jcontrol.ui.vole
Class Frame

java.lang.Object
  jcontrol.ui.vole.Component
      jcontrol.ui.vole.Container
          jcontrol.ui.vole.Frame

All Implemented Interfaces:

Runnable, ActionListener

public class Frame
extends Container
implements Runnable, ActionListener

A Frame is the starting point for creating a graphical user interface. Though several Frame instances may exist simultaneously, only one instance must be visible at the same time.

The Frame class is a manager for user interaction and maps input/output facilities such as keyboard or backlight to an underlying class framework.

(c) Copyright 2003-2005 DOMOLOGIC GmbH

Version:

1.0

Author:

Wolfgang Klingauf

Field Summary

protected static Graphics	graphics Graphics access
protected int	key_d
protected int	key_D
protected int	key_L
protected int	key_R
protected int	key_S
protected int	key_u
protected int	key_U
protected static Keyboard	keyboard Keyboard access
protected MenuInterface	menu The main menu
protected static Frame	visibleFrame The currently visible frame (only one simultaneously)

Fields inherited from class jcontrol.ui.vole.Container

children, hasFocus, TRANSFER_BACKWARD, TRANSFER_FORWARD

Fields inherited from class jcontrol.ui.vole.Component

eventQueue, focusOwner, font, g, height, listener, parent, visible, width, x, y

Constructor Summary

Frame()
Constructs a new Frame.

Frame(Graphics graphics, Keyboard keys)
Constructs a new Frame.

Method Summary

MenuInterface	getMenu() Get the frame's current menu.
void	onActionEvent(ActionEvent event) Handle ActionEvents.
boolean	onKeyEvent(KeyEvent event) Handle KeyEvents.
void	paint() Paint all components or a menu.
void	remove() Destroys this frame and all child components.
MenuInterface	removeMenu() Remove a menu from the frame.
void	run() This is the main event loop of any user interface.
void	setMenu(MenuInterface m) Add a menu to this frame.
void	setVisible(boolean b) Shows or hides the frame.
void	show() Shows the frame.

Methods inherited from class jcontrol.ui.vole.Container

add, getFocus, isCovered, remove, removeAll, removeFocus, requestFocus, setFocus, setFont, setGraphics, setRadioButton, transferFocus, transferFocus

Methods inherited from class jcontrol.ui.vole.Component

getBounds, getParent, isVisible, setBounds, setParent, transferFocus, validate

Methods inherited from class java.lang.Object

clone, equals, notifyAll, wait

Field Detail

graphics

protected static Graphics graphics

Graphics access

key_d

protected int key_d

key_D

protected int key_D

key_L

protected int key_L

key_R

protected int key_R

key_S

protected int key_S

key_u

protected int key_u

key_U

protected int key_U

keyboard

protected static Keyboard keyboard

Keyboard access

menu

protected MenuInterface menu

The main menu

visibleFrame

protected static Frame visibleFrame

The currently visible frame (only one simultaneously)

Constructor Detail

Frame

public Frame()

Constructs a new Frame.

The dimensions are equivalent to the display size. They may be changed by using setBounds().

Frame

public Frame(Graphics graphics,
             Keyboard keys)

Constructs a new Frame.

The dimensions are equivalent to the display size. They may be changed by using setBounds().

Parameters:

graphics - An instance of a custom display adapter.

keys - An instance of a keyboard interface.

Method Detail

getMenu

public MenuInterface getMenu()

Get the frame's current menu.

Returns:

Menu The current menu or null.

onActionEvent

public void onActionEvent(ActionEvent event)

Handle ActionEvents.

Specified by:

onActionEvent in interface ActionListener

Overrides:

onActionEvent in class Component

Parameters:

event - the ActionEvent

onKeyEvent

public boolean onKeyEvent(KeyEvent event)

Handle KeyEvents.

Overrides:

onKeyEvent in class Container

Parameters:

event - the KeyEvent to pass on

Returns:

This method returns false when the KeyEvent has been consumed.

paint

public void paint()

Paint all components or a menu.

Overrides:

paint in class Container

remove

public void remove()

Destroys this frame and all child components.

Overrides:

remove in class Container

removeMenu

public MenuInterface removeMenu()

Remove a menu from the frame.

Returns:

Menu The menu which was removed or null.

run

public void run()

This is the main event loop of any user interface. The method monitors input and output facilitys such as keyboard or backlight and forwards activity in the form of events to the sub-components.

Specified by:

run in interface Runnable

See Also:

Thread.run()

setMenu

public void setMenu(MenuInterface m)

Add a menu to this frame. Any prior added menu is overwritten.

Parameters:

m - The menu

setVisible

public void setVisible(boolean b)

Shows or hides the frame. When the frame is hidden, all event handlers are stopped.

Overrides:

setVisible in class Container

Parameters:

b - true-visible, false-invisible

See Also:

Component.setVisible(boolean)

show

public void show()

Shows the frame. Same as setVisible(true);