OpenWrt – Blame information for rev 4
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Rev | Author | Line No. | Line |
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1 | office | 1 | /* |
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 | |||
22 | #include "dialog.h" |
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23 | |||
24 | char dialog_input_result[MAX_LEN + 1]; |
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25 | |||
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 | |||
34 | print_button(dialog, gettext(" Ok "), y, x, selected == 0); |
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35 | print_button(dialog, gettext(" Help "), y, x + 14, selected == 1); |
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36 | |||
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 | |||
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, key = 0, button = -1; |
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49 | int show_x, len, pos; |
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50 | char *instr = dialog_input_result; |
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51 | WINDOW *dialog; |
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52 | |||
53 | if (!init) |
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54 | instr[0] = '\0'; |
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55 | else |
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56 | strcpy(instr, init); |
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57 | |||
58 | do_resize: |
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59 | if (getmaxy(stdscr) <= (height - INPUTBOX_HEIGTH_MIN)) |
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60 | return -ERRDISPLAYTOOSMALL; |
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61 | if (getmaxx(stdscr) <= (width - INPUTBOX_WIDTH_MIN)) |
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62 | return -ERRDISPLAYTOOSMALL; |
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63 | |||
64 | /* center dialog box on screen */ |
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65 | x = (getmaxx(stdscr) - width) / 2; |
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66 | y = (getmaxy(stdscr) - height) / 2; |
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67 | |||
68 | draw_shadow(stdscr, y, x, height, width); |
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69 | |||
70 | dialog = newwin(height, width, y, x); |
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71 | keypad(dialog, TRUE); |
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72 | |||
73 | draw_box(dialog, 0, 0, height, width, |
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74 | dlg.dialog.atr, dlg.border.atr); |
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75 | wattrset(dialog, dlg.border.atr); |
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76 | mvwaddch(dialog, height - 3, 0, ACS_LTEE); |
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77 | for (i = 0; i < width - 2; i++) |
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78 | waddch(dialog, ACS_HLINE); |
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79 | wattrset(dialog, dlg.dialog.atr); |
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80 | waddch(dialog, ACS_RTEE); |
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81 | |||
82 | print_title(dialog, title, width); |
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83 | |||
84 | wattrset(dialog, dlg.dialog.atr); |
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85 | print_autowrap(dialog, prompt, width - 2, 1, 3); |
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86 | |||
87 | /* Draw the input field box */ |
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88 | box_width = width - 6; |
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89 | getyx(dialog, y, x); |
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90 | box_y = y + 2; |
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91 | box_x = (width - box_width) / 2; |
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92 | draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2, |
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93 | dlg.dialog.atr, dlg.border.atr); |
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94 | |||
95 | print_buttons(dialog, height, width, 0); |
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96 | |||
97 | /* Set up the initial value */ |
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98 | wmove(dialog, box_y, box_x); |
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99 | wattrset(dialog, dlg.inputbox.atr); |
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100 | |||
101 | len = strlen(instr); |
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102 | pos = len; |
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103 | |||
104 | if (len >= box_width) { |
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105 | show_x = len - box_width + 1; |
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106 | input_x = box_width - 1; |
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107 | for (i = 0; i < box_width - 1; i++) |
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108 | waddch(dialog, instr[show_x + i]); |
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109 | } else { |
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110 | show_x = 0; |
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111 | input_x = len; |
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112 | waddstr(dialog, instr); |
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113 | } |
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114 | |||
115 | wmove(dialog, box_y, box_x + input_x); |
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116 | |||
117 | wrefresh(dialog); |
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118 | |||
119 | while (key != KEY_ESC) { |
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120 | key = wgetch(dialog); |
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121 | |||
122 | if (button == -1) { /* Input box selected */ |
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123 | switch (key) { |
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124 | case TAB: |
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125 | case KEY_UP: |
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126 | case KEY_DOWN: |
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127 | break; |
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128 | case KEY_BACKSPACE: |
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129 | case 127: |
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130 | if (pos) { |
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131 | wattrset(dialog, dlg.inputbox.atr); |
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132 | if (input_x == 0) { |
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133 | show_x--; |
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134 | } else |
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135 | input_x--; |
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136 | |||
137 | if (pos < len) { |
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138 | for (i = pos - 1; i < len; i++) { |
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139 | instr[i] = instr[i+1]; |
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140 | } |
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141 | } |
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142 | |||
143 | pos--; |
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144 | len--; |
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145 | instr[len] = '\0'; |
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146 | wmove(dialog, box_y, box_x); |
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147 | for (i = 0; i < box_width; i++) { |
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148 | if (!instr[show_x + i]) { |
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149 | waddch(dialog, ' '); |
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150 | break; |
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151 | } |
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152 | waddch(dialog, instr[show_x + i]); |
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153 | } |
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154 | wmove(dialog, box_y, input_x + box_x); |
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155 | wrefresh(dialog); |
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156 | } |
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157 | continue; |
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158 | case KEY_LEFT: |
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159 | if (pos > 0) { |
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160 | if (input_x > 0) { |
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161 | wmove(dialog, box_y, --input_x + box_x); |
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162 | } else if (input_x == 0) { |
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163 | show_x--; |
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164 | wmove(dialog, box_y, box_x); |
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165 | for (i = 0; i < box_width; i++) { |
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166 | if (!instr[show_x + i]) { |
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167 | waddch(dialog, ' '); |
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168 | break; |
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169 | } |
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170 | waddch(dialog, instr[show_x + i]); |
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171 | } |
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172 | wmove(dialog, box_y, box_x); |
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173 | } |
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174 | pos--; |
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175 | } |
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176 | continue; |
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177 | case KEY_RIGHT: |
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178 | if (pos < len) { |
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179 | if (input_x < box_width - 1) { |
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180 | wmove(dialog, box_y, ++input_x + box_x); |
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181 | } else if (input_x == box_width - 1) { |
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182 | show_x++; |
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183 | wmove(dialog, box_y, box_x); |
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184 | for (i = 0; i < box_width; i++) { |
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185 | if (!instr[show_x + i]) { |
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186 | waddch(dialog, ' '); |
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187 | break; |
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188 | } |
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189 | waddch(dialog, instr[show_x + i]); |
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190 | } |
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191 | wmove(dialog, box_y, input_x + box_x); |
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192 | } |
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193 | pos++; |
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194 | } |
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195 | continue; |
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196 | default: |
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197 | if (key < 0x100 && isprint(key)) { |
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198 | if (len < MAX_LEN) { |
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199 | wattrset(dialog, dlg.inputbox.atr); |
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200 | if (pos < len) { |
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201 | for (i = len; i > pos; i--) |
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202 | instr[i] = instr[i-1]; |
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203 | instr[pos] = key; |
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204 | } else { |
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205 | instr[len] = key; |
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206 | } |
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207 | pos++; |
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208 | len++; |
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209 | instr[len] = '\0'; |
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210 | |||
211 | if (input_x == box_width - 1) { |
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212 | show_x++; |
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213 | } else { |
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214 | input_x++; |
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215 | } |
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216 | |||
217 | wmove(dialog, box_y, box_x); |
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218 | for (i = 0; i < box_width; i++) { |
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219 | if (!instr[show_x + i]) { |
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220 | waddch(dialog, ' '); |
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221 | break; |
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222 | } |
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223 | waddch(dialog, instr[show_x + i]); |
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224 | } |
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225 | wmove(dialog, box_y, input_x + box_x); |
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226 | wrefresh(dialog); |
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227 | } else |
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228 | flash(); /* Alarm user about overflow */ |
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229 | continue; |
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230 | } |
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231 | } |
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232 | } |
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233 | switch (key) { |
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234 | case 'O': |
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235 | case 'o': |
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236 | delwin(dialog); |
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237 | return 0; |
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238 | case 'H': |
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239 | case 'h': |
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240 | delwin(dialog); |
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241 | return 1; |
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242 | case KEY_UP: |
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243 | case KEY_LEFT: |
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244 | switch (button) { |
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245 | case -1: |
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246 | button = 1; /* Indicates "Help" button is selected */ |
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247 | print_buttons(dialog, height, width, 1); |
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248 | break; |
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249 | case 0: |
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250 | button = -1; /* Indicates input box is selected */ |
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251 | print_buttons(dialog, height, width, 0); |
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252 | wmove(dialog, box_y, box_x + input_x); |
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253 | wrefresh(dialog); |
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254 | break; |
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255 | case 1: |
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256 | button = 0; /* Indicates "OK" button is selected */ |
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257 | print_buttons(dialog, height, width, 0); |
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258 | break; |
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259 | } |
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260 | break; |
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261 | case TAB: |
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262 | case KEY_DOWN: |
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263 | case KEY_RIGHT: |
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264 | switch (button) { |
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265 | case -1: |
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266 | button = 0; /* Indicates "OK" button is selected */ |
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267 | print_buttons(dialog, height, width, 0); |
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268 | break; |
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269 | case 0: |
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270 | button = 1; /* Indicates "Help" button is selected */ |
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271 | print_buttons(dialog, height, width, 1); |
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272 | break; |
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273 | case 1: |
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274 | button = -1; /* Indicates input box is selected */ |
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275 | print_buttons(dialog, height, width, 0); |
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276 | wmove(dialog, box_y, box_x + input_x); |
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277 | wrefresh(dialog); |
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278 | break; |
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279 | } |
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280 | break; |
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281 | case ' ': |
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282 | case '\n': |
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283 | delwin(dialog); |
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284 | return (button == -1 ? 0 : button); |
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285 | case 'X': |
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286 | case 'x': |
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287 | key = KEY_ESC; |
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288 | break; |
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289 | case KEY_ESC: |
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290 | key = on_key_esc(dialog); |
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291 | break; |
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292 | case KEY_RESIZE: |
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293 | delwin(dialog); |
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294 | on_key_resize(); |
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295 | goto do_resize; |
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296 | } |
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297 | } |
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298 | |||
299 | delwin(dialog); |
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300 | return KEY_ESC; /* ESC pressed */ |
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301 | } |