|
1
56 package org.objectstyle.cayenne.modeler.util;
57
58 import java.awt.Color  ;
59 import java.awt.event.ActionEvent ;
60 import java.awt.event.ActionListener ;
61
62 import javax.swing.InputVerifier ;
63 import javax.swing.JComponent ;
64 import javax.swing.JTextArea ;
65 import javax.swing.JTextField ;
66 import javax.swing.event.DocumentEvent ;
67 import javax.swing.event.DocumentListener ;
68 import javax.swing.text.JTextComponent ;
69
70 import org.objectstyle.cayenne.modeler.dialog.validator.ValidatorDialog;
71 import org.objectstyle.cayenne.validation.ValidationException;
72
73
79 public abstract class TextAdapter {
80
81 protected Color defaultBGColor;
82 protected Color errorColor;
83 protected JTextComponent textComponent;
84 protected String defaultToolTip;
85 protected boolean modelUpdateDisabled;
86
87 public TextAdapter(JTextField textField) {
88 this(textField, true, false, true);
89 }
90
91 public TextAdapter(JTextField textField, boolean checkOnFocusLost,
92 boolean checkOnTyping, boolean checkOnEnter) {
93 this(textField, true, false);
94
95 if (checkOnEnter) {
96
97 textField.addActionListener(new ActionListener () {
98
99 public void actionPerformed(ActionEvent e) {
100 updateModel();
101 }
102 });
103 }
104 }
105
106 public TextAdapter(JTextArea textField) {
107 this(textField, false, true);
108 }
109
110 public TextAdapter(JTextComponent textComponent, boolean checkOnFocusLost,
111 boolean checkOnTyping) {
112 this.errorColor = ValidatorDialog.WARNING_COLOR;
113 this.defaultBGColor = textComponent.getBackground();
114 this.defaultToolTip = textComponent.getToolTipText();
115 this.textComponent = textComponent;
116
117 if (checkOnFocusLost) {
118 textComponent.setInputVerifier(new InputVerifier () {
119
120 public boolean verify(JComponent c) {
121 updateModel();
122 return true;
124 }
125 });
126 }
127
128 if (checkOnTyping) {
129 textComponent.getDocument().addDocumentListener(new DocumentListener () {
130
131 public void insertUpdate(DocumentEvent e) {
132 verifyTextChange(e);
133 }
134
135 public void changedUpdate(DocumentEvent e) {
136 verifyTextChange(e);
137 }
138
139 public void removeUpdate(DocumentEvent e) {
140 verifyTextChange(e);
141 }
142
143 void verifyTextChange(DocumentEvent e) {
144 if (!modelUpdateDisabled) {
145 updateModel();
146 }
147 }
148 });
149 }
150 }
151
152
155 protected abstract void updateModel(String text) throws ValidationException;
156
157
160 public JTextComponent getComponent() {
161 return textComponent;
162 }
163
164
167 public void setText(String text) {
168 modelUpdateDisabled = true;
169 try {
170 clear();
171 textComponent.setText(text);
172 }
173 finally {
174 modelUpdateDisabled = false;
175 }
176 }
177
178 protected void updateModel() {
179 try {
180 updateModel(textComponent.getText());
181 clear();
182 }
183 catch (ValidationException vex) {
184 textComponent.setBackground(errorColor);
185 textComponent.setToolTipText(vex.getUnlabeledMessage());
186 }
187 }
188
189 protected void clear() {
190 textComponent.setBackground(defaultBGColor);
191 textComponent.setToolTipText(defaultToolTip);
192 }
193 } |
Popular Tags |
Java API By Example, From Geeks To Geeks.