com.softwaremagico.tm.pdf.complete.events.SheetAlternatedBackgroundEvent.java Source code

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Here is the source code for com.softwaremagico.tm.pdf.complete.events.SheetAlternatedBackgroundEvent.java

Source

package com.softwaremagico.tm.pdf.complete.events;

/*-
 * #%L
 * Think Machine (Core)
 * %%
 * Copyright (C) 2017 Softwaremagico
 * %%
 * This software is designed by Jorge Hortelano Otero. Jorge Hortelano Otero
 * <softwaremagico@gmail.com> Valencia (Spain).
 *  
 * 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, see <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import java.io.IOException;

import com.itextpdf.text.BadElementException;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Image;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfWriter;
import com.softwaremagico.tm.log.PdfExporterLog;
import com.softwaremagico.tm.pdf.complete.FadingSunsTheme;

public class SheetAlternatedBackgroundEvent extends PdfPageEventHelper {
    private final static int IMAGE_HEIGHT = 100;
    private final static int IMAGE_WIDTH = 125;
    private final static int IMAGE_BORDER = 10;
    private final static int IMAGE_TOP_BORDER = 13;

    private final static int BAR_HEIGHT = 17;

    private Image rightCorner, leftCorner, mainTitleRight, mainTitleLeft;

    @Override
    public void onOpenDocument(PdfWriter writer, Document document) {
        try {
            rightCorner = Image.getInstance(
                    SheetAlternatedBackgroundEvent.class.getResource("/" + FadingSunsTheme.RIGHT_CORNER_IMAGE));
            rightCorner.setAbsolutePosition(document.getPageSize().getWidth() - IMAGE_WIDTH,
                    document.getPageSize().getHeight() - IMAGE_HEIGHT - IMAGE_TOP_BORDER);
            rightCorner.scaleToFit(IMAGE_WIDTH, IMAGE_HEIGHT);
        } catch (BadElementException | IOException e) {
            PdfExporterLog.errorMessage(this.getClass().getName(), e);
        }

        try {
            leftCorner = Image.getInstance(
                    SheetAlternatedBackgroundEvent.class.getResource("/" + FadingSunsTheme.LEFT_CORNER_IMAGE));
            // leftCorner.setAbsolutePosition(IMAGE_BORDER,
            // document.getPageSize().getHeight() - IMAGE_HEIGHT -
            // IMAGE_BORDER);
            leftCorner.setAbsolutePosition(IMAGE_BORDER,
                    document.getPageSize().getHeight() - IMAGE_HEIGHT - IMAGE_TOP_BORDER);
            leftCorner.scaleToFit(IMAGE_WIDTH, IMAGE_HEIGHT);
        } catch (BadElementException | IOException e) {
            PdfExporterLog.errorMessage(this.getClass().getName(), e);
        }

        try {
            mainTitleRight = Image.getInstance(
                    SheetAlternatedBackgroundEvent.class.getResource("/" + FadingSunsTheme.MAIN_TITLE_IMAGE));
            // leftCorner.setAbsolutePosition(IMAGE_BORDER,
            // document.getPageSize().getHeight() - IMAGE_HEIGHT -
            // IMAGE_BORDER);
            float barWidth = document.getPageSize().getWidth() - IMAGE_WIDTH - IMAGE_BORDER * 2;
            mainTitleRight.setAbsolutePosition(IMAGE_HEIGHT + IMAGE_BORDER * 2 + 3,
                    document.getPageSize().getHeight() - BAR_HEIGHT - IMAGE_TOP_BORDER - 2);
            mainTitleRight.scaleAbsolute(barWidth, BAR_HEIGHT);
        } catch (BadElementException | IOException e) {
            PdfExporterLog.errorMessage(this.getClass().getName(), e);
        }

        try {
            mainTitleLeft = Image.getInstance(
                    SheetAlternatedBackgroundEvent.class.getResource("/" + FadingSunsTheme.MAIN_TITLE_IMAGE));
            // leftCorner.setAbsolutePosition(IMAGE_BORDER,
            // document.getPageSize().getHeight() - IMAGE_HEIGHT -
            // IMAGE_BORDER);
            float barWidth = document.getPageSize().getWidth() - IMAGE_WIDTH - IMAGE_BORDER * 2;
            mainTitleLeft.setAbsolutePosition(IMAGE_BORDER * 2 + 3,
                    document.getPageSize().getHeight() - BAR_HEIGHT - IMAGE_TOP_BORDER - 2);
            mainTitleLeft.scaleAbsolute(barWidth, BAR_HEIGHT);
        } catch (BadElementException | IOException e) {
            PdfExporterLog.errorMessage(this.getClass().getName(), e);
        }

    }

    @Override
    public void onEndPage(PdfWriter writer, Document document) {
        try {
            if (writer.getPageNumber() % 2 == 1) {
                writer.getDirectContent().addImage(leftCorner);
                writer.getDirectContent().addImage(mainTitleRight);
            }
            if (writer.getPageNumber() % 2 == 0) {
                writer.getDirectContent().addImage(rightCorner);
                writer.getDirectContent().addImage(mainTitleLeft);
            }
        } catch (DocumentException e) {
            PdfExporterLog.errorMessage(this.getClass().getName(), e);
        }
    }
}