source: trunk/src/org/expeditee/importer/ImageImporter.java@ 1102

/**
 *    ImageImporter.java
 *    Copyright (C) 2010 New Zealand Digital Library, http://expeditee.org
 *
 *    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 3 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/>.
 */

package org.expeditee.importer;

import java.io.File;
import java.io.IOException;
import java.util.Collection;
import java.util.HashSet;

import org.expeditee.core.Colour;
import org.expeditee.core.Point;
import org.expeditee.core.bounds.AxisAlignedBoxBounds;
import org.expeditee.gio.DragAndDropManager;
import org.expeditee.gio.gesture.StandardGestureActions;
import org.expeditee.gui.DisplayController;
import org.expeditee.gui.FrameUtils;
import org.expeditee.items.Item;
import org.expeditee.items.Text;
import org.expeditee.items.XRayable;

public class ImageImporter implements FileImporter {

        private static Collection<String> validImageTypes = null;

        public ImageImporter() {
                super();
                if (validImageTypes == null) {
                        validImageTypes = new HashSet<String>();
                        validImageTypes.add("png");
                        validImageTypes.add("bmp");
                        validImageTypes.add("jpg");
                        validImageTypes.add("jpeg");
                }
        }

        public Item importFile(File f, Point location) throws IOException {

                if (location == null || f == null) {
                        return null;
                }
                String fullPath = f.getAbsolutePath();
                int separator = fullPath.lastIndexOf('.');
                if (separator < 0)
                        return null;
                String suffix = fullPath.substring(separator + 1).toLowerCase();

                if (!validImageTypes.contains(suffix)) {
                        return null;
                }

                Colour borderColor = null;
                float thickness = 0;
                String size = "";
                Collection<Item> enclosure = FrameUtils.getEnclosingLineEnds(location);
                if (enclosure != null) {
                        for (Item i : enclosure) {
                                if (i.isLineEnd() && i.isEnclosed()) {
                                        DisplayController.getCurrentFrame().removeAllItems(enclosure);
                                        AxisAlignedBoxBounds rect = i.getEnclosedBox();
                                        size = " " + Math.round(rect.getWidth());
                                        location = new Point(rect.getMinX(), rect.getMinY());
                                        thickness = i.getThickness();
                                        borderColor = i.getColor();
                                        break;
                                }
                        }
                        StandardGestureActions.deleteItems(enclosure, false);
                }

                Text source = DragAndDropManager.importString("@i: " + fullPath + size, location);
                source.setThickness(thickness);
                source.setBorderColor(borderColor);

                StandardGestureActions.Refresh();
                Collection<? extends XRayable> pictures = source.getEnclosures();
                if (pictures.size() == 0)
                        return source;

                return source.getEnclosures().iterator().next();
        }
}