - r, y);
|
||
CurveTo(x - r, y - r * b, x - r * b, y - r, x, y - r);
|
||
CurveTo(x + r * b, y - r, x + r, y - r * b, x + r, y);
|
||
}
|
||
|
||
|
||
|
||
/**
|
||
* Adds a rectangle to the current path.
|
||
*
|
||
* @param x x-coordinate of the starting point
|
||
* @param y y-coordinate of the starting point
|
||
* @param w width
|
||
* @param h height
|
||
*/
|
||
|
||
public void Rectangle(float x, float y, float w, float h) {
|
||
content.Append(x).Append(' ').Append(y).Append(' ').Append(w).Append(' ').Append(h).Append(" re").Append_i(separator);
|
||
}
|
||
|
||
private bool CompareColors(Color c1, Color c2) {
|
||
if (c1 == null && c2 == null)
|
||
return true;
|
||
if (c1 == null || c2 == null)
|
||
return false;
|
||
if (c1 is ExtendedColor)
|
||
return c1.Equals(c2);
|
||
return c2.Equals(c1);
|
||
}
|
||
|
||
/**
|
||
* Adds a variable width border to the current path.
|
||
* Only use if {@link com.lowagie.text.Rectangle#isUseVariableBorders() Rectangle.isUseVariableBorders}
|
||
* = true.
|
||
* @param rect a <CODE>Rectangle</CODE>
|
||
*/
|
||
public void VariableRectangle(Rectangle rect) {
|
||
float t = rect.Top;
|
||
float b = rect.Bottom;
|
||
float r = rect.Right;
|
||
float l = rect.Left;
|
||
float wt = rect.BorderWidthTop;
|
||
float wb = rect.BorderWidthBottom;
|
||
float wr = rect.BorderWidthRight;
|
||
float wl = rect.BorderWidthLeft;
|
||
Color ct = rect.BorderColorTop;
|
||
Color cb = rect.BorderColorBottom;
|
||
Color cr = rect.BorderColorRight;
|
||
Color cl = rect.BorderColorLeft;
|
||
SaveState();
|
||
SetLineCap(PdfContentByte.LINE_CAP_BUTT);
|
||
SetLineJoin(PdfContentByte.LINE_JOIN_MITER);
|
||
float clw = 0;
|
||
bool cdef = false;
|
||
Color ccol = null;
|
||
bool cdefi = false;
|
||
Color cfil = null;
|
||
// draw top
|
||
if (wt > 0) {
|
||
SetLineWidth(clw = wt);
|
||
cdef = true;
|
||
if (ct == null)
|
||
ResetRGBColorStroke();
|
||
else
|
||
SetColorStroke(ct);
|
||
ccol = ct;
|
||
MoveTo(l, t - wt / 2f);
|
||
LineTo(r, t - wt / 2f);
|
||
Stroke();
|
||
}
|
||
|
||
// Draw bottom
|
||
if (wb > 0) {
|
||
if (wb != clw)
|
||
SetLineWidth(clw = wb);
|
||
if (!cdef || !CompareColors(ccol, cb)) {
|
||
cdef = true;
|
||
if (cb == null)
|
||
ResetRGBColorStroke();
|
||
else
|
||
SetColorStroke(cb);
|
||
ccol = cb;
|
||
}
|
||
MoveTo(r, b + wb / 2f);
|
||
LineTo(l, b + wb / 2f);
|
||
Stroke();
|
||
}
|
||
|
||
// Draw right
|
||
if (wr > 0) {
|
||
if (wr != clw)
|
||
SetLineWidth(clw = wr);
|
||
if (!cdef || !CompareColors(ccol, cr)) {
|
||
cdef = true;
|
||
if (cr == null)
|
||
ResetRGBColorStroke();
|
||
else
|
||
SetColorStroke(cr);
|
||
ccol = cr;
|
||
}
|
||
bool bt = CompareColors(ct, cr);
|
||
bool bb = CompareColors(cb, cr);
|
||
MoveTo(r - wr / 2f, bt ? t : t - wt);
|
||
LineTo(r - wr / 2f, bb ? b : b + wb);
|
||
Stroke();
|
||
if (!bt || !bb) {
|
||
cdefi = true;
|
||
if (cr == null)
|
||
ResetRGBColorFill();
|
||
else
|
||
SetColorFill(cr);
|
||
cfil = cr;
|
||
if (!bt) {
|
||
MoveTo(r, t);
|
||
LineTo(r, t - wt);
|
||
LineTo(r - wr, t - wt);
|
||
Fill();
|
||
}
|
||
if (!bb) {
|
||
MoveTo(r, b);
|
||
LineTo(r, b + wb);
|
||
LineTo(r - wr, b + wb);
|
||
Fill();
|
||
}
|
||
}
|
||
}
|
||
|
||
// Draw Left
|
||
if (wl > 0) {
|
||
if (wl != clw)
|
||
SetLineWidth(wl);
|
||
if (!cdef || !CompareColors(ccol, cl)) {
|
||
if (cl == null)
|
||
ResetRGBColorStroke();
|
||
else
|
||
SetColorStroke(cl);
|
||
}
|
||
bool bt = CompareColors(ct, cl);
|
||
bool bb = CompareColors(cb, cl);
|
||
MoveTo(l + wl / 2f, bt ? t : t - wt);
|
||
LineTo(l + wl / 2f, bb ? b : b + wb);
|
||
Stroke();
|
||
if (!bt || !bb) {
|
||
if (!cdefi || !CompareColors(cfil, cl)) {
|
||
if (cl == null)
|
||
ResetRGBColorFill();
|
||
else
|
||
SetColorFill(cl);
|
||
}
|
||
if (!bt) {
|
||
MoveTo(l, t);
|
||
LineTo(l, t - wt);
|
||
LineTo(l + wl, t - wt);
|
||
Fill();
|
||
}
|
||
if (!bb) {
|
||
MoveTo(l, b);
|
||
LineTo(l, b + wb);
|
||
LineTo(l + wl, b + wb);
|
||
Fill();
|
||
}
|
||
}
|
||
}
|
||
RestoreState();
|
||
}
|
||
|
||
/**
|
||
* Adds a border (complete or partially) to the current path..
|
||
*
|
||
* @param rectangle a <CODE>Rectangle</CODE>
|
||
*/
|
||
|
||
public void Rectangle(Rectangle rectangle) {
|
||
// the coordinates of the border are retrieved
|
||
float x1 = rectangle.Left;
|
||
float y1 = rectangle.Bottom;
|
||
float x2 = rectangle.Right;
|
||
float y2 = rectangle.Top;
|
||
|
||
// the backgroundcolor is set
|
||
Color background = rectangle.BackgroundColor;
|
||
if (background != null) {
|
||
SetColorFill(background);
|
||
Rectangle(x1, y1, x2 - x1, y2 - y1);
|
||
Fill();
|
||
ResetRGBColorFill();
|
||
}
|
||
|
||
// if the element hasn't got any borders, nothing is added
|
||
if (! rectangle.HasBorders()) {
|
||
return;
|
||
}
|
||
|
||
// if any of the individual border colors are set
|
||
// we draw the borders all around using the
|
||
// different colors
|
||
if (rectangle.UseVariableBorders) {
|
||
VariableRectangle(rectangle);
|
||
}
|
||
else {
|
||
// the width is set to the width of the element
|
||
if (rectangle.BorderWidth != iTextSharp.text.Rectangle.UNDEFINED) {
|
||
SetLineWidth(rectangle.BorderWidth);
|
||
}
|
||
|
||
// the color is set to the color of the element
|
||
Color color = rectangle.BorderColor;
|
||
if (color != null) {
|
||
SetColorStroke(color);
|
||
}
|
||
|
||
// if the box is a rectangle, it is added as a rectangle
|
||
if (rectangle.HasBorder(iTextSharp.text.Rectangle.BOX)) {
|
||
this.Rectangle(x1, y1, x2 - x1, y2 - y1);
|
||
}
|
||
// if the border isn't a rectangle, the different sides are added apart
|
||
else {
|
||
if (rectangle.HasBorder(iTextSharp.text.Rectangle.RIGHT_BORDER)) {
|
||
MoveTo(x2, y1);
|
||
LineTo(x2, y2);
|
||
}
|
||
if (rectangle.HasBorder(iTextSharp.text.Rectangle.LEFT_BORDER)) {
|
||
MoveTo(x1, y1);
|
||
LineTo(x1, y2);
|
||
}
|
||
if (rectangle.HasBorder(iTextSharp.text.Rectangle.BOTTOM_BORDER)) {
|
||
MoveTo(x1, y1);
|
||
LineTo(x2, y1);
|
||
}
|
||
if (rectangle.HasBorder(iTextSharp.text.Rectangle.TOP_BORDER)) {
|
||
MoveTo(x1, y2);
|
||
LineTo(x2, y2);
|
||
}
|
||
}
|
||
|
||
Stroke();
|
||
|
||
if (color != null) {
|
||
ResetRGBColorStroke();
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Closes the current subpath by appending a straight line segment from the current point
|
||
* to the starting point of the subpath.
|
||
*/
|
||
|
||
public void ClosePath() {
|
||
content.Append('h').Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Ends the path without filling or stroking it.
|
||
*/
|
||
|
||
public void NewPath() {
|
||
content.Append('n').Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Strokes the path.
|
||
*/
|
||
|
||
public void Stroke() {
|
||
content.Append('S').Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Closes the path and strokes it.
|
||
*/
|
||
|
||
public void ClosePathStroke() {
|
||
content.Append('s').Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Fills the path, using the non-zero winding number rule to determine the region to fill.
|
||
*/
|
||
|
||
public void Fill() {
|
||
content.Append('f').Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Fills the path, using the even-odd rule to determine the region to fill.
|
||
*/
|
||
|
||
public void EoFill() {
|
||
content.Append("f*").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Fills the path using the non-zero winding number rule to determine the region to fill and strokes it.
|
||
*/
|
||
|
||
public void FillStroke() {
|
||
content.Append('B').Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Closes the path, fills it using the non-zero winding number rule to determine the region to fill and strokes it.
|
||
*/
|
||
|
||
public void ClosePathFillStroke() {
|
||
content.Append('b').Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Fills the path, using the even-odd rule to determine the region to fill and strokes it.
|
||
*/
|
||
|
||
public void EoFillStroke() {
|
||
content.Append("B*").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Closes the path, fills it using the even-odd rule to determine the region to fill and strokes it.
|
||
*/
|
||
|
||
public void ClosePathEoFillStroke() {
|
||
content.Append("b*").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Adds an <CODE>Image</CODE> to the page. The <CODE>Image</CODE> must have
|
||
* absolute positioning.
|
||
* @param image the <CODE>Image</CODE> object
|
||
* @throws DocumentException if the <CODE>Image</CODE> does not have absolute positioning
|
||
*/
|
||
public virtual void AddImage(Image image) {
|
||
AddImage(image, false);
|
||
}
|
||
|
||
/**
|
||
* Adds an <CODE>Image</CODE> to the page. The <CODE>Image</CODE> must have
|
||
* absolute positioning. The image can be placed inline.
|
||
* @param image the <CODE>Image</CODE> object
|
||
* @param inlineImage <CODE>true</CODE> to place this image inline, <CODE>false</CODE> otherwise
|
||
* @throws DocumentException if the <CODE>Image</CODE> does not have absolute positioning
|
||
*/
|
||
public virtual void AddImage(Image image, bool inlineImage) {
|
||
if (!image.HasAbsolutePosition())
|
||
throw new DocumentException("The image must have absolute positioning.");
|
||
float[] matrix = image.Matrix;
|
||
matrix[Image.CX] = image.AbsoluteX - matrix[Image.CX];
|
||
matrix[Image.CY] = image.AbsoluteY - matrix[Image.CY];
|
||
AddImage(image, matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5], inlineImage);
|
||
}
|
||
|
||
/**
|
||
* Adds an <CODE>Image</CODE> to the page. The positioning of the <CODE>Image</CODE>
|
||
* is done with the transformation matrix. To position an <CODE>image</CODE> at (x,y)
|
||
* use AddImage(image, image_width, 0, 0, image_height, x, y).
|
||
* @param image the <CODE>Image</CODE> object
|
||
* @param a an element of the transformation matrix
|
||
* @param b an element of the transformation matrix
|
||
* @param c an element of the transformation matrix
|
||
* @param d an element of the transformation matrix
|
||
* @param e an element of the transformation matrix
|
||
* @param f an element of the transformation matrix
|
||
* @throws DocumentException on error
|
||
*/
|
||
public virtual void AddImage(Image image, float a, float b, float c, float d, float e, float f) {
|
||
AddImage(image, a, b, c, d, e, f, false);
|
||
}
|
||
|
||
/**
|
||
* Adds an <CODE>Image</CODE> to the page. The positioning of the <CODE>Image</CODE>
|
||
* is done with the transformation matrix. To position an <CODE>image</CODE> at (x,y)
|
||
* use AddImage(image, image_width, 0, 0, image_height, x, y). The image can be placed inline.
|
||
* @param image the <CODE>Image</CODE> object
|
||
* @param a an element of the transformation matrix
|
||
* @param b an element of the transformation matrix
|
||
* @param c an element of the transformation matrix
|
||
* @param d an element of the transformation matrix
|
||
* @param e an element of the transformation matrix
|
||
* @param f an element of the transformation matrix
|
||
* @param inlineImage <CODE>true</CODE> to place this image inline, <CODE>false</CODE> otherwise
|
||
* @throws DocumentException on error
|
||
*/
|
||
public virtual void AddImage(Image image, float a, float b, float c, float d, float e, float f, bool inlineImage) {
|
||
if (image.Layer != null)
|
||
BeginLayer(image.Layer);
|
||
if (image.IsImgTemplate()) {
|
||
writer.AddDirectImageSimple(image);
|
||
PdfTemplate template = image.TemplateData;
|
||
float w = template.Width;
|
||
float h = template.Height;
|
||
AddTemplate(template, a / w, b / w, c / h, d / h, e, f);
|
||
}
|
||
else {
|
||
content.Append("q ");
|
||
content.Append(a).Append(' ');
|
||
content.Append(b).Append(' ');
|
||
content.Append(c).Append(' ');
|
||
content.Append(d).Append(' ');
|
||
content.Append(e).Append(' ');
|
||
content.Append(f).Append(" cm");
|
||
if (inlineImage) {
|
||
content.Append("\nBI\n");
|
||
PdfImage pimage = new PdfImage(image, "", null);
|
||
if (image is ImgJBIG2) {
|
||
byte[] globals = ((ImgJBIG2)image).GlobalBytes;
|
||
if (globals != null) {
|
||
PdfDictionary decodeparms = new PdfDictionary();
|
||
decodeparms.Put(PdfName.JBIG2GLOBALS, writer.GetReferenceJBIG2Globals(globals));
|
||
pimage.Put(PdfName.DECODEPARMS, decodeparms);
|
||
}
|
||
}
|
||
foreach (PdfName key in pimage.Keys) {
|
||
PdfObject value = pimage.Get(key);
|
||
String s = (String)abrev[key];
|
||
if (s == null)
|
||
continue;
|
||
content.Append(s);
|
||
bool check = true;
|
||
if (key.Equals(PdfName.COLORSPACE) && value.IsArray()) {
|
||
PdfArray ar = (PdfArray)value;
|
||
if (ar.Size == 4
|
||
&& PdfName.INDEXED.Equals(ar.GetAsName(0))
|
||
&& ar[1].IsName()
|
||
&& ar[2].IsNumber()
|
||
&& ar[3].IsString()
|
||
) {
|
||
check = false;
|
||
}
|
||
|
||
}
|
||
if (check && key.Equals(PdfName.COLORSPACE) && !value.IsName()) {
|
||
PdfName cs = writer.GetColorspaceName();
|
||
PageResources prs = PageResources;
|
||
prs.AddColor(cs, writer.AddToBody(value).IndirectReference);
|
||
value = cs;
|
||
}
|
||
value.ToPdf(null, content);
|
||
content.Append('\n');
|
||
}
|
||
content.Append("ID\n");
|
||
pimage.WriteContent(content);
|
||
content.Append("\nEI\nQ").Append_i(separator);
|
||
}
|
||
else {
|
||
PdfName name;
|
||
PageResources prs = PageResources;
|
||
Image maskImage = image.ImageMask;
|
||
if (maskImage != null) {
|
||
name = writer.AddDirectImageSimple(maskImage);
|
||
prs.AddXObject(name, writer.GetImageReference(name));
|
||
}
|
||
name = writer.AddDirectImageSimple(image);
|
||
name = prs.AddXObject(name, writer.GetImageReference(name));
|
||
content.Append(' ').Append(name.GetBytes()).Append(" Do Q").Append_i(separator);
|
||
}
|
||
}
|
||
if (image.HasBorders()) {
|
||
SaveState();
|
||
float w = image.Width;
|
||
float h = image.Height;
|
||
ConcatCTM(a / w, b / w, c / h, d / h, e, f);
|
||
Rectangle(image);
|
||
RestoreState();
|
||
}
|
||
if (image.Layer != null)
|
||
EndLayer();
|
||
Annotation annot = image.Annotation;
|
||
if (annot == null)
|
||
return;
|
||
float[] r = new float[unitRect.Length];
|
||
for (int k = 0; k < unitRect.Length; k += 2) {
|
||
r[k] = a * unitRect[k] + c * unitRect[k + 1] + e;
|
||
r[k + 1] = b * unitRect[k] + d * unitRect[k + 1] + f;
|
||
}
|
||
float llx = r[0];
|
||
float lly = r[1];
|
||
float urx = llx;
|
||
float ury = lly;
|
||
for (int k = 2; k < r.Length; k += 2) {
|
||
llx = Math.Min(llx, r[k]);
|
||
lly = Math.Min(lly, r[k + 1]);
|
||
urx = Math.Max(urx, r[k]);
|
||
ury = Math.Max(ury, r[k + 1]);
|
||
}
|
||
annot = new Annotation(annot);
|
||
annot.SetDimensions(llx, lly, urx, ury);
|
||
PdfAnnotation an = PdfAnnotationsImp.ConvertAnnotation(writer, annot, new Rectangle(llx, lly, urx, ury));
|
||
if (an == null)
|
||
return;
|
||
AddAnnotation(an);
|
||
}
|
||
|
||
/**
|
||
* Makes this <CODE>PdfContentByte</CODE> empty.
|
||
* Calls <code>reset( true )</code>
|
||
*/
|
||
public void Reset() {
|
||
Reset( true );
|
||
}
|
||
|
||
/**
|
||
* Makes this <CODE>PdfContentByte</CODE> empty.
|
||
* @param validateContent will call <code>sanityCheck()</code> if true.
|
||
* @since 2.1.6
|
||
*/
|
||
public void Reset( bool validateContent ) {
|
||
content.Reset();
|
||
if (validateContent) {
|
||
SanityCheck();
|
||
}
|
||
state = new GraphicState();
|
||
}
|
||
|
||
/**
|
||
* Starts the writing of text.
|
||
*/
|
||
public void BeginText() {
|
||
if (inText) {
|
||
throw new IllegalPdfSyntaxException("Unbalanced begin/end text operators." );
|
||
}
|
||
inText = true;
|
||
state.xTLM = 0;
|
||
state.yTLM = 0;
|
||
content.Append("BT").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Ends the writing of text and makes the current font invalid.
|
||
*/
|
||
public void EndText() {
|
||
if (!inText) {
|
||
throw new IllegalPdfSyntaxException("Unbalanced begin/end text operators." );
|
||
}
|
||
inText = false;
|
||
content.Append("ET").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Saves the graphic state. <CODE>saveState</CODE> and
|
||
* <CODE>restoreState</CODE> must be balanced.
|
||
*/
|
||
public void SaveState() {
|
||
content.Append('q').Append_i(separator);
|
||
stateList.Add(new GraphicState(state));
|
||
}
|
||
|
||
/**
|
||
* Restores the graphic state. <CODE>saveState</CODE> and
|
||
* <CODE>restoreState</CODE> must be balanced.
|
||
*/
|
||
public void RestoreState() {
|
||
content.Append('Q').Append_i(separator);
|
||
int idx = stateList.Count - 1;
|
||
if (idx < 0)
|
||
throw new IllegalPdfSyntaxException("Unbalanced save/restore state operators.");
|
||
state = (GraphicState)stateList[idx];
|
||
stateList.RemoveAt(idx);
|
||
}
|
||
|
||
/**
|
||
* Sets the character spacing parameter.
|
||
*
|
||
* @param charSpace a parameter
|
||
*/
|
||
public void SetCharacterSpacing(float value) {
|
||
state.charSpace = value;
|
||
content.Append(value).Append(" Tc").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Sets the word spacing parameter.
|
||
*
|
||
* @param wordSpace a parameter
|
||
*/
|
||
public void SetWordSpacing(float value) {
|
||
state.wordSpace = value;
|
||
content.Append(value).Append(" Tw").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Sets the horizontal scaling parameter.
|
||
*
|
||
* @param scale a parameter
|
||
*/
|
||
public void SetHorizontalScaling(float value) {
|
||
state.scale = value;
|
||
content.Append(value).Append(" Tz").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Set the font and the size for the subsequent text writing.
|
||
*
|
||
* @param bf the font
|
||
* @param size the font size in points
|
||
*/
|
||
public virtual void SetFontAndSize(BaseFont bf, float size) {
|
||
CheckWriter();
|
||
if (size < 0.0001f && size > -0.0001f)
|
||
throw new ArgumentException("Font size too small: " + size);
|
||
state.size = size;
|
||
state.fontDetails = writer.AddSimple(bf);
|
||
PageResources prs = PageResources;
|
||
PdfName name = state.fontDetails.FontName;
|
||
name = prs.AddFont(name, state.fontDetails.IndirectReference);
|
||
content.Append(name.GetBytes()).Append(' ').Append(size).Append(" Tf").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Sets the text rendering parameter.
|
||
*
|
||
* @param rendering a parameter
|
||
*/
|
||
public void SetTextRenderingMode(int value) {
|
||
content.Append(value).Append(" Tr").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Sets the text rise parameter.
|
||
* <P>
|
||
* This allows to write text in subscript or basescript mode.</P>
|
||
*
|
||
* @param rise a parameter
|
||
*/
|
||
public void SetTextRise(float value) {
|
||
content.Append(value).Append(" Ts").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* A helper to insert into the content stream the <CODE>text</CODE>
|
||
* converted to bytes according to the font's encoding.
|
||
*
|
||
* @param text the text to write
|
||
*/
|
||
private void ShowText2(string text) {
|
||
if (state.fontDetails == null)
|
||
throw new Exception("Font and size must be set before writing any text");
|
||
byte[] b = state.fontDetails.ConvertToBytes(text);
|
||
EscapeString(b, content);
|
||
}
|
||
|
||
/**
|
||
* Shows the <CODE>text</CODE>.
|
||
*
|
||
* @param text the text to write
|
||
*/
|
||
public void ShowText(string text) {
|
||
ShowText2(text);
|
||
content.Append("Tj").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Constructs a kern array for a text in a certain font
|
||
* @param text the text
|
||
* @param font the font
|
||
* @return a PdfTextArray
|
||
*/
|
||
public static PdfTextArray GetKernArray(String text, BaseFont font) {
|
||
PdfTextArray pa = new PdfTextArray();
|
||
StringBuilder acc = new StringBuilder();
|
||
int len = text.Length - 1;
|
||
char[] c = text.ToCharArray();
|
||
if (len >= 0)
|
||
acc.Append(c, 0, 1);
|
||
for (int k = 0; k < len; ++k) {
|
||
char c2 = c[k + 1];
|
||
int kern = font.GetKerning(c[k], c2);
|
||
if (kern == 0) {
|
||
acc.Append(c2);
|
||
}
|
||
else {
|
||
pa.Add(acc.ToString());
|
||
acc.Length = 0;
|
||
acc.Append(c, k + 1, 1);
|
||
pa.Add(-kern);
|
||
}
|
||
}
|
||
pa.Add(acc.ToString());
|
||
return pa;
|
||
}
|
||
|
||
/**
|
||
* Shows the <CODE>text</CODE> kerned.
|
||
*
|
||
* @param text the text to write
|
||
*/
|
||
public void ShowTextKerned(String text) {
|
||
if (state.fontDetails == null)
|
||
throw new ArgumentNullException("Font and size must be set before writing any text");
|
||
BaseFont bf = state.fontDetails.BaseFont;
|
||
if (bf.HasKernPairs())
|
||
ShowText(GetKernArray(text, bf));
|
||
else
|
||
ShowText(text);
|
||
}
|
||
|
||
/**
|
||
* Moves to the next line and shows <CODE>text</CODE>.
|
||
*
|
||
* @param text the text to write
|
||
*/
|
||
public void NewlineShowText(string text) {
|
||
state.yTLM -= state.leading;
|
||
ShowText2(text);
|
||
content.Append('\'').Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Moves to the next line and shows text string, using the given values of the character and word spacing parameters.
|
||
*
|
||
* @param wordSpacing a parameter
|
||
* @param charSpacing a parameter
|
||
* @param text the text to write
|
||
*/
|
||
public void NewlineShowText(float wordSpacing, float charSpacing, string text) {
|
||
state.yTLM -= state.leading;
|
||
content.Append(wordSpacing).Append(' ').Append(charSpacing);
|
||
ShowText2(text);
|
||
content.Append("\"").Append_i(separator);
|
||
|
||
// The " operator sets charSpace and wordSpace into graphics state
|
||
// (cfr PDF reference v1.6, table 5.6)
|
||
state.charSpace = charSpacing;
|
||
state.wordSpace = wordSpacing;
|
||
}
|
||
|
||
/**
|
||
* Changes the text matrix.
|
||
* <P>
|
||
* Remark: this operation also initializes the current point position.</P>
|
||
*
|
||
* @param a operand 1,1 in the matrix
|
||
* @param b operand 1,2 in the matrix
|
||
* @param c operand 2,1 in the matrix
|
||
* @param d operand 2,2 in the matrix
|
||
* @param x operand 3,1 in the matrix
|
||
* @param y operand 3,2 in the matrix
|
||
*/
|
||
public void SetTextMatrix(float a, float b, float c, float d, float x, float y) {
|
||
state.xTLM = x;
|
||
state.yTLM = y;
|
||
content.Append(a).Append(' ').Append(b).Append_i(' ')
|
||
.Append(c).Append_i(' ').Append(d).Append_i(' ')
|
||
.Append(x).Append_i(' ').Append(y).Append(" Tm").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the text matrix. The first four parameters are {1,0,0,1}.
|
||
* <P>
|
||
* Remark: this operation also initializes the current point position.</P>
|
||
*
|
||
* @param x operand 3,1 in the matrix
|
||
* @param y operand 3,2 in the matrix
|
||
*/
|
||
public void SetTextMatrix(float x, float y) {
|
||
SetTextMatrix(1, 0, 0, 1, x, y);
|
||
}
|
||
|
||
/**
|
||
* Moves to the start of the next line, offset from the start of the current line.
|
||
*
|
||
* @param x x-coordinate of the new current point
|
||
* @param y y-coordinate of the new current point
|
||
*/
|
||
public void MoveText(float x, float y) {
|
||
state.xTLM += x;
|
||
state.yTLM += y;
|
||
content.Append(x).Append(' ').Append(y).Append(" Td").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Moves to the start of the next line, offset from the start of the current line.
|
||
* <P>
|
||
* As a side effect, this sets the leading parameter in the text state.</P>
|
||
*
|
||
* @param x offset of the new current point
|
||
* @param y y-coordinate of the new current point
|
||
*/
|
||
public void MoveTextWithLeading(float x, float y) {
|
||
state.xTLM += x;
|
||
state.yTLM += y;
|
||
state.leading = -y;
|
||
content.Append(x).Append(' ').Append(y).Append(" TD").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Moves to the start of the next line.
|
||
*/
|
||
public void NewlineText() {
|
||
state.yTLM -= state.leading;
|
||
content.Append("T*").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Gets the size of this content.
|
||
*
|
||
* @return the size of the content
|
||
*/
|
||
internal int Size {
|
||
get {
|
||
return content.Size;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Escapes a <CODE>byte</CODE> array according to the PDF conventions.
|
||
*
|
||
* @param b the <CODE>byte</CODE> array to escape
|
||
* @return an escaped <CODE>byte</CODE> array
|
||
*/
|
||
internal static byte[] EscapeString(byte[] b) {
|
||
ByteBuffer content = new ByteBuffer();
|
||
EscapeString(b, content);
|
||
return content.ToByteArray();
|
||
}
|
||
|
||
/**
|
||
* Escapes a <CODE>byte</CODE> array according to the PDF conventions.
|
||
*
|
||
* @param b the <CODE>byte</CODE> array to escape
|
||
*/
|
||
internal static void EscapeString(byte[] b, ByteBuffer content) {
|
||
content.Append_i('(');
|
||
for (int k = 0; k < b.Length; ++k) {
|
||
byte c = b[k];
|
||
switch ((int)c) {
|
||
case '\r':
|
||
content.Append("\\r");
|
||
break;
|
||
case '\n':
|
||
content.Append("\\n");
|
||
break;
|
||
case '\t':
|
||
content.Append("\\t");
|
||
break;
|
||
case '\b':
|
||
content.Append("\\b");
|
||
break;
|
||
case '\f':
|
||
content.Append("\\f");
|
||
break;
|
||
case '(':
|
||
case ')':
|
||
case '\\':
|
||
content.Append_i('\\').Append_i(c);
|
||
break;
|
||
default:
|
||
content.Append_i(c);
|
||
break;
|
||
}
|
||
}
|
||
content.Append(')');
|
||
}
|
||
|
||
/**
|
||
* Adds a named outline to the document.
|
||
*
|
||
* @param outline the outline
|
||
* @param name the name for the local destination
|
||
*/
|
||
public void AddOutline(PdfOutline outline, string name) {
|
||
CheckWriter();
|
||
pdf.AddOutline(outline, name);
|
||
}
|
||
/**
|
||
* Gets the root outline.
|
||
*
|
||
* @return the root outline
|
||
*/
|
||
public PdfOutline RootOutline {
|
||
get {
|
||
CheckWriter();
|
||
return pdf.RootOutline;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Computes the width of the given string taking in account
|
||
* the current values of "Character spacing", "Word Spacing"
|
||
* and "Horizontal Scaling".
|
||
* The additional spacing is not computed for the last character
|
||
* of the string.
|
||
* @param text the string to get width of
|
||
* @param kerned the kerning option
|
||
* @return the width
|
||
*/
|
||
|
||
public float GetEffectiveStringWidth(String text, bool kerned) {
|
||
BaseFont bf = state.fontDetails.BaseFont;
|
||
|
||
float w;
|
||
if (kerned)
|
||
w = bf.GetWidthPointKerned(text, state.size);
|
||
else
|
||
w = bf.GetWidthPoint(text, state.size);
|
||
|
||
if (state.charSpace != 0.0f && text.Length > 1) {
|
||
w += state.charSpace * (text.Length -1);
|
||
}
|
||
|
||
int ft = bf.FontType;
|
||
if (state.wordSpace != 0.0f && (ft == BaseFont.FONT_TYPE_T1 || ft == BaseFont.FONT_TYPE_TT || ft == BaseFont.FONT_TYPE_T3)) {
|
||
for (int i = 0; i < (text.Length -1); i++) {
|
||
if (text[i] == ' ')
|
||
w += state.wordSpace;
|
||
}
|
||
}
|
||
if (state.scale != 100.0)
|
||
w = (w * state.scale) / 100.0f;
|
||
|
||
//System.out.Println("String width = " + Float.ToString(w));
|
||
return w;
|
||
}
|
||
|
||
/**
|
||
* Shows text right, left or center aligned with rotation.
|
||
* @param alignment the alignment can be ALIGN_CENTER, ALIGN_RIGHT or ALIGN_LEFT
|
||
* @param text the text to show
|
||
* @param x the x pivot position
|
||
* @param y the y pivot position
|
||
* @param rotation the rotation to be applied in degrees counterclockwise
|
||
*/
|
||
public void ShowTextAligned(int alignment, String text, float x, float y, float rotation) {
|
||
ShowTextAligned(alignment, text, x, y, rotation, false);
|
||
}
|
||
|
||
private void ShowTextAligned(int alignment, String text, float x, float y, float rotation, bool kerned) {
|
||
if (state.fontDetails == null)
|
||
throw new Exception("Font and size must be set before writing any text");
|
||
if (rotation == 0) {
|
||
switch (alignment) {
|
||
case ALIGN_CENTER:
|
||
x -= GetEffectiveStringWidth(text, kerned) / 2;
|
||
break;
|
||
case ALIGN_RIGHT:
|
||
x -= GetEffectiveStringWidth(text, kerned);
|
||
break;
|
||
}
|
||
SetTextMatrix(x, y);
|
||
if (kerned)
|
||
ShowTextKerned(text);
|
||
else
|
||
ShowText(text);
|
||
}
|
||
else {
|
||
double alpha = rotation * Math.PI / 180.0;
|
||
float cos = (float)Math.Cos(alpha);
|
||
float sin = (float)Math.Sin(alpha);
|
||
float len;
|
||
switch (alignment) {
|
||
case ALIGN_CENTER:
|
||
len = GetEffectiveStringWidth(text, kerned) / 2;
|
||
x -= len * cos;
|
||
y -= len * sin;
|
||
break;
|
||
case ALIGN_RIGHT:
|
||
len = GetEffectiveStringWidth(text, kerned);
|
||
x -= len * cos;
|
||
y -= len * sin;
|
||
break;
|
||
}
|
||
SetTextMatrix(cos, sin, -sin, cos, x, y);
|
||
if (kerned)
|
||
ShowTextKerned(text);
|
||
else
|
||
ShowText(text);
|
||
SetTextMatrix(0f, 0f);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Shows text kerned right, left or center aligned with rotation.
|
||
* @param alignment the alignment can be ALIGN_CENTER, ALIGN_RIGHT or ALIGN_LEFT
|
||
* @param text the text to show
|
||
* @param x the x pivot position
|
||
* @param y the y pivot position
|
||
* @param rotation the rotation to be applied in degrees counterclockwise
|
||
*/
|
||
public void ShowTextAlignedKerned(int alignment, String text, float x, float y, float rotation) {
|
||
ShowTextAligned(alignment, text, x, y, rotation, true);
|
||
}
|
||
|
||
/**
|
||
* Concatenate a matrix to the current transformation matrix.
|
||
* @param a an element of the transformation matrix
|
||
* @param b an element of the transformation matrix
|
||
* @param c an element of the transformation matrix
|
||
* @param d an element of the transformation matrix
|
||
* @param e an element of the transformation matrix
|
||
* @param f an element of the transformation matrix
|
||
**/
|
||
public void ConcatCTM(float a, float b, float c, float d, float e, float f) {
|
||
content.Append(a).Append(' ').Append(b).Append(' ').Append(c).Append(' ');
|
||
content.Append(d).Append(' ').Append(e).Append(' ').Append(f).Append(" cm").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Generates an array of bezier curves to draw an arc.
|
||
* <P>
|
||
* (x1, y1) and (x2, y2) are the corners of the enclosing rectangle.
|
||
* Angles, measured in degrees, start with 0 to the right (the positive X
|
||
* axis) and increase counter-clockwise. The arc extends from startAng
|
||
* to startAng+extent. I.e. startAng=0 and extent=180 yields an openside-down
|
||
* semi-circle.
|
||
* <P>
|
||
* The resulting coordinates are of the form float[]{x1,y1,x2,y2,x3,y3, x4,y4}
|
||
* such that the curve goes from (x1, y1) to (x4, y4) with (x2, y2) and
|
||
* (x3, y3) as their respective Bezier control points.
|
||
* <P>
|
||
* Note: this code was taken from ReportLab (www.reportlab.com), an excelent
|
||
* PDF generator for Python.
|
||
*
|
||
* @param x1 a corner of the enclosing rectangle
|
||
* @param y1 a corner of the enclosing rectangle
|
||
* @param x2 a corner of the enclosing rectangle
|
||
* @param y2 a corner of the enclosing rectangle
|
||
* @param startAng starting angle in degrees
|
||
* @param extent angle extent in degrees
|
||
* @return a list of float[] with the bezier curves
|
||
*/
|
||
public static ArrayList BezierArc(float x1, float y1, float x2, float y2, float startAng, float extent) {
|
||
float tmp;
|
||
if (x1 > x2) {
|
||
tmp = x1;
|
||
x1 = x2;
|
||
x2 = tmp;
|
||
}
|
||
if (y2 > y1) {
|
||
tmp = y1;
|
||
y1 = y2;
|
||
y2 = tmp;
|
||
}
|
||
|
||
float fragAngle;
|
||
int Nfrag;
|
||
if (Math.Abs(extent) <= 90f) {
|
||
fragAngle = extent;
|
||
Nfrag = 1;
|
||
}
|
||
else {
|
||
Nfrag = (int)(Math.Ceiling(Math.Abs(extent)/90f));
|
||
fragAngle = extent / Nfrag;
|
||
}
|
||
float x_cen = (x1+x2)/2f;
|
||
float y_cen = (y1+y2)/2f;
|
||
float rx = (x2-x1)/2f;
|
||
float ry = (y2-y1)/2f;
|
||
float halfAng = (float)(fragAngle * Math.PI / 360.0);
|
||
float kappa = (float)(Math.Abs(4.0 / 3.0 * (1.0 - Math.Cos(halfAng)) / Math.Sin(halfAng)));
|
||
ArrayList pointList = new ArrayList();
|
||
for (int i = 0; i < Nfrag; ++i) {
|
||
float theta0 = (float)((startAng + i*fragAngle) * Math.PI / 180.0);
|
||
float theta1 = (float)((startAng + (i+1)*fragAngle) * Math.PI / 180.0);
|
||
float cos0 = (float)Math.Cos(theta0);
|
||
float cos1 = (float)Math.Cos(theta1);
|
||
float sin0 = (float)Math.Sin(theta0);
|
||
float sin1 = (float)Math.Sin(theta1);
|
||
if (fragAngle > 0f) {
|
||
pointList.Add(new float[]{x_cen + rx * cos0,
|
||
y_cen - ry * sin0,
|
||
x_cen + rx * (cos0 - kappa * sin0),
|
||
y_cen - ry * (sin0 + kappa * cos0),
|
||
x_cen + rx * (cos1 + kappa * sin1),
|
||
y_cen - ry * (sin1 - kappa * cos1),
|
||
x_cen + rx * cos1,
|
||
y_cen - ry * sin1});
|
||
}
|
||
else {
|
||
pointList.Add(new float[]{x_cen + rx * cos0,
|
||
y_cen - ry * sin0,
|
||
x_cen + rx * (cos0 + kappa * sin0),
|
||
y_cen - ry * (sin0 - kappa * cos0),
|
||
x_cen + rx * (cos1 - kappa * sin1),
|
||
y_cen - ry * (sin1 + kappa * cos1),
|
||
x_cen + rx * cos1,
|
||
y_cen - ry * sin1});
|
||
}
|
||
}
|
||
return pointList;
|
||
}
|
||
|
||
/**
|
||
* Draws a partial ellipse inscribed within the rectangle x1,y1,x2,y2,
|
||
* starting at startAng degrees and covering extent degrees. Angles
|
||
* start with 0 to the right (+x) and increase counter-clockwise.
|
||
*
|
||
* @param x1 a corner of the enclosing rectangle
|
||
* @param y1 a corner of the enclosing rectangle
|
||
* @param x2 a corner of the enclosing rectangle
|
||
* @param y2 a corner of the enclosing rectangle
|
||
* @param startAng starting angle in degrees
|
||
* @param extent angle extent in degrees
|
||
*/
|
||
public void Arc(float x1, float y1, float x2, float y2, float startAng, float extent) {
|
||
ArrayList ar = BezierArc(x1, y1, x2, y2, startAng, extent);
|
||
if (ar.Count == 0)
|
||
return;
|
||
float[] pt = (float [])ar[0];
|
||
MoveTo(pt[0], pt[1]);
|
||
for (int k = 0; k < ar.Count; ++k) {
|
||
pt = (float [])ar[k];
|
||
CurveTo(pt[2], pt[3], pt[4], pt[5], pt[6], pt[7]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Draws an ellipse inscribed within the rectangle x1,y1,x2,y2.
|
||
*
|
||
* @param x1 a corner of the enclosing rectangle
|
||
* @param y1 a corner of the enclosing rectangle
|
||
* @param x2 a corner of the enclosing rectangle
|
||
* @param y2 a corner of the enclosing rectangle
|
||
*/
|
||
public void Ellipse(float x1, float y1, float x2, float y2) {
|
||
Arc(x1, y1, x2, y2, 0f, 360f);
|
||
}
|
||
|
||
/**
|
||
* Create a new colored tiling pattern.
|
||
*
|
||
* @param width the width of the pattern
|
||
* @param height the height of the pattern
|
||
* @param xstep the desired horizontal spacing between pattern cells.
|
||
* May be either positive or negative, but not zero.
|
||
* @param ystep the desired vertical spacing between pattern cells.
|
||
* May be either positive or negative, but not zero.
|
||
* @return the <CODE>PdfPatternPainter</CODE> where the pattern will be created
|
||
*/
|
||
public PdfPatternPainter CreatePattern(float width, float height, float xstep, float ystep) {
|
||
CheckWriter();
|
||
if ( xstep == 0.0f || ystep == 0.0f )
|
||
throw new Exception("XStep or YStep can not be ZERO.");
|
||
PdfPatternPainter painter = new PdfPatternPainter(writer);
|
||
painter.Width = width;
|
||
painter.Height = height;
|
||
painter.XStep = xstep;
|
||
painter.YStep = ystep;
|
||
writer.AddSimplePattern(painter);
|
||
return painter;
|
||
}
|
||
|
||
/**
|
||
* Create a new colored tiling pattern. Variables xstep and ystep are set to the same values
|
||
* of width and height.
|
||
* @param width the width of the pattern
|
||
* @param height the height of the pattern
|
||
* @return the <CODE>PdfPatternPainter</CODE> where the pattern will be created
|
||
*/
|
||
public PdfPatternPainter CreatePattern(float width, float height) {
|
||
return CreatePattern(width, height, width, height);
|
||
}
|
||
|
||
/**
|
||
* Create a new uncolored tiling pattern.
|
||
*
|
||
* @param width the width of the pattern
|
||
* @param height the height of the pattern
|
||
* @param xstep the desired horizontal spacing between pattern cells.
|
||
* May be either positive or negative, but not zero.
|
||
* @param ystep the desired vertical spacing between pattern cells.
|
||
* May be either positive or negative, but not zero.
|
||
* @param color the default color. Can be <CODE>null</CODE>
|
||
* @return the <CODE>PdfPatternPainter</CODE> where the pattern will be created
|
||
*/
|
||
public PdfPatternPainter CreatePattern(float width, float height, float xstep, float ystep, Color color) {
|
||
CheckWriter();
|
||
if ( xstep == 0.0f || ystep == 0.0f )
|
||
throw new Exception("XStep or YStep can not be ZERO.");
|
||
PdfPatternPainter painter = new PdfPatternPainter(writer, color);
|
||
painter.Width = width;
|
||
painter.Height = height;
|
||
painter.XStep = xstep;
|
||
painter.YStep = ystep;
|
||
writer.AddSimplePattern(painter);
|
||
return painter;
|
||
}
|
||
|
||
/**
|
||
* Create a new uncolored tiling pattern.
|
||
* Variables xstep and ystep are set to the same values
|
||
* of width and height.
|
||
* @param width the width of the pattern
|
||
* @param height the height of the pattern
|
||
* @param color the default color. Can be <CODE>null</CODE>
|
||
* @return the <CODE>PdfPatternPainter</CODE> where the pattern will be created
|
||
*/
|
||
public PdfPatternPainter CreatePattern(float width, float height, Color color) {
|
||
return CreatePattern(width, height, width, height, color);
|
||
}
|
||
|
||
/**
|
||
* Creates a new template.
|
||
* <P>
|
||
* Creates a new template that is nothing more than a form XObject. This template can be included
|
||
* in this <CODE>PdfContentByte</CODE> or in another template. Templates are only written
|
||
* to the output when the document is closed permitting things like showing text in the first page
|
||
* that is only defined in the last page.
|
||
*
|
||
* @param width the bounding box width
|
||
* @param height the bounding box height
|
||
* @return the templated created
|
||
*/
|
||
public PdfTemplate CreateTemplate(float width, float height) {
|
||
return CreateTemplate(width, height, null);
|
||
}
|
||
|
||
internal PdfTemplate CreateTemplate(float width, float height, PdfName forcedName) {
|
||
CheckWriter();
|
||
PdfTemplate template = new PdfTemplate(writer);
|
||
template.Width = width;
|
||
template.Height = height;
|
||
writer.AddDirectTemplateSimple(template, forcedName);
|
||
return template;
|
||
}
|
||
|
||
/**
|
||
* Creates a new appearance to be used with form fields.
|
||
*
|
||
* @param width the bounding box width
|
||
* @param height the bounding box height
|
||
* @return the appearance created
|
||
*/
|
||
public PdfAppearance CreateAppearance(float width, float height) {
|
||
return CreateAppearance(width, height, null);
|
||
}
|
||
|
||
internal PdfAppearance CreateAppearance(float width, float height, PdfName forcedName) {
|
||
CheckWriter();
|
||
PdfAppearance template = new PdfAppearance(writer);
|
||
template.Width = width;
|
||
template.Height = height;
|
||
writer.AddDirectTemplateSimple(template, forcedName);
|
||
return template;
|
||
}
|
||
|
||
/**
|
||
* Adds a PostScript XObject to this content.
|
||
*
|
||
* @param psobject the object
|
||
*/
|
||
public void AddPSXObject(PdfPSXObject psobject) {
|
||
CheckWriter();
|
||
PdfName name = writer.AddDirectTemplateSimple(psobject, null);
|
||
PageResources prs = PageResources;
|
||
name = prs.AddXObject(name, psobject.IndirectReference);
|
||
content.Append(name.GetBytes()).Append(" Do").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Adds a template to this content.
|
||
*
|
||
* @param template the template
|
||
* @param a an element of the transformation matrix
|
||
* @param b an element of the transformation matrix
|
||
* @param c an element of the transformation matrix
|
||
* @param d an element of the transformation matrix
|
||
* @param e an element of the transformation matrix
|
||
* @param f an element of the transformation matrix
|
||
*/
|
||
public virtual void AddTemplate(PdfTemplate template, float a, float b, float c, float d, float e, float f) {
|
||
CheckWriter();
|
||
CheckNoPattern(template);
|
||
PdfName name = writer.AddDirectTemplateSimple(template, null);
|
||
PageResources prs = PageResources;
|
||
name = prs.AddXObject(name, template.IndirectReference);
|
||
content.Append("q ");
|
||
content.Append(a).Append(' ');
|
||
content.Append(b).Append(' ');
|
||
content.Append(c).Append(' ');
|
||
content.Append(d).Append(' ');
|
||
content.Append(e).Append(' ');
|
||
content.Append(f).Append(" cm ");
|
||
content.Append(name.GetBytes()).Append(" Do Q").Append_i(separator);
|
||
}
|
||
|
||
internal void AddTemplateReference(PdfIndirectReference template, PdfName name, float a, float b, float c, float d, float e, float f) {
|
||
CheckWriter();
|
||
PageResources prs = PageResources;
|
||
name = prs.AddXObject(name, template);
|
||
content.Append("q ");
|
||
content.Append(a).Append(' ');
|
||
content.Append(b).Append(' ');
|
||
content.Append(c).Append(' ');
|
||
content.Append(d).Append(' ');
|
||
content.Append(e).Append(' ');
|
||
content.Append(f).Append(" cm ");
|
||
content.Append(name.GetBytes()).Append(" Do Q").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Adds a template to this content.
|
||
*
|
||
* @param template the template
|
||
* @param x the x location of this template
|
||
* @param y the y location of this template
|
||
*/
|
||
public void AddTemplate(PdfTemplate template, float x, float y) {
|
||
AddTemplate(template, 1, 0, 0, 1, x, y);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for filling paths (device dependent colors!).
|
||
* <P>
|
||
* Sets the color space to <B>DeviceCMYK</B> (or the <B>DefaultCMYK</B> color space),
|
||
* and sets the color to use for filling paths.</P>
|
||
* <P>
|
||
* This method is described in the 'Portable Document Format Reference Manual version 1.3'
|
||
* section 8.5.2.1 (page 331).</P>
|
||
* <P>
|
||
* Following the PDF manual, each operand must be a number between 0 (no ink) and
|
||
* 1 (maximum ink). This method however accepts only ints between 0x00 and 0xFF.</P>
|
||
*
|
||
* @param cyan the intensity of cyan
|
||
* @param magenta the intensity of magenta
|
||
* @param yellow the intensity of yellow
|
||
* @param black the intensity of black
|
||
*/
|
||
|
||
public virtual void SetCMYKColorFill(int cyan, int magenta, int yellow, int black) {
|
||
content.Append((float)(cyan & 0xFF) / 0xFF);
|
||
content.Append(' ');
|
||
content.Append((float)(magenta & 0xFF) / 0xFF);
|
||
content.Append(' ');
|
||
content.Append((float)(yellow & 0xFF) / 0xFF);
|
||
content.Append(' ');
|
||
content.Append((float)(black & 0xFF) / 0xFF);
|
||
content.Append(" k").Append_i(separator);
|
||
}
|
||
/**
|
||
* Changes the current color for stroking paths (device dependent colors!).
|
||
* <P>
|
||
* Sets the color space to <B>DeviceCMYK</B> (or the <B>DefaultCMYK</B> color space),
|
||
* and sets the color to use for stroking paths.</P>
|
||
* <P>
|
||
* This method is described in the 'Portable Document Format Reference Manual version 1.3'
|
||
* section 8.5.2.1 (page 331).</P>
|
||
* Following the PDF manual, each operand must be a number between 0 (miniumum intensity) and
|
||
* 1 (maximum intensity). This method however accepts only ints between 0x00 and 0xFF.
|
||
*
|
||
* @param cyan the intensity of red
|
||
* @param magenta the intensity of green
|
||
* @param yellow the intensity of blue
|
||
* @param black the intensity of black
|
||
*/
|
||
|
||
public virtual void SetCMYKColorStroke(int cyan, int magenta, int yellow, int black) {
|
||
content.Append((float)(cyan & 0xFF) / 0xFF);
|
||
content.Append(' ');
|
||
content.Append((float)(magenta & 0xFF) / 0xFF);
|
||
content.Append(' ');
|
||
content.Append((float)(yellow & 0xFF) / 0xFF);
|
||
content.Append(' ');
|
||
content.Append((float)(black & 0xFF) / 0xFF);
|
||
content.Append(" K").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for filling paths (device dependent colors!).
|
||
* <P>
|
||
* Sets the color space to <B>DeviceRGB</B> (or the <B>DefaultRGB</B> color space),
|
||
* and sets the color to use for filling paths.</P>
|
||
* <P>
|
||
* This method is described in the 'Portable Document Format Reference Manual version 1.3'
|
||
* section 8.5.2.1 (page 331).</P>
|
||
* <P>
|
||
* Following the PDF manual, each operand must be a number between 0 (miniumum intensity) and
|
||
* 1 (maximum intensity). This method however accepts only ints between 0x00 and 0xFF.</P>
|
||
*
|
||
* @param red the intensity of red
|
||
* @param green the intensity of green
|
||
* @param blue the intensity of blue
|
||
*/
|
||
|
||
public virtual void SetRGBColorFill(int red, int green, int blue) {
|
||
HelperRGB((float)(red & 0xFF) / 0xFF, (float)(green & 0xFF) / 0xFF, (float)(blue & 0xFF) / 0xFF);
|
||
content.Append(" rg").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Changes the current color for stroking paths (device dependent colors!).
|
||
* <P>
|
||
* Sets the color space to <B>DeviceRGB</B> (or the <B>DefaultRGB</B> color space),
|
||
* and sets the color to use for stroking paths.</P>
|
||
* <P>
|
||
* This method is described in the 'Portable Document Format Reference Manual version 1.3'
|
||
* section 8.5.2.1 (page 331).</P>
|
||
* Following the PDF manual, each operand must be a number between 0 (miniumum intensity) and
|
||
* 1 (maximum intensity). This method however accepts only ints between 0x00 and 0xFF.
|
||
*
|
||
* @param red the intensity of red
|
||
* @param green the intensity of green
|
||
* @param blue the intensity of blue
|
||
*/
|
||
|
||
public virtual void SetRGBColorStroke(int red, int green, int blue) {
|
||
HelperRGB((float)(red & 0xFF) / 0xFF, (float)(green & 0xFF) / 0xFF, (float)(blue & 0xFF) / 0xFF);
|
||
content.Append(" RG").Append_i(separator);
|
||
}
|
||
|
||
/** Sets the stroke color. <CODE>color</CODE> can be an
|
||
* <CODE>ExtendedColor</CODE>.
|
||
* @param color the color
|
||
*/
|
||
public virtual void SetColorStroke(Color value) {
|
||
PdfXConformanceImp.CheckPDFXConformance(writer, PdfXConformanceImp.PDFXKEY_COLOR, value);
|
||
int type = ExtendedColor.GetType(value);
|
||
switch (type) {
|
||
case ExtendedColor.TYPE_GRAY: {
|
||
SetGrayStroke(((GrayColor)value).Gray);
|
||
break;
|
||
}
|
||
case ExtendedColor.TYPE_CMYK: {
|
||
CMYKColor cmyk = (CMYKColor)value;
|
||
SetCMYKColorStrokeF(cmyk.Cyan, cmyk.Magenta, cmyk.Yellow, cmyk.Black);
|
||
break;
|
||
}
|
||
case ExtendedColor.TYPE_SEPARATION: {
|
||
SpotColor spot = (SpotColor)value;
|
||
SetColorStroke(spot.PdfSpotColor, spot.Tint);
|
||
break;
|
||
}
|
||
case ExtendedColor.TYPE_PATTERN: {
|
||
PatternColor pat = (PatternColor)value;
|
||
SetPatternStroke(pat.Painter);
|
||
break;
|
||
}
|
||
case ExtendedColor.TYPE_SHADING: {
|
||
ShadingColor shading = (ShadingColor)value;
|
||
SetShadingStroke(shading.PdfShadingPattern);
|
||
break;
|
||
}
|
||
default:
|
||
SetRGBColorStroke(value.R, value.G, value.B);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/** Sets the fill color. <CODE>color</CODE> can be an
|
||
* <CODE>ExtendedColor</CODE>.
|
||
* @param color the color
|
||
*/
|
||
public virtual void SetColorFill(Color value) {
|
||
PdfXConformanceImp.CheckPDFXConformance(writer, PdfXConformanceImp.PDFXKEY_COLOR, value);
|
||
int type = ExtendedColor.GetType(value);
|
||
switch (type) {
|
||
case ExtendedColor.TYPE_GRAY: {
|
||
SetGrayFill(((GrayColor)value).Gray);
|
||
break;
|
||
}
|
||
case ExtendedColor.TYPE_CMYK: {
|
||
CMYKColor cmyk = (CMYKColor)value;
|
||
SetCMYKColorFillF(cmyk.Cyan, cmyk.Magenta, cmyk.Yellow, cmyk.Black);
|
||
break;
|
||
}
|
||
case ExtendedColor.TYPE_SEPARATION: {
|
||
SpotColor spot = (SpotColor)value;
|
||
SetColorFill(spot.PdfSpotColor, spot.Tint);
|
||
break;
|
||
}
|
||
case ExtendedColor.TYPE_PATTERN: {
|
||
PatternColor pat = (PatternColor)value;
|
||
SetPatternFill(pat.Painter);
|
||
break;
|
||
}
|
||
case ExtendedColor.TYPE_SHADING: {
|
||
ShadingColor shading = (ShadingColor)value;
|
||
SetShadingFill(shading.PdfShadingPattern);
|
||
break;
|
||
}
|
||
default:
|
||
SetRGBColorFill(value.R, value.G, value.B);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/** Sets the fill color to a spot color.
|
||
* @param sp the spot color
|
||
* @param tint the tint for the spot color. 0 is no color and 1
|
||
* is 100% color
|
||
*/
|
||
public virtual void SetColorFill(PdfSpotColor sp, float tint) {
|
||
CheckWriter();
|
||
state.colorDetails = writer.AddSimple(sp);
|
||
PageResources prs = PageResources;
|
||
PdfName name = state.colorDetails.ColorName;
|
||
name = prs.AddColor(name, state.colorDetails.IndirectReference);
|
||
content.Append(name.GetBytes()).Append(" cs ").Append(tint).Append(" scn").Append_i(separator);
|
||
}
|
||
|
||
/** Sets the stroke color to a spot color.
|
||
* @param sp the spot color
|
||
* @param tint the tint for the spot color. 0 is no color and 1
|
||
* is 100% color
|
||
*/
|
||
public virtual void SetColorStroke(PdfSpotColor sp, float tint) {
|
||
CheckWriter();
|
||
state.colorDetails = writer.AddSimple(sp);
|
||
PageResources prs = PageResources;
|
||
PdfName name = state.colorDetails.ColorName;
|
||
name = prs.AddColor(name, state.colorDetails.IndirectReference);
|
||
content.Append(name.GetBytes()).Append(" CS ").Append(tint).Append(" SCN").Append_i(separator);
|
||
}
|
||
|
||
/** Sets the fill color to a pattern. The pattern can be
|
||
* colored or uncolored.
|
||
* @param p the pattern
|
||
*/
|
||
public virtual void SetPatternFill(PdfPatternPainter p) {
|
||
if (p.IsStencil()) {
|
||
SetPatternFill(p, p.DefaultColor);
|
||
return;
|
||
}
|
||
CheckWriter();
|
||
PageResources prs = PageResources;
|
||
PdfName name = writer.AddSimplePattern(p);
|
||
name = prs.AddPattern(name, p.IndirectReference);
|
||
content.Append(PdfName.PATTERN.GetBytes()).Append(" cs ").Append(name.GetBytes()).Append(" scn").Append_i(separator);
|
||
}
|
||
|
||
/** Outputs the color values to the content.
|
||
* @param color The color
|
||
* @param tint the tint if it is a spot color, ignored otherwise
|
||
*/
|
||
internal void OutputColorNumbers(Color color, float tint) {
|
||
PdfXConformanceImp.CheckPDFXConformance(writer, PdfXConformanceImp.PDFXKEY_COLOR, color);
|
||
int type = ExtendedColor.GetType(color);
|
||
switch (type) {
|
||
case ExtendedColor.TYPE_RGB:
|
||
content.Append((float)(color.R) / 0xFF);
|
||
content.Append(' ');
|
||
content.Append((float)(color.G) / 0xFF);
|
||
content.Append(' ');
|
||
content.Append((float)(color.B) / 0xFF);
|
||
break;
|
||
case ExtendedColor.TYPE_GRAY:
|
||
content.Append(((GrayColor)color).Gray);
|
||
break;
|
||
case ExtendedColor.TYPE_CMYK: {
|
||
CMYKColor cmyk = (CMYKColor)color;
|
||
content.Append(cmyk.Cyan).Append(' ').Append(cmyk.Magenta);
|
||
content.Append(' ').Append(cmyk.Yellow).Append(' ').Append(cmyk.Black);
|
||
break;
|
||
}
|
||
case ExtendedColor.TYPE_SEPARATION:
|
||
content.Append(tint);
|
||
break;
|
||
default:
|
||
throw new Exception("Invalid color type.");
|
||
}
|
||
}
|
||
|
||
/** Sets the fill color to an uncolored pattern.
|
||
* @param p the pattern
|
||
* @param color the color of the pattern
|
||
*/
|
||
public virtual void SetPatternFill(PdfPatternPainter p, Color color) {
|
||
if (ExtendedColor.GetType(color) == ExtendedColor.TYPE_SEPARATION)
|
||
SetPatternFill(p, color, ((SpotColor)color).Tint);
|
||
else
|
||
SetPatternFill(p, color, 0);
|
||
}
|
||
|
||
/** Sets the fill color to an uncolored pattern.
|
||
* @param p the pattern
|
||
* @param color the color of the pattern
|
||
* @param tint the tint if the color is a spot color, ignored otherwise
|
||
*/
|
||
public virtual void SetPatternFill(PdfPatternPainter p, Color color, float tint) {
|
||
CheckWriter();
|
||
if (!p.IsStencil())
|
||
throw new Exception("An uncolored pattern was expected.");
|
||
PageResources prs = PageResources;
|
||
PdfName name = writer.AddSimplePattern(p);
|
||
name = prs.AddPattern(name, p.IndirectReference);
|
||
ColorDetails csDetail = writer.AddSimplePatternColorspace(color);
|
||
PdfName cName = prs.AddColor(csDetail.ColorName, csDetail.IndirectReference);
|
||
content.Append(cName.GetBytes()).Append(" cs").Append_i(separator);
|
||
OutputColorNumbers(color, tint);
|
||
content.Append(' ').Append(name.GetBytes()).Append(" scn").Append_i(separator);
|
||
}
|
||
|
||
/** Sets the stroke color to an uncolored pattern.
|
||
* @param p the pattern
|
||
* @param color the color of the pattern
|
||
*/
|
||
public virtual void SetPatternStroke(PdfPatternPainter p, Color color) {
|
||
if (ExtendedColor.GetType(color) == ExtendedColor.TYPE_SEPARATION)
|
||
SetPatternStroke(p, color, ((SpotColor)color).Tint);
|
||
else
|
||
SetPatternStroke(p, color, 0);
|
||
}
|
||
|
||
/** Sets the stroke color to an uncolored pattern.
|
||
* @param p the pattern
|
||
* @param color the color of the pattern
|
||
* @param tint the tint if the color is a spot color, ignored otherwise
|
||
*/
|
||
public virtual void SetPatternStroke(PdfPatternPainter p, Color color, float tint) {
|
||
CheckWriter();
|
||
if (!p.IsStencil())
|
||
throw new Exception("An uncolored pattern was expected.");
|
||
PageResources prs = PageResources;
|
||
PdfName name = writer.AddSimplePattern(p);
|
||
name = prs.AddPattern(name, p.IndirectReference);
|
||
ColorDetails csDetail = writer.AddSimplePatternColorspace(color);
|
||
PdfName cName = prs.AddColor(csDetail.ColorName, csDetail.IndirectReference);
|
||
content.Append(cName.GetBytes()).Append(" CS").Append_i(separator);
|
||
OutputColorNumbers(color, tint);
|
||
content.Append(' ').Append(name.GetBytes()).Append(" SCN").Append_i(separator);
|
||
}
|
||
|
||
/** Sets the stroke color to a pattern. The pattern can be
|
||
* colored or uncolored.
|
||
* @param p the pattern
|
||
*/
|
||
public virtual void SetPatternStroke(PdfPatternPainter p) {
|
||
if (p.IsStencil()) {
|
||
SetPatternStroke(p, p.DefaultColor);
|
||
return;
|
||
}
|
||
CheckWriter();
|
||
PageResources prs = PageResources;
|
||
PdfName name = writer.AddSimplePattern(p);
|
||
name = prs.AddPattern(name, p.IndirectReference);
|
||
content.Append(PdfName.PATTERN.GetBytes()).Append(" CS ").Append(name.GetBytes()).Append(" SCN").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Paints using a shading object.
|
||
* @param shading the shading object
|
||
*/
|
||
public virtual void PaintShading(PdfShading shading) {
|
||
writer.AddSimpleShading(shading);
|
||
PageResources prs = PageResources;
|
||
PdfName name = prs.AddShading(shading.ShadingName, shading.ShadingReference);
|
||
content.Append(name.GetBytes()).Append(" sh").Append_i(separator);
|
||
ColorDetails details = shading.ColorDetails;
|
||
if (details != null)
|
||
prs.AddColor(details.ColorName, details.IndirectReference);
|
||
}
|
||
|
||
/**
|
||
* Paints using a shading pattern.
|
||
* @param shading the shading pattern
|
||
*/
|
||
public virtual void PaintShading(PdfShadingPattern shading) {
|
||
PaintShading(shading.Shading);
|
||
}
|
||
|
||
/**
|
||
* Sets the shading fill pattern.
|
||
* @param shading the shading pattern
|
||
*/
|
||
public virtual void SetShadingFill(PdfShadingPattern shading) {
|
||
writer.AddSimpleShadingPattern(shading);
|
||
PageResources prs = PageResources;
|
||
PdfName name = prs.AddPattern(shading.PatternName, shading.PatternReference);
|
||
content.Append(PdfName.PATTERN.GetBytes()).Append(" cs ").Append(name.GetBytes()).Append(" scn").Append_i(separator);
|
||
ColorDetails details = shading.ColorDetails;
|
||
if (details != null)
|
||
prs.AddColor(details.ColorName, details.IndirectReference);
|
||
}
|
||
|
||
/**
|
||
* Sets the shading stroke pattern
|
||
* @param shading the shading pattern
|
||
*/
|
||
public virtual void SetShadingStroke(PdfShadingPattern shading) {
|
||
writer.AddSimpleShadingPattern(shading);
|
||
PageResources prs = PageResources;
|
||
PdfName name = prs.AddPattern(shading.PatternName, shading.PatternReference);
|
||
content.Append(PdfName.PATTERN.GetBytes()).Append(" CS ").Append(name.GetBytes()).Append(" SCN").Append_i(separator);
|
||
ColorDetails details = shading.ColorDetails;
|
||
if (details != null)
|
||
prs.AddColor(details.ColorName, details.IndirectReference);
|
||
}
|
||
|
||
/** Check if we have a valid PdfWriter.
|
||
*
|
||
*/
|
||
protected virtual void CheckWriter() {
|
||
if (writer == null)
|
||
throw new ArgumentNullException("The writer in PdfContentByte is null.");
|
||
}
|
||
|
||
/**
|
||
* Show an array of text.
|
||
* @param text array of text
|
||
*/
|
||
public void ShowText(PdfTextArray text) {
|
||
if (state.fontDetails == null)
|
||
throw new ArgumentNullException("Font and size must be set before writing any text");
|
||
content.Append('[');
|
||
ArrayList arrayList = text.ArrayList;
|
||
bool lastWasNumber = false;
|
||
for (int k = 0; k < arrayList.Count; ++k) {
|
||
Object obj = arrayList[k];
|
||
if (obj is string) {
|
||
ShowText2((string)obj);
|
||
lastWasNumber = false;
|
||
}
|
||
else {
|
||
if (lastWasNumber)
|
||
content.Append(' ');
|
||
else
|
||
lastWasNumber = true;
|
||
content.Append(((float)obj));
|
||
}
|
||
}
|
||
content.Append("]TJ").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Gets the <CODE>PdfWriter</CODE> in use by this object.
|
||
* @return the <CODE>PdfWriter</CODE> in use by this object
|
||
*/
|
||
public PdfWriter PdfWriter {
|
||
get {
|
||
return writer;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Gets the <CODE>PdfDocument</CODE> in use by this object.
|
||
* @return the <CODE>PdfDocument</CODE> in use by this object
|
||
*/
|
||
public PdfDocument PdfDocument {
|
||
get {
|
||
return pdf;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Implements a link to other part of the document. The jump will
|
||
* be made to a local destination with the same name, that must exist.
|
||
* @param name the name for this link
|
||
* @param llx the lower left x corner of the activation area
|
||
* @param lly the lower left y corner of the activation area
|
||
* @param urx the upper right x corner of the activation area
|
||
* @param ury the upper right y corner of the activation area
|
||
*/
|
||
public void LocalGoto(string name, float llx, float lly, float urx, float ury) {
|
||
pdf.LocalGoto(name, llx, lly, urx, ury);
|
||
}
|
||
|
||
/**
|
||
* The local destination to where a local goto with the same
|
||
* name will jump.
|
||
* @param name the name of this local destination
|
||
* @param destination the <CODE>PdfDestination</CODE> with the jump coordinates
|
||
* @return <CODE>true</CODE> if the local destination was added,
|
||
* <CODE>false</CODE> if a local destination with the same name
|
||
* already exists
|
||
*/
|
||
public bool LocalDestination(string name, PdfDestination destination) {
|
||
return pdf.LocalDestination(name, destination);
|
||
}
|
||
|
||
/**
|
||
* Gets a duplicate of this <CODE>PdfContentByte</CODE>. All
|
||
* the members are copied by reference but the buffer stays different.
|
||
*
|
||
* @return a copy of this <CODE>PdfContentByte</CODE>
|
||
*/
|
||
public virtual PdfContentByte Duplicate {
|
||
get {
|
||
return new PdfContentByte(writer);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Implements a link to another document.
|
||
* @param filename the filename for the remote document
|
||
* @param name the name to jump to
|
||
* @param llx the lower left x corner of the activation area
|
||
* @param lly the lower left y corner of the activation area
|
||
* @param urx the upper right x corner of the activation area
|
||
* @param ury the upper right y corner of the activation area
|
||
*/
|
||
public void RemoteGoto(string filename, string name, float llx, float lly, float urx, float ury) {
|
||
RemoteGoto(filename, name, llx, lly, urx, ury);
|
||
}
|
||
|
||
/**
|
||
* Implements a link to another document.
|
||
* @param filename the filename for the remote document
|
||
* @param page the page to jump to
|
||
* @param llx the lower left x corner of the activation area
|
||
* @param lly the lower left y corner of the activation area
|
||
* @param urx the upper right x corner of the activation area
|
||
* @param ury the upper right y corner of the activation area
|
||
*/
|
||
public void RemoteGoto(string filename, int page, float llx, float lly, float urx, float ury) {
|
||
pdf.RemoteGoto(filename, page, llx, lly, urx, ury);
|
||
}
|
||
/**
|
||
* Adds a round rectangle to the current path.
|
||
*
|
||
* @param x x-coordinate of the starting point
|
||
* @param y y-coordinate of the starting point
|
||
* @param w width
|
||
* @param h height
|
||
* @param r radius of the arc corner
|
||
*/
|
||
public void RoundRectangle(float x, float y, float w, float h, float r) {
|
||
if (w < 0) {
|
||
x += w;
|
||
w = -w;
|
||
}
|
||
if (h < 0) {
|
||
y += h;
|
||
h = -h;
|
||
}
|
||
if (r < 0)
|
||
r = -r;
|
||
float b = 0.4477f;
|
||
MoveTo(x + r, y);
|
||
LineTo(x + w - r, y);
|
||
CurveTo(x + w - r * b, y, x + w, y + r * b, x + w, y + r);
|
||
LineTo(x + w, y + h - r);
|
||
CurveTo(x + w, y + h - r * b, x + w - r * b, y + h, x + w - r, y + h);
|
||
LineTo(x + r, y + h);
|
||
CurveTo(x + r * b, y + h, x, y + h - r * b, x, y + h - r);
|
||
LineTo(x, y + r);
|
||
CurveTo(x, y + r * b, x + r * b, y, x + r, y);
|
||
}
|
||
|
||
/** Implements an action in an area.
|
||
* @param action the <CODE>PdfAction</CODE>
|
||
* @param llx the lower left x corner of the activation area
|
||
* @param lly the lower left y corner of the activation area
|
||
* @param urx the upper right x corner of the activation area
|
||
* @param ury the upper right y corner of the activation area
|
||
*/
|
||
public virtual void SetAction(PdfAction action, float llx, float lly, float urx, float ury) {
|
||
pdf.SetAction(action, llx, lly, urx, ury);
|
||
}
|
||
|
||
/** Outputs a <CODE>string</CODE> directly to the content.
|
||
* @param s the <CODE>string</CODE>
|
||
*/
|
||
public void SetLiteral(string s) {
|
||
content.Append(s);
|
||
}
|
||
|
||
/** Outputs a <CODE>char</CODE> directly to the content.
|
||
* @param c the <CODE>char</CODE>
|
||
*/
|
||
public void SetLiteral(char c) {
|
||
content.Append(c);
|
||
}
|
||
|
||
/** Outputs a <CODE>float</CODE> directly to the content.
|
||
* @param n the <CODE>float</CODE>
|
||
*/
|
||
public void SetLiteral(float n) {
|
||
content.Append(n);
|
||
}
|
||
|
||
/** Throws an error if it is a pattern.
|
||
* @param t the object to check
|
||
*/
|
||
internal void CheckNoPattern(PdfTemplate t) {
|
||
if (t.Type == PdfTemplate.TYPE_PATTERN)
|
||
throw new ArgumentException("Invalid use of a pattern. A template was expected.");
|
||
}
|
||
|
||
/**
|
||
* Draws a TextField.
|
||
*/
|
||
|
||
public void DrawRadioField(float llx, float lly, float urx, float ury, bool on) {
|
||
if (llx > urx) { float x = llx; llx = urx; urx = x; }
|
||
if (lly > ury) { float y = lly; lly = ury; ury = y; }
|
||
// silver circle
|
||
SetLineWidth(1);
|
||
SetLineCap(1);
|
||
SetColorStroke(new Color(0xC0, 0xC0, 0xC0));
|
||
Arc(llx + 1f, lly + 1f, urx - 1f, ury - 1f, 0f, 360f);
|
||
Stroke();
|
||
// gray circle-segment
|
||
SetLineWidth(1);
|
||
SetLineCap(1);
|
||
SetColorStroke(new Color(0xA0, 0xA0, 0xA0));
|
||
Arc(llx + 0.5f, lly + 0.5f, urx - 0.5f, ury - 0.5f, 45, 180);
|
||
Stroke();
|
||
// black circle-segment
|
||
SetLineWidth(1);
|
||
SetLineCap(1);
|
||
SetColorStroke(new Color(0x00, 0x00, 0x00));
|
||
Arc(llx + 1.5f, lly + 1.5f, urx - 1.5f, ury - 1.5f, 45, 180);
|
||
Stroke();
|
||
if (on) {
|
||
// gray circle
|
||
SetLineWidth(1);
|
||
SetLineCap(1);
|
||
SetColorFill(new Color(0x00, 0x00, 0x00));
|
||
Arc(llx + 4f, lly + 4f, urx - 4f, ury - 4f, 0, 360);
|
||
Fill();
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Draws a TextField.
|
||
*/
|
||
|
||
public void DrawTextField(float llx, float lly, float urx, float ury) {
|
||
if (llx > urx) { float x = llx; llx = urx; urx = x; }
|
||
if (lly > ury) { float y = lly; lly = ury; ury = y; }
|
||
// silver rectangle not filled
|
||
SetColorStroke(new Color(0xC0, 0xC0, 0xC0));
|
||
SetLineWidth(1);
|
||
SetLineCap(0);
|
||
Rectangle(llx, lly, urx - llx, ury - lly);
|
||
Stroke();
|
||
// white rectangle filled
|
||
SetLineWidth(1);
|
||
SetLineCap(0);
|
||
SetColorFill(new Color(0xFF, 0xFF, 0xFF));
|
||
Rectangle(llx + 0.5f, lly + 0.5f, urx - llx - 1f, ury -lly - 1f);
|
||
Fill();
|
||
// silver lines
|
||
SetColorStroke(new Color(0xC0, 0xC0, 0xC0));
|
||
SetLineWidth(1);
|
||
SetLineCap(0);
|
||
MoveTo(llx + 1f, lly + 1.5f);
|
||
LineTo(urx - 1.5f, lly + 1.5f);
|
||
LineTo(urx - 1.5f, ury - 1f);
|
||
Stroke();
|
||
// gray lines
|
||
SetColorStroke(new Color(0xA0, 0xA0, 0xA0));
|
||
SetLineWidth(1);
|
||
SetLineCap(0);
|
||
MoveTo(llx + 1f, lly + 1);
|
||
LineTo(llx + 1f, ury - 1f);
|
||
LineTo(urx - 1f, ury - 1f);
|
||
Stroke();
|
||
// black lines
|
||
SetColorStroke(new Color(0x00, 0x00, 0x00));
|
||
SetLineWidth(1);
|
||
SetLineCap(0);
|
||
MoveTo(llx + 2f, lly + 2f);
|
||
LineTo(llx + 2f, ury - 2f);
|
||
LineTo(urx - 2f, ury - 2f);
|
||
Stroke();
|
||
}
|
||
|
||
/**
|
||
* Draws a button.
|
||
*/
|
||
|
||
public void DrawButton(float llx, float lly, float urx, float ury, string text, BaseFont bf, float size) {
|
||
if (llx > urx) { float x = llx; llx = urx; urx = x; }
|
||
if (lly > ury) { float y = lly; lly = ury; ury = y; }
|
||
// black rectangle not filled
|
||
SetColorStroke(new Color(0x00, 0x00, 0x00));
|
||
SetLineWidth(1);
|
||
SetLineCap(0);
|
||
Rectangle(llx, lly, urx - llx, ury - lly);
|
||
Stroke();
|
||
// silver rectangle filled
|
||
SetLineWidth(1);
|
||
SetLineCap(0);
|
||
SetColorFill(new Color(0xC0, 0xC0, 0xC0));
|
||
Rectangle(llx + 0.5f, lly + 0.5f, urx - llx - 1f, ury -lly - 1f);
|
||
Fill();
|
||
// white lines
|
||
SetColorStroke(new Color(0xFF, 0xFF, 0xFF));
|
||
SetLineWidth(1);
|
||
SetLineCap(0);
|
||
MoveTo(llx + 1f, lly + 1f);
|
||
LineTo(llx + 1f, ury - 1f);
|
||
LineTo(urx - 1f, ury - 1f);
|
||
Stroke();
|
||
// dark grey lines
|
||
SetColorStroke(new Color(0xA0, 0xA0, 0xA0));
|
||
SetLineWidth(1);
|
||
SetLineCap(0);
|
||
MoveTo(llx + 1f, lly + 1f);
|
||
LineTo(urx - 1f, lly + 1f);
|
||
LineTo(urx - 1f, ury - 1f);
|
||
Stroke();
|
||
// text
|
||
ResetRGBColorFill();
|
||
BeginText();
|
||
SetFontAndSize(bf, size);
|
||
ShowTextAligned(PdfContentByte.ALIGN_CENTER, text, llx + (urx - llx) / 2, lly + (ury - lly - size) / 2, 0);
|
||
EndText();
|
||
}
|
||
|
||
internal virtual PageResources PageResources {
|
||
get {
|
||
return pdf.PageResources;
|
||
}
|
||
}
|
||
|
||
/** Sets the graphic state
|
||
* @param gstate the graphic state
|
||
*/
|
||
public void SetGState(PdfGState gstate) {
|
||
PdfObject[] obj = writer.AddSimpleExtGState(gstate);
|
||
PageResources prs = PageResources;
|
||
PdfName name = prs.AddExtGState((PdfName)obj[0], (PdfIndirectReference)obj[1]);
|
||
content.Append(name.GetBytes()).Append(" gs").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Begins a graphic block whose visibility is controled by the <CODE>layer</CODE>.
|
||
* Blocks can be nested. Each block must be terminated by an {@link #endLayer()}.<p>
|
||
* Note that nested layers with {@link PdfLayer#addChild(PdfLayer)} only require a single
|
||
* call to this method and a single call to {@link #endLayer()}; all the nesting control
|
||
* is built in.
|
||
* @param layer the layer
|
||
*/
|
||
public void BeginLayer(IPdfOCG layer) {
|
||
if ((layer is PdfLayer) && ((PdfLayer)layer).Title != null)
|
||
throw new ArgumentException("A title is not a layer");
|
||
if (layerDepth == null)
|
||
layerDepth = new ArrayList();
|
||
if (layer is PdfLayerMembership) {
|
||
layerDepth.Add(1);
|
||
BeginLayer2(layer);
|
||
return;
|
||
}
|
||
int n = 0;
|
||
PdfLayer la = (PdfLayer)layer;
|
||
while (la != null) {
|
||
if (la.Title == null) {
|
||
BeginLayer2(la);
|
||
++n;
|
||
}
|
||
la = la.Parent;
|
||
}
|
||
layerDepth.Add(n);
|
||
}
|
||
|
||
private void BeginLayer2(IPdfOCG layer) {
|
||
PdfName name = (PdfName)writer.AddSimpleProperty(layer, layer.Ref)[0];
|
||
PageResources prs = PageResources;
|
||
name = prs.AddProperty(name, layer.Ref);
|
||
content.Append("/OC ").Append(name.GetBytes()).Append(" BDC").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Ends a layer controled graphic block. It will end the most recent open block.
|
||
*/
|
||
public void EndLayer() {
|
||
int n = 1;
|
||
if (layerDepth != null && layerDepth.Count > 0) {
|
||
n = (int)layerDepth[layerDepth.Count - 1];
|
||
layerDepth.RemoveAt(layerDepth.Count - 1);
|
||
} else {
|
||
throw new IllegalPdfSyntaxException("Unbalanced layer operators." );
|
||
}
|
||
while (n-- > 0)
|
||
content.Append("EMC").Append_i(separator);
|
||
}
|
||
|
||
internal virtual void AddAnnotation(PdfAnnotation annot) {
|
||
writer.AddAnnotation(annot);
|
||
}
|
||
|
||
/**
|
||
* Sets the default colorspace.
|
||
* @param name the name of the colorspace. It can be <CODE>PdfName.DEFAULTGRAY</CODE>, <CODE>PdfName.DEFAULTRGB</CODE>
|
||
* or <CODE>PdfName.DEFAULTCMYK</CODE>
|
||
* @param obj the colorspace. A <CODE>null</CODE> or <CODE>PdfNull</CODE> removes any colorspace with the same name
|
||
*/
|
||
public virtual void SetDefaultColorspace(PdfName name, PdfObject obj) {
|
||
PageResources prs = PageResources;
|
||
prs.AddDefaultColor(name, obj);
|
||
}
|
||
|
||
public void Transform(System.Drawing.Drawing2D.Matrix tx) {
|
||
float[] c = tx.Elements;
|
||
ConcatCTM(c[0], c[1], c[2], c[3], c[4], c[5]);
|
||
}
|
||
|
||
/**
|
||
* Begins a marked content sequence. This sequence will be tagged with the structure <CODE>struc</CODE>.
|
||
* The same structure can be used several times to connect text that belongs to the same logical segment
|
||
* but is in a different location, like the same paragraph crossing to another page, for example.
|
||
* @param struc the tagging structure
|
||
*/
|
||
public void BeginMarkedContentSequence(PdfStructureElement struc) {
|
||
PdfObject obj = struc.Get(PdfName.K);
|
||
int mark = pdf.GetMarkPoint();
|
||
if (obj != null) {
|
||
PdfArray ar = null;
|
||
if (obj.IsNumber()) {
|
||
ar = new PdfArray();
|
||
ar.Add(obj);
|
||
struc.Put(PdfName.K, ar);
|
||
}
|
||
else if (obj.IsArray()) {
|
||
ar = (PdfArray)obj;
|
||
if (!ar[0].IsNumber())
|
||
throw new ArgumentException("The structure has kids.");
|
||
}
|
||
else
|
||
throw new ArgumentException("Unknown object at /K " + obj.GetType().ToString());
|
||
PdfDictionary dic = new PdfDictionary(PdfName.MCR);
|
||
dic.Put(PdfName.PG, writer.CurrentPage);
|
||
dic.Put(PdfName.MCID, new PdfNumber(mark));
|
||
ar.Add(dic);
|
||
struc.SetPageMark(writer.PageNumber - 1, -1);
|
||
}
|
||
else {
|
||
struc.SetPageMark(writer.PageNumber - 1, mark);
|
||
struc.Put(PdfName.PG, writer.CurrentPage);
|
||
}
|
||
pdf.IncMarkPoint();
|
||
mcDepth++;
|
||
content.Append(struc.Get(PdfName.S).GetBytes()).Append(" <</MCID ").Append(mark).Append(">> BDC").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Ends a marked content sequence
|
||
*/
|
||
public void EndMarkedContentSequence() {
|
||
if (mcDepth == 0) {
|
||
throw new IllegalPdfSyntaxException("Unbalanced begin/end marked content operators." );
|
||
}
|
||
--mcDepth;
|
||
content.Append("EMC").Append_i(separator);
|
||
}
|
||
|
||
/**
|
||
* Begins a marked content sequence. If property is <CODE>null</CODE> the mark will be of the type
|
||
* <CODE>BMC</CODE> otherwise it will be <CODE>BDC</CODE>.
|
||
* @param tag the tag
|
||
* @param property the property
|
||
* @param inline <CODE>true</CODE> to include the property in the content or <CODE>false</CODE>
|
||
* to include the property in the resource dictionary with the possibility of reusing
|
||
*/
|
||
public void BeginMarkedContentSequence(PdfName tag, PdfDictionary property, bool inline) {
|
||
if (property == null) {
|
||
content.Append(tag.GetBytes()).Append(" BMC").Append_i(separator);
|
||
return;
|
||
}
|
||
content.Append(tag.GetBytes()).Append(' ');
|
||
if (inline)
|
||
property.ToPdf(writer, content);
|
||
else {
|
||
PdfObject[] objs;
|
||
if (writer.PropertyExists(property))
|
||
objs = writer.AddSimpleProperty(property, null);
|
||
else
|
||
objs = writer.AddSimpleProperty(property, writer.PdfIndirectReference);
|
||
PdfName name = (PdfName)objs[0];
|
||
PageResources prs = PageResources;
|
||
name = prs.AddProperty(name, (PdfIndirectReference)objs[1]);
|
||
content.Append(name.GetBytes());
|
||
}
|
||
content.Append(" BDC").Append_i(separator);
|
||
++mcDepth;
|
||
}
|
||
|
||
/**
|
||
* This is just a shorthand to <CODE>beginMarkedContentSequence(tag, null, false)</CODE>.
|
||
* @param tag the tag
|
||
*/
|
||
public void BeginMarkedContentSequence(PdfName tag) {
|
||
BeginMarkedContentSequence(tag, null, false);
|
||
}
|
||
|
||
/**
|
||
* Checks for any dangling state: Mismatched save/restore state, begin/end text,
|
||
* begin/end layer, or begin/end marked content sequence.
|
||
* If found, this function will throw. This function is called automatically
|
||
* during a reset() (from Document.newPage() for example), and before writing
|
||
* itself out in toPdf().
|
||
* One possible cause: not calling myPdfGraphics2D.dispose() will leave dangling
|
||
* saveState() calls.
|
||
* @since 2.1.6
|
||
* @throws IllegalPdfSyntaxException (a runtime exception)
|
||
*/
|
||
public void SanityCheck() {
|
||
if (mcDepth != 0) {
|
||
throw new IllegalPdfSyntaxException("Unbalanced marked content operators." );
|
||
}
|
||
if (inText) {
|
||
throw new IllegalPdfSyntaxException("Unbalanced begin/end text operators." );
|
||
}
|
||
if (layerDepth != null && layerDepth.Count > 0) {
|
||
throw new IllegalPdfSyntaxException("Unbalanced layer operators." );
|
||
}
|
||
if (stateList.Count > 0) {
|
||
throw new IllegalPdfSyntaxException("Unbalanced save/restore state operators." );
|
||
}
|
||
}
|
||
}
|
||
} |