| 1 | #include "Textbox.h"
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| 2 |
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| 3 | #include <iostream>
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| 4 |
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| 5 | using namespace std;
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| 6 |
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| 7 | Textbox::Textbox(int x, int y, int width, int height, ALLEGRO_FONT *font) :
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| 8 | GuiComponent(x, y, width, height, font)
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| 9 | {
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| 10 | str = "";
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| 11 | selected = false;
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| 12 | shiftPressed = false;
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| 13 |
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| 14 | // populate the shift map
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| 15 | for(int i=0; i<26; i++)
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| 16 | shiftMap['a'+i] = 'A'+i;
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| 17 |
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| 18 | shiftMap['1'] = '!';
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| 19 | shiftMap['2'] = '@';
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| 20 | shiftMap['3'] = '#';
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| 21 | shiftMap['4'] = '$';
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| 22 | shiftMap['5'] = '%';
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| 23 | shiftMap['6'] = '^';
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| 24 | shiftMap['7'] = '&';
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| 25 | shiftMap['8'] = '*';
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| 26 | shiftMap['9'] = '(';
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| 27 | shiftMap['0'] = ')';
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| 28 |
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| 29 | shiftMap['`'] = '~';
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| 30 | shiftMap['-'] = '_';
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| 31 | shiftMap['='] = '+';
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| 32 | shiftMap['['] = '{';
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| 33 | shiftMap[']'] = '}';
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| 34 | shiftMap['\\'] = '|';
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| 35 | shiftMap[';'] = ':';
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| 36 | shiftMap['\''] = '\"';
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| 37 | shiftMap[','] = '<';
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| 38 | shiftMap['.'] = '>';
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| 39 | shiftMap['/'] = '?';
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| 40 | shiftMap[' '] = ' ';
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| 41 | }
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| 42 |
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| 43 | Textbox::~Textbox(void)
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| 44 | {
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| 45 | }
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| 46 |
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| 47 | const string& Textbox::getStr() const
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| 48 | {
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| 49 | return str;
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| 50 | }
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| 51 |
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| 52 | void Textbox::clear(void)
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| 53 | {
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| 54 | str.clear();
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| 55 | }
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| 56 |
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| 57 | void Textbox::draw(ALLEGRO_DISPLAY *display)
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| 58 | {
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| 59 | al_set_target_bitmap(bitmap);
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| 60 | al_clear_to_color(al_map_rgb(0, 0, 0));
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| 61 |
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| 62 | int textWidth = al_get_text_width(font, str.c_str());
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| 63 | int fontHeight = al_get_font_line_height(font);
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| 64 |
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| 65 | int textPos = 1;
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| 66 | if(textWidth > this->width)
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| 67 | textPos = this->width-textWidth-3;
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| 68 |
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| 69 | al_draw_text(font, al_map_rgb(0, 255, 0), textPos, (this->height-fontHeight)/2, ALLEGRO_ALIGN_LEFT, str.c_str());
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| 70 |
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| 71 | #ifdef WINDOWS
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| 72 | al_draw_rectangle(1, 1, this->width, this->height, al_map_rgb(0, 255, 0), 1);
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| 73 | #else
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| 74 | al_draw_rectangle(1, 0, this->width, this->height-1, al_map_rgb(0, 255, 0), 1);
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| 75 | #endif
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| 76 |
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| 77 | al_set_target_bitmap(al_get_backbuffer(display));
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| 78 | al_draw_bitmap(bitmap, x, y, 0);
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| 79 | }
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| 80 |
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| 81 | bool Textbox::handleEvent(ALLEGRO_EVENT& e)
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| 82 | {
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| 83 | ALLEGRO_KEYBOARD_STATE keys;
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| 84 | al_get_keyboard_state(&keys);
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| 85 |
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| 86 | if (e.type == ALLEGRO_EVENT_MOUSE_BUTTON_UP) {
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| 87 | if (e.mouse.button == 1) {
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| 88 | if (this->x < e.mouse.x && e.mouse.x < (this->x+this->width)
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| 89 | && this->y < e.mouse.y && e.mouse.y < (this->y+this->height))
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| 90 | {
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| 91 | selected = true;
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| 92 | return true;
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| 93 | }else
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| 94 | selected = false;
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| 95 | }
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| 96 |
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| 97 | return false;
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| 98 | }
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| 99 |
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| 100 | if (!selected)
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| 101 | return false;
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| 102 |
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| 103 | if (e.type == ALLEGRO_EVENT_KEY_DOWN) {
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| 104 | char newChar = 0;
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| 105 |
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| 106 | if (ALLEGRO_KEY_A <= e.keyboard.keycode && e.keyboard.keycode <= ALLEGRO_KEY_Z)
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| 107 | newChar = 'a'+e.keyboard.keycode-ALLEGRO_KEY_A;
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| 108 | else if (ALLEGRO_KEY_0 <= e.keyboard.keycode && e.keyboard.keycode <= ALLEGRO_KEY_9)
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| 109 | newChar = '0'+e.keyboard.keycode-ALLEGRO_KEY_0;
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| 110 | else {
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| 111 | switch(e.keyboard.keycode)
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| 112 | {
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| 113 | case ALLEGRO_KEY_TILDE:
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| 114 | newChar = '`';
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| 115 | break;
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| 116 | case ALLEGRO_KEY_MINUS:
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| 117 | newChar = '-';
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| 118 | break;
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| 119 | case ALLEGRO_KEY_EQUALS:
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| 120 | newChar = '=';
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| 121 | break;
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| 122 | case ALLEGRO_KEY_OPENBRACE:
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| 123 | newChar = '[';
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| 124 | break;
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| 125 | case ALLEGRO_KEY_CLOSEBRACE:
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| 126 | newChar = ']';
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| 127 | break;
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| 128 | case ALLEGRO_KEY_SEMICOLON:
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| 129 | newChar = ';';
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| 130 | break;
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| 131 | case ALLEGRO_KEY_QUOTE:
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| 132 | newChar = '\'';
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| 133 | break;
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| 134 | case ALLEGRO_KEY_BACKSLASH:
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| 135 | newChar = '\\';
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| 136 | break;
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| 137 | case ALLEGRO_KEY_COMMA:
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| 138 | newChar = ',';
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| 139 | break;
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| 140 | case ALLEGRO_KEY_FULLSTOP:
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| 141 | newChar = '.';
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| 142 | break;
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| 143 | case ALLEGRO_KEY_SLASH:
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| 144 | newChar = '/';
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| 145 | break;
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| 146 | case ALLEGRO_KEY_SPACE:
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| 147 | newChar = ' ';
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| 148 | break;
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| 149 | case ALLEGRO_KEY_BACKSPACE:
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| 150 | if (str.size() > 0)
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| 151 | {
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| 152 | str = str.substr(0, str.size()-1);
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| 153 | return true;
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| 154 | }
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| 155 | else
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| 156 | return false;
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| 157 | break;
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| 158 | case ALLEGRO_KEY_LSHIFT:
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| 159 | case ALLEGRO_KEY_RSHIFT:
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| 160 | shiftPressed = true;
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| 161 | break;
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| 162 | default:
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| 163 | cout << "unknown keycode: " << e.keyboard.keycode << endl;
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| 164 | break;
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| 165 | }
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| 166 | }
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| 167 |
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| 168 | if (newChar != 0) {
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| 169 | if (al_key_down(&keys, ALLEGRO_KEY_LSHIFT) || al_key_down(&keys, ALLEGRO_KEY_RSHIFT))
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| 170 | newChar = shiftMap[newChar];
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| 171 |
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| 172 | str.append(1, newChar);
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| 173 | return true;
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| 174 | }
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| 175 | }
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| 176 | else if (e.type == ALLEGRO_EVENT_KEY_UP) {
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| 177 | switch(e.keyboard.keycode)
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| 178 | {
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| 179 | case ALLEGRO_KEY_LSHIFT:
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| 180 | case ALLEGRO_KEY_RSHIFT:
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| 181 | shiftPressed = false;
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| 182 | break;
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| 183 | }
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| 184 | }
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| 185 |
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| 186 | return false;
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| 187 | }
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