Widgets

Both the OLIT and Solaris Motif toolkits support a number of common widgets and gadgets with similar functionality, and each supports a number of more exclusive widgets. If a widget is implemented in one toolkit but not in the other, you can often build an equivalent object using multiple widgets in the other toolkit.

Table 5-4 matches the common widget name to the actual class name of the widget in each toolkit.

Widgets Exclusive to Solaris Motif

This section briefly describes the widgets that are exclusive to Solaris Motif.

These widgets are also available for Motif development in the OpenWindows environment, except for the DtTerm, DtEditor, DtComboBox, DtSpinBox, and DtMenuButton widgets.

• DtTerm

  This widget provides the functionality required to emulate an ANSI X3.64-1979-style terminal emulator (specifically a DEC VT220-like terminal with extensions).

• DtEditor

  This widget provides a programmatic interface for editing services such as cut and paste.

• DtComboBox

  This widget is a combination of a text field and a list widget that provides a list of valid choices for the text field. Selecting an item from this list automatically fills the text field with that list item.

• DtSpinBox

  This widget is a convenient user interface control that increments and decrements an arbitrary TextField.

• DtMenuButton

  This widget is a command widget that complements the menu cascading functionality of an XmCascadeButton widget. (OLIT has its own menu button widget, with equivalent functionality to DtMenuButton.)

• XmArrowButton

  This button is a primitive push button widget that displays an arrow label.

• XmCommand

  This is a manager widget that builds a command box and manages the user-selected commands and command history.

• XmDrawnButton

  This button is a primitive push button whose label can be drawn by the program.

• XmFrame

  This manager widget is used to parent a single child and enclose that child with a frame or border.

• XmLabelGadget

  This gadget is a low-overhead object for read-only text.

• XmMainWindow

  This manager widget supports a menu bar, command area, and work area.

• XmPanedWindow

  This manager widget implements resizeable panes within a window.

• XmSelectionBox

  This widget box allows you to select one item from a list in a general dialog box.

• FileSelectionBox

  This widget provides a standard way to select a file (typically for the application to read or write).

The libDtWidget library, which contains the DtComboBox, DtSpinBox, DtMenuButton and DtEditor widgets, depends directly on the following libraries:

• Xm library for the Motif superclass support

• Xt library for creation and manipulation of widgets

• X library for the base X Window System

Widgets Exclusive to OLIT

This section briefly describes the widgets that are exclusive to OLIT.

• DropTarget

  This primitive widget implements both the source and destination ends of drag-and-drop operations.

• FlatWidget

  These special widgets manage any number of subobjects within the context of a single widget. When implementing menus or choice objects that contain many subitems, they provide a significant memory savings.

• FooterPanel

  This manager widget automatically supports a window with a floating footer area.

• RubberTile

  This manager widget allows relative-sizing constraints to be placed on its children.

• Stub

  This primitive widget enables you to customize its behavior without subclassing.