/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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 or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.swing.text;
import java.awt.CardLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.concurrent.atomic.AtomicBoolean;
import javax.swing.GroupLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JToggleButton;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import org.smallmind.nutsnbolts.lang.UnknownSwitchCaseException;
import org.smallmind.nutsnbolts.util.WeakEventListenerList;
import org.smallmind.swing.ComponentUtility;
public class FormulaTextField extends JPanel implements ActionListener, ItemListener, DocumentListener {
private static final ImageIcon COLLAPSE_ICON = new ImageIcon(ClassLoader.getSystemResource("org/smallmind/swing/system/navigate_open_16.png"));
private static final ImageIcon EXPAND_ICON = new ImageIcon(ClassLoader.getSystemResource("org/smallmind/swing/system/navigate_close_16.png"));
private static final ImageIcon FORMULA_ICON = new ImageIcon(ClassLoader.getSystemResource("org/smallmind/swing/system/text_formula_16.png"));
private static final ImageIcon TEXT_ICON = new ImageIcon(ClassLoader.getSystemResource("org/smallmind/swing/system/text_16.png"));
private static enum CardState {COLLAPSED, EXPANDED}
private final WeakEventListenerList<ItemListener> itemListenerList = new WeakEventListenerList<ItemListener>();
private final WeakEventListenerList<DocumentListener> documentListenerList = new WeakEventListenerList<DocumentListener>();
private CardLayout cardLayout;
private CardState cardState;
private JScrollPane expandedScrollPane;
private JTextArea expandedTextArea;
private SlimTextField collapsedTextField;
private JToggleButton expandedFormulaButton;
private JToggleButton collapsedFormulaButton;
private AtomicBoolean documentSensitive = new AtomicBoolean(true);
public FormulaTextField () {
this(null, false);
}
public FormulaTextField (boolean formula) {
this(null, formula);
}
public FormulaTextField (String text) {
this(text, 5, false);
}
public FormulaTextField (String text, boolean formula) {
this(text, 5, formula);
}
public FormulaTextField (int rows) {
this(null, rows, false);
}
public FormulaTextField (int rows, boolean formula) {
this(null, rows, formula);
}
public FormulaTextField (String text, int rows) {
this(text, rows, false);
}
public FormulaTextField (String text, int rows, boolean formula) {
JPanel collapsedPanel;
JPanel expandedPanel;
GroupLayout collapsedGroupLayout;
GroupLayout expandedGroupLayout;
JButton collapseButton;
JButton expandButton;
int textFieldHeight;
setLayout(cardLayout = new CardLayout());
collapsedPanel = new JPanel();
collapsedPanel.setLayout(collapsedGroupLayout = new GroupLayout(collapsedPanel));
expandedPanel = new JPanel();
expandedPanel.setLayout(expandedGroupLayout = new GroupLayout(expandedPanel));
collapseButton = new JButton(COLLAPSE_ICON);
collapseButton.setFocusable(false);
collapseButton.addActionListener(this);
expandButton = new JButton(EXPAND_ICON);
expandButton.setFocusable(false);
expandButton.addActionListener(this);
collapsedFormulaButton = new JToggleButton(TEXT_ICON, formula);
collapsedFormulaButton.setSelectedIcon(FORMULA_ICON);
collapsedFormulaButton.setFocusable(false);
collapsedFormulaButton.setToolTipText("evaluate as text/formula");
collapsedFormulaButton.addItemListener(this);
expandedFormulaButton = new JToggleButton(TEXT_ICON, formula);
expandedFormulaButton.setSelectedIcon(FORMULA_ICON);
expandedFormulaButton.setFocusable(false);
expandedFormulaButton.setToolTipText("evaluate as text/formula");
expandedFormulaButton.addItemListener(this);
collapsedTextField = new SlimTextField(text);
collapsedTextField.getDocument().addDocumentListener(this);
expandedScrollPane = new JScrollPane(expandedTextArea = new JTextArea(text, rows, 0), JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
expandedTextArea.getDocument().addDocumentListener(this);
textFieldHeight = (int)collapsedTextField.getPreferredSize().getHeight() - 1;
collapsedGroupLayout.setHorizontalGroup(collapsedGroupLayout.createSequentialGroup().addComponent(collapsedTextField).addComponent(expandButton, 22, 22, 22).addComponent(collapsedFormulaButton, 22, 22, 22));
collapsedGroupLayout.setVerticalGroup(collapsedGroupLayout.createParallelGroup(GroupLayout.Alignment.LEADING).addComponent(collapsedTextField, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(expandButton, textFieldHeight, textFieldHeight, textFieldHeight).addComponent(collapsedFormulaButton, textFieldHeight, textFieldHeight, textFieldHeight));
expandedGroupLayout.setHorizontalGroup(expandedGroupLayout.createSequentialGroup().addComponent(expandedScrollPane).addComponent(collapseButton, 22, 22, 22).addComponent(expandedFormulaButton, 22, 22, 22));
expandedGroupLayout.setVerticalGroup(expandedGroupLayout.createParallelGroup(GroupLayout.Alignment.LEADING).addComponent(expandedScrollPane, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE).addComponent(collapseButton, textFieldHeight, textFieldHeight, textFieldHeight).addComponent(expandedFormulaButton, textFieldHeight, textFieldHeight, textFieldHeight));
add(collapsedPanel, "field");
add(expandedPanel, "area");
setMinimumSize(new Dimension(144, ComponentUtility.getMinimumHeight(collapsedTextField)));
setPreferredSize(new Dimension(Math.min(ComponentUtility.getPreferredWidth(collapsedTextField) + 44, Short.MAX_VALUE), ComponentUtility.getPreferredHeight(collapsedTextField)));
setMaximumSize(new Dimension(Short.MAX_VALUE, ComponentUtility.getMaximumHeight(collapsedTextField)));
cardState = CardState.COLLAPSED;
}
@Override
public void setEnabled (boolean enabled) {
collapsedTextField.setEnabled(enabled);
expandedTextArea.setEnabled(enabled);
collapsedFormulaButton.setEnabled(enabled);
expandedFormulaButton.setEnabled(enabled);
super.setEnabled(enabled);
}
public String getText () {
return expandedTextArea.getText();
}
public boolean containsDocument (Document document) {
return (collapsedTextField.getDocument() == document) || (expandedTextArea.getDocument() == document);
}
public boolean containsFormulaButton (JToggleButton toggleButton) {
return (toggleButton == collapsedFormulaButton) || (toggleButton == expandedFormulaButton);
}
public void setText (String text) {
switch (cardState) {
case COLLAPSED:
collapsedTextField.setText(text);
break;
case EXPANDED:
expandedTextArea.setText(text);
break;
default:
throw new UnknownSwitchCaseException(cardState.name());
}
}
public boolean isFormula () {
return expandedFormulaButton.isSelected();
}
@Override
public synchronized void actionPerformed (ActionEvent actionEvent) {
cardLayout.next(this);
switch (cardState) {
case COLLAPSED:
setMinimumSize(expandedScrollPane.getMinimumSize());
setPreferredSize(expandedScrollPane.getPreferredSize());
setMaximumSize(expandedScrollPane.getMaximumSize());
cardState = CardState.EXPANDED;
break;
case EXPANDED:
setMinimumSize(new Dimension(ComponentUtility.getMinimumWidth(expandedScrollPane), ComponentUtility.getMinimumHeight(collapsedTextField)));
setPreferredSize(new Dimension(ComponentUtility.getPreferredWidth(expandedScrollPane), ComponentUtility.getPreferredHeight(collapsedTextField)));
setMaximumSize(new Dimension(ComponentUtility.getMaximumWidth(expandedScrollPane), ComponentUtility.getMaximumHeight(collapsedTextField)));
cardState = CardState.COLLAPSED;
break;
default:
throw new UnknownSwitchCaseException(cardState.name());
}
doLayout();
}
@Override
public synchronized void itemStateChanged (ItemEvent itemEvent) {
if (itemEvent.getSource() == collapsedFormulaButton) {
expandedFormulaButton.setSelected(collapsedFormulaButton.isSelected());
}
else {
collapsedFormulaButton.setSelected(expandedFormulaButton.isSelected());
}
for (ItemListener itemListener : itemListenerList) {
itemListener.itemStateChanged(itemEvent);
}
}
@Override
public synchronized void insertUpdate (DocumentEvent documentEvent) {
if (documentSensitive.get()) {
documentSensitive.set(false);
try {
switch (cardState) {
case COLLAPSED:
expandedTextArea.getDocument().insertString(documentEvent.getOffset(), collapsedTextField.getDocument().getText(documentEvent.getOffset(), documentEvent.getLength()), null);
break;
case EXPANDED:
collapsedTextField.getDocument().insertString(documentEvent.getOffset(), expandedTextArea.getDocument().getText(documentEvent.getOffset(), documentEvent.getLength()), null);
break;
default:
throw new UnknownSwitchCaseException(cardState.name());
}
}
catch (BadLocationException badLocationException) {
throw new RuntimeException(badLocationException);
}
for (DocumentListener documentListener : documentListenerList) {
documentListener.insertUpdate(documentEvent);
}
documentSensitive.set(true);
}
}
@Override
public synchronized void removeUpdate (DocumentEvent documentEvent) {
if (documentSensitive.get()) {
documentSensitive.set(false);
try {
switch (cardState) {
case COLLAPSED:
expandedTextArea.getDocument().remove(documentEvent.getOffset(), documentEvent.getLength());
break;
case EXPANDED:
collapsedTextField.getDocument().remove(documentEvent.getOffset(), documentEvent.getLength());
break;
default:
throw new UnknownSwitchCaseException(cardState.name());
}
}
catch (BadLocationException badLocationException) {
throw new RuntimeException(badLocationException);
}
for (DocumentListener documentListener : documentListenerList) {
documentListener.removeUpdate(documentEvent);
}
documentSensitive.set(true);
}
}
@Override
public synchronized void changedUpdate (DocumentEvent documentEvent) {
if (documentSensitive.get()) {
documentSensitive.set(false);
for (DocumentListener documentListener : documentListenerList) {
documentListener.changedUpdate(documentEvent);
}
documentSensitive.set(true);
}
}
public synchronized void addItemListener (ItemListener itemListener) {
itemListenerList.addListener(itemListener);
}
public synchronized void removeItemListener (ItemListener itemListener) {
itemListenerList.removeListener(itemListener);
}
public synchronized void addDocumentListener (DocumentListener documentListener) {
documentListenerList.addListener(documentListener);
}
public synchronized void removeDocumentListener (DocumentListener documentListener) {
documentListenerList.removeListener(documentListener);
}
}