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The Java Developers Almanac 1.4Order this book from Amazon. |
e1005. Listing the Key Bindings in a JTextComponent KeymapA text component has an additional list of key bindings that is searched after its inputmaps. This additional list is called a keymap. The inputmap mechanism is newer but keymaps were left in place for backwards compatibility.JTextArea component = new JTextArea(); Keymap map = component.getKeymap(); while (map != null) { KeyStroke[] keys = map.getBoundKeyStrokes(); for (int i=0; i<keys.length; i++) { // This method is defined in e859 Converting a KeyStroke to a String String keystrokeStr = keyStroke2String(keys[i]); // Get the action name bound to this keystroke Action action = (Action)map.getAction(keys[i]); } // The default action is invoked if a character is typed // and no key binding exists in the component's InputMap or Keymap. Action defAction = map.getDefaultAction(); // Process all parent keymaps as well map = map.getResolveParent(); }
e1002. Creating a Custom Editing Command for a JTextComponent e1003. Overriding a Few Default Typed Key Bindings in a JTextComponent e1004. Overriding Many Default Typed Key Bindings in a JTextComponent
© 2002 Addison-Wesley. |