| gvSIG desktop 1

/* 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.symbology.gui.layerproperties;

import java.awt.BorderLayout;

import java.awt.Component;

import java.awt.Dimension;

import java.awt.List;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.beans.PropertyChangeEvent;

import javax.swing.AbstractCellEditor;

import javax.swing.JCheckBox;

import javax.swing.JComponent;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.ListSelectionModel;

import javax.swing.table.DefaultTableModel;

import javax.swing.table.TableCellEditor;

import javax.swing.table.TableCellRenderer;

import javax.swing.table.TableColumnModel;

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

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

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

import org.gvsig.gui.beans.swing.celleditors.BooleanTableCellEditor;

import org.gvsig.gui.beans.swing.cellrenderers.BooleanTableCellRenderer;

import org.gvsig.symbology.fmap.labeling.FeatureDependentLabeled;

import org.gvsig.symbology.fmap.labeling.parse.LabelExpressionParser;

import com.hardcode.gdbms.driver.exceptions.ReadDriverException;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.fmap.layers.SelectableDataSource;

import com.iver.cit.gvsig.fmap.rendering.styling.labeling.ILabelingMethod;

import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelClass;

public class FeatureDependent extends AbstractLabelingMethodPanel implements ActionListener{

        private static final long serialVersionUID = 5493451803343695650L;

        private static int NAME_FIELD_INDEX = 0;

        private static int PREVIEW_FIELD_INDEX = 1;

        private static int FILTER_FIELD_INDEX = 2;

        private static int LABEL_EXPRESSION_FIELD_INDEX = 3;

        private static int VISIBLE_FIELD_INDEX = 4;

        JTable tblClasses = null;

        private JButton btnMoveUpClass;

        private JButton btnAddClass;

        private JCheckBox chkLabel;

        private JCheckBox chkDefinePriorities;

        private JScrollPane scrlPan;

        private boolean openEditor = false;

        private JButton btnMoveDownClass;

        private JButton btnDelClass;

        private String[] fieldNames;

        private int[] fieldTypes;

        private GridBagLayoutPanel buttonPanel;

        @Override

        public String getName() {

                return PluginServices.getText(

                                this,

                "define_classes_of_features_and_label_each_differently")+".";

        }

        @Override

        public Class<? extends ILabelingMethod> getLabelingMethodClass() {

                return FeatureDependentLabeled.class;

        }

        private JCheckBox getChkDefinePriorities() {

                if (chkDefinePriorities == null) {

                        chkDefinePriorities = new JCheckBox(PluginServices.getText(this, "label_priority"));

                        chkDefinePriorities.addActionListener(this);

                        chkDefinePriorities.setName("CHK_DEFINE_PRIORITIES");

                }

                return chkDefinePriorities;

        }

        private JButton getBtnDelClass() {

                if (btnDelClass == null) {

                        btnDelClass = new JButton(PluginServices.getText(this, "delete"));

                        btnDelClass.setName("BTNDELCLASS");

                        btnDelClass.addActionListener(this);

                }

                return btnDelClass;

        }

        private JButton getBtnAddClass() {

                if (btnAddClass == null) {

                        btnAddClass = new JButton(PluginServices.getText(this, "add"));

                        btnAddClass.setName("BTNADDCLASS");

                        btnAddClass.addActionListener(this);

                }

                return btnAddClass;

        }

        private JButton getBtnMoveUpClass() {

                if (btnMoveUpClass == null) {

                        btnMoveUpClass = new JButton(PluginServices.getText(this, "move_up"));

                        btnMoveUpClass.setName("BTNMOVEUPCLASS");

                        btnMoveUpClass.addActionListener(this);

                }

                return btnMoveUpClass;

        }

        private JButton getBtnMoveDownClass() {

                if (btnMoveDownClass == null) {

                        btnMoveDownClass = new JButton(PluginServices.getText(this, "move_down"));

                        btnMoveDownClass.setName("BTNMOVEDOWNCLASS");

                        btnMoveDownClass.addActionListener(this);

                }

                return btnMoveDownClass;

        }

        private JScrollPane getCenterScrl() {

                scrlPan = new JScrollPane(getTblClasses());

                scrlPan.setPreferredSize(new Dimension(180, 300));

                return scrlPan;

        }

        private JTable getTblClasses() {

                tblClasses = new JTable(new LabelClassTableModel());

                tblClasses.setRowHeight(50);

                tblClasses.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

                tblClasses.addMouseListener(new MouseAdapter() {

                        int prevRow =-1;

                        @Override

                        public void mouseClicked(MouseEvent e) {

                                int col = tblClasses.getColumnModel().getColumnIndexAtX(e.getX());

                                int row = (int) ((e.getY()-tblClasses.getLocation().getY()) / tblClasses.getRowHeight());

                                if(!(row > tblClasses.getRowCount()-1 || col > tblClasses.getColumnCount()-1))

                                {

                                        openEditor = (row == prevRow && e.getButton() == MouseEvent.BUTTON1 && e.getClickCount() == 2

                                        ) ;

                                        prevRow = row;

                                        if (openEditor)

                                                tblClasses.editCellAt(row, col);

                                }

                        }

                });

                TableColumnModel cm = tblClasses.getColumnModel();

                tblClasses.getColumnModel().getColumn(PREVIEW_FIELD_INDEX).setCellRenderer(new TableCellRenderer() {

                        public Component getTableCellRendererComponent(JTable table,

                                        Object value, boolean isSelected, boolean hasFocus,

                                        int row, int column) {

                                LabelClassPreview lcPr = new LabelClassPreview();

                                lcPr.setLabelClass((LabelClass) value);

                                return lcPr;

                        }

                });

                tblClasses.getColumnModel().getColumn(VISIBLE_FIELD_INDEX).setCellRenderer(new BooleanTableCellRenderer(false));

                tblClasses.getColumnModel().getColumn(LABEL_EXPRESSION_FIELD_INDEX).setCellRenderer(new TableCellRenderer() {

                        public Component getTableCellRendererComponent(JTable table,

                                        Object value, boolean isSelected, boolean hasFocus,

                                        int row, int column) {

                                String expr = null;

                                if (value != null)

                                        expr = (String) value;

                                if (expr == null)

                                        expr = LabelExpressionParser.tokenFor(LabelExpressionParser.EOEXPR);

                                expr = expr.replaceAll(LabelExpressionParser.tokenFor(LabelExpressionParser.EOFIELD), " | ");

                                expr = expr.substring(0, expr.length()-1);

                                return new JLabel("<html><p>"+expr+"</p></html>", JLabel.CENTER);

                        }

                });

                // the editors

                for (int i = 0; i < tblClasses.getColumnModel().getColumnCount(); i++) {

                        if (i!= VISIBLE_FIELD_INDEX) {

                                tblClasses.getColumnModel().getColumn(i).setCellEditor(new LabelClassCellEditor());

                        } else {

                                tblClasses.getColumnModel().getColumn(VISIBLE_FIELD_INDEX).

                                setCellEditor(new BooleanTableCellEditor(tblClasses));

                        }

                }

                ((DefaultTableModel)tblClasses.getModel()).fireTableDataChanged();

                repaint();

                return tblClasses;

        }

        private class LabelClassCellEditor extends AbstractCellEditor implements TableCellEditor {

                private static final long serialVersionUID = 6399823783851437400L;

                public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {

                        if (openEditor) {

                                LabelClass oldLc = (LabelClass) tblClasses.getValueAt(row, PREVIEW_FIELD_INDEX);

                                LabelClassProperties lcProp = new LabelClassProperties(fieldNames, fieldTypes);

                                oldLc.setTexts(new String[] {oldLc.getName()});

                                lcProp.setLabelClass(oldLc);

                                PluginServices.getMDIManager()

                                .addWindow(lcProp);

                                LabelClass newLc = lcProp.getLabelClass();

                                LabelClassTableModel m = (LabelClassTableModel) tblClasses.getModel();

                                Boolean changeDone = false;

                                if (!(oldLc.getName().equals(newLc.getName())))

                                        if(!checSameLablClassName(m,newLc.getName())){

                                                m.setValueAt(newLc.getLabelExpression(), row, LABEL_EXPRESSION_FIELD_INDEX);

                                                m.setValueAt(newLc.getName(), row, NAME_FIELD_INDEX);

                                                m.setValueAt(newLc, row, PREVIEW_FIELD_INDEX);

                                                m.setValueAt(newLc.getSQLQuery(), row, FILTER_FIELD_INDEX);

                                                m.setValueAt(newLc.isVisible(), row, VISIBLE_FIELD_INDEX);

                                                fireEditingStopped(); //Make the renderer reappear.

                                                changeDone = true;

                                        }

                                        else {

                                                JOptionPane.showMessageDialog(tblClasses, PluginServices.getText(this, "cannot_exist_two_label_classes_with_the_same_name")+"\n",PluginServices.getText(this,"error"),JOptionPane.ERROR_MESSAGE);

                                                changeDone = true;

                                        }

                                if (!changeDone){

                                        m.setValueAt(newLc.getLabelExpression(), row, LABEL_EXPRESSION_FIELD_INDEX);

                                        m.setValueAt(newLc.getName(), row, NAME_FIELD_INDEX);

                                        m.setValueAt(newLc, row, PREVIEW_FIELD_INDEX);

                                        m.setValueAt(newLc.getSQLQuery(), row, FILTER_FIELD_INDEX);

                                        m.setValueAt(newLc.isVisible(), row, VISIBLE_FIELD_INDEX);

                                        fireEditingStopped(); //Make the renderer reappear.

                                        changeDone = true;

                                }

                        }

                        openEditor = false;

                        return null;

                }

                public Object getCellEditorValue() {

                        return null;

                }

        }

        private boolean checSameLablClassName(LabelClassTableModel mod, String name) {

                for (int i = 0; i < mod.getRowCount(); i++) {

                        if(name.equals(mod.getLabelAtRow(i).getName()))

                                return true;

                }

                return false;

        }

        private class LabelClassTableModel extends DefaultTableModel {

                private static final long serialVersionUID = -9152998982339430209L;

                private String[] classesTableFieldNames = new String[] {

                                PluginServices.getText(this, "name"),

                                PluginServices.getText(this, "preview"),

                                PluginServices.getText(this, "filter"),

                                PluginServices.getText(this, "label_expression"),

                                PluginServices.getText(this, "visible"),

                };

                public LabelClassTableModel() {

                        super();

                        LabelClass[] labelClasses = method.getLabelClasses();

                        Object[][] values = new Object[labelClasses.length][classesTableFieldNames.length];

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

                                values[i][PREVIEW_FIELD_INDEX] = labelClasses[i];

                                values[i][NAME_FIELD_INDEX] = labelClasses[i].getName();

                                values[i][FILTER_FIELD_INDEX] = labelClasses[i].getSQLQuery();

                                values[i][LABEL_EXPRESSION_FIELD_INDEX] = labelClasses[i].getLabelExpression();

                                values[i][VISIBLE_FIELD_INDEX] = labelClasses[i].isVisible();

                        }

                        setDataVector(values, classesTableFieldNames);

                }

                public String getColumnName(int col) {

                        return classesTableFieldNames[col];

                }

                public int getColumnCount() {

                        return classesTableFieldNames.length;

                }

                @Override

                public boolean isCellEditable(int row, int column) {

                        return true;

                }

                public LabelClass getLabelAtRow(int row) {

                        return (LabelClass) getValueAt(row, PREVIEW_FIELD_INDEX);

                }

                public LabelClass[] toLabelClassArray() {

                        LabelClass[] classes = new LabelClass[getRowCount()];

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

                                classes[i] = getLabelAtRow(i);

                                if (getChkDefinePriorities().isSelected()) {

                                        classes[i].setPriority(i);

                                }

                        }

                        return classes;

                }

                public void setClassArray(LabelClass[] classes) {

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

                                        setValueAt(classes[i],i,PREVIEW_FIELD_INDEX);

                                        setValueAt(classes[i].getName(),i,NAME_FIELD_INDEX);

                                        setValueAt(classes[i].getSQLQuery(),i,FILTER_FIELD_INDEX);

                                        setValueAt(classes[i].getLabelExpression(),i,LABEL_EXPRESSION_FIELD_INDEX);

                                        setValueAt(classes[i].isVisible(),i,VISIBLE_FIELD_INDEX);

                        }

                }

        }

        @Override

        protected void initializePanel() {

                setLayout(new BorderLayout());

                JPanel panel = new JPanel(new BorderLayout());

                buttonPanel = new GridBagLayoutPanel();

                buttonPanel.addComponent(getBtnAddClass());

                buttonPanel.addComponent(getBtnDelClass());

                buttonPanel.addComponent(new JBlank(10, 10));

                buttonPanel.addComponent(getBtnMoveUpClass());

                buttonPanel.addComponent(getBtnMoveDownClass());

                panel.add(buttonPanel, BorderLayout.EAST);

                panel.add(getChkDefinePriorities(), BorderLayout.NORTH);

                panel.add(getCenterScrl(), BorderLayout.CENTER);

                add(panel,BorderLayout.CENTER);

        }

        @Override

        public void fillPanel(ILabelingMethod method, SelectableDataSource dataSource)

        throws ReadDriverException {

                fieldNames = dataSource.getFieldNames();

                fieldTypes = new int[fieldNames.length];

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

                        fieldTypes[i] = dataSource.getFieldType(i);

                }

                if (method == null) {

                        this.method = new FeatureDependentLabeled();

                }

                chkDefinePriorities.setSelected(this.method.definesPriorities());

                repaint();

        }

        private void swapClass(int classIndex, int targetPos,int numOfElements) {

                LabelClass[] classes = ((LabelClassTableModel)tblClasses.getModel()).toLabelClassArray();

                LabelClass aux = classes[targetPos];

                classes[targetPos] = classes[classIndex];

                classes[classIndex] = aux;

                ((LabelClassTableModel)tblClasses.getModel()).setClassArray(classes);

        }

        public void actionPerformed(ActionEvent e) {

                if (method == null) return;

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

                LabelClassTableModel mod = ((LabelClassTableModel) tblClasses.getModel());

                if (c.equals(btnAddClass)) {

                        LabelClass newClass = new LabelClass();

                        String name = PluginServices.getText(this, "labeling")+

                        String.valueOf(1);

                        int count = 0;

                        while(checSameLablClassName(mod,name)){

                                count++;

                                name = PluginServices.getText(this, "labeling")+

                                String.valueOf(count);

                        }

                        newClass.setName(name);

                        mod.addRow(new Object[] {newClass.getName(), newClass, newClass.getSQLQuery(), newClass.getLabelExpression(), newClass.isVisible()});

                } else if (c.equals(btnDelClass)) {

                        if (mod.getRowCount()>=1) {

                                int[] sRows = tblClasses.getSelectedRows();

                                for (int i = sRows.length-1; i >= 0 ; i--) {

                                        mod.removeRow(sRows[i]);

                                }

                        }

                } else if (c.equals(chkDefinePriorities)) {

                        method.setDefinesPriorities(chkDefinePriorities.isSelected());

                } else  if (c.equals(chkLabel)) {

                        int[] sRows = tblClasses.getSelectedRows();

                        for (int i = sRows.length-1; i >= 0 ; i--) {

                                LabelClass lc = mod.getLabelAtRow(i);

                                lc.setVisible(chkLabel.isSelected());

                        }

                } else if (c.equals(btnMoveUpClass)) {

                        int[] indices = tblClasses.getSelectedRows();

                        if (indices.length>0) {

                                int classIndex = indices[0];

                                int targetPos = Math.max(0, classIndex-1);

                                swapClass(classIndex, targetPos,indices.length);

                        }

                } else if (c.equals(btnMoveDownClass)) {

                        int[] indices = tblClasses.getSelectedRows();

                        if (indices.length>0) {

                                int classIndex = indices[indices.length-1];

                                int targetPos = Math.min(tblClasses.getRowCount()-1, classIndex+1);

                                swapClass(classIndex, targetPos,indices.length);

                        }

                }else if (c.equals(btnDelClass)) {

                        int[] indices = tblClasses.getSelectedRows();

                        if (indices.length>0) {

                                int classIndex = indices[0];

                                int targetPos = Math.min(tblClasses.getRowCount(), classIndex);

                                swapClass(classIndex, targetPos,indices.length);

                        }

                }

                mod.fireTableDataChanged();

                method.clearAllClasses();

                LabelClass[] classes = ((LabelClassTableModel)tblClasses.getModel()).toLabelClassArray();

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

                        method.addLabelClass(classes[i]);

                }

                repaint();

        }

        public void propertyChange(PropertyChangeEvent evt) {

                // TODO Auto-generated method stub

        }

}