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1 | #include "copyright.h" |
2 | ||
f5a719c8 | 3 | /* $Header: /gd/gnu/cvsroot/emacs/oldXMenu/AddSel.c,v 1.1 1999/10/03 19:34:52 fx Exp $ */ |
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4 | /* Copyright Massachusetts Institute of Technology 1985 */ |
5 | ||
6 | /* | |
7 | * XMenu: MIT Project Athena, X Window system menu package | |
8 | * | |
9 | * XMenuAddSelection - Adds a selection to an XMenu object. | |
10 | * | |
11 | * Author: Tony Della Fera, DEC | |
12 | * August, 1985 | |
13 | * | |
14 | */ | |
15 | ||
16 | #include <config.h> | |
17 | #include "XMenuInt.h" | |
18 | ||
19 | int | |
f5a719c8 | 20 | XMenuAddSelection(display, menu, p_num, data, label, active, help) |
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21 | Display *display; |
22 | register XMenu *menu; /* Menu object to be modified. */ | |
23 | register int p_num; /* Pane number to be modified. */ | |
24 | char *data; /* Data value. */ | |
25 | char *label; /* Selection label. */ | |
26 | int active; /* Make selection active? */ | |
f5a719c8 | 27 | char *help; /* Help string */ |
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28 | { |
29 | register XMPane *pane; /* Pane containing the new selection. */ | |
30 | register XMSelect *select; /* Newly created selection. */ | |
31 | ||
32 | ||
33 | int label_length; /* Label lenght in characters. */ | |
34 | int label_width; /* Label width in pixels. */ | |
35 | ||
36 | /* | |
37 | * Check for NULL pointers! | |
38 | */ | |
39 | if (label == NULL) { | |
40 | _XMErrorCode = XME_ARG_BOUNDS; | |
41 | return(XM_FAILURE); | |
42 | } | |
43 | /* | |
44 | * Find the right pane. | |
45 | */ | |
46 | pane = _XMGetPanePtr(menu, p_num); | |
47 | if (pane == NULL) return(XM_FAILURE); | |
48 | ||
49 | /* | |
50 | * Calloc the XMSelect structure. | |
51 | */ | |
52 | select = (XMSelect *)calloc(1, sizeof(XMSelect)); | |
53 | if (select == NULL) { | |
54 | _XMErrorCode = XME_CALLOC; | |
55 | return(XM_FAILURE); | |
56 | } | |
57 | /* | |
58 | * Determine label size. | |
59 | */ | |
60 | label_length = strlen(label); | |
61 | label_width = XTextWidth(menu->s_fnt_info, label, label_length); | |
62 | ||
63 | /* | |
64 | * Fill the XMSelect structure. | |
65 | */ | |
66 | if (!strcmp (label, "--") || !strcmp (label, "---")) | |
67 | { | |
68 | select->type = SEPARATOR; | |
69 | select->active = 0; | |
70 | } | |
71 | else | |
72 | { | |
73 | select->type = SELECTION; | |
74 | select->active = active; | |
75 | } | |
76 | ||
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 = pane; | |
f5a719c8 | 83 | select->help_string = help; |
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84 | |
85 | /* | |
86 | * Insert the selection at the end of the selection list. | |
87 | */ | |
88 | emacs_insque(select, pane->s_list->prev); | |
89 | ||
90 | /* | |
91 | * Update the selection count. | |
92 | */ | |
93 | pane->s_count++; | |
94 | ||
95 | /* | |
96 | * Schedule a recompute. | |
97 | */ | |
98 | menu->recompute = 1; | |
99 | ||
100 | /* | |
101 | * Return the selection number just added. | |
102 | */ | |
103 | _XMErrorCode = XME_NO_ERROR; | |
104 | return((pane->s_count - 1)); | |
105 | } |