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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
*
* ---------------
* FormsCSSHelper.java
* ---------------
*/
package org.jpedal.objects.acroforms.utils;
import java.awt.Color;
import java.awt.Rectangle;
import org.jpedal.objects.PdfPageData;
import org.jpedal.objects.acroforms.GUIData;
import org.jpedal.objects.raw.FormObject;
import org.jpedal.objects.raw.PdfDictionary;
import org.jpedal.objects.raw.PdfObject;
import org.jpedal.render.output.FontMapper;
import org.jpedal.render.output.GenericFontMapper;
/**
* Methods to create attribute values to share between JavaFX and CSS
*
* @author Simon
*/
public class FormsCSSHelper {
/**
* Gets text color as RGB
* @param object
* @return int[]{R,G,B}
*/
public static int[] getTextColor(final FormObject object){
final int[] rgb;
if(object != null){
rgb = getColor(object.getTextColor());
}else{
rgb=null;
}
return rgb;
}
/**
* Gets background color as RGB
* @param object
* @return int[]{R,G,B}
*/
public static int[] getBackgroundColor(final FormObject object){
final int[] rgb;
if(object != null){
rgb = getColor(FormObject.generateColor(object.getDictionary(PdfDictionary.MK).getFloatArray(PdfDictionary.BG)));
}else{
rgb=null;
}
return rgb;
}
/**
* Gets border color as RGB
* @param object
* @return int[]{R,G,B}
*/
public static int[] getBorderColor(final FormObject object){
final int[] rgb;
if(object != null){
rgb = getColor(FormObject.generateColor(object.getDictionary(PdfDictionary.MK).getFloatArray(PdfDictionary.BC)));
}else{
rgb=null;
}
return rgb;
}
public static int getBorderWidth(final FormObject object){
final PdfObject BS = object.getDictionary(PdfDictionary.BS);
int w=-1;
if(BS!=null) {
w = BS.getInt(PdfDictionary.W);
}
if(w<0) {
w = 1;
}
return w;
}
private static int[] getColor(final Color color){
final int[] rgb;
if(color != null){
final int col=color.getRGB();
final int r=(col>>16) & 255;
final int g=(col>>8) & 255;
final int b=col & 255;
rgb = new int[]{r,g,b};
}else{
rgb=null;
}
return rgb;
}
/**
* Sets up the font CSS value as "[Weight] [Size] [family]"
* @param formObject
* @param area
* @param isMultiLine
* @param pageData
* @param pageNum
* @param scaling
* @return
*/
public static String addFont(final FormObject formObject, final boolean area, final boolean isMultiLine, final PdfPageData pageData, final int pageNum, final float scaling){
final String fontString;
final FontMapper fontMapper=new GenericFontMapper(formObject.getFontName());
final String font=fontMapper.getFont();
final String weight =fontMapper.getWeight();
float size = formObject.getTextSize();
if(size==0 || size==-1){
final Rectangle pos = formObject.getBoundingRectangle();
if(isMultiLine){
size=12;
//rows= (int) (pos.height/size);
// System.out.println(rows+" "+pos.height);
}else{
final int rotation = pageData.getRotation(pageNum);
if(rotation == 90 || rotation==270){
size = GUIData.calculateFontSize(pos.width,pos.height, area, formObject.getTextStreamValue(PdfDictionary.V));
}else{
size = GUIData.calculateFontSize(pos.height, pos.width,area, formObject.getTextStreamValue(PdfDictionary.V));
}
}
}
//Removed as it made text smaller than it should be
//if issue with text to large add this back in
//factor in any pge scaling
//float scaling=output.getScaling();///1.33f; //we need to divide by 1.33 to offset scaling on rest
size *= scaling;
fontString = String.format("%s %dpx %s", weight, (int)size, font);
return fontString;
}
}