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- #include "copyright.h"
-
- /* $Header: AddPane.c,v 1.3 87/12/20 12:03:52 rws Exp $ */
- /* Copyright Massachusetts Institute of Technology 1985 */
-
- /*
- * XMenu: MIT Project Athena, X Window system menu package
- *
- * XMenuAddPane - Adds a pane to an XMenu object.
- *
- * Author: Tony Della Fera, DEC
- * August, 1985
- *
- */
-
- #include "XMenuInt.h"
-
- int
- XMenuAddPane(display, menu, label, active)
- Display *display;
- register XMenu *menu; /* Menu object to be modified. */
- register char *label; /* Selection label. */
- int active; /* Make selection active? */
- {
- register XMPane *pane; /* Newly created pane. */
- register XMSelect *select; /* Initial selection for the new pane. */
-
- int label_length; /* Label length in characters. */
- int label_width; /* Label width in pixels. */
-
- /*
- * Check for NULL pointers!
- */
- if (label == NULL) {
- _XMErrorCode = XME_ARG_BOUNDS;
- 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.
- * X and Y position are set to 0 since a recompute will follow.
- */
- 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 at the end of the pane list.
- */
- insque(pane, menu->p_list->prev);
-
- /*
- * Update the pane count.
- */
- menu->p_count++;
-
- /*
- * Schedule a recompute.
- */
- menu->recompute = 1;
-
- /*
- * Return the pane number just added.
- */
- _XMErrorCode = XME_NO_ERROR;
- return((menu->p_count - 1));
- }
-