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/*
* $Id: PdfContentByte.java 3912 2009-04-26 08:38:15Z blowagie $
*
* 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/
*/
package com.aowagie.text.pdf;
import harmony.java.awt.Color;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import com.aowagie.text.Annotation;
import com.aowagie.text.DocumentException;
import com.aowagie.text.Element;
import com.aowagie.text.ExceptionConverter;
import com.aowagie.text.Image;
import com.aowagie.text.ImgJBIG2;
import com.aowagie.text.Rectangle;
import com.aowagie.text.exceptions.IllegalPdfSyntaxException;
import com.aowagie.text.pdf.internal.PdfAnnotationsImp;
import com.aowagie.text.pdf.internal.PdfXConformanceImp;
/**
* PdfContentByte 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
*/
static class GraphicState {
/** This is the font in use */
FontDetails fontDetails;
/** This is the color in use */
private ColorDetails colorDetails;
/** This is the font size in use */
float size;
/** The x position of the text line matrix. */
private float xTLM = 0;
/** The y position of the text line matrix. */
private float yTLM = 0;
/** The current text leading. */
private float leading = 0;
/** The current horizontal scaling */
private float scale = 100;
/** The current character spacing */
float charSpace = 0;
/** The current word spacing */
private float wordSpace = 0;
GraphicState() {
}
GraphicState(final GraphicState cp) {
this.fontDetails = cp.fontDetails;
this.colorDetails = cp.colorDetails;
this.size = cp.size;
this.xTLM = cp.xTLM;
this.yTLM = cp.yTLM;
this.leading = cp.leading;
this.scale = cp.scale;
this.charSpace = cp.charSpace;
this.wordSpace = cp.wordSpace;
}
}
/** The alignment is center */
static final int ALIGN_CENTER = Element.ALIGN_CENTER;
/** The alignment is left */
static final int ALIGN_LEFT = Element.ALIGN_LEFT;
/** The alignment is right */
private static final int ALIGN_RIGHT = Element.ALIGN_RIGHT;
/** A possible line cap value */
private static final int LINE_CAP_BUTT = 0;
/** A possible line join value */
private static final int LINE_JOIN_MITER = 0;
/** A possible text rendering value */
static final int TEXT_RENDER_MODE_FILL = 0;
/** A possible text rendering value */
static final int TEXT_RENDER_MODE_STROKE = 1;
/** A possible text rendering value */
static final int TEXT_RENDER_MODE_FILL_STROKE = 2;
private static final 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 state */
private final ArrayList stateList = new ArrayList();
/** The list were we save/restore the layer depth */
private ArrayList layerDepth;
/** The separator between commands.
*/
protected int separator = '\n';
private int mcDepth = 0;
private boolean inText = false;
private static HashMap abrev = new LinkedHashMap();
static {
abrev.put(PdfName.BITSPERCOMPONENT, "/BPC "); //$NON-NLS-1$
abrev.put(PdfName.COLORSPACE, "/CS "); //$NON-NLS-1$
abrev.put(PdfName.DECODE, "/D "); //$NON-NLS-1$
abrev.put(PdfName.DECODEPARMS, "/DP "); //$NON-NLS-1$
abrev.put(PdfName.FILTER, "/F "); //$NON-NLS-1$
abrev.put(PdfName.HEIGHT, "/H "); //$NON-NLS-1$
abrev.put(PdfName.IMAGEMASK, "/IM "); //$NON-NLS-1$
abrev.put(PdfName.INTENT, "/Intent "); //$NON-NLS-1$
abrev.put(PdfName.INTERPOLATE, "/I "); //$NON-NLS-1$
abrev.put(PdfName.WIDTH, "/W "); //$NON-NLS-1$
}
// constructors
/**
* Constructs a new PdfContentByte-object.
*
* @param wr the writer associated to this content
*/
PdfContentByte(final PdfWriter wr) {
if (wr != null) {
this.writer = wr;
this.pdf = this.writer.getPdfDocument();
}
}
// methods to get the content of this object
/**
* Returns the String representation of this PdfContentByte-object.
*
* @return a String
*/
@Override
public String toString() {
return this.content.toString();
}
/**
* Gets the internal buffer.
* @return the internal buffer
*/
public ByteBuffer getInternalBuffer() {
return this.content;
}
/** Returns the PDF representation of this PdfContentByte-object.
*
* @param writer the PdfWriter
* @return a byte array with the representation
*/
byte[] toPdf(final PdfWriter writer) {
sanityCheck();
return this.content.toByteArray();
}
// methods to add graphical content
/**
* Adds the content of another PdfContent-object to this object.
*
* @param other another PdfByteContent-object
*/
void add(final PdfContentByte other) {
if (other.writer != null && this.writer != other.writer) {
throw new RuntimeException("Inconsistent writers. Are you mixing two documents?"); //$NON-NLS-1$
}
this.content.append(other.content);
}
/**
* Gets the x position of the text line matrix.
*
* @return the x position of the text line matrix
*/
public float getXTLM() {
return this.state.xTLM;
}
/**
* Gets the y position of the text line matrix.
*
* @return the y position of the text line matrix
*/
public float getYTLM() {
return this.state.yTLM;
}
/**
* Gets the current text leading.
*
* @return the current text leading
*/
public float getLeading() {
return this.state.leading;
}
/**
* Gets the current character spacing.
*
* @return the current character spacing
*/
public float getCharacterSpacing() {
return this.state.charSpace;
}
/**
* Gets the current word spacing.
*
* @return the current word spacing
*/
public float getWordSpacing() {
return this.state.wordSpace;
}
/**
* Gets the current character spacing.
*
* @return the current character spacing
*/
public float getHorizontalScaling() {
return this.state.scale;
}
/**
* Changes the Flatness.
*
* Flatness sets the maximum permitted distance in device pixels between the
* mathematically correct path and an approximation constructed from straight line segments.
*
* @param flatness a value
*/
public void setFlatness(final float flatness) {
if (flatness >= 0 && flatness <= 100) {
this.content.append(flatness).append(" i").append_i(this.separator); //$NON-NLS-1$
}
}
/**
* Changes the Line cap style.
*
* The line cap style specifies the shape to be used at the end of open subpaths
* when they are stroked.
* Allowed values are LINE_CAP_BUTT, LINE_CAP_ROUND and LINE_CAP_PROJECTING_SQUARE.
*
* @param style a value
*/
public void setLineCap(final int style) {
if (style >= 0 && style <= 2) {
this.content.append(style).append(" J").append_i(this.separator); //$NON-NLS-1$
}
}
/**
* Changes the value of the line dash pattern.
*
* The line dash pattern controls the pattern of dashes and gaps used to stroke paths.
* It is specified by an array and a phase. The array specifies the length
* of the alternating dashes and gaps. The phase specifies the distance into the dash
* pattern to start the dash.
*
* @param phase the value of the phase
*/
public void setLineDash(final float phase) {
this.content.append("[] ").append(phase).append(" d").append_i(this.separator); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* Changes the value of the line dash pattern.
*
* The line dash pattern controls the pattern of dashes and gaps used to stroke paths.
* It is specified by an array and a phase. The array specifies the length
* of the alternating dashes and gaps. The phase specifies the distance into the dash
* pattern to start the dash.
*
* @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(final float unitsOn, final float phase) {
this.content.append("[").append(unitsOn).append("] ").append(phase).append(" d").append_i(this.separator); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
/**
* Changes the value of the line dash pattern.
*
* The line dash pattern controls the pattern of dashes and gaps used to stroke paths.
* It is specified by an array and a phase. The array specifies the length
* of the alternating dashes and gaps. The phase specifies the distance into the dash
* pattern to start the dash.
*
* @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(final float unitsOn, final float unitsOff, final float phase) {
this.content.append("[").append(unitsOn).append(' ').append(unitsOff).append("] ").append(phase).append(" d").append_i(this.separator); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
/**
* Changes the Line join style.
*
* The line join style specifies the shape to be used at the corners of paths
* that are stroked.
* Allowed values are LINE_JOIN_MITER (Miter joins), LINE_JOIN_ROUND (Round joins) and LINE_JOIN_BEVEL (Bevel joins).
*
* @param style a value
*/
public void setLineJoin(final int style) {
if (style >= 0 && style <= 2) {
this.content.append(style).append(" j").append_i(this.separator); //$NON-NLS-1$
}
}
/**
* Changes the line width.
*
* The line width specifies the thickness of the line used to stroke a path and is measured
* in user space units.
*
* @param w a width
*/
public void setLineWidth(final float w) {
this.content.append(w).append(" w").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the Miter limit.
*
* 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.
*
* @param miterLimit a miter limit
*/
public void setMiterLimit(final float miterLimit) {
if (miterLimit > 1) {
this.content.append(miterLimit).append(" M").append_i(this.separator); //$NON-NLS-1$
}
}
/**
* 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() {
this.content.append("W").append_i(this.separator); //$NON-NLS-1$
}
/**
* 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() {
this.content.append("W*").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the currentgray tint for filling paths (device dependent colors!).
*
* Sets the color space to DeviceGray (or the DefaultGray color space),
* and sets the gray tint to use for filling paths.
*
* @param gray a value between 0 (black) and 1 (white)
*/
public void setGrayFill(final float gray) {
this.content.append(gray).append(" g").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current gray tint for filling paths to black.
*/
public void resetGrayFill() {
this.content.append("0 g").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the currentgray tint for stroking paths (device dependent colors!).
*
* Sets the color space to DeviceGray (or the DefaultGray color space),
* and sets the gray tint to use for stroking paths.
*
* @param gray a value between 0 (black) and 1 (white)
*/
public void setGrayStroke(final float gray) {
this.content.append(gray).append(" G").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current gray tint for stroking paths to black.
*/
public void resetGrayStroke() {
this.content.append("0 G").append_i(this.separator); //$NON-NLS-1$
}
/**
* 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(this.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;
}
this.content.append(red).append(' ').append(green).append(' ').append(blue);
}
/**
* Changes the current color for filling paths (device dependent colors!).
*
* Sets the color space to DeviceRGB (or the DefaultRGB color space),
* and sets the color to use for filling paths.
*
* Following the PDF manual, each operand must be a number between 0 (minimum 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 void setRGBColorFillF(final float red, final float green, final float blue) {
HelperRGB(red, green, blue);
this.content.append(" rg").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current color for filling paths to black.
*/
public void resetRGBColorFill() {
this.content.append("0 g").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current color for stroking paths (device dependent colors!).
*
* Sets the color space to DeviceRGB (or the DefaultRGB color space),
* and sets the color to use for stroking paths.
*
* 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 void setRGBColorStrokeF(final float red, final float green, final float blue) {
HelperRGB(red, green, blue);
this.content.append(" RG").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current color for stroking paths to black.
*
*/
public void resetRGBColorStroke() {
this.content.append("0 G").append_i(this.separator); //$NON-NLS-1$
}
/**
* 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;
}
this.content.append(cyan).append(' ').append(magenta).append(' ').append(yellow).append(' ').append(black);
}
/**
* Changes the current color for filling paths (device dependent colors!).
*
* Sets the color space to DeviceCMYK (or the DefaultCMYK color space),
* and sets the color to use for filling paths.
*
* Following the PDF manual, each operand must be a number between 0 (no ink) and
* 1 (maximum ink).
*
* @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 void setCMYKColorFillF(final float cyan, final float magenta, final float yellow, final float black) {
HelperCMYK(cyan, magenta, yellow, black);
this.content.append(" k").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current color for filling paths to black.
*
*/
public void resetCMYKColorFill() {
this.content.append("0 0 0 1 k").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current color for stroking paths (device dependent colors!).
*
* Sets the color space to DeviceCMYK (or the DefaultCMYK color space),
* and sets the color to use for stroking paths.
*
* 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 void setCMYKColorStrokeF(final float cyan, final float magenta, final float yellow, final float black) {
HelperCMYK(cyan, magenta, yellow, black);
this.content.append(" K").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current color for stroking paths to black.
*
*/
public void resetCMYKColorStroke() {
this.content.append("0 0 0 1 K").append_i(this.separator); //$NON-NLS-1$
}
/**
* Move the current point (x, y), omitting any connecting line segment.
*
* @param x new x-coordinate
* @param y new y-coordinate
*/
public void moveTo(final float x, final float y) {
this.content.append(x).append(' ').append(y).append(" m").append_i(this.separator); //$NON-NLS-1$
}
/**
* Appends a straight line segment from the current point (x, y). The new current
* point is (x, y).
*
* @param x new x-coordinate
* @param y new y-coordinate
*/
public void lineTo(final float x, final float y) {
this.content.append(x).append(' ').append(y).append(" l").append_i(this.separator); //$NON-NLS-1$
}
/**
* Appends a Bêzier 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-coordinate of the ending point (= new current point)
* @param y3 y-coordinate of the ending point (= new current point)
*/
public void curveTo(final float x1, final float y1, final float x2, final float y2, final float x3, final float y3) {
this.content.append(x1).append(' ').append(y1).append(' ').append(x2).append(' ').append(y2).append(' ').append(x3).append(' ').append(y3).append(" c").append_i(this.separator); //$NON-NLS-1$
}
/**
* Appends a Bêzier 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-coordinate of the ending point (= new current point)
* @param y3 y-coordinate of the ending point (= new current point)
*/
void curveTo(final float x2, final float y2, final float x3, final float y3) {
this.content.append(x2).append(' ').append(y2).append(' ').append(x3).append(' ').append(y3).append(" v").append_i(this.separator); //$NON-NLS-1$
}
/**
* 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(final float x, final float y, final float w, final float h) {
this.content.append(x).append(' ').append(y).append(' ').append(w).append(' ').append(h).append(" re").append_i(this.separator); //$NON-NLS-1$
}
private boolean compareColors(final Color c1, final Color c2) {
if (c1 == null && c2 == null) {
return true;
}
if (c1 == null || c2 == null) {
return false;
}
if (c1 instanceof ExtendedColor) {
return c1.equals(c2);
}
return c2.equals(c1);
}
/**
* Adds a variable width border to the current path.
* Only use if {@link com.aowagie.text.Rectangle#isUseVariableBorders() Rectangle.isUseVariableBorders}
* = true.
* @param rect a Rectangle
*/
private void variableRectangle(final Rectangle rect) {
final float t = rect.getTop();
final float b = rect.getBottom();
final float r = rect.getRight();
final float l = rect.getLeft();
final float wt = rect.getBorderWidthTop();
final float wb = rect.getBorderWidthBottom();
final float wr = rect.getBorderWidthRight();
final float wl = rect.getBorderWidthLeft();
final Color ct = rect.getBorderColorTop();
final Color cb = rect.getBorderColorBottom();
final Color cr = rect.getBorderColorRight();
final Color cl = rect.getBorderColorLeft();
saveState();
setLineCap(PdfContentByte.LINE_CAP_BUTT);
setLineJoin(PdfContentByte.LINE_JOIN_MITER);
float clw = 0;
boolean cdef = false;
Color ccol = null;
boolean 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;
}
final boolean bt = compareColors(ct, cr);
final boolean 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);
}
}
final boolean bt = compareColors(ct, cl);
final boolean 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 Rectangle
*/
public void rectangle(final Rectangle rectangle) {
// the coordinates of the border are retrieved
final float x1 = rectangle.getLeft();
final float y1 = rectangle.getBottom();
final float x2 = rectangle.getRight();
final float y2 = rectangle.getTop();
// the backgroundcolor is set
final Color background = rectangle.getBackgroundColor();
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.isUseVariableBorders()) {
variableRectangle(rectangle);
}
else {
// the width is set to the width of the element
if (rectangle.getBorderWidth() != Rectangle.UNDEFINED) {
setLineWidth(rectangle.getBorderWidth());
}
// the color is set to the color of the element
final Color color = rectangle.getBorderColor();
if (color != null) {
setColorStroke(color);
}
// if the box is a rectangle, it is added as a rectangle
if (rectangle.hasBorder(Rectangle.BOX)) {
rectangle(x1, y1, x2 - x1, y2 - y1);
}
// if the border isn't a rectangle, the different sides are added apart
else {
if (rectangle.hasBorder(Rectangle.RIGHT)) {
moveTo(x2, y1);
lineTo(x2, y2);
}
if (rectangle.hasBorder(Rectangle.LEFT)) {
moveTo(x1, y1);
lineTo(x1, y2);
}
if (rectangle.hasBorder(Rectangle.BOTTOM)) {
moveTo(x1, y1);
lineTo(x2, y1);
}
if (rectangle.hasBorder(Rectangle.TOP)) {
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() {
this.content.append("h").append_i(this.separator); //$NON-NLS-1$
}
/**
* Ends the path without filling or stroking it.
*/
public void newPath() {
this.content.append("n").append_i(this.separator); //$NON-NLS-1$
}
/**
* Strokes the path.
*/
public void stroke() {
this.content.append("S").append_i(this.separator); //$NON-NLS-1$
}
/**
* Closes the path and strokes it.
*/
public void closePathStroke() {
this.content.append("s").append_i(this.separator); //$NON-NLS-1$
}
/**
* Fills the path, using the non-zero winding number rule to determine the region to fill.
*/
public void fill() {
this.content.append("f").append_i(this.separator); //$NON-NLS-1$
}
/**
* Fills the path, using the even-odd rule to determine the region to fill.
*/
public void eoFill() {
this.content.append("f*").append_i(this.separator); //$NON-NLS-1$
}
/**
* Closes the path, fills it using the non-zero winding number rule to determine the region to fill and strokes it.
*/
public void closePathFillStroke() {
this.content.append("b").append_i(this.separator); //$NON-NLS-1$
}
/**
* Closes the path, fills it using the even-odd rule to determine the region to fill and strokes it.
*/
public void closePathEoFillStroke() {
this.content.append("b*").append_i(this.separator); //$NON-NLS-1$
}
/**
* Adds an Image to the page. The Image must have
* absolute positioning.
* @param image the Image object
* @throws DocumentException if the Image does not have absolute positioning
*/
public void addImage(final Image image) throws DocumentException {
addImage(image, false);
}
/**
* Adds an Image to the page. The Image must have
* absolute positioning. The image can be placed inline.
* @param image the Image object
* @param inlineImage true to place this image inline, false otherwise
* @throws DocumentException if the Image does not have absolute positioning
*/
private void addImage(final Image image, final boolean inlineImage) throws DocumentException {
if (!image.hasAbsoluteY()) {
throw new DocumentException("The image must have absolute positioning."); //$NON-NLS-1$
}
final float matrix[] = image.matrix();
matrix[Image.CX] = image.getAbsoluteX() - matrix[Image.CX];
matrix[Image.CY] = image.getAbsoluteY() - matrix[Image.CY];
addImage(image, matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5], inlineImage);
}
/**
* Adds an Image to the page. The positioning of the Image
* is done with the transformation matrix. To position an image at (x,y)
* use addImage(image, image_width, 0, 0, image_height, x, y).
* @param image the Image 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 void addImage(final Image image, final float a, final float b, final float c, final float d, final float e, final float f) throws DocumentException {
addImage(image, a, b, c, d, e, f, false);
}
/**
* Adds an Image to the page. The positioning of the Image
* is done with the transformation matrix. To position an image at (x,y)
* use addImage(image, image_width, 0, 0, image_height, x, y). The image can be placed inline.
* @param image the Image 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 true to place this image inline, false otherwise
* @throws DocumentException on error
*/
public void addImage(final Image image, final float a, final float b, final float c, final float d, final float e, final float f, final boolean inlineImage) throws DocumentException {
try {
if (image.getLayer() != null) {
beginLayer(image.getLayer());
}
if (image.isImgTemplate()) {
this.writer.addDirectImageSimple(image);
final PdfTemplate template = image.getTemplateData();
final float w = template.getWidth();
final float h = template.getHeight();
addTemplate(template, a / w, b / w, c / h, d / h, e, f);
}
else {
this.content.append("q "); //$NON-NLS-1$
this.content.append(a).append(' ');
this.content.append(b).append(' ');
this.content.append(c).append(' ');
this.content.append(d).append(' ');
this.content.append(e).append(' ');
this.content.append(f).append(" cm"); //$NON-NLS-1$
if (inlineImage) {
this.content.append("\nBI\n"); //$NON-NLS-1$
final PdfImage pimage = new PdfImage(image, "", null); //$NON-NLS-1$
if (image instanceof ImgJBIG2) {
final byte[] globals = ((ImgJBIG2)image).getGlobalBytes();
if (globals != null) {
final PdfDictionary decodeparms = new PdfDictionary();
decodeparms.put(PdfName.JBIG2GLOBALS, this.writer.getReferenceJBIG2Globals(globals));
pimage.put(PdfName.DECODEPARMS, decodeparms);
}
}
for (final Object element : pimage.getKeys()) {
final PdfName key = (PdfName)element;
PdfObject value = pimage.get(key);
final String s = abrev.get(key);
if (s == null) {
continue;
}
this.content.append(s);
boolean check = true;
if (key.equals(PdfName.COLORSPACE) && value.isArray()) {
final PdfArray ar = (PdfArray)value;
if (ar.size() == 4
&& PdfName.INDEXED.equals(ar.getAsName(0))
&& ar.getPdfObject(1).isName()
&& ar.getPdfObject(2).isNumber()
&& ar.getPdfObject(3).isString()
) {
check = false;
}
}
if (check && key.equals(PdfName.COLORSPACE) && !value.isName()) {
final PdfName cs = this.writer.getColorspaceName();
final PageResources prs = getPageResources();
prs.addColor(cs, this.writer.addToBody(value).getIndirectReference());
value = cs;
}
value.toPdf(null, this.content);
this.content.append('\n');
}
this.content.append("ID\n"); //$NON-NLS-1$
pimage.writeContent(this.content);
this.content.append("\nEI\nQ").append_i(this.separator); //$NON-NLS-1$
}
else {
PdfName name;
final PageResources prs = getPageResources();
final Image maskImage = image.getImageMask();
if (maskImage != null) {
name = this.writer.addDirectImageSimple(maskImage);
prs.addXObject(name, this.writer.getImageReference(name));
}
name = this.writer.addDirectImageSimple(image);
name = prs.addXObject(name, this.writer.getImageReference(name));
this.content.append(' ').append(name.getBytes()).append(" Do Q").append_i(this.separator); //$NON-NLS-1$
}
}
if (image.hasBorders()) {
saveState();
final float w = image.getWidth();
final float h = image.getHeight();
concatCTM(a / w, b / w, c / h, d / h, e, f);
rectangle(image);
restoreState();
}
if (image.getLayer() != null) {
endLayer();
}
Annotation annot = image.getAnnotation();
if (annot == null) {
return;
}
final 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);
final PdfAnnotation an = PdfAnnotationsImp.convertAnnotation(this.writer, annot, new Rectangle(llx, lly, urx, ury));
if (an == null) {
return;
}
addAnnotation(an);
}
catch (final Exception ee) {
throw new DocumentException(ee);
}
}
/**
* Makes this PdfContentByte empty.
* Calls reset( true )
*/
void reset() {
reset( true );
}
/**
* Makes this PdfContentByte empty.
* @param validateContent will call sanityCheck() if true.
* @since 2.1.6
*/
private void reset( final boolean validateContent ) {
this.content.reset();
if (validateContent) {
sanityCheck();
}
this.state = new GraphicState();
}
/**
* Starts the writing of text.
*/
public void beginText() {
if (this.inText) {
throw new IllegalPdfSyntaxException("Unbalanced begin/end text operators." ); //$NON-NLS-1$
}
this.inText = true;
this.state.xTLM = 0;
this.state.yTLM = 0;
this.content.append("BT").append_i(this.separator); //$NON-NLS-1$
}
/**
* Ends the writing of text and makes the current font invalid.
*/
public void endText() {
if (!this.inText) {
throw new IllegalPdfSyntaxException("Unbalanced begin/end text operators." ); //$NON-NLS-1$
}
this.inText = false;
this.content.append("ET").append_i(this.separator); //$NON-NLS-1$
}
/**
* Saves the graphic state. saveState and
* restoreState must be balanced.
*/
public void saveState() {
this.content.append("q").append_i(this.separator); //$NON-NLS-1$
this.stateList.add(new GraphicState(this.state));
}
/**
* Restores the graphic state. saveState and
* restoreState must be balanced.
*/
public void restoreState() {
this.content.append("Q").append_i(this.separator); //$NON-NLS-1$
final int idx = this.stateList.size() - 1;
if (idx < 0) {
throw new IllegalPdfSyntaxException("Unbalanced save/restore state operators."); //$NON-NLS-1$
}
this.state = this.stateList.get(idx);
this.stateList.remove(idx);
}
/**
* Sets the character spacing parameter.
*
* @param charSpace a parameter
*/
public void setCharacterSpacing(final float charSpace) {
this.state.charSpace = charSpace;
this.content.append(charSpace).append(" Tc").append_i(this.separator); //$NON-NLS-1$
}
/**
* Sets the word spacing parameter.
*
* @param wordSpace a parameter
*/
public void setWordSpacing(final float wordSpace) {
this.state.wordSpace = wordSpace;
this.content.append(wordSpace).append(" Tw").append_i(this.separator); //$NON-NLS-1$
}
/**
* Sets the horizontal scaling parameter.
*
* @param scale a parameter
*/
public void setHorizontalScaling(final float scale) {
this.state.scale = scale;
this.content.append(scale).append(" Tz").append_i(this.separator); //$NON-NLS-1$
}
/**
* Sets the text leading parameter.
*
* The leading parameter is measured in text space units. It specifies the vertical distance
* between the baselines of adjacent lines of text.
*
* @param leading the new leading
*/
public void setLeading(final float leading) {
this.state.leading = leading;
this.content.append(leading).append(" TL").append_i(this.separator); //$NON-NLS-1$
}
/**
* Set the font and the size for the subsequent text writing.
*
* @param bf the font
* @param size the font size in points
*/
public void setFontAndSize(final BaseFont bf, final float size) {
checkWriter();
if (size < 0.0001f && size > -0.0001f) {
throw new IllegalArgumentException("Font size too small: " + size); //$NON-NLS-1$
}
this.state.size = size;
this.state.fontDetails = this.writer.addSimple(bf);
final PageResources prs = getPageResources();
PdfName name = this.state.fontDetails.getFontName();
name = prs.addFont(name, this.state.fontDetails.getIndirectReference());
this.content.append(name.getBytes()).append(' ').append(size).append(" Tf").append_i(this.separator); //$NON-NLS-1$
}
/**
* Sets the text rendering parameter.
*
* @param rendering a parameter
*/
public void setTextRenderingMode(final int rendering) {
this.content.append(rendering).append(" Tr").append_i(this.separator); //$NON-NLS-1$
}
/**
* Sets the text rise parameter.
*
* This allows to write text in subscript or superscript mode.
*
* @param rise a parameter
*/
public void setTextRise(final float rise) {
this.content.append(rise).append(" Ts").append_i(this.separator); //$NON-NLS-1$
}
/**
* A helper to insert into the content stream the text
* converted to bytes according to the font's encoding.
*
* @param text the text to write
*/
private void showText2(final String text) {
if (this.state.fontDetails == null) {
throw new NullPointerException("Font and size must be set before writing any text"); //$NON-NLS-1$
}
final byte b[] = this.state.fontDetails.convertToBytes(text);
escapeString(b, this.content);
}
/**
* Shows the text.
*
* @param text the text to write
*/
public void showText(final String text) {
showText2(text);
this.content.append("Tj").append_i(this.separator); //$NON-NLS-1$
}
/**
* Constructs a kern array for a text in a certain font
* @param text the text
* @param font the font
* @return a PdfTextArray
*/
private static PdfTextArray getKernArray(final String text, final BaseFont font) {
final PdfTextArray pa = new PdfTextArray();
final StringBuffer acc = new StringBuffer();
final int len = text.length() - 1;
final char c[] = text.toCharArray();
if (len >= 0) {
acc.append(c, 0, 1);
}
for (int k = 0; k < len; ++k) {
final char c2 = c[k + 1];
final int kern = font.getKerning(c[k], c2);
if (kern == 0) {
acc.append(c2);
}
else {
pa.add(acc.toString());
acc.setLength(0);
acc.append(c, k + 1, 1);
pa.add(-kern);
}
}
pa.add(acc.toString());
return pa;
}
/**
* Shows the text kerned.
*
* @param text the text to write
*/
private void showTextKerned(final String text) {
if (this.state.fontDetails == null) {
throw new NullPointerException("Font and size must be set before writing any text"); //$NON-NLS-1$
}
final BaseFont bf = this.state.fontDetails.getBaseFont();
if (bf.hasKernPairs()) {
showText(getKernArray(text, bf));
} else {
showText(text);
}
}
/**
* Changes the text matrix.
*
* Remark: this operation also initializes the current point position.
*
* @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
*/
void setTextMatrix(final float a, final float b, final float c, final float d, final float x, final float y) {
this.state.xTLM = x;
this.state.yTLM = y;
this.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(this.separator); //$NON-NLS-1$
}
/**
* Changes the text matrix. The first four parameters are {1,0,0,1}.
*
* Remark: this operation also initializes the current point position.
*
* @param x operand 3,1 in the matrix
* @param y operand 3,2 in the matrix
*/
public void setTextMatrix(final float x, final 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
*/
void moveText(final float x, final float y) {
this.state.xTLM += x;
this.state.yTLM += y;
this.content.append(x).append(' ').append(y).append(" Td").append_i(this.separator); //$NON-NLS-1$
}
/**
* Gets the size of this content.
*
* @return the size of the content
*/
int size() {
return this.content.size();
}
/**
* Escapes a byte array according to the PDF conventions.
*
* @param b the byte array to escape
* @return an escaped byte array
*/
static byte[] escapeString(final byte b[]) {
final ByteBuffer content = new ByteBuffer();
escapeString(b, content);
return content.toByteArray();
}
/**
* Escapes a byte array according to the PDF conventions.
*
* @param b the byte array to escape
* @param content the content
*/
private static void escapeString(final byte b[], final ByteBuffer content) {
content.append_i('(');
for (final byte c : b) {
switch (c) {
case '\r':
content.append("\\r"); //$NON-NLS-1$
break;
case '\n':
content.append("\\n"); //$NON-NLS-1$
break;
case '\t':
content.append("\\t"); //$NON-NLS-1$
break;
case '\b':
content.append("\\b"); //$NON-NLS-1$
break;
case '\f':
content.append("\\f"); //$NON-NLS-1$
break;
case '(':
case ')':
case '\\':
content.append_i('\\').append_i(c);
break;
default:
content.append_i(c);
}
}
content.append(")"); //$NON-NLS-1$
}
/**
* Gets the root outline.
*
* @return the root outline
*/
public PdfOutline getRootOutline() {
checkWriter();
return this.pdf.getRootOutline();
}
/**
* 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
*/
private float getEffectiveStringWidth(final String text, final boolean kerned) {
final BaseFont bf = this.state.fontDetails.getBaseFont();
float w;
if (kerned) {
w = bf.getWidthPointKerned(text, this.state.size);
} else {
w = bf.getWidthPoint(text, this.state.size);
}
if (this.state.charSpace != 0.0f && text.length() > 1) {
w += this.state.charSpace * (text.length() -1);
}
final int ft = bf.getFontType();
if (this.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.charAt(i) == ' ') {
w += this.state.wordSpace;
}
}
}
if (this.state.scale != 100.0) {
w = w * this.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
*/
void showTextAligned(final int alignment, final String text, final float x, final float y, final float rotation) {
showTextAligned(alignment, text, x, y, rotation, false);
}
private void showTextAligned(final int alignment, final String text, float x, float y, final float rotation, final boolean kerned) {
if (this.state.fontDetails == null) {
throw new NullPointerException("Font and size must be set before writing any text"); //$NON-NLS-1$
}
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 {
final double alpha = rotation * Math.PI / 180.0;
final float cos = (float)Math.cos(alpha);
final 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);
}
}
/**
* 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(final float a, final float b, final float c, final float d, final float e, final float f) {
this.content.append(a).append(' ').append(b).append(' ').append(c).append(' ');
this.content.append(d).append(' ').append(e).append(' ').append(f).append(" cm").append_i(this.separator); //$NON-NLS-1$
}
/**
* Generates an array of bezier curves to draw an arc.
*
* (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.
*
* 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.
*
* Note: this code was taken from ReportLab (www.reportlab.org), an excellent
* PDF generator for Python (BSD license: http://www.reportlab.org/devfaq.html#1.3 ).
*
* @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, final float startAng, final 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.ceil(Math.abs(extent)/90f);
fragAngle = extent / Nfrag;
}
final float x_cen = (x1+x2)/2f;
final float y_cen = (y1+y2)/2f;
final float rx = (x2-x1)/2f;
final float ry = (y2-y1)/2f;
final float halfAng = (float)(fragAngle * Math.PI / 360.);
final float kappa = (float)Math.abs(4. / 3. * (1. - Math.cos(halfAng)) / Math.sin(halfAng));
final ArrayList pointList = new ArrayList();
for (int i = 0; i < Nfrag; ++i) {
final float theta0 = (float)((startAng + i*fragAngle) * Math.PI / 180.);
final float theta1 = (float)((startAng + (i+1)*fragAngle) * Math.PI / 180.);
final float cos0 = (float)Math.cos(theta0);
final float cos1 = (float)Math.cos(theta1);
final float sin0 = (float)Math.sin(theta0);
final 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(final float x1, final float y1, final float x2, final float y2, final float startAng, final float extent) {
final ArrayList ar = bezierArc(x1, y1, x2, y2, startAng, extent);
if (ar.isEmpty()) {
return;
}
float pt[] = ar.get(0);
moveTo(pt[0], pt[1]);
for (int k = 0; k < ar.size(); ++k) {
pt = ar.get(k);
curveTo(pt[2], pt[3], pt[4], pt[5], pt[6], pt[7]);
}
}
/**
* 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 PdfPatternPainter where the pattern will be created
*/
private PdfPatternPainter createPattern(final float width, final float height, final float xstep, final float ystep) {
checkWriter();
if ( xstep == 0.0f || ystep == 0.0f ) {
throw new RuntimeException("XStep or YStep can not be ZERO."); //$NON-NLS-1$
}
final PdfPatternPainter painter = new PdfPatternPainter(this.writer);
painter.setWidth(width);
painter.setHeight(height);
painter.setXStep(xstep);
painter.setYStep(ystep);
this.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 PdfPatternPainter where the pattern will be created
*/
PdfPatternPainter createPattern(final float width, final 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 null
* @return the PdfPatternPainter where the pattern will be created
*/
private PdfPatternPainter createPattern(final float width, final float height, final float xstep, final float ystep, final Color color) {
checkWriter();
if ( xstep == 0.0f || ystep == 0.0f ) {
throw new RuntimeException("XStep or YStep can not be ZERO."); //$NON-NLS-1$
}
final PdfPatternPainter painter = new PdfPatternPainter(this.writer, color);
painter.setWidth(width);
painter.setHeight(height);
painter.setXStep(xstep);
painter.setYStep(ystep);
this.writer.addSimplePattern(painter);
return painter;
}
private PdfTemplate createTemplate(final float width, final float height, final PdfName forcedName) {
checkWriter();
final PdfTemplate template = new PdfTemplate(this.writer);
template.setWidth(width);
template.setHeight(height);
this.writer.addDirectTemplateSimple(template, forcedName);
return template;
}
private PdfAppearance createAppearance(final float width, final float height, final PdfName forcedName) {
checkWriter();
final PdfAppearance template = new PdfAppearance(this.writer);
template.setWidth(width);
template.setHeight(height);
this.writer.addDirectTemplateSimple(template, forcedName);
return template;
}
/**
* 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 void addTemplate(final PdfTemplate template, final float a, final float b, final float c, final float d, final float e, final float f) {
checkWriter();
checkNoPattern(template);
PdfName name = this.writer.addDirectTemplateSimple(template, null);
final PageResources prs = getPageResources();
name = prs.addXObject(name, template.getIndirectReference());
this.content.append("q "); //$NON-NLS-1$
this.content.append(a).append(' ');
this.content.append(b).append(' ');
this.content.append(c).append(' ');
this.content.append(d).append(' ');
this.content.append(e).append(' ');
this.content.append(f).append(" cm "); //$NON-NLS-1$
this.content.append(name.getBytes()).append(" Do Q").append_i(this.separator); //$NON-NLS-1$
}
void addTemplateReference(final PdfIndirectReference template, PdfName name, final float a, final float b, final float c, final float d, final float e, final float f) {
checkWriter();
final PageResources prs = getPageResources();
name = prs.addXObject(name, template);
this.content.append("q "); //$NON-NLS-1$
this.content.append(a).append(' ');
this.content.append(b).append(' ');
this.content.append(c).append(' ');
this.content.append(d).append(' ');
this.content.append(e).append(' ');
this.content.append(f).append(" cm "); //$NON-NLS-1$
this.content.append(name.getBytes()).append(" Do Q").append_i(this.separator); //$NON-NLS-1$
}
/**
* 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(final PdfTemplate template, final float x, final float y) {
addTemplate(template, 1, 0, 0, 1, x, y);
}
/**
* Changes the current color for filling paths (device dependent colors!).
*
* Sets the color space to DeviceCMYK (or the DefaultCMYK color space),
* and sets the color to use for filling paths.
*
* This method is described in the 'Portable Document Format Reference Manual version 1.3'
* section 8.5.2.1 (page 331).
*
* Following the PDF manual, each operand must be a number between 0 (no ink) and
* 1 (maximum ink). This method however accepts only integers between 0x00 and 0xFF.
*
* @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 void setCMYKColorFill(final int cyan, final int magenta, final int yellow, final int black) {
this.content.append((float)(cyan & 0xFF) / 0xFF);
this.content.append(' ');
this.content.append((float)(magenta & 0xFF) / 0xFF);
this.content.append(' ');
this.content.append((float)(yellow & 0xFF) / 0xFF);
this.content.append(' ');
this.content.append((float)(black & 0xFF) / 0xFF);
this.content.append(" k").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current color for stroking paths (device dependent colors!).
*
* Sets the color space to DeviceCMYK (or the DefaultCMYK color space),
* and sets the color to use for stroking paths.
*
* This method is described in the 'Portable Document Format Reference Manual version 1.3'
* section 8.5.2.1 (page 331).
* Following the PDF manual, each operand must be a number between 0 (minimum intensity) and
* 1 (maximum intensity). This method however accepts only integers 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 void setCMYKColorStroke(final int cyan, final int magenta, final int yellow, final int black) {
this.content.append((float)(cyan & 0xFF) / 0xFF);
this.content.append(' ');
this.content.append((float)(magenta & 0xFF) / 0xFF);
this.content.append(' ');
this.content.append((float)(yellow & 0xFF) / 0xFF);
this.content.append(' ');
this.content.append((float)(black & 0xFF) / 0xFF);
this.content.append(" K").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current color for filling paths (device dependent colors!).
*
* Sets the color space to DeviceRGB (or the DefaultRGB color space),
* and sets the color to use for filling paths.
*
* This method is described in the 'Portable Document Format Reference Manual version 1.3'
* section 8.5.2.1 (page 331).
*
* Following the PDF manual, each operand must be a number between 0 (minimum intensity) and
* 1 (maximum intensity). This method however accepts only integers between 0x00 and 0xFF.
*
* @param red the intensity of red
* @param green the intensity of green
* @param blue the intensity of blue
*/
public void setRGBColorFill(final int red, final int green, final int blue) {
HelperRGB((float)(red & 0xFF) / 0xFF, (float)(green & 0xFF) / 0xFF, (float)(blue & 0xFF) / 0xFF);
this.content.append(" rg").append_i(this.separator); //$NON-NLS-1$
}
/**
* Changes the current color for stroking paths (device dependent colors!).
*
* Sets the color space to DeviceRGB (or the DefaultRGB color space),
* and sets the color to use for stroking paths.
*
* This method is described in the 'Portable Document Format Reference Manual version 1.3'
* section 8.5.2.1 (page 331).
* Following the PDF manual, each operand must be a number between 0 (minimum intensity) and
* 1 (maximum intensity). This method however accepts only integers between 0x00 and 0xFF.
*
* @param red the intensity of red
* @param green the intensity of green
* @param blue the intensity of blue
*/
public void setRGBColorStroke(final int red, final int green, final int blue) {
HelperRGB((float)(red & 0xFF) / 0xFF, (float)(green & 0xFF) / 0xFF, (float)(blue & 0xFF) / 0xFF);
this.content.append(" RG").append_i(this.separator); //$NON-NLS-1$
}
/** Sets the stroke color. color can be an
* ExtendedColor.
* @param color the color
*/
public void setColorStroke(final Color color) {
PdfXConformanceImp.checkPDFXConformance(this.writer, PdfXConformanceImp.PDFXKEY_COLOR, color);
final int type = ExtendedColor.getType(color);
switch (type) {
case ExtendedColor.TYPE_GRAY: {
setGrayStroke(((GrayColor)color).getGray());
break;
}
case ExtendedColor.TYPE_CMYK: {
final CMYKColor cmyk = (CMYKColor)color;
setCMYKColorStrokeF(cmyk.getCyan(), cmyk.getMagenta(), cmyk.getYellow(), cmyk.getBlack());
break;
}
case ExtendedColor.TYPE_SEPARATION: {
final SpotColor spot = (SpotColor)color;
setColorStroke(spot.getPdfSpotColor(), spot.getTint());
break;
}
case ExtendedColor.TYPE_PATTERN: {
final PatternColor pat = (PatternColor) color;
setPatternStroke(pat.getPainter());
break;
}
case ExtendedColor.TYPE_SHADING: {
final ShadingColor shading = (ShadingColor) color;
setShadingStroke(shading.getPdfShadingPattern());
break;
}
default:
setRGBColorStroke(color.getRed(), color.getGreen(), color.getBlue());
}
}
/** Sets the fill color. color can be an
* ExtendedColor.
* @param color the color
*/
public void setColorFill(final Color color) {
PdfXConformanceImp.checkPDFXConformance(this.writer, PdfXConformanceImp.PDFXKEY_COLOR, color);
final int type = ExtendedColor.getType(color);
switch (type) {
case ExtendedColor.TYPE_GRAY: {
setGrayFill(((GrayColor)color).getGray());
break;
}
case ExtendedColor.TYPE_CMYK: {
final CMYKColor cmyk = (CMYKColor)color;
setCMYKColorFillF(cmyk.getCyan(), cmyk.getMagenta(), cmyk.getYellow(), cmyk.getBlack());
break;
}
case ExtendedColor.TYPE_SEPARATION: {
final SpotColor spot = (SpotColor)color;
setColorFill(spot.getPdfSpotColor(), spot.getTint());
break;
}
case ExtendedColor.TYPE_PATTERN: {
final PatternColor pat = (PatternColor) color;
setPatternFill(pat.getPainter());
break;
}
case ExtendedColor.TYPE_SHADING: {
final ShadingColor shading = (ShadingColor) color;
setShadingFill(shading.getPdfShadingPattern());
break;
}
default:
setRGBColorFill(color.getRed(), color.getGreen(), color.getBlue());
}
}
/** 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 void setColorFill(final PdfSpotColor sp, final float tint) {
checkWriter();
this.state.colorDetails = this.writer.addSimple(sp);
final PageResources prs = getPageResources();
PdfName name = this.state.colorDetails.getColorName();
name = prs.addColor(name, this.state.colorDetails.getIndirectReference());
this.content.append(name.getBytes()).append(" cs ").append(tint).append(" scn").append_i(this.separator); //$NON-NLS-1$ //$NON-NLS-2$
}
/** 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 void setColorStroke(final PdfSpotColor sp, final float tint) {
checkWriter();
this.state.colorDetails = this.writer.addSimple(sp);
final PageResources prs = getPageResources();
PdfName name = this.state.colorDetails.getColorName();
name = prs.addColor(name, this.state.colorDetails.getIndirectReference());
this.content.append(name.getBytes()).append(" CS ").append(tint).append(" SCN").append_i(this.separator); //$NON-NLS-1$ //$NON-NLS-2$
}
/** Sets the fill color to a pattern. The pattern can be
* colored or uncolored.
* @param p the pattern
*/
public void setPatternFill(final PdfPatternPainter p) {
if (p.isStencil()) {
setPatternFill(p, p.getDefaultColor());
return;
}
checkWriter();
final PageResources prs = getPageResources();
PdfName name = this.writer.addSimplePattern(p);
name = prs.addPattern(name, p.getIndirectReference());
this.content.append(PdfName.PATTERN.getBytes()).append(" cs ").append(name.getBytes()).append(" scn").append_i(this.separator); //$NON-NLS-1$ //$NON-NLS-2$
}
/** Outputs the color values to the content.
* @param color The color
* @param tint the tint if it is a spot color, ignored otherwise
*/
private void outputColorNumbers(final Color color, final float tint) {
PdfXConformanceImp.checkPDFXConformance(this.writer, PdfXConformanceImp.PDFXKEY_COLOR, color);
final int type = ExtendedColor.getType(color);
switch (type) {
case ExtendedColor.TYPE_RGB:
this.content.append((float)color.getRed() / 0xFF);
this.content.append(' ');
this.content.append((float)color.getGreen() / 0xFF);
this.content.append(' ');
this.content.append((float)color.getBlue() / 0xFF);
break;
case ExtendedColor.TYPE_GRAY:
this.content.append(((GrayColor)color).getGray());
break;
case ExtendedColor.TYPE_CMYK: {
final CMYKColor cmyk = (CMYKColor)color;
this.content.append(cmyk.getCyan()).append(' ').append(cmyk.getMagenta());
this.content.append(' ').append(cmyk.getYellow()).append(' ').append(cmyk.getBlack());
break;
}
case ExtendedColor.TYPE_SEPARATION:
this.content.append(tint);
break;
default:
throw new RuntimeException("Invalid color type."); //$NON-NLS-1$
}
}
/** Sets the fill color to an uncolored pattern.
* @param p the pattern
* @param color the color of the pattern
*/
private void setPatternFill(final PdfPatternPainter p, final Color color) {
if (ExtendedColor.getType(color) == ExtendedColor.TYPE_SEPARATION) {
setPatternFill(p, color, ((SpotColor)color).getTint());
} 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 void setPatternFill(final PdfPatternPainter p, final Color color, final float tint) {
checkWriter();
if (!p.isStencil()) {
throw new RuntimeException("An uncolored pattern was expected."); //$NON-NLS-1$
}
final PageResources prs = getPageResources();
PdfName name = this.writer.addSimplePattern(p);
name = prs.addPattern(name, p.getIndirectReference());
final ColorDetails csDetail = this.writer.addSimplePatternColorspace(color);
final PdfName cName = prs.addColor(csDetail.getColorName(), csDetail.getIndirectReference());
this.content.append(cName.getBytes()).append(" cs").append_i(this.separator); //$NON-NLS-1$
outputColorNumbers(color, tint);
this.content.append(' ').append(name.getBytes()).append(" scn").append_i(this.separator); //$NON-NLS-1$
}
/** Sets the stroke color to an uncolored pattern.
* @param p the pattern
* @param color the color of the pattern
*/
private void setPatternStroke(final PdfPatternPainter p, final Color color) {
if (ExtendedColor.getType(color) == ExtendedColor.TYPE_SEPARATION) {
setPatternStroke(p, color, ((SpotColor)color).getTint());
} 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 void setPatternStroke(final PdfPatternPainter p, final Color color, final float tint) {
checkWriter();
if (!p.isStencil()) {
throw new RuntimeException("An uncolored pattern was expected."); //$NON-NLS-1$
}
final PageResources prs = getPageResources();
PdfName name = this.writer.addSimplePattern(p);
name = prs.addPattern(name, p.getIndirectReference());
final ColorDetails csDetail = this.writer.addSimplePatternColorspace(color);
final PdfName cName = prs.addColor(csDetail.getColorName(), csDetail.getIndirectReference());
this.content.append(cName.getBytes()).append(" CS").append_i(this.separator); //$NON-NLS-1$
outputColorNumbers(color, tint);
this.content.append(' ').append(name.getBytes()).append(" SCN").append_i(this.separator); //$NON-NLS-1$
}
/** Sets the stroke color to a pattern. The pattern can be
* colored or uncolored.
* @param p the pattern
*/
public void setPatternStroke(final PdfPatternPainter p) {
if (p.isStencil()) {
setPatternStroke(p, p.getDefaultColor());
return;
}
checkWriter();
final PageResources prs = getPageResources();
PdfName name = this.writer.addSimplePattern(p);
name = prs.addPattern(name, p.getIndirectReference());
this.content.append(PdfName.PATTERN.getBytes()).append(" CS ").append(name.getBytes()).append(" SCN").append_i(this.separator); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* Paints using a shading object.
* @param shading the shading object
*/
private void paintShading(final PdfShading shading) {
this.writer.addSimpleShading(shading);
final PageResources prs = getPageResources();
final PdfName name = prs.addShading(shading.getShadingName(), shading.getShadingReference());
this.content.append(name.getBytes()).append(" sh").append_i(this.separator); //$NON-NLS-1$
final ColorDetails details = shading.getColorDetails();
if (details != null) {
prs.addColor(details.getColorName(), details.getIndirectReference());
}
}
/**
* Sets the shading fill pattern.
* @param shading the shading pattern
*/
public void setShadingFill(final PdfShadingPattern shading) {
this.writer.addSimpleShadingPattern(shading);
final PageResources prs = getPageResources();
final PdfName name = prs.addPattern(shading.getPatternName(), shading.getPatternReference());
this.content.append(PdfName.PATTERN.getBytes()).append(" cs ").append(name.getBytes()).append(" scn").append_i(this.separator); //$NON-NLS-1$ //$NON-NLS-2$
final ColorDetails details = shading.getColorDetails();
if (details != null) {
prs.addColor(details.getColorName(), details.getIndirectReference());
}
}
/**
* Sets the shading stroke pattern
* @param shading the shading pattern
*/
public void setShadingStroke(final PdfShadingPattern shading) {
this.writer.addSimpleShadingPattern(shading);
final PageResources prs = getPageResources();
final PdfName name = prs.addPattern(shading.getPatternName(), shading.getPatternReference());
this.content.append(PdfName.PATTERN.getBytes()).append(" CS ").append(name.getBytes()).append(" SCN").append_i(this.separator); //$NON-NLS-1$ //$NON-NLS-2$
final ColorDetails details = shading.getColorDetails();
if (details != null) {
prs.addColor(details.getColorName(), details.getIndirectReference());
}
}
/** Check if we have a valid PdfWriter.
*
*/
protected void checkWriter() {
if (this.writer == null) {
throw new NullPointerException("The writer in PdfContentByte is null."); //$NON-NLS-1$
}
}
/**
* Show an array of text.
* @param text array of text
*/
void showText(final PdfTextArray text) {
if (this.state.fontDetails == null) {
throw new NullPointerException("Font and size must be set before writing any text"); //$NON-NLS-1$
}
this.content.append("["); //$NON-NLS-1$
final ArrayList arrayList = text.getArrayList();
boolean lastWasNumber = false;
for (int k = 0; k < arrayList.size(); ++k) {
final Object obj = arrayList.get(k);
if (obj instanceof String) {
showText2((String)obj);
lastWasNumber = false;
}
else {
if (lastWasNumber) {
this.content.append(' ');
} else {
lastWasNumber = true;
}
this.content.append(((Float)obj).floatValue());
}
}
this.content.append("]TJ").append_i(this.separator); //$NON-NLS-1$
}
/**
* Gets the PdfWriter in use by this object.
* @return the PdfWriter in use by this object
*/
public PdfWriter getPdfWriter() {
return this.writer;
}
/**
* Gets the PdfDocument in use by this object.
* @return the PdfDocument in use by this object
*/
public PdfDocument getPdfDocument() {
return this.pdf;
}
/**
* Gets a duplicate of this PdfContentByte. All
* the members are copied by reference but the buffer stays different.
*
* @return a copy of this PdfContentByte
*/
public PdfContentByte getDuplicate() {
return new PdfContentByte(this.writer);
}
/**
* 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;
}
final 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 PdfAction
* @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 setAction(final PdfAction action, final float llx, final float lly, final float urx, final float ury) {
this.pdf.setAction(action, llx, lly, urx, ury);
}
/** Outputs a String directly to the content.
* @param s the String
*/
public void setLiteral(final String s) {
this.content.append(s);
}
/** Outputs a char directly to the content.
* @param c the char
*/
public void setLiteral(final char c) {
this.content.append(c);
}
/** Outputs a float directly to the content.
* @param n the float
*/
public void setLiteral(final float n) {
this.content.append(n);
}
/** Throws an error if it is a pattern.
* @param t the object to check
*/
private void checkNoPattern(final PdfTemplate t) {
if (t.getType() == PdfTemplate.TYPE_PATTERN) {
throw new RuntimeException("Invalid use of a pattern. A template was expected."); //$NON-NLS-1$
}
}
/**
* Draws a TextField.
* @param llx
* @param lly
* @param urx
* @param ury
* @param on
*/
void drawRadioField(float llx, float lly, float urx, float ury, final boolean on) {
if (llx > urx) { final float x = llx; llx = urx; urx = x; }
if (lly > ury) { final 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.
* @param llx
* @param lly
* @param urx
* @param ury
*/
void drawTextField(float llx, float lly, float urx, float ury) {
if (llx > urx) { final float x = llx; llx = urx; urx = x; }
if (lly > ury) { final 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.
* @param llx
* @param lly
* @param urx
* @param ury
* @param text
* @param bf
* @param size
*/
void drawButton(float llx, float lly, float urx, float ury, final String text, final BaseFont bf, final float size) {
if (llx > urx) { final float x = llx; llx = urx; urx = x; }
if (lly > ury) { final 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();
}
PageResources getPageResources() {
return this.pdf.getPageResources();
}
/** Sets the graphic state
* @param gstate the graphic state
*/
public void setGState(final PdfGState gstate) {
final PdfObject obj[] = this.writer.addSimpleExtGState(gstate);
final PageResources prs = getPageResources();
final PdfName name = prs.addExtGState((PdfName)obj[0], (PdfIndirectReference)obj[1]);
this.content.append(name.getBytes()).append(" gs").append_i(this.separator); //$NON-NLS-1$
}
/**
* Begins a graphic block whose visibility is controlled by the layer.
* Blocks can be nested. Each block must be terminated by an {@link #endLayer()}.
* 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
*/
private void beginLayer(final PdfOCG layer) {
if (layer instanceof PdfLayer && ((PdfLayer)layer).getTitle() != null) {
throw new IllegalArgumentException("A title is not a layer"); //$NON-NLS-1$
}
if (this.layerDepth == null) {
this.layerDepth = new ArrayList();
}
if (layer instanceof PdfLayerMembership) {
this.layerDepth.add(new Integer(1));
beginLayer2(layer);
return;
}
int n = 0;
PdfLayer la = (PdfLayer)layer;
while (la != null) {
if (la.getTitle() == null) {
beginLayer2(la);
++n;
}
la = la.getParent();
}
this.layerDepth.add(new Integer(n));
}
private void beginLayer2(final PdfOCG layer) {
PdfName name = (PdfName)this.writer.addSimpleProperty(layer, layer.getRef())[0];
final PageResources prs = getPageResources();
name = prs.addProperty(name, layer.getRef());
this.content.append("/OC ").append(name.getBytes()).append(" BDC").append_i(this.separator); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* Ends a layer controlled graphic block. It will end the most recent open block.
*/
private void endLayer() {
int n = 1;
if (this.layerDepth != null && !this.layerDepth.isEmpty()) {
n = this.layerDepth.get(this.layerDepth.size() - 1).intValue();
this.layerDepth.remove(this.layerDepth.size() - 1);
} else {
throw new IllegalPdfSyntaxException("Unbalanced layer operators." ); //$NON-NLS-1$
}
while (n-- > 0) {
this.content.append("EMC").append_i(this.separator); //$NON-NLS-1$
}
}
void addAnnotation(final PdfAnnotation annot) {
this.writer.addAnnotation(annot);
}
/**
* Begins a marked content sequence. If property is null the mark will be of the type
* BMC otherwise it will be BDC.
* @param tag the tag
* @param property the property
* @param inline true to include the property in the content or false
* to include the property in the resource dictionary with the possibility of reusing
*/
private void beginMarkedContentSequence(final PdfName tag, final PdfDictionary property, final boolean inline) {
if (property == null) {
this.content.append(tag.getBytes()).append(" BMC").append_i(this.separator); //$NON-NLS-1$
return;
}
this.content.append(tag.getBytes()).append(' ');
if (inline) {
try {
property.toPdf(this.writer, this.content);
}
catch (final Exception e) {
throw new ExceptionConverter(e);
}
} else {
PdfObject[] objs;
if (this.writer.propertyExists(property)) {
objs = this.writer.addSimpleProperty(property, null);
} else {
objs = this.writer.addSimpleProperty(property, this.writer.getPdfIndirectReference());
}
PdfName name = (PdfName)objs[0];
final PageResources prs = getPageResources();
name = prs.addProperty(name, (PdfIndirectReference)objs[1]);
this.content.append(name.getBytes());
}
this.content.append(" BDC").append_i(this.separator); //$NON-NLS-1$
++this.mcDepth;
}
/**
* 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)
*/
private void sanityCheck() {
if (this.mcDepth != 0) {
throw new IllegalPdfSyntaxException("Unbalanced marked content operators." ); //$NON-NLS-1$
}
if (this.inText) {
throw new IllegalPdfSyntaxException("Unbalanced begin/end text operators." ); //$NON-NLS-1$
}
if (this.layerDepth != null && !this.layerDepth.isEmpty()) {
throw new IllegalPdfSyntaxException("Unbalanced layer operators." ); //$NON-NLS-1$
}
if (!this.stateList.isEmpty()) {
throw new IllegalPdfSyntaxException("Unbalanced save/restore state operators." ); //$NON-NLS-1$
}
}
}