svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.swing / org.gvsig.expressionevaluator.swing.impl / src / main / java / org / gvsig / expressionevaluator / swing / impl / DefaultCalculatorController.java @ 44644
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package org.gvsig.expressionevaluator.swing.impl; |
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import java.awt.Color; |
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import java.awt.event.ActionEvent; |
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import java.awt.event.ActionListener; |
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import java.awt.event.FocusEvent; |
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import java.awt.event.FocusListener; |
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import java.awt.event.KeyAdapter; |
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import java.awt.event.KeyEvent; |
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import org.gvsig.expressionevaluator.swing.CalculatorController; |
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import java.util.Objects; |
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import javax.swing.AbstractAction; |
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import javax.swing.Action; |
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import javax.swing.JPopupMenu; |
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import javax.swing.Timer; |
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import javax.swing.event.ChangeEvent; |
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import javax.swing.event.ChangeListener; |
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import javax.swing.event.DocumentEvent; |
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import javax.swing.event.DocumentListener; |
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import javax.swing.text.JTextComponent; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.expressionevaluator.Expression; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorManager; |
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import org.gvsig.expressionevaluator.ExpressionSyntaxException; |
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import org.gvsig.expressionevaluator.MutableSymbolTable; |
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import org.gvsig.expressionevaluator.SymbolTable; |
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import org.gvsig.expressionevaluator.swing.ExpressionEvaluatorSwingManager; |
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import org.gvsig.tools.dataTypes.DataTypes; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dataTypes.CoercionException; |
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import org.gvsig.tools.dataTypes.DataTypesManager; |
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import org.gvsig.tools.i18n.I18nManager; |
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import org.gvsig.tools.swing.api.ChangeListenerHelper; |
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import org.gvsig.tools.swing.api.ToolsSwingLocator; |
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import org.gvsig.tools.swing.api.ToolsSwingManager; |
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import org.gvsig.tools.swing.api.windowmanager.Dialog; |
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import org.gvsig.tools.swing.api.windowmanager.WindowManager; |
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import org.gvsig.tools.swing.api.windowmanager.WindowManager_v2; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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*
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* @author jjdelcerro
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*/
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@SuppressWarnings("UseSpecificCatch") |
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class DefaultCalculatorController<T> |
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implements CalculatorController<T> , ChangeListenerHelper
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{ |
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private static final Logger LOGGER = LoggerFactory.getLogger(DefaultCalculatorController.class); |
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private static final Color COLOR_ERROR = new Color(255,225,232); |
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private final JTextComponent text; |
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private final int dataType; |
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private final MutableSymbolTable defaultSymbolTable; |
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private final Color color_ok; |
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private final ExpressionEvaluatorSwingManager swingManager; |
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private DefaultExpressionBuilderConfig config;
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private Expression expression; |
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private boolean warning; |
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private final ChangeListenerHelper changeListenerHelper; |
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private final Timer fireChangeTimer; |
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private String lastText; |
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private final ExpressionEvaluatorManager manager; |
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public DefaultCalculatorController(ExpressionEvaluatorSwingManager manager, final JTextComponent text, int dataType) { |
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ToolsSwingManager toolsSwingManager = ToolsSwingLocator.getToolsSwingManager(); |
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I18nManager i18n = ToolsLocator.getI18nManager(); |
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this.swingManager = manager;
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this.manager = ExpressionEvaluatorLocator.getManager();
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this.config = null; |
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this.expression = null; |
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this.warning = false; |
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this.changeListenerHelper = toolsSwingManager.createChangeListenerHelper();
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this.text = text;
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this.dataType = dataType;
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this.color_ok = this.text.getBackground(); |
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this.defaultSymbolTable = ExpressionEvaluatorLocator.getManager().createSymbolTable();
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this.text.addKeyListener(new KeyAdapter() { |
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@Override
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public void keyPressed(KeyEvent e) { |
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if( e.getKeyCode()==KeyEvent.VK_C && e.isControlDown() ) { |
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doCalculate(true);
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} |
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} |
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}); |
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this.text.getDocument().addDocumentListener(new DocumentListener() { |
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@Override
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public void insertUpdate(DocumentEvent e) { |
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fireChangeEvent(); |
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} |
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@Override
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public void removeUpdate(DocumentEvent e) { |
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fireChangeEvent(); |
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} |
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@Override
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public void changedUpdate(DocumentEvent e) { |
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fireChangeEvent(); |
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} |
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}); |
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this.text.addFocusListener(new FocusListener() { |
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@Override
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public void focusLost(FocusEvent e) { |
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doCalculate(true);
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} |
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@Override
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public void focusGained(FocusEvent e) { |
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doCalculate(true);
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} |
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}); |
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toolsSwingManager.addClearButton(this.text, new ActionListener() { |
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@Override
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public void actionPerformed(ActionEvent e) { |
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set(null);
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} |
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}); |
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toolsSwingManager.setDefaultPopupMenu(this.text);
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JPopupMenu popupMenu = this.text.getComponentPopupMenu(); |
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Action showExpressionBuilderAction = new AbstractAction(i18n.getTranslation("_Show_expression_builder")) { |
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@Override
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public void actionPerformed(ActionEvent e) { |
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doShowExpressionBuilder(); |
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} |
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}; |
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popupMenu.addSeparator(); |
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popupMenu.add(showExpressionBuilderAction); |
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this.fireChangeTimer = new Timer(100, new ActionListener() { |
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@Override
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public void actionPerformed(ActionEvent e) { |
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fireEvent(); |
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} |
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}); |
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} |
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private void fireChangeEvent() { |
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this.fireChangeTimer.setRepeats(false); |
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this.fireChangeTimer.restart();
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} |
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private void doShowExpressionBuilder() { |
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if( this.config == null ) { |
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this.config = new DefaultExpressionBuilderConfig(this.swingManager); |
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this.config.addSymbolTable(this.defaultSymbolTable); |
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} |
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if( this.expression == null ) { |
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this.expression = ExpressionEvaluatorLocator.getManager().createExpression();
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} |
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expression.setPhrase(this.text.getText());
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DefaultJExpressionBuilder panel = new DefaultJExpressionBuilder(this.swingManager, this.config); |
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panel.setExpression(this.expression);
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WindowManager_v2 windowManager = (WindowManager_v2) ToolsSwingLocator.getWindowManager(); |
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Dialog dialog = windowManager.createDialog(
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panel.asJComponent(), |
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"Expression builder",
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null,
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WindowManager_v2.BUTTONS_OK_CANCEL |
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); |
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dialog.show(WindowManager.MODE.DIALOG); |
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if( dialog.getAction()==WindowManager_v2.BUTTON_OK ) {
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this.text.setText(panel.getExpression().getPhrase());
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} |
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} |
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@Override
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public void addSymbolTable(SymbolTable symbolTable) { |
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this.defaultSymbolTable.addSymbolTable(symbolTable);
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} |
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@Override
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public MutableSymbolTable getSymbolTable() {
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return this.defaultSymbolTable; |
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} |
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private Object doCalculate(boolean updateText) { |
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if( !this.text.isEditable() ||!this.text.isEnabled() ) { |
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return null; |
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} |
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String source = this.text.getText(); |
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try {
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if( !StringUtils.isBlank(source) ) {
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final Object value = this.manager.evaluate(this.defaultSymbolTable, source); |
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if( updateText ) {
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String s = Utils.repr(value);
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if( !StringUtils.equals(s, this.lastText) ) { |
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this.setWarning(false); |
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this.lastText = s;
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this.text.setText(this.lastText); |
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} |
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} |
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return value;
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} |
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this.setWarning(false); |
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} catch (ExpressionSyntaxException ex) {
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this.setWarning(true, ex.getDescription()); |
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} catch (Exception ex) { |
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this.setWarning(true); |
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} |
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return null; |
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} |
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public void setWarning(boolean warning) { |
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this.setWarning(warning, null); |
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} |
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public void setWarning(boolean warning, String description) { |
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this.warning = warning;
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if( warning ) {
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this.text.setBackground(COLOR_ERROR);
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this.text.setToolTipText(description==null?"":description); |
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} else {
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this.text.setBackground(this.color_ok); |
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this.text.setToolTipText(""); |
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} |
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} |
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@Override
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public boolean getWarning() { |
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return warning;
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} |
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@Override
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public T get(T defaultValue) {
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T v = this.get();
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if( v==null ) { |
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return defaultValue;
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} |
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return v;
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} |
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@Override
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public T get() {
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Object value;
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if( !this.text.isEditable() ||!this.text.isEnabled() ) { |
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value = this.text.getText();
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} else {
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value = doCalculate(false);
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} |
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try {
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DataTypesManager dataManager = ToolsLocator.getDataTypesManager(); |
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value = dataManager.coerce(this.dataType, value);
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return (T) value;
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} catch (CoercionException ex) {
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return null; |
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} |
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} |
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@Override
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public void set(T value) { |
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this.text.setText(Objects.toString(value, "")); |
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this.text.setBackground(this.color_ok); |
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} |
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@Override
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public void coerceAndSet(Object value) { |
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if (this.dataType != DataTypes.OBJECT) { |
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DataTypesManager dataManager = ToolsLocator.getDataTypesManager(); |
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try {
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value = dataManager.coerce(this.dataType, value);
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} catch (CoercionException ex) {
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} |
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} |
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this.text.setText(Objects.toString(value, "")); |
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this.text.setBackground(this.color_ok); |
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} |
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@Override
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public void setEnabled(boolean enabled) { |
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this.text.setEnabled(enabled);
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} |
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@Override
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public boolean isEnabled() { |
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return this.text.isEnabled(); |
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} |
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@Override
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public void setEditable(boolean editable) { |
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this.text.setEditable(editable);
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} |
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@Override
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public boolean isEditable() { |
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return this.text.isEditable(); |
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} |
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@Override
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public void addChangeListener(ChangeListener cl) { |
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this.changeListenerHelper.addChangeListener(cl);
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} |
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@Override
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public ChangeListener[] getChangeListeners() { |
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return this.changeListenerHelper.getChangeListeners(); |
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} |
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@Override
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public void removeChangeListener(ChangeListener cl) { |
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this.changeListenerHelper.removeAllChangeListener();
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} |
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@Override
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public void removeAllChangeListener() { |
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this.changeListenerHelper.removeAllChangeListener();
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} |
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@Override
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public boolean hasChangeListeners() { |
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return this.changeListenerHelper.hasChangeListeners(); |
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} |
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@Override
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public void fireEvent() { |
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this.changeListenerHelper.fireEvent();
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} |
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@Override
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public void fireEvent(ChangeEvent ce) { |
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this.changeListenerHelper.fireEvent(ce);
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} |
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} |