Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package org.gvsig.labeling.gui.styling.editortools;

import java.awt.Cursor;

import java.awt.Dimension;

import java.awt.Point;

import java.awt.event.MouseEvent;

import javax.swing.AbstractButton;

import javax.swing.ImageIcon;

import javax.swing.JComponent;

import javax.swing.JToggleButton;

import org.gvsig.andami.IconThemeHelper;

import org.gvsig.app.gui.styling.EditorTool;

import org.gvsig.app.gui.styling.StyleEditor;

import org.gvsig.i18n.Messages;

import org.gvsig.labeling.placements.PointLabelPositioner;

/**

 * Implements an editor tool which can be used to select the position for the

 * label when the user is performing a layer of points. There will be 4 different

 * precedence levels for the 8 different places where the text for the specified point

 * will be placed (see PointLabelPositioneer.java). This class implements the highest one,

 * but the user can select a normal, a low or a forbidden one.

 *

 *

 * @author Pepe Vidal Salvador - jose.vidal.salvador@iver.es

 *

 */

public class PointLabelHighPrecedenceTool extends EditorTool {

        protected String buttonIcon = "set-high-precedence";

        protected byte precedenceValue = PointLabelPositioner.PREFERENCE_HIGH;

        private final Cursor cursor = Cursor.getDefaultCursor();

        private JToggleButton btnNewPrecedence;

        private PointLabelPositioner positioneer;

        /**

         * Constructor

         *

         * @param targetEditor

         */

        public PointLabelHighPrecedenceTool(JComponent targetEditor) {

                super(targetEditor);

        }

        /**

         * Implements the button for the tool

         *

         * @return

         */

        private JToggleButton getBtnNewPrecedence() {

                if (btnNewPrecedence == null) {

                        btnNewPrecedence = new JToggleButton();

                        btnNewPrecedence.setSize(EditorTool.SMALL_BTN_SIZE);

                        btnNewPrecedence.setIcon(getIconButton());

                        btnNewPrecedence.setToolTipText(

                                        Messages.getText("set_high_precedence"));

                }

                return btnNewPrecedence;

        }

        /**

         * Obtains the image for the button of the tool

         *

         * @return

         */

        protected ImageIcon getIconButton() {

                return IconThemeHelper.getImageIcon(buttonIcon);

        }

        @Override

        public AbstractButton getButton() {

                return getBtnNewPrecedence();

        }

        @Override

        public Cursor getCursor() {

                return cursor;

        }

        @Override

        public String getID() {

                return "1";

        }

        @Override

        public boolean isSuitableFor(Object obj) {

                return obj instanceof PointLabelPositioner;

        }

        @Override

        public void setModel(Object objectToBeEdited) {

                positioneer = (PointLabelPositioner) objectToBeEdited;

        }

        /**

         * Obtains the position

         * @param p

         * @return

         */

        private int getPositionerCellIndex(Point p) {

                Dimension dim = ((StyleEditor) owner).getStylePreviewer().getSize();

                int size = Math.min(dim.width, dim.height);

                if(p.getX() > size || p.getY()>size)

                        return -1;

                int cellSize = size/3;

                int row = (int) p.getY() / cellSize;

                int col = (int) p.getX() / cellSize;

                int arrayPosition = (3 * row) + col;

                if (arrayPosition==4) return -1;

                if (arrayPosition>4) return arrayPosition-1;

                return arrayPosition;

        }

        public void mousePressed(MouseEvent e) {

                int[] pv = positioneer.getPreferenceVector();

                int cellIndex = getPositionerCellIndex(e.getPoint());

                if (cellIndex!=-1) {

                        pv[cellIndex] = precedenceValue;

                }

                owner.repaint();

        }

        public void mouseReleased(MouseEvent e) {

        }

        public void mouseDragged(MouseEvent e) {

        }

}