root/trunk/oldXMenu/InsPane.c

Revision 4196, 2.7 kB (checked in by miyoshi, 2 years ago)

Sync up with Emacs CVS HEAD.

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1 /* Copyright    Massachusetts Institute of Technology    1985   */
2
3 #include "copyright.h"
4
5
6 /*
7  * XMenu:       MIT Project Athena, X Window system menu package
8  *
9  *      XMenuInsertPane - Inserts a pane into an XMenu object in
10  *                        a particular position.
11  *
12  *      Author:         Tony Della Fera, DEC
13  *                      20-Nov-85
14  *
15  */
16
17 #include <config.h>
18 #include "XMenuInt.h"
19
20 int
21 XMenuInsertPane(menu, p_num, label, active)
22     register XMenu *menu;       /* Menu object to be modified. */
23     register int p_num;         /* Pane number of new pane. */
24     char *label;                /* Selection label. */
25     int active;                 /* Make selection active? */
26 {
27     register XMPane *p_ptr;     /* XMPane pointer. */
28     register XMPane *pane;      /* Newly created pane. */
29     register XMSelect *select;  /* Initial selection for the new pane. */
30
31     int label_length;           /* Label length in characters. */
32     int label_width;            /* Label width in pixels. */
33
34     /*
35      * Check for NULL pointers!
36      */
37     if (label == NULL) {
38         _XMErrorCode = XME_ARG_BOUNDS;
39         return(XM_FAILURE);
40     }
41
42     /*
43      * Find the pane number one less than the one specified since that
44      * is the pane after which the insertion will occur.
45      */
46     p_ptr = _XMGetPanePtr(menu, (p_num - 1));
47     if (p_ptr == NULL) return(XM_FAILURE);
48
49     /*
50      * Calloc the XMPane structure and the initial XMSelect.
51      */
52     pane = (XMPane *)calloc(1, sizeof(XMPane));
53     if (pane == NULL) {
54         _XMErrorCode = XME_CALLOC;
55         return(XM_FAILURE);
56     }
57     select = (XMSelect *)calloc(1, sizeof(XMSelect));
58     if (select == NULL) {
59         _XMErrorCode = XME_CALLOC;
60         return(XM_FAILURE);
61     }
62
63     /*
64      * Determine label size.
65      */
66     label_length = strlen(label);
67     label_width = XTextWidth(menu->p_fnt_info, label, label_length);
68
69     /*
70      * Set up the initial selection.
71      * Values not explicitly set are zeroed by calloc.
72      */
73     select->next = select;
74     select->prev = select;
75     select->type = SL_HEADER;
76     select->serial = -1;
77     select->parent_p = pane;
78
79     /*
80      * Fill the XMPane structure.
81      */
82     pane->type = PANE;
83     pane->active = active;
84     pane->serial = -1;
85     pane->label = label;
86     pane->label_width = label_width;
87     pane->label_length = label_length;
88     pane->s_list = select;
89
90     /*
91      * Insert the pane after the pane with the pane
92      * number one less than the desired number for the
93      * new pane.
94      */
95     emacs_insque(pane, p_ptr);
96
97     /*
98      * Update the pane count.
99      */
100     menu->p_count++;
101
102     /*
103      * Schedule a recompute.
104      */
105     menu->recompute = 1;
106
107     /*
108      * Return the number of the pane just added.
109      */
110     _XMErrorCode = XME_NO_ERROR;
111     return(p_num);
112 }
113
114 /* arch-tag: ab94d53d-f05b-4273-82d3-f1b01eb9dc9e
115    (do not change this comment) */
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