How do you make XbaeMatrix widget non editable

I am trying to use XbaeMatrix to display tabular/matrix data but I do not want the cells to be editable.

I can not find how to achieve that.

This is what I have tried:

/*
 * xbae_example.c
 * Minimal XbaeMatrix demo (C89-compatible)
 */

#include <Xm/Xm.h>
#include <Xm/Form.h>
#include <Xbae/Matrix.h>

int main(int argc, char *argv[])
{
    XtAppContext app;
    Widget toplevel, form, matrix;

    static String column_labels[] = { "A", "B", "C" };

    static String row0[] = { "1", "2", "3" };
    static String row1[] = { "4", "5", "6" };
    static String row2[] = { "7", "8", "9" };
    static String *rows[] = { row0, row1, row2 };

    toplevel = XtVaAppInitialize(&app, "XbaeDemo", NULL, 0,
                                 &argc, argv, NULL, NULL);

    form = XtVaCreateManagedWidget("form",
                                   xmFormWidgetClass, toplevel,
                                   NULL);

    matrix = XtVaCreateManagedWidget("matrix",
                                     xbaeMatrixWidgetClass, form,
                                     XmNrows, 3,
                                     XmNcolumns, 3,
                                     XmNrowLabels, NULL,
                                     XmNcolumnLabels, column_labels,
                                     XmNcells, rows,
                                     XmNeditable, False,
                                     XmNcellHighlightThickness, 0,
                                     XmNtraversalOn, False,
                                     NULL);

    XtRealizeWidget(toplevel);
    XtAppMainLoop(app);
    return 0;
}

# Simple Makefile for xbae_example
CC = cc
CFLAGS = -I/usr/local/include -Wall
LDFLAGS = -L/usr/local/lib -lXbae -lXm -lXt -lX11

xbae_example: xbae_example.c
        $(CC) $(CFLAGS) -o $@ $< $(LDFLAGS)

in particular this is the resource tried to make the matrix not editable:

XmNeditable, False,

but the XbaeMatrix cells remain editable, while my intention is them being non editable.

any help/hint is welcomed.

Solution

Some of the comments focus on phrasing rather than the technical issue itself. For completeness, here’s the working solution to the Motif/Xbae problem:

The right mechanism for making cells non-editable is the XmNenterCellCallback which is invoked immediately before a cell is to be edited. It receives a structure with a field named doit

Setting doit=False for a given (row,column) prevents editing of that cell.

#include <Xm/Xm.h>
#include <Xm/Form.h>
#include <Xbae/Matrix.h>

/* Callback: called before a cell is edited */
void block_all_cells(Widget w, XtPointer client, XtPointer call)
{
    XbaeMatrixEnterCellCallbackStruct *cbs =
        (XbaeMatrixEnterCellCallbackStruct *)call;

    /* make every cell non-editable */
    cbs->doit = False;
}

int main(int argc, char *argv[])
{
    XtAppContext app;
    Widget toplevel, form, matrix;

    static String col_labels[] = { "A", "B", "C" };
    static String row0[] = { "1", "2", "3" };
    static String row1[] = { "4", "5", "6" };
    static String row2[] = { "7", "8", "9" };
    static String *rows[] = { row0, row1, row2 };

    toplevel = XtVaAppInitialize(&app, "XbaeDemo", NULL, 0, &argc, argv, NULL, NULL);
    form = XtVaCreateManagedWidget("form", xmFormWidgetClass, toplevel, NULL);

    matrix = XtVaCreateManagedWidget(
        "matrix", xbaeMatrixWidgetClass, form,
        XmNrows, 3,
        XmNcolumns, 3,
        XmNcolumnLabels, col_labels,
        XmNcells, rows,
        NULL
    );

    /* attach callback to block edits */
    XtAddCallback(matrix, XmNenterCellCallback, block_all_cells, NULL);

    XtRealizeWidget(toplevel);
    XtAppMainLoop(app);
    return 0;
}