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org.eclipse.swt.widgets
Class Control  

java.lang.Object
  org.eclipse.swt.widgets.Widget
      org.eclipse.swt.widgets.Control

All Implemented Interfaces:

org.eclipse.swt.graphics.Drawable

Direct Known Subclasses:

Button, Label, ProgressBar, Sash, Scale, Scrollable, Slider

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public abstract class Control

extends Widget

implements org.eclipse.swt.graphics.Drawable

Control is the abstract superclass of all windowed user interface classes.

Styles:

BORDER

LEFT_TO_RIGHT, RIGHT_TO_LEFT

Events:

FocusIn, FocusOut, Help, KeyDown, KeyUp, MouseDoubleClick, MouseDown, MouseEnter, MouseExit, MouseHover, MouseUp, MouseMove, Move, Paint, Resize, Traverse, DragDetect, MenuDetect

Only one of LEFT_TO_RIGHT or RIGHT_TO_LEFT may be specified.

IMPORTANT: This class is intended to be subclassed only within the SWT implementation.

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Field Summary
(package private)  org.eclipse.swt.accessibility.Accessible	accessible
(package private)  org.eclipse.swt.graphics.Cursor	cursor
(package private)  int	drawCount
(package private)  long	enableWindow
(package private)  long	fixedHandle
(package private)  org.eclipse.swt.graphics.Font	font
(package private)  java.lang.Object	layoutData
(package private)  Menu	menu
(package private)  Composite	parent
(package private)  long	redrawWindow
(package private)  java.lang.String	toolTipText

 

Fields inherited from class org.eclipse.swt.widgets.Widget

ACTIVATE, BUTTON_PRESS_EVENT, BUTTON_RELEASE_EVENT, CANVAS, CHANGED, CLICKED, COMMIT, CONFIGURE_EVENT, data, DEFAULT_HEIGHT, DEFAULT_WIDTH, DELETE_EVENT, DELETE_RANGE, DELETE_TEXT, DISABLED, display, DISPOSED, ENTER_NOTIFY_EVENT, EVENT, EVENT_AFTER, eventTable, EXPOSE_EVENT, FOCUS, FOCUS_IN_EVENT, FOCUS_OUT_EVENT, handle, HANDLE, HIDE, INSERT_TEXT, KEY_PRESS_EVENT, KEY_RELEASE_EVENT, KEYED_DATA, LEAVE_NOTIFY_EVENT, MAP_EVENT, MENU, MNEMONIC_ACTIVATE, MOTION_NOTIFY_EVENT, OBSCURED, POPUP_MENU, PREEDIT_CHANGED, REALIZE, ROW_ACTIVATED, SCROLL_CHILD, SELECT, SHOW, SHOW_HELP, SIZE_ALLOCATE, state, style, STYLE_SET, SWITCH_PAGE, TEST_COLLAPSE_ROW, TEST_EXPAND_ROW, TOGGLED, UNMAP_EVENT, UNREALIZE, VALUE_CHANGED, VISIBILITY_NOTIFY_EVENT, WINDOW_STATE_EVENT

 

Constructor Summary
(package private)	Control()
	Control(Composite parent, int style)           Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

 

Method Summary
(package private)  Shell	_getShell()
void	addControlListener(org.eclipse.swt.events.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	addFocusListener(org.eclipse.swt.events.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	addHelpListener(org.eclipse.swt.events.HelpListener listener)           Adds the listener to the collection of listeners who will be notified when help events are generated for the control, by sending it one of the messages defined in the HelpListener interface.
void	addKeyListener(org.eclipse.swt.events.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	addMouseListener(org.eclipse.swt.events.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	addMouseMoveListener(org.eclipse.swt.events.MouseMoveListener listener)           Adds the listener to the collection of listeners who will be notified when the mouse moves, by sending it one of the messages defined in the MouseMoveListener interface.
void	addMouseTrackListener(org.eclipse.swt.events.MouseTrackListener listener)           Adds the listener to the collection of listeners who will be notified when the mouse passes or hovers over controls, by sending it one of the messages defined in the MouseTrackListener interface.
void	addPaintListener(org.eclipse.swt.events.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(org.eclipse.swt.events.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.
(package private)  org.eclipse.swt.graphics.Point	computeNativeSize(long h, int wHint, int hHint, boolean changed)
org.eclipse.swt.graphics.Point	computeSize(int wHint, int hHint)           Returns the preferred size of the receiver.
org.eclipse.swt.graphics.Point	computeSize(int wHint, int hHint, boolean changed)           Returns the preferred size of the receiver.
(package private)  Control	computeTabGroup()
(package private)  Control[]	computeTabList()
(package private)  Control	computeTabRoot()
(package private)  void	createWidget(int index)
(package private)  long	defaultFont()
(package private)  void	deregister()
(package private)  boolean	drawGripper(int x, int y, int width, int height)
(package private)  void	enableWidget(boolean enabled)
(package private)  long	eventHandle()
(package private)  boolean	filterKey(int keyval, long event)
(package private)  Menu[]	findMenus(Control control)
(package private)  void	fixChildren(Shell newShell, Shell oldShell, Decorations newDecorations, Decorations oldDecorations, Menu[] menus)
(package private)  void	fixFocus(Control focusControl)
(package private)  long	focusHandle()
(package private)  long	fontHandle()
boolean	forceFocus()           Forces the receiver to have the keyboard focus, causing all keyboard events to be delivered to it.
(package private)  boolean	forceFocus(long focusHandle)
org.eclipse.swt.accessibility.Accessible	getAccessible()           Returns the accessible object for the receiver.
org.eclipse.swt.graphics.Color	getBackground()           Returns the receiver's background color.
(package private)  org.eclipse.swt.internal.gtk.GdkColor	getBackgroundColor()
(package private)  org.eclipse.swt.internal.gtk.GdkColor	getBaseColor()
(package private)  org.eclipse.swt.internal.gtk.GdkColor	getBgColor()
int	getBorderWidth()           Returns the receiver's border width.
org.eclipse.swt.graphics.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.
boolean	getEnabled()           Returns true if the receiver is enabled, and false otherwise.
(package private)  org.eclipse.swt.internal.gtk.GdkColor	getFgColor()
org.eclipse.swt.graphics.Font	getFont()           Returns the font that the receiver will use to paint textual information.
(package private)  long	getFontDescription()
org.eclipse.swt.graphics.Color	getForeground()           Returns the foreground color that the receiver will use to draw.
(package private)  org.eclipse.swt.internal.gtk.GdkColor	getForegroundColor()
(package private)  org.eclipse.swt.graphics.Point	getIMCaretPos()
java.lang.Object	getLayoutData()           Returns layout data which is associated with the receiver.
org.eclipse.swt.graphics.Point	getLocation()           Returns a point describing the receiver's location relative to its parent (or its display if its parent is null), unless the receiver is a shell.
Menu	getMenu()           Returns the receiver's pop up menu if it has one, or null if it does not.
Monitor	getMonitor()           Returns the receiver's monitor.
Composite	getParent()           Returns the receiver's parent, which must be a Composite or null when the receiver is a shell that was created with null or a display for a parent.
(package private)  Control[]	getPath()
Shell	getShell()           Returns the receiver's shell.
org.eclipse.swt.graphics.Point	getSize()           Returns a point describing the receiver's size.
(package private)  org.eclipse.swt.internal.gtk.GdkColor	getTextColor()
java.lang.String	getToolTipText()           Returns the receiver's tool tip text, or null if it has not been set.
boolean	getVisible()           Returns true if the receiver is visible, and false otherwise.
(package private)  long	gtk_button_press_event(long widget, long event)
(package private)  long	gtk_button_release_event(long widget, long event)
(package private)  long	gtk_commit(long imcontext, long text)
(package private)  long	gtk_enter_notify_event(long widget, long event)
(package private)  long	gtk_event_after(long widget, long gdkEvent)
(package private)  long	gtk_expose_event(long widget, long eventPtr)
(package private)  long	gtk_focus_in_event(long widget, long event)
(package private)  long	gtk_focus_out_event(long widget, long event)
(package private)  long	gtk_focus(long widget, long directionType)
(package private)  long	gtk_key_press_event(long widget, long event)
(package private)  long	gtk_key_release_event(long widget, long event)
(package private)  long	gtk_leave_notify_event(long widget, long event)
(package private)  long	gtk_mnemonic_activate(long widget, long arg1)
(package private)  long	gtk_motion_notify_event(long widget, long event)
(package private)  long	gtk_popup_menu(long widget)
(package private)  long	gtk_preedit_changed(long imcontext)
(package private)  long	gtk_realize(long widget)
(package private)  long	gtk_show_help(long widget, long helpType)
(package private)  long	gtk_unrealize(long widget)
(package private)  long	gtk_visibility_notify_event(long widget, long event)
(package private)  boolean	hasFocus()
(package private)  void	hookEvents()
(package private)  long	hoverProc(long widget)
(package private)  long	imHandle()
void	internal_dispose_GC(long gdkGC, org.eclipse.swt.graphics.GCData data)           Invokes platform specific functionality to dispose a GC handle.
long	internal_new_GC(org.eclipse.swt.graphics.GCData data)           Invokes platform specific functionality to allocate a new GC handle.
boolean	isEnabled()           Returns true if the receiver is enabled and all of the receiver's ancestors are enabled, and false otherwise.
(package private)  boolean	isFocusAncestor(Control control)
boolean	isFocusControl()           Returns true if the receiver has the user-interface focus, and false otherwise.
boolean	isReparentable()           Returns true if the underlying operating system supports this reparenting, otherwise false
(package private)  boolean	isShowing()
(package private)  boolean	isTabGroup()
(package private)  boolean	isTabItem()
boolean	isVisible()           Returns true if the receiver is visible and all of the receiver's ancestors are visible and false otherwise.
(package private)  Decorations	menuShell()
(package private)  boolean	mnemonicHit(char key)
(package private)  boolean	mnemonicMatch(char key)
void	moveAbove(Control control)           Moves the receiver above the specified control in the drawing order.
void	moveBelow(Control control)           Moves the receiver below the specified control in the drawing order.
(package private)  void	moveHandle(int x, int y)
void	pack()           Causes the receiver to be resized to its preferred size.
void	pack(boolean changed)           Causes the receiver to be resized to its preferred size.
(package private)  long	paintHandle()
(package private)  long	paintWindow()
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.
(package private)  void	redrawWidget(int x, int y, int width, int height, boolean all)
(package private)  void	register()
(package private)  void	releaseChild()
(package private)  void	releaseHandle()
(package private)  void	releaseWidget()
void	removeControlListener(org.eclipse.swt.events.ControlListener listener)           Removes the listener from the collection of listeners who will be notified when the control is moved or resized.
void	removeFocusListener(org.eclipse.swt.events.FocusListener listener)           Removes the listener from the collection of listeners who will be notified when the control gains or loses focus.
void	removeHelpListener(org.eclipse.swt.events.HelpListener listener)           Removes the listener from the collection of listeners who will be notified when the help events are generated for the control.
void	removeKeyListener(org.eclipse.swt.events.KeyListener listener)           Removes the listener from the collection of listeners who will be notified when keys are pressed and released on the system keyboard.
void	removeMouseListener(org.eclipse.swt.events.MouseListener listener)           Removes the listener from the collection of listeners who will be notified when mouse buttons are pressed and released.
void	removeMouseMoveListener(org.eclipse.swt.events.MouseMoveListener listener)           Removes the listener from the collection of listeners who will be notified when the mouse moves.
void	removeMouseTrackListener(org.eclipse.swt.events.MouseTrackListener listener)           Removes the listener from the collection of listeners who will be notified when the mouse passes or hovers over controls.
void	removePaintListener(org.eclipse.swt.events.PaintListener listener)           Removes the listener from the collection of listeners who will be notified when the receiver needs to be painted.
void	removeTraverseListener(org.eclipse.swt.events.TraverseListener listener)           Removes the listener from the collection of listeners who will be notified when traversal events occur.
(package private)  void	resizeHandle(int width, int height)
(package private)  void	sendFocusEvent(int type)
(package private)  boolean	sendHelpEvent(long helpType)
(package private)  char[]	sendIMKeyEvent(int type, org.eclipse.swt.internal.gtk.GdkEventKey keyEvent, char[] chars)
(package private)  boolean	sendKeyEvent(int type, org.eclipse.swt.internal.gtk.GdkEventKey keyEvent)
(package private)  void	sendMouseEvent(int type, int button, long eventPtr)
void	setBackground(org.eclipse.swt.graphics.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.
(package private)  void	setBackgroundColor(org.eclipse.swt.internal.gtk.GdkColor color)
(package private)  void	setBackgroundColor(long handle, org.eclipse.swt.internal.gtk.GdkColor color)
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.
(package private)  boolean	setBounds(int x, int y, int width, int height, boolean move, boolean resize)
void	setBounds(org.eclipse.swt.graphics.Rectangle rect)           Sets the receiver's size and location to the rectangular area specified by the argument.
void	setCapture(boolean capture)           If the argument is true, causes the receiver to have all mouse events delivered to it until the method is called with false as the argument.
void	setCursor(org.eclipse.swt.graphics.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.
(package private)  void	setCursor(long cursor)
void	setEnabled(boolean enabled)           Enables the receiver if the argument is true, and disables it otherwise.
boolean	setFocus()           Causes the receiver to have the keyboard focus, such that all keyboard events will be delivered to it.
void	setFont(org.eclipse.swt.graphics.Font font)           Sets the font that the receiver will use to paint textual information to the font specified by the argument, or to the default font for that kind of control if the argument is null.
(package private)  void	setFontDescription(long font)
void	setForeground(org.eclipse.swt.graphics.Color color)           Sets the receiver's foreground color to the color specified by the argument, or to the default system color for the control if the argument is null.
(package private)  void	setForegroundColor(org.eclipse.swt.internal.gtk.GdkColor color)
(package private)  void	setInitialSize()
void	setLayoutData(java.lang.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	setLocation(org.eclipse.swt.graphics.Point location)           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	setMenu(Menu menu)           Sets the receiver's pop up menu to the argument.
boolean	setParent(Composite parent)           Changes the parent of the widget to be the one provided if the underlying operating system supports this feature.
(package private)  boolean	setRadioSelection(boolean value)
void	setRedraw(boolean redraw)           If the argument is false, causes subsequent drawing operations in the receiver to be ignored.
void	setSize(int width, int height)           Sets the receiver's size to the point specified by the arguments.
void	setSize(org.eclipse.swt.graphics.Point size)           Sets the receiver's size to the point specified by the argument.
(package private)  boolean	setTabGroupFocus(boolean next)
(package private)  boolean	setTabItemFocus(boolean next)
void	setToolTipText(java.lang.String string)           Sets the receiver's tool tip text to the argument, which may be null indicating that no tool tip text should be shown.
void	setVisible(boolean visible)           Marks the receiver as visible if the argument is true, and marks it invisible otherwise.
(package private)  void	setZOrder(Control sibling, boolean above)
(package private)  void	setZOrder(Control sibling, boolean above, boolean fixChildren)
(package private)  boolean	showMenu(int x, int y)
(package private)  void	sort(int[] items)
org.eclipse.swt.graphics.Point	toControl(int x, int y)           Returns a point which is the result of converting the argument, which is specified in display relative coordinates, to coordinates relative to the receiver.
org.eclipse.swt.graphics.Point	toControl(org.eclipse.swt.graphics.Point point)           Returns a point which is the result of converting the argument, which is specified in display relative coordinates, to coordinates relative to the receiver.
org.eclipse.swt.graphics.Point	toDisplay(int x, int y)           Returns a point which is the result of converting the argument, which is specified in coordinates relative to the receiver, to display relative coordinates.
org.eclipse.swt.graphics.Point	toDisplay(org.eclipse.swt.graphics.Point point)           Returns a point which is the result of converting the argument, which is specified in coordinates relative to the receiver, to display relative coordinates.
(package private)  long	topHandle()
(package private)  boolean	translateMnemonic(Event event, Control control)
(package private)  boolean	translateMnemonic(int keyval, org.eclipse.swt.internal.gtk.GdkEventKey gdkEvent)
(package private)  boolean	translateTraversal(org.eclipse.swt.internal.gtk.GdkEventKey keyEvent)
(package private)  int	traversalCode(int key, org.eclipse.swt.internal.gtk.GdkEventKey event)
(package private)  boolean	traverse(Event event)
boolean	traverse(int traversal)           Based on the argument, perform one of the expected platform traversal action.
(package private)  boolean	traverseEscape()
(package private)  boolean	traverseGroup(boolean next)
(package private)  boolean	traverseItem(boolean next)
(package private)  boolean	traverseMnemonic(char key)
(package private)  boolean	traversePage(boolean next)
(package private)  boolean	traverseReturn()
void	update()           Forces all outstanding paint requests for the widget to be processed before this method returns.
(package private)  void	update(boolean all)

 

Methods inherited from class org.eclipse.swt.widgets.Widget

addDisposeListener, addListener, checkBits, checkOrientation, checkParent, checkSubclass, checkWidget, createHandle, destroyWidget, dispose, error, filterProc, filters, fixMnemonic, fontHeight, getData, getData, getDisplay, getName, getNameText, getStyle, gtk_activate, gtk_changed, gtk_clicked, gtk_configure_event, gtk_delete_event, gtk_delete_range, gtk_delete_text, gtk_event, gtk_hide, gtk_insert_text, gtk_map_event, gtk_row_activated, gtk_scroll_child, gtk_select, gtk_show, gtk_size_allocate, gtk_style_set, gtk_switch_page, gtk_test_collapse_row, gtk_test_expand_row, gtk_timer, gtk_toggled, gtk_unmap_event, gtk_value_changed, gtk_window_state_event, hooks, isDisposed, isListening, isValidSubclass, isValidThread, isValidWidget, menuPositionProc, mnemonicHit, mnemonicMatch, notifyListeners, pixbufCellDataProc, postEvent, postEvent, releaseResources, removeDisposeListener, removeListener, removeListener, sendEvent, sendEvent, sendEvent, sendEvent, setData, setData, setInputState, setKeyState, setOrientation, shellMapProc, textCellDataProc, timerProc, toString, translateTraversal, treeSelectionProc, windowProc, windowProc, windowProc, windowProc

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

fixedHandle

long fixedHandle

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redrawWindow

long redrawWindow

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enableWindow

long enableWindow

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drawCount

int drawCount

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parent

Composite parent

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cursor

org.eclipse.swt.graphics.Cursor cursor

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menu

Menu menu

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font

org.eclipse.swt.graphics.Font font

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toolTipText

java.lang.String toolTipText

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layoutData

java.lang.Object layoutData

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accessible

org.eclipse.swt.accessibility.Accessible accessible

Constructor Detail

Control

Control()

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Control

public Control(Composite parent,
               int style)

Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

The style value is either one of the style constants defined in class SWT which is applicable to instances of this class, or must be built by bitwise OR'ing together (that is, using the int "|" operator) two or more of those SWT style constants. The class description lists the style constants that are applicable to the class. Style bits are also inherited from superclasses.

Method Detail

defaultFont

long defaultFont()

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deregister

void deregister()

Overrides:

deregister in class Widget

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drawGripper

boolean drawGripper(int x,
                    int y,
                    int width,
                    int height)

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enableWidget

void enableWidget(boolean enabled)

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eventHandle

long eventHandle()

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fixFocus

void fixFocus(Control focusControl)

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focusHandle

long focusHandle()

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fontHandle

long fontHandle()

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hasFocus

boolean hasFocus()

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hookEvents

void hookEvents()

Overrides:

hookEvents in class Widget

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hoverProc

long hoverProc(long widget)

Overrides:

hoverProc in class Widget

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topHandle

long topHandle()

Overrides:

topHandle in class Widget

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paintHandle

long paintHandle()

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paintWindow

long paintWindow()

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computeSize

public org.eclipse.swt.graphics.Point computeSize(int wHint,
                                                  int hHint)

Returns the preferred size of the receiver.

The preferred size of a control is the size that it would best be displayed at. The width hint and height hint arguments allow the caller to ask a control questions such as "Given a particular width, how high does the control need to be to show all of the contents?" To indicate that the caller does not wish to constrain a particular dimension, the constant SWT.DEFAULT is passed for the hint.

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computeTabGroup

Control computeTabGroup()

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computeTabList

Control[] computeTabList()

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computeTabRoot

Control computeTabRoot()

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createWidget

void createWidget(int index)

Overrides:

createWidget in class Widget

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computeSize

public org.eclipse.swt.graphics.Point computeSize(int wHint,
                                                  int hHint,
                                                  boolean changed)

Returns the preferred size of the receiver.

The preferred size of a control is the size that it would best be displayed at. The width hint and height hint arguments allow the caller to ask a control questions such as "Given a particular width, how high does the control need to be to show all of the contents?" To indicate that the caller does not wish to constrain a particular dimension, the constant SWT.DEFAULT is passed for the hint.

If the changed flag is true, it indicates that the receiver's contents have changed, therefore any caches that a layout manager containing the control may have been keeping need to be flushed. When the control is resized, the changed flag will be false, so layout manager caches can be retained.

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computeNativeSize

org.eclipse.swt.graphics.Point computeNativeSize(long h,
                                                 int wHint,
                                                 int hHint,
                                                 boolean changed)

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getAccessible

public org.eclipse.swt.accessibility.Accessible getAccessible()

Returns the accessible object for the receiver. If this is the first time this object is requested, then the object is created and returned.

Since:

2.0

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getBounds

public org.eclipse.swt.graphics.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. In this case, the location is relative to the display.

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setBounds

public void setBounds(org.eclipse.swt.graphics.Rectangle rect)

Sets the receiver's size and location to the rectangular area specified by the argument. The x and y fields of the rectangle are relative to the receiver's parent (or its display if its parent is null).

Note: Attempting to set the width or height of the receiver to a negative number will cause that value to be set to zero instead.

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setBounds

public 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. The x and y arguments are relative to the receiver's parent (or its display if its parent is null), unless the receiver is a shell. In this case, the x and y arguments are relative to the display.

Note: Attempting to set the width or height of the receiver to a negative number will cause that value to be set to zero instead.

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moveHandle

void moveHandle(int x,
                int y)

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resizeHandle

void resizeHandle(int width,
                  int height)

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setBounds

boolean setBounds(int x,
                  int y,
                  int width,
                  int height,
                  boolean move,
                  boolean resize)

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getLocation

public org.eclipse.swt.graphics.Point getLocation()

Returns a point describing the receiver's location relative to its parent (or its display if its parent is null), unless the receiver is a shell. In this case, the point is relative to the display.

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setLocation

public void setLocation(org.eclipse.swt.graphics.Point location)

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. In this case, the point is relative to the display.

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setLocation

public 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. In this case, the point is relative to the display.

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getSize

public org.eclipse.swt.graphics.Point getSize()

Returns a point describing the receiver's size. The x coordinate of the result is the width of the receiver. The y coordinate of the result is the height of the receiver.

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setSize

public void setSize(org.eclipse.swt.graphics.Point size)

Sets the receiver's size to the point specified by the argument.

Note: Attempting to set the width or height of the receiver to a negative number will cause them to be set to zero instead.

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setSize

public void setSize(int width,
                    int height)

Sets the receiver's size to the point specified by the arguments.

Note: Attempting to set the width or height of the receiver to a negative number will cause that value to be set to zero instead.

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moveAbove

public void moveAbove(Control control)

Moves the receiver above the specified control in the drawing order. If the argument is null, then the receiver is moved to the top of the drawing order. The control at the top of the drawing order will not be covered by other controls even if they occupy intersecting areas.

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moveBelow

public void moveBelow(Control control)

Moves the receiver below the specified control in the drawing order. If the argument is null, then the receiver is moved to the bottom of the drawing order. The control at the bottom of the drawing order will be covered by all other controls which occupy intersecting areas.

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pack

public void pack()

Causes the receiver to be resized to its preferred size. For a composite, this involves computing the preferred size from its layout, if there is one.

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pack

public void pack(boolean changed)

Causes the receiver to be resized to its preferred size. For a composite, this involves computing the preferred size from its layout, if there is one.

If the changed flag is true, it indicates that the receiver's contents have changed, therefore any caches that a layout manager containing the control may have been keeping need to be flushed. When the control is resized, the changed flag will be false, so layout manager caches can be retained.

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setLayoutData

public void setLayoutData(java.lang.Object layoutData)

Sets the layout data associated with the receiver to the argument.

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toControl

public org.eclipse.swt.graphics.Point toControl(int x,
                                                int y)

Returns a point which is the result of converting the argument, which is specified in display relative coordinates, to coordinates relative to the receiver.

Since:

2.1

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toControl

public org.eclipse.swt.graphics.Point toControl(org.eclipse.swt.graphics.Point point)

Returns a point which is the result of converting the argument, which is specified in display relative coordinates, to coordinates relative to the receiver.

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toDisplay

public org.eclipse.swt.graphics.Point toDisplay(int x,
                                                int y)

Returns a point which is the result of converting the argument, which is specified in coordinates relative to the receiver, to display relative coordinates.

Since:

2.1

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toDisplay

public org.eclipse.swt.graphics.Point toDisplay(org.eclipse.swt.graphics.Point point)

Returns a point which is the result of converting the argument, which is specified in coordinates relative to the receiver, to display relative coordinates.

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addControlListener

public void addControlListener(org.eclipse.swt.events.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.

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addFocusListener

public void addFocusListener(org.eclipse.swt.events.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.

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addHelpListener

public void addHelpListener(org.eclipse.swt.events.HelpListener listener)

Adds the listener to the collection of listeners who will be notified when help events are generated for the control, by sending it one of the messages defined in the HelpListener interface.

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addKeyListener

public void addKeyListener(org.eclipse.swt.events.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.

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addMouseListener

public void addMouseListener(org.eclipse.swt.events.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.

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addMouseMoveListener

public void addMouseMoveListener(org.eclipse.swt.events.MouseMoveListener listener)

Adds the listener to the collection of listeners who will be notified when the mouse moves, by sending it one of the messages defined in the MouseMoveListener interface.

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addMouseTrackListener

public void addMouseTrackListener(org.eclipse.swt.events.MouseTrackListener listener)

Adds the listener to the collection of listeners who will be notified when the mouse passes or hovers over controls, by sending it one of the messages defined in the MouseTrackListener interface.

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addPaintListener

public void addPaintListener(org.eclipse.swt.events.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.

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addTraverseListener

public void addTraverseListener(org.eclipse.swt.events.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.

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removeControlListener

public void removeControlListener(org.eclipse.swt.events.ControlListener listener)

Removes the listener from the collection of listeners who will be notified when the control is moved or resized.

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removeFocusListener

public void removeFocusListener(org.eclipse.swt.events.FocusListener listener)

Removes the listener from the collection of listeners who will be notified when the control gains or loses focus.

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removeHelpListener

public void removeHelpListener(org.eclipse.swt.events.HelpListener listener)

Removes the listener from the collection of listeners who will be notified when the help events are generated for the control.

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removeKeyListener

public void removeKeyListener(org.eclipse.swt.events.KeyListener listener)

Removes the listener from the collection of listeners who will be notified when keys are pressed and released on the system keyboard.

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removeMouseListener

public void removeMouseListener(org.eclipse.swt.events.MouseListener listener)

Removes the listener from the collection of listeners who will be notified when mouse buttons are pressed and released.

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removeMouseMoveListener

public void removeMouseMoveListener(org.eclipse.swt.events.MouseMoveListener listener)

Removes the listener from the collection of listeners who will be notified when the mouse moves.

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removeMouseTrackListener

public void removeMouseTrackListener(org.eclipse.swt.events.MouseTrackListener listener)

Removes the listener from the collection of listeners who will be notified when the mouse passes or hovers over controls.

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removePaintListener

public void removePaintListener(org.eclipse.swt.events.PaintListener listener)

Removes the listener from the collection of listeners who will be notified when the receiver needs to be painted.

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removeTraverseListener

public void removeTraverseListener(org.eclipse.swt.events.TraverseListener listener)

Removes the listener from the collection of listeners who will be notified when traversal events occur.

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filterKey

boolean filterKey(int keyval,
                  long event)

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findMenus

Menu[] findMenus(Control control)

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fixChildren

void fixChildren(Shell newShell,
                 Shell oldShell,
                 Decorations newDecorations,
                 Decorations oldDecorations,
                 Menu[] menus)

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forceFocus

public boolean forceFocus()

Forces the receiver to have the keyboard focus, causing all keyboard events to be delivered to it.

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forceFocus

boolean forceFocus(long focusHandle)

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getBackground

public org.eclipse.swt.graphics.Color getBackground()

Returns the receiver's background color.

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getBackgroundColor

org.eclipse.swt.internal.gtk.GdkColor getBackgroundColor()

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getBgColor

org.eclipse.swt.internal.gtk.GdkColor getBgColor()

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getBaseColor

org.eclipse.swt.internal.gtk.GdkColor getBaseColor()

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getBorderWidth

public int getBorderWidth()

Returns the receiver's border width.

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getEnabled

public boolean getEnabled()

Returns true if the receiver is enabled, and false otherwise. A disabled control is typically not selectable from the user interface and draws with an inactive or "grayed" look.

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getFont

public org.eclipse.swt.graphics.Font getFont()

Returns the font that the receiver will use to paint textual information.

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getFontDescription

long getFontDescription()

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getForeground

public org.eclipse.swt.graphics.Color getForeground()

Returns the foreground color that the receiver will use to draw.

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getForegroundColor

org.eclipse.swt.internal.gtk.GdkColor getForegroundColor()

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getFgColor

org.eclipse.swt.internal.gtk.GdkColor getFgColor()

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getIMCaretPos

org.eclipse.swt.graphics.Point getIMCaretPos()

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getTextColor

org.eclipse.swt.internal.gtk.GdkColor getTextColor()

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getLayoutData

public java.lang.Object getLayoutData()

Returns layout data which is associated with the receiver.

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getMenu

public Menu getMenu()

Returns the receiver's pop up menu if it has one, or null if it does not. All controls may optionally have a pop up menu that is displayed when the user requests one for the control. The sequence of key strokes, button presses and/or button releases that are used to request a pop up menu is platform specific.

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getMonitor

public Monitor getMonitor()

Returns the receiver's monitor.

Since:

3.0

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getParent

public Composite getParent()

Returns the receiver's parent, which must be a Composite or null when the receiver is a shell that was created with null or a display for a parent.

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getPath

Control[] getPath()

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getShell

public Shell getShell()

Returns the receiver's shell. For all controls other than shells, this simply returns the control's nearest ancestor shell. Shells return themselves, even if they are children of other shells.

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_getShell

Shell _getShell()

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getToolTipText

public java.lang.String getToolTipText()

Returns the receiver's tool tip text, or null if it has not been set.

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getVisible

public boolean getVisible()

Returns true if the receiver is visible, and false otherwise.

If one of the receiver's ancestors is not visible or some other condition makes the receiver not visible, this method may still indicate that it is considered visible even though it may not actually be showing.

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gtk_button_press_event

long gtk_button_press_event(long widget,
                            long event)

Overrides:

gtk_button_press_event in class Widget

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gtk_button_release_event

long gtk_button_release_event(long widget,
                              long event)

Overrides:

gtk_button_release_event in class Widget

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gtk_commit

long gtk_commit(long imcontext,
                long text)

Overrides:

gtk_commit in class Widget

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gtk_enter_notify_event

long gtk_enter_notify_event(long widget,
                            long event)

Overrides:

gtk_enter_notify_event in class Widget

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gtk_event_after

long gtk_event_after(long widget,
                     long gdkEvent)

Overrides:

gtk_event_after in class Widget

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gtk_expose_event

long gtk_expose_event(long widget,
                      long eventPtr)

Overrides:

gtk_expose_event in class Widget

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gtk_focus

long gtk_focus(long widget,
               long directionType)

Overrides:

gtk_focus in class Widget

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gtk_focus_in_event

long gtk_focus_in_event(long widget,
                        long event)

Overrides:

gtk_focus_in_event in class Widget

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gtk_focus_out_event

long gtk_focus_out_event(long widget,
                         long event)

Overrides:

gtk_focus_out_event in class Widget

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gtk_key_press_event

long gtk_key_press_event(long widget,
                         long event)

Overrides:

gtk_key_press_event in class Widget

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gtk_key_release_event

long gtk_key_release_event(long widget,
                           long event)

Overrides:

gtk_key_release_event in class Widget

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gtk_leave_notify_event

long gtk_leave_notify_event(long widget,
                            long event)

Overrides:

gtk_leave_notify_event in class Widget

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gtk_mnemonic_activate

long gtk_mnemonic_activate(long widget,
                           long arg1)

Overrides:

gtk_mnemonic_activate in class Widget

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gtk_motion_notify_event

long gtk_motion_notify_event(long widget,
                             long event)

Overrides:

gtk_motion_notify_event in class Widget

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gtk_popup_menu

long gtk_popup_menu(long widget)

Overrides:

gtk_popup_menu in class Widget

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gtk_preedit_changed

long gtk_preedit_changed(long imcontext)

Overrides:

gtk_preedit_changed in class Widget

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gtk_realize

long gtk_realize(long widget)

Overrides:

gtk_realize in class Widget

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gtk_show_help

long gtk_show_help(long widget,
                   long helpType)

Overrides:

gtk_show_help in class Widget

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gtk_unrealize

long gtk_unrealize(long widget)

Overrides:

gtk_unrealize in class Widget

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gtk_visibility_notify_event

long gtk_visibility_notify_event(long widget,
                                 long event)

Overrides:

gtk_visibility_notify_event in class Widget

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internal_new_GC

public long internal_new_GC(org.eclipse.swt.graphics.GCData data)

Invokes platform specific functionality to allocate a new GC handle.

IMPORTANT: This method is not part of the public API for Control. It is marked public only so that it can be shared within the packages provided by SWT. It is not available on all platforms, and should never be called from application code.

Specified by:

internal_new_GC in interface org.eclipse.swt.graphics.Drawable

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imHandle

long imHandle()

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internal_dispose_GC

public void internal_dispose_GC(long gdkGC,
                                org.eclipse.swt.graphics.GCData data)

Invokes platform specific functionality to dispose a GC handle.

IMPORTANT: This method is not part of the public API for Control. It is marked public only so that it can be shared within the packages provided by SWT. It is not available on all platforms, and should never be called from application code.

Specified by:

internal_dispose_GC in interface org.eclipse.swt.graphics.Drawable

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isReparentable

public boolean isReparentable()

Returns true if the underlying operating system supports this reparenting, otherwise false

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isShowing

boolean isShowing()

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isTabGroup

boolean isTabGroup()

---

isTabItem

boolean isTabItem()

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isEnabled

public boolean isEnabled()

Returns true if the receiver is enabled and all of the receiver's ancestors are enabled, and false otherwise. A disabled control is typically not selectable from the user interface and draws with an inactive or "grayed" look.

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isFocusAncestor

boolean isFocusAncestor(Control control)

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isFocusControl

public boolean isFocusControl()

Returns true if the receiver has the user-interface focus, and false otherwise.

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isVisible

public boolean isVisible()

Returns true if the receiver is visible and all of the receiver's ancestors are visible and false otherwise.

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menuShell

Decorations menuShell()

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mnemonicHit

boolean mnemonicHit(char key)

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mnemonicMatch

boolean mnemonicMatch(char key)

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register

void register()

Overrides:

register in class Widget

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redraw

public void redraw()

Causes the entire bounds of the receiver to be marked as needing to be redrawn. The next time a paint request is processed, the control will be completely painted, including the background.

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redraw

public 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. The next time a paint request is processed, that area of the receiver will be painted, including the background. If the all flag is true, any children of the receiver which intersect with the specified area will also paint their intersecting areas. If the all flag is false, the children will not be painted.

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redrawWidget

void redrawWidget(int x,
                  int y,
                  int width,
                  int height,
                  boolean all)

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releaseChild

void releaseChild()

Overrides:

releaseChild in class Widget

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releaseHandle

void releaseHandle()

Overrides:

releaseHandle in class Widget

---

releaseWidget

void releaseWidget()

Overrides:

releaseWidget in class Widget

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sendFocusEvent

void sendFocusEvent(int type)

---

sendHelpEvent

boolean sendHelpEvent(long helpType)

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sendIMKeyEvent

char[] sendIMKeyEvent(int type,
                      org.eclipse.swt.internal.gtk.GdkEventKey keyEvent,
                      char[] chars)

---

sendKeyEvent

boolean sendKeyEvent(int type,
                     org.eclipse.swt.internal.gtk.GdkEventKey keyEvent)

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sendMouseEvent

void sendMouseEvent(int type,
                    int button,
                    long eventPtr)

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setBackground

public void setBackground(org.eclipse.swt.graphics.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.

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setBackgroundColor

void setBackgroundColor(long handle,
                        org.eclipse.swt.internal.gtk.GdkColor color)

---

setBackgroundColor

void setBackgroundColor(org.eclipse.swt.internal.gtk.GdkColor color)

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setCapture

public void setCapture(boolean capture)

If the argument is true, causes the receiver to have all mouse events delivered to it until the method is called with false as the argument.

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setCursor

public void setCursor(org.eclipse.swt.graphics.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.

When the mouse pointer passes over a control its appearance is changed to match the control's cursor.

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setCursor

void setCursor(long cursor)

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setEnabled

public void setEnabled(boolean enabled)

Enables the receiver if the argument is true, and disables it otherwise. A disabled control is typically not selectable from the user interface and draws with an inactive or "grayed" look.

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setFocus

public boolean setFocus()

Causes the receiver to have the keyboard focus, such that all keyboard events will be delivered to it. Focus reassignment will respect applicable platform constraints.

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setFont

public void setFont(org.eclipse.swt.graphics.Font font)

Sets the font that the receiver will use to paint textual information to the font specified by the argument, or to the default font for that kind of control if the argument is null.

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setFontDescription

void setFontDescription(long font)

---

setForeground

public void setForeground(org.eclipse.swt.graphics.Color color)

Sets the receiver's foreground color to the color specified by the argument, or to the default system color for the control if the argument is null.

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setForegroundColor

void setForegroundColor(org.eclipse.swt.internal.gtk.GdkColor color)

---

setInitialSize

void setInitialSize()

---

setMenu

public void setMenu(Menu menu)

Sets the receiver's pop up menu to the argument. All controls may optionally have a pop up menu that is displayed when the user requests one for the control. The sequence of key strokes, button presses and/or button releases that are used to request a pop up menu is platform specific.

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setParent

public boolean setParent(Composite parent)

Changes the parent of the widget to be the one provided if the underlying operating system supports this feature. Answers true if the parent is successfully changed.

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setRadioSelection

boolean setRadioSelection(boolean value)

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setRedraw

public void setRedraw(boolean redraw)

If the argument is false, causes subsequent drawing operations in the receiver to be ignored. No drawing of any kind can occur in the receiver until the flag is set to true. Graphics operations that occurred while the flag was false are lost. When the flag is set to true, the entire widget is marked as needing to be redrawn.

Note: This operation is a hint and may not be supported on some platforms or for some widgets.

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setTabGroupFocus

boolean setTabGroupFocus(boolean next)

---

setTabItemFocus

boolean setTabItemFocus(boolean next)

---

setToolTipText

public void setToolTipText(java.lang.String string)

Sets the receiver's tool tip text to the argument, which may be null indicating that no tool tip text should be shown.

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setVisible

public void setVisible(boolean visible)

Marks the receiver as visible if the argument is true, and marks it invisible otherwise.

If one of the receiver's ancestors is not visible or some other condition makes the receiver not visible, marking it visible may not actually cause it to be displayed.

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setZOrder

void setZOrder(Control sibling,
               boolean above)

---

setZOrder

void setZOrder(Control sibling,
               boolean above,
               boolean fixChildren)

---

showMenu

boolean showMenu(int x,
                 int y)

---

sort

void sort(int[] items)

---

traverse

public boolean traverse(int traversal)

Based on the argument, perform one of the expected platform traversal action. The argument should be one of the constants: SWT.TRAVERSE_ESCAPE, SWT.TRAVERSE_RETURN, SWT.TRAVERSE_TAB_NEXT, SWT.TRAVERSE_TAB_PREVIOUS, SWT.TRAVERSE_ARROW_NEXT and SWT.TRAVERSE_ARROW_PREVIOUS.

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translateMnemonic

boolean translateMnemonic(Event event,
                          Control control)

---

translateMnemonic

boolean translateMnemonic(int keyval,
                          org.eclipse.swt.internal.gtk.GdkEventKey gdkEvent)

---

translateTraversal

boolean translateTraversal(org.eclipse.swt.internal.gtk.GdkEventKey keyEvent)

---

traversalCode

int traversalCode(int key,
                  org.eclipse.swt.internal.gtk.GdkEventKey event)

---

traverse

boolean traverse(Event event)

---

traverseEscape

boolean traverseEscape()

---

traverseGroup

boolean traverseGroup(boolean next)

---

traverseItem

boolean traverseItem(boolean next)

---

traverseReturn

boolean traverseReturn()

---

traversePage

boolean traversePage(boolean next)

---

traverseMnemonic

boolean traverseMnemonic(char key)

---

update

public void update()

Forces all outstanding paint requests for the widget to be processed before this method returns.

---

update

void update(boolean all)

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