Application: gvSIG desktop

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.app.gui.styling;

import java.awt.BasicStroke;

import java.awt.Color;

import java.awt.Dimension;

import java.awt.FlowLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.ArrayList;

import javax.swing.JPanel;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.app.gui.panels.ColorChooserPanel;

import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol;

import org.gvsig.gui.beans.listeners.BeanListener;

import org.gvsig.gui.beans.swing.GridBagLayoutPanel;

import org.gvsig.gui.beans.swing.JIncrementalNumberField;

import org.gvsig.i18n.Messages;

import org.gvsig.symbology.SymbologyLocator;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.line.ISimpleLineSymbol;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.style.IArrowDecoratorStyle;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.style.ILineStyle;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.style.ISimpleLineStyle;

/**

 * SimpleLine allows the user to store and modify the main properties that

 * define a <b>simple line</b>.<p>

 * <p>

 * This functionality is carried out thanks to two tabs (simple line and arrow

 * decorator)which are included in the panel to edit the properities of a symbol

 * (SymbolEditor)how is explained in AbstractTypeSymbolEditor.<p>

 * <p>

 * The first tab (Simple Line)allows the user to change the color (<b>jccColor</b>),

 * the width (<b>txtWidth</b>) and the style of the line (<b>cmbLinStyles</b>).<p>

 * <p>

 * The second tab (<b>arrowDecorator</b>)allows the user to insert a symbol in the

 * line (for example an arrow to specify its orientation)and to modify it.

 *

 *@see ArrowDecorator

 *@see AbstractTypeSymbolEditor

 *@author jaume dominguez faus - jaume.dominguez@iver.es

 */

public class SimpleLine extends AbstractTypeSymbolEditor implements ActionListener {

        private ColorChooserPanel jccColor;

        private JIncrementalNumberField txtWidth;

        private ArrayList<JPanel> tabs = new ArrayList<JPanel>();

        private ArrowDecorator arrowDecorator;

        private LineProperties lineProperties;

        private JIncrementalNumberField txtOffset;

        public SimpleLine(SymbolEditor owner) {

                super(owner);

                initialize();

        }

        /**

         * Initializes the parameters that define a simpleline.To do it, two tabs

         * are created inside the SymbolEditor panel with default values for the

         * different attributes of the simple line.This two tabs will be simple

         * line tab (options of color, width and style of the line)and arrow

         * decorator tab (options to "decorate" the line with a symbol).

         */

        private void initialize() {

                JPanel myTab = new JPanel(new FlowLayout(FlowLayout.LEADING, 5,5));

                myTab.setName(Messages.getText("simple_line"));

                GridBagLayoutPanel aux = new GridBagLayoutPanel();

                // color chooser

                jccColor = new ColorChooserPanel(true);

                jccColor.setAlpha(255);

                aux.addComponent(Messages.getText("color"),

                                jccColor        );

                // line width

                txtWidth = new JIncrementalNumberField("3", 25, 0, Double.POSITIVE_INFINITY, 1);

                aux.addComponent(Messages.getText("width")+":",

                                txtWidth );

                // line offset

                txtOffset = new JIncrementalNumberField("0", 25, Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY, 1);

                aux.addComponent(Messages.getText("offset")+":",

                                txtOffset );

                aux.setPreferredSize(new Dimension(300, 300));

                myTab.add(aux);

                // initialize defaults

                jccColor.setColor(Color.BLACK);

                txtWidth.setDouble(1.0);

                jccColor.addActionListener(this);

                txtWidth.addActionListener(this);

                txtOffset.addActionListener(this);

                tabs.add(myTab);

                // Arrow Decorator

                arrowDecorator = new ArrowDecorator();

                arrowDecorator.addListener(new BeanListener() {

                        public void beanValueChanged(Object value) {

                                fireSymbolChangedEvent();

                        }

                });

                tabs.add(arrowDecorator);

                lineProperties = new LineProperties((float) txtWidth.getDouble());

                lineProperties.addListener(new BeanListener(){

                        public void beanValueChanged(Object value) {

                                fireSymbolChangedEvent();

                        }

                });

                tabs.add(lineProperties);

        }

        public ISymbol getLayer() {

                ISimpleLineSymbol layer = SymbologyLocator.getSymbologyManager().createSimpleLineSymbol();

                layer.setLineColor(jccColor.getColor());

//                layer.setIsShapeVisible(true); //true is the default value for this property

                // clone the selected style in the combo box

                ISimpleLineStyle simplLine= SymbologyLocator.getSymbologyManager().createSimpleLineStyle(); //new SimpleLineStyle();

                simplLine.setStroke(lineProperties.getLinePropertiesStyle());

                simplLine.setOffset(-txtOffset.getDouble());

                IArrowDecoratorStyle ads= arrowDecorator.getArrowDecoratorStyle();

                if (ads != null) {

                        ads.getMarker().setColor(jccColor.getColor());

                }

                simplLine.setArrowDecorator(arrowDecorator.getArrowDecoratorStyle());

                layer.setLineStyle(simplLine);

                layer.setLineWidth((float) txtWidth.getDouble());

                return layer;

        }

        public String getName() {

                return Messages.getText("simple_line");

        }

        public JPanel[] getTabs() {

                return (JPanel[]) tabs.toArray(new JPanel[0]);

        }

        public void refreshControls(ISymbol layer) {

                ISimpleLineSymbol sym;

                try {

                        if (layer == null) {

                                // initialize defaults

                                System.err.println(getClass().getName()+":: should be unreachable code");

                                jccColor.setColor(Color.BLACK);

                                txtWidth.setDouble(1.0);

                                txtOffset.setDouble(0);

                        } else {

                                sym = (ISimpleLineSymbol) layer;

                                jccColor.setColor(sym.getColor());

                                txtWidth.setDouble(sym.getLineStyle().getLineWidth());

                                txtOffset.setDouble(sym.getLineStyle().getOffset() == 0 ? 0 : -sym.getLineStyle().getOffset() );

                                arrowDecorator.setArrowDecoratorStyle( sym.getLineStyle().getArrowDecorator());

                                /*

                                 * this line discards any temp changes in the linestyle

                                 * widths made by any previous rendering and sets all the

                                 * values to those to be persisted.

                                 */

                                ILineStyle tempLineStyle = (ILineStyle) sym.getLineStyle().clone();

                                lineProperties.setLinePropertiesStyle((BasicStroke) tempLineStyle.getStroke());

                        }

                } catch (IndexOutOfBoundsException ioEx) {

                        NotificationManager.addWarning("Symbol layer index out of bounds", ioEx);

                } catch (ClassCastException ccEx) {

                        NotificationManager.addWarning("Illegal casting from " +

                                        layer.getClass().getName() + " to ISimpleLineSymbol.", ccEx);

                } catch (CloneNotSupportedException e) {

                        NotificationManager.addWarning(

                                        "Symbol line style does not support cloning", e);

                }

        }

        public void actionPerformed(ActionEvent e) {

                fireSymbolChangedEvent();

        }

        public EditorTool[] getEditorTools() {

                return null;

        }

        @Override

        public boolean canManageSymbol(ISymbol symbol) {

                return symbol instanceof ISimpleLineSymbol;

        }

}