Class FlatButton

java.lang.Object
org.eclipse.swt.widgets.Widget
org.eclipse.swt.widgets.Control
org.eclipse.swt.widgets.Scrollable
org.eclipse.swt.widgets.Composite
org.eclipse.swt.widgets.Canvas
org.eclipse.nebula.widgets.opal.preferencewindow.FlatButton
All Implemented Interfaces:
org.eclipse.swt.graphics.Drawable

class FlatButton
extends org.eclipse.swt.widgets.Canvas
Instances of this class represent a flat button.
Styles:
UP, DOWN, LEFT, RIGHT, CENTER
Events:
Selection

Note: Only one of the styles LEFT, RIGHT, and CENTER may be specified.

  • Field Summary

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

    handle
  • Constructor Summary

    Constructors 
    Constructor Description
    FlatButton​(org.eclipse.swt.widgets.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

    Modifier and Type Method Description
    void addListener​(int eventType, org.eclipse.swt.widgets.Listener listener)  
    void addSelectionListener​(org.eclipse.swt.events.SelectionListener listener)
    Adds the listener to the collection of listeners who will be notified when the control is selected by the user, by sending it one of the messages defined in the SelectionListener interface.
    org.eclipse.swt.graphics.Point computeSize​(int wHint, int hHint, boolean changed)  
    int getAlignment()
    Returns a value which describes the position of the text in the receiver.
    org.eclipse.swt.graphics.Color getBackgroundColor()
    Returns a value which describes the default background color
    org.eclipse.swt.graphics.Image getImage()
    Returns the receiver's image if it has one, or null if it does not.
    org.eclipse.swt.graphics.Color getMouseOverColor()
    Returns a value which describes the color when the mouse is over the button
    org.eclipse.swt.graphics.Color getSelectedColor()
    Returns a value which describes the color when the button is selected
    org.eclipse.swt.graphics.Color getSelectedTextColor()
    Returns a value which describes the color of the text when the button is selected
    boolean getSelection()
    Returns true if the receiver is selected, and false otherwise.
    java.lang.String getText()
    Returns the receiver's text.
    void removeSelectionListener​(org.eclipse.swt.events.SelectionListener listener)
    Removes the listener from the collection of listeners who will be notified when the control is selected by the user.
    void setAlignment​(int alignment)
    Controls how text, images and arrows will be displayed in the receiver.
    void setBackgroundColor​(org.eclipse.swt.graphics.Color backgroundColor)
    Sets the receiver's background color to the color specified by the argument.
    void setImage​(org.eclipse.swt.graphics.Image image)
    Sets the receiver's image to the argument, which may be null indicating that no image should be displayed.
    void setMouseOverColor​(org.eclipse.swt.graphics.Color mouseOverColor)
    Sets the receiver's color when the mouse if over the button.
    void setSelectedColor​(org.eclipse.swt.graphics.Color selectedColor)
    Sets the receiver's color when the button is selected.
    void setSelectedTextColor​(org.eclipse.swt.graphics.Color selectedTextColor)
    Sets the receiver's text color when the button is selected.
    void setSelection​(boolean selected)
    Sets the selection state of the receiver.
    void setText​(java.lang.String text)
    Sets the receiver's text.

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

    drawBackground, getCaret, getIME, scroll, setCaret, setFont, setIME

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

    changed, checkSubclass, drawBackground, getBackgroundMode, getChildren, getLayout, getLayoutDeferred, getTabList, isLayoutDeferred, layout, layout, layout, layout, layout, setBackgroundMode, setFocus, setLayout, setLayoutDeferred, setTabList, toString

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

    computeTrim, getClientArea, getHorizontalBar, getScrollbarsMode, getVerticalBar

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

    addControlListener, addDragDetectListener, addFocusListener, addGestureListener, addHelpListener, addKeyListener, addMenuDetectListener, addMouseListener, addMouseMoveListener, addMouseTrackListener, addMouseWheelListener, addPaintListener, addTouchListener, addTraverseListener, computeSize, dragDetect, dragDetect, forceFocus, getAccessible, getBackground, getBackgroundImage, getBorderWidth, getBounds, getCursor, getDragDetect, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getOrientation, getParent, getRegion, getShell, getSize, getTextDirection, getToolTipText, getTouchEnabled, getVisible, internal_dispose_GC, internal_new_GC, isEnabled, isFocusControl, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, print, redraw, redraw, removeControlListener, removeDragDetectListener, removeFocusListener, removeGestureListener, removeHelpListener, removeKeyListener, removeMenuDetectListener, removeMouseListener, removeMouseMoveListener, removeMouseTrackListener, removeMouseWheelListener, removePaintListener, removeTouchListener, removeTraverseListener, requestLayout, setBackground, setBackgroundImage, setBounds, setBounds, setCapture, setCursor, setDragDetect, setEnabled, setForeground, setLayoutData, setLocation, setLocation, setMenu, setOrientation, setParent, setRedraw, setRegion, setSize, setSize, setTextDirection, setToolTipText, setTouchEnabled, setVisible, toControl, toControl, toDisplay, toDisplay, traverse, traverse, traverse, update

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

    addDisposeListener, checkWidget, dispose, getData, getData, getDisplay, getListeners, getStyle, isAutoDirection, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, reskin, setData, setData

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface org.eclipse.swt.graphics.Drawable

    isAutoScalable
  • Constructor Details

    • FlatButton

      public FlatButton​(org.eclipse.swt.widgets.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.

      Parameters:
      parent - a composite control which will be the parent of the new instance (cannot be null)
      style - the style of control to construct
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_NULL_ARGUMENT - if the parent is null
      org.eclipse.swt.SWTException -
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
      • ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
      See Also:
      SWT.DOWN, SWT.LEFT, SWT.RIGHT, SWT.CENTER
  • Method Details

    • addSelectionListener

      public void addSelectionListener​(org.eclipse.swt.events.SelectionListener listener)
      Adds the listener to the collection of listeners who will be notified when the control is selected by the user, by sending it one of the messages defined in the SelectionListener interface.

      widgetSelected is called when the control is selected by the user. widgetDefaultSelected is not called.

      Parameters:
      listener - the listener which should be notified
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_NULL_ARGUMENT - if the listener is null
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
      See Also:
      SelectionListener, removeSelectionListener(org.eclipse.swt.events.SelectionListener), SelectionEvent
    • computeSize

      public org.eclipse.swt.graphics.Point computeSize​(int wHint, int hHint, boolean changed)
      Overrides:
      computeSize in class org.eclipse.swt.widgets.Control
      See Also:
      Control.computeSize(int, int, boolean)
    • getAlignment

      public int getAlignment()
      Returns a value which describes the position of the text in the receiver. The value will be one of LEFT, RIGHT or CENTER.
      Returns:
      the alignment
      Throws:
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • getBackgroundColor

      public org.eclipse.swt.graphics.Color getBackgroundColor()
      Returns a value which describes the default background color
      Returns:
      the default background color
      Throws:
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • getImage

      public org.eclipse.swt.graphics.Image getImage()
      Returns the receiver's image if it has one, or null if it does not.
      Returns:
      the receiver's image
      Throws:
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • getMouseOverColor

      public org.eclipse.swt.graphics.Color getMouseOverColor()
      Returns a value which describes the color when the mouse is over the button
      Returns:
      the color when the mouse is over the button
      Throws:
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • getSelectedColor

      public org.eclipse.swt.graphics.Color getSelectedColor()
      Returns a value which describes the color when the button is selected
      Returns:
      the color when the button is selected
      Throws:
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • getSelectedTextColor

      public org.eclipse.swt.graphics.Color getSelectedTextColor()
      Returns a value which describes the color of the text when the button is selected
      Returns:
      the color of the text when the button is selected
      Throws:
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • getSelection

      public boolean getSelection()
      Returns true if the receiver is selected, and false otherwise.

      Returns:
      the selection state
      Throws:
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • getText

      public java.lang.String getText()
      Returns the receiver's text.
      Returns:
      the receiver's text
      Throws:
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • removeSelectionListener

      public void removeSelectionListener​(org.eclipse.swt.events.SelectionListener listener)
      Removes the listener from the collection of listeners who will be notified when the control is selected by the user.
      Parameters:
      listener - the listener which should no longer be notified
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_NULL_ARGUMENT - if the listener is null
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
      See Also:
      SelectionListener, addSelectionListener(org.eclipse.swt.events.SelectionListener)
    • setAlignment

      public void setAlignment​(int alignment)
      Controls how text, images and arrows will be displayed in the receiver. The argument should be one of LEFT, RIGHT or CENTER.
      Parameters:
      alignment - the new alignment
      Throws:
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • setBackgroundColor

      public void setBackgroundColor​(org.eclipse.swt.graphics.Color backgroundColor)
      Sets the receiver's background color to the color specified by the argument.
      Parameters:
      color - the new color
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_INVALID_ARGUMENT - if the argument has been disposed
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • setImage

      public void setImage​(org.eclipse.swt.graphics.Image image)
      Sets the receiver's image to the argument, which may be null indicating that no image should be displayed.

      Note that a Button can display an image and text simultaneously on Windows (starting with XP), GTK+ and OSX. On other platforms, a Button that has an image and text set into it will display the image or text that was set most recently.

      Parameters:
      image - the image to display on the receiver (may be null)
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_INVALID_ARGUMENT - if the image has been disposed
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • setMouseOverColor

      public void setMouseOverColor​(org.eclipse.swt.graphics.Color mouseOverColor)
      Sets the receiver's color when the mouse if over the button.
      Parameters:
      color - the new color
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_INVALID_ARGUMENT - if the argument has been disposed
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • setSelectedColor

      public void setSelectedColor​(org.eclipse.swt.graphics.Color selectedColor)
      Sets the receiver's color when the button is selected.
      Parameters:
      color - the new color
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_INVALID_ARGUMENT - if the argument has been disposed
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • setSelectedTextColor

      public void setSelectedTextColor​(org.eclipse.swt.graphics.Color selectedTextColor)
      Sets the receiver's text color when the button is selected.
      Parameters:
      color - the new color
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_INVALID_ARGUMENT - if the argument has been disposed
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • setSelection

      public void setSelection​(boolean selected)
      Sets the selection state of the receiver.
      Parameters:
      selected - the new selection state
      Throws:
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • setText

      public void setText​(java.lang.String text)
      Sets the receiver's text.
      Parameters:
      string - the new text
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_NULL_ARGUMENT - if the text is null
      org.eclipse.swt.SWTException -
      • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
      • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
    • addListener

      public void addListener​(int eventType, org.eclipse.swt.widgets.Listener listener)
      Overrides:
      addListener in class org.eclipse.swt.widgets.Widget
      See Also:
      Widget.addListener(int, org.eclipse.swt.widgets.Listener)