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 | ||
| 15 | #include <config.h> | |
| 16 | #include "XMenuInt.h" | |
| 17 | ||
| 18 | int | |
| 55660072 PE |
19 | XMenuAddPane(Display *display, register XMenu *menu, register char const *label, int active) |
| 20 | ||
| b782e2d7 DN |
21 | /* Menu object to be modified. */ |
| 22 | /* Selection label. */ | |
| 23 | /* Make selection active? */ | |
| e745ede7 DL |
24 | { |
| 25 | register XMPane *pane; /* Newly created pane. */ | |
| 55660072 | 26 | register XMSelect *sel; /* Initial selection for the new pane. */ |
| 177c0ea7 | 27 | |
| e745ede7 DL |
28 | int label_length; /* Label length in characters. */ |
| 29 | int label_width; /* Label width in pixels. */ | |
| 30 | ||
| 31 | /* | |
| 32 | * Check for NULL pointers! | |
| 33 | */ | |
| 34 | if (label == NULL) { | |
| 35 | _XMErrorCode = XME_ARG_BOUNDS; | |
| 36 | return(XM_FAILURE); | |
| 37 | } | |
| 38 | ||
| 39 | /* | |
| 40 | * Calloc the XMPane structure and the initial XMSelect. | |
| 41 | */ | |
| 42 | pane = (XMPane *)calloc(1, sizeof(XMPane)); | |
| 43 | if (pane == NULL) { | |
| 44 | _XMErrorCode = XME_CALLOC; | |
| 45 | return(XM_FAILURE); | |
| 46 | } | |
| 55660072 PE |
47 | sel = (XMSelect *)calloc(1, sizeof(XMSelect)); |
| 48 | if (sel == NULL) { | |
| e745ede7 DL |
49 | _XMErrorCode = XME_CALLOC; |
| 50 | return(XM_FAILURE); | |
| 51 | } | |
| 177c0ea7 | 52 | |
| e745ede7 DL |
53 | /* |
| 54 | * Determine label size. | |
| 55 | */ | |
| 56 | label_length = strlen(label); | |
| 57 | label_width = XTextWidth(menu->p_fnt_info, | |
| 58 | label, | |
| 59 | label_length); | |
| 177c0ea7 | 60 | |
| e745ede7 DL |
61 | /* |
| 62 | * Set up the initial selection. | |
| 63 | * Values not explicitly set are zeroed by calloc. | |
| 64 | */ | |
| 55660072 PE |
65 | sel->next = sel; |
| 66 | sel->prev = sel; | |
| 67 | sel->type = SL_HEADER; | |
| 68 | sel->serial = -1; | |
| 69 | sel->parent_p = pane; | |
| e745ede7 DL |
70 | |
| 71 | /* | |
| 72 | * Fill the XMPane structure. | |
| 73 | * X and Y position are set to 0 since a recompute will follow. | |
| 74 | */ | |
| 75 | pane->type = PANE; | |
| 76 | pane->active = active; | |
| 77 | pane->serial = -1; | |
| 78 | pane->label = label; | |
| 79 | pane->label_width = label_width; | |
| 80 | pane->label_length = label_length; | |
| 55660072 | 81 | pane->s_list = sel; |
| e745ede7 DL |
82 | |
| 83 | /* | |
| 84 | * Insert the pane at the end of the pane list. | |
| 85 | */ | |
| 86 | emacs_insque(pane, menu->p_list->prev); | |
| 87 | ||
| 88 | /* | |
| 177c0ea7 | 89 | * Update the pane count. |
| e745ede7 DL |
90 | */ |
| 91 | menu->p_count++; | |
| 92 | ||
| 93 | /* | |
| 94 | * Schedule a recompute. | |
| 95 | */ | |
| 96 | menu->recompute = 1; | |
| 97 | ||
| 98 | /* | |
| 99 | * Return the pane number just added. | |
| 100 | */ | |
| 101 | _XMErrorCode = XME_NO_ERROR; | |
| 102 | return((menu->p_count - 1)); | |
| 103 | } |