Class java.awt.Event
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Class java.awt.Event
java.lang.Object
|
+----java.awt.Event
- public class Event
- extends Object
Event is a platform-independent class that encapsulates events from
the local Graphical User Interface(GUI) platform.
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ACTION_EVENT
- An action event.
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ALT_MASK
-
The alt modifier constant.
-
CTRL_MASK
- The control modifier constant.
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DOWN
- The down arrow key.
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END
-
The end key.
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F1
- The F1 function key
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F10
- The F10 function key
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F11
- The F11 function key
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F12
- The F12 function key
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F2
- The F2 function key
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F3
- The F3 function key
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F4
- The F4 function key
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F5
- The F5 function key
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F6
- The F6 function key
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F7
- The F7 function key
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F8
- The F8 function key
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F9
- The F9 function key
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GOT_FOCUS
- A component gained the focus.
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HOME
-
The home key.
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KEY_ACTION
-
The key action keyboard event.
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KEY_ACTION_RELEASE
-
The key action keyboard event.
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KEY_PRESS
- The key press keyboard event.
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KEY_RELEASE
- The key release keyboard event.
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LEFT
- The left arrow key.
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LIST_DESELECT
-
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LIST_SELECT
-
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LOAD_FILE
- A file loading event.
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LOST_FOCUS
- A component lost the focus.
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META_MASK
-
The meta modifier constant.
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MOUSE_DOWN
- The mouse down event.
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MOUSE_DRAG
-
The mouse drag event.
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MOUSE_ENTER
- The mouse enter event.
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MOUSE_EXIT
- The mouse exit event.
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MOUSE_MOVE
- The mouse move event.
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MOUSE_UP
- The mouse up event.
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PGDN
- The page down key.
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PGUP
- The page up key.
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RIGHT
- The right arrow key.
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SAVE_FILE
- A file saving event.
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SCROLL_ABSOLUTE
- The absolute scroll event.
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SCROLL_LINE_DOWN
- The line down scroll event.
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SCROLL_LINE_UP
-
The line up scroll event.
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SCROLL_PAGE_DOWN
- The page down scroll event.
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SCROLL_PAGE_UP
- The page up scroll event.
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SHIFT_MASK
- The shift modifier constant.
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UP
- The up arrow key.
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WINDOW_DEICONIFY
-
The de-iconify window event.
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WINDOW_DESTROY
- The destroy window event.
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WINDOW_EXPOSE
- The expose window event.
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WINDOW_ICONIFY
-
The iconify window event.
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WINDOW_MOVED
- The move window event.
-
arg
- An arbitraty argument.
-
clickCount
- The number of consecutive clicks.
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evt
- The next event.
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id
- The type of this event.
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key
-
The key that was pressed in a keyboard event.
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modifiers
-
The state of the modifier keys.
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target
- The target component.
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when
- The time stamp.
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x
-
The x coordinate of the event.
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y
-
The y coordinate of the event.
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Event(Object, long, int, int, int, int, int, Object)
- Constructs an event with the specified target component, time stamp,
event type, x and y coordinates, keyboard key, state of the modifier
keys and argument.
-
Event(Object, long, int, int, int, int, int)
- Constructs an event with the specified target component, time stamp,
event type, x and y coordinates, keyboard key, state of the modifier
keys and an argument set to null.
-
Event(Object, int, Object)
- Constructs an event with the specified target component,
event type, and argument.
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controlDown()
- Checks if the control key is down.
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metaDown()
- Checks if the meta key is down.
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paramString()
- Returns the parameter String of this Event.
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shiftDown()
- Checks if the shift key is down.
-
toString()
- Returns the String representation of this Event's values.
-
translate(int, int)
-
Translates an event relative to the given component.
SHIFT_MASK
public final static int SHIFT_MASK
- The shift modifier constant.
CTRL_MASK
public final static int CTRL_MASK
- The control modifier constant.
META_MASK
public final static int META_MASK
- The meta modifier constant.
ALT_MASK
public final static int ALT_MASK
- The alt modifier constant.
HOME
public final static int HOME
- The home key.
END
public final static int END
- The end key.
PGUP
public final static int PGUP
- The page up key.
PGDN
public final static int PGDN
- The page down key.
UP
public final static int UP
- The up arrow key.
DOWN
public final static int DOWN
- The down arrow key.
LEFT
public final static int LEFT
- The left arrow key.
RIGHT
public final static int RIGHT
- The right arrow key.
F1
public final static int F1
- The F1 function key
F2
public final static int F2
- The F2 function key
F3
public final static int F3
- The F3 function key
F4
public final static int F4
- The F4 function key
F5
public final static int F5
- The F5 function key
F6
public final static int F6
- The F6 function key
F7
public final static int F7
- The F7 function key
F8
public final static int F8
- The F8 function key
F9
public final static int F9
- The F9 function key
F10
public final static int F10
- The F10 function key
F11
public final static int F11
- The F11 function key
F12
public final static int F12
- The F12 function key
WINDOW_DESTROY
public final static int WINDOW_DESTROY
- The destroy window event.
WINDOW_EXPOSE
public final static int WINDOW_EXPOSE
- The expose window event.
WINDOW_ICONIFY
public final static int WINDOW_ICONIFY
- The iconify window event.
WINDOW_DEICONIFY
public final static int WINDOW_DEICONIFY
- The de-iconify window event.
WINDOW_MOVED
public final static int WINDOW_MOVED
- The move window event.
KEY_PRESS
public final static int KEY_PRESS
- The key press keyboard event.
KEY_RELEASE
public final static int KEY_RELEASE
- The key release keyboard event.
KEY_ACTION
public final static int KEY_ACTION
- The key action keyboard event.
KEY_ACTION_RELEASE
public final static int KEY_ACTION_RELEASE
- The key action keyboard event.
MOUSE_DOWN
public final static int MOUSE_DOWN
- The mouse down event.
MOUSE_UP
public final static int MOUSE_UP
- The mouse up event.
MOUSE_MOVE
public final static int MOUSE_MOVE
- The mouse move event.
MOUSE_ENTER
public final static int MOUSE_ENTER
- The mouse enter event.
MOUSE_EXIT
public final static int MOUSE_EXIT
- The mouse exit event.
MOUSE_DRAG
public final static int MOUSE_DRAG
- The mouse drag event.
SCROLL_LINE_UP
public final static int SCROLL_LINE_UP
- The line up scroll event.
SCROLL_LINE_DOWN
public final static int SCROLL_LINE_DOWN
- The line down scroll event.
SCROLL_PAGE_UP
public final static int SCROLL_PAGE_UP
- The page up scroll event.
SCROLL_PAGE_DOWN
public final static int SCROLL_PAGE_DOWN
- The page down scroll event.
SCROLL_ABSOLUTE
public final static int SCROLL_ABSOLUTE
- The absolute scroll event.
LIST_SELECT
public final static int LIST_SELECT
LIST_DESELECT
public final static int LIST_DESELECT
ACTION_EVENT
public final static int ACTION_EVENT
- An action event.
LOAD_FILE
public final static int LOAD_FILE
- A file loading event.
SAVE_FILE
public final static int SAVE_FILE
- A file saving event.
GOT_FOCUS
public final static int GOT_FOCUS
- A component gained the focus.
LOST_FOCUS
public final static int LOST_FOCUS
- A component lost the focus.
target
public Object target
- The target component.
when
public long when
- The time stamp.
id
public int id
- The type of this event.
x
public int x
- The x coordinate of the event.
y
public int y
- The y coordinate of the event.
key
public int key
- The key that was pressed in a keyboard event.
modifiers
public int modifiers
- The state of the modifier keys.
clickCount
public int clickCount
- The number of consecutive clicks. This field is relevant only for
MOUSE_DOWN events. If the field isn't set it will be 0. Otherwise,
it will be 1 for single-clicks, 2 for double-clicks, and so on.
arg
public Object arg
- An arbitraty argument.
evt
public Event evt
- The next event. Used when putting events into a linked list.
Event
public Event(Object target,
long when,
int id,
int x,
int y,
int key,
int modifiers,
Object arg)
- Constructs an event with the specified target component, time stamp,
event type, x and y coordinates, keyboard key, state of the modifier
keys and argument.
- Parameters:
- target - the target component
- when - the time stamp
- id - the event type
- x - the x coordinate
- y - the y coordinate
- key - the key pressed in a keyboard event
- modifiers - the state of the modifier keys
- arg - the specified argument
Event
public Event(Object target,
long when,
int id,
int x,
int y,
int key,
int modifiers)
- Constructs an event with the specified target component, time stamp,
event type, x and y coordinates, keyboard key, state of the modifier
keys and an argument set to null.
- Parameters:
- target - the target component
- when - the time stamp
- id - the event type
- x - the x coordinate
- y - the y coordinate
- key - the key pressed in a keyboard event
- modifiers - the state of the modifier keys
Event
public Event(Object target,
int id,
Object arg)
- Constructs an event with the specified target component,
event type, and argument.
- Parameters:
- target - the target component
- id - the event type
- arg - the specified argument
translate
public void translate(int x,
int y)
- Translates an event relative to the given component. This
involves at a minimum translating the coordinates so they make
sense within the given component. It may also involve
translating a region in the case of an expose event.
- Parameters:
- x - the x coordinate
- y - the y coordinate
shiftDown
public boolean shiftDown()
- Checks if the shift key is down.
- See Also:
- modifiers, controlDown, metaDown
controlDown
public boolean controlDown()
- Checks if the control key is down.
- See Also:
- modifiers, shiftDown, metaDown
metaDown
public boolean metaDown()
- Checks if the meta key is down.
- See Also:
- modifiers, shiftDown, controlDown
paramString
protected String paramString()
- Returns the parameter String of this Event.
toString
public String toString()
- Returns the String representation of this Event's values.
- Overrides:
- toString in class Object
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