org.jpedal.external.ExternalHandlers Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of OpenViewerFX Show documentation
Show all versions of OpenViewerFX Show documentation
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
*
* ---------------
* ExternalHandlers.java
* ---------------
*/
package org.jpedal.external;
import org.jpedal.objects.Javascript;
import org.jpedal.objects.acroforms.AcroRenderer;
import org.jpedal.objects.acroforms.creation.FormFactory;
import org.jpedal.objects.javascript.ExpressionEngine;
import org.jpedal.parser.PdfStreamDecoder;
import org.jpedal.parser.ValueTypes;
import org.jpedal.render.DynamicVectorRenderer;
import java.util.Map;
import org.jpedal.display.GUIModes;
public class ExternalHandlers {
FormFactory userFormFactory;
AdditonalHandler additionalHandler;
/**default renderer for acroforms*/
private AcroRenderer formRenderer;
//Option to append the error thrown due to lack of CID jar to page decode report
public static boolean throwMissingCIDError;
private DynamicVectorRenderer customDVR;
ImageHandler customImageHandler;
// ImageHelper images;
private Object customSwingHandle;
private Object customPluginHandle;
private Object userExpressionEngine;
//
final private boolean useXFA=false;
/**/
/**
* needs to be accessed in several locations so declared here
*/
private Javascript javascript;
//custom class for flagging painting
RenderChangeListener customRenderChangeListener;
GlyphTracker customGlyphTracker;
ShapeTracker customShapeTracker;
private boolean alwaysUseXFA;
private Map jpedalActionHandlers;
//
CustomPrintHintingHandler customPrintHintingHandler;
//
ColorHandler customColorHandler;//new ExampleColorHandler();
ErrorTracker customErrorTracker;//new ExampleColorHandler();
private CustomFormPrint customFormPrint;
private CustomMessageHandler customMessageHandler;
//copy for callback
Object swingGUI;
private Enum modeSelected=GUIModes.SWING;
public ExternalHandlers(){}
public ExternalHandlers(final GUIModes mode) {
this.modeSelected=mode;
}
public void addHandlers(final PdfStreamDecoder streamDecoder) {
streamDecoder.setObjectValue(ValueTypes.ImageHandler, customImageHandler);
streamDecoder.setObjectValue(Options.GlyphTracker,customGlyphTracker);
streamDecoder.setObjectValue(Options.ShapeTracker, customShapeTracker);
if(customErrorTracker!=null) {
streamDecoder.setObjectValue(Options.ErrorTracker, customErrorTracker);
}
}
/**
* allows external helper classes to be added to JPedal to alter default functionality -
* not part of the API and should be used in conjunction with IDRsolutions only
*
if Options.FormsActionHandler is the type then the newHandler should be
* of the form org.jpedal.objects.acroforms.ActionHandler
*
* @param newHandler
* @param type
*/
public void addExternalHandler(final Object newHandler, final int type) {
switch (type) {
case Options.AdditionalHandler:
additionalHandler=(AdditonalHandler) newHandler;
break;
case Options.USE_XFA_IN_LEGACY_MODE:
//
break;
case Options.USE_XFA:
//
break;
case Options.PluginHandler:
customPluginHandle = newHandler;
break;
case Options.MultiPageUpdate:
customSwingHandle = newHandler;
break;
case Options.ErrorTracker:
customErrorTracker = (ErrorTracker) newHandler;
break;
case Options.ExpressionEngine:
userExpressionEngine = newHandler;
break;
// case Options.LinkHandler:
//
// if (formRenderer != null)
// formRenderer.resetHandler(newHandler, this,Options.LinkHandler);
//
// break;
case Options.FormFactory:
userFormFactory=((FormFactory) newHandler);
break;
case Options.GUIContainer:
swingGUI = newHandler;
break;
case Options.ImageHandler:
customImageHandler = (ImageHandler) newHandler;
break;
case Options.ColorHandler:
customColorHandler = (ColorHandler) newHandler;
break;
case Options.GlyphTracker:
customGlyphTracker = (GlyphTracker) newHandler;
break;
case Options.ShapeTracker:
customShapeTracker = (ShapeTracker) newHandler;
break;
// case Options.Renderer:
// //cast and assign here
// break;
// case Options.FormFactory:
// formRenderer.setFormFactory((FormFactory) newHandler);
// break;
//
// case Options.MultiPageUpdate:
// customSwingHandle = newHandler;
// break;
//
case Options.CustomFormPrint:
customFormPrint=(CustomFormPrint)newHandler;
break;
// case Options.ImageLibrary:
// images= (ImageHelper) newHandler;
// break;
// case Options.ExpressionEngine:
//
// userExpressionEngine = newHandler;
//
// if (Javascript.debugActionHandler)
// System.out.println("User expression engine set to " + userExpressionEngine + ' ' + newHandler);
//
// setJavascript();
// break;
//
// case Options.LinkHandler:
//
// if (formRenderer != null)
// formRenderer.resetHandler(newHandler, this,Options.LinkHandler);
//
// break;
//
// case Options.FormsActionHandler:
//
// if (formRenderer != null)
// formRenderer.resetHandler(newHandler, this,Options.FormsActionHandler);
//
// break;
//
//
case Options.JPedalActionHandler:
jpedalActionHandlers = (Map) newHandler;
break;
case Options.CustomMessageOutput:
customMessageHandler = (CustomMessageHandler) newHandler;
break;
//
case Options.RenderChangeListener:
customRenderChangeListener = (RenderChangeListener) newHandler;
break;
case Options.CustomPrintHintingHandler:
customPrintHintingHandler = (CustomPrintHintingHandler) newHandler;
break;
//
case Options.CustomOutput:
customDVR = (DynamicVectorRenderer) newHandler;
break;
default:
if(additionalHandler!=null){
additionalHandler.addExternalHandler(newHandler,type);
}else{
throw new IllegalArgumentException("Unknown type="+type);
}
}
}
/**
* allows external helper classes to be accessed if needed - also allows user to access SwingGUI if running
* full Viewer package - not all Options available to get - please contact IDRsolutions if you are looking to
* use
*
* @param type
*/
public Object getExternalHandler(final int type) {
switch (type) {
case Options.FormFactory:
return formRenderer.getFormFactory();
case Options.MultiPageUpdate:
return customSwingHandle;
case Options.PluginHandler:
return customPluginHandle;
case Options.ExpressionEngine:
return userExpressionEngine;
case Options.ErrorTracker:
return customErrorTracker;
case Options.ImageHandler:
return customImageHandler;
case Options.ColorHandler:
return customColorHandler;
case Options.GlyphTracker:
return customGlyphTracker;
//
case Options.CustomPrintHintingHandler:
return customPrintHintingHandler;
//
case Options.ShapeTracker:
return customShapeTracker;
case Options.CustomFormPrint:
return customFormPrint;
// case Options.ImageLibrary:
// return images;
case Options.GUIContainer:
return swingGUI;
// case Options.Renderer:
// return null;
//
// case Options.FormFactory:
// return formRenderer.getFormFactory();
//
// case Options.MultiPageUpdate:
// return customSwingHandle;
//
// case Options.ExpressionEngine:
// return userExpressionEngine;
//
case Options.JPedalActionHandler:
return jpedalActionHandlers;
case Options.CustomMessageOutput:
return customMessageHandler;
// case Options.Display:
// return pages;
//
// case Options.CurrentOffset:
// return currentOffset;
//
case Options.CustomOutput:
return customDVR;
case Options.RenderChangeListener:
return customRenderChangeListener;
case Options.JPedalActionHandlers:
return jpedalActionHandlers;
default:
if(type==Options.UniqueAnnotationHandler){
return null;
}else if(additionalHandler!=null){
return additionalHandler.getExternalHandler(type);
}else {
throw new IllegalArgumentException("Unknown type " + type);
}
}
}
/**
* Allow user to access javascript object if needed
*/
public Javascript getJavaScript() {
return javascript;
}
public FormFactory getUserFormFactory() {
return userFormFactory;
}
public void dispose() {
if(javascript!=null) {
javascript.dispose();
}
javascript=null;
//dispose the javascript object before the formRenderer object as JS accesses the renderer object
if(formRenderer!=null) {
formRenderer.dispose();
}
formRenderer=null;
}
/**
* Allow user to access Forms renderer object if needed
*/
public AcroRenderer getFormRenderer() {
return formRenderer;
}
public void setJavaScript(final Javascript javascript) {
this.javascript=javascript;
}
//
public void openPdfFile(final Object userExpressionEngine, final boolean useJavaFX) {
formRenderer = new AcroRenderer(useXFA,useJavaFX);
formRenderer.alwaysuseXFA(alwaysUseXFA);
final FormFactory userFormFactory= this.userFormFactory;
if(userFormFactory!=null) {
formRenderer.setFormFactory(userFormFactory);
}
/**
* setup Javascript object and pass into objects which use it
*/
javascript=new Javascript((ExpressionEngine) userExpressionEngine,formRenderer, swingGUI);
}
/**
* show if we are Swing or JavaFX (Enums in GUIModes)
*/
public void setMode(final Enum mode) {
modeSelected=mode;
}
/**
* show if we are Swing or JavaFX (Enum in GUIModes)
* @return
*/
public Enum getMode() {
return modeSelected;
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy