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annotate src/events/SDL_touch.c @ 4641:49a97daea6ec

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Added touch event definitions. Heavily modified events/SDL_touch*.
author Jim Grandpre <jim.tla@gmail.com>
date Thu, 27 May 2010 01:21:37 -0400
parents f068a6dfc858
children 057e8762d2a1
rev   line source
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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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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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 return (0);
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40 }
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41 SDL_Touch *
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42 SDL_GetTouch(int id)
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43 {
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44 int index = SDL_GetTouchIndexId(id);
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45 if (index < 0 || index >= SDL_num_touch) {
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46 return NULL;
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47 }
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48 return SDL_touchPads[index];
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49 }
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50
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51 SDL_Finger *
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52 SDL_GetFinger(SDL_Touch* touch,int id)
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53 {
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54 int index = SDL_GetFingerIndexId(touch,id);
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55 if(index < 0 || index >= touch->num_fingers)
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56 return NULL;
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57 return touch->fingers[index];
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58 }
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59
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60 int
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61 SDL_GetFingerIndexId(SDL_Touch* touch,int fingerid)
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62 {
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63 int i;
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64 for(i = 0;i < touch->num_fingers;i++)
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65 if(touch->fingers[i]->id == fingerid)
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66 return i;
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67 return -1;
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68 }
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69
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70 int
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71 SDL_GetTouchIndexId(int id)
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72 {
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73 int index;
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74 SDL_Touch *touch;
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75
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76 for (index = 0; index < SDL_num_touch; ++index) {
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77 touch = SDL_touchPads[index];
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78 if (touch->id == id) {
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79 return index;
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80 }
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81 }
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82 return -1;
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83 }
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84
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85 int
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86 SDL_AddTouch(const SDL_Touch * touch, char *name, int pressure_max,
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87 int pressure_min, int ends)
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88 {
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89 SDL_Touch **touchPads;
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90 int selected_touch;
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91 int index;
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92 size_t length;
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93
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94 if (SDL_GetTouchIndexId(touch->id) != -1) {
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95 SDL_SetError("Touch ID already in use");
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96 }
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97
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98 /* Add the touch to the list of touch */
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99 touchPads = (SDL_Touch **) SDL_realloc(SDL_touchPads,
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100 (SDL_num_touch + 1) * sizeof(*touch));
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101 if (!touchPads) {
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102 SDL_OutOfMemory();
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103 return -1;
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104 }
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105
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106 SDL_touchPads = touchPads;
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107 index = SDL_num_touch++;
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108
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109 SDL_touchPads[index] = (SDL_Touch *) SDL_malloc(sizeof(*SDL_touchPads[index]));
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110 if (!SDL_touchPads[index]) {
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111 SDL_OutOfMemory();
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112 return -1;
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113 }
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114 *SDL_touchPads[index] = *touch;
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115
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116 /* we're setting the touch properties */
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117 length = 0;
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118 length = SDL_strlen(name);
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119 SDL_touchPads[index]->focus = 0;
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120 SDL_touchPads[index]->name = SDL_malloc((length + 2) * sizeof(char));
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121 SDL_strlcpy(SDL_touchPads[index]->name, name, length + 1);
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122 SDL_touchPads[index]->pressure_max = pressure_max;
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123 SDL_touchPads[index]->pressure_min = pressure_min;
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124
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125
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126 return index;
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127 }
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128
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129 void
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130 SDL_DelTouch(int id)
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131 {
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132 int index = SDL_GetTouchIndexId(id);
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133 SDL_Touch *touch = SDL_GetTouch(id);
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134
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135 if (!touch) {
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136 return;
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137 }
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138
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139
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140 SDL_free(touch->name);
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141
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142 if (touch->FreeTouch) {
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143 touch->FreeTouch(touch);
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144 }
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145 SDL_free(touch);
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146
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147 SDL_num_touch--;
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148 SDL_touchPads[index] = SDL_touchPads[SDL_num_touch];
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149 }
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150
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151 void
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152 SDL_TouchQuit(void)
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153 {
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154 int i;
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155
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156 for (i = SDL_num_touch-1; i > 0 ; --i) {
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157 SDL_DelTouch(i);
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158 }
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159 SDL_num_touch = 0;
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160
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161 if (SDL_touchPads) {
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162 SDL_free(SDL_touchPads);
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163 SDL_touchPads = NULL;
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164 }
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165 }
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166
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167 int
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168 SDL_GetNumTouch(void)
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169 {
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170 return SDL_num_touch;
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171 }
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172 SDL_Window *
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173 SDL_GetTouchFocusWindow(int id)
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174 {
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175 SDL_Touch *touch = SDL_GetTouch(id);
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176
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177 if (!touch) {
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178 return 0;
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179 }
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180 return touch->focus;
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181 }
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182
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183 void
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184 SDL_SetTouchFocus(int id, SDL_Window * window)
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185 {
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186 int index = SDL_GetTouchIndexId(id);
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187 SDL_Touch *touch = SDL_GetTouch(id);
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188 int i;
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189 SDL_bool focus;
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190
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191 if (!touch || (touch->focus == window)) {
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192 return;
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193 }
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194
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195 /* See if the current window has lost focus */
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196 if (touch->focus) {
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197 focus = SDL_FALSE;
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198 for (i = 0; i < SDL_num_touch; ++i) {
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199 SDL_Touch *check;
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200 if (i != index) {
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201 check = SDL_touchPads[i];
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202 if (check && check->focus == touch->focus) {
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203 focus = SDL_TRUE;
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204 break;
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205 }
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206 }
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207 }
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208 if (!focus) {
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209 SDL_SendWindowEvent(touch->focus, SDL_WINDOWEVENT_LEAVE, 0, 0);
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210 }
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211 }
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212
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213 touch->focus = window;
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214
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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_ENTER, 0, 0);
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229 }
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230 }
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231 }
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232
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233 int
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234 SDL_AddFinger(SDL_Touch* touch,SDL_Finger* finger)
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235 {
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236 int index;
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237 SDL_Finger **fingers;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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238 size_t length;
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239
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240 if (SDL_GetFingerIndexId(touch,finger->id) != -1) {
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241 SDL_SetError("Finger ID already in use");
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242 }
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243
4641
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244 /* Add the touch to the list of touch */
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245 fingers = (SDL_Finger **) SDL_realloc(touch->fingers,
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246 (touch->num_fingers + 1) * sizeof(*touch));
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247 if (!fingers) {
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248 SDL_OutOfMemory();
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249 return -1;
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250 }
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251
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252 touch->fingers = fingers;
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253 index = SDL_num_touch++;
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254
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255 touch->fingers[index] = (SDL_Finger *) SDL_malloc(sizeof(*(touch->fingers[index])));
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256 if (!touch->fingers[index]) {
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257 SDL_OutOfMemory();
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258 return -1;
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259 }
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260 *touch->fingers[index] = *finger;
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261
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262 return index;
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263 }
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264
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265 int
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266 SDL_DelFinger(SDL_Touch* touch,int fingerid)
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267 {
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268 int index = SLD_GetFingerIndexId(touch,fingerid);
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269 SDL_Finger* finger = SDL_GetFinger(touch,fingerid);
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270
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271 if (!finger) {
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272 return;
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273 }
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274
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275
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276 SDL_free(finger);
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277 touch->num_fingers--;
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278 touch->fingers[index] = touch->fingers[touch->num_fingers];
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279 }
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280
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281
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282 int
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283 SDL_SendFingerDown(int id, int fingerid, SDL_bool down, int x, int y, int pressure)
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284 {
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285 SDL_Touch* touch = SDL_GetTouch(id);
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286 if(down) {
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287 SDL_Finger nf;
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288 nf.id = id;
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289 nf.x = x;
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290 nf.y = y;
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291 nf.pressure = pressure;
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292 nf.xdelta = 0;
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293 nf.ydelta = 0;
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294 nf.last_x = x;
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295 nf.last_y = y;
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296 SDL_AddFinger(touch,&nf);
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297
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298 posted = 0;
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299 if (SDL_GetEventState(SDL_FINGERDOWN) == SDL_ENABLE) {
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300 SDL_Event event;
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301 event.tfinger.type = SDL_FINGERDOWN;
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diff changeset
302 event.tfinger.touchId = (Uint8) id;
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303 event.tfinger.state = touch->buttonstate;
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304 event.tfinger.windowID = touch->focus ? touch->focus->id : 0;
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305 event.fingerId = id;
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306 posted = (SDL_PushEvent(&event) > 0);
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diff changeset
307 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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308 return posted;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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309 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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310 else {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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311 SDL_DelFinger(touch,id);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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312 posted = 0;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
313 if (SDL_GetEventState(SDL_FINGERUP) == SDL_ENABLE) {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
314 SDL_Event event;
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diff changeset
315 event.tfinger.type = SDL_FINGERUP;
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diff changeset
316 event.tfinger.touchId = (Uint8) id;
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diff changeset
317 event.tfinger.state = touch->buttonstate;
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diff changeset
318 event.tfinger.windowID = touch->focus ? touch->focus->id : 0;
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diff changeset
319 event.fingerId = id;
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320 posted = (SDL_PushEvent(&event) > 0);
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diff changeset
321 }
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diff changeset
322 return posted;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
323 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
324 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
325
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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326 int
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327 SDL_SendTouchMotion(int id, int fingerid, int relative,
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
328 int x, int y, int pressure)
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329 {
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330 int index = SDL_GetTouchIndexId(id);
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diff changeset
331 SDL_Touch *touch = SDL_GetTouch(id);
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diff changeset
332 SDL_Finger *finger = SDL_GetFinger(touch,fingerid);
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diff changeset
333 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
334 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
335 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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336 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
337
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
338 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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diff changeset
339 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
340 }
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
341
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
342 /* the relative motion is calculated regarding the system cursor last position */
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
343 if (relative) {
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
344 xrel = x;
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
345 yrel = y;
4641
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diff changeset
346 x = (finger->last_x + x);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
347 y = (finger->last_y + y);
4640
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diff changeset
348 } else {
4641
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diff changeset
349 xrel = x - finger->last_x;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
350 yrel = y - finger->last_y;
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
351 }
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
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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parents:
diff changeset
353 /* Drop events that don't change 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
354 if (!xrel && !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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diff changeset
355 #if 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
356 printf("Touch event didn't change state - dropped!\n");
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 #endif
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 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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parents:
diff changeset
359 }
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
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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parents:
diff changeset
361 /* Update internal touch coordinates */
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
362
4641
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diff changeset
363 finger->x = x;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
364 finger->y = y;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
365
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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parents: 4640
diff changeset
366 /*Should scale to window? Normalize? Maintain Aspect?*/
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
367 //SDL_GetWindowSize(touch->focus, &x_max, &y_max);
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
368
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
369 /* make sure that the pointers find themselves inside the windows */
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
370 /* only check if touch->xmax is set ! */
4641
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diff changeset
371 /*
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
372 if (x_max && touch->x > x_max) {
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
373 touch->x = x_max;
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
374 } else if (touch->x < 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
375 touch->x = 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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376 }
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
377
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
378 if (y_max && touch->y > y_max) {
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
379 touch->y = y_max;
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
380 } else if (touch->y < 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
381 touch->y = 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
382 }
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
383 */
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
384 finger->xdelta += xrel;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
385 finger->ydelta += yrel;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
386 finger->pressure = pressure;
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
387
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
388
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
389
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
390 /* 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.
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parents:
diff changeset
391 posted = 0;
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
392 if (SDL_GetEventState(SDL_FINGERMOTION) == SDL_ENABLE) {
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
393 SDL_Event event;
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
394 event.tfinger.type = SDL_FINGERMOTION;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
395 event.tfinger.which = (Uint8) index;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
396 event.tfinger.state = touch->buttonstate;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
397 event.tfinger.windowID = touch->focus ? touch->focus->id : 0;
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
398 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
399 }
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
400 finger->last_x = finger->x;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
401 finger->last_y = finger->y;
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
402 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
403 }
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
404
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
405 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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diff changeset
406 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
407 {
4641
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diff changeset
408 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
409 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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parents:
diff changeset
410 Uint32 type;
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
411
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
412 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
413 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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parents:
diff changeset
414 }
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
415
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
416 /* 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
417 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
418 case SDL_PRESSED:
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
419 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
420 /* 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
421 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
422 }
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
423 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
424 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
425 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
426 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
427 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
428 /* 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
429 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
430 }
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
431 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
432 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
433 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
434 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
435 /* 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
436 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
437 }
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
438
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 /* 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
440 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
441 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
442 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
443 event.type = type;
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
444 event.tbutton.which = (Uint8) index;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
445 event.tbutton.state = state;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
446 event.tbutton.button = button;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
447 event.tbutton.windowID = touch->focus ? touch->focus->id : 0;
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
448 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
449 }
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
450 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
451 }
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
452
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
453 char *
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
454 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
455 {
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
456 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
457 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
458 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
459 }
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 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
461 }
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 /* vi: set ts=4 sw=4 expandtab: */