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 | ||
| e745ede7 DL |
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 | |
| b782e2d7 DN |
21 | XMenuInsertPane(register XMenu *menu, register int p_num, char *label, int active) |
| 22 | /* Menu object to be modified. */ | |
| 23 | /* Pane number of new pane. */ | |
| 24 | /* Selection label. */ | |
| 25 | /* Make selection active? */ | |
| e745ede7 DL |
26 | { |
| 27 | register XMPane *p_ptr; /* XMPane pointer. */ | |
| 28 | register XMPane *pane; /* Newly created pane. */ | |
| 55660072 | 29 | register XMSelect *sel; /* Initial selection for the new pane. */ |
| 177c0ea7 | 30 | |
| e745ede7 DL |
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 | } | |
| 55660072 PE |
57 | sel = (XMSelect *)calloc(1, sizeof(XMSelect)); |
| 58 | if (sel == NULL) { | |
| e745ede7 DL |
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 | */ | |
| 55660072 PE |
73 | sel->next = sel; |
| 74 | sel->prev = sel; | |
| 75 | sel->type = SL_HEADER; | |
| 76 | sel->serial = -1; | |
| 77 | sel->parent_p = pane; | |
| e745ede7 DL |
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; | |
| 55660072 | 88 | pane->s_list = sel; |
| e745ede7 DL |
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 | /* | |
| 177c0ea7 | 98 | * Update the pane count. |
| e745ede7 DL |
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 | } |