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1
7
8 package org.jdesktop.swing.form;
9
10 import org.jdesktop.swing.data.MetaData;
11 import org.jdesktop.swing.data.NumberMetaData;
12 import org.jdesktop.swing.data.StringMetaData;
13
14 import org.jdesktop.swing.JXGlassBox;
15
16 import org.jdesktop.swing.binding.Binding;
17
18 import java.awt.AlphaComposite  ;
19 import java.awt.Color ;
20 import java.awt.Component ;
21 import java.awt.Composite ;
22 import java.awt.Container ;
23 import java.awt.Font ;
24 import java.awt.Graphics ;
25 import java.awt.Graphics2D ;
26 import java.awt.GridBagConstraints ;
27 import java.awt.GridBagLayout ;
28 import java.awt.Insets ;
29 import java.awt.Point ;
30 import java.awt.Rectangle ;
31 import java.awt.event.ActionEvent ;
32 import java.awt.event.ActionListener ;
33 import java.awt.event.FocusEvent ;
34 import java.awt.event.FocusListener ;
35 import java.awt.event.MouseEvent ;
36
37 import java.beans.PropertyChangeEvent ;
38 import java.beans.PropertyChangeListener ;
39
40 import java.net.URL ;
41
42 import javax.swing.Box ;
43 import javax.swing.BoxLayout ;
44 import javax.swing.Icon ;
45 import javax.swing.ImageIcon ;
46 import javax.swing.JComponent ;
47 import javax.swing.JLabel ;
48 import javax.swing.JRootPane ;
49 import javax.swing.SwingConstants ;
50 import javax.swing.SwingUtilities ;
51 import javax.swing.Timer ;
52 import javax.swing.border.Border ;
53 import javax.swing.border.CompoundBorder ;
54 import javax.swing.border.EmptyBorder ;
55 import javax.swing.border.LineBorder ;
56 import javax.swing.event.MouseInputAdapter ;
57
58
62
63 public class BindingBorder
64 implements Border {
65 private static final int PAD = 0;
66 private static Icon defaultValidIcon;
67 private static Icon defaultInvalidIcon;
68 private static Icon defaultRequiredIcon;
69
70 private Binding binding;
71 private Icon validIcon;
72 private Icon invalidIcon;
73 private Icon requiredIcon;
74 private int iconPosition;
75
76 private FocusListener focusListener;
77
78 private Rectangle validIconBounds = new Rectangle ();
79 private Timer messageTriggerTimer;
80 private int messageTriggerX;
81 private int messageTriggerY;
82 private JXGlassBox messageBox;
83
84 static {
85 URL url = BindingBorder.class.getResource("resources/blue-tipicon.png");
86 defaultValidIcon = new ImageIcon (url);
87
88 url = BindingBorder.class.getResource("resources/red-tipicon.png");
89 defaultInvalidIcon = new ImageIcon (url);
90
91 url = BindingBorder.class.getResource("resources/asterisk.8x8.png");
92 defaultRequiredIcon = new ImageIcon (url);
93 }
94
95 public BindingBorder(Binding binding) {
96 this(binding, SwingConstants.EAST);
97 }
98
99 public BindingBorder(Binding binding, int iconPosition) {
100 this(binding, defaultValidIcon, defaultInvalidIcon, iconPosition);
101 }
102
103 public BindingBorder(Binding binding,
104 Icon validIcon, Icon invalidIcon, int iconPosition) {
105 this(binding, validIcon, invalidIcon, null, iconPosition);
106 }
107
108 public BindingBorder(Binding binding,
109 Icon validIcon, Icon invalidIcon,
110 Icon requiredIcon,
111 int iconPosition) {
112 this.binding = binding;
113 this.validIcon = validIcon;
114 this.invalidIcon = invalidIcon;
115 this.iconPosition = iconPosition;
116 Component component = binding.getComponent();
117 MetaData metaData = binding.getDataModel().getMetaData(binding.getFieldName());
118 if (metaData.isRequired()) {
119 this.requiredIcon = requiredIcon;
120 }
121 binding.addPropertyChangeListener(new PropertyChangeListener () {
122 public void propertyChange(PropertyChangeEvent e) {
123 Binding binding = (Binding) e.getSource();
124 if (e.getPropertyName().equals("validState")) {
125 binding.getComponent().repaint();
126 }
127 }
128 });
129
130 addFocusListener(component);
131
132 messageTriggerTimer = new Timer (1000, new MessageTrigger());
133 MouseInputAdapter mouseAdapter = new MouseInputAdapter () {
134 public void mousePressed(MouseEvent e) {
135 int x = e.getX();
136 int y = e.getY();
137 if (!isMessageBoxShowing() && validIconBounds.contains(x, y)) {
138 if (messageTriggerTimer.isRunning()) {
139 messageTriggerTimer.stop();
140 }
141 showMessageBox(x, y);
142 }
143 }
144 public void mouseMoved(MouseEvent e) {
145 if (!isMessageBoxShowing()) {
146 int x = e.getX();
147 int y = e.getY();
148 if (!messageTriggerTimer.isRunning()) {
149 if (validIconBounds.contains(x, y)) {
150 messageTriggerX = x;
151 messageTriggerY = y;
152 messageTriggerTimer.start();
153 }
154 }
155 else {
156 if (!validIconBounds.contains(x, y)) {
157 messageTriggerTimer.stop();
158 }
159 }
160 }
161 }
162 public void mouseExited(MouseEvent e) {
163 if (messageTriggerTimer.isRunning()) {
164 messageTriggerTimer.stop();
165 }
166 }
167 };
168 component.addMouseMotionListener(mouseAdapter);
169 component.addMouseListener(mouseAdapter);
170 }
171
172 public Insets getBorderInsets(Component c) {
173 if (requiredIcon != null) {
174 return new Insets (0, 0, 0,
175 validIcon.getIconWidth() +
176 requiredIcon.getIconWidth() +
177 (3 * PAD));
178 }
179 return new Insets (0, 0, 0, validIcon.getIconWidth() + (2 * PAD));
180
181 }
182
183 public boolean isBorderOpaque() {
184 return false;
185 }
186
187 public void paintBorder(Component c, Graphics g, int x, int y,
188 int width, int height) {
189 Graphics2D g2d = (Graphics2D ) g;
190 Composite oldComp = null;
191 boolean paintValid = binding.getValidState() != Binding.INVALID;
192
193 if (!hasFocus(c)) {
194 oldComp = g2d.getComposite();
196 Composite alphaComp = AlphaComposite.getInstance(AlphaComposite.
197 SRC_OVER, 0.35f);
198 g2d.setComposite(alphaComp);
199 }
200 Icon validIcon = (paintValid ? this.validIcon :
201 this.invalidIcon);
202
203 int requiredIconSpace = (requiredIcon != null ?
204 requiredIcon.getIconWidth() + PAD : 0);
205
206 if (!isMessageBoxShowing()) {
207 validIconBounds.x = x + width - PAD - requiredIconSpace -
208 validIcon.getIconWidth();
209 if (iconPosition == SwingConstants.NORTH_EAST) {
210 validIconBounds.y = y + PAD;
211
212 } else if (iconPosition == SwingUtilities.EAST){ validIconBounds.y = y +
214 ((height - validIcon.getIconHeight())/2);
215 } else if (iconPosition == SwingUtilities.WEST) {
216 validIconBounds.y = y +
217 ((height - validIcon.getIconHeight())/2);
218 validIconBounds.x = x + width - PAD - requiredIconSpace -
219 validIcon.getIconWidth();
220
221 }
222 validIconBounds.width = validIcon.getIconWidth();
223 validIconBounds.height = validIcon.getIconHeight();
224 validIcon.paintIcon(c, g, validIconBounds.x, validIconBounds.y);
225 }
226
227 if (requiredIcon != null) {
228 int requiredX = x + width - PAD - requiredIcon.getIconWidth();
229 int requiredY = y + (height - requiredIcon.getIconHeight()) / 2;
230 requiredIcon.paintIcon(c, g, requiredX, requiredY);
231 }
232
233 if (!paintValid) {
234 Color save = g.getColor();
235 Color invalidColor = new Color (255, 0, 0, 225);
236 g.setColor(invalidColor);
237 g.drawRect(0, 0, c.getWidth(), c.getHeight());
238 g.drawRect(1, 1, c.getWidth() - 2, c.getHeight() - 2);
239 g.setColor(save);
240 }
241
242 if (oldComp != null) {
243 g2d.setComposite(oldComp);
244 }
245 }
246
247 private void addFocusListener(Component component) {
248 if (focusListener == null) {
249 focusListener = new FocusListener () {
250 public void focusGained(FocusEvent e) {
251 binding.getComponent().repaint();
252 }
253 public void focusLost(FocusEvent e) {
254 binding.getComponent().repaint();
255 }
256 };
257 }
258 component.addFocusListener(focusListener);
259 if (component instanceof Container ) {
262 Component children[] = ((Container )component).getComponents();
263 for(int i = 0; i < children.length; i++) {
264 addFocusListener(children[i]);
265 }
266 }
267 }
268
269 private boolean hasFocus(Component component) {
270 if (component.isFocusOwner()) {
271 return true;
272 }
273 if (component instanceof Container ) {
274 Component children[] = ( (Container ) component).getComponents();
275 for (int i = 0; i < children.length; i++) {
276 if (hasFocus(children[i])) {
277 return true;
278 }
279 }
280 }
281 return false;
282 }
283
284 private boolean isMessageBoxShowing() {
285 return (messageBox != null && messageBox.getParent() != null);
286 }
287
288
289 private void showMessageBox(int x, int y) {
290 JComponent component = binding.getComponent();
291 boolean valid = binding.getValidState() != Binding.INVALID;
292 Color borderColor = valid ? Color.blue : Color.red;
293 Icon messageIcon = (valid ? validIcon : invalidIcon);
294 MetaData metaData = binding.getDataModel().getMetaData(binding.
295 getFieldName());
296
297 messageBox = new JXGlassBox();
298 messageBox.setAlpha(0.95f);
299 messageBox.setBorder(new LineBorder (borderColor, 1));
300 GridBagLayout gridBag = new GridBagLayout ();
301 GridBagConstraints c = new GridBagConstraints ();
302 messageBox.setLayout(gridBag);
303
304 JLabel label = new JLabel (metaData.getLabel() + ":");
305 Font boldFont = label.getFont().deriveFont(Font.BOLD);
306 label.setFont(boldFont);
307 c.anchor = GridBagConstraints.NORTHWEST;
308 c.insets = new Insets (2,4,0,2);
309 gridBag.setConstraints(label, c);
310 messageBox.add(label);
311
312 Box textContent = new Box(BoxLayout.X_AXIS);
313 c.gridx = 1;
314 c.anchor = GridBagConstraints.NORTH;
315 c.insets = new Insets (2, 2, 2, 2);
316 gridBag.setConstraints(textContent, c);
317 messageBox.add(textContent);
318
319 JLabel iconLabel = new JLabel (messageIcon);
320 c.gridx = 2;
321 c.anchor = GridBagConstraints.NORTHEAST;
322 c.insets = new Insets (1,0,0,1);
323 gridBag.setConstraints(iconLabel, c);
324 messageBox.add(iconLabel);
325
326
327 textContent.add(Box.createHorizontalStrut(4));
328 Box content = new Box(BoxLayout.Y_AXIS);
329 textContent.add(content);
330
331 if (!valid) {
332 String errors[] = binding.getValidationErrors();
333 if (errors.length > 0) {
334 for (int i = 0; i < errors.length; i++) {
335 content.add(new JLabel (errors[i]));
336 }
337 }
338 else {
339 content.add(new JLabel ("contains invalid value"));
340 }
341 }
342 else {
343 content.add(new JLabel ("value must be of type " +
344 metaData.getElementClass().getName()));
345 content.add(new JLabel ("value is " +
346 (metaData.isRequired() ? "required" :
347 "optional")));
348 if (metaData instanceof NumberMetaData) {
349 NumberMetaData numberMetaData = (NumberMetaData) metaData;
350 Number minimum = numberMetaData.getMinimum();
351 if (minimum != null) {
352 content.add(new JLabel ("minimum value is " +
353 minimum.toString()));
354 }
355 Number maximum = numberMetaData.getMaximum();
356 if (maximum != null) {
357 content.add(new JLabel ("maximum value is " +
358 maximum.toString()));
359 }
360 }
361
362 }
363
368 Container glassPane = (Container ) component.getRootPane().
369 getGlassPane();
370 Component glassPaneChildren[] = glassPane.getComponents();
373 for(int i = 0; i < glassPaneChildren.length; i++) {
374 glassPaneChildren[i].setVisible(false);
375 glassPane.remove(glassPaneChildren[i]);
376 }
377 messageBox.showOnGlassPane(glassPane, component, x, y,
378 SwingConstants.TOP);
379
380 }
381
382 private class MessageTrigger implements ActionListener {
383 public void actionPerformed(ActionEvent e) {
384 messageTriggerTimer.stop();
385 showMessageBox(messageTriggerX, messageTriggerY);
386 }
387 }
388 }
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