org.freeplane.view.swing.map.ClickableImageCreator.java Source code

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Here is the source code for org.freeplane.view.swing.map.ClickableImageCreator.java

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/*
 *  Freeplane - mind map editor
 *  Copyright (C) 2008 Joerg Mueller, Daniel Polansky, Christian Foltin, Dimitry Polivaev
 *
 *  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/>.
 */
package org.freeplane.view.swing.map;

import java.awt.Point;
import java.awt.Rectangle;
import java.util.Vector;

import javax.swing.JComponent;

import org.apache.commons.lang.StringEscapeUtils;
import org.freeplane.features.map.NodeModel;
import org.freeplane.features.mode.ModeController;
import org.freeplane.features.text.TextController;

/** */
class ClickableImageCreator {
    public static class AreaHolder {
        String alt;
        Rectangle coordinates = new Rectangle();
        String href;
        String shape = "rect";
        String title;
    }

    Vector<AreaHolder> area = new Vector<AreaHolder>();
    private Rectangle innerBounds;
    final private MapView mapView;
    final private String regExpLinkReplacement;
    final private NodeModel root;

    /**
     * @param regExpLinkReplacement
     *            if for example the link abc must be replaced with FMabcFM,
     *            then this string has to be FM$1FM.
     */
    ClickableImageCreator(final NodeModel root, final ModeController modeController,
            final String regExpLinkReplacement) {
        super();
        this.root = root;
        this.regExpLinkReplacement = regExpLinkReplacement;
        mapView = ((MapView) modeController.getController().getMapViewManager().getMapViewComponent());
        if (mapView != null) {
            innerBounds = mapView.getInnerBounds();
        } else {
            innerBounds = new Rectangle(0, 0, 100, 100);
        }
        //      this.modeController = modeController;
        createArea();
    }

    private void createArea() {
        createArea(root);
    }

    private void createArea(final NodeModel node) {
        final NodeView nodeView = mapView.getNodeView(node);
        if (nodeView != null) {
            final AreaHolder holder = new AreaHolder();
            holder.title = TextController.getController().getShortText(node);
            holder.alt = TextController.getController().getShortText(node);
            holder.href = node.createID();
            final Point contentXY = mapView.getNodeContentLocation(nodeView);
            final JComponent content = nodeView.getContent();
            holder.coordinates.x = (int) (contentXY.x - innerBounds.getMinX());
            holder.coordinates.y = (int) (contentXY.y - innerBounds.getMinY());
            holder.coordinates.width = content.getWidth();
            holder.coordinates.height = content.getHeight();
            area.add(holder);
            for (final NodeModel child : mapView.getModeController().getMapController().childrenUnfolded(node)) {
                createArea(child);
            }
        }
    }

    public String generateHtml() {
        final StringBuilder htmlArea = new StringBuilder();
        for (final AreaHolder holder : area) {
            htmlArea.append("<area shape=\"" + holder.shape + "\" href=\"#"
                    + holder.href.replaceFirst("^(.*)$", regExpLinkReplacement) + "\" alt=\""
                    + StringEscapeUtils.escapeHtml(holder.alt) + "\" title=\""
                    + StringEscapeUtils.escapeHtml(holder.title) + "\" coords=\"" + holder.coordinates.x + ","
                    + holder.coordinates.y + "," + (holder.coordinates.width + holder.coordinates.x) + ","
                    + +(holder.coordinates.height + holder.coordinates.y) + "\" />");
        }
        return htmlArea.toString();
    }
}