Application: gvSIG desktop

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

 *

 * Copyright (C) 2005 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 java.awt.geom.Rectangle2D;

import javax.swing.AbstractButton;

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.app.gui.styling.StylePreviewer;

import org.gvsig.fmap.mapcontext.rendering.symbols.styles.ILabelStyle;

import org.gvsig.fmap.mapcontext.rendering.symbols.styles.IStyle;

import org.gvsig.i18n.Messages;

public class LabelStyleNewTextFieldTool extends EditorTool {

        private Point pIni, pEnd;

        private final Cursor cursor = Cursor.getDefaultCursor();

        private ILabelStyle style;

        private JToggleButton btnNewTextArea;

        public LabelStyleNewTextFieldTool(JComponent targetEditor) {

                super(targetEditor);

                // TODO Auto-generated constructor stub

        }

        public Cursor getCursor() {

                return cursor;

        }

        public void mousePressed(MouseEvent e) {

                pIni = e.getPoint();

                pEnd = e.getPoint();

                Rectangle2D rect = screenPointsToLabelRect(pIni, pEnd);

                style.addTextFieldArea(rect);

        }

        public void mouseReleased(MouseEvent e) {

        }

        public void mouseDragged(MouseEvent e) {

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

                pEnd = e.getPoint();

                if (pEnd.getX() < 0)

                        pEnd.x = 0;

                if (pEnd.getX() > bounds.getWidth())

                        pEnd.x = (int) bounds.getWidth();

                if (pEnd.getY() < 0)

                        pEnd.y = 0;

                if (pEnd.getY() > bounds.getHeight())

                        pEnd.y = (int) bounds.getHeight();

                Rectangle2D rect = screenPointsToLabelRect(pIni, pEnd);

                style.setTextFieldArea(style.getFieldCount()-1, rect);

                owner.repaint();

        }

        private Rectangle2D screenPointsToLabelRect(Point pIni, Point pEnd) {

                int minx = pIni.x;

                int miny = pIni.y;

                int width = pEnd.x-pIni.x;

                int height = pEnd.y - pIni.y;

                if (width < 0) {

                        minx += width;

                        width = -width;

                }

                if (height <0) {

                        miny += height;

                        height = -height;

                }

                StylePreviewer sp = ((StyleEditor) owner).getStylePreviewer();

                Dimension bounds = sp.getSize();

                IStyle style = sp.getStyle();

                Dimension backgroundBounds = null;

                if (style instanceof ILabelStyle){

                        backgroundBounds = ((ILabelStyle)style).getSize();

                }

                //FIXME: Esto es un parche, habr?a que cambiar la API de los estilos y simbolos

                //pero mientras tanto

                Rectangle2D rect;

                if (backgroundBounds == null){

                        rect = new Rectangle2D.Double(

                                        minx/(bounds.getWidth()-sp.getHGap()/2), //OJO, aqu? pon?a cuatro 10's a pi?on fijo

                                        miny/(bounds.getHeight()-sp.getVGap()/2),

                                        width/(bounds.getWidth()-sp.getHGap()),

                                        height/(bounds.getHeight()-sp.getVGap())

                        );

                } else {

                        double xOffset = 0;

                        double yOffset = 0;

                        double scale = 1;

                        if (backgroundBounds.getWidth()>backgroundBounds.getHeight()) {

                                scale = (bounds.getWidth()-sp.getHGap())/backgroundBounds.getWidth();

                                yOffset = 0.5*(bounds.getHeight()-sp.getVGap() - backgroundBounds.getHeight()*scale);

                        } else {

                                scale = (bounds.getHeight()-sp.getVGap())/backgroundBounds.getHeight();

                                xOffset = 0.5*(bounds.getWidth()-sp.getHGap() - backgroundBounds.getWidth()*scale);

                        }

                        rect = new Rectangle2D.Double(

                                        ((minx-(sp.getHGap()/2)-xOffset)/scale)/backgroundBounds.getWidth(),

                                        ((miny-(sp.getVGap()/2)-yOffset)/scale)/backgroundBounds.getHeight(),

                                        (width/scale)/backgroundBounds.getWidth(),

                                        (height/scale)/backgroundBounds.getHeight()

                        );

                }

                return rect;

        }

        public AbstractButton getButton() {

                return getBtnNewTextArea();

        }

        @Override

        public String getID() {

                return "2";

        }

        @Override

        public boolean isSuitableFor(Object obj) {

                return obj instanceof ILabelStyle;

        }

        @Override

        public void setModel(Object objectToBeEdited) {

                style = (ILabelStyle) objectToBeEdited;

        }

        private JToggleButton getBtnNewTextArea() {

                if (btnNewTextArea == null) {

                        btnNewTextArea = new JToggleButton(

                                        IconThemeHelper.getImageIcon("edit-add-text"));

                        btnNewTextArea.setToolTipText(

                                        Messages.getText("add_text_area"));

                        btnNewTextArea.setSize(EditorTool.SMALL_BTN_SIZE);

                }

                return btnNewTextArea;

        }

}