OpenWrt – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | /* |
2 | * checklist.c -- implements the checklist box |
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3 | * |
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4 | * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) |
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5 | * Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension |
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6 | * Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two |
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7 | * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) |
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8 | * |
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9 | * This program is free software; you can redistribute it and/or |
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10 | * modify it under the terms of the GNU General Public License |
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11 | * as published by the Free Software Foundation; either version 2 |
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12 | * of the License, or (at your option) any later version. |
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13 | * |
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14 | * This program is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this program; if not, write to the Free Software |
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21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | */ |
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23 | |||
24 | #include "dialog.h" |
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25 | |||
26 | static int list_width, check_x, item_x; |
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27 | |||
28 | /* |
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29 | * Print list item |
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30 | */ |
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31 | static void print_item(WINDOW * win, int choice, int selected) |
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32 | { |
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33 | int i; |
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34 | char *list_item = malloc(list_width + 1); |
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35 | |||
36 | strncpy(list_item, item_str(), list_width - item_x); |
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37 | list_item[list_width - item_x] = '\0'; |
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38 | |||
39 | /* Clear 'residue' of last item */ |
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40 | wattrset(win, dlg.menubox.atr); |
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41 | wmove(win, choice, 0); |
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42 | for (i = 0; i < list_width; i++) |
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43 | waddch(win, ' '); |
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44 | |||
45 | wmove(win, choice, check_x); |
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46 | wattrset(win, selected ? dlg.check_selected.atr |
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47 | : dlg.check.atr); |
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48 | if (!item_is_tag(':')) |
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49 | wprintw(win, "(%c)", item_is_tag('X') ? 'X' : ' '); |
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50 | |||
51 | wattrset(win, selected ? dlg.tag_selected.atr : dlg.tag.atr); |
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52 | mvwaddch(win, choice, item_x, list_item[0]); |
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53 | wattrset(win, selected ? dlg.item_selected.atr : dlg.item.atr); |
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54 | waddstr(win, list_item + 1); |
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55 | if (selected) { |
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56 | wmove(win, choice, check_x + 1); |
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57 | wrefresh(win); |
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58 | } |
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59 | free(list_item); |
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60 | } |
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61 | |||
62 | /* |
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63 | * Print the scroll indicators. |
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64 | */ |
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65 | static void print_arrows(WINDOW * win, int choice, int item_no, int scroll, |
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66 | int y, int x, int height) |
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67 | { |
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68 | wmove(win, y, x); |
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69 | |||
70 | if (scroll > 0) { |
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71 | wattrset(win, dlg.uarrow.atr); |
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72 | waddch(win, ACS_UARROW); |
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73 | waddstr(win, "(-)"); |
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74 | } else { |
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75 | wattrset(win, dlg.menubox.atr); |
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76 | waddch(win, ACS_HLINE); |
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77 | waddch(win, ACS_HLINE); |
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78 | waddch(win, ACS_HLINE); |
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79 | waddch(win, ACS_HLINE); |
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80 | } |
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81 | |||
82 | y = y + height + 1; |
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83 | wmove(win, y, x); |
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84 | |||
85 | if ((height < item_no) && (scroll + choice < item_no - 1)) { |
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86 | wattrset(win, dlg.darrow.atr); |
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87 | waddch(win, ACS_DARROW); |
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88 | waddstr(win, "(+)"); |
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89 | } else { |
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90 | wattrset(win, dlg.menubox_border.atr); |
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91 | waddch(win, ACS_HLINE); |
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92 | waddch(win, ACS_HLINE); |
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93 | waddch(win, ACS_HLINE); |
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94 | waddch(win, ACS_HLINE); |
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95 | } |
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96 | } |
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97 | |||
98 | /* |
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99 | * Display the termination buttons |
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100 | */ |
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101 | static void print_buttons(WINDOW * dialog, int height, int width, int selected) |
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102 | { |
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103 | int x = width / 2 - 11; |
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104 | int y = height - 2; |
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105 | |||
106 | print_button(dialog, gettext("Select"), y, x, selected == 0); |
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107 | print_button(dialog, gettext(" Help "), y, x + 14, selected == 1); |
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108 | |||
109 | wmove(dialog, y, x + 1 + 14 * selected); |
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110 | wrefresh(dialog); |
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111 | } |
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112 | |||
113 | /* |
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114 | * Display a dialog box with a list of options that can be turned on or off |
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115 | * in the style of radiolist (only one option turned on at a time). |
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116 | */ |
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117 | int dialog_checklist(const char *title, const char *prompt, int height, |
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118 | int width, int list_height) |
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119 | { |
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120 | int i, x, y, box_x, box_y; |
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121 | int key = 0, button = 0, choice = 0, scroll = 0, max_choice; |
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122 | WINDOW *dialog, *list; |
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123 | |||
124 | /* which item to highlight */ |
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125 | item_foreach() { |
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126 | if (item_is_tag('X')) |
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127 | choice = item_n(); |
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128 | if (item_is_selected()) { |
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129 | choice = item_n(); |
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130 | break; |
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131 | } |
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132 | } |
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133 | |||
134 | do_resize: |
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135 | if (getmaxy(stdscr) < (height + CHECKLIST_HEIGTH_MIN)) |
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136 | return -ERRDISPLAYTOOSMALL; |
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137 | if (getmaxx(stdscr) < (width + CHECKLIST_WIDTH_MIN)) |
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138 | return -ERRDISPLAYTOOSMALL; |
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139 | |||
140 | max_choice = MIN(list_height, item_count()); |
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141 | |||
142 | /* center dialog box on screen */ |
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143 | x = (getmaxx(stdscr) - width) / 2; |
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144 | y = (getmaxy(stdscr) - height) / 2; |
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145 | |||
146 | draw_shadow(stdscr, y, x, height, width); |
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147 | |||
148 | dialog = newwin(height, width, y, x); |
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149 | keypad(dialog, TRUE); |
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150 | |||
151 | draw_box(dialog, 0, 0, height, width, |
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152 | dlg.dialog.atr, dlg.border.atr); |
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153 | wattrset(dialog, dlg.border.atr); |
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154 | mvwaddch(dialog, height - 3, 0, ACS_LTEE); |
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155 | for (i = 0; i < width - 2; i++) |
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156 | waddch(dialog, ACS_HLINE); |
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157 | wattrset(dialog, dlg.dialog.atr); |
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158 | waddch(dialog, ACS_RTEE); |
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159 | |||
160 | print_title(dialog, title, width); |
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161 | |||
162 | wattrset(dialog, dlg.dialog.atr); |
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163 | print_autowrap(dialog, prompt, width - 2, 1, 3); |
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164 | |||
165 | list_width = width - 6; |
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166 | box_y = height - list_height - 5; |
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167 | box_x = (width - list_width) / 2 - 1; |
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168 | |||
169 | /* create new window for the list */ |
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170 | list = subwin(dialog, list_height, list_width, y + box_y + 1, |
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171 | x + box_x + 1); |
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172 | |||
173 | keypad(list, TRUE); |
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174 | |||
175 | /* draw a box around the list items */ |
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176 | draw_box(dialog, box_y, box_x, list_height + 2, list_width + 2, |
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177 | dlg.menubox_border.atr, dlg.menubox.atr); |
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178 | |||
179 | /* Find length of longest item in order to center checklist */ |
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180 | check_x = 0; |
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181 | item_foreach() |
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182 | check_x = MAX(check_x, strlen(item_str()) + 4); |
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183 | check_x = MIN(check_x, list_width); |
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184 | |||
185 | check_x = (list_width - check_x) / 2; |
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186 | item_x = check_x + 4; |
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187 | |||
188 | if (choice >= list_height) { |
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189 | scroll = choice - list_height + 1; |
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190 | choice -= scroll; |
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191 | } |
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192 | |||
193 | /* Print the list */ |
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194 | for (i = 0; i < max_choice; i++) { |
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195 | item_set(scroll + i); |
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196 | print_item(list, i, i == choice); |
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197 | } |
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198 | |||
199 | print_arrows(dialog, choice, item_count(), scroll, |
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200 | box_y, box_x + check_x + 5, list_height); |
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201 | |||
202 | print_buttons(dialog, height, width, 0); |
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203 | |||
204 | wnoutrefresh(dialog); |
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205 | wnoutrefresh(list); |
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206 | doupdate(); |
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207 | |||
208 | while (key != KEY_ESC) { |
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209 | key = wgetch(dialog); |
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210 | |||
211 | for (i = 0; i < max_choice; i++) { |
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212 | item_set(i + scroll); |
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213 | if (toupper(key) == toupper(item_str()[0])) |
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214 | break; |
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215 | } |
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216 | |||
217 | if (i < max_choice || key == KEY_UP || key == KEY_DOWN || |
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218 | key == '+' || key == '-') { |
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219 | if (key == KEY_UP || key == '-') { |
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220 | if (!choice) { |
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221 | if (!scroll) |
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222 | continue; |
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223 | /* Scroll list down */ |
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224 | if (list_height > 1) { |
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225 | /* De-highlight current first item */ |
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226 | item_set(scroll); |
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227 | print_item(list, 0, FALSE); |
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228 | scrollok(list, TRUE); |
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229 | wscrl(list, -1); |
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230 | scrollok(list, FALSE); |
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231 | } |
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232 | scroll--; |
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233 | item_set(scroll); |
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234 | print_item(list, 0, TRUE); |
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235 | print_arrows(dialog, choice, item_count(), |
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236 | scroll, box_y, box_x + check_x + 5, list_height); |
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237 | |||
238 | wnoutrefresh(dialog); |
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239 | wrefresh(list); |
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240 | |||
241 | continue; /* wait for another key press */ |
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242 | } else |
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243 | i = choice - 1; |
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244 | } else if (key == KEY_DOWN || key == '+') { |
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245 | if (choice == max_choice - 1) { |
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246 | if (scroll + choice >= item_count() - 1) |
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247 | continue; |
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248 | /* Scroll list up */ |
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249 | if (list_height > 1) { |
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250 | /* De-highlight current last item before scrolling up */ |
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251 | item_set(scroll + max_choice - 1); |
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252 | print_item(list, |
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253 | max_choice - 1, |
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254 | FALSE); |
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255 | scrollok(list, TRUE); |
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256 | wscrl(list, 1); |
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257 | scrollok(list, FALSE); |
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258 | } |
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259 | scroll++; |
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260 | item_set(scroll + max_choice - 1); |
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261 | print_item(list, max_choice - 1, TRUE); |
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262 | |||
263 | print_arrows(dialog, choice, item_count(), |
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264 | scroll, box_y, box_x + check_x + 5, list_height); |
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265 | |||
266 | wnoutrefresh(dialog); |
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267 | wrefresh(list); |
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268 | |||
269 | continue; /* wait for another key press */ |
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270 | } else |
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271 | i = choice + 1; |
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272 | } |
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273 | if (i != choice) { |
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274 | /* De-highlight current item */ |
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275 | item_set(scroll + choice); |
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276 | print_item(list, choice, FALSE); |
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277 | /* Highlight new item */ |
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278 | choice = i; |
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279 | item_set(scroll + choice); |
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280 | print_item(list, choice, TRUE); |
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281 | wnoutrefresh(dialog); |
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282 | wrefresh(list); |
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283 | } |
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284 | continue; /* wait for another key press */ |
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285 | } |
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286 | switch (key) { |
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287 | case 'H': |
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288 | case 'h': |
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289 | case '?': |
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290 | button = 1; |
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291 | /* fall-through */ |
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292 | case 'S': |
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293 | case 's': |
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294 | case ' ': |
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295 | case '\n': |
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296 | item_foreach() |
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297 | item_set_selected(0); |
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298 | item_set(scroll + choice); |
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299 | item_set_selected(1); |
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300 | delwin(list); |
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301 | delwin(dialog); |
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302 | return button; |
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303 | case TAB: |
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304 | case KEY_LEFT: |
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305 | case KEY_RIGHT: |
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306 | button = ((key == KEY_LEFT ? --button : ++button) < 0) |
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307 | ? 1 : (button > 1 ? 0 : button); |
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308 | |||
309 | print_buttons(dialog, height, width, button); |
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310 | wrefresh(dialog); |
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311 | break; |
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312 | case 'X': |
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313 | case 'x': |
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314 | key = KEY_ESC; |
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315 | break; |
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316 | case KEY_ESC: |
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317 | key = on_key_esc(dialog); |
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318 | break; |
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319 | case KEY_RESIZE: |
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320 | delwin(list); |
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321 | delwin(dialog); |
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322 | on_key_resize(); |
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323 | goto do_resize; |
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324 | } |
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325 | |||
326 | /* Now, update everything... */ |
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327 | doupdate(); |
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328 | } |
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329 | delwin(list); |
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330 | delwin(dialog); |
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331 | return key; /* ESC pressed */ |
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332 | } |