HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| e745ede7 | 1 | /* Copyright Massachusetts Institute of Technology 1985 */ |
| 2cd3138f GM |
2 | |
| 3 | #include "copyright.h" | |
| e745ede7 DL |
4 | |
| 5 | /* | |
| 6 | * XMenu: MIT Project Athena, X Window system menu package | |
| 7 | * | |
| 8 | * XMenuAddPane - Adds a pane to an XMenu object. | |
| 9 | * | |
| 10 | * Author: Tony Della Fera, DEC | |
| 11 | * August, 1985 | |
| 12 | * | |
| 13 | */ | |
| 14 | ||
| e745ede7 DL |
15 | #include "XMenuInt.h" |
| 16 | ||
| 17 | int | |
| 55660072 PE |
18 | XMenuAddPane(Display *display, register XMenu *menu, register char const *label, int active) |
| 19 | ||
| b782e2d7 DN |
20 | /* Menu object to be modified. */ |
| 21 | /* Selection label. */ | |
| 22 | /* Make selection active? */ | |
| e745ede7 DL |
23 | { |
| 24 | register XMPane *pane; /* Newly created pane. */ | |
| 55660072 | 25 | register XMSelect *sel; /* Initial selection for the new pane. */ |
| 177c0ea7 | 26 | |
| e745ede7 DL |
27 | int label_length; /* Label length in characters. */ |
| 28 | int label_width; /* Label width in pixels. */ | |
| 29 | ||
| 30 | /* | |
| 31 | * Check for NULL pointers! | |
| 32 | */ | |
| 33 | if (label == NULL) { | |
| 34 | _XMErrorCode = XME_ARG_BOUNDS; | |
| 35 | return(XM_FAILURE); | |
| 36 | } | |
| 37 | ||
| 38 | /* | |
| 39 | * Calloc the XMPane structure and the initial XMSelect. | |
| 40 | */ | |
| 41 | pane = (XMPane *)calloc(1, sizeof(XMPane)); | |
| 42 | if (pane == NULL) { | |
| 43 | _XMErrorCode = XME_CALLOC; | |
| 44 | return(XM_FAILURE); | |
| 45 | } | |
| 55660072 PE |
46 | sel = (XMSelect *)calloc(1, sizeof(XMSelect)); |
| 47 | if (sel == NULL) { | |
| e745ede7 DL |
48 | _XMErrorCode = XME_CALLOC; |
| 49 | return(XM_FAILURE); | |
| 50 | } | |
| 177c0ea7 | 51 | |
| e745ede7 DL |
52 | /* |
| 53 | * Determine label size. | |
| 54 | */ | |
| 55 | label_length = strlen(label); | |
| 56 | label_width = XTextWidth(menu->p_fnt_info, | |
| 57 | label, | |
| 58 | label_length); | |
| 177c0ea7 | 59 | |
| e745ede7 DL |
60 | /* |
| 61 | * Set up the initial selection. | |
| 62 | * Values not explicitly set are zeroed by calloc. | |
| 63 | */ | |
| 55660072 PE |
64 | sel->next = sel; |
| 65 | sel->prev = sel; | |
| 66 | sel->type = SL_HEADER; | |
| 67 | sel->serial = -1; | |
| 68 | sel->parent_p = pane; | |
| e745ede7 DL |
69 | |
| 70 | /* | |
| 71 | * Fill the XMPane structure. | |
| 72 | * X and Y position are set to 0 since a recompute will follow. | |
| 73 | */ | |
| 74 | pane->type = PANE; | |
| 75 | pane->active = active; | |
| 76 | pane->serial = -1; | |
| 77 | pane->label = label; | |
| 78 | pane->label_width = label_width; | |
| 79 | pane->label_length = label_length; | |
| 55660072 | 80 | pane->s_list = sel; |
| e745ede7 DL |
81 | |
| 82 | /* | |
| 83 | * Insert the pane at the end of the pane list. | |
| 84 | */ | |
| 85 | emacs_insque(pane, menu->p_list->prev); | |
| 86 | ||
| 87 | /* | |
| 177c0ea7 | 88 | * Update the pane count. |
| e745ede7 DL |
89 | */ |
| 90 | menu->p_count++; | |
| 91 | ||
| 92 | /* | |
| 93 | * Schedule a recompute. | |
| 94 | */ | |
| 95 | menu->recompute = 1; | |
| 96 | ||
| 97 | /* | |
| 98 | * Return the pane number just added. | |
| 99 | */ | |
| 100 | _XMErrorCode = XME_NO_ERROR; | |
| 101 | return((menu->p_count - 1)); | |
| 102 | } |