Java org.eclipse.swt.widgets Canvas fields, constructors, methods, implement or subclass

Introduction

In this page you can find the methods, fields and constructors for org.eclipse.swt.widgets Canvas.

The text is from its open source code.

Subclass

org.eclipse.swt.widgets.Canvas has subclasses.
Click this link to see all its subclasses.

Constructor

	Canvas(Composite parent, int style) Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

Method

void	addControlListener(ControlListener listener) Adds the listener to the collection of listeners who will be notified when the control is moved or resized, by sending it one of the messages defined in the `ControlListener` interface.
void	addDisposeListener(DisposeListener listener) Adds the listener to the collection of listeners who will be notified when the widget is disposed.
void	addFocusListener(FocusListener listener) Adds the listener to the collection of listeners who will be notified when the control gains or loses focus, by sending it one of the messages defined in the `FocusListener` interface.
void	addKeyListener(KeyListener listener) Adds the listener to the collection of listeners who will be notified when keys are pressed and released on the system keyboard, by sending it one of the messages defined in the `KeyListener` interface.
void	addListener(int eventType, Listener listener) Adds the listener to the collection of listeners who will be notified when an event of the given type occurs.
void	addMouseListener(MouseListener listener) Adds the listener to the collection of listeners who will be notified when mouse buttons are pressed and released, by sending it one of the messages defined in the `MouseListener` interface.
void	addPaintListener(PaintListener listener) Adds the listener to the collection of listeners who will be notified when the receiver needs to be painted, by sending it one of the messages defined in the `PaintListener` interface.
void	addTraverseListener(TraverseListener listener) Adds the listener to the collection of listeners who will be notified when traversal events occur, by sending it one of the messages defined in the `TraverseListener` interface.
Accessible	getAccessible() Returns the accessible object for the receiver.
Rectangle	getBounds() Returns a rectangle describing the receiver's size and location relative to its parent (or its display if its parent is null), unless the receiver is a shell.
Rectangle	getClientArea() Returns a rectangle which describes the area of the receiver which is capable of displaying data (that is, not covered by the "trimmings").
Object	getData(String key) Returns the application defined property of the receiver with the specified name, or null if it has not been set.
Display	getDisplay() Returns the `Display` that is associated with the receiver.
ScrollBar	getHorizontalBar() Returns the receiver's horizontal scroll bar if it has one, and null if it does not.
Point	getSize() Returns a point describing the receiver's size.
ScrollBar	getVerticalBar() Returns the receiver's vertical scroll bar if it has one, and null if it does not.
boolean	isDisposed() Returns `true` if the widget has been disposed, and `false` otherwise.
boolean	isFocusControl() Returns `true` if the receiver has the user-interface focus, and `false` otherwise.
void	redraw() Causes the entire bounds of the receiver to be marked as needing to be redrawn.
void	redraw(int x, int y, int width, int height, boolean all) Causes the rectangular area of the receiver specified by the arguments to be marked as needing to be redrawn.
void	setBackground(Color color) Sets the receiver's background color to the color specified by the argument, or to the default system color for the control if the argument is null.
void	setBounds(int x, int y, int width, int height) Sets the receiver's size and location to the rectangular area specified by the arguments.
void	setBounds(Rectangle bounds) Sets the receiver's size and location to the rectangular area specified by the argument.
void	setCursor(Cursor cursor) Sets the receiver's cursor to the cursor specified by the argument, or to the default cursor for that kind of control if the argument is null.
void	setData(String key, Object value)
boolean	setFocus()
void	setLayoutData(Object layoutData) Sets the layout data associated with the receiver to the argument.
void	setLocation(int x, int y) Sets the receiver's location to the point specified by the arguments which are relative to the receiver's parent (or its display if its parent is null), unless the receiver is a shell.
void	setSize(int width, int height) Sets the receiver's size to the point specified by the arguments.
void	update() Forces all outstanding paint requests for the widget to be processed before this method returns.