CwRebar CwRebar contains one or more bands; each band can contain a single widget. Interactions with the child widget can be sent to a listener such as the rebar or the application to which the rebar belongs. Limitations to CwRebar The rebar control consists of one or more bands, each of which may contain a child widget control. Neither the color of the rebar control nor the colors of the individual bands is settable. Rebars with fixed-width bands should be placed in a fixed size window. Protocol Protocols can be divided into serveral groups: • pertaining to creation • pertaining to the rebar • pertaining to a band contained in the rebar. Those bands are instances of CwBand. creation createBand: theName argBlock: argBlock Create a CwBand as a child of the receiver. rebar autoSize: aBolean specifies whether a band resizes automatically deleteAllItems Delete all the items from the receiver and release all OS resources associated with the items. deleteItem: anItem Delete the item from the receiver and release all OS resources associated with the item. deleteItems: items Delete the specified items from the receiver and release all OS resources associated with the items. fixedOrder: aBoolean specifies wthether the bars always appear in the same order. If the bars may be reordered, the user can drag and drop the bands to reorder them. variableHeight: aBoolean Sets whether the bands in the rebar need not all share the same height.CwBand protocol Pertaining to bands in the rebar backgroundBitmap: a CgPixmap Specifies the pixmap that appears as the item's background. bandLabel: aString Specifies the label that appears on the item. height: anInteger Specifies the height of the band in pixels. widget: aCwWidget Specifies the child widget of the band. width: anInteger Specifies the width of the band in pixels. Several methods control the way the band looks and how the bands are laid out within the rebar. alwaysGripper: aBoolean if true, always show a gripper separating bands. (default is true) break: aBoolean if true, start the band on a new row. (default is false) childToEdge: aBoolean – make any child widget fill the band (default is true) fixed Size: aBoolean if true, do not alter the size. (default is false) never Grip: aBoolean if true, never show a gripper separating bands. (default is false) variable Height: aBoolean if true, the height of the band may differ from the height of other bands in the rebar control. (default is false) The following protocols affect the width of all the bands in the rebar: hide Make the band invisible. maximize Make the band as large as possible. minimize Make the band as small as possible. show Make the band visible. Callbacks and Events The progress bar has no callbacks or events specific to it. Example Create a Rebar with a single band. That band contains a pushbutton. | aButton1 band1 | rebar := CwRebar createWidget: 'rebar' parent: shell argBlock: nil. ... aButton1 := CwPushButton createManagedWidget: 'Button 2' parent: rebar argBlock: [:w | w labelString: 'Button 2'; x: 100; width: 75; height: 26; marginWidth: 17]. ... band1 := rebar createBand: 'band1' argBlock: [:w | w bandLabel: 'band1'; widget: aButton1]. ... aButton1 addCallback: XmNactivateCallback receiver: self selector: #singleSelection:clientData:callData:
