# Class VentanaLogin

java.lang.Object
java.awt.Component
java.awt.Container
java.awt.Window
java.awt.Frame
javax.swing.JFrame
Vista.VentanaLogin

All Implemented Interfaces:
  `ImageObserver, MenuContainer, Serializable, Accessible, RootPaneContainer, WindowConstants`

public class VentanaLogin extends JFrame
Ventana de inicio de sesión y registro de la aplicación MiniJuegos.

Presenta un formulario con dos modos intercambiables:

- Login: el usuario introduce sus credenciales para acceder.
- Registro: el usuario crea una cuenta nueva.

La lógica de autenticación y validación se delega completamente en `GestorUsuarios`; esta clase solo gestiona la presentación.

Version:
  2.0
Author:
  Adrián
See Also:
  - Serialized Form

- ## Nested Class Summary

  ### Nested classes/interfaces inherited from class JFrame

  `JFrame.AccessibleJFrame`

  ### Nested classes/interfaces inherited from class Frame

  `Frame.AccessibleAWTFrame`

  ### Nested classes/interfaces inherited from class Window

  `Window.AccessibleAWTWindow, Window.Type`

  ### Nested classes/interfaces inherited from class Container

  `Container.AccessibleAWTContainer`

  ### Nested classes/interfaces inherited from class Component

  `Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy`

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `private JButton`
  `btnAccion`
  `private JButton`
  `btnCambiarModo`
  `private final GestorUsuarios`
  `gestorUsuarios`
  `private JLabel`
  `lblError`
  `private JLabel`
  `lblPassword`
  `private JLabel`
  `lblSubtitulo`
  `private JLabel`
  `lblTitulo`
  `private JLabel`
  `lblUsername`
  `private boolean`
  `modoLogin`
  `private JPasswordField`
  `txtPassword`
  `private JTextField`
  `txtUsername`

  ### Fields inherited from class JFrame

  `accessibleContext, rootPane, rootPaneCheckingEnabled`

  ### Fields inherited from class Frame

  `CROSSHAIR_CURSOR, DEFAULT_CURSOR, E_RESIZE_CURSOR, HAND_CURSOR, ICONIFIED, MAXIMIZED_BOTH, MAXIMIZED_HORIZ, MAXIMIZED_VERT, MOVE_CURSOR, N_RESIZE_CURSOR, NE_RESIZE_CURSOR, NORMAL, NW_RESIZE_CURSOR, S_RESIZE_CURSOR, SE_RESIZE_CURSOR, SW_RESIZE_CURSOR, TEXT_CURSOR, W_RESIZE_CURSOR, WAIT_CURSOR`

  ### Fields inherited from class Component

  `BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT`

  ### Fields inherited from interface ImageObserver

  `ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH`

  ### Fields inherited from interface WindowConstants

  `DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, EXIT_ON_CLOSE, HIDE_ON_CLOSE`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `VentanaLogin(GestorUsuarios gestorUsuarios)`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `private void`
  `abrirMenuPrincipal()`
  `private void`
  `accionLogin()`
  `private void`
  `accionRegistro()`
  `private void`
  `actualizarModo()`
  `private void`
  `cambiarModo()`
  `private void`
  `construirUI()`
  `private JTextField`
  `crearCampoTexto()`
  `private void`
  `estilizarCampo(JTextField campo)`
  `private void`
  `limpiarError()`
  `private void`
  `mostrarError(String msg)`

  ### Methods inherited from class JFrame

  `addImpl, createRootPane, frameInit, getAccessibleContext, getContentPane, getDefaultCloseOperation, getGlassPane, getGraphics, getJMenuBar, getLayeredPane, getRootPane, getTransferHandler, isDefaultLookAndFeelDecorated, isRootPaneCheckingEnabled, paramString, processWindowEvent, remove, repaint, setContentPane, setDefaultCloseOperation, setDefaultLookAndFeelDecorated, setGlassPane, setIconImage, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, setTransferHandler, update`

  ### Methods inherited from class Frame

  `addNotify, getCursorType, getExtendedState, getFrames, getIconImage, getMaximizedBounds, getMenuBar, getState, getTitle, isResizable, isUndecorated, remove, removeNotify, setBackground, setCursor, setExtendedState, setMaximizedBounds, setMenuBar, setOpacity, setResizable, setShape, setState, setTitle, setUndecorated`

  ### Methods inherited from class Window

  `addPropertyChangeListener, addPropertyChangeListener, addWindowFocusListener, addWindowListener, addWindowStateListener, applyResourceBundle, applyResourceBundle, createBufferStrategy, createBufferStrategy, dispose, getBackground, getBufferStrategy, getFocusableWindowState, getFocusCycleRootAncestor, getFocusOwner, getFocusTraversalKeys, getIconImages, getInputContext, getListeners, getLocale, getModalExclusionType, getMostRecentFocusOwner, getOpacity, getOwnedWindows, getOwner, getOwnerlessWindows, getShape, getToolkit, getType, getWarningString, getWindowFocusListeners, getWindowListeners, getWindows, getWindowStateListeners, hide, isActive, isAlwaysOnTop, isAlwaysOnTopSupported, isAutoRequestFocus, isFocusableWindow, isFocusCycleRoot, isFocused, isLocationByPlatform, isOpaque, isShowing, isValidateRoot, pack, paint, postEvent, processEvent, processWindowFocusEvent, processWindowStateEvent, removeWindowFocusListener, removeWindowListener, removeWindowStateListener, reshape, setAlwaysOnTop, setAutoRequestFocus, setBounds, setBounds, setCursor, setFocusableWindowState, setFocusCycleRoot, setIconImages, setLocation, setLocation, setLocationByPlatform, setLocationRelativeTo, setMinimumSize, setModalExclusionType, setSize, setSize, setType, setVisible, show, toBack, toFront`

  ### Methods inherited from class Container

  `add, add, add, add, add, addContainerListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalPolicy, getInsets, getLayout, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusDownCycle, validate, validateTree`

  ### Methods inherited from class Component

  `action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, requestFocusInWindow, resize, resize, revalidate, setComponentOrientation, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setMaximumSize, setMixingCutoutShape, setName, setPreferredSize, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle`

  ### Methods inherited from class Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

  ### Methods inherited from interface MenuContainer

  `getFont, postEvent`

- ## Field Details

  - ### gestorUsuarios

    private final GestorUsuarios gestorUsuarios

  - ### lblTitulo

    private JLabel lblTitulo

  - ### lblSubtitulo

    private JLabel lblSubtitulo

  - ### lblUsername

    private JLabel lblUsername

  - ### txtUsername

    private JTextField txtUsername

  - ### lblPassword

    private JLabel lblPassword

  - ### txtPassword

    private JPasswordField txtPassword

  - ### btnAccion

    private JButton btnAccion

  - ### btnCambiarModo

    private JButton btnCambiarModo

  - ### lblError

    private JLabel lblError

  - ### modoLogin

    private boolean modoLogin

- ## Constructor Details

  - ### VentanaLogin

    public VentanaLogin(GestorUsuarios gestorUsuarios)

- ## Method Details

  - ### construirUI

    private void construirUI()

  - ### crearCampoTexto

    private JTextField crearCampoTexto()

  - ### estilizarCampo

    private void estilizarCampo(JTextField campo)

  - ### accionLogin

    private void accionLogin()

  - ### accionRegistro

    private void accionRegistro()

  - ### cambiarModo

    private void cambiarModo()

  - ### actualizarModo

    private void actualizarModo()

  - ### mostrarError

    private void mostrarError(String msg)

  - ### limpiarError

    private void limpiarError()

  - ### abrirMenuPrincipal

    private void abrirMenuPrincipal()