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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 /* General keyboard handling code for SDL */ |
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25 |
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26 #include "SDL_timer.h" |
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27 #include "SDL_events.h" |
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28 #include "SDL_events_c.h" |
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29 #include "SDL_sysevents.h" |
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30 |
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31 |
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32 /* Global keystate information */ |
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33 static Uint8 SDL_KeyState[SDLK_LAST]; |
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34 static SDLMod SDL_ModState; |
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35 int SDL_TranslateUNICODE = 0; |
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36 |
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37 static const char *keynames[SDLK_LAST]; /* Array of keycode names */ |
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38 |
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39 /* |
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40 * jk 991215 - added |
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41 */ |
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42 struct { |
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43 int firsttime; /* if we check against the delay or repeat value */ |
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44 int delay; /* the delay before we start repeating */ |
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45 int interval; /* the delay between key repeat events */ |
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46 Uint32 timestamp; /* the time the first keydown event occurred */ |
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47 |
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48 SDL_Event evt; /* the event we are supposed to repeat */ |
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49 } SDL_KeyRepeat; |
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50 |
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51 /* Public functions */ |
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52 int SDL_KeyboardInit(void) |
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53 { |
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54 SDL_VideoDevice *video = current_video; |
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55 SDL_VideoDevice *this = current_video; |
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56 |
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57 /* Set default mode of UNICODE translation */ |
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58 SDL_EnableUNICODE(DEFAULT_UNICODE_TRANSLATION); |
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59 |
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60 /* Initialize the tables */ |
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61 SDL_ModState = KMOD_NONE; |
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62 SDL_memset((void*)keynames, 0, sizeof(keynames)); |
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63 SDL_memset(SDL_KeyState, 0, sizeof(SDL_KeyState)); |
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64 video->InitOSKeymap(this); |
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65 |
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66 SDL_EnableKeyRepeat(0, 0); |
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67 |
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68 /* Fill in the blanks in keynames */ |
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69 keynames[SDLK_BACKSPACE] = "backspace"; |
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70 keynames[SDLK_TAB] = "tab"; |
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71 keynames[SDLK_CLEAR] = "clear"; |
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72 keynames[SDLK_RETURN] = "return"; |
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73 keynames[SDLK_PAUSE] = "pause"; |
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74 keynames[SDLK_ESCAPE] = "escape"; |
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75 keynames[SDLK_SPACE] = "space"; |
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76 keynames[SDLK_EXCLAIM] = "!"; |
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77 keynames[SDLK_QUOTEDBL] = "\""; |
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78 keynames[SDLK_HASH] = "#"; |
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79 keynames[SDLK_DOLLAR] = "$"; |
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80 keynames[SDLK_AMPERSAND] = "&"; |
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81 keynames[SDLK_QUOTE] = "'"; |
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82 keynames[SDLK_LEFTPAREN] = "("; |
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83 keynames[SDLK_RIGHTPAREN] = ")"; |
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84 keynames[SDLK_ASTERISK] = "*"; |
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85 keynames[SDLK_PLUS] = "+"; |
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86 keynames[SDLK_COMMA] = ","; |
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87 keynames[SDLK_MINUS] = "-"; |
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88 keynames[SDLK_PERIOD] = "."; |
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89 keynames[SDLK_SLASH] = "/"; |
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90 keynames[SDLK_0] = "0"; |
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91 keynames[SDLK_1] = "1"; |
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92 keynames[SDLK_2] = "2"; |
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93 keynames[SDLK_3] = "3"; |
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94 keynames[SDLK_4] = "4"; |
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95 keynames[SDLK_5] = "5"; |
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96 keynames[SDLK_6] = "6"; |
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97 keynames[SDLK_7] = "7"; |
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98 keynames[SDLK_8] = "8"; |
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99 keynames[SDLK_9] = "9"; |
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100 keynames[SDLK_COLON] = ":"; |
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101 keynames[SDLK_SEMICOLON] = ";"; |
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102 keynames[SDLK_LESS] = "<"; |
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103 keynames[SDLK_EQUALS] = "="; |
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104 keynames[SDLK_GREATER] = ">"; |
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105 keynames[SDLK_QUESTION] = "?"; |
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106 keynames[SDLK_AT] = "@"; |
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107 keynames[SDLK_LEFTBRACKET] = "["; |
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108 keynames[SDLK_BACKSLASH] = "\\"; |
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109 keynames[SDLK_RIGHTBRACKET] = "]"; |
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110 keynames[SDLK_CARET] = "^"; |
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111 keynames[SDLK_UNDERSCORE] = "_"; |
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112 keynames[SDLK_BACKQUOTE] = "`"; |
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113 keynames[SDLK_a] = "a"; |
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114 keynames[SDLK_b] = "b"; |
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115 keynames[SDLK_c] = "c"; |
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116 keynames[SDLK_d] = "d"; |
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117 keynames[SDLK_e] = "e"; |
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118 keynames[SDLK_f] = "f"; |
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119 keynames[SDLK_g] = "g"; |
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120 keynames[SDLK_h] = "h"; |
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121 keynames[SDLK_i] = "i"; |
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122 keynames[SDLK_j] = "j"; |
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123 keynames[SDLK_k] = "k"; |
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124 keynames[SDLK_l] = "l"; |
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125 keynames[SDLK_m] = "m"; |
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126 keynames[SDLK_n] = "n"; |
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127 keynames[SDLK_o] = "o"; |
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128 keynames[SDLK_p] = "p"; |
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129 keynames[SDLK_q] = "q"; |
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130 keynames[SDLK_r] = "r"; |
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131 keynames[SDLK_s] = "s"; |
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132 keynames[SDLK_t] = "t"; |
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133 keynames[SDLK_u] = "u"; |
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134 keynames[SDLK_v] = "v"; |
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135 keynames[SDLK_w] = "w"; |
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136 keynames[SDLK_x] = "x"; |
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137 keynames[SDLK_y] = "y"; |
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138 keynames[SDLK_z] = "z"; |
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139 keynames[SDLK_DELETE] = "delete"; |
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140 |
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141 keynames[SDLK_WORLD_0] = "world 0"; |
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142 keynames[SDLK_WORLD_1] = "world 1"; |
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143 keynames[SDLK_WORLD_2] = "world 2"; |
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144 keynames[SDLK_WORLD_3] = "world 3"; |
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145 keynames[SDLK_WORLD_4] = "world 4"; |
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146 keynames[SDLK_WORLD_5] = "world 5"; |
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147 keynames[SDLK_WORLD_6] = "world 6"; |
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148 keynames[SDLK_WORLD_7] = "world 7"; |
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149 keynames[SDLK_WORLD_8] = "world 8"; |
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150 keynames[SDLK_WORLD_9] = "world 9"; |
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151 keynames[SDLK_WORLD_10] = "world 10"; |
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152 keynames[SDLK_WORLD_11] = "world 11"; |
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153 keynames[SDLK_WORLD_12] = "world 12"; |
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154 keynames[SDLK_WORLD_13] = "world 13"; |
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155 keynames[SDLK_WORLD_14] = "world 14"; |
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156 keynames[SDLK_WORLD_15] = "world 15"; |
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157 keynames[SDLK_WORLD_16] = "world 16"; |
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158 keynames[SDLK_WORLD_17] = "world 17"; |
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159 keynames[SDLK_WORLD_18] = "world 18"; |
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160 keynames[SDLK_WORLD_19] = "world 19"; |
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161 keynames[SDLK_WORLD_20] = "world 20"; |
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162 keynames[SDLK_WORLD_21] = "world 21"; |
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163 keynames[SDLK_WORLD_22] = "world 22"; |
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164 keynames[SDLK_WORLD_23] = "world 23"; |
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165 keynames[SDLK_WORLD_24] = "world 24"; |
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166 keynames[SDLK_WORLD_25] = "world 25"; |
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167 keynames[SDLK_WORLD_26] = "world 26"; |
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168 keynames[SDLK_WORLD_27] = "world 27"; |
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169 keynames[SDLK_WORLD_28] = "world 28"; |
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170 keynames[SDLK_WORLD_29] = "world 29"; |
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171 keynames[SDLK_WORLD_30] = "world 30"; |
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172 keynames[SDLK_WORLD_31] = "world 31"; |
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173 keynames[SDLK_WORLD_32] = "world 32"; |
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174 keynames[SDLK_WORLD_33] = "world 33"; |
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175 keynames[SDLK_WORLD_34] = "world 34"; |
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176 keynames[SDLK_WORLD_35] = "world 35"; |
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177 keynames[SDLK_WORLD_36] = "world 36"; |
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178 keynames[SDLK_WORLD_37] = "world 37"; |
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179 keynames[SDLK_WORLD_38] = "world 38"; |
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180 keynames[SDLK_WORLD_39] = "world 39"; |
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181 keynames[SDLK_WORLD_40] = "world 40"; |
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182 keynames[SDLK_WORLD_41] = "world 41"; |
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183 keynames[SDLK_WORLD_42] = "world 42"; |
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184 keynames[SDLK_WORLD_43] = "world 43"; |
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185 keynames[SDLK_WORLD_44] = "world 44"; |
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186 keynames[SDLK_WORLD_45] = "world 45"; |
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187 keynames[SDLK_WORLD_46] = "world 46"; |
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188 keynames[SDLK_WORLD_47] = "world 47"; |
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189 keynames[SDLK_WORLD_48] = "world 48"; |
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190 keynames[SDLK_WORLD_49] = "world 49"; |
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191 keynames[SDLK_WORLD_50] = "world 50"; |
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192 keynames[SDLK_WORLD_51] = "world 51"; |
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193 keynames[SDLK_WORLD_52] = "world 52"; |
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194 keynames[SDLK_WORLD_53] = "world 53"; |
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195 keynames[SDLK_WORLD_54] = "world 54"; |
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196 keynames[SDLK_WORLD_55] = "world 55"; |
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197 keynames[SDLK_WORLD_56] = "world 56"; |
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198 keynames[SDLK_WORLD_57] = "world 57"; |
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199 keynames[SDLK_WORLD_58] = "world 58"; |
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200 keynames[SDLK_WORLD_59] = "world 59"; |
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201 keynames[SDLK_WORLD_60] = "world 60"; |
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202 keynames[SDLK_WORLD_61] = "world 61"; |
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203 keynames[SDLK_WORLD_62] = "world 62"; |
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204 keynames[SDLK_WORLD_63] = "world 63"; |
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205 keynames[SDLK_WORLD_64] = "world 64"; |
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206 keynames[SDLK_WORLD_65] = "world 65"; |
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207 keynames[SDLK_WORLD_66] = "world 66"; |
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208 keynames[SDLK_WORLD_67] = "world 67"; |
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209 keynames[SDLK_WORLD_68] = "world 68"; |
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210 keynames[SDLK_WORLD_69] = "world 69"; |
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211 keynames[SDLK_WORLD_70] = "world 70"; |
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212 keynames[SDLK_WORLD_71] = "world 71"; |
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213 keynames[SDLK_WORLD_72] = "world 72"; |
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214 keynames[SDLK_WORLD_73] = "world 73"; |
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215 keynames[SDLK_WORLD_74] = "world 74"; |
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216 keynames[SDLK_WORLD_75] = "world 75"; |
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217 keynames[SDLK_WORLD_76] = "world 76"; |
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218 keynames[SDLK_WORLD_77] = "world 77"; |
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219 keynames[SDLK_WORLD_78] = "world 78"; |
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220 keynames[SDLK_WORLD_79] = "world 79"; |
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221 keynames[SDLK_WORLD_80] = "world 80"; |
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222 keynames[SDLK_WORLD_81] = "world 81"; |
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223 keynames[SDLK_WORLD_82] = "world 82"; |
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224 keynames[SDLK_WORLD_83] = "world 83"; |
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225 keynames[SDLK_WORLD_84] = "world 84"; |
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226 keynames[SDLK_WORLD_85] = "world 85"; |
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227 keynames[SDLK_WORLD_86] = "world 86"; |
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228 keynames[SDLK_WORLD_87] = "world 87"; |
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229 keynames[SDLK_WORLD_88] = "world 88"; |
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230 keynames[SDLK_WORLD_89] = "world 89"; |
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231 keynames[SDLK_WORLD_90] = "world 90"; |
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232 keynames[SDLK_WORLD_91] = "world 91"; |
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233 keynames[SDLK_WORLD_92] = "world 92"; |
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234 keynames[SDLK_WORLD_93] = "world 93"; |
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235 keynames[SDLK_WORLD_94] = "world 94"; |
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236 keynames[SDLK_WORLD_95] = "world 95"; |
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237 |
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238 keynames[SDLK_KP0] = "[0]"; |
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239 keynames[SDLK_KP1] = "[1]"; |
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240 keynames[SDLK_KP2] = "[2]"; |
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241 keynames[SDLK_KP3] = "[3]"; |
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242 keynames[SDLK_KP4] = "[4]"; |
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243 keynames[SDLK_KP5] = "[5]"; |
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244 keynames[SDLK_KP6] = "[6]"; |
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245 keynames[SDLK_KP7] = "[7]"; |
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246 keynames[SDLK_KP8] = "[8]"; |
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247 keynames[SDLK_KP9] = "[9]"; |
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248 keynames[SDLK_KP_PERIOD] = "[.]"; |
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249 keynames[SDLK_KP_DIVIDE] = "[/]"; |
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250 keynames[SDLK_KP_MULTIPLY] = "[*]"; |
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251 keynames[SDLK_KP_MINUS] = "[-]"; |
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252 keynames[SDLK_KP_PLUS] = "[+]"; |
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253 keynames[SDLK_KP_ENTER] = "enter"; |
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254 keynames[SDLK_KP_EQUALS] = "equals"; |
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255 |
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256 keynames[SDLK_UP] = "up"; |
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257 keynames[SDLK_DOWN] = "down"; |
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258 keynames[SDLK_RIGHT] = "right"; |
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259 keynames[SDLK_LEFT] = "left"; |
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260 keynames[SDLK_DOWN] = "down"; |
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261 keynames[SDLK_INSERT] = "insert"; |
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262 keynames[SDLK_HOME] = "home"; |
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263 keynames[SDLK_END] = "end"; |
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264 keynames[SDLK_PAGEUP] = "page up"; |
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265 keynames[SDLK_PAGEDOWN] = "page down"; |
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266 |
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267 keynames[SDLK_F1] = "f1"; |
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268 keynames[SDLK_F2] = "f2"; |
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269 keynames[SDLK_F3] = "f3"; |
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270 keynames[SDLK_F4] = "f4"; |
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271 keynames[SDLK_F5] = "f5"; |
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272 keynames[SDLK_F6] = "f6"; |
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273 keynames[SDLK_F7] = "f7"; |
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274 keynames[SDLK_F8] = "f8"; |
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275 keynames[SDLK_F9] = "f9"; |
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276 keynames[SDLK_F10] = "f10"; |
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277 keynames[SDLK_F11] = "f11"; |
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278 keynames[SDLK_F12] = "f12"; |
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279 keynames[SDLK_F13] = "f13"; |
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280 keynames[SDLK_F14] = "f14"; |
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281 keynames[SDLK_F15] = "f15"; |
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282 |
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283 keynames[SDLK_NUMLOCK] = "numlock"; |
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284 keynames[SDLK_CAPSLOCK] = "caps lock"; |
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285 keynames[SDLK_SCROLLOCK] = "scroll lock"; |
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286 keynames[SDLK_RSHIFT] = "right shift"; |
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287 keynames[SDLK_LSHIFT] = "left shift"; |
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288 keynames[SDLK_RCTRL] = "right ctrl"; |
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289 keynames[SDLK_LCTRL] = "left ctrl"; |
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290 keynames[SDLK_RALT] = "right alt"; |
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291 keynames[SDLK_LALT] = "left alt"; |
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292 keynames[SDLK_RMETA] = "right meta"; |
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293 keynames[SDLK_LMETA] = "left meta"; |
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294 keynames[SDLK_LSUPER] = "left super"; /* "Windows" keys */ |
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295 keynames[SDLK_RSUPER] = "right super"; |
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296 keynames[SDLK_MODE] = "alt gr"; |
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297 keynames[SDLK_COMPOSE] = "compose"; |
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298 |
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299 keynames[SDLK_HELP] = "help"; |
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300 keynames[SDLK_PRINT] = "print screen"; |
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301 keynames[SDLK_SYSREQ] = "sys req"; |
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302 keynames[SDLK_BREAK] = "break"; |
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303 keynames[SDLK_MENU] = "menu"; |
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304 keynames[SDLK_POWER] = "power"; |
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305 keynames[SDLK_EURO] = "euro"; |
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306 keynames[SDLK_UNDO] = "undo"; |
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307 |
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308 /* Done. Whew. */ |
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309 return(0); |
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310 } |
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311 void SDL_KeyboardQuit(void) |
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312 { |
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313 } |
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314 |
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315 /* We lost the keyboard, so post key up messages for all pressed keys */ |
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316 void SDL_ResetKeyboard(void) |
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317 { |
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318 SDL_keysym keysym; |
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319 SDLKey key; |
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320 |
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321 SDL_memset(&keysym, 0, (sizeof keysym)); |
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322 for ( key=SDLK_FIRST; key<SDLK_LAST; ++key ) { |
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323 if ( SDL_KeyState[key] == SDL_PRESSED ) { |
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324 keysym.sym = key; |
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325 SDL_PrivateKeyboard(SDL_RELEASED, &keysym); |
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326 } |
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327 } |
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328 SDL_KeyRepeat.timestamp = 0; |
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329 } |
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330 |
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331 int SDL_EnableUNICODE(int enable) |
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332 { |
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333 int old_mode; |
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334 |
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335 old_mode = SDL_TranslateUNICODE; |
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336 if ( enable >= 0 ) { |
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337 SDL_TranslateUNICODE = enable; |
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338 } |
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339 return(old_mode); |
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340 } |
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341 |
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342 Uint8 * SDL_GetKeyState (int *numkeys) |
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343 { |
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344 if ( numkeys != (int *)0 ) |
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345 *numkeys = SDLK_LAST; |
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346 return(SDL_KeyState); |
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347 } |
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348 SDLMod SDL_GetModState (void) |
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349 { |
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350 return(SDL_ModState); |
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351 } |
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352 void SDL_SetModState (SDLMod modstate) |
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353 { |
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354 SDL_ModState = modstate; |
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355 } |
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356 |
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357 char *SDL_GetKeyName(SDLKey key) |
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358 { |
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359 const char *keyname; |
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360 |
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361 keyname = NULL; |
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362 if ( key < SDLK_LAST ) { |
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363 keyname = keynames[key]; |
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364 } |
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365 if ( keyname == NULL ) { |
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366 keyname = "unknown key"; |
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367 } |
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368 /* FIXME: make this function const in 1.3 */ |
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369 return (char *)(keyname); |
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370 } |
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371 |
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372 /* These are global for SDL_eventloop.c */ |
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373 int SDL_PrivateKeyboard(Uint8 state, SDL_keysym *keysym) |
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374 { |
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375 SDL_Event event; |
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376 int posted, repeatable; |
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377 Uint16 modstate; |
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378 |
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379 SDL_memset(&event, 0, sizeof(event)); |
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380 |
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381 #if 0 |
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382 printf("The '%s' key has been %s\n", SDL_GetKeyName(keysym->sym), |
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383 state == SDL_PRESSED ? "pressed" : "released"); |
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384 #endif |
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385 /* Set up the keysym */ |
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386 modstate = (Uint16)SDL_ModState; |
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387 |
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388 repeatable = 0; |
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389 |
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390 if ( state == SDL_PRESSED ) { |
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391 keysym->mod = (SDLMod)modstate; |
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392 switch (keysym->sym) { |
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393 case SDLK_UNKNOWN: |
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394 break; |
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395 case SDLK_NUMLOCK: |
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396 modstate ^= KMOD_NUM; |
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397 if ( ! (modstate&KMOD_NUM) ) |
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398 state = SDL_RELEASED; |
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399 keysym->mod = (SDLMod)modstate; |
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400 break; |
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401 case SDLK_CAPSLOCK: |
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402 modstate ^= KMOD_CAPS; |
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403 if ( ! (modstate&KMOD_CAPS) ) |
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404 state = SDL_RELEASED; |
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405 keysym->mod = (SDLMod)modstate; |
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406 break; |
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407 case SDLK_LCTRL: |
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408 modstate |= KMOD_LCTRL; |
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409 break; |
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410 case SDLK_RCTRL: |
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411 modstate |= KMOD_RCTRL; |
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412 break; |
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413 case SDLK_LSHIFT: |
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414 modstate |= KMOD_LSHIFT; |
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415 break; |
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416 case SDLK_RSHIFT: |
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417 modstate |= KMOD_RSHIFT; |
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418 break; |
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419 case SDLK_LALT: |
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420 modstate |= KMOD_LALT; |
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421 break; |
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422 case SDLK_RALT: |
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423 modstate |= KMOD_RALT; |
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424 break; |
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425 case SDLK_LMETA: |
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426 modstate |= KMOD_LMETA; |
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427 break; |
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428 case SDLK_RMETA: |
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429 modstate |= KMOD_RMETA; |
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430 break; |
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431 case SDLK_MODE: |
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432 modstate |= KMOD_MODE; |
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433 break; |
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434 default: |
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435 repeatable = 1; |
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436 break; |
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437 } |
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438 } else { |
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439 switch (keysym->sym) { |
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440 case SDLK_UNKNOWN: |
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441 break; |
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442 case SDLK_NUMLOCK: |
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443 case SDLK_CAPSLOCK: |
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444 /* Only send keydown events */ |
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445 return(0); |
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446 case SDLK_LCTRL: |
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447 modstate &= ~KMOD_LCTRL; |
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448 break; |
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449 case SDLK_RCTRL: |
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450 modstate &= ~KMOD_RCTRL; |
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451 break; |
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452 case SDLK_LSHIFT: |
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453 modstate &= ~KMOD_LSHIFT; |
|
454 break; |
|
455 case SDLK_RSHIFT: |
|
456 modstate &= ~KMOD_RSHIFT; |
|
457 break; |
|
458 case SDLK_LALT: |
|
459 modstate &= ~KMOD_LALT; |
|
460 break; |
|
461 case SDLK_RALT: |
|
462 modstate &= ~KMOD_RALT; |
|
463 break; |
|
464 case SDLK_LMETA: |
|
465 modstate &= ~KMOD_LMETA; |
|
466 break; |
|
467 case SDLK_RMETA: |
|
468 modstate &= ~KMOD_RMETA; |
|
469 break; |
|
470 case SDLK_MODE: |
|
471 modstate &= ~KMOD_MODE; |
|
472 break; |
|
473 default: |
|
474 break; |
|
475 } |
|
476 keysym->mod = (SDLMod)modstate; |
|
477 } |
|
478 |
|
479 /* Figure out what type of event this is */ |
|
480 switch (state) { |
|
481 case SDL_PRESSED: |
|
482 event.type = SDL_KEYDOWN; |
|
483 break; |
|
484 case SDL_RELEASED: |
|
485 event.type = SDL_KEYUP; |
|
486 /* |
|
487 * jk 991215 - Added |
|
488 */ |
|
489 if ( SDL_KeyRepeat.timestamp && |
|
490 SDL_KeyRepeat.evt.key.keysym.sym == keysym->sym ) { |
|
491 SDL_KeyRepeat.timestamp = 0; |
|
492 } |
|
493 break; |
|
494 default: |
|
495 /* Invalid state -- bail */ |
|
496 return(0); |
|
497 } |
|
498 |
|
499 if ( keysym->sym != SDLK_UNKNOWN ) { |
|
500 /* Drop events that don't change state */ |
|
501 if ( SDL_KeyState[keysym->sym] == state ) { |
|
502 #if 0 |
|
503 printf("Keyboard event didn't change state - dropped!\n"); |
|
504 #endif |
|
505 return(0); |
|
506 } |
|
507 |
|
508 /* Update internal keyboard state */ |
|
509 SDL_ModState = (SDLMod)modstate; |
|
510 SDL_KeyState[keysym->sym] = state; |
|
511 } |
|
512 |
|
513 /* Post the event, if desired */ |
|
514 posted = 0; |
|
515 if ( SDL_ProcessEvents[event.type] == SDL_ENABLE ) { |
|
516 event.key.state = state; |
|
517 event.key.keysym = *keysym; |
|
518 /* |
|
519 * jk 991215 - Added |
|
520 */ |
|
521 if (repeatable && (SDL_KeyRepeat.delay != 0)) { |
|
522 SDL_KeyRepeat.evt = event; |
|
523 SDL_KeyRepeat.firsttime = 1; |
|
524 SDL_KeyRepeat.timestamp=SDL_GetTicks(); |
|
525 } |
|
526 if ( (SDL_EventOK == NULL) || SDL_EventOK(&event) ) { |
|
527 posted = 1; |
|
528 SDL_PushEvent(&event); |
|
529 } |
|
530 } |
|
531 return(posted); |
|
532 } |
|
533 |
|
534 /* |
|
535 * jk 991215 - Added |
|
536 */ |
|
537 void SDL_CheckKeyRepeat(void) |
|
538 { |
|
539 if ( SDL_KeyRepeat.timestamp ) { |
|
540 Uint32 now, interval; |
|
541 |
|
542 now = SDL_GetTicks(); |
|
543 interval = (now - SDL_KeyRepeat.timestamp); |
|
544 if ( SDL_KeyRepeat.firsttime ) { |
|
545 if ( interval > (Uint32)SDL_KeyRepeat.delay ) { |
|
546 SDL_KeyRepeat.timestamp = now; |
|
547 SDL_KeyRepeat.firsttime = 0; |
|
548 } |
|
549 } else { |
|
550 if ( interval > (Uint32)SDL_KeyRepeat.interval ) { |
|
551 SDL_KeyRepeat.timestamp = now; |
|
552 if ( (SDL_EventOK == NULL) || SDL_EventOK(&SDL_KeyRepeat.evt) ) { |
|
553 SDL_PushEvent(&SDL_KeyRepeat.evt); |
|
554 } |
|
555 } |
|
556 } |
|
557 } |
|
558 } |
|
559 |
|
560 int SDL_EnableKeyRepeat(int delay, int interval) |
|
561 { |
|
562 if ( (delay < 0) || (interval < 0) ) { |
|
563 SDL_SetError("keyboard repeat value less than zero"); |
|
564 return(-1); |
|
565 } |
|
566 SDL_KeyRepeat.firsttime = 0; |
|
567 SDL_KeyRepeat.delay = delay; |
|
568 SDL_KeyRepeat.interval = interval; |
|
569 SDL_KeyRepeat.timestamp = 0; |
|
570 return(0); |
|
571 } |
|
572 |
|
573 void SDL_GetKeyRepeat(int *delay, int *interval) |
|
574 { |
|
575 *delay = SDL_KeyRepeat.delay; |
|
576 *interval = SDL_KeyRepeat.interval; |
|
577 } |
|
578 |