| 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 | * XMenuAddSelection - Adds a selection to an XMenu object. |
| 10 | * |
| 11 | * Author: Tony Della Fera, DEC |
| 12 | * August, 1985 |
| 13 | * |
| 14 | */ |
| 15 | |
| 16 | #include "XMenuInt.h" |
| 17 | |
| 18 | int |
| 19 | XMenuAddSelection(Display *display, register XMenu *menu, register int p_num, char *data, char *label, int active, char const *help) |
| 20 | |
| 21 | /* Menu object to be modified. */ |
| 22 | /* Pane number to be modified. */ |
| 23 | /* Data value. */ |
| 24 | /* Selection label. */ |
| 25 | /* Make selection active? */ |
| 26 | /* Help string */ |
| 27 | { |
| 28 | register XMPane *pane; /* Pane containing the new selection. */ |
| 29 | register XMSelect *sel; /* Newly created selection. */ |
| 30 | |
| 31 | |
| 32 | int label_length; /* Label length 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 | * Find the right pane. |
| 44 | */ |
| 45 | pane = _XMGetPanePtr(menu, p_num); |
| 46 | if (pane == NULL) return(XM_FAILURE); |
| 47 | |
| 48 | /* |
| 49 | * Calloc the XMSelect structure. |
| 50 | */ |
| 51 | sel = (XMSelect *)calloc(1, sizeof(XMSelect)); |
| 52 | if (sel == NULL) { |
| 53 | _XMErrorCode = XME_CALLOC; |
| 54 | return(XM_FAILURE); |
| 55 | } |
| 56 | /* |
| 57 | * Determine label size. |
| 58 | */ |
| 59 | label_length = strlen(label); |
| 60 | label_width = XTextWidth(menu->s_fnt_info, label, label_length); |
| 61 | |
| 62 | /* |
| 63 | * Fill the XMSelect structure. |
| 64 | */ |
| 65 | if (!strcmp (label, "--") || !strcmp (label, "---")) |
| 66 | { |
| 67 | sel->type = SEPARATOR; |
| 68 | sel->active = 0; |
| 69 | } |
| 70 | else |
| 71 | { |
| 72 | sel->type = SELECTION; |
| 73 | sel->active = active; |
| 74 | } |
| 75 | |
| 76 | sel->serial = -1; |
| 77 | sel->label = label; |
| 78 | sel->label_width = label_width; |
| 79 | sel->label_length = label_length; |
| 80 | sel->data = data; |
| 81 | sel->parent_p = pane; |
| 82 | sel->help_string = help; |
| 83 | |
| 84 | /* |
| 85 | * Insert the selection at the end of the selection list. |
| 86 | */ |
| 87 | emacs_insque(sel, pane->s_list->prev); |
| 88 | |
| 89 | /* |
| 90 | * Update the selection count. |
| 91 | */ |
| 92 | pane->s_count++; |
| 93 | |
| 94 | /* |
| 95 | * Schedule a recompute. |
| 96 | */ |
| 97 | menu->recompute = 1; |
| 98 | |
| 99 | /* |
| 100 | * Return the selection number just added. |
| 101 | */ |
| 102 | _XMErrorCode = XME_NO_ERROR; |
| 103 | return((pane->s_count - 1)); |
| 104 | } |