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Class awt.DisplayItemWindow

java.lang.Object
   |
   +----awt.Component
           |
           +----awt.Container
                   |
                   +----awt.Window
                           |
                           +----awt.DisplayItemWindow

public class DisplayItemWindow

extends Window

Version:

1.43 10 Apr 1995

Author:

Jonathan Payne

currentInputItem

fm

logicalHeight

logicalWidth

scrollX

scrollY

stickyTracking

valid

DisplayItemWindow(Frame, String)

Creates a DisplayItemWindow that is contained inside a Frame.

DisplayItemWindow(Window, String)

Creates a DisplayItemWindow that is contained inside a Window

addItem(DisplayItem, String)

Adds an named DisplayItem to the window.

addItem(DisplayItem)

Adds an unnamed DisplayItem to the window.

addNativeItem(NativeDisplayItem)

Adds a DisplayItem that is a subclass of NativeDisplayItem.

addUpdateRequest(DIWUpdateRequest)

clearItems()

Clears the list of DisplayItems for this window.

clearNativeItems()

Clears the list of native display items.

count()

Returns the number of DisplayItem's contained in this window.

dragAbsolute(int)

getItems()

Returns the array of items in this window.

getScrollY()

handleExpose(int, int, int, int)

Callback for exposing a region of a window.

handleResize()

Called in response to a resize action by the user.

invalidate()

Indicates that this DisplayItemWindow needs updating.

keyPressed(Event)

Override this method to take some action when a key is pressed in this window.

lineDown()

lineUp()

locateItem(int, int)

Returns the DisplayItem which contains x,y.

map()

Shows this window.

mouseDown(Event)

Forwards a mouseDown event to the DisplayItem that contains the current mouse coordinates.

mouseDrag(Event)

Forwards a mouse drag event to the DisplayItem that contains the current mouse coordinates.

mouseMoved(Event)

Forwards a mouse motion event to the DisplayItem that contains the current mouse coordinates.

mouseUp(Event)

Override this method to take some action when the mouse button is released.

nthItem(int)

Returns the item at the given index.

pageDown()

pageUp()

paint()

Paints all of the DisplayItems in this window.

paintChild(DisplayItem, boolean)

Requests that the given DisplayItem be repainted.

scrollAbsolute(int, int)

scrollHorizontally(int)

scrollVertically(int)

setScrollbar(Scrollbar)

Set the scrollbar for this DisplayItemWindow to s

setScrolling(int, int)

setSticky(boolean)

unMap()

Hides this window.

updateChild(DisplayItem, boolean)

Updates the given DisplayItem.

updateScrollbar()

Updates the scrollbar to reflect the current size of the window.

validate()

Marks this window as valid (not in need of repainting)

  protected int logicalWidth

  protected int logicalHeight

  protected DisplayItem currentInputItem

  protected boolean stickyTracking

  protected boolean valid

  protected int scrollX

  protected int scrollY

  public FocusManager fm

  public DisplayItemWindow(Frame f,
                           String name)

Creates a DisplayItemWindow that is contained inside a Frame.

DisplayItemWindow

  public DisplayItemWindow(Window parent,
                           String client)

Creates a DisplayItemWindow that is contained inside a Window

  public void setScrollbar(Scrollbar s)

Set the scrollbar for this DisplayItemWindow to s

invalidate

  public void invalidate()

Indicates that this DisplayItemWindow needs updating.

updateScrollbar

  public void updateScrollbar()

Updates the scrollbar to reflect the current size of the window.

validate

  public void validate()

Marks this window as valid (not in need of repainting)

handleExpose

  public synchronized void handleExpose(int x,
                                        int y,
                                        int w,
                                        int h)

Callback for exposing a region of a window.

Overrides:

handleExpose in class Window

handleResize

  public void handleResize()

Called in response to a resize action by the user. Redoes the window layout and marks the window as invalid.

Overrides:

handleResize in class Window

addItem

  public synchronized void addItem(DisplayItem di,
                                   String name)

Adds an named DisplayItem to the window.

addItem

  public synchronized void addItem(DisplayItem di)

Adds an unnamed DisplayItem to the window.

getItems

  public DisplayItem getItems()

Returns the array of items in this window.

addNativeItem

  protected synchronized void addNativeItem(NativeDisplayItem di)

Adds a DisplayItem that is a subclass of NativeDisplayItem. This method is needed because DisplayItem's that are native gui components require special treatment.

See Also:

NativeDisplayItem

clearNativeItems

  protected synchronized void clearNativeItems()

Clears the list of native display items.

nthItem

  public DisplayItem nthItem(int n)

Returns the item at the given index.

clearItems

  public synchronized void clearItems()

Clears the list of DisplayItems for this window. The deactivate method is called on each item before being removed from the list.

See Also:

deactivate

count

  public int count()

Returns the number of DisplayItem's contained in this window.

setScrolling

  public void setScrolling(int x,
                           int y)

  public void paint()

Paints all of the DisplayItems in this window.

Overrides:

paint in class Window

map

  public void map()

Shows this window.

Overrides:

map in class Window

unMap

  public void unMap()

Hides this window.

Overrides:

unMap in class Window

paintChild

  public void paintChild(DisplayItem di,
                         boolean clear)

Requests that the given DisplayItem be repainted.

updateChild

  public void updateChild(DisplayItem di,
                          boolean clear)

Updates the given DisplayItem.

addUpdateRequest

  public void addUpdateRequest(DIWUpdateRequest r)

  public synchronized DisplayItem locateItem(int x,
                                             int y)

Returns the DisplayItem which contains x,y.

mouseDown

  public void mouseDown(Event e)

Forwards a mouseDown event to the DisplayItem that contains the current mouse coordinates.

Overrides:

mouseDown in class Window

mouseDrag

  public void mouseDrag(Event e)

Forwards a mouse drag event to the DisplayItem that contains the current mouse coordinates.

Overrides:

mouseDrag in class Window

mouseMoved

  public void mouseMoved(Event e)

Forwards a mouse motion event to the DisplayItem that contains the current mouse coordinates.

Overrides:

mouseMoved in class Window

mouseUp

  public void mouseUp(Event e)

Override this method to take some action when the mouse button is released.

Overrides:

mouseUp in class Window

setSticky

  public void setSticky(boolean on)

  public int getScrollY()

  public void scrollAbsolute(int x,
                             int y)

  public synchronized boolean scrollHorizontally(int dx)

  public synchronized boolean scrollVertically(int dy)

  public void lineUp()

  public void lineDown()

  public void pageUp()

  public void pageDown()

  public void dragAbsolute(int value)

  public void keyPressed(Event event)

Override this method to take some action when a key is pressed in this window.

Overrides:

keyPressed in class Window

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