Java InputMap.getParent方法代码示例

import javax.swing.InputMap; //导入方法依赖的package包/类
/** Converts an action map to a string representation. */
static public String toString(InputMap im) {
    StringBuilder result = new StringBuilder();
    LinkedHashMap<Object,Object> map = new LinkedHashMap<>();
    for (KeyStroke key : im.allKeys()) {
        map.put(key, im.get(key));
    }
    result.append(map);
    result.append('\n');
    InputMap parent = im.getParent();
    if (parent != null) {
        result.append("Parent: ");
        result.append(toString(parent));
    }
    return result.toString();
}
 

import javax.swing.InputMap; //导入方法依赖的package包/类
@Override
protected JTextComponent createCommandField() {
    JTextArea res = new DynamicWidthTA();
    res.setRows(1);
    res.setBorder(javax.swing.BorderFactory.createEmptyBorder(1, 4, 1, 1));
    // disable default Swing's Ctrl+Shift+O binding to enable our global action
    InputMap curIm = res.getInputMap(JComponent.WHEN_FOCUSED);
    while (curIm != null) {
        curIm.remove(KeyStroke.getKeyStroke(
                KeyEvent.VK_O, KeyEvent.CTRL_DOWN_MASK | KeyEvent.SHIFT_DOWN_MASK));
        curIm = curIm.getParent();
    }
    return res;
}
 

import javax.swing.InputMap; //导入方法依赖的package包/类
/**
 * Removes the "Ctrl+H <=> Backspace" behavior that Java shows, for some
 * odd reason...
 */
private void fixCtrlH() {
	InputMap inputMap = getInputMap();
	KeyStroke char010 = KeyStroke.getKeyStroke("typed \010");
	InputMap parent = inputMap;
	while (parent != null) {
		parent.remove(char010);
		parent = parent.getParent();
	}
	if (inputMap != null) { // Just for Sonar
		KeyStroke backspace = KeyStroke.getKeyStroke("BACK_SPACE");
		inputMap.put(backspace, DefaultEditorKit.deletePrevCharAction);
	}
}
 

import javax.swing.InputMap; //导入方法依赖的package包/类
/**
    * Returns whether or not bindings should be registered on the given
    * <code>JComponent</code>. This is implemented to return true if the
    * tool tip manager has a binding in any one of the
    * <code>InputMaps</code> registered under the condition
    * <code>WHEN_FOCUSED</code>.
    * <p>
    * This does not use <code>isFocusTraversable</code> as
    * some components may override <code>isFocusTraversable</code> and
    * base the return value on something other than bindings. For example,
    * <code>JButton</code> bases its return value on its enabled state.
    *
    * @param component  the <code>JComponent</code> in question
    */
   private boolean shouldRegisterBindings(JComponent component) {
InputMap inputMap = component.getInputMap(JComponent.WHEN_FOCUSED);
while (inputMap != null && inputMap.size() == 0) {
    inputMap = inputMap.getParent();
}
return (inputMap != null);
   }