Java KeyCombination.Modifier方法代碼示例

import javafx.scene.input.KeyCombination; //導入方法依賴的package包/類
/**
 * converts a swing accelerator key to a JavaFX key combination
 *
 * @param acceleratorKey
 * @return key combination
 */
public static KeyCombination translateAccelerator(KeyStroke acceleratorKey) {
    final List<KeyCombination.Modifier> modifiers = new ArrayList<>();

    if ((acceleratorKey.getModifiers() & java.awt.event.InputEvent.SHIFT_DOWN_MASK) != 0)
        modifiers.add(KeyCombination.SHIFT_DOWN);
    if ((acceleratorKey.getModifiers() & java.awt.event.InputEvent.CTRL_DOWN_MASK) != 0)
        modifiers.add(KeyCombination.CONTROL_DOWN);
    if ((acceleratorKey.getModifiers() & java.awt.event.InputEvent.ALT_DOWN_MASK) != 0)
        modifiers.add(KeyCombination.ALT_DOWN);
    if ((acceleratorKey.getModifiers() & InputEvent.META_DOWN_MASK) != 0)
        modifiers.add(KeyCombination.META_DOWN);

    KeyCode keyCode = FXSwingUtilities.getKeyCodeFX(acceleratorKey.getKeyCode());
    return new KeyCodeCombination(keyCode, modifiers.toArray(new KeyCombination.Modifier[modifiers.size()]));
}
 

import javafx.scene.input.KeyCombination; //導入方法依賴的package包/類
protected void parseSubMenus (Menu menu, JsonArray jsonArray) {
    for (int i = 0; i < jsonArray.size(); i++) {
        //get json object
        JsonObject entry = jsonArray.getJsonObject(i);

        //get event and title
        String event = entry.getString("event");
        String title = entry.getString("title");

        //create new menu item
        MenuItem menuItem = new MenuItem(title);

        //add click handler
        menuItem.setOnAction(event1 -> {
            System.out.println("open activitiy: " + event);

            EventBus.getInstance().raiseEvent("open_activity", event);
        });

        menuItem.setAccelerator(new KeyCodeCombination(KeyCode.C, KeyCombination.CONTROL_DOWN));

        //check for shortcut
        if (entry.containsKey("shortcut") && !entry.getString("shortcut").isEmpty()) {
            String keys[] = entry.getString("shortcut").split("\\+");

            if (keys.length > 1) {
                KeyCombination.Modifier modifier = null;

                if (keys[1].equals("SHIFT_DOWN")) {
                    modifier = KeyCombination.SHIFT_DOWN;
                } else {
                    throw new UnsupportedOperationException("Unsupported key code: " + keys[1]);
                }

                //KeyCombination combination = KeyCombination.keyCombination(keys[1]);

                menuItem.setAccelerator(new KeyCodeCombination(KeyCode.getKeyCode(keys[0]), modifier));
            } else if (keys.length == 1) {
                menuItem.setAccelerator(new KeyCodeCombination(KeyCode.getKeyCode(keys[0])));
            } else {
                //no shortcut is set
            }
        }

        //add menu item to menu
        menu.getItems().add(menuItem);
    }
}
 

import javafx.scene.input.KeyCombination; //導入方法依賴的package包/類
static EventPattern<Event, KeyEvent> keyPressed(KeyCode code, KeyCombination.Modifier... modifiers) {
    return keyPressed(new KeyCodeCombination(code, modifiers));
}
 

import javafx.scene.input.KeyCombination; //導入方法依賴的package包/類
static EventPattern<Event, KeyEvent> keyReleased(KeyCode code, KeyCombination.Modifier... modifiers) {
    return keyReleased(new KeyCodeCombination(code, modifiers));
}
 

import javafx.scene.input.KeyCombination; //導入方法依賴的package包/類
static EventPattern<Event, KeyEvent> keyTyped(Predicate<String> charTest, KeyCombination.Modifier... modifiers) {
    KeyTypedCombination combination = new KeyTypedCombination(charTest, modifiers);
    return keyTyped().onlyIf(combination::match);
}
 

import javafx.scene.input.KeyCombination; //導入方法依賴的package包/類
KeyCodePatternCombination(Predicate<KeyCode> keyTest, KeyCombination.Modifier... modifiers) {
    super(modifiers);
    this.keyTest = keyTest;
}
 

import javafx.scene.input.KeyCombination; //導入方法依賴的package包/類
public KeyPairs(KeyCode keyCode, KeyCombination.Modifier... modifiers) {
    this.keyCodes = new KeyCode[]{keyCode};
    this.combination = new KeyCodeCombination(keyCode, modifiers);
}
 

import javafx.scene.input.KeyCombination; //導入方法依賴的package包/類
/**
 * Set hot key for menu element with shift
 *
 * @param item    MenuItem
 * @param keyCode KeyCode
 */
private void setHotKey(MenuItem item, KeyCode keyCode, KeyCombination.Modifier keyMod) {
    item.setAccelerator(new KeyCodeCombination(keyCode, keyMod, keyModifier));
}