[7d4fbcd] | 1 | #include <string.h> |
---|
| 2 | #include "owl.h" |
---|
| 3 | |
---|
| 4 | #define BOTTOM_OFFSET 1 |
---|
| 5 | |
---|
[b2b0773] | 6 | /* initialize the viewwin e. 'win' is an already initialzed curses |
---|
| 7 | * window that will be used by viewwin |
---|
| 8 | */ |
---|
[68f63a2] | 9 | void owl_viewwin_init_text(owl_viewwin *v, owl_window *win, const char *text) |
---|
[b2b0773] | 10 | { |
---|
[7d4fbcd] | 11 | owl_fmtext_init_null(&(v->fmtext)); |
---|
| 12 | if (text) { |
---|
| 13 | owl_fmtext_append_normal(&(v->fmtext), text); |
---|
[4083c49] | 14 | if (text[0] != '\0' && text[strlen(text) - 1] != '\n') { |
---|
[7d4fbcd] | 15 | owl_fmtext_append_normal(&(v->fmtext), "\n"); |
---|
| 16 | } |
---|
| 17 | v->textlines=owl_fmtext_num_lines(&(v->fmtext)); |
---|
| 18 | } |
---|
| 19 | v->topline=0; |
---|
| 20 | v->rightshift=0; |
---|
[afbf668] | 21 | v->onclose_hook = NULL; |
---|
[68f63a2] | 22 | |
---|
| 23 | owl_viewwin_set_window(v, win); |
---|
[afbf668] | 24 | } |
---|
| 25 | |
---|
[e19eb97] | 26 | void owl_viewwin_append_text(owl_viewwin *v, const char *text) { |
---|
[afbf668] | 27 | owl_fmtext_append_normal(&(v->fmtext), text); |
---|
| 28 | v->textlines=owl_fmtext_num_lines(&(v->fmtext)); |
---|
[68f63a2] | 29 | owl_window_dirty(v->window); |
---|
[7d4fbcd] | 30 | } |
---|
| 31 | |
---|
[b2b0773] | 32 | /* initialize the viewwin e. 'win' is an already initialzed curses |
---|
| 33 | * window that will be used by viewwin |
---|
| 34 | */ |
---|
[68f63a2] | 35 | void owl_viewwin_init_fmtext(owl_viewwin *v, owl_window *win, const owl_fmtext *fmtext) |
---|
[b2b0773] | 36 | { |
---|
[dd6af02] | 37 | char *text; |
---|
| 38 | |
---|
[7d4fbcd] | 39 | owl_fmtext_copy(&(v->fmtext), fmtext); |
---|
[dd6af02] | 40 | text = owl_fmtext_print_plain(fmtext); |
---|
| 41 | if (text[0] != '\0' && text[strlen(text) - 1] != '\n') { |
---|
| 42 | owl_fmtext_append_normal(&(v->fmtext), "\n"); |
---|
| 43 | } |
---|
[3e55268] | 44 | owl_free(text); |
---|
[7d4fbcd] | 45 | v->textlines=owl_fmtext_num_lines(&(v->fmtext)); |
---|
| 46 | v->topline=0; |
---|
| 47 | v->rightshift=0; |
---|
[68f63a2] | 48 | |
---|
| 49 | owl_viewwin_set_window(v, win); |
---|
[7d4fbcd] | 50 | } |
---|
| 51 | |
---|
[68f63a2] | 52 | void owl_viewwin_set_window(owl_viewwin *v, owl_window *w) |
---|
[b2b0773] | 53 | { |
---|
[68f63a2] | 54 | if (v->window) { |
---|
[7a6e6c7] | 55 | g_signal_handler_disconnect(v->window, v->sig_redraw_id); |
---|
[68f63a2] | 56 | } |
---|
| 57 | v->window = w; |
---|
| 58 | if (w) { |
---|
[7a6e6c7] | 59 | v->sig_redraw_id = g_signal_connect(w, "redraw", G_CALLBACK(owl_viewwin_redisplay), v); |
---|
[68f63a2] | 60 | } |
---|
[7d4fbcd] | 61 | } |
---|
| 62 | |
---|
[afbf668] | 63 | void owl_viewwin_set_onclose_hook(owl_viewwin *v, void (*onclose_hook) (owl_viewwin *vwin, void *data), void *onclose_hook_data) { |
---|
| 64 | v->onclose_hook = onclose_hook; |
---|
| 65 | v->onclose_hook_data = onclose_hook_data; |
---|
| 66 | } |
---|
| 67 | |
---|
[b2b0773] | 68 | /* regenerate text on the curses window. */ |
---|
[68f63a2] | 69 | void owl_viewwin_redisplay(owl_window *w, WINDOW *curswin, void *user_data) |
---|
[b2b0773] | 70 | { |
---|
[7d4fbcd] | 71 | owl_fmtext fm1, fm2; |
---|
[68f63a2] | 72 | owl_viewwin *v = user_data; |
---|
[c447d9c] | 73 | int winlines, wincols; |
---|
| 74 | |
---|
| 75 | owl_window_get_position(w, &winlines, &wincols, 0, 0); |
---|
[7d4fbcd] | 76 | |
---|
[68f63a2] | 77 | werase(curswin); |
---|
| 78 | wmove(curswin, 0, 0); |
---|
[7d4fbcd] | 79 | |
---|
[af2ca19] | 80 | owl_fmtext_init_null(&fm1); |
---|
| 81 | owl_fmtext_init_null(&fm2); |
---|
| 82 | |
---|
[c447d9c] | 83 | owl_fmtext_truncate_lines(&(v->fmtext), v->topline, winlines-BOTTOM_OFFSET, &fm1); |
---|
| 84 | owl_fmtext_truncate_cols(&fm1, v->rightshift, wincols-1+v->rightshift, &fm2); |
---|
[7d4fbcd] | 85 | |
---|
[68f63a2] | 86 | owl_fmtext_curs_waddstr_without_search(&fm2, curswin); |
---|
[7d4fbcd] | 87 | |
---|
| 88 | /* print the message at the bottom */ |
---|
[c447d9c] | 89 | wmove(curswin, winlines-1, 0); |
---|
[68f63a2] | 90 | wattrset(curswin, A_REVERSE); |
---|
[c447d9c] | 91 | if (v->textlines - v->topline > winlines-BOTTOM_OFFSET) { |
---|
[68f63a2] | 92 | waddstr(curswin, "--More-- (Space to see more, 'q' to quit)"); |
---|
[7d4fbcd] | 93 | } else { |
---|
[68f63a2] | 94 | waddstr(curswin, "--End-- (Press 'q' to quit)"); |
---|
[7d4fbcd] | 95 | } |
---|
[68f63a2] | 96 | wattroff(curswin, A_REVERSE); |
---|
[7d4fbcd] | 97 | |
---|
[7ab0020] | 98 | owl_fmtext_cleanup(&fm1); |
---|
| 99 | owl_fmtext_cleanup(&fm2); |
---|
[7d4fbcd] | 100 | } |
---|
| 101 | |
---|
[b2b0773] | 102 | void owl_viewwin_pagedown(owl_viewwin *v) |
---|
| 103 | { |
---|
[c447d9c] | 104 | int winlines; |
---|
| 105 | owl_window_get_position(v->window, &winlines, 0, 0, 0); |
---|
| 106 | v->topline+=winlines - BOTTOM_OFFSET; |
---|
| 107 | if ( (v->topline+winlines-BOTTOM_OFFSET) > v->textlines) { |
---|
| 108 | v->topline = v->textlines - winlines + BOTTOM_OFFSET; |
---|
[7d4fbcd] | 109 | } |
---|
[68f63a2] | 110 | owl_window_dirty(v->window); |
---|
[7d4fbcd] | 111 | } |
---|
| 112 | |
---|
[b2b0773] | 113 | void owl_viewwin_linedown(owl_viewwin *v) |
---|
| 114 | { |
---|
[c447d9c] | 115 | int winlines; |
---|
| 116 | owl_window_get_position(v->window, &winlines, 0, 0, 0); |
---|
[7d4fbcd] | 117 | v->topline++; |
---|
[c447d9c] | 118 | if ( (v->topline+winlines-BOTTOM_OFFSET) > v->textlines) { |
---|
| 119 | v->topline = v->textlines - winlines + BOTTOM_OFFSET; |
---|
[7d4fbcd] | 120 | } |
---|
[68f63a2] | 121 | owl_window_dirty(v->window); |
---|
[7d4fbcd] | 122 | } |
---|
| 123 | |
---|
[b2b0773] | 124 | void owl_viewwin_pageup(owl_viewwin *v) |
---|
| 125 | { |
---|
[c447d9c] | 126 | int winlines; |
---|
| 127 | owl_window_get_position(v->window, &winlines, 0, 0, 0); |
---|
| 128 | v->topline-=winlines; |
---|
[7d4fbcd] | 129 | if (v->topline<0) v->topline=0; |
---|
[68f63a2] | 130 | owl_window_dirty(v->window); |
---|
[7d4fbcd] | 131 | } |
---|
| 132 | |
---|
[b2b0773] | 133 | void owl_viewwin_lineup(owl_viewwin *v) |
---|
| 134 | { |
---|
[7d4fbcd] | 135 | v->topline--; |
---|
| 136 | if (v->topline<0) v->topline=0; |
---|
[68f63a2] | 137 | owl_window_dirty(v->window); |
---|
[7d4fbcd] | 138 | } |
---|
| 139 | |
---|
[b2b0773] | 140 | void owl_viewwin_right(owl_viewwin *v, int n) |
---|
| 141 | { |
---|
[7d4fbcd] | 142 | v->rightshift+=n; |
---|
[68f63a2] | 143 | owl_window_dirty(v->window); |
---|
[7d4fbcd] | 144 | } |
---|
| 145 | |
---|
[b2b0773] | 146 | void owl_viewwin_left(owl_viewwin *v, int n) |
---|
| 147 | { |
---|
[7d4fbcd] | 148 | v->rightshift-=n; |
---|
| 149 | if (v->rightshift<0) v->rightshift=0; |
---|
[68f63a2] | 150 | owl_window_dirty(v->window); |
---|
[7d4fbcd] | 151 | } |
---|
| 152 | |
---|
[b2b0773] | 153 | void owl_viewwin_top(owl_viewwin *v) |
---|
| 154 | { |
---|
[7d4fbcd] | 155 | v->topline=0; |
---|
| 156 | v->rightshift=0; |
---|
[68f63a2] | 157 | owl_window_dirty(v->window); |
---|
[7d4fbcd] | 158 | } |
---|
| 159 | |
---|
[b2b0773] | 160 | void owl_viewwin_bottom(owl_viewwin *v) |
---|
| 161 | { |
---|
[c447d9c] | 162 | int winlines; |
---|
| 163 | owl_window_get_position(v->window, &winlines, 0, 0, 0); |
---|
| 164 | v->topline = v->textlines - winlines + BOTTOM_OFFSET; |
---|
[68f63a2] | 165 | owl_window_dirty(v->window); |
---|
[7d4fbcd] | 166 | } |
---|
| 167 | |
---|
[963b471] | 168 | void owl_viewwin_cleanup(owl_viewwin *v) |
---|
[b2b0773] | 169 | { |
---|
[5f7eadf] | 170 | owl_viewwin_set_window(v, NULL); |
---|
[afbf668] | 171 | if (v->onclose_hook) { |
---|
| 172 | v->onclose_hook(v, v->onclose_hook_data); |
---|
[8721756] | 173 | v->onclose_hook = NULL; |
---|
| 174 | v->onclose_hook_data = NULL; |
---|
[afbf668] | 175 | } |
---|
[7ab0020] | 176 | owl_fmtext_cleanup(&(v->fmtext)); |
---|
[7d4fbcd] | 177 | } |
---|