Class Frame
- java.lang.Object
-
- java.awt.Component
-
- java.awt.Container
-
- java.awt.Window
-
- java.awt.Frame
- All Implemented Interfaces:
-
ImageObserver
,MenuContainer
,Serializable
,Accessible
- Direct Known Subclasses:
JFrame
public class Frame extends Window implements MenuContainer
A Frame
is a top-level window with a title and a border.
The size of the frame includes any area designated for the border. The dimensions of the border area may be obtained using the getInsets
method, however, since these dimensions are platform-dependent, a valid insets value cannot be obtained until the frame is made displayable by either calling pack
or show
. Since the border area is included in the overall size of the frame, the border effectively obscures a portion of the frame, constraining the area available for rendering and/or displaying subcomponents to the rectangle which has an upper-left corner location of (insets.left, insets.top)
, and has a size of width - (insets.left + insets.right)
by height - (insets.top + insets.bottom)
.
The default layout for a frame is BorderLayout
.
A frame may have its native decorations (i.e. Frame
and Titlebar
) turned off with setUndecorated
. This can only be done while the frame is not displayable
.
In a multi-screen environment, you can create a Frame
on a different screen device by constructing the Frame
with Frame(GraphicsConfiguration)
or Frame(String title, GraphicsConfiguration)
. The GraphicsConfiguration
object is one of the GraphicsConfiguration
objects of the target screen device.
In a virtual device multi-screen environment in which the desktop area could span multiple physical screen devices, the bounds of all configurations are relative to the virtual-coordinate system. The origin of the virtual-coordinate system is at the upper left-hand corner of the primary physical screen. Depending on the location of the primary screen in the virtual device, negative coordinates are possible, as shown in the following figure.
In such an environment, when calling setLocation
, you must pass a virtual coordinate to this method. Similarly, calling getLocationOnScreen
on a Frame
returns virtual device coordinates. Call the getBounds
method of a GraphicsConfiguration
to find its origin in the virtual coordinate system.
The following code sets the location of the Frame
at (10, 10) relative to the origin of the physical screen of the corresponding GraphicsConfiguration
. If the bounds of the GraphicsConfiguration
is not taken into account, the Frame
location would be set at (10, 10) relative to the virtual-coordinate system and would appear on the primary physical screen, which might be different from the physical screen of the specified GraphicsConfiguration
.
Frame f = new Frame(GraphicsConfiguration gc); Rectangle bounds = gc.getBounds(); f.setLocation(10 + bounds.x, 10 + bounds.y);
Frames are capable of generating the following types of WindowEvent
s:
-
WINDOW_OPENED
-
WINDOW_CLOSING
:
If the program doesn't explicitly hide or dispose the window while processing this event, the window close operation is canceled. -
WINDOW_CLOSED
-
WINDOW_ICONIFIED
-
WINDOW_DEICONIFIED
-
WINDOW_ACTIVATED
-
WINDOW_DEACTIVATED
-
WINDOW_GAINED_FOCUS
-
WINDOW_LOST_FOCUS
-
WINDOW_STATE_CHANGED
- Since:
- 1.0
- See Also:
-
WindowEvent
,Window.addWindowListener(java.awt.event.WindowListener)
, Serialized Form
Nested Class Summary
Modifier and Type | Class | Description |
---|---|---|
protected class | Frame.AccessibleAWTFrame | This class implements accessibility support for the |
Nested classes/interfaces declared in class java.awt.Window
Window.AccessibleAWTWindow, Window.Type
Nested classes/interfaces declared in class java.awt.Container
Container.AccessibleAWTContainer
Nested classes/interfaces declared in class java.awt.Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
Field Summary
Modifier and Type | Field | Description |
---|---|---|
static int | CROSSHAIR_CURSOR | Deprecated. replaced by Cursor.CROSSHAIR_CURSOR . |
static int | DEFAULT_CURSOR | Deprecated. replaced by Cursor.DEFAULT_CURSOR . |
static int | E_RESIZE_CURSOR | Deprecated. replaced by Cursor.E_RESIZE_CURSOR . |
static int | HAND_CURSOR | Deprecated. replaced by Cursor.HAND_CURSOR . |
static int | ICONIFIED | This state bit indicates that frame is iconified. |
static int | MAXIMIZED_BOTH | This state bit mask indicates that frame is fully maximized (that is both horizontally and vertically). |
static int | MAXIMIZED_HORIZ | This state bit indicates that frame is maximized in the horizontal direction. |
static int | MAXIMIZED_VERT | This state bit indicates that frame is maximized in the vertical direction. |
static int | MOVE_CURSOR | Deprecated. replaced by Cursor.MOVE_CURSOR . |
static int | N_RESIZE_CURSOR | Deprecated. replaced by Cursor.N_RESIZE_CURSOR . |
static int | NE_RESIZE_CURSOR | Deprecated. replaced by Cursor.NE_RESIZE_CURSOR . |
static int | NORMAL | Frame is in the "normal" state. |
static int | NW_RESIZE_CURSOR | Deprecated. replaced by Cursor.NW_RESIZE_CURSOR . |
static int | S_RESIZE_CURSOR | Deprecated. replaced by Cursor.S_RESIZE_CURSOR . |
static int | SE_RESIZE_CURSOR | Deprecated. replaced by Cursor.SE_RESIZE_CURSOR . |
static int | SW_RESIZE_CURSOR | Deprecated. replaced by Cursor.SW_RESIZE_CURSOR . |
static int | TEXT_CURSOR | Deprecated. replaced by Cursor.TEXT_CURSOR . |
static int | W_RESIZE_CURSOR | Deprecated. replaced by Cursor.W_RESIZE_CURSOR . |
static int | WAIT_CURSOR | Deprecated. replaced by Cursor.WAIT_CURSOR . |
Fields declared in class java.awt.Component
accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
Fields declared in interface java.awt.image.ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
Constructor Summary
Constructor | Description |
---|---|
Frame() | Constructs a new instance of |
Frame(GraphicsConfiguration gc) | Constructs a new, initially invisible |
Frame(String title) | Constructs a new, initially invisible |
Frame(String title,
GraphicsConfiguration gc) | Constructs a new, initially invisible |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void | addNotify() | Makes this Frame displayable by connecting it to a native screen resource. |
AccessibleContext | getAccessibleContext() | Gets the AccessibleContext associated with this Frame. |
int | getCursorType() | Deprecated. As of JDK version 1.1, replaced by Component.getCursor() . |
int | getExtendedState() | Gets the state of this frame. |
static Frame[] | getFrames() | Returns an array of all |
Image | getIconImage() | Returns the image to be displayed as the icon for this frame. |
Rectangle | getMaximizedBounds() | Gets maximized bounds for this frame. |
MenuBar | getMenuBar() | Gets the menu bar for this frame. |
int | getState() | Gets the state of this frame (obsolete). |
String | getTitle() | Gets the title of the frame. |
boolean | isResizable() | Indicates whether this frame is resizable by the user. |
boolean | isUndecorated() | Indicates whether this frame is undecorated. |
protected String | paramString() | Returns a string representing the state of this |
void | remove(MenuComponent m) | Removes the specified menu bar from this frame. |
void | removeNotify() | Makes this Frame undisplayable by removing its connection to its native screen resource. |
void | setCursor(int cursorType) | Deprecated. As of JDK version 1.1, replaced by Component.setCursor(Cursor) . |
void | setExtendedState(int state) | Sets the state of this frame. |
void | setMaximizedBounds(Rectangle bounds) | Sets the maximized bounds for this frame. |
void | setMenuBar(MenuBar mb) | Sets the menu bar for this frame to the specified menu bar. |
void | setResizable(boolean resizable) | Sets whether this frame is resizable by the user. |
void | setState(int state) | Sets the state of this frame (obsolete). |
void | setTitle(String title) | Sets the title for this frame to the specified string. |
void | setUndecorated(boolean undecorated) | Disables or enables decorations for this frame. |
Methods declared in class java.awt.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, processWindowEvent, processWindowFocusEvent, processWindowStateEvent, removeWindowFocusListener, removeWindowListener, removeWindowStateListener, reshape, setAlwaysOnTop, setAutoRequestFocus, setBackground, setBounds, setBounds, setCursor, setFocusableWindowState, setFocusCycleRoot, setIconImage, setIconImages, setLocation, setLocation, setLocationByPlatform, setLocationRelativeTo, setMinimumSize, setModalExclusionType, setOpacity, setShape, setSize, setSize, setType, setVisible, show, toBack, toFront
Methods declared in class java.awt.Container
add, add, add, add, add, addContainerListener, addImpl, 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, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, setLayout, transferFocusDownCycle, update, validate, validateTree
Methods declared in class java.awt.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, getGraphics, 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, 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 declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods declared in interface java.awt.MenuContainer
getFont, postEvent
Field Detail
DEFAULT_CURSOR
@Deprecated public static final int DEFAULT_CURSOR
Cursor.DEFAULT_CURSOR
.- See Also:
- Constant Field Values
CROSSHAIR_CURSOR
@Deprecated public static final int CROSSHAIR_CURSOR
Cursor.CROSSHAIR_CURSOR
.- See Also:
- Constant Field Values
TEXT_CURSOR
@Deprecated public static final int TEXT_CURSOR
Cursor.TEXT_CURSOR
.- See Also:
- Constant Field Values
WAIT_CURSOR
@Deprecated public static final int WAIT_CURSOR
Cursor.WAIT_CURSOR
.- See Also:
- Constant Field Values
SW_RESIZE_CURSOR
@Deprecated public static final int SW_RESIZE_CURSOR
Cursor.SW_RESIZE_CURSOR
.- See Also:
- Constant Field Values
SE_RESIZE_CURSOR
@Deprecated public static final int SE_RESIZE_CURSOR
Cursor.SE_RESIZE_CURSOR
.- See Also:
- Constant Field Values
NW_RESIZE_CURSOR
@Deprecated public static final int NW_RESIZE_CURSOR
Cursor.NW_RESIZE_CURSOR
.- See Also:
- Constant Field Values
NE_RESIZE_CURSOR
@Deprecated public static final int NE_RESIZE_CURSOR
Cursor.NE_RESIZE_CURSOR
.- See Also:
- Constant Field Values
N_RESIZE_CURSOR
@Deprecated public static final int N_RESIZE_CURSOR
Cursor.N_RESIZE_CURSOR
.- See Also:
- Constant Field Values
S_RESIZE_CURSOR
@Deprecated public static final int S_RESIZE_CURSOR
Cursor.S_RESIZE_CURSOR
.- See Also:
- Constant Field Values
W_RESIZE_CURSOR
@Deprecated public static final int W_RESIZE_CURSOR
Cursor.W_RESIZE_CURSOR
.- See Also:
- Constant Field Values
E_RESIZE_CURSOR
@Deprecated public static final int E_RESIZE_CURSOR
Cursor.E_RESIZE_CURSOR
.- See Also:
- Constant Field Values
HAND_CURSOR
@Deprecated public static final int HAND_CURSOR
Cursor.HAND_CURSOR
.- See Also:
- Constant Field Values
MOVE_CURSOR
@Deprecated public static final int MOVE_CURSOR
Cursor.MOVE_CURSOR
.- See Also:
- Constant Field Values
NORMAL
public static final int NORMAL
Frame is in the "normal" state. This symbolic constant names a frame state with all state bits cleared.
ICONIFIED
public static final int ICONIFIED
This state bit indicates that frame is iconified.
MAXIMIZED_HORIZ
public static final int MAXIMIZED_HORIZ
This state bit indicates that frame is maximized in the horizontal direction.
- Since:
- 1.4
- See Also:
-
setExtendedState(int)
,getExtendedState()
, Constant Field Values
MAXIMIZED_VERT
public static final int MAXIMIZED_VERT
This state bit indicates that frame is maximized in the vertical direction.
- Since:
- 1.4
- See Also:
-
setExtendedState(int)
,getExtendedState()
, Constant Field Values
MAXIMIZED_BOTH
public static final int MAXIMIZED_BOTH
This state bit mask indicates that frame is fully maximized (that is both horizontally and vertically). It is just a convenience alias for MAXIMIZED_VERT | MAXIMIZED_HORIZ
.
Note that the correct test for frame being fully maximized is
(state & Frame.MAXIMIZED_BOTH) == Frame.MAXIMIZED_BOTH
To test is frame is maximized in some direction use
(state & Frame.MAXIMIZED_BOTH) != 0
- Since:
- 1.4
- See Also:
-
setExtendedState(int)
,getExtendedState()
, Constant Field Values
Constructor Detail
Frame
public Frame() throws HeadlessException
Constructs a new instance of Frame
that is initially invisible. The title of the Frame
is empty.
- Throws:
-
HeadlessException
- whenGraphicsEnvironment.isHeadless()
returnstrue
- See Also:
-
GraphicsEnvironment.isHeadless()
,Component.setSize(int, int)
,Component.setVisible(boolean)
Frame
public Frame(GraphicsConfiguration gc)
Constructs a new, initially invisible Frame
with the specified GraphicsConfiguration
.
- Parameters:
-
gc
- theGraphicsConfiguration
of the target screen device. Ifgc
isnull
, the system defaultGraphicsConfiguration
is assumed. - Throws:
-
IllegalArgumentException
- ifgc
is not from a screen device. -
HeadlessException
- whenGraphicsEnvironment.isHeadless()
returnstrue
- Since:
- 1.3
- See Also:
GraphicsEnvironment.isHeadless()
Frame
public Frame(String title) throws HeadlessException
Constructs a new, initially invisible Frame
object with the specified title.
- Parameters:
-
title
- the title to be displayed in the frame's border. Anull
value is treated as an empty string, "". - Throws:
-
HeadlessException
- whenGraphicsEnvironment.isHeadless()
returnstrue
- See Also:
-
GraphicsEnvironment.isHeadless()
,Component.setSize(int, int)
,Component.setVisible(boolean)
,GraphicsConfiguration.getBounds()
Frame
public Frame(String title, GraphicsConfiguration gc)
Constructs a new, initially invisible Frame
object with the specified title and a GraphicsConfiguration
.
- Parameters:
-
title
- the title to be displayed in the frame's border. Anull
value is treated as an empty string, "". -
gc
- theGraphicsConfiguration
of the target screen device. Ifgc
isnull
, the system defaultGraphicsConfiguration
is assumed. - Throws:
-
IllegalArgumentException
- ifgc
is not from a screen device. -
HeadlessException
- whenGraphicsEnvironment.isHeadless()
returnstrue
- Since:
- 1.3
- See Also:
-
GraphicsEnvironment.isHeadless()
,Component.setSize(int, int)
,Component.setVisible(boolean)
,GraphicsConfiguration.getBounds()
Method Detail
addNotify
public void addNotify()
Makes this Frame displayable by connecting it to a native screen resource. Making a frame displayable will cause any of its children to be made displayable. This method is called internally by the toolkit and should not be called directly by programs.
- Overrides:
-
addNotify
in classWindow
- See Also:
-
Component.isDisplayable()
,removeNotify()
getTitle
public String getTitle()
Gets the title of the frame. The title is displayed in the frame's border.
- Returns:
- the title of this frame, or an empty string ("") if this frame doesn't have a title.
- See Also:
setTitle(String)
setTitle
public void setTitle(String title)
Sets the title for this frame to the specified string.
- Parameters:
-
title
- the title to be displayed in the frame's border. Anull
value is treated as an empty string, "". - See Also:
getTitle()
getIconImage
public Image getIconImage()
Returns the image to be displayed as the icon for this frame.
This method is obsolete and kept for backward compatibility only. Use Window.getIconImages()
instead.
If a list of several images was specified as a Window's icon, this method will return the first item of the list.
- Returns:
- the icon image for this frame, or
null
if this frame doesn't have an icon image. - See Also:
-
Window.setIconImage(Image)
,Window.getIconImages()
,Window.setIconImages(java.util.List<? extends java.awt.Image>)
getMenuBar
public MenuBar getMenuBar()
Gets the menu bar for this frame.
- Returns:
- the menu bar for this frame, or
null
if this frame doesn't have a menu bar. - See Also:
setMenuBar(MenuBar)
setMenuBar
public void setMenuBar(MenuBar mb)
Sets the menu bar for this frame to the specified menu bar.
- Parameters:
-
mb
- the menu bar being set. If this parameter isnull
then any existing menu bar on this frame is removed. - See Also:
getMenuBar()
isResizable
public boolean isResizable()
Indicates whether this frame is resizable by the user. By default, all frames are initially resizable.
- Returns:
-
true
if the user can resize this frame;false
otherwise. - See Also:
setResizable(boolean)
setResizable
public void setResizable(boolean resizable)
Sets whether this frame is resizable by the user.
- Parameters:
-
resizable
-true
if this frame is resizable;false
otherwise. - See Also:
isResizable()
setState
public void setState(int state)
Sets the state of this frame (obsolete).
In older versions of JDK a frame state could only be NORMAL or ICONIFIED. Since JDK 1.4 set of supported frame states is expanded and frame state is represented as a bitwise mask.
For compatibility with applications developed earlier this method still accepts Frame.NORMAL
and Frame.ICONIFIED
only. The iconic state of the frame is only changed, other aspects of frame state are not affected by this method. If the state passed to this method is neither
Frame.NORMAL
nor Frame.ICONIFIED
the method performs no actions at all.
Note that if the state is not supported on a given platform, neither the state nor the return value of the getState()
method will be changed. The application may determine whether a specific state is supported via the Toolkit.isFrameStateSupported(int)
method.
If the frame is currently visible on the screen (the Window.isShowing()
method returns true
), the developer should examine the return value of the WindowEvent.getNewState()
method of the WindowEvent
received through the WindowStateListener
to determine that the state has actually been changed.
If the frame is not visible on the screen, the events may or may not be generated. In this case the developer may assume that the state changes immediately after this method returns. Later, when the
setVisible(true)
method is invoked, the frame will attempt to apply this state. Receiving any WindowEvent.WINDOW_STATE_CHANGED
events is not guaranteed in this case also.
- Parameters:
-
state
- eitherFrame.NORMAL
orFrame.ICONIFIED
. - See Also:
-
setExtendedState(int)
,Window.addWindowStateListener(java.awt.event.WindowStateListener)
setExtendedState
public void setExtendedState(int state)
Sets the state of this frame. The state is represented as a bitwise mask.
-
NORMAL
Indicates that no state bits are set. -
ICONIFIED
-
MAXIMIZED_HORIZ
-
MAXIMIZED_VERT
-
MAXIMIZED_BOTH
ConcatenatesMAXIMIZED_HORIZ
andMAXIMIZED_VERT
.
Note that if the state is not supported on a given platform, neither the state nor the return value of the getExtendedState()
method will be changed. The application may determine whether a specific state is supported via the Toolkit.isFrameStateSupported(int)
method.
If the frame is currently visible on the screen (the Window.isShowing()
method returns true
), the developer should examine the return value of the WindowEvent.getNewState()
method of the WindowEvent
received through the WindowStateListener
to determine that the state has actually been changed.
If the frame is not visible on the screen, the events may or may not be generated. In this case the developer may assume that the state changes immediately after this method returns. Later, when the
setVisible(true)
method is invoked, the frame will attempt to apply this state. Receiving any WindowEvent.WINDOW_STATE_CHANGED
events is not guaranteed in this case also.
- Parameters:
-
state
- a bitwise mask of frame state constants - Since:
- 1.4
- See Also:
Window.addWindowStateListener(java.awt.event.WindowStateListener)
getState
public int getState()
Gets the state of this frame (obsolete).
In older versions of JDK a frame state could only be NORMAL or ICONIFIED. Since JDK 1.4 set of supported frame states is expanded and frame state is represented as a bitwise mask.
For compatibility with old programs this method still returns Frame.NORMAL
and Frame.ICONIFIED
but it only reports the iconic state of the frame, other aspects of frame state are not reported by this method.
- Returns:
-
Frame.NORMAL
orFrame.ICONIFIED
. - See Also:
-
setState(int)
,getExtendedState()
getExtendedState
public int getExtendedState()
Gets the state of this frame. The state is represented as a bitwise mask.
-
NORMAL
Indicates that no state bits are set. -
ICONIFIED
-
MAXIMIZED_HORIZ
-
MAXIMIZED_VERT
-
MAXIMIZED_BOTH
ConcatenatesMAXIMIZED_HORIZ
andMAXIMIZED_VERT
.
- Returns:
- a bitwise mask of frame state constants
- Since:
- 1.4
- See Also:
setExtendedState(int)
setMaximizedBounds
public void setMaximizedBounds(Rectangle bounds)
Sets the maximized bounds for this frame.
When a frame is in maximized state the system supplies some defaults bounds. This method allows some or all of those system supplied values to be overridden.
If bounds
is null
, accept bounds supplied by the system. If non-null
you can override some of the system supplied values while accepting others by setting those fields you want to accept from system to Integer.MAX_VALUE
.
Note, the given maximized bounds are used as a hint for the native system, because the underlying platform may not support setting the location and/or size of the maximized windows. If that is the case, the provided values do not affect the appearance of the frame in the maximized state.
- Parameters:
-
bounds
- bounds for the maximized state - Since:
- 1.4
- See Also:
getMaximizedBounds()
getMaximizedBounds
public Rectangle getMaximizedBounds()
Gets maximized bounds for this frame. Some fields may contain Integer.MAX_VALUE
to indicate that system supplied values for this field must be used.
- Returns:
- maximized bounds for this frame; may be
null
- Since:
- 1.4
- See Also:
setMaximizedBounds(Rectangle)
setUndecorated
public void setUndecorated(boolean undecorated)
Disables or enables decorations for this frame.
This method can only be called while the frame is not displayable. To make this frame decorated, it must be opaque and have the default shape, otherwise the IllegalComponentStateException
will be thrown. Refer to Window.setShape(java.awt.Shape)
, Window.setOpacity(float)
and Window.setBackground(java.awt.Color)
for details
- Parameters:
-
undecorated
-true
if no frame decorations are to be enabled;false
if frame decorations are to be enabled - Throws:
-
IllegalComponentStateException
- if the frame is displayable -
IllegalComponentStateException
- ifundecorated
isfalse
, and this frame does not have the default shape -
IllegalComponentStateException
- ifundecorated
isfalse
, and this frame opacity is less than1.0f
-
IllegalComponentStateException
- ifundecorated
isfalse
, and the alpha value of this frame background color is less than1.0f
- Since:
- 1.4
- See Also:
-
isUndecorated()
,Component.isDisplayable()
,Window.getShape()
,Window.getOpacity()
,Window.getBackground()
,JFrame.setDefaultLookAndFeelDecorated(boolean)
isUndecorated
public boolean isUndecorated()
Indicates whether this frame is undecorated. By default, all frames are initially decorated.
- Returns:
-
true
if frame is undecorated;false
otherwise. - Since:
- 1.4
- See Also:
setUndecorated(boolean)
remove
public void remove(MenuComponent m)
Removes the specified menu bar from this frame.
- Specified by:
-
remove
in interfaceMenuContainer
- Overrides:
-
remove
in classComponent
- Parameters:
-
m
- the menu component to remove. Ifm
isnull
, then no action is taken - See Also:
Component.add(PopupMenu)
removeNotify
public void removeNotify()
Makes this Frame undisplayable by removing its connection to its native screen resource. Making a Frame undisplayable will cause any of its children to be made undisplayable. This method is called by the toolkit internally and should not be called directly by programs.
- Overrides:
-
removeNotify
in classContainer
- See Also:
-
Component.isDisplayable()
,addNotify()
paramString
protected String paramString()
Returns a string representing the state of this Frame
. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null
.
- Overrides:
-
paramString
in classContainer
- Returns:
- the parameter string of this frame
setCursor
@Deprecated public void setCursor(int cursorType)
Component.setCursor(Cursor)
.Sets the cursor for this frame to the specified type.
- Parameters:
-
cursorType
- the cursor type
getCursorType
@Deprecated public int getCursorType()
Component.getCursor()
.- Returns:
- the cursor type for this frame
getFrames
public static Frame[] getFrames()
Returns an array of all Frame
s created by this application. If called from an applet, the array includes only the Frame
s accessible by that applet.
Warning: this method may return system created frames, such as a shared, hidden frame which is used by Swing. Applications should not assume the existence of these frames, nor should an application assume anything about these frames such as component positions, LayoutManager
s or serialization.
Note: To obtain a list of all ownerless windows, including ownerless Dialog
s (introduced in release 1.6), use Window.getOwnerlessWindows
.
- Returns:
- the array of all
Frame
s created by this application - Since:
- 1.2
- See Also:
-
Window.getWindows()
,Window.getOwnerlessWindows()
getAccessibleContext
public AccessibleContext getAccessibleContext()
Gets the AccessibleContext associated with this Frame. For frames, the AccessibleContext takes the form of an AccessibleAWTFrame. A new AccessibleAWTFrame instance is created if necessary.
- Specified by:
-
getAccessibleContext
in interfaceAccessible
- Overrides:
-
getAccessibleContext
in classWindow
- Returns:
- an AccessibleAWTFrame that serves as the AccessibleContext of this Frame
- Since:
- 1.3