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FR [ 1820783 ] AutoCompletion: posibility to toggle strict mode 

* fixed javadoc
* fixed indentation
This commit is contained in:
teo_sarca 2007-11-06 07:55:58 +00:00
parent 27efd9b851
commit 3f1753319e
1 changed files with 104 additions and 36 deletions
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140
client/src/org/compiere/grid/ed/AutoCompletion.java
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@ -1,30 +1,55 @@
package org.compiere.grid.ed;
import java.awt.event.*;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.*;
import javax.swing.text.*;
import org.compiere.swing.CComboBox;
//phib: this is from http://www.orbital-computer.de/JComboBox
//with some minor revisions for Adempiere
/* This work is hereby released into the Public Domain. /* This work is hereby released into the Public Domain.
* To view a copy of the public domain dedication, visit * To view a copy of the public domain dedication, visit
* http://creativecommons.org/licenses/publicdomain/ * http://creativecommons.org/licenses/publicdomain/
*/ */
package org.compiere.grid.ed;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.ComboBoxEditor;
import javax.swing.ComboBoxModel;
import javax.swing.UIManager;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.JTextComponent;
import javax.swing.text.PlainDocument;
import org.compiere.swing.CComboBox;
/**
* Auto completion behaviour for a combo box
*
* @author phib: this is from http://www.orbital-computer.de/JComboBox
* with some minor revisions for Adempiere
* @author Teo Sarca, SC ARHIPAC SERVICE SRL
* <li>BF [ 1735043 ] AutoCompletion: drop down box is showed even if i press Caps
* <li>FR [ 1820783 ] AutoCompletion: posibility to toggle strict mode
* <li>BF [ 1820778 ] ESC(cancel editing) key not working if you are on VComboBox
*/
public class AutoCompletion extends PlainDocument { public class AutoCompletion extends PlainDocument {
private static final long serialVersionUID = 1L;
CComboBox comboBox; CComboBox comboBox;
ComboBoxModel model; ComboBoxModel model;
JTextComponent editor; JTextComponent editor;
// flag to indicate if setSelectedItem has been called /**
// subsequent calls to remove/insertString should be ignored * Flag to indicate if setSelectedItem has been called
* subsequent calls to remove/insertString should be ignored
*/
boolean selecting=false; boolean selecting=false;
boolean hidePopupOnFocusLoss; boolean hidePopupOnFocusLoss;
boolean hitBackspace=false; boolean hitBackspace=false;
boolean hitBackspaceOnSelection; boolean hitBackspaceOnSelection;
/** Strict mode */
private boolean m_strictMode = true;
KeyListener editorKeyListener; KeyListener editorKeyListener;
FocusListener editorFocusListener; FocusListener editorFocusListener;
@ -54,17 +79,22 @@ public class AutoCompletion extends PlainDocument {
return; return;
} }
if (comboBox.isDisplayable()) comboBox.setPopupVisible(true); if (comboBox.isDisplayable())
comboBox.setPopupVisible(true);
if(!m_strictMode)
return;
hitBackspace=false; hitBackspace=false;
switch (e.getKeyCode()) { switch (e.getKeyCode()) {
// determine if the pressed key is backspace (needed by the remove method) // determine if the pressed key is backspace (needed by the remove method)
case KeyEvent.VK_BACK_SPACE : hitBackspace=true; case KeyEvent.VK_BACK_SPACE :
hitBackspaceOnSelection=editor.getSelectionStart()!=editor.getSelectionEnd(); hitBackspace=true;
break; hitBackspaceOnSelection=editor.getSelectionStart()!=editor.getSelectionEnd();
// ignore delete key break;
case KeyEvent.VK_DELETE : e.consume(); // ignore delete key
UIManager.getLookAndFeel().provideErrorFeedback(comboBox); case KeyEvent.VK_DELETE :
break; e.consume();
UIManager.getLookAndFeel().provideErrorFeedback(comboBox);
break;
} }
} }
}; };
@ -87,11 +117,26 @@ public class AutoCompletion extends PlainDocument {
highlightCompletedText(0); highlightCompletedText(0);
} }
/**
* Enable auto completion for a combo box (strict mode)
* @param comboBox
*/
public static void enable(CComboBox comboBox) { public static void enable(CComboBox comboBox) {
enable(comboBox, true);
}
/**
* Enable auto completion for a combo box
* @param comboBox
* @param strictMode true if you want to set strict mode
*/
public static void enable(CComboBox comboBox, boolean strictMode) {
// has to be editable // has to be editable
comboBox.setEditable(true); comboBox.setEditable(true);
// change the editor's document // change the editor's document
new AutoCompletion(comboBox); AutoCompletion ac = new AutoCompletion(comboBox);
// set strict mode
ac.setStrictMode(strictMode);
} }
void configureEditor(ComboBoxEditor newEditor) { void configureEditor(ComboBoxEditor newEditor) {
@ -140,15 +185,20 @@ public class AutoCompletion extends PlainDocument {
if (item != null) { if (item != null) {
setSelectedItem(item); setSelectedItem(item);
} else { } else {
if ( offs == 0 ) if (m_strictMode) {
setSelectedItem(null); //null is valid for non-mandatory fields if ( offs == 0 )
//so if cursor is at start of line allow it setSelectedItem(null); //null is valid for non-mandatory fields
// otherwise keep old item selected if there is no better match //so if cursor is at start of line allow it
else // otherwise keep old item selected if there is no better match
item = comboBox.getSelectedItem(); else
// undo the insertion as there isn't a valid match item = comboBox.getSelectedItem();
offs = offs-str.length(); // undo the insertion as there isn't a valid match
UIManager.getLookAndFeel().provideErrorFeedback(comboBox); offs = offs-str.length();
UIManager.getLookAndFeel().provideErrorFeedback(comboBox);
}
else {
return;
}
} }
if (item != null) if (item != null)
@ -158,7 +208,11 @@ public class AutoCompletion extends PlainDocument {
highlightCompletedText(offs+str.length()); highlightCompletedText(offs+str.length());
} }
private void setText(String text) { /**
* Set text
* @param text
*/
public void setText(String text) {
try { try {
// remove all text and insert the completed string // remove all text and insert the completed string
super.remove(0, getLength()); super.remove(0, getLength());
@ -198,7 +252,21 @@ public class AutoCompletion extends PlainDocument {
return null; return null;
} }
// checks if str1 starts with str2 - ignores case /**
* Set strict mode. If the strict mode is enabled, you can't enter any other values than the
* ones from combo box list.
* @param mode true if strict mode
*/
public void setStrictMode (boolean mode) {
m_strictMode = mode;
}
/**
* Checks if str1 starts with str2 (ignores case)
* @param str1
* @param str2
* @return true if str1 starts with str2
*/
private boolean startsWithIgnoreCase(String str1, String str2) { private boolean startsWithIgnoreCase(String str1, String str2) {
return str1.toUpperCase().startsWith(str2.toUpperCase()); return str1.toUpperCase().startsWith(str2.toUpperCase());
} }