Package org.eclipse.nebula.widgets.opal.breadcrumb

Class Breadcrumb

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.breadcrumb.Breadcrumb
All Implemented Interfaces:
org.eclipse.swt.graphics.Drawable
public class Breadcrumb
extends org.eclipse.swt.widgets.Canvas
Instances of this class support the layout of selectable bar items displayed in a bread crumb.

The item children that may be added to instances of this class must be of type BreadcrumbItem.

Styles:
BORDER
Events:
(none)

  • Field Summary

    Fields 
    Modifier and Type Field Description
    (package private) static org.eclipse.swt.graphics.Color BORDER_COLOR  
    (package private) static org.eclipse.swt.graphics.Color BORDER_COLOR_1  
    (package private) static org.eclipse.swt.graphics.Color BORDER_COLOR_2  
    (package private) static org.eclipse.swt.graphics.Color BORDER_COLOR_3  
    (package private) boolean hasBorder  

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

    handle

  • Constructor Summary

    Constructors 
    Constructor Description
    Breadcrumb​(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
    (package private) void addItem​(BreadcrumbItem item)
    Add an item to the toolbar
    org.eclipse.swt.graphics.Point computeSize​(int wHint, int hHint, boolean changed)  
    BreadcrumbItem getItem​(int index)
    Returns the item at the given, zero-relative index in the receiver.
    BreadcrumbItem getItem​(org.eclipse.swt.graphics.Point point)
    Returns the item at the given point in the receiver or null if no such item exists.
    int getItemCount()
    Returns the number of items contained in the receiver.
    BreadcrumbItem[] getItems()
    Returns an array of BreadcrumbItems which are the items in the receiver.
    int indexOf​(BreadcrumbItem item)
    Searches the receiver's list starting at the first item (index 0) until an item is found that is equal to the argument, and returns the index of that item.
    void removeItem​(BreadcrumbItem item)
    Remove an item to the toolbar

    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, addListener, 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

  • Field Details

  • Constructor Details

    • Breadcrumb

      public Breadcrumb​(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:
      Widget.getStyle()

  • Method Details

    • addItem

      void addItem​(BreadcrumbItem item)
      Add an item to the toolbar
      Parameters:
      item - roundedToolItem to add

    • 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)

    • getItem

      public BreadcrumbItem getItem​(int index)
      Returns the item at the given, zero-relative index in the receiver. Throws an exception if the index is out of range.
      Parameters:
      index - the index of the item to return
      Returns:
      the item at the given index
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)
      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

    • getItem

      public BreadcrumbItem getItem​(org.eclipse.swt.graphics.Point point)
      Returns the item at the given point in the receiver or null if no such item exists. The point is in the coordinate system of the receiver.
      Parameters:
      point - the point used to locate the item
      Returns:
      the item at the given point
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_NULL_ARGUMENT - if the point 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

    • getItemCount

      public int getItemCount()
      Returns the number of items contained in the receiver.
      Returns:
      the number of items
      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

    • getItems

      public BreadcrumbItem[] getItems()
      Returns an array of BreadcrumbItems which are the items in the receiver.

      Note: This is not the actual structure used by the receiver to maintain its list of items, so modifying the array will not affect the receiver.

      Returns:
      the items in the receiver
      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

    • indexOf

      public int indexOf​(BreadcrumbItem item)
      Searches the receiver's list starting at the first item (index 0) until an item is found that is equal to the argument, and returns the index of that item. If no item is found, returns -1.
      Parameters:
      item - the search item
      Returns:
      the index of the item
      Throws:
      java.lang.IllegalArgumentException -
      • ERROR_NULL_ARGUMENT - if the item is null
      • ERROR_INVALID_ARGUMENT - if the item 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

    • removeItem

      public void removeItem​(BreadcrumbItem item)
      Remove an item to the toolbar
      Parameters:
      item - item to remove