Java tutorial
/* * Copyright 2002 by Phillip Pan * * 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.lowagie.text.pdf; import java.awt.Color; import com.lowagie.text.DocumentException; import com.lowagie.text.Image; import com.lowagie.text.Rectangle; /** * Implements the pattern. */ public final class PdfPatternPainter extends PdfTemplate { float xstep, ystep; boolean stencil = false; Color defaultColor; /** *Creates a <CODE>PdfPattern</CODE>. */ private PdfPatternPainter() { super(); type = TYPE_PATTERN; } /** * Creates new PdfPattern * * @param wr the <CODE>PdfWriter</CODE> */ PdfPatternPainter(PdfWriter wr) { super(wr); type = TYPE_PATTERN; } PdfPatternPainter(PdfWriter wr, Color defaultColor) { this(wr); stencil = true; if (defaultColor == null) this.defaultColor = Color.gray; else this.defaultColor = defaultColor; } /** * Sets the horizontal interval of this pattern. * * @param xstep the xstep in horizontal painting */ public void setXStep(float xstep) { this.xstep = xstep; } /** * Sets the vertical interval of this pattern. * * @param ystep in vertical painting */ public void setYStep(float ystep) { this.ystep = ystep; } /** * Returns the horizontal interval when repeating the pattern. * @return a value */ public float getXStep() { return this.xstep; } /** * Returns the vertical interval when repeating the pattern. * @return a value */ public float getYStep() { return this.ystep; } /** * Tells you if this pattern is colored/uncolored (stencil = uncolored, you need to set a default color). * @return true if the pattern is an uncolored tiling pattern (stencil). */ public boolean isStencil() { return stencil; } /** * Sets the transformation matrix for the pattern. * @param a * @param b * @param c * @param d * @param e * @param f */ public void setPatternMatrix(float a, float b, float c, float d, float e, float f) { setMatrix(a, b, c, d, e, f); } /** * Gets the stream representing this pattern * @return the stream representing this pattern */ PdfPattern getPattern() { return new PdfPattern(this); } /** * Gets the stream representing this pattern * @param compressionLevel the compression level of the stream * @return the stream representing this pattern * @since 2.1.3 */ PdfPattern getPattern(int compressionLevel) { return new PdfPattern(this, compressionLevel); } /** * Gets a duplicate of this <CODE>PdfPatternPainter</CODE>. All * the members are copied by reference but the buffer stays different. * @return a copy of this <CODE>PdfPatternPainter</CODE> */ public PdfContentByte getDuplicate() { PdfPatternPainter tpl = new PdfPatternPainter(); tpl.writer = writer; tpl.pdf = pdf; tpl.thisReference = thisReference; tpl.pageResources = pageResources; tpl.bBox = new Rectangle(bBox); tpl.xstep = xstep; tpl.ystep = ystep; tpl.matrix = matrix; tpl.stencil = stencil; tpl.defaultColor = defaultColor; return tpl; } /** * Returns the default color of the pattern. * @return a Color */ public Color getDefaultColor() { return defaultColor; } /** * @see com.lowagie.text.pdf.PdfContentByte#setGrayFill(float) */ public void setGrayFill(float gray) { checkNoColor(); super.setGrayFill(gray); } /** * @see com.lowagie.text.pdf.PdfContentByte#resetGrayFill() */ public void resetGrayFill() { checkNoColor(); super.resetGrayFill(); } /** * @see com.lowagie.text.pdf.PdfContentByte#setGrayStroke(float) */ public void setGrayStroke(float gray) { checkNoColor(); super.setGrayStroke(gray); } /** * @see com.lowagie.text.pdf.PdfContentByte#resetGrayStroke() */ public void resetGrayStroke() { checkNoColor(); super.resetGrayStroke(); } /** * @see com.lowagie.text.pdf.PdfContentByte#setRGBColorFillF(float, float, float) */ public void setRGBColorFillF(float red, float green, float blue) { checkNoColor(); super.setRGBColorFillF(red, green, blue); } /** * @see com.lowagie.text.pdf.PdfContentByte#resetRGBColorFill() */ public void resetRGBColorFill() { checkNoColor(); super.resetRGBColorFill(); } /** * @see com.lowagie.text.pdf.PdfContentByte#setRGBColorStrokeF(float, float, float) */ public void setRGBColorStrokeF(float red, float green, float blue) { checkNoColor(); super.setRGBColorStrokeF(red, green, blue); } /** * @see com.lowagie.text.pdf.PdfContentByte#resetRGBColorStroke() */ public void resetRGBColorStroke() { checkNoColor(); super.resetRGBColorStroke(); } /** * @see com.lowagie.text.pdf.PdfContentByte#setCMYKColorFillF(float, float, float, float) */ public void setCMYKColorFillF(float cyan, float magenta, float yellow, float black) { checkNoColor(); super.setCMYKColorFillF(cyan, magenta, yellow, black); } /** * @see com.lowagie.text.pdf.PdfContentByte#resetCMYKColorFill() */ public void resetCMYKColorFill() { checkNoColor(); super.resetCMYKColorFill(); } /** * @see com.lowagie.text.pdf.PdfContentByte#setCMYKColorStrokeF(float, float, float, float) */ public void setCMYKColorStrokeF(float cyan, float magenta, float yellow, float black) { checkNoColor(); super.setCMYKColorStrokeF(cyan, magenta, yellow, black); } /** * @see com.lowagie.text.pdf.PdfContentByte#resetCMYKColorStroke() */ public void resetCMYKColorStroke() { checkNoColor(); super.resetCMYKColorStroke(); } /** * @see com.lowagie.text.pdf.PdfContentByte#addImage(com.lowagie.text.Image, float, float, float, float, float, float) */ public void addImage(Image image, float a, float b, float c, float d, float e, float f) throws DocumentException { if (stencil && !image.isMask()) checkNoColor(); super.addImage(image, a, b, c, d, e, f); } /** * @see com.lowagie.text.pdf.PdfContentByte#setCMYKColorFill(int, int, int, int) */ public void setCMYKColorFill(int cyan, int magenta, int yellow, int black) { checkNoColor(); super.setCMYKColorFill(cyan, magenta, yellow, black); } /** * @see com.lowagie.text.pdf.PdfContentByte#setCMYKColorStroke(int, int, int, int) */ public void setCMYKColorStroke(int cyan, int magenta, int yellow, int black) { checkNoColor(); super.setCMYKColorStroke(cyan, magenta, yellow, black); } /** * @see com.lowagie.text.pdf.PdfContentByte#setRGBColorFill(int, int, int) */ public void setRGBColorFill(int red, int green, int blue) { checkNoColor(); super.setRGBColorFill(red, green, blue); } /** * @see com.lowagie.text.pdf.PdfContentByte#setRGBColorStroke(int, int, int) */ public void setRGBColorStroke(int red, int green, int blue) { checkNoColor(); super.setRGBColorStroke(red, green, blue); } /** * @see com.lowagie.text.pdf.PdfContentByte#setColorStroke(java.awt.Color) */ public void setColorStroke(Color color) { checkNoColor(); super.setColorStroke(color); } /** * @see com.lowagie.text.pdf.PdfContentByte#setColorFill(java.awt.Color) */ public void setColorFill(Color color) { checkNoColor(); super.setColorFill(color); } /** * @see com.lowagie.text.pdf.PdfContentByte#setColorFill(com.lowagie.text.pdf.PdfSpotColor, float) */ public void setColorFill(PdfSpotColor sp, float tint) { checkNoColor(); super.setColorFill(sp, tint); } /** * @see com.lowagie.text.pdf.PdfContentByte#setColorStroke(com.lowagie.text.pdf.PdfSpotColor, float) */ public void setColorStroke(PdfSpotColor sp, float tint) { checkNoColor(); super.setColorStroke(sp, tint); } /** * @see com.lowagie.text.pdf.PdfContentByte#setPatternFill(com.lowagie.text.pdf.PdfPatternPainter) */ public void setPatternFill(PdfPatternPainter p) { checkNoColor(); super.setPatternFill(p); } /** * @see com.lowagie.text.pdf.PdfContentByte#setPatternFill(com.lowagie.text.pdf.PdfPatternPainter, java.awt.Color, float) */ public void setPatternFill(PdfPatternPainter p, Color color, float tint) { checkNoColor(); super.setPatternFill(p, color, tint); } /** * @see com.lowagie.text.pdf.PdfContentByte#setPatternStroke(com.lowagie.text.pdf.PdfPatternPainter, java.awt.Color, float) */ public void setPatternStroke(PdfPatternPainter p, Color color, float tint) { checkNoColor(); super.setPatternStroke(p, color, tint); } /** * @see com.lowagie.text.pdf.PdfContentByte#setPatternStroke(com.lowagie.text.pdf.PdfPatternPainter) */ public void setPatternStroke(PdfPatternPainter p) { checkNoColor(); super.setPatternStroke(p); } void checkNoColor() { if (stencil) throw new RuntimeException("Colors are not allowed in uncolored tile patterns."); } }