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15 * accompanied this code).
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27 import swingjs.JSToolkit;
28 import swingjs.api.DOMNode;
29 import swingjs.api.JQueryObject;
30 import swingjs.api.JSFunction;
31 import jsjava.awt.Dimension;
32 import jsjava.awt.Insets;
33 import jsjava.awt.LayoutManager;
34 import jsjava.awt.event.ActionEvent;
35 import jsjavax.swing.AbstractAction;
36 import jsjavax.swing.Action;
37 import jsjavax.swing.ActionMap;
38 import jsjavax.swing.InputMap;
39 import jsjavax.swing.JComponent;
40 import jsjavax.swing.SwingUtilities;
41 import jsjavax.swing.UIManager;
42 import jsjavax.swing.plaf.ActionMapUIResource;
43 import jsjavax.swing.plaf.ComponentUI;
44 import jsjavax.swing.plaf.InputMapUIResource;
45 import jsjavax.swing.plaf.TextUI;
46 import jsjavax.swing.plaf.UIResource;
47 import jsjavax.swing.text.Caret;
48 import jsjavax.swing.text.DefaultEditorKit;
49 import jsjavax.swing.text.EditorKit;
50 import jsjavax.swing.text.JTextComponent;
51 import jsjavax.swing.text.TextAction;
52 //import jsjava.awt.KeyboardFocusManager;
53 //import jsjava.awt.datatransfer.DataFlavor;
54 //import jsjava.awt.datatransfer.Transferable;
55 //import jsjava.awt.datatransfer.UnsupportedFlavorException;
56 //import jsjava.awt.im.InputContext;
57 //import jsjava.io.IOException;
58 //import jsjava.io.InputStream;
59 //import jsjava.io.Reader;
60 //import jsjava.io.StringBufferInputStream;
61 //import jsjava.io.StringReader;
62 //import jsjava.io.StringWriter;
63 //import jsjavax.swing.plaf.basic.DragRecognitionSupport.BeforeDrag;
67 * Basis of a text components look-and-feel. This provides the basic editor view
68 * and controller services that may be useful when creating a look-and-feel for
69 * an extension of <code>JTextComponent</code>.
71 * Most state is held in the associated <code>JTextComponent</code> as bound
72 * properties, and the UI installs default values for the various properties.
73 * This default will install something for all of the properties. Typically, a
74 * LAF implementation will do more however. At a minimum, a LAF would generally
75 * install key bindings.
77 * This class also provides some concurrency support if the
78 * <code>Document</code> associated with the JTextComponent is a subclass of
79 * <code>AbstractDocument</code>. Access to the View (or View hierarchy) is
80 * serialized between any thread mutating the model and the Swing event thread
81 * (which is expected to render, do model/view coordinate translation, etc).
82 * <em>Any access to the root view should first
83 * acquire a read-lock on the AbstractDocument and release that lock
84 * in a finally block.</em>
86 * An important method to define is the {@link #getPropertyPrefix} method which
87 * is used as the basis of the keys used to fetch defaults from the UIManager.
88 * The string should reflect the type of TextUI (eg. TextField, TextArea, etc)
89 * without the particular LAF part of the name (eg Metal, Motif, etc).
91 * To build a view of the model, one of the following strategies can be
95 * One strategy is to simply redefine the ViewFactory interface in the UI. By
96 * default, this UI itself acts as the factory for View implementations. This is
97 * useful for simple factories. To do this reimplement the {@link #create}
100 * A common strategy for creating more complex types of documents is to have the
101 * EditorKit implementation return a factory. Since the EditorKit ties all of
102 * the pieces necessary to maintain a type of document, the factory is typically
103 * an important part of that and should be produced by the EditorKit
107 * <strong>Warning:</strong> Serialized objects of this class will not be
108 * compatible with future Swing releases. The current serialization support is
109 * appropriate for short term storage or RMI between applications running the
110 * same version of Swing. As of 1.4, support for long term storage of all
111 * JavaBeans<sup><font size="-2">TM</font></sup> has been added to the
112 * <code>java.beans</code> package. Please see {@link jsjava.beans.XMLEncoder}.
114 * @author Timothy Prinzing
115 * @author Shannon Hickey (drag and drop)
117 public abstract class JSTextUI extends JSComponentUI {// implements {ViewFactory
119 @SuppressWarnings("unused")
120 protected void setFocusable() {
121 JQueryObject node = $(focusNode);
127 * node.focus(function() {me.notifyFocus(true)});
128 * node.blur(function() {me.notifyFocus(false)});
134 protected String getComponentText() {
135 return currentText = ((JTextComponent) c).getText();
138 protected void bindKeys(DOMNode domNode) {
140 JSEventHandler me = this;
141 if (!((JTextComponent) c).isEditable())
146 * f = function(event) { me.handleJSEvent(me.domNode, 401, event)
150 System.out.println(me);
152 $(domNode).bind("keydown keypress keyup", f);
154 // TODO Auto-generated method stub
159 * Initializes component properties, e.g. font, foreground, background, caret
160 * color, selection color, selected text color, disabled text color, and
161 * border color. The font, foreground, and background properties are only set
162 * if their current value is either null or a UIResource, other properties are
163 * set if the current value is null.
165 * @see #uninstallDefaults
168 protected void installDefaults() {
169 // String prefix = getPropertyPrefix();
170 // Font f = editor.getFont();
171 // if ((f == null) || (f instanceof UIResource)) {
172 // editor.setFont(UIManager.getFont(prefix + ".font"));
175 // Color bg = editor.getBackground();
176 // if ((bg == null) || (bg instanceof UIResource)) {
177 // editor.setBackground(UIManager.getColor(prefix + ".background"));
180 // Color fg = editor.getForeground();
181 // if ((fg == null) || (fg instanceof UIResource)) {
182 // editor.setForeground(UIManager.getColor(prefix + ".foreground"));
185 // Color color = editor.getCaretColor();
186 // if ((color == null) || (color instanceof UIResource)) {
187 // editor.setCaretColor(UIManager.getColor(prefix + ".caretForeground"));
190 // Color s = editor.getSelectionColor();
191 // if ((s == null) || (s instanceof UIResource)) {
192 // editor.setSelectionColor(UIManager.getColor(prefix +
193 // ".selectionBackground"));
196 // Color sfg = editor.getSelectedTextColor();
197 // if ((sfg == null) || (sfg instanceof UIResource)) {
198 // editor.setSelectedTextColor(UIManager.getColor(prefix +
199 // ".selectionForeground"));
202 // Color dfg = editor.getDisabledTextColor();
203 // if ((dfg == null) || (dfg instanceof UIResource)) {
204 // editor.setDisabledTextColor(UIManager.getColor(prefix +
205 // ".inactiveForeground"));
208 // Border b = editor.getBorder();
209 // if ((b == null) || (b instanceof UIResource)) {
210 // editor.setBorder(UIManager.getBorder(prefix + ".border"));
213 // Insets margin = editor.getMargin();
214 // if (margin == null || margin instanceof UIResource) {
215 // editor.setMargin(UIManager.getInsets(prefix + ".margin"));
221 private void installDefaults2() {
222 // editor.addMouseListener(dragListener);
223 // editor.addMouseMotionListener(dragListener);
225 // String prefix = getPropertyPrefix();
227 Caret caret = editor.getCaret();
228 if (caret == null || caret instanceof UIResource) {
229 editor.setCaret(new JSCaret());
232 // Highlighter highlighter = editor.getHighlighter();
233 // if (highlighter == null || highlighter instanceof UIResource) {
234 // editor.setHighlighter(createHighlighter());
237 // TransferHandler th = editor.getTransferHandler();
238 // if (th == null || th instanceof UIResource) {
239 // editor.setTransferHandler(getTransferHandler());
244 * called by JmolCore.js
248 public boolean handleJSEvent(Object target, int eventType, Object jQueryEvent) {
249 System.out.println("Handling for " + id + " " + eventType + " "
251 return updateHandler.handleJSEvent(this, eventType, jQueryEvent);
255 * Sets the component properties that haven't been explicitly overridden to
256 * null. A property is considered overridden if its current value is not a
259 * @see #installDefaults
262 protected void uninstallDefaults() {
263 // editor.removeMouseListener(dragListener);
264 // editor.removeMouseMotionListener(dragListener);
266 if (editor.getCaretColor() instanceof UIResource) {
267 editor.setCaretColor(null);
270 if (editor.getSelectionColor() instanceof UIResource) {
271 editor.setSelectionColor(null);
274 if (editor.getDisabledTextColor() instanceof UIResource) {
275 editor.setDisabledTextColor(null);
278 if (editor.getSelectedTextColor() instanceof UIResource) {
279 editor.setSelectedTextColor(null);
282 if (editor.getBorder() instanceof UIResource) {
283 editor.setBorder(null);
286 if (editor.getMargin() instanceof UIResource) {
287 editor.setMargin(null);
290 // if (editor.getCaret() instanceof UIResource) {
291 // editor.setCaret(null);
294 // if (editor.getHighlighter() instanceof UIResource) {
295 // editor.setHighlighter(null);
298 // if (editor.getTransferHandler() instanceof UIResource) {
299 // editor.setTransferHandler(null);
302 // if (editor.getCursor() instanceof UIResource) {
303 // editor.setCursor(null);
307 protected void installKeyboardActions() {
308 // backward compatibility support... keymaps for the UI
309 // are now installed in the more friendly input map.
310 // editor.setKeymap(createKeymap());
312 InputMap km = getInputMap();
314 SwingUtilities.replaceUIInputMap(editor, JComponent.WHEN_FOCUSED, km);
317 ActionMap map = getActionMap();
319 SwingUtilities.replaceUIActionMap(editor, map);
322 // updateFocusAcceleratorBinding(false);
326 * Get the InputMap to use for the UI.
328 InputMap getInputMap() {
329 InputMap map = new InputMapUIResource();
332 // (InputMap)DefaultLookup.get(editor, this,
333 // getPropertyPrefix() + ".focusInputMap");
334 // if (shared != null) {
335 // map.setParent(shared);
341 // * Invoked when the focus accelerator changes, this will update the
342 // * key bindings as necessary.
344 // void updateFocusAcceleratorBinding(boolean changed) {
345 // char accelerator = editor.getFocusAccelerator();
347 // if (changed || accelerator != '\0') {
348 // InputMap km = SwingUtilities.getUIInputMap
349 // (editor, JComponent.WHEN_IN_FOCUSED_WINDOW);
351 // if (km == null && accelerator != '\0') {
352 // km = new ComponentInputMapUIResource(editor);
353 // SwingUtilities.replaceUIInputMap(editor, JComponent.
354 // WHEN_IN_FOCUSED_WINDOW, km);
355 // ActionMap am = getActionMap();
356 // SwingUtilities.replaceUIActionMap(editor, am);
360 // if (accelerator != '\0') {
361 // km.put(KeyStroke.getKeyStroke(accelerator,
362 // ActionEvent.ALT_MASK),
371 // * Invoked when editable property is changed.
373 // * removing 'TAB' and 'SHIFT-TAB' from traversalKeysSet in case
374 // * editor is editable
375 // * adding 'TAB' and 'SHIFT-TAB' to traversalKeysSet in case
376 // * editor is non editable
379 // void updateFocusTraversalKeys() {
381 // * Fix for 4514331 Non-editable JTextArea and similar
382 // * should allow Tab to keyboard - accessibility
384 // EditorKit editorKit = getEditorKit(editor);
385 // if ( editorKit != null
386 // && editorKit instanceof DefaultEditorKit) {
387 // Set storedForwardTraversalKeys = editor.
388 // getFocusTraversalKeys(KeyboardFocusManager.
389 // FORWARD_TRAVERSAL_KEYS);
390 // Set storedBackwardTraversalKeys = editor.
391 // getFocusTraversalKeys(KeyboardFocusManager.
392 // BACKWARD_TRAVERSAL_KEYS);
393 // Set forwardTraversalKeys =
394 // new HashSet(storedForwardTraversalKeys);
395 // Set backwardTraversalKeys =
396 // new HashSet(storedBackwardTraversalKeys);
397 // if (editor.isEditable()) {
398 // forwardTraversalKeys.
399 // remove(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0));
400 // backwardTraversalKeys.
401 // remove(KeyStroke.getKeyStroke(KeyEvent.VK_TAB,
402 // InputEvent.SHIFT_MASK));
404 // forwardTraversalKeys.add(KeyStroke.
405 // getKeyStroke(KeyEvent.VK_TAB, 0));
406 // backwardTraversalKeys.
408 // getKeyStroke(KeyEvent.VK_TAB, InputEvent.SHIFT_MASK));
410 // LookAndFeel.installProperty(editor,
411 // "focusTraversalKeysForward",
412 // forwardTraversalKeys);
413 // LookAndFeel.installProperty(editor,
414 // "focusTraversalKeysBackward",
415 // backwardTraversalKeys);
421 // * As needed updates cursor for the target editor.
423 // private void updateCursor() {
424 // if ((! editor.isCursorSet())
425 // || editor.getCursor() instanceof UIResource) {
426 // Cursor cursor = (editor.isEditable()) ? textCursor : null;
427 // editor.setCursor(cursor);
432 // * Returns the <code>TransferHandler</code> that will be installed if
433 // * their isn't one installed on the <code>JTextComponent</code>.
435 // TransferHandler getTransferHandler() {
436 // return defaultTransferHandler;
440 * Fetch an action map to use.
442 ActionMap getActionMap() {
443 String mapName = classID + ".actionMap";
444 ActionMap map = (ActionMap) UIManager.get(mapName);
446 map = createActionMap();
448 UIManager.getLookAndFeelDefaults().put(mapName, map);
453 // ActionMap componentMap = new ActionMapUIResource();
454 // componentMap.put("requestFocus", new FocusAction());
456 // * fix for bug 4515750
457 // * JTextField & non-editable JTextArea bind return key - default btn not
460 // * Wrap the return action so that it is only enabled when the
461 // * component is editable. This allows the default button to be
462 // * processed when the text component has focus and isn't editable.
465 // if (getEditorKit(editor) instanceof DefaultEditorKit) {
466 // if (map != null) {
467 // Object obj = map.get(DefaultEditorKit.insertBreakAction);
469 // && obj instanceof DefaultEditorKit.InsertBreakAction) {
470 // Action action = new TextActionWrapper((TextAction)obj);
471 // componentMap.put(action.getValue(Action.NAME),action);
475 // if (map != null) {
476 // componentMap.setParent(map);
478 // return componentMap;
482 * Create a default action map. This is basically the set of actions found
483 * exported by the component.
488 ActionMap createActionMap() {
489 ActionMap map = new ActionMapUIResource();
490 Action[] actions = editor.getActions();//defaultKit.getActions(); // SwingJS was editor.getEditorKit().getActions()
491 // System.out.println("building map for UI: " + getPropertyPrefix());
492 int n = actions.length;
493 for (int i = 0; i < n; i++) {
494 Action a = actions[i];
495 map.put(a.getValue(Action.NAME), a);
496 // System.out.println(" " + a.getValue(Action.NAME));
498 // map.put(TransferHandler.getCutAction().getValue(Action.NAME),
499 // TransferHandler.getCutAction());
500 // map.put(TransferHandler.getCopyAction().getValue(Action.NAME),
501 // TransferHandler.getCopyAction());
502 // map.put(TransferHandler.getPasteAction().getValue(Action.NAME),
503 // TransferHandler.getPasteAction());
507 protected void uninstallKeyboardActions() {
508 editor.setKeymap(null);
509 SwingUtilities.replaceUIInputMap(editor, JComponent.WHEN_IN_FOCUSED_WINDOW,
511 SwingUtilities.replaceUIActionMap(editor, null);
515 // * Paints a background for the view. This will only be
516 // * called if isOpaque() on the associated component is
517 // * true. The default is to paint the background color
518 // * of the component.
520 // * @param g the graphics context
522 // protected void paintBackground(Graphics g) {
523 // g.setColor(editor.getBackground());
524 // g.fillRect(0, 0, editor.getWidth(), editor.getHeight());
528 * Fetches the text component associated with this UI implementation. This
529 * will be null until the ui has been installed.
531 * @return the editor component
533 protected final JTextComponent getComponent() {
538 // * Flags model changes.
539 // * This is called whenever the model has changed.
540 // * It is implemented to rebuild the view hierarchy
541 // * to represent the default root element of the
542 // * associated model.
544 // protected void modelChanged() {
545 // // create a view hierarchy
546 // ViewFactory f = rootView.getViewFactory();
547 // Document doc = editor.getDocument();
548 // Element elem = doc.getDefaultRootElement();
549 // setView(f.create(elem));
553 // * Sets the current root of the view hierarchy and calls invalidate().
554 // * If there were any child components, they will be removed (i.e.
555 // * there are assumed to have come from components embedded in views).
557 // * @param v the root view
559 // protected final void setView(View v) {
560 // rootView.setView(v);
562 // editor.revalidate();
567 // * Paints the interface safely with a guarantee that
568 // * the model won't change from the view of this thread.
569 // * This does the following things, rendering from
573 // * If the component is marked as opaque, the background
574 // * is painted in the current background color of the
577 // * The highlights (if any) are painted.
579 // * The view hierarchy is painted.
581 // * The caret is painted.
584 // * @param g the graphics context
586 // protected void paintSafely(Graphics g) {
588 // Highlighter highlighter = editor.getHighlighter();
589 // Caret caret = editor.getCaret();
591 // // paint the background
592 // if (editor.isOpaque()) {
593 // paintBackground(g);
596 // // paint the highlights
597 // if (highlighter != null) {
598 // highlighter.paint(g);
601 // // paint the view hierarchy
602 // Rectangle alloc = getVisibleEditorRect();
603 // if (alloc != null) {
604 // rootView.paint(g, alloc);
607 // // paint the caret
608 // if (caret != null) {
612 // if (dropCaret != null) {
613 // dropCaret.paint(g);
617 // --- ComponentUI methods --------------------------------------------
619 TextListener updateHandler;
622 * Installs the UI for a component. This does the following things.
625 * Set the associated component to opaque (can be changed easily by a subclass
626 * or on JTextComponent directly), which is the most common case. This will
627 * cause the component's background color to be painted.
629 * Install the default caret and highlighter into the associated component.
631 * Attach to the editor and model. If there is no model, a default one is
634 * create the view factory and the view hierarchy used to represent the model.
638 * the editor component
639 * @see ComponentUI#installUI
641 protected void installJSUI() {
642 editor = (JTextComponent) c;
643 updateHandler = new TextListener(this, editor);
649 // // This is a workaround as these should not override what synth has
651 // if (!(this instanceof sun.swing.plaf.synth.SynthUI)){
652 // // common case is background painted... this can
653 // // easily be changed by subclasses or from outside
654 // // of the component.
655 // LookAndFeel.installProperty(editor, "opaque", Boolean.TRUE);
656 // LookAndFeel.installProperty(editor, "autoscrolls", Boolean.TRUE);
659 // attach to the model and editor
660 // Document doc = editor.getDocument();
661 // if (doc == null) {
662 // // no model, create a default one. This will
663 // // fire a notification to the updateHandler
664 // // which takes care of the rest.
665 // editor.setDocument(getEditorKit(editor).createDefaultDocument());
667 // // doc.addDocumentListener(updateHandler);
668 // // modelChanged();
672 installListeners(editor);
673 installKeyboardActions();
675 // LayoutManager oldLayout = editor.getLayout();
676 // if ((oldLayout == null) || (oldLayout instanceof UIResource)) {
677 // // by default, use default LayoutManger implementation that
678 // // will position the components associated with a View object.
679 // editor.setLayout(updateHandler);
682 // updateBackground(editor);
686 * Deinstalls the UI for a component. This removes the listeners, uninstalls
687 * the highlighter, removes views, and nulls out the keymap.
690 * the editor component
691 * @see ComponentUI#uninstallUI
693 public void uninstallJSUI() {
694 // detach from the model
695 // editor.removePropertyChangeListener(updateHandler);
696 // editor.getDocument().removeDocumentListener(updateHandler);
701 // rootView.setView(null);
703 LayoutManager lm = c.getLayout();
704 if (lm instanceof UIResource) {
709 uninstallKeyboardActions();
710 uninstallListeners(editor);
713 updateHandler = null;
716 protected void installListeners(JTextComponent b) {
717 TextListener listener = updateHandler;
718 b.addMouseListener(listener);
719 b.addMouseMotionListener(listener);
720 b.addFocusListener(listener);
721 b.addPropertyChangeListener(listener);
722 // SwingJS there won't be a document yet; this is in constructor
723 // b.getDocument().addDocumentListener(listener);
726 protected void uninstallListeners(JTextComponent b) {
727 TextListener listener = updateHandler;
728 b.removeMouseListener(listener);
729 b.removeMouseMotionListener(listener);
730 b.removeFocusListener(listener);
731 b.removePropertyChangeListener(listener);
732 b.getDocument().removeDocumentListener(listener);
736 // * Superclass paints background in an uncontrollable way
737 // * (i.e. one might want an image tiled into the background).
738 // * To prevent this from happening twice, this method is
739 // * reimplemented to simply paint.
741 // * <em>NOTE:</em> Superclass is also not thread-safe in
742 // * it's rendering of the background, although that's not
743 // * an issue with the default rendering.
745 // public void update(Graphics g, JComponent c) {
750 // * Paints the interface. This is routed to the
751 // * paintSafely method under the guarantee that
752 // * the model won't change from the view of this thread
753 // * while it's rendering (if the associated model is
754 // * derived from AbstractDocument). This enables the
755 // * model to potentially be updated asynchronously.
757 // * @param g the graphics context
758 // * @param c the editor component
760 // public final void paint(Graphics g, JComponent c) {
761 // if ((rootView.getViewCount() > 0) && (rootView.getView(0) != null)) {
762 // Document doc = editor.getDocument();
763 // if (doc instanceof AbstractDocument) {
764 // ((AbstractDocument)doc).readLock();
769 // if (doc instanceof AbstractDocument) {
770 // ((AbstractDocument)doc).readUnlock();
777 // * Gets the preferred size for the editor component. If the component
778 // * has been given a size prior to receiving this request, it will
779 // * set the size of the view hierarchy to reflect the size of the component
780 // * before requesting the preferred size of the view hierarchy. This
781 // * allows formatted views to format to the current component size before
782 // * answering the request. Other views don't care about currently formatted
783 // * size and give the same answer either way.
785 // * @param c the editor component
786 // * @return the size
788 // public Dimension getPreferredSize(JComponent c) {
789 // Dimension d = c.getSize();
790 // // Document doc = editor.getDocument();
791 // // Insets i = c.getInsets();
793 // // if (doc instanceof AbstractDocument) {
794 // // ((AbstractDocument)doc).readLock();
797 // // if ((d.width > (i.left + i.right)) && (d.height > (i.top + i.bottom))) {
798 // // rootView.setSize(d.width - i.left - i.right, d.height - i.top -
801 // // else if (d.width == 0 && d.height == 0) {
802 // // // Probably haven't been layed out yet, force some sort of
803 // // // initial sizing.
804 // // rootView.setSize(Integer.MAX_VALUE, Integer.MAX_VALUE);
806 // // d.width = (int) Math.min((long) rootView.getPreferredSpan(View.X_AXIS) +
807 // // (long) i.left + (long) i.right, Integer.MAX_VALUE);
808 // // d.height = (int) Math.min((long) rootView.getPreferredSpan(View.Y_AXIS)
810 // // (long) i.top + (long) i.bottom, Integer.MAX_VALUE);
812 // // if (doc instanceof AbstractDocument) {
813 // // ((AbstractDocument)doc).readUnlock();
820 * Gets the minimum size for the editor component.
823 * the editor component
826 public Dimension getMinimumSize(JComponent c) {
827 Dimension d = getPreferredSize();// new Dimension();
828 // Document doc = editor.getDocument();
829 Insets i = c.getInsets();
830 // if (doc instanceof AbstractDocument) {
831 // ((AbstractDocument)doc).readLock();
835 d.width += i.left + i.right;
836 d.height += i.top + i.bottom;
838 // d.width = (int) rootView.getMinimumSpan(View.X_AXIS) + i.left + i.right;
839 // d.height = (int) rootView.getMinimumSpan(View.Y_AXIS) + i.top + i.bottom;
841 // if (doc instanceof AbstractDocument) {
842 // ((AbstractDocument)doc).readUnlock();
849 * Gets the maximum size for the editor component.
852 * the editor component
855 public Dimension getMaximumSize(JComponent c) {
857 return getMinimumSize(c);
859 // Document doc = editor.getDocument();
860 // Insets i = c.getInsets();
861 // Dimension d = new Dimension();
862 // if (doc instanceof AbstractDocument) {
863 // ((AbstractDocument)doc).readLock();
866 // d.width = (int) Math.min((long) rootView.getMaximumSpan(View.X_AXIS) +
867 // (long) i.left + (long) i.right, Integer.MAX_VALUE);
868 // d.height = (int) Math.min((long) rootView.getMaximumSpan(View.Y_AXIS) +
869 // (long) i.top + (long) i.bottom, Integer.MAX_VALUE);
871 // if (doc instanceof AbstractDocument) {
872 // ((AbstractDocument)doc).readUnlock();
878 // ---- TextUI methods -------------------------------------------
882 // * Gets the allocation to give the root View. Due
883 // * to an unfortunate set of historical events this
884 // * method is inappropriately named. The Rectangle
885 // * returned has nothing to do with visibility.
886 // * The component must have a non-zero positive size for
887 // * this translation to be computed.
889 // * @return the bounding box for the root view
891 // protected Rectangle getVisibleEditorRect() {
892 // Rectangle alloc = editor.getBounds();
893 // if ((alloc.width > 0) && (alloc.height > 0)) {
894 // alloc.x = alloc.y = 0;
895 // Insets insets = editor.getInsets();
896 // alloc.x += insets.left;
897 // alloc.y += insets.top;
898 // alloc.width -= insets.left + insets.right;
899 // alloc.height -= insets.top + insets.bottom;
906 // * Converts the given location in the model to a place in
907 // * the view coordinate system.
908 // * The component must have a non-zero positive size for
909 // * this translation to be computed.
911 // * @param tc the text component for which this UI is installed
912 // * @param pos the local location in the model to translate >= 0
913 // * @return the coordinates as a rectangle, null if the model is not painted
914 // * @exception BadLocationException if the given position does not
915 // * represent a valid location in the associated document
916 // * @see TextUI#modelToView
918 // public Rectangle modelToView(JTextComponent tc, int pos) throws
919 // BadLocationException {
920 // return modelToView(tc, pos, Position.Bias.Forward);
924 // * Converts the given location in the model to a place in
925 // * the view coordinate system.
926 // * The component must have a non-zero positive size for
927 // * this translation to be computed.
929 // * @param tc the text component for which this UI is installed
930 // * @param pos the local location in the model to translate >= 0
931 // * @return the coordinates as a rectangle, null if the model is not painted
932 // * @exception BadLocationException if the given position does not
933 // * represent a valid location in the associated document
934 // * @see TextUI#modelToView
936 // public Rectangle modelToView(JTextComponent tc, int pos, Position.Bias
937 // bias) throws BadLocationException {
938 // Document doc = editor.getDocument();
939 // if (doc instanceof AbstractDocument) {
940 // ((AbstractDocument)doc).readLock();
943 // Rectangle alloc = getVisibleEditorRect();
944 // if (alloc != null) {
945 // rootView.setSize(alloc.width, alloc.height);
946 // Shape s = rootView.modelToView(pos, alloc, bias);
948 // return s.getBounds();
952 // if (doc instanceof AbstractDocument) {
953 // ((AbstractDocument)doc).readUnlock();
960 // * Converts the given place in the view coordinate system
961 // * to the nearest representative location in the model.
962 // * The component must have a non-zero positive size for
963 // * this translation to be computed.
965 // * @param tc the text component for which this UI is installed
966 // * @param pt the location in the view to translate. This
967 // * should be in the same coordinate system as the mouse events.
968 // * @return the offset from the start of the document >= 0,
969 // * -1 if not painted
970 // * @see TextUI#viewToModel
972 // public int viewToModel(JTextComponent tc, Point pt) {
973 // return viewToModel(tc, pt, discardBias);
977 // * Converts the given place in the view coordinate system
978 // * to the nearest representative location in the model.
979 // * The component must have a non-zero positive size for
980 // * this translation to be computed.
982 // * @param tc the text component for which this UI is installed
983 // * @param pt the location in the view to translate. This
984 // * should be in the same coordinate system as the mouse events.
985 // * @return the offset from the start of the document >= 0,
986 // * -1 if the component doesn't yet have a positive size.
987 // * @see TextUI#viewToModel
989 // public int viewToModel(JTextComponent tc, Point pt,
990 // Position.Bias[] biasReturn) {
992 // Document doc = editor.getDocument();
993 // if (doc instanceof AbstractDocument) {
994 // ((AbstractDocument)doc).readLock();
997 // Rectangle alloc = getVisibleEditorRect();
998 // if (alloc != null) {
999 // rootView.setSize(alloc.width, alloc.height);
1000 // offs = rootView.viewToModel(pt.x, pt.y, alloc, biasReturn);
1003 // if (doc instanceof AbstractDocument) {
1004 // ((AbstractDocument)doc).readUnlock();
1013 // public int getNextVisualPositionFrom(JTextComponent t, int pos,
1014 // Position.Bias b, int direction, Position.Bias[] biasRet)
1015 // throws BadLocationException{
1016 // Document doc = editor.getDocument();
1017 // if (doc instanceof AbstractDocument) {
1018 // ((AbstractDocument)doc).readLock();
1022 // Rectangle alloc = getVisibleEditorRect();
1023 // if (alloc != null) {
1024 // rootView.setSize(alloc.width, alloc.height);
1026 // return rootView.getNextVisualPositionFrom(pos, b, alloc, direction,
1030 // if (doc instanceof AbstractDocument) {
1031 // ((AbstractDocument)doc).readUnlock();
1038 // * Causes the portion of the view responsible for the
1039 // * given part of the model to be repainted. Does nothing if
1040 // * the view is not currently painted.
1042 // * @param tc the text component for which this UI is installed
1043 // * @param p0 the beginning of the range >= 0
1044 // * @param p1 the end of the range >= p0
1045 // * @see TextUI#damageRange
1047 // public void damageRange(JTextComponent tc, int p0, int p1) {
1048 // damageRange(tc, p0, p1, Position.Bias.Forward, Position.Bias.Backward);
1052 // * Causes the portion of the view responsible for the
1053 // * given part of the model to be repainted.
1055 // * @param p0 the beginning of the range >= 0
1056 // * @param p1 the end of the range >= p0
1058 // public void damageRange(JTextComponent t, int p0, int p1,
1059 // Position.Bias p0Bias, Position.Bias p1Bias) {
1061 // Rectangle alloc = getVisibleEditorRect();
1062 // if (alloc != null) {
1063 // Document doc = t.getDocument();
1064 // if (doc instanceof AbstractDocument) {
1065 // ((AbstractDocument)doc).readLock();
1068 // rootView.setSize(alloc.width, alloc.height);
1069 // Shape toDamage = rootView.modelToView(p0, p0Bias,
1070 // p1, p1Bias, alloc);
1071 // Rectangle rect = (toDamage instanceof Rectangle) ?
1072 // (Rectangle)toDamage : toDamage.getBounds();
1073 // editor.repaint(rect.x, rect.y, rect.width, rect.height);
1074 // } catch (BadLocationException e) {
1076 // if (doc instanceof AbstractDocument) {
1077 // ((AbstractDocument)doc).readUnlock();
1085 * Fetches the EditorKit for the UI.
1088 * the text component for which this UI is installed
1089 * @return the editor capabilities
1090 * @see TextUI#getEditorKit
1092 public EditorKit getEditorKit(JTextComponent tc) {
1097 // * Fetches a View with the allocation of the associated
1098 // * text component (i.e. the root of the hierarchy) that
1099 // * can be traversed to determine how the model is being
1100 // * represented spatially.
1102 // * <font color=red><b>NOTE:</b>The View hierarchy can
1103 // * be traversed from the root view, and other things
1104 // * can be done as well. Things done in this way cannot
1105 // * be protected like simple method calls through the TextUI.
1106 // * Therefore, proper operation in the presence of concurrency
1107 // * must be arranged by any logic that calls this method!
1110 // * @param tc the text component for which this UI is installed
1111 // * @return the view
1112 // * @see TextUI#getRootView
1114 // public View getRootView(JTextComponent tc) {
1119 // * Returns the string to be used as the tooltip at the passed in location.
1120 // * This forwards the method onto the root View.
1122 // * @see jsjavax.swing.text.JTextComponent#getToolTipText
1123 // * @see jsjavax.swing.text.View#getToolTipText
1126 // public String getToolTipText(JTextComponent t, Point pt) {
1130 // Document doc = editor.getDocument();
1131 // String tt = null;
1132 // Rectangle alloc = getVisibleEditorRect();
1134 // if (alloc != null) {
1135 // if (doc instanceof AbstractDocument) {
1136 // ((AbstractDocument)doc).readLock();
1139 // tt = rootView.getToolTipText(pt.x, pt.y, alloc);
1141 // if (doc instanceof AbstractDocument) {
1142 // ((AbstractDocument)doc).readUnlock();
1149 // --- ViewFactory methods ------------------------------
1152 // * Creates a view for an element.
1153 // * If a subclass wishes to directly implement the factory
1154 // * producing the view(s), it should reimplement this
1155 // * method. By default it simply returns null indicating
1156 // * it is unable to represent the element.
1158 // * @param elem the element
1159 // * @return the view
1161 // public View create(Element elem) {
1166 // * Creates a view for an element.
1167 // * If a subclass wishes to directly implement the factory
1168 // * producing the view(s), it should reimplement this
1169 // * method. By default it simply returns null indicating
1170 // * it is unable to represent the part of the element.
1172 // * @param elem the element
1173 // * @param p0 the starting offset >= 0
1174 // * @param p1 the ending offset >= p0
1175 // * @return the view
1177 // public View create(Element elem, int p0, int p1) {
1181 // public static class BasicCaret extends DefaultCaret implements UIResource
1184 // public static class BasicHighlighter extends DefaultHighlighter implements
1187 // static class BasicCursor extends Cursor implements UIResource {
1188 // BasicCursor(int type) {
1192 // BasicCursor(String name) {
1197 // private static BasicCursor textCursor = new
1198 // BasicCursor(Cursor.TEXT_CURSOR);
1199 // ----- member variables ---------------------------------------
1201 private static final EditorKit defaultKit = new DefaultEditorKit();
1202 transient JTextComponent editor;
1203 protected boolean editable = true;
1205 // transient boolean painted;
1206 // transient RootView rootView = new RootView();
1207 // transient UpdateHandler updateHandler = new UpdateHandler();
1208 // private static final TransferHandler defaultTransferHandler = new
1209 // TextTransferHandler();
1210 // private final DragListener dragListener = getDragListener();
1211 // private static final Position.Bias[] discardBias = new Position.Bias[1];
1212 // private DefaultCaret dropCaret;
1215 // * Root view that acts as a gateway between the component
1216 // * and the View hierarchy.
1218 // class RootView extends View {
1224 // void setView(View v) {
1225 // View oldView = view;
1227 // if (oldView != null) {
1228 // // get rid of back reference so that the old
1229 // // hierarchy can be garbage collected.
1230 // oldView.setParent(null);
1233 // v.setParent(this);
1239 // * Fetches the attributes to use when rendering. At the root
1240 // * level there are no attributes. If an attribute is resolved
1241 // * up the view hierarchy this is the end of the line.
1243 // public AttributeSet getAttributes() {
1248 // * Determines the preferred span for this view along an axis.
1250 // * @param axis may be either X_AXIS or Y_AXIS
1251 // * @return the span the view would like to be rendered into.
1252 // * Typically the view is told to render into the span
1253 // * that is returned, although there is no guarantee.
1254 // * The parent may choose to resize or break the view.
1256 // public float getPreferredSpan(int axis) {
1257 // if (view != null) {
1258 // return view.getPreferredSpan(axis);
1264 // * Determines the minimum span for this view along an axis.
1266 // * @param axis may be either X_AXIS or Y_AXIS
1267 // * @return the span the view would like to be rendered into.
1268 // * Typically the view is told to render into the span
1269 // * that is returned, although there is no guarantee.
1270 // * The parent may choose to resize or break the view.
1272 // public float getMinimumSpan(int axis) {
1273 // if (view != null) {
1274 // return view.getMinimumSpan(axis);
1280 // * Determines the maximum span for this view along an axis.
1282 // * @param axis may be either X_AXIS or Y_AXIS
1283 // * @return the span the view would like to be rendered into.
1284 // * Typically the view is told to render into the span
1285 // * that is returned, although there is no guarantee.
1286 // * The parent may choose to resize or break the view.
1288 // public float getMaximumSpan(int axis) {
1289 // return Integer.MAX_VALUE;
1293 // * Specifies that a preference has changed.
1294 // * Child views can call this on the parent to indicate that
1295 // * the preference has changed. The root view routes this to
1296 // * invalidate on the hosting component.
1298 // * This can be called on a different thread from the
1299 // * event dispatching thread and is basically unsafe to
1300 // * propagate into the component. To make this safe,
1301 // * the operation is transferred over to the event dispatching
1302 // * thread for completion. It is a design goal that all view
1303 // * methods be safe to call without concern for concurrency,
1304 // * and this behavior helps make that true.
1306 // * @param child the child view
1307 // * @param width true if the width preference has changed
1308 // * @param height true if the height preference has changed
1310 // public void preferenceChanged(View child, boolean width, boolean height) {
1311 // editor.revalidate();
1315 // * Determines the desired alignment for this view along an axis.
1317 // * @param axis may be either X_AXIS or Y_AXIS
1318 // * @return the desired alignment, where 0.0 indicates the origin
1319 // * and 1.0 the full span away from the origin
1321 // public float getAlignment(int axis) {
1322 // if (view != null) {
1323 // return view.getAlignment(axis);
1329 // * Renders the view.
1331 // * @param g the graphics context
1332 // * @param allocation the region to render into
1334 // public void paint(Graphics g, Shape allocation) {
1335 // if (view != null) {
1336 // Rectangle alloc = (allocation instanceof Rectangle) ?
1337 // (Rectangle)allocation : allocation.getBounds();
1338 // setSize(alloc.width, alloc.height);
1339 // view.paint(g, allocation);
1344 // * Sets the view parent.
1346 // * @param parent the parent view
1348 // public void setParent(View parent) {
1349 // throw new Error("Can't set parent on root view");
1353 // * Returns the number of views in this view. Since
1354 // * this view simply wraps the root of the view hierarchy
1355 // * it has exactly one child.
1357 // * @return the number of views
1360 // public int getViewCount() {
1365 // * Gets the n-th view in this container.
1367 // * @param n the number of the view to get
1368 // * @return the view
1370 // public View getView(int n) {
1375 // * Returns the child view index representing the given position in
1376 // * the model. This is implemented to return the index of the only
1379 // * @param pos the position >= 0
1380 // * @return index of the view representing the given position, or
1381 // * -1 if no view represents that position
1384 // public int getViewIndex(int pos, Position.Bias b) {
1389 // * Fetches the allocation for the given child view.
1390 // * This enables finding out where various views
1391 // * are located, without assuming the views store
1392 // * their location. This returns the given allocation
1393 // * since this view simply acts as a gateway between
1394 // * the view hierarchy and the associated component.
1396 // * @param index the index of the child
1397 // * @param a the allocation to this view.
1398 // * @return the allocation to the child
1400 // public Shape getChildAllocation(int index, Shape a) {
1405 // * Provides a mapping from the document model coordinate space
1406 // * to the coordinate space of the view mapped to it.
1408 // * @param pos the position to convert
1409 // * @param a the allocated region to render into
1410 // * @return the bounding box of the given position
1412 // public Shape modelToView(int pos, Shape a, Position.Bias b) throws
1413 // BadLocationException {
1414 // if (view != null) {
1415 // return view.modelToView(pos, a, b);
1421 // * Provides a mapping from the document model coordinate space
1422 // * to the coordinate space of the view mapped to it.
1424 // * @param p0 the position to convert >= 0
1425 // * @param b0 the bias toward the previous character or the
1426 // * next character represented by p0, in case the
1427 // * position is a boundary of two views.
1428 // * @param p1 the position to convert >= 0
1429 // * @param b1 the bias toward the previous character or the
1430 // * next character represented by p1, in case the
1431 // * position is a boundary of two views.
1432 // * @param a the allocated region to render into
1433 // * @return the bounding box of the given position is returned
1434 // * @exception BadLocationException if the given position does
1435 // * not represent a valid location in the associated document
1436 // * @exception IllegalArgumentException for an invalid bias argument
1437 // * @see View#viewToModel
1439 // public Shape modelToView(int p0, Position.Bias b0, int p1, Position.Bias
1440 // b1, Shape a) throws BadLocationException {
1441 // if (view != null) {
1442 // return view.modelToView(p0, b0, p1, b1, a);
1448 // * Provides a mapping from the view coordinate space to the logical
1449 // * coordinate space of the model.
1451 // * @param x x coordinate of the view location to convert
1452 // * @param y y coordinate of the view location to convert
1453 // * @param a the allocated region to render into
1454 // * @return the location within the model that best represents the
1455 // * given point in the view
1457 // public int viewToModel(float x, float y, Shape a, Position.Bias[] bias) {
1458 // if (view != null) {
1459 // int retValue = view.viewToModel(x, y, a, bias);
1466 // * Provides a way to determine the next visually represented model
1467 // * location that one might place a caret. Some views may not be visible,
1468 // * they might not be in the same order found in the model, or they just
1469 // * might not allow access to some of the locations in the model.
1471 // * @param pos the position to convert >= 0
1472 // * @param a the allocated region to render into
1473 // * @param direction the direction from the current position that can
1474 // * be thought of as the arrow keys typically found on a keyboard.
1475 // * This may be SwingConstants.WEST, SwingConstants.EAST,
1476 // * SwingConstants.NORTH, or SwingConstants.SOUTH.
1477 // * @return the location within the model that best represents the next
1478 // * location visual position.
1479 // * @exception BadLocationException
1480 // * @exception IllegalArgumentException for an invalid direction
1482 // public int getNextVisualPositionFrom(int pos, Position.Bias b, Shape a,
1484 // Position.Bias[] biasRet)
1485 // throws BadLocationException {
1486 // if( view != null ) {
1487 // int nextPos = view.getNextVisualPositionFrom(pos, b, a,
1488 // direction, biasRet);
1489 // if(nextPos != -1) {
1500 // * Gives notification that something was inserted into the document
1501 // * in a location that this view is responsible for.
1503 // * @param e the change information from the associated document
1504 // * @param a the current allocation of the view
1505 // * @param f the factory to use to rebuild if the view has children
1507 // public void insertUpdate(DocumentEvent e, Shape a, ViewFactory f) {
1508 // if (view != null) {
1509 // view.insertUpdate(e, a, f);
1514 // * Gives notification that something was removed from the document
1515 // * in a location that this view is responsible for.
1517 // * @param e the change information from the associated document
1518 // * @param a the current allocation of the view
1519 // * @param f the factory to use to rebuild if the view has children
1521 // public void removeUpdate(DocumentEvent e, Shape a, ViewFactory f) {
1522 // if (view != null) {
1523 // view.removeUpdate(e, a, f);
1528 // * Gives notification from the document that attributes were changed
1529 // * in a location that this view is responsible for.
1531 // * @param e the change information from the associated document
1532 // * @param a the current allocation of the view
1533 // * @param f the factory to use to rebuild if the view has children
1535 // public void changedUpdate(DocumentEvent e, Shape a, ViewFactory f) {
1536 // if (view != null) {
1537 // view.changedUpdate(e, a, f);
1542 // * Returns the document model underlying the view.
1544 // * @return the model
1546 // public Document getDocument() {
1547 // return editor.getDocument();
1551 // * Returns the starting offset into the model for this view.
1553 // * @return the starting offset
1555 // public int getStartOffset() {
1556 // if (view != null) {
1557 // return view.getStartOffset();
1559 // return getElement().getStartOffset();
1563 // * Returns the ending offset into the model for this view.
1565 // * @return the ending offset
1567 // public int getEndOffset() {
1568 // if (view != null) {
1569 // return view.getEndOffset();
1571 // return getElement().getEndOffset();
1575 // * Gets the element that this view is mapped to.
1577 // * @return the view
1579 // public Element getElement() {
1580 // if (view != null) {
1581 // return view.getElement();
1583 // return editor.getDocument().getDefaultRootElement();
1587 // * Breaks this view on the given axis at the given length.
1589 // * @param axis may be either X_AXIS or Y_AXIS
1590 // * @param len specifies where a break is desired in the span
1591 // * @param the current allocation of the view
1592 // * @return the fragment of the view that represents the given span
1593 // * if the view can be broken, otherwise null
1595 // public View breakView(int axis, float len, Shape a) {
1596 // throw new Error("Can't break root view");
1600 // * Determines the resizability of the view along the
1601 // * given axis. A value of 0 or less is not resizable.
1603 // * @param axis may be either X_AXIS or Y_AXIS
1604 // * @return the weight
1606 // public int getResizeWeight(int axis) {
1607 // if (view != null) {
1608 // return view.getResizeWeight(axis);
1614 // * Sets the view size.
1616 // * @param width the width
1617 // * @param height the height
1619 // public void setSize(float width, float height) {
1620 // if (view != null) {
1621 // view.setSize(width, height);
1626 // * Fetches the container hosting the view. This is useful for
1627 // * things like scheduling a repaint, finding out the host
1628 // * components font, etc. The default implementation
1629 // * of this is to forward the query to the parent view.
1631 // * @return the container
1633 // public Container getContainer() {
1638 // * Fetches the factory to be used for building the
1639 // * various view fragments that make up the view that
1640 // * represents the model. This is what determines
1641 // * how the model will be represented. This is implemented
1642 // * to fetch the factory provided by the associated
1643 // * EditorKit unless that is null, in which case this
1644 // * simply returns the BasicTextUI itself which allows
1645 // * subclasses to implement a simple factory directly without
1646 // * creating extra objects.
1648 // * @return the factory
1650 // public ViewFactory getViewFactory() {
1651 // EditorKit kit = getEditorKit(editor);
1652 // ViewFactory f = kit.getViewFactory();
1656 // return BasicTextUI.this;
1659 // private View view;
1664 // * Handles updates from various places. If the model is changed,
1665 // * this class unregisters as a listener to the old model and
1666 // * registers with the new model. If the document model changes,
1667 // * the change is forwarded to the root view. If the focus
1668 // * accelerator changes, a new keystroke is registered to request
1671 // class UpdateHandler implements PropertyChangeListener, DocumentListener,
1672 // LayoutManager2, UIResource {
1674 // // --- PropertyChangeListener methods -----------------------
1677 // * This method gets called when a bound property is changed.
1678 // * We are looking for document changes on the editor.
1680 // public final void propertyChange(PropertyChangeEvent evt) {
1681 // Object oldValue = evt.getOldValue();
1682 // Object newValue = evt.getNewValue();
1683 // String propertyName = evt.getPropertyName();
1684 // if ((oldValue instanceof Document) || (newValue instanceof Document)) {
1685 // if (oldValue != null) {
1686 // ((Document)oldValue).removeDocumentListener(this);
1687 // i18nView = false;
1689 // if (newValue != null) {
1690 // ((Document)newValue).addDocumentListener(this);
1691 // if ("document" == propertyName) {
1693 // BasicTextUI.this.propertyChange(evt);
1700 // if ("focusAccelerator" == propertyName) {
1701 // updateFocusAcceleratorBinding(true);
1702 // } else if ("componentOrientation" == propertyName) {
1703 // // Changes in ComponentOrientation require the views to be
1706 // } else if ("font" == propertyName) {
1708 // } else if ("dropLocation" == propertyName) {
1709 // dropIndexChanged();
1710 // } else if ("editable" == propertyName) {
1714 // BasicTextUI.this.propertyChange(evt);
1717 // private void dropIndexChanged() {
1718 // if (editor.getDropMode() == DropMode.USE_SELECTION) {
1722 // JTextComponent.DropLocation dropLocation = editor.getDropLocation();
1724 // if (dropLocation == null) {
1725 // if (dropCaret != null) {
1726 // dropCaret.deinstall(editor);
1727 // editor.repaint(dropCaret);
1728 // dropCaret = null;
1731 // if (dropCaret == null) {
1732 // dropCaret = new BasicCaret();
1733 // dropCaret.install(editor);
1734 // dropCaret.setVisible(true);
1737 // dropCaret.setDot(dropLocation.getIndex(),
1738 // dropLocation.getBias());
1742 // // --- DocumentListener methods -----------------------
1745 // * The insert notification. Gets sent to the root of the view structure
1746 // * that represents the portion of the model being represented by the
1747 // * editor. The factory is added as an argument to the update so that
1748 // * the views can update themselves in a dynamic (not hardcoded) way.
1750 // * @param e The change notification from the currently associated
1752 // * @see DocumentListener#insertUpdate
1754 // public final void insertUpdate(DocumentEvent e) {
1755 // Document doc = e.getDocument();
1756 // Object o = doc.getProperty("i18n");
1757 // if (o instanceof Boolean) {
1758 // Boolean i18nFlag = (Boolean) o;
1759 // if (i18nFlag.booleanValue() != i18nView) {
1760 // // i18n flag changed, rebuild the view
1761 // i18nView = i18nFlag.booleanValue();
1767 // // normal insert update
1768 // Rectangle alloc = (painted) ? getVisibleEditorRect() : null;
1769 // rootView.insertUpdate(e, alloc, rootView.getViewFactory());
1773 // * The remove notification. Gets sent to the root of the view structure
1774 // * that represents the portion of the model being represented by the
1775 // * editor. The factory is added as an argument to the update so that
1776 // * the views can update themselves in a dynamic (not hardcoded) way.
1778 // * @param e The change notification from the currently associated
1780 // * @see DocumentListener#removeUpdate
1782 // public final void removeUpdate(DocumentEvent e) {
1783 // Rectangle alloc = (painted) ? getVisibleEditorRect() : null;
1784 // rootView.removeUpdate(e, alloc, rootView.getViewFactory());
1788 // * The change notification. Gets sent to the root of the view structure
1789 // * that represents the portion of the model being represented by the
1790 // * editor. The factory is added as an argument to the update so that
1791 // * the views can update themselves in a dynamic (not hardcoded) way.
1793 // * @param e The change notification from the currently associated
1795 // * @see DocumentListener#changeUpdate
1797 // public final void changedUpdate(DocumentEvent e) {
1798 // Rectangle alloc = (painted) ? getVisibleEditorRect() : null;
1799 // rootView.changedUpdate(e, alloc, rootView.getViewFactory());
1802 // // --- LayoutManager2 methods --------------------------------
1805 // * Adds the specified component with the specified name to
1807 // * @param name the component name
1808 // * @param comp the component to be added
1810 // public void addLayoutComponent(String name, Component comp) {
1815 // * Removes the specified component from the layout.
1816 // * @param comp the component to be removed
1818 // public void removeLayoutComponent(Component comp) {
1819 // if (constraints != null) {
1820 // // remove the constraint record
1821 // constraints.remove(comp);
1826 // * Calculates the preferred size dimensions for the specified
1827 // * panel given the components in the specified parent container.
1828 // * @param parent the component to be laid out
1830 // * @see #minimumLayoutSize
1832 // public Dimension preferredLayoutSize(Container parent) {
1833 // // should not be called (JComponent uses UI instead)
1838 // * Calculates the minimum size dimensions for the specified
1839 // * panel given the components in the specified parent container.
1840 // * @param parent the component to be laid out
1841 // * @see #preferredLayoutSize
1843 // public Dimension minimumLayoutSize(Container parent) {
1844 // // should not be called (JComponent uses UI instead)
1849 // * Lays out the container in the specified panel. This is
1850 // * implemented to position all components that were added
1851 // * with a View object as a constraint. The current allocation
1852 // * of the associated View is used as the location of the
1855 // * A read-lock is acquired on the document to prevent the
1856 // * view tree from being modified while the layout process
1859 // * @param parent the component which needs to be laid out
1861 // public void layoutContainer(Container parent) {
1862 // if ((constraints != null) && (! constraints.isEmpty())) {
1863 // Rectangle alloc = getVisibleEditorRect();
1864 // if (alloc != null) {
1865 // Document doc = editor.getDocument();
1866 // if (doc instanceof AbstractDocument) {
1867 // ((AbstractDocument)doc).readLock();
1870 // rootView.setSize(alloc.width, alloc.height);
1871 // Enumeration components = constraints.keys();
1872 // while (components.hasMoreElements()) {
1873 // Component comp = (Component) components.nextElement();
1874 // View v = (View) constraints.get(comp);
1875 // Shape ca = calculateViewPosition(alloc, v);
1876 // if (ca != null) {
1877 // Rectangle compAlloc = (ca instanceof Rectangle) ?
1878 // (Rectangle) ca : ca.getBounds();
1879 // comp.setBounds(compAlloc);
1883 // if (doc instanceof AbstractDocument) {
1884 // ((AbstractDocument)doc).readUnlock();
1892 // * Find the Shape representing the given view.
1894 // Shape calculateViewPosition(Shape alloc, View v) {
1895 // int pos = v.getStartOffset();
1896 // View child = null;
1897 // for (View parent = rootView; (parent != null) && (parent != v); parent =
1899 // int index = parent.getViewIndex(pos, Position.Bias.Forward);
1900 // alloc = parent.getChildAllocation(index, alloc);
1901 // child = parent.getView(index);
1903 // return (child != null) ? alloc : null;
1907 // * Adds the specified component to the layout, using the specified
1908 // * constraint object. We only store those components that were added
1909 // * with a constraint that is of type View.
1911 // * @param comp the component to be added
1912 // * @param constraint where/how the component is added to the layout.
1914 // public void addLayoutComponent(Component comp, Object constraint) {
1915 // if (constraint instanceof View) {
1916 // if (constraints == null) {
1917 // constraints = new Hashtable(7);
1919 // constraints.put(comp, constraint);
1924 // * Returns the maximum size of this component.
1925 // * @see jsjava.awt.Component#getMinimumSize()
1926 // * @see jsjava.awt.Component#getPreferredSize()
1927 // * @see LayoutManager
1929 // public Dimension maximumLayoutSize(Container target) {
1930 // // should not be called (JComponent uses UI instead)
1935 // * Returns the alignment along the x axis. This specifies how
1936 // * the component would like to be aligned relative to other
1937 // * components. The value should be a number between 0 and 1
1938 // * where 0 represents alignment along the origin, 1 is aligned
1939 // * the furthest away from the origin, 0.5 is centered, etc.
1941 // public float getLayoutAlignmentX(Container target) {
1946 // * Returns the alignment along the y axis. This specifies how
1947 // * the component would like to be aligned relative to other
1948 // * components. The value should be a number between 0 and 1
1949 // * where 0 represents alignment along the origin, 1 is aligned
1950 // * the furthest away from the origin, 0.5 is centered, etc.
1952 // public float getLayoutAlignmentY(Container target) {
1957 // * Invalidates the layout, indicating that if the layout manager
1958 // * has cached information it should be discarded.
1960 // public void invalidateLayout(Container target) {
1964 // * The "layout constraints" for the LayoutManager2 implementation.
1965 // * These are View objects for those components that are represented
1966 // * by a View in the View tree.
1968 // private Hashtable constraints;
1970 // private boolean i18nView = false;
1974 * Wrapper for text actions to return isEnabled false in case editor is non
1977 class TextActionWrapper extends TextAction {
1978 public TextActionWrapper(TextAction action) {
1979 super((String) action.getValue(Action.NAME));
1980 this.action = action;
1984 * The operation to perform when this action is triggered.
1989 public void actionPerformed(ActionEvent e) {
1990 action.actionPerformed(e);
1993 public boolean isEnabled() {
1994 return (editor == null || editor.isEditable()) ? action.isEnabled()
1998 TextAction action = null;
2002 * Registered in the ActionMap.
2004 class FocusAction extends AbstractAction {
2006 public void actionPerformed(ActionEvent e) {
2007 editor.requestFocus();
2010 public boolean isEnabled() {
2011 return editor.isEditable();
2015 boolean handleEnter(int eventType) {
2021 public void setEditable(boolean editable) {
2023 this.editable = editable;
2024 if (domNode == null)
2026 if (c.isBackgroundSet())
2027 bgcolor0 = JSToolkit.getCSSColor(c.getBackground());
2029 domNode.removeAttribute("readOnly");
2030 if (bgcolor0 != null)
2031 DOMNode.setStyles(domNode, "background-color", bgcolor0);
2033 DOMNode.setAttr(domNode, "readOnly", "true");
2034 if (c.isBackgroundSet()) {
2035 bgcolor0 = JSToolkit.getCSSColor(c.getBackground());
2037 if (bgcolor0 == null)
2038 bgcolor0 = domNode.getStyle("background-color");
2040 DOMNode.setStyles(domNode, "background-color", "rgba(0,0,0,0)");
2045 // private static DragListener getDragListener() {
2046 // synchronized(DragListener.class) {
2047 // DragListener listener =
2048 // (DragListener)AppContext.getAppContext().
2049 // get(DragListener.class);
2051 // if (listener == null) {
2052 // listener = new DragListener();
2053 // AppContext.getAppContext().put(DragListener.class, listener);
2061 // * Listens for mouse events for the purposes of detecting drag gestures.
2062 // * BasicTextUI will maintain one of these per AppContext.
2064 // static class DragListener extends MouseInputAdapter
2065 // implements BeforeDrag {
2067 // private boolean dragStarted;
2069 // public void dragStarting(MouseEvent me) {
2070 // dragStarted = true;
2073 // public void mousePressed(MouseEvent e) {
2074 // JTextComponent c = (JTextComponent)e.getSource();
2075 // if (c.getDragEnabled()) {
2076 // dragStarted = false;
2077 // if (isDragPossible(e) && DragRecognitionSupport.mousePressed(e)) {
2083 // public void mouseReleased(MouseEvent e) {
2084 // JTextComponent c = (JTextComponent)e.getSource();
2085 // if (c.getDragEnabled()) {
2086 // if (dragStarted) {
2090 // DragRecognitionSupport.mouseReleased(e);
2094 // public void mouseDragged(MouseEvent e) {
2095 // JTextComponent c = (JTextComponent)e.getSource();
2096 // if (c.getDragEnabled()) {
2097 // if (dragStarted || DragRecognitionSupport.mouseDragged(e, this)) {
2104 // * Determines if the following are true:
2106 // * <li>the component is enabled
2107 // * <li>the press event is located over a selection
2110 // protected boolean isDragPossible(MouseEvent e) {
2111 // JTextComponent c = (JTextComponent)e.getSource();
2112 // if (c.isEnabled()) {
2113 // Caret caret = c.getCaret();
2114 // int dot = caret.getDot();
2115 // int mark = caret.getMark();
2116 // if (dot != mark) {
2117 // Point p = new Point(e.getX(), e.getY());
2118 // int pos = c.viewToModel(p);
2120 // int p0 = Math.min(dot, mark);
2121 // int p1 = Math.max(dot, mark);
2122 // if ((pos >= p0) && (pos < p1)) {
2131 // static class TextTransferHandler extends TransferHandler implements
2134 // private JTextComponent exportComp;
2135 // private boolean shouldRemove;
2140 // * Whether or not this is a drop using
2141 // * <code>DropMode.INSERT</code>.
2143 // private boolean modeBetween = false;
2146 // * Whether or not this is a drop.
2148 // private boolean isDrop = false;
2151 // * The drop action.
2153 // private int dropAction = MOVE;
2158 // private Position.Bias dropBias;
2161 // * Try to find a flavor that can be used to import a Transferable.
2162 // * The set of usable flavors are tried in the following order:
2164 // * <li>First, an attempt is made to find a flavor matching the content type
2165 // * of the EditorKit for the component.
2166 // * <li>Second, an attempt to find a text/plain flavor is made.
2167 // * <li>Third, an attempt to find a flavor representing a String reference
2168 // * in the same VM is made.
2169 // * <li>Lastly, DataFlavor.stringFlavor is searched for.
2172 // protected DataFlavor getImportFlavor(DataFlavor[] flavors, JTextComponent
2174 // DataFlavor plainFlavor = null;
2175 // DataFlavor refFlavor = null;
2176 // DataFlavor stringFlavor = null;
2178 // if (c instanceof JEditorPane) {
2179 // for (int i = 0; i < flavors.length; i++) {
2180 // String mime = flavors[i].getMimeType();
2181 // if (mime.startsWith(((JEditorPane)c).getEditorKit().getContentType())) {
2182 // return flavors[i];
2183 // } else if (plainFlavor == null && mime.startsWith("text/plain")) {
2184 // plainFlavor = flavors[i];
2185 // } else if (refFlavor == null &&
2186 // mime.startsWith("application/x-java-jvm-local-objectref")
2187 // && flavors[i].getRepresentationClass() == jsjava.lang.String.class) {
2188 // refFlavor = flavors[i];
2189 // } else if (stringFlavor == null &&
2190 // flavors[i].equals(DataFlavor.stringFlavor)) {
2191 // stringFlavor = flavors[i];
2194 // if (plainFlavor != null) {
2195 // return plainFlavor;
2196 // } else if (refFlavor != null) {
2197 // return refFlavor;
2198 // } else if (stringFlavor != null) {
2199 // return stringFlavor;
2205 // for (int i = 0; i < flavors.length; i++) {
2206 // String mime = flavors[i].getMimeType();
2207 // if (mime.startsWith("text/plain")) {
2208 // return flavors[i];
2209 // } else if (refFlavor == null &&
2210 // mime.startsWith("application/x-java-jvm-local-objectref")
2211 // && flavors[i].getRepresentationClass() == jsjava.lang.String.class) {
2212 // refFlavor = flavors[i];
2213 // } else if (stringFlavor == null &&
2214 // flavors[i].equals(DataFlavor.stringFlavor)) {
2215 // stringFlavor = flavors[i];
2218 // if (refFlavor != null) {
2219 // return refFlavor;
2220 // } else if (stringFlavor != null) {
2221 // return stringFlavor;
2227 // * Import the given stream data into the text component.
2229 // protected void handleReaderImport(Reader in, JTextComponent c, boolean
2231 // throws BadLocationException, IOException {
2233 // int startPosition = c.getSelectionStart();
2234 // int endPosition = c.getSelectionEnd();
2235 // int length = endPosition - startPosition;
2236 // EditorKit kit = c.getUI().getEditorKit(c);
2237 // Document doc = c.getDocument();
2238 // if (length > 0) {
2239 // doc.remove(startPosition, length);
2241 // kit.read(in, doc, startPosition);
2243 // char[] buff = new char[1024];
2245 // boolean lastWasCR = false;
2247 // StringBuffer sbuff = null;
2249 // // Read in a block at a time, mapping \r\n to \n, as well as single
2251 // while ((nch = in.read(buff, 0, buff.length)) != -1) {
2252 // if (sbuff == null) {
2253 // sbuff = new StringBuffer(nch);
2256 // for(int counter = 0; counter < nch; counter++) {
2257 // switch(buff[counter]) {
2260 // if (counter == 0) {
2261 // sbuff.append('\n');
2263 // buff[counter - 1] = '\n';
2266 // lastWasCR = true;
2271 // if (counter > (last + 1)) {
2272 // sbuff.append(buff, last, counter - last - 1);
2274 // // else nothing to do, can skip \r, next write will
2276 // lastWasCR = false;
2282 // if (counter == 0) {
2283 // sbuff.append('\n');
2285 // buff[counter - 1] = '\n';
2287 // lastWasCR = false;
2292 // if (last < nch) {
2294 // if (last < (nch - 1)) {
2295 // sbuff.append(buff, last, nch - last - 1);
2298 // sbuff.append(buff, last, nch - last);
2303 // sbuff.append('\n');
2305 // c.replaceSelection(sbuff != null ? sbuff.toString() : "");
2309 // // --- TransferHandler methods ------------------------------------
2312 // * This is the type of transfer actions supported by the source. Some models
2314 // * not mutable, so a transfer operation of COPY only should
2315 // * be advertised in that case.
2317 // * @param c The component holding the data to be transfered. This
2318 // * argument is provided to enable sharing of TransferHandlers by
2319 // * multiple components.
2320 // * @return This is implemented to return NONE if the component is a
2322 // * since exporting data via user gestures is not allowed. If the text
2324 // * editable, COPY_OR_MOVE is returned, otherwise just COPY is allowed.
2326 // public int getSourceActions(JComponent c) {
2327 // if (c instanceof JPasswordField &&
2328 // c.getClientProperty("JPasswordField.cutCopyAllowed") !=
2333 // return ((JTextComponent)c).isEditable() ? COPY_OR_MOVE : COPY;
2337 // * Create a Transferable to use as the source for a data transfer.
2339 // * @param comp The component holding the data to be transfered. This
2340 // * argument is provided to enable sharing of TransferHandlers by
2341 // * multiple components.
2342 // * @return The representation of the data to be transfered.
2345 // protected Transferable createTransferable(JComponent comp) {
2346 // exportComp = (JTextComponent)comp;
2347 // shouldRemove = true;
2348 // p0 = exportComp.getSelectionStart();
2349 // p1 = exportComp.getSelectionEnd();
2350 // return (p0 != p1) ? (new TextTransferable(exportComp, p0, p1)) : null;
2354 // * This method is called after data has been exported. This method should
2356 // * the data that was transfered if the action was MOVE.
2358 // * @param source The component that was the source of the data.
2359 // * @param data The data that was transferred or possibly null
2360 // * if the action is <code>NONE</code>.
2361 // * @param action The actual action that was performed.
2363 // protected void exportDone(JComponent source, Transferable data, int action)
2365 // // only remove the text if shouldRemove has not been set to
2366 // // false by importData and only if the action is a move
2367 // if (shouldRemove && action == MOVE) {
2368 // TextTransferable t = (TextTransferable)data;
2372 // exportComp = null;
2375 // public boolean importData(TransferSupport support) {
2376 // isDrop = support.isDrop();
2380 // ((JTextComponent)support.getComponent()).getDropMode() == DropMode.INSERT;
2383 // ((JTextComponent.DropLocation)support.getDropLocation()).getBias();
2385 // dropAction = support.getDropAction();
2389 // return super.importData(support);
2392 // modeBetween = false;
2394 // dropAction = MOVE;
2399 // * This method causes a transfer to a component from a clipboard or a
2400 // * DND drop operation. The Transferable represents the data to be
2401 // * imported into the component.
2403 // * @param comp The component to receive the transfer. This
2404 // * argument is provided to enable sharing of TransferHandlers by
2405 // * multiple components.
2406 // * @param t The data to import
2407 // * @return true if the data was inserted into the component, false
2410 // public boolean importData(JComponent comp, Transferable t) {
2411 // JTextComponent c = (JTextComponent)comp;
2413 // int pos = modeBetween
2414 // ? ((JTextComponent.DropLocation)c.getDropLocation()).getIndex()
2415 // : c.getCaretPosition();
2417 // // if we are importing to the same component that we exported from
2418 // // then don't actually do anything if the drop location is inside
2419 // // the drag location and set shouldRemove to false so that exportDone
2420 // // knows not to remove any data
2421 // if (dropAction == MOVE && c == exportComp && pos >= p0 && pos <= p1) {
2422 // shouldRemove = false;
2426 // boolean imported = false;
2427 // DataFlavor importFlavor = getImportFlavor(t.getTransferDataFlavors(), c);
2428 // if (importFlavor != null) {
2430 // boolean useRead = false;
2431 // if (comp instanceof JEditorPane) {
2432 // JEditorPane ep = (JEditorPane)comp;
2433 // if (!ep.getContentType().startsWith("text/plain") &&
2434 // importFlavor.getMimeType().startsWith(ep.getContentType())) {
2438 // InputContext ic = c.getInputContext();
2439 // if (ic != null) {
2440 // ic.endComposition();
2442 // Reader r = importFlavor.getReaderForText(t);
2444 // if (modeBetween) {
2445 // Caret caret = c.getCaret();
2446 // if (caret instanceof DefaultCaret) {
2447 // ((DefaultCaret)caret).setDot(pos, dropBias);
2449 // c.setCaretPosition(pos);
2453 // handleReaderImport(r, c, useRead);
2456 // c.requestFocus();
2457 // Caret caret = c.getCaret();
2458 // if (caret instanceof DefaultCaret) {
2459 // int newPos = caret.getDot();
2460 // Position.Bias newBias = ((DefaultCaret)caret).getDotBias();
2462 // ((DefaultCaret)caret).setDot(pos, dropBias);
2463 // ((DefaultCaret)caret).moveDot(newPos, newBias);
2465 // c.select(pos, c.getCaretPosition());
2470 // } catch (UnsupportedFlavorException ufe) {
2471 // } catch (BadLocationException ble) {
2472 // } catch (IOException ioe) {
2479 // * This method indicates if a component would accept an import of the given
2480 // * set of data flavors prior to actually attempting to import it.
2482 // * @param comp The component to receive the transfer. This
2483 // * argument is provided to enable sharing of TransferHandlers by
2484 // * multiple components.
2485 // * @param flavors The data formats available
2486 // * @return true if the data can be inserted into the component, false
2489 // public boolean canImport(JComponent comp, DataFlavor[] flavors) {
2490 // JTextComponent c = (JTextComponent)comp;
2491 // if (!(c.isEditable() && c.isEnabled())) {
2494 // return (getImportFlavor(flavors, c) != null);
2498 // * A possible implementation of the Transferable interface
2499 // * for text components. For a JEditorPane with a rich set
2500 // * of EditorKit implementations, conversions could be made
2501 // * giving a wider set of formats. This is implemented to
2502 // * offer up only the active content type and text/plain
2503 // * (if that is not the active format) since that can be
2504 // * extracted from other formats.
2506 // static class TextTransferable extends BasicTransferable {
2508 // TextTransferable(JTextComponent c, int start, int end) {
2509 // super(null, null);
2513 // Document doc = c.getDocument();
2516 // p0 = doc.createPosition(start);
2517 // p1 = doc.createPosition(end);
2519 // plainData = c.getSelectedText();
2521 // if (c instanceof JEditorPane) {
2522 // JEditorPane ep = (JEditorPane)c;
2524 // mimeType = ep.getContentType();
2526 // if (mimeType.startsWith("text/plain")) {
2530 // StringWriter sw = new StringWriter(p1.getOffset() - p0.getOffset());
2531 // ep.getEditorKit().write(sw, doc, p0.getOffset(), p1.getOffset() -
2534 // if (mimeType.startsWith("text/html")) {
2535 // htmlData = sw.toString();
2537 // richText = sw.toString();
2540 // } catch (BadLocationException ble) {
2541 // } catch (IOException ioe) {
2545 // void removeText() {
2546 // if ((p0 != null) && (p1 != null) && (p0.getOffset() != p1.getOffset())) {
2548 // Document doc = c.getDocument();
2549 // doc.remove(p0.getOffset(), p1.getOffset() - p0.getOffset());
2550 // } catch (BadLocationException e) {
2555 // // ---- EditorKit other than plain or HTML text -----------------------
2558 // * If the EditorKit is not for text/plain or text/html, that format
2559 // * is supported through the "richer flavors" part of BasicTransferable.
2561 // protected DataFlavor[] getRicherFlavors() {
2562 // if (richText == null) {
2567 // DataFlavor[] flavors = new DataFlavor[3];
2568 // flavors[0] = new DataFlavor(mimeType + ";class=java.lang.String");
2569 // flavors[1] = new DataFlavor(mimeType + ";class=java.io.Reader");
2570 // flavors[2] = new DataFlavor(mimeType +
2571 // ";class=java.io.InputStream;charset=unicode");
2573 // } catch (ClassNotFoundException cle) {
2574 // // fall through to unsupported (should not happen)
2581 // * The only richer format supported is the file list flavor
2583 // protected Object getRicherData(DataFlavor flavor) throws
2584 // UnsupportedFlavorException {
2585 // if (richText == null) {
2589 // if (String.class.equals(flavor.getRepresentationClass())) {
2591 // } else if (Reader.class.equals(flavor.getRepresentationClass())) {
2592 // return new StringReader(richText);
2593 // } else if (InputStream.class.equals(flavor.getRepresentationClass())) {
2594 // return new StringBufferInputStream(richText);
2596 // throw new UnsupportedFlavorException(flavor);
2603 // JTextComponent c;
2609 // * Creates a new UI.
2611 // public JSTextUI() {
2612 // // painted = false;
2616 // * Creates the object to use for a caret. By default an
2617 // * instance of BasicCaret is created. This method
2618 // * can be redefined to provide something else that implements
2619 // * the InputPosition interface or a subclass of JCaret.
2621 // * @return the caret object
2623 // protected Caret createCaret() {
2624 // return new BasicCaret();
2628 // * Creates the object to use for adding highlights. By default
2629 // * an instance of BasicHighlighter is created. This method
2630 // * can be redefined to provide something else that implements
2631 // * the Highlighter interface or a subclass of DefaultHighlighter.
2633 // * @return the highlighter
2635 // protected Highlighter createHighlighter() {
2636 // return new BasicHighlighter();
2640 // * Fetches the name of the keymap that will be installed/used
2641 // * by default for this UI. This is implemented to create a
2642 // * name based upon the classname. The name is the the name
2643 // * of the class with the package prefix removed.
2645 // * @return the name
2647 // protected String getKeymapName() {
2648 // String nm = getClass().getName();
2649 // int index = nm.lastIndexOf('.');
2650 // if (index >= 0) {
2651 // nm = nm.substring(index+1, nm.length());
2657 // * Creates the keymap to use for the text component, and installs
2658 // * any necessary bindings into it. By default, the keymap is
2659 // * shared between all instances of this type of TextUI. The
2660 // * keymap has the name defined by the getKeymapName method. If the
2661 // * keymap is not found, then DEFAULT_KEYMAP from JTextComponent is used.
2663 // * The set of bindings used to create the keymap is fetched
2664 // * from the UIManager using a key formed by combining the
2665 // * {@link #getPropertyPrefix} method
2666 // * and the string <code>.keyBindings</code>. The type is expected
2667 // * to be <code>JTextComponent.KeyBinding[]</code>.
2669 // * @return the keymap
2670 // * @see #getKeymapName
2671 // * @see jsjavax.swing.text.JTextComponent
2673 // protected Keymap createKeymap() {
2674 // String nm = getKeymapName();
2675 // Keymap map = JTextComponent.getKeymap(nm);
2676 // if (map == null) {
2677 // Keymap parent = JTextComponent.getKeymap(JTextComponent.DEFAULT_KEYMAP);
2678 // map = JTextComponent.addKeymap(nm, parent);
2679 // String prefix = getPropertyPrefix();
2680 // Object o = DefaultLookup.get(editor, this,
2681 // prefix + ".keyBindings");
2682 // if ((o != null) && (o instanceof JTextComponent.KeyBinding[])) {
2683 // JTextComponent.KeyBinding[] bindings = (JTextComponent.KeyBinding[]) o;
2684 // JTextComponent.loadKeymap(map, bindings, getComponent().getActions());
2691 // * This method gets called when a bound property is changed
2692 // * on the associated JTextComponent. This is a hook
2693 // * which UI implementations may change to reflect how the
2694 // * UI displays bound properties of JTextComponent subclasses.
2695 // * This is implemented to do nothing (i.e. the response to
2696 // * properties in JTextComponent itself are handled prior
2697 // * to calling this method).
2699 // * This implementation updates the background of the text
2700 // * component if the editable and/or enabled state changes.
2702 // * @param evt the property change event
2704 // protected void propertyChange(PropertyChangeEvent evt) {
2705 // if (evt.getPropertyName().equals("editable") ||
2706 // evt.getPropertyName().equals("enabled")) {
2708 // updateBackground((JTextComponent)evt.getSource());
2713 // * Updates the background of the text component based on whether the
2714 // * text component is editable and/or enabled.
2716 // * @param c the JTextComponent that needs its background color updated
2718 // private void updateBackground(JTextComponent c) {
2719 // // This is a temporary workaround.
2720 // // This code does not correctly deal with Synth (Synth doesn't use
2721 // // properties like this), nor does it deal with the situation where
2722 // // the developer grabs the color from a JLabel and sets it as
2723 // // the background for a JTextArea in all look and feels. The problem
2724 // // scenario results if the Color obtained for the Label and TextArea
2725 // // is ==, which is the case for the windows look and feel.
2726 // // Until an appropriate solution is found, the code is being
2727 // // reverted to what it was before the original fix.
2728 // if (this instanceof sun.swing.plaf.synth.SynthUI ||
2729 // (c instanceof JTextArea)) {
2732 // Color background = c.getBackground();
2733 // if (background instanceof UIResource) {
2734 // String prefix = getPropertyPrefix();
2736 // Color disabledBG =
2737 // DefaultLookup.getColor(c, this, prefix + ".disabledBackground", null);
2738 // Color inactiveBG =
2739 // DefaultLookup.getColor(c, this, prefix + ".inactiveBackground", null);
2741 // DefaultLookup.getColor(c, this, prefix + ".background", null);
2743 // /* In an ideal situation, the following check would not be necessary
2744 // * and we would replace the color any time the previous color was a
2745 // * UIResouce. However, it turns out that there is existing code that
2746 // * uses the following inadvisable pattern to turn a text area into
2747 // * what appears to be a multi-line label:
2749 // * JLabel label = new JLabel();
2750 // * JTextArea area = new JTextArea();
2751 // * area.setBackground(label.getBackground());
2752 // * area.setEditable(false);
2754 // * JLabel's default background is a UIResource. As such, just
2755 // * checking for UIResource would have us always changing the
2756 // * background away from what the developer wanted.
2758 // * Therefore, for JTextArea/JEditorPane, we'll additionally check
2759 // * that the color we're about to replace matches one that was
2760 // * installed by us from the UIDefaults.
2762 // if ((c instanceof JTextArea || c instanceof JEditorPane)
2763 // && background != disabledBG
2764 // && background != inactiveBG
2765 // && background != bg) {
2770 // Color newColor = null;
2771 // if (!c.isEnabled()) {
2772 // newColor = disabledBG;
2774 // if (newColor == null && !c.isEditable()) {
2775 // newColor = inactiveBG;
2777 // if (newColor == null) {
2780 // if (newColor != null && newColor != background) {
2781 // c.setBackground(newColor);
2787 // * Gets the name used as a key to look up properties through the
2788 // * UIManager. This is used as a prefix to all the standard
2789 // * text properties.
2791 // * @return the name
2793 // protected abstract String getPropertyPrefix();
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