[919] | 1 | /**
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| 2 | * pdfImporter.java
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| 3 | * Copyright (C) 2010 New Zealand Digital Library, http://expeditee.org
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| 4 | *
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| 5 | * This program is free software: you can redistribute it and/or modify
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| 6 | * it under the terms of the GNU General Public License as published by
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| 7 | * the Free Software Foundation, either version 3 of the License, or
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| 8 | * (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 17 | */
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| 18 |
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[504] | 19 | package org.expeditee.importer;
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| 20 |
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| 21 | import java.io.File;
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| 22 | import java.io.IOException;
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| 23 | import java.io.RandomAccessFile;
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| 24 | import java.nio.ByteBuffer;
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| 25 | import java.nio.channels.FileChannel;
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[1436] | 26 | import java.nio.file.Path;
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| 27 | import java.nio.file.Paths;
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[504] | 28 |
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[1102] | 29 | import org.expeditee.core.Colour;
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| 30 | import org.expeditee.core.Image;
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| 31 | import org.expeditee.core.Point;
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| 32 | import org.expeditee.gio.DragAndDropManager;
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| 33 | import org.expeditee.gio.EcosystemManager;
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| 34 | import org.expeditee.gio.GraphicsManager;
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| 35 | import org.expeditee.gui.DisplayController;
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[504] | 36 | import org.expeditee.gui.Frame;
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| 37 | import org.expeditee.gui.FrameCreator;
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| 38 | import org.expeditee.gui.FrameGraphics;
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| 39 | import org.expeditee.gui.FrameIO;
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| 40 | import org.expeditee.gui.MessageBay;
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[1436] | 41 | import org.expeditee.gui.management.ResourceManager;
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[504] | 42 | import org.expeditee.items.Item;
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| 43 | import org.expeditee.items.Text;
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| 44 |
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| 45 | import com.sun.pdfview.PDFFile;
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| 46 | import com.sun.pdfview.PDFPage;
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| 47 |
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| 48 | public class pdfImporter implements FileImporter {
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| 49 |
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[1436] | 50 | public Item importFile(final File f, Point location, boolean attachToFreeItems) throws IOException {
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[504] | 51 | if (location == null || f == null) {
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| 52 | return null;
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| 53 | }
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| 54 |
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| 55 | final int x = 0;
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| 56 | final int y = 60;
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[1102] | 57 | final int width = EcosystemManager.getGraphicsManager().getWindowSize().width;
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[504] | 58 | System.out.println(width);
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| 59 |
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| 60 | final String name = FrameIO.ConvertToValidFramesetName(f.getName().substring(0,f.getName().lastIndexOf('.'))).toLowerCase();
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| 61 |
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| 62 | //check if the file is a pdf
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| 63 | if(!f.getAbsolutePath().substring(f.getAbsolutePath().lastIndexOf('.')+1).toLowerCase().equals("pdf"))
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| 64 | {
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| 65 | return null;
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| 66 | }
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| 67 |
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[1436] | 68 | final Text link = DragAndDropManager.importString(name, location, false);
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[504] | 69 | link.setLink(name+"1");
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| 70 |
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| 71 | final Frame frameset;
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| 72 | try
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| 73 | {
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| 74 | frameset = FrameIO.CreateNewFrameset(name);
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| 75 | }
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| 76 | catch(Exception e)
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| 77 | {
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| 78 | MessageBay.displayMessage("Frameset \"" + name + "\" already exists, creating a link to it");
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| 79 | return link;//if the frameset exists just make a link to the existing frameset
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| 80 | }
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| 81 |
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[1242] | 82 | final String framesetPath = frameset.getFramesetPath();
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[504] | 83 |
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| 84 | System.out.println("PATH = " + framesetPath);
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| 85 |
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| 86 | new Thread() {
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| 87 | public void run() {
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| 88 | try {
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| 89 | MessageBay.displayMessage("Importing " + f.getName() + "...");
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| 90 | //load a pdf from a byte buffer
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| 91 | RandomAccessFile raf = new RandomAccessFile(f, "r");
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| 92 | FileChannel channel = raf.getChannel();
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| 93 | ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
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| 94 | PDFFile pdffile = new PDFFile(buf);
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| 95 | int pages = pdffile.getNumPages();
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| 96 |
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| 97 | Frame currentFrame=frameset;
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| 98 | Frame _currentFrame=null;
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| 99 | Text nextButton=null, prevButton=null;
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[1102] | 100 | final int spacing=((Text)FrameCreator.createButton("Next", null, null, 10, 10)).getBoundsWidth() + 30;
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[504] | 101 |
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| 102 | //make images from the pdf pages, write frames with those images
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| 103 | for(int i=1; i<=pages; i++)
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| 104 | {
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| 105 | //remove the title from the frame
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| 106 | /* if(FrameDNDTransferHandler.modifier!=1 &&
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| 107 | currentFrame!=null &&
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| 108 | currentFrame.getTitleItem()!=null)
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| 109 | ((Text)currentFrame.getTitleItem()).delete(); */
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| 110 | //get the pdf page
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| 111 | PDFPage page = pdffile.getPage(i);
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| 112 | //get the width and height for the page
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| 113 | int w=(int)page.getBBox().getWidth(), h=(int)page.getBBox().getHeight();
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| 114 | final double res=1080;
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| 115 | if(w<res || h<res)
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| 116 | {
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| 117 | double ws=res/w;
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| 118 | double hs=res/h;
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| 119 | if(ws>hs)
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| 120 | {
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| 121 | w*=ws;
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| 122 | h*=ws;
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| 123 | }
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| 124 | else
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| 125 | {
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| 126 | w*=hs;
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| 127 | h*=hs;
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| 128 | }
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| 129 | }
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| 130 | //generate the image
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[1102] | 131 | Image img = Image.createImage(w, h, page);
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[504] | 132 | //Create a buffered image to store the image in
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[1102] | 133 | Image bimg = Image.createImage(img.getWidth(), img.getHeight(), false);
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| 134 | GraphicsManager g = EcosystemManager.getGraphicsManager();
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[504] | 135 | //Paint the image onto the buffered image
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[1102] | 136 | g.pushDrawingSurface(bimg);
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| 137 | g.drawImage(img, new Point(0, 0));
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| 138 | g.popDrawingSurface();
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[504] | 139 | //save it as a file
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[1436] | 140 | Path p = Paths.get(framesetPath+i+".png");
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| 141 | p = ResourceManager.relativiseImagePath(p, DisplayController.getCurrentFrame());
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| 142 | File out = p.toFile();
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[1102] | 143 | bimg.writeToDisk("png", out);
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[504] | 144 | //generate a frame with that image
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| 145 | System.out.println(width);
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[1436] | 146 | System.out.println("@i: "+p.toString()+width);
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| 147 | currentFrame.addText(x, y, "@i: "+p.toString()+width, null);
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[504] | 148 | if(i>1)
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| 149 | {
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| 150 | //put a next button on the previous frame (points to current frame)
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[1102] | 151 | nextButton=(Text)FrameCreator.createButton("Next", null, null, 10, 10);
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[504] | 152 | nextButton.setID(_currentFrame.getNextItemID());
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| 153 | nextButton.addAction("next");
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| 154 | _currentFrame.addItem(nextButton);
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| 155 | //put a previous button on the current frame (points to previous frame)
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[1102] | 156 | prevButton=(Text)FrameCreator.createButton("Prev", null, null, (i<pages)?spacing:10, 10);
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[504] | 157 | prevButton.setID(currentFrame.getNextItemID());
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| 158 | prevButton.addAction("previous");
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| 159 | currentFrame.addItem(prevButton);
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| 160 | }
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| 161 | else
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| 162 | {
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[1102] | 163 | prevButton=(Text)FrameCreator.createButton("Home", null, null, (i<pages)?spacing:10, 10);
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[504] | 164 | prevButton.setID(currentFrame.getNextItemID());
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| 165 | prevButton.addAction("GotoHome");
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| 166 | currentFrame.addItem(prevButton);
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| 167 | }
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| 168 | FrameIO.SaveFrame(_currentFrame,true);
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| 169 | _currentFrame=currentFrame;
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| 170 | if(i<pages) currentFrame = FrameIO.CreateFrame(frameset.getFramesetName(), name, null);
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| 171 | }
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[1102] | 172 | prevButton=(Text)FrameCreator.createButton("Home", null, null, spacing, 10);
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[504] | 173 | prevButton.setID(currentFrame.getNextItemID());
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| 174 | prevButton.addAction("gotohome");
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| 175 | currentFrame.addItem(prevButton);
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| 176 | FrameIO.SaveFrame(currentFrame,true);
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[1102] | 177 | MessageBay.displayMessage(f.getName() + " import complete", Colour.GREEN);
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| 178 | DisplayController.requestRefresh(true);
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[504] | 179 | } catch (Exception e) {
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| 180 | e.printStackTrace();
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| 181 | MessageBay.errorMessage(e.getMessage());
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| 182 | }
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| 183 | }
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| 184 | }.start();
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[1102] | 185 | DisplayController.requestRefresh(true);
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[504] | 186 | //return source;
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| 187 | return link;
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| 188 | }
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| 189 | }
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