Volume 6A: Motif Programming Manual

The labels for the text fields are initialized by the text_labels string array. When the RowColumn is created, it is

set to a horizontal orientation and the number of rows is set to the number of items in text_labels. As you can

see, the output of this program is slightly different from the output for the text_form example.

The example uses the XmNisAligned and XmNentryAlignment resources to control the positioning of the

Labels in the RowColumn. These resources control the alignment of widgets that are subclasses of Label and

LabelGadget. When XmNisAligned is True (the default), the alignment is taken from the

XmNentryAlignment resource. The possible alignment values are the same as those that can be set for the Label's

XmNalignment resource:

XmALIGNMENT_BEGINNING

XmALIGNMENT_CENTER

XmALIGNMENT_END

By default, the text is left justified. While the alignment of the Labels could also be specified using the

XmNalignment resource for each widget, it is convenient to be able to set the alignment for the RowColumn and

have it propagate automatically to its children. In our example, we use XmALIGNMENT_END to right justify the

Labels so that they appear to be attached to the Text widgets.

In Motif 1.2, there is an additional resource for controlling the alignment of various children. The

XmNentryVerticalAlignment resource controls the vertical positioning of children that are subclasses of

Label, LabelGadget, and Text. The possible values for this resource are:

XmALIGNMENT_BASELINE_BOTTOM

XmALIGNMENT_BASELINE_TOP ...