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An Open Source JavaFX PDF Viewer
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2015 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* SH.java
* ---------------
*/
package org.jpedal.parser.shape;
import com.idrsolutions.pdf.color.shading.ShadedPaint;
import org.jpedal.color.ColorspaceFactory;
import org.jpedal.color.GenericColorSpace;
import org.jpedal.color.PdfPaint;
import org.jpedal.io.PdfObjectReader;
import org.jpedal.objects.GraphicsState;
import org.jpedal.objects.PdfPageData;
import org.jpedal.objects.raw.PdfDictionary;
import org.jpedal.objects.raw.PdfObject;
import org.jpedal.render.DynamicVectorRenderer;
import org.jpedal.utils.LogWriter;
import java.awt.*;
import java.util.Map;
import org.jpedal.parser.Cmd;
import org.jpedal.parser.PdfObjectCache;
public class SH {
public static void execute(final String shadingObject, final PdfObjectCache cache, final GraphicsState gs,
final boolean isPrinting, final Map shadingColorspacesObjects, final int pageNum,
final PdfObjectReader currentPdfFile,
final PdfPageData pageData, final DynamicVectorRenderer current) {
PdfObject Shading= (PdfObject) cache.get(PdfObjectCache.LocalShadings, shadingObject);
if(Shading==null){
Shading= (PdfObject) cache.get(PdfObjectCache.GlobalShadings, shadingObject);
}
//workout shape
Shape shadeShape=null;
/**if(gs.CTM!=null){
int x=(int)gs.CTM[2][0];
int y=(int)gs.CTM[2][1];
int w=(int)gs.CTM[0][0];
if(w==0){
w=(int)gs.CTM[1][0];
}
if(w<0)
w=-w;
int h=(int)gs.CTM[1][1];
if(h==0)
h=(int)gs.CTM[0][1];
if(h<0)
h=-h;
shadeShape=new Rectangle(x,y,w,h);
}/**/
if(shadeShape==null) {
shadeShape = gs.getClippingShape();
}
if(shadeShape==null) {
shadeShape = new Rectangle(pageData.getMediaBoxX(pageNum), pageData.getMediaBoxY(pageNum), pageData.getMediaBoxWidth(pageNum), pageData.getMediaBoxHeight(pageNum));
}
if (current.isHTMLorSVG() && cache.groupObj==null) {
current.eliminateHiddenText(shadeShape, gs, 7, true);
}
/**
* generate the appropriate shading and then colour in the current clip with it
*/
try{
/**
* workout colorspace
**/
final PdfObject ColorSpace=Shading.getDictionary(PdfDictionary.ColorSpace);
final GenericColorSpace newColorSpace= ColorspaceFactory.getColorSpaceInstance(currentPdfFile, ColorSpace, shadingColorspacesObjects);
newColorSpace.setPrinting(isPrinting);
/**setup shading object*/
final PdfPaint shading=new ShadedPaint(Shading, isPrinting,newColorSpace, currentPdfFile,gs.CTM,false);
//see 18992 and /Users/markee/PDFdata/test_data/sample_pdfs_html/general/test22.pdf
if(gs.CTM[0][0]==0 && gs.CTM[0][1]>0 && gs.CTM[1][0]>0 && gs.CTM[1][1]==0 && current.getMode().equals(DynamicVectorRenderer.Mode.SMASK)){
shading.setRenderingType(DynamicVectorRenderer.CREATE_SMASK);
}
/**
* shade the current clip
*/
gs.setFillType(GraphicsState.FILL);
gs.setNonstrokeColor(shading);
//track colorspace use
cache.put(PdfObjectCache.ColorspacesUsed, newColorSpace.getID(), "x");
current.drawShape(shadeShape, gs, Cmd.F);
}catch(final Exception e){
LogWriter.writeLog("Exception: " + e.getMessage());
}
}
}