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annotate src/events/SDL_touch.c @ 4644:fb500b3e1717

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Added pressure support for touch events.
author Jim Grandpre <jim.tla@gmail.com>
date Sat, 29 May 2010 02:09:16 -0400
parents 8806b78988f7
children 0375d020e7e3
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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 touch handling code for SDL */
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25
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26 #include "SDL_events.h"
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27 #include "SDL_events_c.h"
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28 #include "../video/SDL_sysvideo.h"
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29
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30
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31 static int SDL_num_touch = 0;
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32 static SDL_Touch **SDL_touchPads = NULL;
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33
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34
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35 /* Public functions */
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36 int
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37 SDL_TouchInit(void)
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38 {
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39 SDL_Touch touch;
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40 touch.pressure_max = 0;
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41 touch.pressure_min = 0;
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42 touch.id = 0; //Should be function?
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43
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44 SDL_AddTouch(&touch, "Touch1");
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45 return (0);
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46 }
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47
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48 SDL_Touch *
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49 SDL_GetTouch(int id)
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50 {
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51 int index = SDL_GetTouchIndexId(id);
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52 if (index < 0 || index >= SDL_num_touch) {
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53 return NULL;
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54 }
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55 return SDL_touchPads[index];
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56 }
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57
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58 SDL_Touch *
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59 SDL_GetTouchIndex(int index)
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60 {
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61 if (index < 0 || index >= SDL_num_touch) {
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62 return NULL;
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63 }
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64 return SDL_touchPads[index];
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65 }
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66
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67 int
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68 SDL_GetFingerIndexId(SDL_Touch* touch,int fingerid)
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69 {
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70 int i;
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71 for(i = 0;i < touch->num_fingers;i++)
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72 if(touch->fingers[i]->id == fingerid)
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73 return i;
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74 return -1;
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75 }
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76
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77
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78 SDL_Finger *
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79 SDL_GetFinger(SDL_Touch* touch,int id)
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80 {
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81 int index = SDL_GetFingerIndexId(touch,id);
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82 if(index < 0 || index >= touch->num_fingers)
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83 return NULL;
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84 return touch->fingers[index];
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85 }
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86
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87
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88 int
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89 SDL_GetTouchIndexId(int id)
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90 {
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91 int index;
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92 SDL_Touch *touch;
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93
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94 for (index = 0; index < SDL_num_touch; ++index) {
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95 touch = SDL_touchPads[index];
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96 if (touch->id == id) {
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97 return index;
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98 }
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99 }
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100 return -1;
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101 }
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102
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103 int
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104 SDL_AddTouch(const SDL_Touch * touch, char *name)
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105 {
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106 SDL_Touch **touchPads;
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107 int selected_touch;
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108 int index;
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109 size_t length;
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110
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111 if (SDL_GetTouchIndexId(touch->id) != -1) {
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112 SDL_SetError("Touch ID already in use");
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113 }
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114
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115 /* Add the touch to the list of touch */
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116 touchPads = (SDL_Touch **) SDL_realloc(SDL_touchPads,
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117 (SDL_num_touch + 1) * sizeof(*touch));
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118 if (!touchPads) {
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119 SDL_OutOfMemory();
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120 return -1;
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121 }
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122
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123 SDL_touchPads = touchPads;
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124 index = SDL_num_touch++;
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125
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126 SDL_touchPads[index] = (SDL_Touch *) SDL_malloc(sizeof(*SDL_touchPads[index]));
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127 if (!SDL_touchPads[index]) {
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128 SDL_OutOfMemory();
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129 return -1;
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130 }
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131 *SDL_touchPads[index] = *touch;
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132
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133 /* we're setting the touch properties */
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134 length = 0;
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135 length = SDL_strlen(name);
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136 SDL_touchPads[index]->focus = 0;
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137 SDL_touchPads[index]->name = SDL_malloc((length + 2) * sizeof(char));
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138 SDL_strlcpy(SDL_touchPads[index]->name, name, length + 1);
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139
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140 SDL_touchPads[index]->num_fingers = 0;
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141 SDL_touchPads[index]->buttonstate = 0;
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142 SDL_touchPads[index]->relative_mode = SDL_FALSE;
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143 SDL_touchPads[index]->flush_motion = SDL_FALSE;
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144
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145 return index;
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146 }
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147
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148 void
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149 SDL_DelTouch(int id)
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150 {
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151 int index = SDL_GetTouchIndexId(id);
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152 SDL_Touch *touch = SDL_GetTouch(id);
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153
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154 if (!touch) {
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155 return;
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156 }
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157
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158
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159 SDL_free(touch->name);
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160
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161 if (touch->FreeTouch) {
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162 touch->FreeTouch(touch);
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163 }
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164 SDL_free(touch);
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165
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166 SDL_num_touch--;
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167 SDL_touchPads[index] = SDL_touchPads[SDL_num_touch];
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168 }
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169
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170 void
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171 SDL_TouchQuit(void)
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172 {
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173 int i;
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174
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175 for (i = SDL_num_touch-1; i > 0 ; --i) {
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176 SDL_DelTouch(i);
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177 }
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178 SDL_num_touch = 0;
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179
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180 if (SDL_touchPads) {
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181 SDL_free(SDL_touchPads);
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182 SDL_touchPads = NULL;
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183 }
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184 }
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185
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186 int
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187 SDL_GetNumTouch(void)
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188 {
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189 return SDL_num_touch;
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190 }
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191 SDL_Window *
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192 SDL_GetTouchFocusWindow(int id)
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193 {
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194 SDL_Touch *touch = SDL_GetTouch(id);
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195
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196 if (!touch) {
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197 return 0;
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198 }
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199 return touch->focus;
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200 }
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201
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202 void
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203 SDL_SetTouchFocus(int id, SDL_Window * window)
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204 {
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205 int index = SDL_GetTouchIndexId(id);
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206 SDL_Touch *touch = SDL_GetTouch(id);
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207 int i;
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208 SDL_bool focus;
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209
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210 if (!touch || (touch->focus == window)) {
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211 return;
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212 }
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213
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214 /* See if the current window has lost focus */
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215 if (touch->focus) {
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216 focus = SDL_FALSE;
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217 for (i = 0; i < SDL_num_touch; ++i) {
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218 SDL_Touch *check;
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219 if (i != index) {
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220 check = SDL_touchPads[i];
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221 if (check && check->focus == touch->focus) {
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222 focus = SDL_TRUE;
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223 break;
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224 }
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225 }
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226 }
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227 if (!focus) {
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228 SDL_SendWindowEvent(touch->focus, SDL_WINDOWEVENT_LEAVE, 0, 0);
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229 }
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230 }
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231
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232 touch->focus = window;
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233
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234 if (touch->focus) {
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235 focus = SDL_FALSE;
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236 for (i = 0; i < SDL_num_touch; ++i) {
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237 SDL_Touch *check;
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238 if (i != index) {
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239 check = SDL_touchPads[i];
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240 if (check && check->focus == touch->focus) {
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241 focus = SDL_TRUE;
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242 break;
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243 }
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244 }
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245 }
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246 if (!focus) {
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247 SDL_SendWindowEvent(touch->focus, SDL_WINDOWEVENT_ENTER, 0, 0);
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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248 }
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249 }
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250 }
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251
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252 int
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253 SDL_AddFinger(SDL_Touch* touch,SDL_Finger* finger)
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254 {
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255 int index;
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256 SDL_Finger **fingers;
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257 size_t length;
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258
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259 if (SDL_GetFingerIndexId(touch,finger->id) != -1) {
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260 SDL_SetError("Finger ID already in use");
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261 }
4640
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262
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263 /* Add the touch to the list of touch */
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264 fingers = (SDL_Finger **) SDL_realloc(touch->fingers,
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265 (touch->num_fingers + 1) * sizeof(*touch));
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266 if (!fingers) {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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267 SDL_OutOfMemory();
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268 return -1;
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269 }
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270
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271 touch->fingers = fingers;
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272 index = touch->num_fingers++;
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273
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274 touch->fingers[index] = (SDL_Finger *) SDL_malloc(sizeof(*(touch->fingers[index])));
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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275 if (!touch->fingers[index]) {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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276 SDL_OutOfMemory();
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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277 return -1;
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278 }
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279 *touch->fingers[index] = *finger;
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280
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281 return index;
4640
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282 }
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283
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284 int
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285 SDL_DelFinger(SDL_Touch* touch,int fingerid)
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286 {
4642
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287 int index = SDL_GetFingerIndexId(touch,fingerid);
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288 SDL_Finger* finger = SDL_GetFinger(touch,fingerid);
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289
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290 if (!finger) {
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291 return;
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292 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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293
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294
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295 SDL_free(finger);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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296 touch->num_fingers--;
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297 touch->fingers[index] = touch->fingers[touch->num_fingers];
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298 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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299
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diff changeset
300
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
301 int
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
302 SDL_SendFingerDown(int id, int fingerid, SDL_bool down, int x, int y, int pressure)
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
303 {
4643
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304 int posted;
4641
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diff changeset
305 SDL_Touch* touch = SDL_GetTouch(id);
4643
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diff changeset
306
4641
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diff changeset
307 if(down) {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
308 SDL_Finger nf;
4643
8806b78988f7 Bug fixes. Basic touch events (finger up, finger down, finger move) supported.
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diff changeset
309 nf.id = fingerid;
4641
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diff changeset
310 nf.x = x;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
311 nf.y = y;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
312 nf.pressure = pressure;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
313 nf.xdelta = 0;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
314 nf.ydelta = 0;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
315 nf.last_x = x;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
316 nf.last_y = y;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
317 SDL_AddFinger(touch,&nf);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
318
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
319 posted = 0;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
320 if (SDL_GetEventState(SDL_FINGERDOWN) == SDL_ENABLE) {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
321 SDL_Event event;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
322 event.tfinger.type = SDL_FINGERDOWN;
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diff changeset
323 event.tfinger.touchId = (Uint8) id;
4642
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diff changeset
324 event.tfinger.x = x;
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
325 event.tfinger.y = y;
4641
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diff changeset
326 event.tfinger.state = touch->buttonstate;
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diff changeset
327 event.tfinger.windowID = touch->focus ? touch->focus->id : 0;
4643
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diff changeset
328 event.tfinger.fingerId = fingerid;
4641
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diff changeset
329 posted = (SDL_PushEvent(&event) > 0);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
330 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
331 return posted;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
332 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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parents: 4640
diff changeset
333 else {
4643
8806b78988f7 Bug fixes. Basic touch events (finger up, finger down, finger move) supported.
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parents: 4642
diff changeset
334 SDL_DelFinger(touch,fingerid);
4641
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diff changeset
335 posted = 0;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
336 if (SDL_GetEventState(SDL_FINGERUP) == SDL_ENABLE) {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
337 SDL_Event event;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
338 event.tfinger.type = SDL_FINGERUP;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
339 event.tfinger.touchId = (Uint8) id;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
340 event.tfinger.state = touch->buttonstate;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
341 event.tfinger.windowID = touch->focus ? touch->focus->id : 0;
4643
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diff changeset
342 event.tfinger.fingerId = fingerid;
4641
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diff changeset
343 posted = (SDL_PushEvent(&event) > 0);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
344 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
345 return posted;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
346 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
347 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
348
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
349 int
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diff changeset
350 SDL_SendTouchMotion(int id, int fingerid, int relative,
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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parents: 4640
diff changeset
351 int x, int y, int pressure)
4640
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diff changeset
352 {
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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diff changeset
353 int index = SDL_GetTouchIndexId(id);
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354 SDL_Touch *touch = SDL_GetTouch(id);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
355 SDL_Finger *finger = SDL_GetFinger(touch,fingerid);
4640
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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diff changeset
356 int posted;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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diff changeset
357 int xrel;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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diff changeset
358 int yrel;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
359 int x_max = 0, y_max = 0;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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diff changeset
360
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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diff changeset
361 if (!touch || touch->flush_motion) {
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
362 return 0;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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diff changeset
363 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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diff changeset
364
4642
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diff changeset
365 if(finger == NULL)
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
366 SDL_SendFingerDown(id,fingerid,SDL_TRUE,x,y,pressure);
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
367 else {
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
368 /* the relative motion is calculated regarding the last position */
057e8762d2a1 Added reading of event* for touch events.
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parents: 4641
diff changeset
369 if (relative) {
057e8762d2a1 Added reading of event* for touch events.
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parents: 4641
diff changeset
370 xrel = x;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
371 yrel = y;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
372 x = (finger->last_x + x);
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
373 y = (finger->last_y + y);
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
374 } else {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
375 if(x < 0) x = finger->last_x; /*If movement is only in one axis,*/
057e8762d2a1 Added reading of event* for touch events.
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parents: 4641
diff changeset
376 if(y < 0) y = finger->last_y; /*The other is marked as -1*/
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
377 xrel = x - finger->last_x;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
378 yrel = y - finger->last_y;
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
379 }
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
380
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
381 /* Drop events that don't change state */
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
382 if (!xrel && !yrel) {
4640
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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383 #if 0
4642
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diff changeset
384 printf("Touch event didn't change state - dropped!\n");
4640
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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diff changeset
385 #endif
4642
057e8762d2a1 Added reading of event* for touch events.
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386 return 0;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
387 }
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
388
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
389 /* Update internal touch coordinates */
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
390
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
391 finger->x = x;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
392 finger->y = y;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
393
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
394 /*Should scale to window? Normalize? Maintain Aspect?*/
057e8762d2a1 Added reading of event* for touch events.
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parents: 4641
diff changeset
395 //SDL_GetWindowSize(touch->focus, &x_max, &y_max);
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
396
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
397 /* make sure that the pointers find themselves inside the windows */
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
398 /* only check if touch->xmax is set ! */
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
399 /*
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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400 if (x_max && touch->x > x_max) {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
401 touch->x = x_max;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
402 } else if (touch->x < 0) {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
403 touch->x = 0;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
404 }
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
405
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
406 if (y_max && touch->y > y_max) {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
407 touch->y = y_max;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
408 } else if (touch->y < 0) {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
409 touch->y = 0;
057e8762d2a1 Added reading of event* for touch events.
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parents: 4641
diff changeset
410 }
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
411 */
057e8762d2a1 Added reading of event* for touch events.
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parents: 4641
diff changeset
412 finger->xdelta += xrel;
057e8762d2a1 Added reading of event* for touch events.
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parents: 4641
diff changeset
413 finger->ydelta += yrel;
057e8762d2a1 Added reading of event* for touch events.
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parents: 4641
diff changeset
414 finger->pressure = pressure;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
415
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
416
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
417
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
418 /* Post the event, if desired */
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
419 posted = 0;
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
420 if (SDL_GetEventState(SDL_FINGERMOTION) == SDL_ENABLE) {
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
421 SDL_Event event;
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
422 event.tfinger.type = SDL_FINGERMOTION;
4643
8806b78988f7 Bug fixes. Basic touch events (finger up, finger down, finger move) supported.
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parents: 4642
diff changeset
423 event.tfinger.touchId = (Uint8) id;
8806b78988f7 Bug fixes. Basic touch events (finger up, finger down, finger move) supported.
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parents: 4642
diff changeset
424 event.tfinger.fingerId = (Uint8) fingerid;
4642
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diff changeset
425 event.tfinger.x = x;
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
426 event.tfinger.y = y;
4644
fb500b3e1717 Added pressure support for touch events.
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parents: 4643
diff changeset
427 event.tfinger.pressure = pressure;
4642
057e8762d2a1 Added reading of event* for touch events.
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428 event.tfinger.state = touch->buttonstate;
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
429 event.tfinger.windowID = touch->focus ? touch->focus->id : 0;
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
430 posted = (SDL_PushEvent(&event) > 0);
057e8762d2a1 Added reading of event* for touch events.
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parents: 4641
diff changeset
431 }
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
432 finger->last_x = finger->x;
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
433 finger->last_y = finger->y;
057e8762d2a1 Added reading of event* for touch events.
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parents: 4641
diff changeset
434 return posted;
4640
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
435 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
436 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
437 int
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
438 SDL_SendTouchButton(int id, Uint8 state, Uint8 button)
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
439 {
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
440 SDL_Touch *touch = SDL_GetTouch(id);
4640
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
441 int posted;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
442 Uint32 type;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
443
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
444 if (!touch) {
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
445 return 0;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
446 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
447
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
448 /* Figure out which event to perform */
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
449 switch (state) {
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
450 case SDL_PRESSED:
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
451 if (touch->buttonstate & SDL_BUTTON(button)) {
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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parents:
diff changeset
452 /* Ignore this event, no state change */
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
453 return 0;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
454 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
455 type = SDL_TOUCHBUTTONDOWN;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
456 touch->buttonstate |= SDL_BUTTON(button);
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
457 break;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
458 case SDL_RELEASED:
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
459 if (!(touch->buttonstate & SDL_BUTTON(button))) {
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
460 /* Ignore this event, no state change */
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
461 return 0;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
462 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
463 type = SDL_TOUCHBUTTONUP;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
464 touch->buttonstate &= ~SDL_BUTTON(button);
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
465 break;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
466 default:
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
467 /* Invalid state -- bail */
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
468 return 0;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
469 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
470
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
471 /* Post the event, if desired */
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
472 posted = 0;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
473 if (SDL_GetEventState(type) == SDL_ENABLE) {
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
474 SDL_Event event;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
475 event.type = type;
4642
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
476 event.tbutton.touchId = (Uint8) index;
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
477 event.tbutton.state = state;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
478 event.tbutton.button = button;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
479 event.tbutton.windowID = touch->focus ? touch->focus->id : 0;
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f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
480 posted = (SDL_PushEvent(&event) > 0);
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
481 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
482 return posted;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
483 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
484
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
485 char *
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
486 SDL_GetTouchName(int id)
4640
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
487 {
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
488 SDL_Touch *touch = SDL_GetTouch(id);
4640
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
489 if (!touch) {
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
490 return NULL;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
491 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
492 return touch->name;
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
493 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
494
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
495 /* vi: set ts=4 sw=4 expandtab: */