HCoop / bpt / emacs.git / blame
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| 2cd3138f GM |
1 | /* Copyright Massachusetts Institute of Technology 1985 */ |
| 2 | ||
| e745ede7 DL |
3 | #include "copyright.h" |
| 4 | ||
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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 | ||
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16 | #include "XMenuInt.h" |
| 17 | ||
| 18 | int | |
| b782e2d7 DN |
19 | XMenuInsertSelection(register XMenu *menu, register int p_num, register int s_num, char *data, char *label, int active) |
| 20 | /* Menu object to be modified. */ | |
| 21 | /* Pane number to be modified. */ | |
| 22 | /* Selection number of new selection. */ | |
| 23 | /* Data value. */ | |
| 24 | /* Selection label. */ | |
| 25 | /* Make selection active? */ | |
| e745ede7 DL |
26 | { |
| 27 | register XMPane *p_ptr; /* XMPane pointer. */ | |
| 28 | register XMSelect *s_ptr; /* XMSelect pointer. */ | |
| 29 | ||
| 55660072 | 30 | XMSelect *sel; /* Newly created selection. */ |
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31 | |
| 32 | int label_length; /* Label length in characters. */ | |
| 33 | int label_width; /* Label width in pixels. */ | |
| 177c0ea7 | 34 | |
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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 | */ | |
| 55660072 PE |
59 | sel = (XMSelect *)calloc(1, sizeof(XMSelect)); |
| 60 | if (sel == NULL) { | |
| e745ede7 DL |
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 | if (!strcmp (label, "--") || !strcmp (label, "---")) | |
| 76 | { | |
| 55660072 PE |
77 | sel->type = SEPARATOR; |
| 78 | sel->active = 0; | |
| e745ede7 DL |
79 | } |
| 80 | else | |
| 81 | { | |
| 55660072 PE |
82 | sel->type = SELECTION; |
| 83 | sel->active = active; | |
| e745ede7 DL |
84 | } |
| 85 | ||
| 55660072 PE |
86 | sel->active = active; |
| 87 | sel->serial = -1; | |
| 88 | sel->label = label; | |
| 89 | sel->label_width = label_width; | |
| 90 | sel->label_length = label_length; | |
| 91 | sel->data = data; | |
| 92 | sel->parent_p = p_ptr; | |
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93 | |
| 94 | /* | |
| 95 | * Insert the selection after the selection with the selection | |
| 96 | * number one less than the desired number for the new selection. | |
| 97 | */ | |
| 55660072 | 98 | emacs_insque(sel, s_ptr); |
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99 | |
| 100 | /* | |
| 101 | * Update the selection count. | |
| 102 | */ | |
| 103 | p_ptr->s_count++; | |
| 104 | ||
| 105 | /* | |
| 106 | * Schedule a recompute. | |
| 107 | */ | |
| 108 | menu->recompute = 1; | |
| 109 | ||
| 110 | /* | |
| 111 | * Return the selection number just inserted. | |
| 112 | */ | |
| 113 | _XMErrorCode = XME_NO_ERROR; | |
| 114 | return(s_num); | |
| 115 | } |