[7d4fbcd] | 1 | #include <string.h> |
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| 2 | #include "owl.h" |
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| 3 | |
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| 4 | #define BOTTOM_OFFSET 1 |
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| 5 | |
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[b2b0773] | 6 | /* initialize the viewwin e. 'win' is an already initialzed curses |
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| 7 | * window that will be used by viewwin |
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| 8 | */ |
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[e19eb97] | 9 | void owl_viewwin_init_text(owl_viewwin *v, WINDOW *win, int winlines, int wincols, const char *text) |
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[b2b0773] | 10 | { |
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[7d4fbcd] | 11 | owl_fmtext_init_null(&(v->fmtext)); |
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| 12 | if (text) { |
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| 13 | owl_fmtext_append_normal(&(v->fmtext), text); |
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[4083c49] | 14 | if (text[0] != '\0' && text[strlen(text) - 1] != '\n') { |
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[7d4fbcd] | 15 | owl_fmtext_append_normal(&(v->fmtext), "\n"); |
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| 16 | } |
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| 17 | v->textlines=owl_fmtext_num_lines(&(v->fmtext)); |
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| 18 | } |
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| 19 | v->topline=0; |
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| 20 | v->rightshift=0; |
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| 21 | v->winlines=winlines; |
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| 22 | v->wincols=wincols; |
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| 23 | v->curswin=win; |
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[afbf668] | 24 | v->onclose_hook = NULL; |
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| 25 | } |
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| 26 | |
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[e19eb97] | 27 | void owl_viewwin_append_text(owl_viewwin *v, const char *text) { |
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[afbf668] | 28 | owl_fmtext_append_normal(&(v->fmtext), text); |
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| 29 | v->textlines=owl_fmtext_num_lines(&(v->fmtext)); |
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[7d4fbcd] | 30 | } |
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| 31 | |
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[b2b0773] | 32 | /* initialize the viewwin e. 'win' is an already initialzed curses |
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| 33 | * window that will be used by viewwin |
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| 34 | */ |
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[075ba92] | 35 | void owl_viewwin_init_fmtext(owl_viewwin *v, WINDOW *win, int winlines, int wincols, const owl_fmtext *fmtext) |
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[b2b0773] | 36 | { |
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[dd6af02] | 37 | char *text; |
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| 38 | |
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[7d4fbcd] | 39 | owl_fmtext_copy(&(v->fmtext), fmtext); |
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[dd6af02] | 40 | text = owl_fmtext_print_plain(fmtext); |
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| 41 | if (text[0] != '\0' && text[strlen(text) - 1] != '\n') { |
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| 42 | owl_fmtext_append_normal(&(v->fmtext), "\n"); |
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| 43 | } |
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[3e55268] | 44 | owl_free(text); |
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[7d4fbcd] | 45 | v->textlines=owl_fmtext_num_lines(&(v->fmtext)); |
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| 46 | v->topline=0; |
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| 47 | v->rightshift=0; |
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| 48 | v->winlines=winlines; |
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| 49 | v->wincols=wincols; |
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| 50 | v->curswin=win; |
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| 51 | } |
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| 52 | |
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[b2b0773] | 53 | void owl_viewwin_set_curswin(owl_viewwin *v, WINDOW *w, int winlines, int wincols) |
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| 54 | { |
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[7d4fbcd] | 55 | v->curswin=w; |
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| 56 | v->winlines=winlines; |
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| 57 | v->wincols=wincols; |
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| 58 | } |
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| 59 | |
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[afbf668] | 60 | void owl_viewwin_set_onclose_hook(owl_viewwin *v, void (*onclose_hook) (owl_viewwin *vwin, void *data), void *onclose_hook_data) { |
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| 61 | v->onclose_hook = onclose_hook; |
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| 62 | v->onclose_hook_data = onclose_hook_data; |
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| 63 | } |
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| 64 | |
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[b2b0773] | 65 | /* regenerate text on the curses window. */ |
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| 66 | /* if update == 1 then do a doupdate() */ |
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| 67 | void owl_viewwin_redisplay(owl_viewwin *v, int update) |
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| 68 | { |
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[7d4fbcd] | 69 | owl_fmtext fm1, fm2; |
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| 70 | |
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| 71 | werase(v->curswin); |
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| 72 | wmove(v->curswin, 0, 0); |
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| 73 | |
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[af2ca19] | 74 | owl_fmtext_init_null(&fm1); |
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| 75 | owl_fmtext_init_null(&fm2); |
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| 76 | |
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[7d4fbcd] | 77 | owl_fmtext_truncate_lines(&(v->fmtext), v->topline, v->winlines-BOTTOM_OFFSET, &fm1); |
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| 78 | owl_fmtext_truncate_cols(&fm1, v->rightshift, v->wincols-1+v->rightshift, &fm2); |
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| 79 | |
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[47519e1b] | 80 | owl_fmtext_curs_waddstr_without_search(&fm2, v->curswin); |
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[7d4fbcd] | 81 | |
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| 82 | /* print the message at the bottom */ |
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| 83 | wmove(v->curswin, v->winlines-1, 0); |
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| 84 | wattrset(v->curswin, A_REVERSE); |
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[3a2daac] | 85 | if (v->textlines - v->topline > v->winlines-BOTTOM_OFFSET) { |
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[7d4fbcd] | 86 | waddstr(v->curswin, "--More-- (Space to see more, 'q' to quit)"); |
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| 87 | } else { |
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| 88 | waddstr(v->curswin, "--End-- (Press 'q' to quit)"); |
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| 89 | } |
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| 90 | wattroff(v->curswin, A_REVERSE); |
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| 91 | wnoutrefresh(v->curswin); |
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| 92 | |
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| 93 | if (update==1) { |
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| 94 | doupdate(); |
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| 95 | } |
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[af2ca19] | 96 | |
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| 97 | owl_fmtext_free(&fm1); |
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| 98 | owl_fmtext_free(&fm2); |
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[7d4fbcd] | 99 | } |
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| 100 | |
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[b2b0773] | 101 | void owl_viewwin_pagedown(owl_viewwin *v) |
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| 102 | { |
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[7d4fbcd] | 103 | v->topline+=v->winlines - BOTTOM_OFFSET; |
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| 104 | if ( (v->topline+v->winlines-BOTTOM_OFFSET) > v->textlines) { |
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| 105 | v->topline = v->textlines - v->winlines + BOTTOM_OFFSET; |
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| 106 | } |
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| 107 | } |
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| 108 | |
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[b2b0773] | 109 | void owl_viewwin_linedown(owl_viewwin *v) |
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| 110 | { |
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[7d4fbcd] | 111 | v->topline++; |
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| 112 | if ( (v->topline+v->winlines-BOTTOM_OFFSET) > v->textlines) { |
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| 113 | v->topline = v->textlines - v->winlines + BOTTOM_OFFSET; |
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| 114 | } |
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| 115 | } |
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| 116 | |
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[b2b0773] | 117 | void owl_viewwin_pageup(owl_viewwin *v) |
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| 118 | { |
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[7d4fbcd] | 119 | v->topline-=v->winlines; |
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| 120 | if (v->topline<0) v->topline=0; |
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| 121 | } |
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| 122 | |
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[b2b0773] | 123 | void owl_viewwin_lineup(owl_viewwin *v) |
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| 124 | { |
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[7d4fbcd] | 125 | v->topline--; |
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| 126 | if (v->topline<0) v->topline=0; |
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| 127 | } |
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| 128 | |
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[b2b0773] | 129 | void owl_viewwin_right(owl_viewwin *v, int n) |
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| 130 | { |
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[7d4fbcd] | 131 | v->rightshift+=n; |
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| 132 | } |
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| 133 | |
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[b2b0773] | 134 | void owl_viewwin_left(owl_viewwin *v, int n) |
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| 135 | { |
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[7d4fbcd] | 136 | v->rightshift-=n; |
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| 137 | if (v->rightshift<0) v->rightshift=0; |
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| 138 | } |
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| 139 | |
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[b2b0773] | 140 | void owl_viewwin_top(owl_viewwin *v) |
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| 141 | { |
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[7d4fbcd] | 142 | v->topline=0; |
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| 143 | v->rightshift=0; |
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| 144 | } |
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| 145 | |
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[b2b0773] | 146 | void owl_viewwin_bottom(owl_viewwin *v) |
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| 147 | { |
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[7d4fbcd] | 148 | v->topline = v->textlines - v->winlines + BOTTOM_OFFSET; |
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| 149 | } |
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| 150 | |
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[b2b0773] | 151 | void owl_viewwin_free(owl_viewwin *v) |
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| 152 | { |
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[afbf668] | 153 | if (v->onclose_hook) { |
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| 154 | v->onclose_hook(v, v->onclose_hook_data); |
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[8721756] | 155 | v->onclose_hook = NULL; |
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| 156 | v->onclose_hook_data = NULL; |
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[afbf668] | 157 | } |
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[7d4fbcd] | 158 | owl_fmtext_free(&(v->fmtext)); |
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| 159 | } |
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