org.jpedal.display.Overlays Maven / Gradle / Ivy
/*
* ===========================================
* 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
*
* ---------------
* Overlays.java
* ---------------
*/
package org.jpedal.display;
import org.jpedal.exception.PdfException;
import org.jpedal.render.DynamicVectorRenderer;
import java.awt.*;
import java.util.HashMap;
import java.util.Map;
@SuppressWarnings("UnusedDeclaration")
public class Overlays {
private final Map overlayType = new HashMap();
private final Map overlayColors = new HashMap();
private final Map overlayObj = new HashMap();
private final Map overlayTypeG = new HashMap();
private final Map overlayColorsG = new HashMap();
private final Map overlayObjG = new HashMap();
public void printAdditionalObjectsOverPage(final int page, final int[] type, final Color[] colors, final Object[] obj) throws PdfException {
final Integer key = page;
if (obj == null) { //flush page
overlayType.remove(key);
overlayColors.remove(key);
overlayObj.remove(key);
} else { //store for printing and add if items already there
final int[] oldType = (int[]) overlayType.get(key);
if (oldType == null){
overlayType.put(key, type);
}else { //merge items
final int oldLength = oldType.length;
final int newLength = type.length;
final int[] combined = new int[oldLength + newLength];
System.arraycopy(oldType, 0, combined, 0, oldLength);
System.arraycopy(type, 0, combined, oldLength, newLength);
overlayType.put(key, combined);
}
final Color[] oldCol = (Color[]) overlayColors.get(key);
if (oldCol == null) {
overlayColors.put(key, colors);
} else { //merge items
final int oldLength = oldCol.length;
final int newLength = colors.length;
final Color[] combined = new Color[oldLength + newLength];
System.arraycopy(oldCol, 0, combined, 0, oldLength);
System.arraycopy(colors, 0, combined, oldLength, newLength);
overlayColors.put(key, combined);
}
final Object[] oldObj = (Object[]) overlayObj.get(key);
if (oldType == null) {
overlayObj.put(key, obj);
} else { //merge items
final int oldLength = oldObj.length;
final int newLength = obj.length;
final Object[] combined = new Object[oldLength + newLength];
System.arraycopy(oldObj, 0, combined, 0, oldLength);
System.arraycopy(obj, 0, combined, oldLength, newLength);
overlayObj.put(key, combined);
}
}
}
public void printAdditionalObjectsOverAllPages(final int[] type, final Color[] colors, final Object[] obj) throws PdfException {
final Integer key = -1;
if (obj == null) { //flush page
overlayTypeG.remove(key);
overlayColorsG.remove(key);
overlayObjG.remove(key);
} else { //store for printing and add if items already there
final int[] oldType = (int[]) overlayTypeG.get(key);
if (oldType == null){
overlayTypeG.put(key, type);
}else { //merge items
final int oldLength = oldType.length;
final int newLength = type.length;
final int[] combined = new int[oldLength + newLength];
System.arraycopy(oldType, 0, combined, 0, oldLength);
System.arraycopy(type, 0, combined, oldLength, newLength);
overlayTypeG.put(key, combined);
}
final Color[] oldCol = (Color[]) overlayColorsG.get(key);
if (oldCol == null) {
overlayColorsG.put(key, colors);
} else { //merge items
final int oldLength = oldCol.length;
final int newLength = colors.length;
final Color[] combined = new Color[oldLength + newLength];
System.arraycopy(oldCol, 0, combined, 0, oldLength);
System.arraycopy(colors, 0, combined, oldLength, newLength);
overlayColorsG.put(key, combined);
}
final Object[] oldObj = (Object[]) overlayObjG.get(key);
if (oldType == null) {
overlayObjG.put(key, obj);
} else { //merge items
final int oldLength = oldObj.length;
final int newLength = obj.length;
final Object[] combined = new Object[oldLength + newLength];
System.arraycopy(oldObj, 0, combined, 0, oldLength);
System.arraycopy(obj, 0, combined, oldLength, newLength);
overlayObjG.put(key, combined);
}
}
}
public void clear() {
//flush arrays
overlayType.clear();
overlayColors.clear();
overlayObj.clear();
//flush arrays
overlayTypeG.clear();
overlayColorsG.clear();
overlayObjG.clear();
}
public void printOverlays(final DynamicVectorRenderer dvr, final int page) throws PdfException {
//store for printing (global first)
final Integer keyG = -1;
final int[] typeG = (int[]) overlayTypeG.get(keyG);
final Color[] colorsG = (Color[]) overlayColorsG.get(keyG);
final Object[] objG = (Object[]) overlayObjG.get(keyG);
//add to screen display
dvr.drawAdditionalObjectsOverPage(typeG, colorsG, objG);
//store for printing
final Integer key = page;
final int[] type = (int[]) overlayType.get(key);
final Color[] colors = (Color[]) overlayColors.get(key);
final Object[] obj = (Object[]) overlayObj.get(key);
//add to screen display
dvr.drawAdditionalObjectsOverPage(type, colors, obj);
}
}
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