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annotate src/events/SDL_touch.c @ 4646:eea1bf53effa

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Added include/touch.h Now reading in resolution of touch pad.
author Jim Grandpre <jim.tla@gmail.com>
date Tue, 01 Jun 2010 02:54:33 -0400
parents 0375d020e7e3
children 0350b634c044
rev   line source
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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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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
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40 return (0);
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41 }
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42
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43 SDL_Touch *
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44 SDL_GetTouch(int id)
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45 {
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46 int index = SDL_GetTouchIndexId(id);
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47 if (index < 0 || index >= SDL_num_touch) {
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48 return NULL;
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49 }
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50 return SDL_touchPads[index];
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51 }
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52
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53 SDL_Touch *
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54 SDL_GetTouchIndex(int index)
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55 {
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56 if (index < 0 || index >= SDL_num_touch) {
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57 return NULL;
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58 }
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59 return SDL_touchPads[index];
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60 }
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61
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62 int
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63 SDL_GetFingerIndexId(SDL_Touch* touch,int fingerid)
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64 {
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65 int i;
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66 for(i = 0;i < touch->num_fingers;i++)
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67 if(touch->fingers[i]->id == fingerid)
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68 return i;
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69 return -1;
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70 }
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71
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72
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73 SDL_Finger *
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74 SDL_GetFinger(SDL_Touch* touch,int id)
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75 {
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76 int index = SDL_GetFingerIndexId(touch,id);
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77 if(index < 0 || index >= touch->num_fingers)
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78 return NULL;
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79 return touch->fingers[index];
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80 }
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81
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82
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83 int
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84 SDL_GetTouchIndexId(int id)
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85 {
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86 int index;
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87 SDL_Touch *touch;
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88
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89 for (index = 0; index < SDL_num_touch; ++index) {
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90 touch = SDL_touchPads[index];
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91 if (touch->id == id) {
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92 return index;
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93 }
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94 }
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95 return -1;
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96 }
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97
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98 int
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99 SDL_AddTouch(const SDL_Touch * touch, char *name)
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100 {
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101 SDL_Touch **touchPads;
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102 int selected_touch;
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103 int index;
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104 size_t length;
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105
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106 if (SDL_GetTouchIndexId(touch->id) != -1) {
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107 SDL_SetError("Touch ID already in use");
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108 }
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109
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110 /* Add the touch to the list of touch */
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111 touchPads = (SDL_Touch **) SDL_realloc(SDL_touchPads,
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112 (SDL_num_touch + 1) * sizeof(*touch));
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113 if (!touchPads) {
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114 SDL_OutOfMemory();
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115 return -1;
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116 }
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117
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118 SDL_touchPads = touchPads;
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119 index = SDL_num_touch++;
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120
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121 SDL_touchPads[index] = (SDL_Touch *) SDL_malloc(sizeof(*SDL_touchPads[index]));
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122 if (!SDL_touchPads[index]) {
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123 SDL_OutOfMemory();
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124 return -1;
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125 }
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126 *SDL_touchPads[index] = *touch;
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127
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128 /* we're setting the touch properties */
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129 length = 0;
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130 length = SDL_strlen(name);
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131 SDL_touchPads[index]->focus = 0;
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132 SDL_touchPads[index]->name = SDL_malloc((length + 2) * sizeof(char));
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133 SDL_strlcpy(SDL_touchPads[index]->name, name, length + 1);
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134
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135 SDL_touchPads[index]->num_fingers = 0;
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136 SDL_touchPads[index]->max_fingers = 1;
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137 SDL_touchPads[index]->fingers = (SDL_Finger **) SDL_malloc(sizeof(SDL_Finger*));
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138 SDL_touchPads[index]->fingers[0] = NULL;
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139 SDL_touchPads[index]->buttonstate = 0;
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140 SDL_touchPads[index]->relative_mode = SDL_FALSE;
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141 SDL_touchPads[index]->flush_motion = SDL_FALSE;
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142
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143 return index;
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144 }
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145
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146 void
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147 SDL_DelTouch(int id)
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148 {
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149 int index = SDL_GetTouchIndexId(id);
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150 SDL_Touch *touch = SDL_GetTouch(id);
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151
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152 if (!touch) {
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153 return;
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154 }
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155
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156
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157 SDL_free(touch->name);
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158
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159 if (touch->FreeTouch) {
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160 touch->FreeTouch(touch);
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161 }
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162 SDL_free(touch);
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163
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164 SDL_num_touch--;
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165 SDL_touchPads[index] = SDL_touchPads[SDL_num_touch];
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166 }
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167
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168 void
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169 SDL_TouchQuit(void)
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170 {
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171 int i;
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172
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173 for (i = SDL_num_touch-1; i > 0 ; --i) {
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174 SDL_DelTouch(i);
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175 }
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176 SDL_num_touch = 0;
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177
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178 if (SDL_touchPads) {
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179 SDL_free(SDL_touchPads);
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180 SDL_touchPads = NULL;
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181 }
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182 }
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183
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184 int
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185 SDL_GetNumTouch(void)
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186 {
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187 return SDL_num_touch;
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188 }
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189 SDL_Window *
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190 SDL_GetTouchFocusWindow(int id)
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191 {
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192 SDL_Touch *touch = SDL_GetTouch(id);
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193
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194 if (!touch) {
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195 return 0;
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196 }
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197 return touch->focus;
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198 }
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199
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200 void
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201 SDL_SetTouchFocus(int id, SDL_Window * window)
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202 {
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203 int index = SDL_GetTouchIndexId(id);
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204 SDL_Touch *touch = SDL_GetTouch(id);
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205 int i;
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206 SDL_bool focus;
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207
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208 if (!touch || (touch->focus == window)) {
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209 return;
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210 }
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211
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212 /* See if the current window has lost focus */
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213 if (touch->focus) {
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214 focus = SDL_FALSE;
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215 for (i = 0; i < SDL_num_touch; ++i) {
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216 SDL_Touch *check;
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217 if (i != index) {
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218 check = SDL_touchPads[i];
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219 if (check && check->focus == touch->focus) {
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220 focus = SDL_TRUE;
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221 break;
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222 }
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223 }
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224 }
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225 if (!focus) {
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226 SDL_SendWindowEvent(touch->focus, SDL_WINDOWEVENT_LEAVE, 0, 0);
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227 }
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228 }
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229
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230 touch->focus = window;
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231
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232 if (touch->focus) {
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233 focus = SDL_FALSE;
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234 for (i = 0; i < SDL_num_touch; ++i) {
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235 SDL_Touch *check;
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236 if (i != index) {
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237 check = SDL_touchPads[i];
4640
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238 if (check && check->focus == touch->focus) {
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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239 focus = SDL_TRUE;
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240 break;
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241 }
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242 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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243 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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244 if (!focus) {
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245 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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246 }
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247 }
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248 }
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249
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250 int
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251 SDL_AddFinger(SDL_Touch* touch,SDL_Finger* finger)
4640
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252 {
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253 int index;
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254 SDL_Finger **fingers;
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255 size_t length;
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256 //printf("Adding Finger...\n");
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257 if (SDL_GetFingerIndexId(touch,finger->id) != -1) {
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258 SDL_SetError("Finger ID already in use");
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259 }
4640
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260
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261 /* Add the touch to the list of touch */
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262 if(touch->num_fingers >= touch->max_fingers){
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263 printf("Making room for it!\n");
eea1bf53effa Added include/touch.h Now reading in resolution of touch pad.
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diff changeset
264 fingers = (SDL_Finger **) SDL_realloc(touch->fingers,
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265 (touch->num_fingers + 1) * sizeof(SDL_Finger *));
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266 touch->max_fingers = touch->num_fingers+1;
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diff changeset
267 if (!fingers) {
eea1bf53effa Added include/touch.h Now reading in resolution of touch pad.
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diff changeset
268 SDL_OutOfMemory();
eea1bf53effa Added include/touch.h Now reading in resolution of touch pad.
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269 return -1;
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270 }
eea1bf53effa Added include/touch.h Now reading in resolution of touch pad.
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diff changeset
271 else {
eea1bf53effa Added include/touch.h Now reading in resolution of touch pad.
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diff changeset
272 touch->max_fingers = touch->num_fingers+1;
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273 touch->fingers = fingers;
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274 }
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275 }
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276
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277 index = touch->num_fingers;
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diff changeset
278 //printf("Max_Fingers: %i Index: %i\n",touch->max_fingers,index);
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279
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280 touch->fingers[index] = (SDL_Finger *) SDL_malloc(sizeof(SDL_Finger));
4641
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diff changeset
281 if (!touch->fingers[index]) {
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diff changeset
282 SDL_OutOfMemory();
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283 return -1;
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284 }
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285 *(touch->fingers[index]) = *finger;
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diff changeset
286 touch->num_fingers++;
4641
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287
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288 return index;
4640
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289 }
f068a6dfc858 Added SDL_touch.c/SDL_touch_c.h as slightly modifeind SDL_mouse*. Made reads in touchSimp non-blocking.
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290
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291 int
4641
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292 SDL_DelFinger(SDL_Touch* touch,int fingerid)
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diff changeset
293 {
4642
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294 int index = SDL_GetFingerIndexId(touch,fingerid);
4641
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295 SDL_Finger* finger = SDL_GetFinger(touch,fingerid);
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diff changeset
296
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diff changeset
297 if (!finger) {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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298 return;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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299 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
300
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
301
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
302 SDL_free(finger);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
303 touch->num_fingers--;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
304 touch->fingers[index] = touch->fingers[touch->num_fingers];
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diff changeset
305 }
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diff changeset
306
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
307
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
308 int
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diff changeset
309 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
310 {
4643
8806b78988f7 Bug fixes. Basic touch events (finger up, finger down, finger move) supported.
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diff changeset
311 int posted;
4641
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diff changeset
312 SDL_Touch* touch = SDL_GetTouch(id);
4643
8806b78988f7 Bug fixes. Basic touch events (finger up, finger down, finger move) supported.
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diff changeset
313
4641
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diff changeset
314 if(down) {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
315 SDL_Finger nf;
4643
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diff changeset
316 nf.id = fingerid;
4641
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diff changeset
317 nf.x = x;
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diff changeset
318 nf.y = y;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
319 nf.pressure = pressure;
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diff changeset
320 nf.xdelta = 0;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
321 nf.ydelta = 0;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
322 nf.last_x = x;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
323 nf.last_y = y;
4646
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diff changeset
324 nf.last_pressure = pressure;
4641
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diff changeset
325 SDL_AddFinger(touch,&nf);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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parents: 4640
diff changeset
326
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
327 posted = 0;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
328 if (SDL_GetEventState(SDL_FINGERDOWN) == SDL_ENABLE) {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
329 SDL_Event event;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
330 event.tfinger.type = SDL_FINGERDOWN;
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diff changeset
331 event.tfinger.touchId = (Uint8) id;
4642
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
332 event.tfinger.x = x;
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
333 event.tfinger.y = y;
4641
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diff changeset
334 event.tfinger.state = touch->buttonstate;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
335 event.tfinger.windowID = touch->focus ? touch->focus->id : 0;
4643
8806b78988f7 Bug fixes. Basic touch events (finger up, finger down, finger move) supported.
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diff changeset
336 event.tfinger.fingerId = fingerid;
4641
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diff changeset
337 posted = (SDL_PushEvent(&event) > 0);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
338 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
339 return posted;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
340 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
341 else {
4643
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diff changeset
342 SDL_DelFinger(touch,fingerid);
4641
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diff changeset
343 posted = 0;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
344 if (SDL_GetEventState(SDL_FINGERUP) == SDL_ENABLE) {
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
345 SDL_Event event;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
346 event.tfinger.type = SDL_FINGERUP;
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diff changeset
347 event.tfinger.touchId = (Uint8) id;
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diff changeset
348 event.tfinger.state = touch->buttonstate;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
349 event.tfinger.windowID = touch->focus ? touch->focus->id : 0;
4643
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parents: 4642
diff changeset
350 event.tfinger.fingerId = fingerid;
4641
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diff changeset
351 posted = (SDL_PushEvent(&event) > 0);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
352 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
353 return posted;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
354 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
355 }
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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diff changeset
356
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
357 int
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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parents: 4640
diff changeset
358 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
359 int x, int y, int 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
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 int index = SDL_GetTouchIndexId(id);
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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parents: 4640
diff changeset
362 SDL_Touch *touch = SDL_GetTouch(id);
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
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parents: 4640
diff changeset
363 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.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
364 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
365 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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parents:
diff changeset
366 int yrel;
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
367 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.
Jim Grandpre <jim.tla@gmail.com>
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 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
370 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
371 }
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
372
4642
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
373 if(finger == NULL)
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
374 SDL_SendFingerDown(id,fingerid,SDL_TRUE,x,y,pressure);
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
375 else {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
376 /* the relative motion is calculated regarding the last position */
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
377 if (relative) {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
378 xrel = x;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
379 yrel = y;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
380 x = (finger->last_x + x);
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
381 y = (finger->last_y + y);
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
382 } else {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
383 if(x < 0) x = finger->last_x; /*If movement is only in one axis,*/
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
384 if(y < 0) y = finger->last_y; /*The other is marked as -1*/
4646
eea1bf53effa Added include/touch.h Now reading in resolution of touch pad.
Jim Grandpre <jim.tla@gmail.com>
parents: 4645
diff changeset
385 if(pressure < 0) pressure = finger->last_pressure;
4642
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
386 xrel = x - finger->last_x;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
387 yrel = y - finger->last_y;
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>
parents: 4641
diff changeset
389
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
390 /* Drop events that don't change state */
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
391 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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diff changeset
392 #if 0
4642
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
393 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
394 #endif
4642
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
395 return 0;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
396 }
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
397
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
398 /* Update internal touch coordinates */
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
399
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
400 finger->x = x;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
401 finger->y = y;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
402
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
403 /*Should scale to window? Normalize? Maintain Aspect?*/
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
404 //SDL_GetWindowSize(touch->focus, &x_max, &y_max);
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 /* make sure that the pointers find themselves inside the windows */
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
407 /* only check if touch->xmax is set ! */
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
408 /*
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
409 if (x_max && touch->x > x_max) {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
410 touch->x = x_max;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
411 } else if (touch->x < 0) {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
412 touch->x = 0;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
413 }
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
414
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
415 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
416 touch->y = y_max;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
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diff changeset
417 } else if (touch->y < 0) {
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
418 touch->y = 0;
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
419 }
057e8762d2a1 Added reading of event* for touch events.
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diff changeset
420 */
4646
eea1bf53effa Added include/touch.h Now reading in resolution of touch pad.
Jim Grandpre <jim.tla@gmail.com>
parents: 4645
diff changeset
421 finger->xdelta = xrel;
eea1bf53effa Added include/touch.h Now reading in resolution of touch pad.
Jim Grandpre <jim.tla@gmail.com>
parents: 4645
diff changeset
422 finger->ydelta = yrel;
4642
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
423 finger->pressure = pressure;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
424
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
425
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
426
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
427 /* Post the event, if desired */
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
428 posted = 0;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
429 if (SDL_GetEventState(SDL_FINGERMOTION) == SDL_ENABLE) {
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
430 SDL_Event event;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
431 event.tfinger.type = SDL_FINGERMOTION;
4643
8806b78988f7 Bug fixes. Basic touch events (finger up, finger down, finger move) supported.
Jim Grandpre <jim.tla@gmail.com>
parents: 4642
diff changeset
432 event.tfinger.touchId = (Uint8) id;
8806b78988f7 Bug fixes. Basic touch events (finger up, finger down, finger move) supported.
Jim Grandpre <jim.tla@gmail.com>
parents: 4642
diff changeset
433 event.tfinger.fingerId = (Uint8) fingerid;
4642
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
434 event.tfinger.x = x;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
435 event.tfinger.y = y;
4644
fb500b3e1717 Added pressure support for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4643
diff changeset
436 event.tfinger.pressure = pressure;
4642
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
437 event.tfinger.state = touch->buttonstate;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
438 event.tfinger.windowID = touch->focus ? touch->focus->id : 0;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
439 posted = (SDL_PushEvent(&event) > 0);
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
440 }
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
441 finger->last_x = finger->x;
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
442 finger->last_y = finger->y;
4646
eea1bf53effa Added include/touch.h Now reading in resolution of touch pad.
Jim Grandpre <jim.tla@gmail.com>
parents: 4645
diff changeset
443 finger->last_pressure = finger->pressure;
4642
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
444 return posted;
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
445 }
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 int
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 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
449 {
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
450 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
451 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
452 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
453
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 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
455 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
456 }
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
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 /* 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.
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
459 switch (state) {
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 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
461 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
462 /* 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
463 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
464 }
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 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
466 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
467 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
468 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
469 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
470 /* 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
471 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
472 }
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 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
474 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
475 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
476 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
477 /* 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
478 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
479 }
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
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 /* 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
482 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
483 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
484 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
485 event.type = type;
4642
057e8762d2a1 Added reading of event* for touch events.
Jim Grandpre <jim.tla@gmail.com>
parents: 4641
diff changeset
486 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
487 event.tbutton.state = state;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
488 event.tbutton.button = button;
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
489 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
490 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
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 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
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
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
495 char *
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
496 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
497 {
4641
49a97daea6ec Added touch event definitions. Heavily modified events/SDL_touch*.
Jim Grandpre <jim.tla@gmail.com>
parents: 4640
diff changeset
498 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
499 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
500 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
501 }
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
502 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
503 }
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
504
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
505 /* vi: set ts=4 sw=4 expandtab: */