| gvSIG desktop 1

/* 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 com.iver.cit.gvsig.gui.styling;

import java.awt.Color;

import java.awt.FlowLayout;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.ArrayList;

import javax.swing.JComponent;

import javax.swing.JPanel;

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

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

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

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

import org.gvsig.raster.datastruct.ColorItem;

import org.gvsig.raster.datastruct.ColorTable;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.fmap.core.FShape;

import com.iver.cit.gvsig.fmap.core.symbols.GradientFillSymbol;

import com.iver.cit.gvsig.fmap.core.symbols.ILineSymbol;

import com.iver.cit.gvsig.fmap.core.symbols.ISymbol;

import com.iver.cit.gvsig.fmap.core.v02.FConstant;

import com.iver.cit.gvsig.project.documents.view.legend.gui.JSymbolPreviewButton;

import com.iver.utiles.swing.JComboBox;

/**

* <b>GradientFill</b> allows to store and modify the properties that fills a

* polygon with a padding with a gradient<p>

* <p>

* This functionality is carried out thanks to a tab (gradient fill)which is included

* in the panel to edit the properities of a symbol (SymbolEditor)how is explained

* in AbstractTypeSymbolEditor.<p>

* <p>

* This tab permits the user to change the different properties of the gradient such

* as its style <b>gradientStyle</b>, angle of rotation <b>gradientAngle</b>,

* percentage <b>gradientPercentage</b>, intervals <b>gradientIntervals</b> and the outline <b>outline</b> of the polygon.Also the

* user can select the colors for the gradient <b>gradientColor</b>.

*

*

*

*@see AbstractTypeSymbolEditor

*@author pepe vidal salvador - jose.vidal.salvador@iver.es

*/

public class GradientFill extends AbstractTypeSymbolEditor implements ActionListener {

	private JIncrementalNumberField gradientIntervals;

	private JIncrementalNumberField gradientPercentage;

	private JIncrementalNumberField gradientAngle;

	private JComboBoxColorScheme gradientColor;

	private JComboBox gradientStyle;

	private JSymbolPreviewButton btnOutline;

	private ILineSymbol outline;

	private ArrayList tabs = new ArrayList();

	/**

	 * Constructor method

	 * @param owner

	 */

	public GradientFill(SymbolEditor owner) {

		super(owner);

		initialize();

	}

	/**

	 * This method initializes this

	 *

	 */

	private void initialize() {

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

		myTab.setName(PluginServices.getText(this, "gradient_fill"));

		JPanel aux = new JPanel(new GridLayout(1, 2, 20, 5));

		GridBagLayoutPanel aux2;

		aux2= new GridBagLayoutPanel();

		aux2.addComponent(new JBlank(5,20));

		gradientIntervals = new JIncrementalNumberField("",

														10,

														ValidatingTextField.INTEGER_VALIDATOR,

														ValidatingTextField.NUMBER_CLEANER,

														1,

														100,

														1);

		aux2.addComponent(PluginServices.getText(this, "intervals"), gradientIntervals);

		aux2.addComponent(new JBlank(5,5));

		gradientPercentage = new JIncrementalNumberField("",10,0,100,1);

		aux2.addComponent(PluginServices.getText(this,"percentage"),gradientPercentage);

		aux2.addComponent(new JBlank(5,5));

		gradientAngle = new JIncrementalNumberField("",10,0,360,1);

		aux2.addComponent(PluginServices.getText(this,"angle"),gradientAngle);

		aux.add(aux2);

		aux2 = new GridBagLayoutPanel();

		aux2.addComponent(new JBlank(5,20));

		gradientStyle = getCmbgradientStyle();

		aux2.addComponent(PluginServices.getText(this,"style"),gradientStyle);

		aux2.addComponent(new JBlank(5,5));

		aux2.addComponent(PluginServices.getText(this, "outline")+":",

				btnOutline = new JSymbolPreviewButton(FShape.LINE));

		aux2.addComponent(new JBlank(5,5));

		JPanel aux3 = new JPanel(new GridLayout(1, 2, 20, 5));

		GridBagLayoutPanel aux4 = new GridBagLayoutPanel();

		aux4.addComponent(new JBlank(5,5));

		aux4.addComponent(PluginServices.getText(this, "gradient_color")+":",

				gradientColor = new JComboBoxColorScheme(false));

		int colorCount = gradientColor.getSelectedColors().length;

		gradientIntervals.setMaxValue(colorCount);

		aux3.add(aux4);

		aux.add(aux2);

		myTab.add(aux);

		myTab.add(aux3);

		gradientIntervals.addActionListener(this);

		gradientPercentage.addActionListener(this);

		gradientAngle.addActionListener(this);

		gradientColor.addActionListener(this);

		gradientStyle.addActionListener(this);

		btnOutline.addActionListener(this);

		tabs.add(myTab);

	}

	public EditorTool[] getEditorTools() {

		return null;

	}

	public ISymbol getLayer() {

		GradientFillSymbol layer=new GradientFillSymbol();

		layer.setOutline(outline);

		layer.setStyle(gradientStyle.getSelectedIndex());

		layer.setIntervals(gradientIntervals.getInteger());

		layer.setAngle(gradientAngle.getDouble()*FConstant.DEGREE_TO_RADIANS);

		layer.setPercentage(gradientPercentage.getDouble());

		ColorItem[] array=new ColorItem [gradientColor.getSelectedColors().length];

		array=gradientColor.getSelectedColors();

		Color[] selcolors = new Color [gradientColor.getSelectedColors().length];;

		for(int i=0;i<array.length;i++) {

			selcolors[i]=array[i].getColor();

		}

		layer.setGradientColor(selcolors);

		layer.setindexgradientcolor(gradientColor.getSelectedIndex());

		return layer;

	}

	public String getName() {

		return PluginServices.getText(GradientFill.class, "gradient_fill_symbol");

	}

	public Class getSymbolClass() {

		return GradientFillSymbol.class;

	}

	public JPanel[] getTabs() {

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

	}

	public void refreshControls(ISymbol layer) {

		gradientStyle.removeActionListener(this);

		GradientFillSymbol sym = (GradientFillSymbol) layer;

		gradientStyle.setSelectedIndex(sym.getStyle());

		outline = sym.getOutline();

		btnOutline.setSymbol(outline);

		int colorCount = (sym.getGradientColor().length);

		gradientIntervals.setMaxValue(colorCount);

		gradientIntervals.setInteger(sym.getIntervals());

		gradientAngle.setDouble(sym.getAngle()/FConstant.DEGREE_TO_RADIANS);

		gradientPercentage.setDouble(sym.getPercentage());

		gradientColor.setSelectedIndex(sym.getindexgradientcolor());

		gradientStyle.addActionListener(this);

	}

	public void actionPerformed(ActionEvent e) {

		JComponent c = (JComponent) e.getSource();

		if (c.equals(gradientColor)) {

			gradientIntervals.setMaxValue(gradientColor.getSelectedColors().length);

			if (gradientIntervals.getInteger() > gradientColor.getSelectedColors().length)

				gradientIntervals.setInteger(gradientColor.getSelectedColors().length);

			else

				gradientIntervals.setInteger(gradientIntervals.getInteger());

		}

		outline = (ILineSymbol) btnOutline.getSymbol();

		fireSymbolChangedEvent();

	}

	/**

	 * Establishes the values for the JCombobox where the user can select the

	 * different styles for the gradient

	 * @return

	 */

	private JComboBox getCmbgradientStyle() {

		if (gradientStyle == null) {

			gradientStyle = new JComboBox(new String[] {

					PluginServices.getText(this, "buffered"),

					PluginServices.getText(this, "lineal"),

					PluginServices.getText(this, "circular"),

					PluginServices.getText(this, "rectangular")

			});

		}

		return gradientStyle;

	}

}