Get Key Text : KeyStroke « Swing Event « Java Tutorial

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Java Tutorial » Swing Event » KeyStroke 
15. 22. 22. Get Key Text
/*
 * Copyright 2000,2005 wingS development team.
 *
 * This file is part of wingS (http://wingsframework.org).
 *
 * wingS is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1
 * of the License, or (at your option) any later version.
 *
 * Please see COPYING for the complete licence.
 */



import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;

import javax.swing.KeyStroke;

/**
 * This source code was taken from a code example at http://javaalmanac.com/
 * and slightly altered to fit our purpose.
 @author ole
 *
 */
public class KeystrokeUtil {

    public static String keyStroke2String(KeyStroke key) {
        if (key == nullreturn "";
        StringBuilder s = new StringBuilder(50);
        int m = key.getModifiers();

        if ((m & (InputEvent.CTRL_DOWN_MASK|InputEvent.CTRL_MASK)) != 0) {
            s.append("Ctrl+");
        }
        if ((m & (InputEvent.META_DOWN_MASK|InputEvent.META_MASK)) != 0) {
            s.append("Meta+");
        }
        if ((m & (InputEvent.ALT_DOWN_MASK|InputEvent.ALT_MASK)) != 0) {
            s.append("Alt+");
        }
        if ((m & (InputEvent.SHIFT_DOWN_MASK|InputEvent.SHIFT_MASK)) != 0) {
            s.append("Shift+");
        }
        if ((m & (InputEvent.BUTTON1_DOWN_MASK|InputEvent.BUTTON1_MASK)) != 0) {
            s.append("Button1+");
        }
        if ((m & (InputEvent.BUTTON2_DOWN_MASK|InputEvent.BUTTON2_MASK)) != 0) {
            s.append("Button2+");
        }
        if ((m & (InputEvent.BUTTON3_DOWN_MASK|InputEvent.BUTTON3_MASK)) != 0) {
            s.append("Button3+");
        }

        switch (key.getKeyEventType()) {
        case KeyEvent.KEY_TYPED:
            s.append(key.getKeyChar() " ");
            break;
        case KeyEvent.KEY_PRESSED:
        case KeyEvent.KEY_RELEASED:
            s.append(getKeyText(key.getKeyCode()) " ");
            break;
        default:
            s.append("unknown-event-type ");
            break;
        }

        return s.toString();
    }

    public static String getKeyText(int keyCode) {
        if (keyCode >= KeyEvent.VK_0 && keyCode <= KeyEvent.VK_9 ||
            keyCode >= KeyEvent.VK_A && keyCode <= KeyEvent.VK_Z) {
            return String.valueOf((char)keyCode);
        }

        switch(keyCode) {
          case KeyEvent.VK_COMMA: return "COMMA";
          case KeyEvent.VK_PERIOD: return "PERIOD";
          case KeyEvent.VK_SLASH: return "SLASH";
          case KeyEvent.VK_SEMICOLON: return "SEMICOLON";
          case KeyEvent.VK_EQUALS: return "EQUALS";
          case KeyEvent.VK_OPEN_BRACKET: return "OPEN_BRACKET";
          case KeyEvent.VK_BACK_SLASH: return "BACK_SLASH";
          case KeyEvent.VK_CLOSE_BRACKET: return "CLOSE_BRACKET";

          case KeyEvent.VK_ENTER: return "ENTER";
          case KeyEvent.VK_BACK_SPACE: return "BACK_SPACE";
          case KeyEvent.VK_TAB: return "TAB";
          case KeyEvent.VK_CANCEL: return "CANCEL";
          case KeyEvent.VK_CLEAR: return "CLEAR";
          case KeyEvent.VK_SHIFT: return "SHIFT";
          case KeyEvent.VK_CONTROL: return "CONTROL";
          case KeyEvent.VK_ALT: return "ALT";
          case KeyEvent.VK_PAUSE: return "PAUSE";
          case KeyEvent.VK_CAPS_LOCK: return "CAPS_LOCK";
          case KeyEvent.VK_ESCAPE: return "ESCAPE";
          case KeyEvent.VK_SPACE: return "SPACE";
          case KeyEvent.VK_PAGE_UP: return "PAGE_UP";
          case KeyEvent.VK_PAGE_DOWN: return "PAGE_DOWN";
          case KeyEvent.VK_END: return "END";
          case KeyEvent.VK_HOME: return "HOME";
          case KeyEvent.VK_LEFT: return "LEFT";
          case KeyEvent.VK_UP: return "UP";
          case KeyEvent.VK_RIGHT: return "RIGHT";
          case KeyEvent.VK_DOWN: return "DOWN";

          // numpad numeric keys handled below
          case KeyEvent.VK_MULTIPLY: return "MULTIPLY";
          case KeyEvent.VK_ADD: return "ADD";
          case KeyEvent.VK_SEPARATOR: return "SEPARATOR";
          case KeyEvent.VK_SUBTRACT: return "SUBTRACT";
          case KeyEvent.VK_DECIMAL: return "DECIMAL";
          case KeyEvent.VK_DIVIDE: return "DIVIDE";
          case KeyEvent.VK_DELETE: return "DELETE";
          case KeyEvent.VK_NUM_LOCK: return "NUM_LOCK";
          case KeyEvent.VK_SCROLL_LOCK: return "SCROLL_LOCK";

          case KeyEvent.VK_F1: return "F1";
          case KeyEvent.VK_F2: return "F2";
          case KeyEvent.VK_F3: return "F3";
          case KeyEvent.VK_F4: return "F4";
          case KeyEvent.VK_F5: return "F5";
          case KeyEvent.VK_F6: return "F6";
          case KeyEvent.VK_F7: return "F7";
          case KeyEvent.VK_F8: return "F8";
          case KeyEvent.VK_F9: return "F9";
          case KeyEvent.VK_F10: return "F10";
          case KeyEvent.VK_F11: return "F11";
          case KeyEvent.VK_F12: return "F12";
          case KeyEvent.VK_F13: return "F13";
          case KeyEvent.VK_F14: return "F14";
          case KeyEvent.VK_F15: return "F15";
          case KeyEvent.VK_F16: return "F16";
          case KeyEvent.VK_F17: return "F17";
          case KeyEvent.VK_F18: return "F18";
          case KeyEvent.VK_F19: return "F19";
          case KeyEvent.VK_F20: return "F20";
          case KeyEvent.VK_F21: return "F21";
          case KeyEvent.VK_F22: return "F22";
          case KeyEvent.VK_F23: return "F23";
          case KeyEvent.VK_F24: return "F24";

          case KeyEvent.VK_PRINTSCREEN: return "PRINTSCREEN";
          case KeyEvent.VK_INSERT: return "INSERT";
          case KeyEvent.VK_HELP: return "HELP";
          case KeyEvent.VK_META: return "META";
          case KeyEvent.VK_BACK_QUOTE: return "BACK_QUOTE";
          case KeyEvent.VK_QUOTE: return "QUOTE";

          case KeyEvent.VK_KP_UP: return "KP_UP";
          case KeyEvent.VK_KP_DOWN: return "KP_DOWN";
          case KeyEvent.VK_KP_LEFT: return "KP_LEFT";
          case KeyEvent.VK_KP_RIGHT: return "KP_RIGHT";

          case KeyEvent.VK_DEAD_GRAVE: return "DEAD_GRAVE";
          case KeyEvent.VK_DEAD_ACUTE: return "DEAD_ACUTE";
          case KeyEvent.VK_DEAD_CIRCUMFLEX: return "DEAD_CIRCUMFLEX";
          case KeyEvent.VK_DEAD_TILDE: return "DEAD_TILDE";
          case KeyEvent.VK_DEAD_MACRON: return "DEAD_MACRON";
          case KeyEvent.VK_DEAD_BREVE: return "DEAD_BREVE";
          case KeyEvent.VK_DEAD_ABOVEDOT: return "DEAD_ABOVEDOT";
          case KeyEvent.VK_DEAD_DIAERESIS: return "DEAD_DIAERESIS";
          case KeyEvent.VK_DEAD_ABOVERING: return "DEAD_ABOVERING";
          case KeyEvent.VK_DEAD_DOUBLEACUTE: return "DEAD_DOUBLEACUTE";
          case KeyEvent.VK_DEAD_CARON: return "DEAD_CARON";
          case KeyEvent.VK_DEAD_CEDILLA: return "DEAD_CEDILLA";
          case KeyEvent.VK_DEAD_OGONEK: return "DEAD_OGONEK";
          case KeyEvent.VK_DEAD_IOTA: return "DEAD_IOTA";
          case KeyEvent.VK_DEAD_VOICED_SOUND: return "DEAD_VOICED_SOUND";
          case KeyEvent.VK_DEAD_SEMIVOICED_SOUND: return "DEAD_SEMIVOICED_SOUND";

          case KeyEvent.VK_AMPERSAND: return "AMPERSAND";
          case KeyEvent.VK_ASTERISK: return "ASTERISK";
          case KeyEvent.VK_QUOTEDBL: return "QUOTEDBL";
          case KeyEvent.VK_LESS: return "LESS";
          case KeyEvent.VK_GREATER: return "GREATER";
          case KeyEvent.VK_BRACELEFT: return "BRACELEFT";
          case KeyEvent.VK_BRACERIGHT: return "BRACERIGHT";
          case KeyEvent.VK_AT: return "AT";
          case KeyEvent.VK_COLON: return "COLON";
          case KeyEvent.VK_CIRCUMFLEX: return "CIRCUMFLEX";
          case KeyEvent.VK_DOLLAR: return "DOLLAR";
          case KeyEvent.VK_EURO_SIGN: return "EURO_SIGN";
          case KeyEvent.VK_EXCLAMATION_MARK: return "EXCLAMATION_MARK";
          case KeyEvent.VK_INVERTED_EXCLAMATION_MARK:
                   return "INVERTED_EXCLAMATION_MARK";
          case KeyEvent.VK_LEFT_PARENTHESIS: return "LEFT_PARENTHESIS";
          case KeyEvent.VK_NUMBER_SIGN: return "NUMBER_SIGN";
          case KeyEvent.VK_MINUS: return "MINUS";
          case KeyEvent.VK_PLUS: return "PLUS";
          case KeyEvent.VK_RIGHT_PARENTHESIS: return "RIGHT_PARENTHESIS";
          case KeyEvent.VK_UNDERSCORE: return "UNDERSCORE";

          case KeyEvent.VK_FINAL: return "FINAL";
          case KeyEvent.VK_CONVERT: return "CONVERT";
          case KeyEvent.VK_NONCONVERT: return "NONCONVERT";
          case KeyEvent.VK_ACCEPT: return "ACCEPT";
          case KeyEvent.VK_MODECHANGE: return "MODECHANGE";
          case KeyEvent.VK_KANA: return "KANA";
          case KeyEvent.VK_KANJI: return "KANJI";
          case KeyEvent.VK_ALPHANUMERIC: return "ALPHANUMERIC";
          case KeyEvent.VK_KATAKANA: return "KATAKANA";
          case KeyEvent.VK_HIRAGANA: return "HIRAGANA";
          case KeyEvent.VK_FULL_WIDTH: return "FULL_WIDTH";
          case KeyEvent.VK_HALF_WIDTH: return "HALF_WIDTH";
          case KeyEvent.VK_ROMAN_CHARACTERS: return "ROMAN_CHARACTERS";
          case KeyEvent.VK_ALL_CANDIDATES: return "ALL_CANDIDATES";
          case KeyEvent.VK_PREVIOUS_CANDIDATE: return "PREVIOUS_CANDIDATE";
          case KeyEvent.VK_CODE_INPUT: return "CODE_INPUT";
          case KeyEvent.VK_JAPANESE_KATAKANA: return "JAPANESE_KATAKANA";
          case KeyEvent.VK_JAPANESE_HIRAGANA: return "JAPANESE_HIRAGANA";
          case KeyEvent.VK_JAPANESE_ROMAN: return "JAPANESE_ROMAN";
          case KeyEvent.VK_KANA_LOCK: return "KANA_LOCK";
          case KeyEvent.VK_INPUT_METHOD_ON_OFF: return "INPUT_METHOD_ON_OFF";

          case KeyEvent.VK_AGAIN: return "AGAIN";
          case KeyEvent.VK_UNDO: return "UNDO";
          case KeyEvent.VK_COPY: return "COPY";
          case KeyEvent.VK_PASTE: return "PASTE";
          case KeyEvent.VK_CUT: return "CUT";
          case KeyEvent.VK_FIND: return "FIND";
          case KeyEvent.VK_PROPS: return "PROPS";
          case KeyEvent.VK_STOP: return "STOP";

          case KeyEvent.VK_COMPOSE: return "COMPOSE";
          case KeyEvent.VK_ALT_GRAPH: return "ALT_GRAPH";
        }

        if (keyCode >= KeyEvent.VK_NUMPAD0 && keyCode <= KeyEvent.VK_NUMPAD9) {
            char c = (char)(keyCode - KeyEvent.VK_NUMPAD0 + '0');
            return "NUMPAD"+c;
        }

        return "unknown(0x" + Integer.toString(keyCode, 16")";
    }
}
15. 22. KeyStroke
15. 22. 1. KeyStroke Class
15. 22. 2. Creating a KeyStroke
15. 22. 3. Registering a KeyStrokeRegistering a KeyStroke
15. 22. 4. KeyStroke Sample: VKEnterKeyStroke Sample: VKEnter
15. 22. 5. KeyStroke Sample: function key and Shift keyKeyStroke Sample: function key and Shift key
15. 22. 6. KeyStroke Sample: Space keyKeyStroke Sample: Space key
15. 22. 7. List keystrokes in the WHEN_ANCESTOR_OF_FOCUSED_COMPONENT input map of the component
15. 22. 8. List keystrokes in the WHEN_IN_FOCUSED_WINDOW input map of the component
15. 22. 9. Converting a KeyStroke to a String
15. 22. 10. Creating a KeyStroke and Binding It to an Action
15. 22. 11. KeyStroke.getKeyStroke('F2')
15. 22. 12. Overriding - key
15. 22. 13. Override $ key
15. 22. 14. Overriding space key
15. 22. 15. Set java.awt.Container.getFocusTraversalKeys(int id)
15. 22. 16. Activating a Keystroke When Any Component in the Window Has Focus
15. 22. 17. Remove all forward focus traversal keys for the application
15. 22. 18. Remove all backward focus traversal keys for the application
15. 22. 19. Activating a Keystroke When Any Child Component Has Focus
15. 22. 20. Bind a keystroke to shift-space
15. 22. 21. KeyStroke to String
15. 22. 22. Get Key Text
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