scale To Paper for print - Java 2D Graphics

Java examples for 2D Graphics:Print

  1. HOME
  2. Java
  3. 2D Graphics
  4. Print

Description

scale To Paper for print

Demo Code

/*//from   ww w.  jav  a  2s.  c o  m
 *   Copyright (C) 2006  The Concord Consortium, Inc.,
 *   25 Love Lane, Concord, MA 01742
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * END LICENSE */
//package com.java2s;
import java.awt.Dimension;
import java.awt.print.PageFormat;
import java.awt.print.Paper;

public class Main {
    /**
     * @param orientation
     *            the orientation of the paper
     * @param paper
     *            a piece of paper
     * @param d
     *            the actual dimension of the document to be printed
     * @return the rescaled dimension that fits the imageable size of the paper but keeps the ratio of width to length
     *         of the input dimension object
     */
    public static Dimension scaleToPaper(int orientation, Paper paper,
            Dimension d) {

        float wp = (float) paper.getImageableWidth();
        float hp = (float) paper.getImageableHeight();
        float w = d.width;
        float h = d.height;

        int w1 = (int) w, h1 = (int) h;

        float rw = 1.0f;
        float rh = 1.0f;

        if (orientation == PageFormat.PORTRAIT) {
            rw = w / wp;
            rh = h / hp;
        } else if (orientation == PageFormat.LANDSCAPE
                || orientation == PageFormat.REVERSE_LANDSCAPE) {
            rw = w / hp;
            rh = h / wp;
        }

        boolean out = false;

        if (rw > 1.0f && rh > 1.0f) {
            out = true;
        } else if (rw > 1.0f && rh < 1.0f) {
            out = true;
        } else if (rw < 1.0f && rh > 1.0f) {
            out = true;
        }

        if (out) {
            float rmax = 1.0f / Math.max(rw, rh);
            w1 = (int) (w * rmax);
            h1 = (int) (h * rmax);
        }

        return new Dimension(w1, h1);

    }
}

Related Tutorials