Mercurial > hg > toybox
annotate kconfig/lxdialog/inputbox.c @ 678:ae3455c2989b
Update roadmap/status with new toolbox analysis based on android system/core git repo.
author | Rob Landley <rob@landley.net> |
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date | Tue, 16 Oct 2012 17:09:30 -0500 |
parents | 4d21d59f3206 |
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rev | line source |
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1 /* |
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2 * inputbox.c -- implements the input box |
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3 * |
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4 * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) |
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5 * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) |
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6 * |
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7 * This program is free software; you can redistribute it and/or |
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8 * modify it under the terms of the GNU General Public License |
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9 * as published by the Free Software Foundation; either version 2 |
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10 * of the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, |
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 * GNU General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU General Public License |
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18 * along with this program; if not, write to the Free Software |
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19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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20 */ |
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21 |
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22 #include "dialog.h" |
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23 |
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24 char dialog_input_result[MAX_LEN + 1]; |
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25 |
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26 /* |
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27 * Print the termination buttons |
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28 */ |
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29 static void print_buttons(WINDOW * dialog, int height, int width, int selected) |
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30 { |
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31 int x = width / 2 - 11; |
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32 int y = height - 2; |
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33 |
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34 print_button(dialog, " Ok ", y, x, selected == 0); |
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35 print_button(dialog, " Help ", y, x + 14, selected == 1); |
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36 |
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37 wmove(dialog, y, x + 1 + 14 * selected); |
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38 wrefresh(dialog); |
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39 } |
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40 |
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41 /* |
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42 * Display a dialog box for inputing a string |
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43 */ |
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44 int dialog_inputbox(const char *title, const char *prompt, int height, int width, |
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45 const char *init) |
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46 { |
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47 int i, x, y, box_y, box_x, box_width; |
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48 int input_x = 0, scroll = 0, key = 0, button = -1; |
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49 char *instr = dialog_input_result; |
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50 WINDOW *dialog; |
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51 |
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52 if (!init) |
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53 instr[0] = '\0'; |
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54 else |
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55 strcpy(instr, init); |
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56 |
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57 do_resize: |
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58 if (getmaxy(stdscr) <= (height - 2)) |
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59 return -ERRDISPLAYTOOSMALL; |
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60 if (getmaxx(stdscr) <= (width - 2)) |
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61 return -ERRDISPLAYTOOSMALL; |
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62 |
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63 /* center dialog box on screen */ |
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64 x = (COLS - width) / 2; |
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65 y = (LINES - height) / 2; |
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66 |
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67 draw_shadow(stdscr, y, x, height, width); |
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68 |
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69 dialog = newwin(height, width, y, x); |
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70 keypad(dialog, TRUE); |
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71 |
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72 draw_box(dialog, 0, 0, height, width, |
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73 dlg.dialog.atr, dlg.border.atr); |
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74 wattrset(dialog, dlg.border.atr); |
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75 mvwaddch(dialog, height - 3, 0, ACS_LTEE); |
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76 for (i = 0; i < width - 2; i++) |
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77 waddch(dialog, ACS_HLINE); |
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78 wattrset(dialog, dlg.dialog.atr); |
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79 waddch(dialog, ACS_RTEE); |
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80 |
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81 print_title(dialog, title, width); |
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82 |
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83 wattrset(dialog, dlg.dialog.atr); |
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84 print_autowrap(dialog, prompt, width - 2, 1, 3); |
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85 |
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86 /* Draw the input field box */ |
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87 box_width = width - 6; |
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88 getyx(dialog, y, x); |
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89 box_y = y + 2; |
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90 box_x = (width - box_width) / 2; |
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91 draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2, |
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92 dlg.border.atr, dlg.dialog.atr); |
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93 |
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94 print_buttons(dialog, height, width, 0); |
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95 |
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96 /* Set up the initial value */ |
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97 wmove(dialog, box_y, box_x); |
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98 wattrset(dialog, dlg.inputbox.atr); |
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99 |
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100 input_x = strlen(instr); |
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101 |
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102 if (input_x >= box_width) { |
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103 scroll = input_x - box_width + 1; |
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104 input_x = box_width - 1; |
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105 for (i = 0; i < box_width - 1; i++) |
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106 waddch(dialog, instr[scroll + i]); |
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107 } else { |
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108 waddstr(dialog, instr); |
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109 } |
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110 |
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111 wmove(dialog, box_y, box_x + input_x); |
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112 |
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113 wrefresh(dialog); |
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114 |
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115 while (key != KEY_ESC) { |
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116 key = wgetch(dialog); |
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117 |
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118 if (button == -1) { /* Input box selected */ |
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119 switch (key) { |
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120 case TAB: |
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121 case KEY_UP: |
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122 case KEY_DOWN: |
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123 break; |
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124 case KEY_LEFT: |
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125 continue; |
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126 case KEY_RIGHT: |
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127 continue; |
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128 case KEY_BACKSPACE: |
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129 case 127: |
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130 if (input_x || scroll) { |
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131 wattrset(dialog, dlg.inputbox.atr); |
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132 if (!input_x) { |
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133 scroll = scroll < box_width - 1 ? 0 : scroll - (box_width - 1); |
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134 wmove(dialog, box_y, box_x); |
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135 for (i = 0; i < box_width; i++) |
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136 waddch(dialog, |
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137 instr[scroll + input_x + i] ? |
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138 instr[scroll + input_x + i] : ' '); |
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139 input_x = strlen(instr) - scroll; |
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140 } else |
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141 input_x--; |
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142 instr[scroll + input_x] = '\0'; |
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143 mvwaddch(dialog, box_y, input_x + box_x, ' '); |
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144 wmove(dialog, box_y, input_x + box_x); |
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145 wrefresh(dialog); |
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146 } |
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147 continue; |
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148 default: |
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149 if (key < 0x100 && isprint(key)) { |
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150 if (scroll + input_x < MAX_LEN) { |
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151 wattrset(dialog, dlg.inputbox.atr); |
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152 instr[scroll + input_x] = key; |
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153 instr[scroll + input_x + 1] = '\0'; |
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154 if (input_x == box_width - 1) { |
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155 scroll++; |
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156 wmove(dialog, box_y, box_x); |
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157 for (i = 0; i < box_width - 1; i++) |
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158 waddch(dialog, instr [scroll + i]); |
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159 } else { |
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landley@driftwood
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160 wmove(dialog, box_y, input_x++ + box_x); |
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landley@driftwood
parents:
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161 waddch(dialog, key); |
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landley@driftwood
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162 } |
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parents:
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163 wrefresh(dialog); |
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landley@driftwood
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164 } else |
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165 flash(); /* Alarm user about overflow */ |
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landley@driftwood
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166 continue; |
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parents:
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167 } |
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landley@driftwood
parents:
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168 } |
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landley@driftwood
parents:
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|
169 } |
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landley@driftwood
parents:
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|
170 switch (key) { |
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landley@driftwood
parents:
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|
171 case 'O': |
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landley@driftwood
parents:
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|
172 case 'o': |
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landley@driftwood
parents:
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|
173 delwin(dialog); |
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landley@driftwood
parents:
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|
174 return 0; |
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landley@driftwood
parents:
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|
175 case 'H': |
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landley@driftwood
parents:
diff
changeset
|
176 case 'h': |
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landley@driftwood
parents:
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|
177 delwin(dialog); |
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landley@driftwood
parents:
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|
178 return 1; |
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landley@driftwood
parents:
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|
179 case KEY_UP: |
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landley@driftwood
parents:
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|
180 case KEY_LEFT: |
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landley@driftwood
parents:
diff
changeset
|
181 switch (button) { |
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landley@driftwood
parents:
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|
182 case -1: |
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landley@driftwood
parents:
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|
183 button = 1; /* Indicates "Cancel" button is selected */ |
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parents:
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|
184 print_buttons(dialog, height, width, 1); |
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landley@driftwood
parents:
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|
185 break; |
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landley@driftwood
parents:
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|
186 case 0: |
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landley@driftwood
parents:
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|
187 button = -1; /* Indicates input box is selected */ |
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landley@driftwood
parents:
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changeset
|
188 print_buttons(dialog, height, width, 0); |
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Add menuconfig, plus some basic Config info, lots of which is just future
landley@driftwood
parents:
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changeset
|
189 wmove(dialog, box_y, box_x + input_x); |
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landley@driftwood
parents:
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changeset
|
190 wrefresh(dialog); |
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landley@driftwood
parents:
diff
changeset
|
191 break; |
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landley@driftwood
parents:
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changeset
|
192 case 1: |
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landley@driftwood
parents:
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193 button = 0; /* Indicates "OK" button is selected */ |
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parents:
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|
194 print_buttons(dialog, height, width, 0); |
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landley@driftwood
parents:
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changeset
|
195 break; |
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landley@driftwood
parents:
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|
196 } |
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landley@driftwood
parents:
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|
197 break; |
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landley@driftwood
parents:
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changeset
|
198 case TAB: |
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landley@driftwood
parents:
diff
changeset
|
199 case KEY_DOWN: |
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landley@driftwood
parents:
diff
changeset
|
200 case KEY_RIGHT: |
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landley@driftwood
parents:
diff
changeset
|
201 switch (button) { |
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landley@driftwood
parents:
diff
changeset
|
202 case -1: |
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landley@driftwood
parents:
diff
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|
203 button = 0; /* Indicates "OK" button is selected */ |
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landley@driftwood
parents:
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changeset
|
204 print_buttons(dialog, height, width, 0); |
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landley@driftwood
parents:
diff
changeset
|
205 break; |
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landley@driftwood
parents:
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|
206 case 0: |
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landley@driftwood
parents:
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|
207 button = 1; /* Indicates "Cancel" button is selected */ |
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landley@driftwood
parents:
diff
changeset
|
208 print_buttons(dialog, height, width, 1); |
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landley@driftwood
parents:
diff
changeset
|
209 break; |
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landley@driftwood
parents:
diff
changeset
|
210 case 1: |
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landley@driftwood
parents:
diff
changeset
|
211 button = -1; /* Indicates input box is selected */ |
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landley@driftwood
parents:
diff
changeset
|
212 print_buttons(dialog, height, width, 0); |
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landley@driftwood
parents:
diff
changeset
|
213 wmove(dialog, box_y, box_x + input_x); |
4d21d59f3206
Add menuconfig, plus some basic Config info, lots of which is just future
landley@driftwood
parents:
diff
changeset
|
214 wrefresh(dialog); |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
215 break; |
4d21d59f3206
Add menuconfig, plus some basic Config info, lots of which is just future
landley@driftwood
parents:
diff
changeset
|
216 } |
4d21d59f3206
Add menuconfig, plus some basic Config info, lots of which is just future
landley@driftwood
parents:
diff
changeset
|
217 break; |
4d21d59f3206
Add menuconfig, plus some basic Config info, lots of which is just future
landley@driftwood
parents:
diff
changeset
|
218 case ' ': |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
219 case '\n': |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
220 delwin(dialog); |
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landley@driftwood
parents:
diff
changeset
|
221 return (button == -1 ? 0 : button); |
4d21d59f3206
Add menuconfig, plus some basic Config info, lots of which is just future
landley@driftwood
parents:
diff
changeset
|
222 case 'X': |
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landley@driftwood
parents:
diff
changeset
|
223 case 'x': |
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landley@driftwood
parents:
diff
changeset
|
224 key = KEY_ESC; |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
225 break; |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
226 case KEY_ESC: |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
227 key = on_key_esc(dialog); |
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landley@driftwood
parents:
diff
changeset
|
228 break; |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
229 case KEY_RESIZE: |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
230 delwin(dialog); |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
231 on_key_resize(); |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
232 goto do_resize; |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
233 } |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
234 } |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
235 |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
236 delwin(dialog); |
4d21d59f3206
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landley@driftwood
parents:
diff
changeset
|
237 return KEY_ESC; /* ESC pressed */ |
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landley@driftwood
parents:
diff
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|
238 } |