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Annotation of researchv9/X11/src/X.V11R1/lib/oldXMenu/InsSel.c, revision 1.1.1.1

1.1       root        1: #include <X11/copyright.h>
                      2: 
                      3: /* $Header: InsSel.c,v 1.2 87/09/10 20:31:25 chris Exp $ */
                      4: /* Copyright    Massachusetts Institute of Technology    1985  */
                      5: 
                      6: /*
                      7:  * XMenu:      MIT Project Athena, X Window system menu package
                      8:  *
                      9:  *     XMenuInsertSelection - Inserts a selection into an XMenu object
                     10:  *
                     11:  *     Author:         Tony Della Fera, DEC
                     12:  *                     20-Nov-85
                     13:  *
                     14:  */
                     15: 
                     16: #include "XMenuInternal.h"
                     17: 
                     18: int
                     19: XMenuInsertSelection(menu, p_num, s_num, data, label, active)
                     20:     register XMenu *menu;      /* Menu object to be modified. */
                     21:     register int p_num;                /* Pane number to be modified. */
                     22:     register int s_num;                /* Selection number of new selection. */
                     23:     char *data;                        /* Data value. */
                     24:     char *label;               /* Selection label. */
                     25:     int active;                        /* Make selection active? */
                     26: {
                     27:     register XMPane *p_ptr;    /* XMPane pointer. */
                     28:     register XMSelect *s_ptr;  /* XMSelect pointer. */
                     29: 
                     30:     XMSelect *select;          /* Newly created selection. */
                     31: 
                     32:     int label_length;          /* Label lenght in characters. */
                     33:     int label_width;           /* Label width in pixels. */
                     34:     
                     35:     /*
                     36:      * Check for NULL pointers!
                     37:      */
                     38:     if (label == NULL) {
                     39:        _XMErrorCode = XME_ARG_BOUNDS;
                     40:        return(XM_FAILURE);
                     41:     }
                     42: 
                     43:     /*
                     44:      * Find the right pane.
                     45:      */
                     46:     p_ptr = _XMGetPanePtr(menu, p_num);
                     47:     if (p_ptr == NULL) return(XM_FAILURE);
                     48: 
                     49:     /*
                     50:      * Find the selection number one less than the one specified since that
                     51:      * is the selection after which the insertion will occur.
                     52:      */
                     53:     s_ptr = _XMGetSelectionPtr(p_ptr, (s_num - 1));
                     54:     if (s_ptr == NULL) return(XM_FAILURE);
                     55: 
                     56:     /*
                     57:      * Calloc the XMSelect structure.
                     58:      */
                     59:     select = (XMSelect *)calloc(1, sizeof(XMSelect));
                     60:     if (select == NULL) {
                     61:        _XMErrorCode = XME_CALLOC;
                     62:        return(XM_FAILURE);
                     63:     }
                     64: 
                     65:     /*
                     66:      * Determine label size.
                     67:      */
                     68:     label_length = strlen(label);
                     69:     label_width = XTextWidth(menu->s_fnt_info, label, label_length);
                     70: 
                     71: 
                     72:     /*
                     73:      * Fill the XMSelect structure.
                     74:      */
                     75:     select->type = SELECTION;
                     76:     select->active = active;
                     77:     select->serial = -1;
                     78:     select->label = label;
                     79:     select->label_width = label_width;
                     80:     select->label_length = label_length;
                     81:     select->data = data;
                     82:     select->parent_p = p_ptr;
                     83: 
                     84:     /*
                     85:      * Insert the selection after the selection with the selection
                     86:      * number one less than the desired number for the new selection.
                     87:      */
                     88:     insque(select, s_ptr);
                     89: 
                     90:     /*
                     91:      * Update the selection count.
                     92:      */
                     93:     p_ptr->s_count++;
                     94: 
                     95:     /*
                     96:      * Schedule a recompute.
                     97:      */
                     98:     menu->recompute = 1;
                     99: 
                    100:     /*
                    101:      * Return the selection number just inserted.
                    102:      */
                    103:     _XMErrorCode = XME_NO_ERROR;
                    104:     return(s_num);
                    105: }

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