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0
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@devolution.com
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* General keyboard handling code for SDL */
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29
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30 #include <stdio.h>
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31 #include <ctype.h>
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32 #include <stdlib.h>
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33 #include <string.h>
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34
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35 #include "SDL_error.h"
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36 #include "SDL_events.h"
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37 #include "SDL_timer.h"
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38 #include "SDL_events_c.h"
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39 #include "SDL_sysevents.h"
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40
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41
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42 /* Global keystate information */
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43 static Uint8 SDL_KeyState[SDLK_LAST];
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44 static SDLMod SDL_ModState;
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45 int SDL_TranslateUNICODE = 0;
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46
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47 static char *keynames[SDLK_LAST]; /* Array of keycode names */
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48
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49 /*
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50 * jk 991215 - added
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51 */
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52 #define MINIMUM_REPEAT_INTERVAL 30 /* Minimum repeat interval (30 ms) */
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53 struct {
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54 int firsttime; /* if we check against the delay or repeat value */
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55 int delay; /* the delay before we start repeating */
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56 int interval; /* the delay between key repeat events */
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57 Uint32 timestamp; /* the time the first keydown event occurred */
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58
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59 SDL_Event evt; /* the event we are supposed to repeat */
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60 } SDL_KeyRepeat;
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61
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62 /* Public functions */
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63 int SDL_KeyboardInit(void)
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64 {
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65 SDL_VideoDevice *video = current_video;
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66 SDL_VideoDevice *this = current_video;
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67 Uint16 i;
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68
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69 /* Set default mode of UNICODE translation */
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70 SDL_EnableUNICODE(DEFAULT_UNICODE_TRANSLATION);
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71
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72 /* Initialize the tables */
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73 SDL_ModState = KMOD_NONE;
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74 for ( i=0; i<SDL_TABLESIZE(keynames); ++i )
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75 keynames[i] = NULL;
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76 for ( i=0; i<SDL_TABLESIZE(SDL_KeyState); ++i )
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77 SDL_KeyState[i] = SDL_RELEASED;
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78 video->InitOSKeymap(this);
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79
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80 SDL_EnableKeyRepeat(0, 0);
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81
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82 /* Fill in the blanks in keynames */
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83 keynames[SDLK_BACKSPACE] = "backspace";
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84 keynames[SDLK_TAB] = "tab";
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85 keynames[SDLK_CLEAR] = "clear";
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86 keynames[SDLK_RETURN] = "return";
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87 keynames[SDLK_PAUSE] = "pause";
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88 keynames[SDLK_ESCAPE] = "escape";
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89 keynames[SDLK_SPACE] = "space";
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90 keynames[SDLK_EXCLAIM] = "!";
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91 keynames[SDLK_QUOTEDBL] = "\"";
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92 keynames[SDLK_HASH] = "#";
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93 keynames[SDLK_DOLLAR] = "$";
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94 keynames[SDLK_AMPERSAND] = "&";
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95 keynames[SDLK_QUOTE] = "'";
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96 keynames[SDLK_LEFTPAREN] = "(";
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97 keynames[SDLK_RIGHTPAREN] = ")";
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98 keynames[SDLK_ASTERISK] = "*";
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99 keynames[SDLK_PLUS] = "+";
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100 keynames[SDLK_COMMA] = ",";
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101 keynames[SDLK_MINUS] = "-";
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102 keynames[SDLK_PERIOD] = ".";
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103 keynames[SDLK_SLASH] = "/";
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104 keynames[SDLK_0] = "0";
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105 keynames[SDLK_1] = "1";
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106 keynames[SDLK_2] = "2";
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107 keynames[SDLK_3] = "3";
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108 keynames[SDLK_4] = "4";
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109 keynames[SDLK_5] = "5";
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110 keynames[SDLK_6] = "6";
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111 keynames[SDLK_7] = "7";
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112 keynames[SDLK_8] = "8";
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113 keynames[SDLK_9] = "9";
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114 keynames[SDLK_COLON] = ":";
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115 keynames[SDLK_SEMICOLON] = ";";
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116 keynames[SDLK_LESS] = "<";
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117 keynames[SDLK_EQUALS] = "=";
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118 keynames[SDLK_GREATER] = ">";
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119 keynames[SDLK_QUESTION] = "?";
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120 keynames[SDLK_AT] = "@";
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121 keynames[SDLK_LEFTBRACKET] = "[";
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122 keynames[SDLK_BACKSLASH] = "\\";
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123 keynames[SDLK_RIGHTBRACKET] = "]";
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124 keynames[SDLK_CARET] = "^";
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125 keynames[SDLK_UNDERSCORE] = "_";
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126 keynames[SDLK_BACKQUOTE] = "`";
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127 keynames[SDLK_a] = "a";
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128 keynames[SDLK_b] = "b";
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129 keynames[SDLK_c] = "c";
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130 keynames[SDLK_d] = "d";
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131 keynames[SDLK_e] = "e";
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132 keynames[SDLK_f] = "f";
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133 keynames[SDLK_g] = "g";
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134 keynames[SDLK_h] = "h";
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135 keynames[SDLK_i] = "i";
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136 keynames[SDLK_j] = "j";
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137 keynames[SDLK_k] = "k";
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138 keynames[SDLK_l] = "l";
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139 keynames[SDLK_m] = "m";
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140 keynames[SDLK_n] = "n";
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141 keynames[SDLK_o] = "o";
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142 keynames[SDLK_p] = "p";
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143 keynames[SDLK_q] = "q";
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144 keynames[SDLK_r] = "r";
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145 keynames[SDLK_s] = "s";
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146 keynames[SDLK_t] = "t";
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147 keynames[SDLK_u] = "u";
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148 keynames[SDLK_v] = "v";
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149 keynames[SDLK_w] = "w";
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150 keynames[SDLK_x] = "x";
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151 keynames[SDLK_y] = "y";
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152 keynames[SDLK_z] = "z";
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153 keynames[SDLK_DELETE] = "delete";
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154
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155 keynames[SDLK_WORLD_0] = "world 0";
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156 keynames[SDLK_WORLD_1] = "world 1";
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157 keynames[SDLK_WORLD_2] = "world 2";
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158 keynames[SDLK_WORLD_3] = "world 3";
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159 keynames[SDLK_WORLD_4] = "world 4";
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160 keynames[SDLK_WORLD_5] = "world 5";
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161 keynames[SDLK_WORLD_6] = "world 6";
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162 keynames[SDLK_WORLD_7] = "world 7";
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163 keynames[SDLK_WORLD_8] = "world 8";
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164 keynames[SDLK_WORLD_9] = "world 9";
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165 keynames[SDLK_WORLD_10] = "world 10";
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166 keynames[SDLK_WORLD_11] = "world 11";
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167 keynames[SDLK_WORLD_12] = "world 12";
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168 keynames[SDLK_WORLD_13] = "world 13";
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169 keynames[SDLK_WORLD_14] = "world 14";
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170 keynames[SDLK_WORLD_15] = "world 15";
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171 keynames[SDLK_WORLD_16] = "world 16";
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172 keynames[SDLK_WORLD_17] = "world 17";
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173 keynames[SDLK_WORLD_18] = "world 18";
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174 keynames[SDLK_WORLD_19] = "world 19";
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175 keynames[SDLK_WORLD_20] = "world 20";
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176 keynames[SDLK_WORLD_21] = "world 21";
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177 keynames[SDLK_WORLD_22] = "world 22";
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178 keynames[SDLK_WORLD_23] = "world 23";
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179 keynames[SDLK_WORLD_24] = "world 24";
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180 keynames[SDLK_WORLD_25] = "world 25";
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181 keynames[SDLK_WORLD_26] = "world 26";
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182 keynames[SDLK_WORLD_27] = "world 27";
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183 keynames[SDLK_WORLD_28] = "world 28";
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184 keynames[SDLK_WORLD_29] = "world 29";
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185 keynames[SDLK_WORLD_30] = "world 30";
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186 keynames[SDLK_WORLD_31] = "world 31";
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187 keynames[SDLK_WORLD_32] = "world 32";
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188 keynames[SDLK_WORLD_33] = "world 33";
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189 keynames[SDLK_WORLD_34] = "world 34";
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190 keynames[SDLK_WORLD_35] = "world 35";
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191 keynames[SDLK_WORLD_36] = "world 36";
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192 keynames[SDLK_WORLD_37] = "world 37";
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193 keynames[SDLK_WORLD_38] = "world 38";
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194 keynames[SDLK_WORLD_39] = "world 39";
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195 keynames[SDLK_WORLD_40] = "world 40";
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196 keynames[SDLK_WORLD_41] = "world 41";
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197 keynames[SDLK_WORLD_42] = "world 42";
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198 keynames[SDLK_WORLD_43] = "world 43";
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199 keynames[SDLK_WORLD_44] = "world 44";
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200 keynames[SDLK_WORLD_45] = "world 45";
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201 keynames[SDLK_WORLD_46] = "world 46";
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202 keynames[SDLK_WORLD_47] = "world 47";
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203 keynames[SDLK_WORLD_48] = "world 48";
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204 keynames[SDLK_WORLD_49] = "world 49";
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205 keynames[SDLK_WORLD_50] = "world 50";
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206 keynames[SDLK_WORLD_51] = "world 51";
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207 keynames[SDLK_WORLD_52] = "world 52";
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208 keynames[SDLK_WORLD_53] = "world 53";
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209 keynames[SDLK_WORLD_54] = "world 54";
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210 keynames[SDLK_WORLD_55] = "world 55";
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211 keynames[SDLK_WORLD_56] = "world 56";
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212 keynames[SDLK_WORLD_57] = "world 57";
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213 keynames[SDLK_WORLD_58] = "world 58";
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214 keynames[SDLK_WORLD_59] = "world 59";
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215 keynames[SDLK_WORLD_60] = "world 60";
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216 keynames[SDLK_WORLD_61] = "world 61";
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217 keynames[SDLK_WORLD_62] = "world 62";
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218 keynames[SDLK_WORLD_63] = "world 63";
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219 keynames[SDLK_WORLD_64] = "world 64";
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220 keynames[SDLK_WORLD_65] = "world 65";
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221 keynames[SDLK_WORLD_66] = "world 66";
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222 keynames[SDLK_WORLD_67] = "world 67";
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223 keynames[SDLK_WORLD_68] = "world 68";
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224 keynames[SDLK_WORLD_69] = "world 69";
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225 keynames[SDLK_WORLD_70] = "world 70";
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226 keynames[SDLK_WORLD_71] = "world 71";
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227 keynames[SDLK_WORLD_72] = "world 72";
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228 keynames[SDLK_WORLD_73] = "world 73";
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229 keynames[SDLK_WORLD_74] = "world 74";
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230 keynames[SDLK_WORLD_75] = "world 75";
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231 keynames[SDLK_WORLD_76] = "world 76";
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232 keynames[SDLK_WORLD_77] = "world 77";
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233 keynames[SDLK_WORLD_78] = "world 78";
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234 keynames[SDLK_WORLD_79] = "world 79";
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235 keynames[SDLK_WORLD_80] = "world 80";
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236 keynames[SDLK_WORLD_81] = "world 81";
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237 keynames[SDLK_WORLD_82] = "world 82";
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238 keynames[SDLK_WORLD_83] = "world 83";
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239 keynames[SDLK_WORLD_84] = "world 84";
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240 keynames[SDLK_WORLD_85] = "world 85";
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241 keynames[SDLK_WORLD_86] = "world 86";
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242 keynames[SDLK_WORLD_87] = "world 87";
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243 keynames[SDLK_WORLD_88] = "world 88";
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244 keynames[SDLK_WORLD_89] = "world 89";
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245 keynames[SDLK_WORLD_90] = "world 90";
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246 keynames[SDLK_WORLD_91] = "world 91";
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247 keynames[SDLK_WORLD_92] = "world 92";
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248 keynames[SDLK_WORLD_93] = "world 93";
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249 keynames[SDLK_WORLD_94] = "world 94";
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250 keynames[SDLK_WORLD_95] = "world 95";
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251
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252 keynames[SDLK_KP0] = "[0]";
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253 keynames[SDLK_KP1] = "[1]";
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254 keynames[SDLK_KP2] = "[2]";
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255 keynames[SDLK_KP3] = "[3]";
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256 keynames[SDLK_KP4] = "[4]";
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257 keynames[SDLK_KP5] = "[5]";
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258 keynames[SDLK_KP6] = "[6]";
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259 keynames[SDLK_KP7] = "[7]";
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260 keynames[SDLK_KP8] = "[8]";
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261 keynames[SDLK_KP9] = "[9]";
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262 keynames[SDLK_KP_PERIOD] = "[.]";
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263 keynames[SDLK_KP_DIVIDE] = "[/]";
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264 keynames[SDLK_KP_MULTIPLY] = "[*]";
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265 keynames[SDLK_KP_MINUS] = "[-]";
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266 keynames[SDLK_KP_PLUS] = "[+]";
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267 keynames[SDLK_KP_ENTER] = "enter";
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268 keynames[SDLK_KP_EQUALS] = "equals";
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269
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270 keynames[SDLK_UP] = "up";
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271 keynames[SDLK_DOWN] = "down";
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272 keynames[SDLK_RIGHT] = "right";
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273 keynames[SDLK_LEFT] = "left";
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274 keynames[SDLK_DOWN] = "down";
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275 keynames[SDLK_INSERT] = "insert";
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276 keynames[SDLK_HOME] = "home";
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277 keynames[SDLK_END] = "end";
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278 keynames[SDLK_PAGEUP] = "page up";
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279 keynames[SDLK_PAGEDOWN] = "page down";
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280
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281 keynames[SDLK_F1] = "f1";
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282 keynames[SDLK_F2] = "f2";
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283 keynames[SDLK_F3] = "f3";
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284 keynames[SDLK_F4] = "f4";
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285 keynames[SDLK_F5] = "f5";
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286 keynames[SDLK_F6] = "f6";
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287 keynames[SDLK_F7] = "f7";
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288 keynames[SDLK_F8] = "f8";
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289 keynames[SDLK_F9] = "f9";
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290 keynames[SDLK_F10] = "f10";
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291 keynames[SDLK_F11] = "f11";
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292 keynames[SDLK_F12] = "f12";
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293 keynames[SDLK_F13] = "f13";
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294 keynames[SDLK_F14] = "f14";
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295 keynames[SDLK_F15] = "f15";
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296
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297 keynames[SDLK_NUMLOCK] = "numlock";
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298 keynames[SDLK_CAPSLOCK] = "caps lock";
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299 keynames[SDLK_SCROLLOCK] = "scroll lock";
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300 keynames[SDLK_RSHIFT] = "right shift";
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301 keynames[SDLK_LSHIFT] = "left shift";
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302 keynames[SDLK_RCTRL] = "right ctrl";
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303 keynames[SDLK_LCTRL] = "left ctrl";
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304 keynames[SDLK_RALT] = "right alt";
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305 keynames[SDLK_LALT] = "left alt";
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306 keynames[SDLK_RMETA] = "right meta";
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307 keynames[SDLK_LMETA] = "left meta";
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308 keynames[SDLK_LSUPER] = "left super"; /* "Windows" keys */
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309 keynames[SDLK_RSUPER] = "right super";
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310 keynames[SDLK_MODE] = "alt gr";
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311 keynames[SDLK_COMPOSE] = "compose";
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312
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313 keynames[SDLK_HELP] = "help";
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314 keynames[SDLK_PRINT] = "print screen";
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315 keynames[SDLK_SYSREQ] = "sys req";
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316 keynames[SDLK_BREAK] = "break";
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317 keynames[SDLK_MENU] = "menu";
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318 keynames[SDLK_POWER] = "power";
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319 keynames[SDLK_EURO] = "euro";
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320
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321 /* Done. Whew. */
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322 return(0);
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323 }
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324
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325 /* We lost the keyboard, so post key up messages for all pressed keys */
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326 void SDL_ResetKeyboard(void)
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327 {
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328 SDL_keysym keysym;
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329 SDLKey key;
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330
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331 memset(&keysym, 0, (sizeof keysym));
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332 for ( key=SDLK_FIRST; key<SDLK_LAST; ++key ) {
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333 if ( SDL_KeyState[key] == SDL_PRESSED ) {
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334 keysym.sym = key;
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335 SDL_PrivateKeyboard(SDL_RELEASED, &keysym);
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336 }
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337 }
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338 }
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339
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340 int SDL_EnableUNICODE(int enable)
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341 {
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|
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342 int old_mode;
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343
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344 old_mode = SDL_TranslateUNICODE;
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345 if ( enable >= 0 ) {
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346 SDL_TranslateUNICODE = enable;
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|
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347 }
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|
|
348 return(old_mode);
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|
|
349 }
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|
|
350
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|
|
351 Uint8 * SDL_GetKeyState (int *numkeys)
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352 {
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|
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353 if ( numkeys != (int *)0 )
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354 *numkeys = SDLK_LAST;
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355 return(SDL_KeyState);
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|
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356 }
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|
|
357 SDLMod SDL_GetModState (void)
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|
358 {
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|
|
359 return(SDL_ModState);
|
|
|
360 }
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|
|
361 void SDL_SetModState (SDLMod modstate)
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|
|
362 {
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|
|
363 SDL_ModState = modstate;
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|
|
364 }
|
|
|
365
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|
|
366 char *SDL_GetKeyName(SDLKey key)
|
|
|
367 {
|
|
|
368 char *keyname;
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|
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369
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|
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370 keyname = NULL;
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|
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371 if ( key < SDLK_LAST ) {
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|
|
372 keyname = keynames[key];
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|
|
373 }
|
|
|
374 if ( keyname == NULL ) {
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|
|
375 keyname = "unknown key";
|
|
|
376 }
|
|
|
377 return(keyname);
|
|
|
378 }
|
|
|
379
|
|
|
380 /* These are global for SDL_eventloop.c */
|
|
|
381 int SDL_PrivateKeyboard(Uint8 state, SDL_keysym *keysym)
|
|
|
382 {
|
|
|
383 SDL_Event event;
|
|
|
384 int posted, repeatable;
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|
|
385 Uint16 modstate;
|
|
|
386
|
|
|
387 memset(&event, 0, sizeof(event));
|
|
|
388
|
|
|
389 #if 0
|
|
|
390 printf("The '%s' key has been %s\n", SDL_GetKeyName(keysym->sym),
|
|
|
391 state == SDL_PRESSED ? "pressed" : "released");
|
|
|
392 #endif
|
|
|
393 /* Set up the keysym */
|
|
|
394 modstate = (Uint16)SDL_ModState;
|
|
|
395
|
|
|
396 repeatable = 0;
|
|
|
397
|
|
|
398 if ( state == SDL_PRESSED ) {
|
|
|
399 keysym->mod = (SDLMod)modstate;
|
|
|
400 switch (keysym->sym) {
|
|
|
401 case SDLK_NUMLOCK:
|
|
|
402 modstate ^= KMOD_NUM;
|
|
|
403 if ( ! (modstate&KMOD_NUM) )
|
|
|
404 state = SDL_RELEASED;
|
|
|
405 keysym->mod = (SDLMod)modstate;
|
|
|
406 break;
|
|
|
407 case SDLK_CAPSLOCK:
|
|
|
408 modstate ^= KMOD_CAPS;
|
|
|
409 if ( ! (modstate&KMOD_CAPS) )
|
|
|
410 state = SDL_RELEASED;
|
|
|
411 keysym->mod = (SDLMod)modstate;
|
|
|
412 break;
|
|
|
413 case SDLK_LCTRL:
|
|
|
414 modstate |= KMOD_LCTRL;
|
|
|
415 break;
|
|
|
416 case SDLK_RCTRL:
|
|
|
417 modstate |= KMOD_RCTRL;
|
|
|
418 break;
|
|
|
419 case SDLK_LSHIFT:
|
|
|
420 modstate |= KMOD_LSHIFT;
|
|
|
421 break;
|
|
|
422 case SDLK_RSHIFT:
|
|
|
423 modstate |= KMOD_RSHIFT;
|
|
|
424 break;
|
|
|
425 case SDLK_LALT:
|
|
|
426 modstate |= KMOD_LALT;
|
|
|
427 break;
|
|
|
428 case SDLK_RALT:
|
|
|
429 modstate |= KMOD_RALT;
|
|
|
430 break;
|
|
|
431 case SDLK_LMETA:
|
|
|
432 modstate |= KMOD_LMETA;
|
|
|
433 break;
|
|
|
434 case SDLK_RMETA:
|
|
|
435 modstate |= KMOD_RMETA;
|
|
|
436 break;
|
|
|
437 case SDLK_MODE:
|
|
|
438 modstate |= KMOD_MODE;
|
|
|
439 break;
|
|
|
440 default:
|
|
|
441 repeatable = 1;
|
|
|
442 break;
|
|
|
443 }
|
|
|
444 } else {
|
|
|
445 switch (keysym->sym) {
|
|
|
446 case SDLK_NUMLOCK:
|
|
|
447 case SDLK_CAPSLOCK:
|
|
|
448 /* Only send keydown events */
|
|
|
449 return(0);
|
|
|
450 case SDLK_LCTRL:
|
|
|
451 modstate &= ~KMOD_LCTRL;
|
|
|
452 break;
|
|
|
453 case SDLK_RCTRL:
|
|
|
454 modstate &= ~KMOD_RCTRL;
|
|
|
455 break;
|
|
|
456 case SDLK_LSHIFT:
|
|
|
457 modstate &= ~KMOD_LSHIFT;
|
|
|
458 break;
|
|
|
459 case SDLK_RSHIFT:
|
|
|
460 modstate &= ~KMOD_RSHIFT;
|
|
|
461 break;
|
|
|
462 case SDLK_LALT:
|
|
|
463 modstate &= ~KMOD_LALT;
|
|
|
464 break;
|
|
|
465 case SDLK_RALT:
|
|
|
466 modstate &= ~KMOD_RALT;
|
|
|
467 break;
|
|
|
468 case SDLK_LMETA:
|
|
|
469 modstate &= ~KMOD_LMETA;
|
|
|
470 break;
|
|
|
471 case SDLK_RMETA:
|
|
|
472 modstate &= ~KMOD_RMETA;
|
|
|
473 break;
|
|
|
474 case SDLK_MODE:
|
|
|
475 modstate &= ~KMOD_MODE;
|
|
|
476 break;
|
|
|
477 default:
|
|
|
478 break;
|
|
|
479 }
|
|
|
480 keysym->mod = (SDLMod)modstate;
|
|
|
481 }
|
|
|
482
|
|
|
483 /* Figure out what type of event this is */
|
|
|
484 switch (state) {
|
|
|
485 case SDL_PRESSED:
|
|
|
486 event.type = SDL_KEYDOWN;
|
|
|
487 break;
|
|
|
488 case SDL_RELEASED:
|
|
|
489 event.type = SDL_KEYUP;
|
|
|
490 /*
|
|
|
491 * jk 991215 - Added
|
|
|
492 */
|
|
|
493 if ( SDL_KeyRepeat.timestamp ) {
|
|
|
494 SDL_KeyRepeat.timestamp = 0;
|
|
|
495 }
|
|
|
496 break;
|
|
|
497 default:
|
|
|
498 /* Invalid state -- bail */
|
|
|
499 return(0);
|
|
|
500 }
|
|
|
501
|
|
|
502 /* Drop events that don't change state */
|
|
|
503 if ( SDL_KeyState[keysym->sym] == state ) {
|
|
|
504 return(0);
|
|
|
505 }
|
|
|
506
|
|
|
507 /* Update internal keyboard state */
|
|
|
508 SDL_ModState = (SDLMod)modstate;
|
|
|
509 SDL_KeyState[keysym->sym] = state;
|
|
|
510
|
|
|
511 /* Post the event, if desired */
|
|
|
512 posted = 0;
|
|
|
513 if ( SDL_ProcessEvents[event.type] == SDL_ENABLE ) {
|
|
|
514 event.key.state = state;
|
|
|
515 event.key.keysym = *keysym;
|
|
|
516 if ( (SDL_EventOK == NULL) || SDL_EventOK(&event) ) {
|
|
|
517 posted = 1;
|
|
|
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 SDL_PushEvent(&event);
|
|
|
527 }
|
|
|
528 }
|
|
|
529 return(posted);
|
|
|
530 }
|
|
|
531
|
|
|
532 /*
|
|
|
533 * jk 991215 - Added
|
|
|
534 */
|
|
|
535 void SDL_CheckKeyRepeat(void)
|
|
|
536 {
|
|
|
537 if ( SDL_KeyRepeat.timestamp ) {
|
|
|
538 Uint32 now, interval;
|
|
|
539
|
|
|
540 now = SDL_GetTicks();
|
|
|
541 interval = (now - SDL_KeyRepeat.timestamp);
|
|
|
542 if ( SDL_KeyRepeat.firsttime ) {
|
|
|
543 if ( interval > (Uint32)SDL_KeyRepeat.delay ) {
|
|
|
544 SDL_KeyRepeat.timestamp = now;
|
|
|
545 SDL_KeyRepeat.firsttime = 0;
|
|
|
546 }
|
|
|
547 } else {
|
|
|
548 if ( interval > (Uint32)SDL_KeyRepeat.interval ) {
|
|
|
549 SDL_KeyRepeat.timestamp = now;
|
|
|
550 SDL_PushEvent(&SDL_KeyRepeat.evt);
|
|
|
551 }
|
|
|
552 }
|
|
|
553 }
|
|
|
554 }
|
|
|
555
|
|
|
556 int SDL_EnableKeyRepeat(int delay, int interval)
|
|
|
557 {
|
|
|
558 if ( delay < 0 ) {
|
|
|
559 SDL_SetError("keyboard repeat delay less than zero");
|
|
|
560 return(-1);
|
|
|
561 }
|
|
|
562 SDL_KeyRepeat.firsttime = 0;
|
|
|
563 SDL_KeyRepeat.delay = delay;
|
|
|
564 if ( interval < MINIMUM_REPEAT_INTERVAL ) {
|
|
|
565 SDL_KeyRepeat.interval = MINIMUM_REPEAT_INTERVAL;
|
|
|
566 } else {
|
|
|
567 SDL_KeyRepeat.interval = interval;
|
|
|
568 }
|
|
|
569 SDL_KeyRepeat.timestamp = 0;
|
|
|
570 return(0);
|
|
|
571 }
|
|
|
572
|
