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Showing content from http://java.sun.com/j2se/1.5/docs/api/java/lang/../../java/util/regex/../../../java/awt/Frame.html below:

Frame (Java 2 Platform SE 5.0)

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 WindowEvents:

• 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:

JDK1.0

See Also:

WindowEvent, Window.addWindowListener(java.awt.event.WindowListener), Serialized Form

@Deprecated
public static final int DEFAULT_CURSOR

Deprecated. replaced by Cursor.DEFAULT_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int CROSSHAIR_CURSOR

Deprecated. replaced by Cursor.CROSSHAIR_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int TEXT_CURSOR

Deprecated. replaced by Cursor.TEXT_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int WAIT_CURSOR

Deprecated. replaced by Cursor.WAIT_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int SW_RESIZE_CURSOR

Deprecated. replaced by Cursor.SW_RESIZE_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int SE_RESIZE_CURSOR

Deprecated. replaced by Cursor.SE_RESIZE_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int NW_RESIZE_CURSOR

Deprecated. replaced by Cursor.NW_RESIZE_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int NE_RESIZE_CURSOR

Deprecated. replaced by Cursor.NE_RESIZE_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int N_RESIZE_CURSOR

Deprecated. replaced by Cursor.N_RESIZE_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int S_RESIZE_CURSOR

Deprecated. replaced by Cursor.S_RESIZE_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int W_RESIZE_CURSOR

Deprecated. replaced by Cursor.W_RESIZE_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int E_RESIZE_CURSOR

Deprecated. replaced by Cursor.E_RESIZE_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int HAND_CURSOR

Deprecated. replaced by Cursor.HAND_CURSOR.

See Also:

Constant Field Values

@Deprecated
public static final int MOVE_CURSOR

Deprecated. replaced by Cursor.MOVE_CURSOR.

See Also:

Constant Field Values

public static final int NORMAL

Frame is in the "normal" state. This symbolic constant names a frame state with all state bits cleared.

See Also:

setExtendedState(int), getExtendedState(), Constant Field Values

public static final int ICONIFIED

This state bit indicates that frame is iconified.

See Also:

setExtendedState(int), getExtendedState(), Constant Field Values

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

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

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

public Frame()
      throws HeadlessException

Constructs a new instance of Frame that is initially invisible. The title of the Frame is empty.

Throws:

HeadlessException - when GraphicsEnvironment.isHeadless() returns true

See Also:

GraphicsEnvironment.isHeadless(), Component.setSize(int, int), Component.setVisible(boolean)

public Frame(GraphicsConfiguration gc)

Create a Frame with the specified GraphicsConfiguration of a screen device.

Parameters:

gc - the GraphicsConfiguration of the target screen device. If gc is null, the system default GraphicsConfiguration is assumed.

Throws:

IllegalArgumentException - if gc is not from a screen device. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true

Since:

1.3

See Also:

GraphicsEnvironment.isHeadless()

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. A null value is treated as an empty string, "".

Throws:

HeadlessException - when GraphicsEnvironment.isHeadless() returns true

See Also:

GraphicsEnvironment.isHeadless(), Component.setSize(int, int), Component.setVisible(boolean), GraphicsConfiguration.getBounds()

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. A null value is treated as an empty string, "".

gc - the GraphicsConfiguration of the target screen device. If gc is null, the system default GraphicsConfiguration is assumed.

Throws:

IllegalArgumentException - if gc is not from a screen device. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true

See Also:

GraphicsEnvironment.isHeadless(), Component.setSize(int, int), Component.setVisible(boolean), GraphicsConfiguration.getBounds()

protected void finalize()
                 throws Throwable

Disposes of the input methods and context, and removes this Frame from the AppContext. Subclasses that override this method should call super.finalize().

Overrides:

finalize in class Window

Throws:

Throwable - the Exception raised by this method

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 class Window

See Also:

Component.isDisplayable(), removeNotify()

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)

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. A null value is treated as an empty string, "".

See Also:

getTitle()

public Image getIconImage()

Gets the image to be displayed in the minimized icon for this frame.

Returns:

the icon image for this frame, or null if this frame doesn't have an icon image.

See Also:

setIconImage(Image)

public void setIconImage(Image image)

Sets the image to be displayed in the minimized icon for this frame. Not all platforms support the concept of minimizing a window.

Parameters:

image - the icon image to be displayed. If this parameter is null then the icon image is set to the default image, which may vary with platform.

See Also:

getIconImage()

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)

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 is null then any existing menu bar on this frame is removed.

See Also:

getMenuBar()

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)

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()

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 old programs this method still accepts Frame.NORMAL and Frame.ICONIFIED but it only changes the iconic state of the frame, other aspects of frame state are not affected by this method.

Parameters:

state - either Frame.NORMAL or Frame.ICONIFIED.

See Also:

getState(), setExtendedState(int)

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
  Concatenates MAXIMIZED_HORIZ and MAXIMIZED_VERT.

Note that if the state is not supported on a given platform, nothing will happen. The application may determine if a specific state is available via the java.awt.Toolkit#isFrameStateSupported(int state) method.

Parameters:

state - a bitwise mask of frame state constants

Since:

1.4

See Also:

getExtendedState(), Toolkit.isFrameStateSupported(int)

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 or Frame.ICONIFIED.

See Also:

setState(int), 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
  Concatenates MAXIMIZED_HORIZ and MAXIMIZED_VERT.

Returns:

a bitwise mask of frame state constants

Since:

1.4

See Also:

setExtendedState(int)

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.

On some systems only the size portion of the bounds is taken into account.

Parameters:

bounds - bounds for the maximized state

Since:

1.4

See Also:

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)

public void setUndecorated(boolean undecorated)

Disables or enables decorations for this frame. This method can only be called while the frame is not displayable.

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.

Since:

1.4

See Also:

isUndecorated(), Component.isDisplayable(), JFrame.setDefaultLookAndFeelDecorated(boolean)

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)

public void remove(MenuComponent m)

Removes the specified menu bar from this frame.

Specified by:

remove in interface MenuContainer

Overrides:

remove in class Component

Parameters:

m - the menu component to remove. If m is null, then no action is taken

See Also:

Component.add(PopupMenu)

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 class Container

See Also:

Component.isDisplayable(), addNotify()

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 class Container

Returns:

the parameter string of this frame

@Deprecated
public void setCursor(int cursorType)

Deprecated. As of JDK version 1.1, replaced by Component.setCursor(Cursor).

@Deprecated
public int getCursorType()

Deprecated. As of JDK version 1.1, replaced by Component.getCursor().

public static Frame[] getFrames()

Returns an array containing all Frames created by the application. If called from an applet, the array will only include the Frames accessible by that applet.

Since:

1.2

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 interface Accessible

Overrides:

getAccessibleContext in class Window

Returns:

an AccessibleAWTFrame that serves as the AccessibleContext of this Frame

Copyright © 2004, 2010 Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

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