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- #include "copyright.h"
-
- /* $Header: InsPane.c,v 1.3 87/12/20 12:05:11 rws Exp $ */
- /* Copyright Massachusetts Institute of Technology 1985 */
-
- /*
- * XMenu: MIT Project Athena, X Window system menu package
- *
- * XMenuInsertPane - Inserts a pane into an XMenu object in
- * a particular position.
- *
- * Author: Tony Della Fera, DEC
- * 20-Nov-85
- *
- */
-
- #include "XMenuInt.h"
-
- int
- XMenuInsertPane(menu, p_num, label, active)
- register XMenu *menu; /* Menu object to be modified. */
- register int p_num; /* Pane number of new pane. */
- char *label; /* Selection label. */
- int active; /* Make selection active? */
- {
- register XMPane *p_ptr; /* XMPane pointer. */
- register XMPane *pane; /* Newly created pane. */
- register XMSelect *select; /* Initial selection for the new pane. */
-
- 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 pane number one less than the one specified since that
- * is the pane after which the insertion will occur.
- */
- p_ptr = _XMGetPanePtr(menu, (p_num - 1));
- if (p_ptr == NULL) return(XM_FAILURE);
-
- /*
- * Calloc the XMPane structure and the initial XMSelect.
- */
- pane = (XMPane *)calloc(1, sizeof(XMPane));
- if (pane == NULL) {
- _XMErrorCode = XME_CALLOC;
- return(XM_FAILURE);
- }
- 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->p_fnt_info, label, label_length);
-
- /*
- * Set up the initial selection.
- * Values not explicitly set are zeroed by calloc.
- */
- select->next = select;
- select->prev = select;
- select->type = SL_HEADER;
- select->serial = -1;
- select->parent_p = pane;
-
- /*
- * Fill the XMPane structure.
- */
- pane->type = PANE;
- pane->active = active;
- pane->serial = -1;
- pane->label = label;
- pane->label_width = label_width;
- pane->label_length = label_length;
- pane->s_list = select;
-
- /*
- * Insert the pane after the pane with the pane
- * number one less than the desired number for the
- * new pane.
- */
- insque(pane, p_ptr);
-
- /*
- * Update the pane count.
- */
- menu->p_count++;
-
- /*
- * Schedule a recompute.
- */
- menu->recompute = 1;
-
- /*
- * Return the number of the pane just added.
- */
- _XMErrorCode = XME_NO_ERROR;
- return(p_num);
- }
-