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- #include "copyright.h"
-
- /* $Header: AddSel.c,v 1.4 87/12/20 12:04:00 rws Exp $ */
- /* Copyright Massachusetts Institute of Technology 1985 */
-
- /*
- * XMenu: MIT Project Athena, X Window system menu package
- *
- * XMenuAddSelection - Adds a selection to an XMenu object.
- *
- * Author: Tony Della Fera, DEC
- * August, 1985
- *
- */
-
- #include "XMenuInt.h"
-
- int
- XMenuAddSelection(display, menu, p_num, data, label, active)
- Display *display;
- register XMenu *menu; /* Menu object to be modified. */
- register int p_num; /* Pane number to be modified. */
- char *data; /* Data value. */
- char *label; /* Selection label. */
- int active; /* Make selection active? */
- {
- register XMPane *pane; /* Pane containing the new selection. */
- register XMSelect *select; /* Newly created selection. */
-
-
- int label_length; /* Label lenght in characters. */
- int label_width; /* Label width in pixels. */
-
- /*
- * Check for NULL pointers!
- */
- if (label == NULL) {
- _XMErrorCode = XME_ARG_BOUNDS;
- return(XM_FAILURE);
- }
- /*
- * Find the right pane.
- */
- pane = _XMGetPanePtr(menu, p_num);
- if (pane == NULL) return(XM_FAILURE);
-
- /*
- * Calloc the XMSelect structure.
- */
- select = (XMSelect *)calloc(1, sizeof(XMSelect));
- if (select == NULL) {
- _XMErrorCode = XME_CALLOC;
- return(XM_FAILURE);
- }
- /*
- * Determine label size.
- */
- label_length = strlen(label);
- label_width = XTextWidth(menu->s_fnt_info, label, label_length);
-
- /*
- * Fill the XMSelect structure.
- */
- select->type = SELECTION;
- select->active = active;
- select->serial = -1;
- select->label = label;
- select->label_width = label_width;
- select->label_length = label_length;
- select->data = data;
- select->parent_p = pane;
-
- /*
- * Insert the selection at the end of the selection list.
- */
- insque(select, pane->s_list->prev);
-
- /*
- * Update the selection count.
- */
- pane->s_count++;
-
- /*
- * Schedule a recompute.
- */
- menu->recompute = 1;
-
- /*
- * Return the selection number just added.
- */
- _XMErrorCode = XME_NO_ERROR;
- return((pane->s_count - 1));
- }
-