/*
 *                 Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 *
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2004 Sun
 * Microsystems, Inc. All Rights Reserved.
 */
package org.netbeans.modules.refactoring.ui;

import java.awt.Component;
import java.awt.Dimension;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import javax.jmi.reflect.RefObject;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JTable;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
import org.netbeans.modules.refactoring.api.AbstractRefactoring;
import org.netbeans.modules.refactoring.api.EncapsulateFieldRefactoring;
import org.netbeans.modules.refactoring.api.ui.ParametersPanel;
import org.netbeans.jmi.javamodel.ClassDefinition;
import org.netbeans.jmi.javamodel.EnumConstant;
import org.netbeans.jmi.javamodel.Field;
import org.openide.util.NbBundle;

/**
 * Panel used by Encapsulate Field refactoring. Contains components to
 * set parameters for the refactoring.
 *
 * @author  Pavel Flaska
 */
public class EncapsulateFieldPanel extends javax.swing.JPanel {
    
    Field[] refactoredObjs;
    DefaultTableModel model;
    
    private static final String modifierNames[] = {
        "public", // NOI18N
        "protected", // NOI18N
        "", // NOI18N
        "private" // NOI18N
    };
    
    private static final String[] columnNames = {
        "    ", // NOI18N 
        getString("LBL_ColField"),  // NOI18N
        getString("LBL_ColGetter"), // NOI18N
        getString("LBL_ColSetter")  // NOI18N
    };
    
    // modifier items in combo - indexes
    private static final int MOD_PUBLIC_INDEX = 0;
    private static final int MOD_PROTECTED_INDEX = 1;
    private static final int MOD_DEFAULT_INDEX = 2;
    private static final int MOD_PRIVATE_INDEX = 3;

    private static final Class[] columnTypes = new Class[] {
        java.lang.Boolean.class, java.lang.String.class, java.lang.String.class, java.lang.String.class
    };
    
    /** 
     * Creates new form EncapsulateFieldPanel.
     *
     * @param selectedObjects  array of selected objects
     */
    public EncapsulateFieldPanel(RefObject[] selectedObjects, final ParametersPanel parent) {
        refactoredObjs = initFields((Field) selectedObjects[0]);
        model = new TabM(columnNames, 0);
        Set selectedNames = new HashSet(selectedObjects.length);
        for (int i = 0; i < selectedObjects.length; i++) {
            selectedNames.add(((Field) selectedObjects[i]).getName());
        }
        for (int i = 0; i < refactoredObjs.length; i++) {
            Field field = refactoredObjs[i];
            String name = field.getName();
            model.addRow(new Object[] { 
                selectedNames.contains(name) ? Boolean.TRUE : Boolean.FALSE,
                name,
                EncapsulateFieldRefactoring.computeGetterName(field),
                EncapsulateFieldRefactoring.computeSetterName(field)
            });
        }
        initComponents();
        packRows(jTableFields);
        jTableFields.invalidate();
        jTableFields.repaint();
        model.addTableModelListener(new TableModelListener() {
            public void tableChanged(TableModelEvent e) {
                parent.stateChanged(null);
            }
        });
    }
    
    public EncapsulateFieldPanel() {
        model = new TabM(columnNames, 0);
        initComponents();
    }
    
    private int getMinimumRowHeight(JTable table, int rowIndex) {
        int height = table.getRowHeight();
    
        for (int c=0; cmax)
                max=h;
        }
        table.setRowHeight(max);
        table.getTableHeader().setPreferredSize(new Dimension(table.getTableHeader().getPreferredSize().width, max));
    }
    
    /**
     * Returns table model with data provided by user.
     *
     * @return  data provided in table by user
     */
    protected DefaultTableModel getTableModel() {
        return model;
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        java.awt.GridBagConstraints gridBagConstraints;

        jLblTitle = new javax.swing.JLabel();
        jScrollField = new javax.swing.JScrollPane();
        jTableFields = new javax.swing.JTable();
        jLblFieldVis = new javax.swing.JLabel();
        jComboField = new javax.swing.JComboBox();
        jLblAccessVis = new javax.swing.JLabel();
        jComboAccess = new javax.swing.JComboBox();
        jCheckAccess = new javax.swing.JCheckBox();

        setLayout(new java.awt.GridBagLayout());

        setName(getString("LBL_TitleEncapsulateFields"));
        jLblTitle.setDisplayedMnemonic(getString("LBL_FieldList_MNEM").charAt(0));
        jLblTitle.setLabelFor(jTableFields);
        jLblTitle.setText(getString("LBL_FieldList"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(2, 2, 2, 2);
        add(jLblTitle, gridBagConstraints);

        jScrollField.setPreferredSize(new java.awt.Dimension(300, 200));
        jTableFields.setModel(model);
        TableColumn col = jTableFields.getColumnModel().getColumn(0);
        jTableFields.getTableHeader().setReorderingAllowed(false);
        int width = (int) jCheckAccess.getPreferredSize().getWidth();
        col.setPreferredWidth(width);
        col.setMinWidth(width);
        col.setMaxWidth(width);
        col.setResizable(false);
        jScrollField.setViewportView(jTableFields);
        jTableFields.getAccessibleContext().setAccessibleDescription(java.util.ResourceBundle.getBundle("org/netbeans/modules/refactoring/ui/Bundle").getString("ACSD_jTableFields"));

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.gridwidth = 2;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        gridBagConstraints.insets = new java.awt.Insets(2, 2, 12, 2);
        add(jScrollField, gridBagConstraints);

        jLblFieldVis.setDisplayedMnemonic(getString("LBL_FieldVis_MNEM").charAt(0));
        jLblFieldVis.setLabelFor(jComboField);
        jLblFieldVis.setText(getString("LBL_FieldVis"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 2;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(2, 2, 5, 5);
        add(jLblFieldVis, gridBagConstraints);

        jComboField.setModel(new DefaultComboBoxModel(modifierNames));
        jComboField.setSelectedIndex(3);
        jComboField.setPreferredSize(new java.awt.Dimension(100, 23));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 2;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 0, 5, 0);
        add(jComboField, gridBagConstraints);
        jComboField.getAccessibleContext().setAccessibleDescription(java.util.ResourceBundle.getBundle("org/netbeans/modules/refactoring/ui/Bundle").getString("ACSD_fieldModifiers"));

        jLblAccessVis.setDisplayedMnemonic(getString("LBL_AccessVis_MNEM").charAt(0));
        jLblAccessVis.setLabelFor(jComboAccess);
        jLblAccessVis.setText(getString("LBL_AccessVis"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 3;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(2, 2, 2, 5);
        add(jLblAccessVis, gridBagConstraints);

        jComboAccess.setModel(new DefaultComboBoxModel(modifierNames));
        jComboAccess.setSelectedIndex(0);
        jComboAccess.setPreferredSize(new java.awt.Dimension(100, 24));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 3;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        add(jComboAccess, gridBagConstraints);
        jComboAccess.getAccessibleContext().setAccessibleDescription(java.util.ResourceBundle.getBundle("org/netbeans/modules/refactoring/ui/Bundle").getString("ACSD_methodAcc"));

        jCheckAccess.setText(getString("LBL_AccessorsEven"));
        // NOI18N
        jCheckAccess.setSelected(true);
        jCheckAccess.setMnemonic(getString("LBL_AccessorsEven_MNEM").charAt(0));
        jCheckAccess.setMargin(new java.awt.Insets(12, 2, 2, 2));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 4;
        gridBagConstraints.gridwidth = 2;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(2, 0, 2, 0);
        add(jCheckAccess, gridBagConstraints);
        jCheckAccess.getAccessibleContext().setAccessibleDescription(java.util.ResourceBundle.getBundle("org/netbeans/modules/refactoring/ui/Bundle").getString("ACSD_useAccessors"));

    }//GEN-END:initComponents

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JCheckBox jCheckAccess;
    private javax.swing.JComboBox jComboAccess;
    private javax.swing.JComboBox jComboField;
    private javax.swing.JLabel jLblAccessVis;
    private javax.swing.JLabel jLblFieldVis;
    private javax.swing.JLabel jLblTitle;
    private javax.swing.JScrollPane jScrollField;
    private javax.swing.JTable jTableFields;
    // End of variables declaration//GEN-END:variables

    private static String getString(String key) {
        return NbBundle.getMessage(EncapsulateFieldPanel.class, key);
    }

    /**
     * Returns the array of all fields from class which contains
     * selectedField provided as a parameter.
     *
     * @param   selectedField field, whose class is used for obtaining
     *                        array of fields.
     * @return  array of all fields in a class.
     */
    private Field[] initFields(Field selectedField) {
        ClassDefinition cd = selectedField.getDeclaringClass();
        List result = new ArrayList();
        List features = cd.getFeatures();
        for (Iterator it = features.iterator(); it.hasNext(); ) {
            Object o = it.next();
            if ((o instanceof Field) && !(o instanceof EnumConstant)) {
                result.add(o);
            }
        }
        return (Field[]) result.toArray(new Field[0]);
    }
    
    public Field[] getAllFields() {
        return refactoredObjs;
    }
    
    protected int[] getModifiers() {
        int[] result = new int[2];
        JComboBox combo = jComboAccess;
        int i = 0;
        while (i < 2) {
            switch (combo.getSelectedIndex()) {
                case MOD_PRIVATE_INDEX: 
                    result[i] = Modifier.PRIVATE;
                    break;
                case MOD_DEFAULT_INDEX: 
                    result[i] = 0; /* no modifier */
                    break;
                case MOD_PROTECTED_INDEX: 
                    result[i] = Modifier.PROTECTED;
                    break;
                case MOD_PUBLIC_INDEX:
                    result[i] = Modifier.PUBLIC;
                    break;
            }
            combo = jComboField;
            i++;
        }
        return result;
    }
    
    ////////////////////////////////////////////////////////////////////////////
    // INNER CLASSES
    ////////////////////////////////////////////////////////////////////////////
    /**
     * The class is used by EncapsulateFieldPanel - it represents table model
     * used inside in jTable. It denies to edit first column, returns the
     * column classes (Boolean, String, String, String) etc.
     */
    private static class TabM extends DefaultTableModel {
        
        public TabM(Object[] columnNames, int rowCount) {
            super(columnNames, rowCount);
        }
        
        /**
         * Returns the appropriate class for column.
         *
         * @param  columnIndex  index of column for which we are looking for a class
         * @return  class which is used in the column
         */
        public Class getColumnClass(int columnIndex) {
            return columnTypes[columnIndex];
        }

        /**
         * We deny edit the field column (index 1), because field can't
         * be renamed when we encapsulate it.
         *
         * @param  row  doesn't matter
         * @param  column  for value 1, it returns false, otherwise true
         *
         * @return  true, if the cell is editable
         */
        public boolean isCellEditable(int row, int column) {
            return column != 1;
        }
    }
    // end INNER CLASSES
}