package org.openswing.swing.table.editors.client;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import org.openswing.swing.client.*;
import org.openswing.swing.table.columns.client.*;
import org.openswing.swing.util.client.*;
/**
* <p>Title: OpenSwing Framework</p>
* <p>Description: Column editor used for numeric type columns.</p>
* <p>Copyright: Copyright (C) 2006 Mauro Carniel</p>
*
* <p> This file is part of OpenSwing Framework.
* This library is free software; you can redistribute it and/or
* modify it under the terms of the (LGPL) Lesser General Public
* License as published by the Free Software Foundation;
*
* GNU LESSER GENERAL PUBLIC LICENSE
* Version 2.1, February 1999
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* The author may be contacted at:
* maurocarniel@tin.it</p>
*
* @author Mauro Carniel
* @version 1.0
*/
public class NumericCellEditor extends AbstractCellEditor implements TableCellEditor {
/** flag used to set mandatory property of the cell */
private boolean required;
/** numeric control */
protected NumericControl field;
/** dynamic settings used to reset numeric editor properties for each grid row */
private IntegerColumnSettings dynamicSettings = null;
/** table */
private JTable table = null;
/** current selected row */
private int row = -1;
/** current selected column */
private int col = -1;
/** flag used in grid to automatically select data in cell when editing cell; default value: ClientSettings.SELECT_DATA_IN_EDIT; <code>false</code>to do not select data stored cell; <code>true</code> to automatically select data already stored in cell */
private boolean selectDataOnEdit = ClientSettings.SELECT_DATA_IN_EDITABLE_GRID;
/**
* Constructor.
* @param colType column type; possible values: Column.TYPE_INT, Column.TYPE_DEC, Column.TYPE_CURRENCY, Column.TYPE_PERC
* @param decimals number of decimals
* @param required flag used to set mandatory property of the cell
* @param dynamicSettings dynamic settings used to reset numeric editor properties for each grid row
* @param maxCharacters dynamic settings used to control the numbers of characteres when you are typing
*/
public NumericCellEditor(int colType, int decimals, boolean required, double minValue, double maxValue,
IntegerColumnSettings dynamicSettings,boolean selectDataOnEdit,int maxCharacters) {
field = new NumericControl() {
public boolean processKeyBinding(KeyStroke ks, KeyEvent e,
int condition, boolean pressed) {
if (e.getSource()!=null && e.getSource() instanceof org.openswing.swing.table.client.Grid) {
field.processKeyEvent(e);
}
else if (e.getKeyChar()=='\t' || e.getKeyChar()=='\n')
stopCellEditing();
return true;
}
};
this.field.setDecimals(decimals);
this.required = required;
this.dynamicSettings = dynamicSettings;
this.selectDataOnEdit = selectDataOnEdit;
field.setMaxCharacters(maxCharacters);
field.setMinValue(minValue);
field.setMaxValue(maxValue);
field.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
if (e.getKeyCode()==e.VK_TAB) {
stopCellEditing();
table.requestFocus();
try {
table.setColumnSelectionInterval(col + 1, col + 1);
}
catch (Exception ex) {
}
}
}
});
}
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row,
int column) {
this.table = table;
this.row = row;
this.col = column;
JComponent c = (JComponent)_prepareEditor(value);
if (required) {
c.setBorder(BorderFactory.createLineBorder(ClientSettings.GRID_REQUIRED_CELL_BORDER));
// c.setBorder(new CompoundBorder(new RequiredBorder(),c.getBorder()));
}
return c;
}
/**
* Stop cell editing. This method stops cell editing (effectively committing the edit) only if the data entered is validated successfully.
* @return <code>true</code> if cell editing may stop, and <code>false</code> otherwise.
*/
public final boolean stopCellEditing() {
return validate();
}
/**
* Perform the validation.
*/
private boolean validate() {
// boolean ok = field.validateInput();
boolean ok = true;
if(ok)
fireEditingStopped();
return ok;
}
/**
* @return current value, as a <code>Double</code>
*/
public Object getCellEditorValue() {
// field.validateInput();
if (field.getText()==null || field.getText().length()==0)
return null;
return field.getValue();
}
/**
* Prepare the editor for a value.
*/
private Component _prepareEditor(Object value) {
if (row!=-1 && dynamicSettings!=null) {
if (dynamicSettings instanceof DecimalColumnSettings)
field.setDecimals(((DecimalColumnSettings)dynamicSettings).getDecimals(row));
field.setMinValue(dynamicSettings.getMinValue(row));
field.setMaxValue(dynamicSettings.getMaxValue(row));
}
if(value!=null && value.getClass().getSuperclass() == Number.class) {
field.setText(((Number)value).toString());
if (selectDataOnEdit)
field.select(0,field.getText().length());
}
else
field.setText(null);
return field;
}
public Component getTreeCellEditorComponent(JTree tree, Object value,
boolean isSelected,
boolean expanded, boolean leaf,
int row) {
this.row = row;
return _prepareEditor(value);
}
public final void finalize() {
dynamicSettings = null;
table = null;
field = null;
}
}