org.jpedal.utils.DPIFactory Maven / Gradle / Ivy
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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
*
* ---------------
* DPIFactory.java
* ---------------
*/
package org.jpedal.utils;
public class DPIFactory {
// Current DPI value, Java is 72 by default
private float dpi = 72f;
/**
* Corrects the image scaling to take into account the user specified DPI value
*
* @param scaling
* :: Raw scaling value before DPI is applied (DPI of 72 is default)
* @return Corrected scaling in the form of a float
*/
public float adjustScaling(float scaling) {
return scaling * (this.dpi / 72f);
}
/**
* Corrects the image scaling to take into account the user specified DPI value
*
* @param scaling
* :: Raw scaling value before DPI is applied (DPI of 72 is default)
* @return Corrected scaling in the form of a float
*/
public float removeScaling(float scaling) {
return scaling / (this.dpi / 72f);
}
/**
* Get the current value of the user defined DPI (default = 72)
*
* @return :: The current DPI value as a float
*/
public float getDpi() {
return this.dpi;
}
/**
* Sets the current DPI to the input value dpi
*
* @param dpi
* :: The new dpi value expressed as a float
*/
public void setDpi(float dpi) {
this.dpi = dpi;
}
}