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/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/java-pdf-library-support/
*
* (C) Copyright 1997-2013, IDRsolutions and Contributors.
*
* This file is part of JPedal
*
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
*
* ---------------
* ImageHandler.java
* ---------------
*/
package org.jpedal.external;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import org.jpedal.io.ObjectStore;
import org.jpedal.objects.GraphicsState;
import org.jpedal.objects.raw.PdfObject;
public interface ImageHandler {
// tell JPedal if it ignores its own Image code or not
public boolean alwaysIgnoreGenericHandler();
// pass in raw data for image handling - if valid image returned it will be used.
// if alwaysIgnoreGenericHandler() is true JPedal code always ignored. If false, JPedal code used if null
public BufferedImage processImageData(GraphicsState gs, PdfObject XObject);
/** Indicate that image already scaled so should not be scaled/clipped by JPedal */
public boolean imageHasBeenScaled();
/**
* Allow user to paint directly onto g2 for screen display
*
* @param image
* - actual BufferedImage
* @param optionsApplied
* - any options already done (ie 90 rotate) - values from org.jpedal.constants.PDFImageProcessing
* @param upside_down
* - AffineTransform applied to page
* @param currentImageFile
* - name of file stored on disk
* @param g2
* - Graphics2D render object
* @param renderDirect
* -if being rendered straight to g2 (ie bufferedImage)
* @param objectStore
* - JPedals class to access cached images
* @param isPrinting
* @return true to ignore standard JPedal routines and false to use.
*/
boolean drawImageOnscreen(BufferedImage image, int optionsApplied, AffineTransform upside_down, String currentImageFile, Graphics2D g2,
boolean renderDirect, ObjectStore objectStore, boolean isPrinting);
}