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annotate src/video/uikit/SDL_uikitview.m @ 5017:a9a3b9852a4a

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SDL_atomic.h is safe to include in the main header now.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 17 Jan 2011 14:08:00 -0800
parents c24ba2cc9583
children a69e36365766
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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
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23 #import "SDL_uikitview.h"
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24
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25 #include "../../events/SDL_keyboard_c.h"
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26 #include "../../events/SDL_mouse_c.h"
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27 #include "../../events/SDL_touch_c.h"
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28
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29 #if SDL_IPHONE_KEYBOARD
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30 #import "keyinfotable.h"
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31 #import "SDL_uikitappdelegate.h"
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32 #import "SDL_uikitwindow.h"
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33 #endif
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34
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35 @implementation SDL_uikitview
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36
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37 - (void)dealloc {
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38 #if SDL_IPHONE_KEYBOARD
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39 [textField release];
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40 #endif
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41 [super dealloc];
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42 }
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43
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44 - (id)initWithFrame:(CGRect)frame {
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45
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46 self = [super initWithFrame: frame];
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47
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48 #if SDL_IPHONE_KEYBOARD
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49 [self initializeKeyboard];
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50 #endif
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51
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52 #ifdef FIXED_MULTITOUCH
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53 SDL_Touch touch;
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54 touch.id = 0; //TODO: Should be -1?
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55
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56 //touch.driverdata = SDL_malloc(sizeof(EventTouchData));
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57 //EventTouchData* data = (EventTouchData*)(touch.driverdata);
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58
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59 touch.x_min = 0;
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60 touch.x_max = frame.size.width;
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61 touch.native_xres = touch.x_max - touch.x_min;
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62 touch.y_min = 0;
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63 touch.y_max = frame.size.height;
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64 touch.native_yres = touch.y_max - touch.y_min;
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65 touch.pressure_min = 0;
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66 touch.pressure_max = 1;
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67 touch.native_pressureres = touch.pressure_max - touch.pressure_min;
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68
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69
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70 touchId = SDL_AddTouch(&touch, "IPHONE SCREEN");
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71 #endif
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72
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73 return self;
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74
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75 }
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76
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77 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
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78
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79 NSEnumerator *enumerator = [touches objectEnumerator];
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80 UITouch *touch = (UITouch*)[enumerator nextObject];
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81
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82 //NSLog("Click");
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83
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84 if (touch) {
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85 CGPoint locationInView = [touch locationInView: self];
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86
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87 /* send moved event */
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88 SDL_SendMouseMotion(NULL, 0, locationInView.x, locationInView.y);
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89
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90 /* send mouse down event */
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91 SDL_SendMouseButton(NULL, SDL_PRESSED, SDL_BUTTON_LEFT);
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92 }
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93
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94 #ifdef FIXED_MULTITOUCH
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95 while(touch) {
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96 CGPoint locationInView = [touch locationInView: self];
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97
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98
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99 #ifdef IPHONE_TOUCH_EFFICIENT_DANGEROUS
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100 //FIXME: TODO: Using touch as the fingerId is potentially dangerous
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101 //It is also much more efficient than storing the UITouch pointer
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102 //and comparing it to the incoming event.
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103 SDL_SendFingerDown(touchId,(long)touch,
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104 SDL_TRUE,locationInView.x,locationInView.y,
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105 1);
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106 #else
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107 int i;
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108 for(i = 0;i < MAX_SIMULTANEOUS_TOUCHES;i++) {
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109 if(finger[i] == NULL) {
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110 finger[i] = touch;
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111 SDL_SendFingerDown(touchId,i,
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112 SDL_TRUE,locationInView.x,locationInView.y,
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113 1);
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114 break;
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115 }
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116 }
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117 #endif
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118
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119
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120
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121
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122 touch = (UITouch*)[enumerator nextObject];
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123 }
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124 #endif
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125 }
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126
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127 - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
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128
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129 NSEnumerator *enumerator = [touches objectEnumerator];
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130 UITouch *touch = (UITouch*)[enumerator nextObject];
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131
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132 if (touch) {
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133 /* send mouse up */
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134 SDL_SendMouseButton(NULL, SDL_RELEASED, SDL_BUTTON_LEFT);
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135 }
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136
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137 #ifdef FIXED_MULTITOUCH
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138 while(touch) {
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139 CGPoint locationInView = [touch locationInView: self];
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140
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141
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142 #ifdef IPHONE_TOUCH_EFFICIENT_DANGEROUS
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143 SDL_SendFingerDown(touchId,(long)touch,
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144 SDL_FALSE,locationInView.x,locationInView.y,
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145 1);
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146 #else
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147 int i;
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148 for(i = 0;i < MAX_SIMULTANEOUS_TOUCHES;i++) {
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149 if(finger[i] == touch) {
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150 SDL_SendFingerDown(touchId,i,
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151 SDL_FALSE,locationInView.x,locationInView.y,
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152 1);
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153 break;
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154 }
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155 }
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156 #endif
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157
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158 touch = (UITouch*)[enumerator nextObject];
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159 }
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160 #endif
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161 }
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162
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163 - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event {
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164 /*
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165 this can happen if the user puts more than 5 touches on the screen
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166 at once, or perhaps in other circumstances. Usually (it seems)
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167 all active touches are canceled.
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168 */
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169 [self touchesEnded: touches withEvent: event];
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170 }
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171
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172 - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
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173
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174 NSEnumerator *enumerator = [touches objectEnumerator];
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175 UITouch *touch = (UITouch*)[enumerator nextObject];
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176
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177 if (touch) {
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178 CGPoint locationInView = [touch locationInView: self];
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179
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180 /* send moved event */
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181 SDL_SendMouseMotion(NULL, 0, locationInView.x, locationInView.y);
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182 }
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183
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184 #ifdef FIXED_MULTITOUCH
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185 while(touch) {
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186 CGPoint locationInView = [touch locationInView: self];
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187
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188
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189 #ifdef IPHONE_TOUCH_EFFICIENT_DANGEROUS
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190 SDL_SendTouchMotion(touchId,(long)touch,
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191 SDL_FALSE,locationInView.x,locationInView.y,
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192 1);
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193 #else
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194 int i;
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195 for(i = 0;i < MAX_SIMULTANEOUS_TOUCHES;i++) {
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196 if(finger[i] == touch) {
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197 SDL_SendTouchMotion(touchId,i,
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198 SDL_FALSE,locationInView.x,locationInView.y,
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199 1);
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200 break;
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201 }
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202 }
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203 #endif
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204
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205 touch = (UITouch*)[enumerator nextObject];
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206 }
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207 #endif
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208 }
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209
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210 /*
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211 ---- Keyboard related functionality below this line ----
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212 */
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213 #if SDL_IPHONE_KEYBOARD
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214
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215 /* Is the iPhone virtual keyboard visible onscreen? */
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216 - (BOOL)keyboardVisible {
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217 return keyboardVisible;
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218 }
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219
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220 /* Set ourselves up as a UITextFieldDelegate */
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221 - (void)initializeKeyboard {
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222
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223 textField = [[[UITextField alloc] initWithFrame: CGRectZero] autorelease];
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224 textField.delegate = self;
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225 /* placeholder so there is something to delete! */
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226 textField.text = @" ";
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227
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228 /* set UITextInputTrait properties, mostly to defaults */
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229 textField.autocapitalizationType = UITextAutocapitalizationTypeNone;
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230 textField.autocorrectionType = UITextAutocorrectionTypeNo;
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231 textField.enablesReturnKeyAutomatically = NO;
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232 textField.keyboardAppearance = UIKeyboardAppearanceDefault;
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233 textField.keyboardType = UIKeyboardTypeDefault;
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234 textField.returnKeyType = UIReturnKeyDefault;
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235 textField.secureTextEntry = NO;
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236
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237 textField.hidden = YES;
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238 keyboardVisible = NO;
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239 /* add the UITextField (hidden) to our view */
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240 [self addSubview: textField];
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241 }
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242
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243 /* reveal onscreen virtual keyboard */
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244 - (void)showKeyboard {
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245 keyboardVisible = YES;
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246 [textField becomeFirstResponder];
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247 }
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248
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249 /* hide onscreen virtual keyboard */
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250 - (void)hideKeyboard {
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251 keyboardVisible = NO;
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252 [textField resignFirstResponder];
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253 }
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254
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255 /* UITextFieldDelegate method. Invoked when user types something. */
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256 - (BOOL)textField:(UITextField *)_textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
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257
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258 if ([string length] == 0) {
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259 /* it wants to replace text with nothing, ie a delete */
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260 SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_DELETE);
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261 SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_DELETE);
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262 }
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263 else {
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264 /* go through all the characters in the string we've been sent
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265 and convert them to key presses */
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266 int i;
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267 for (i=0; i<[string length]; i++) {
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268
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269 unichar c = [string characterAtIndex: i];
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270
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271 Uint16 mod = 0;
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272 SDL_scancode code;
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273
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diff changeset
274 if (c < 127) {
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275 /* figure out the SDL_scancode and SDL_keymod for this unichar */
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276 code = unicharToUIKeyInfoTable[c].code;
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277 mod = unicharToUIKeyInfoTable[c].mod;
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278 }
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diff changeset
279 else {
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diff changeset
280 /* we only deal with ASCII right now */
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281 code = SDL_SCANCODE_UNKNOWN;
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282 mod = 0;
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283 }
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diff changeset
284
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diff changeset
285 if (mod & KMOD_SHIFT) {
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diff changeset
286 /* If character uses shift, press shift down */
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diff changeset
287 SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_LSHIFT);
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288 }
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diff changeset
289 /* send a keydown and keyup even for the character */
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diff changeset
290 SDL_SendKeyboardKey(SDL_PRESSED, code);
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diff changeset
291 SDL_SendKeyboardKey(SDL_RELEASED, code);
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diff changeset
292 if (mod & KMOD_SHIFT) {
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diff changeset
293 /* If character uses shift, press shift back up */
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294 SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_LSHIFT);
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295 }
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diff changeset
296 }
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parents:
diff changeset
297 }
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diff changeset
298 return NO; /* don't allow the edit! (keep placeholder text there) */
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diff changeset
299 }
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diff changeset
300
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diff changeset
301 /* Terminates the editing session */
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diff changeset
302 - (BOOL)textFieldShouldReturn:(UITextField*)_textField {
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diff changeset
303 [self hideKeyboard];
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diff changeset
304 return YES;
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diff changeset
305 }
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diff changeset
306
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diff changeset
307 #endif
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diff changeset
308
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diff changeset
309 @end
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diff changeset
310
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diff changeset
311 /* iPhone keyboard addition functions */
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diff changeset
312 #if SDL_IPHONE_KEYBOARD
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313
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314 int SDL_iPhoneKeyboardShow(SDL_Window * window) {
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315
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diff changeset
316 SDL_WindowData *data;
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diff changeset
317 SDL_uikitview *view;
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diff changeset
318
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diff changeset
319 if (NULL == window) {
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diff changeset
320 SDL_SetError("Window does not exist");
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diff changeset
321 return -1;
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diff changeset
322 }
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parents:
diff changeset
323
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diff changeset
324 data = (SDL_WindowData *)window->driverdata;
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diff changeset
325 view = data->view;
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parents:
diff changeset
326
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diff changeset
327 if (nil == view) {
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diff changeset
328 SDL_SetError("Window has no view");
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parents:
diff changeset
329 return -1;
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parents:
diff changeset
330 }
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parents:
diff changeset
331 else {
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parents:
diff changeset
332 [view showKeyboard];
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diff changeset
333 return 0;
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parents:
diff changeset
334 }
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diff changeset
335 }
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diff changeset
336
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diff changeset
337 int SDL_iPhoneKeyboardHide(SDL_Window * window) {
2765
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diff changeset
338
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diff changeset
339 SDL_WindowData *data;
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diff changeset
340 SDL_uikitview *view;
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diff changeset
341
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diff changeset
342 if (NULL == window) {
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diff changeset
343 SDL_SetError("Window does not exist");
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diff changeset
344 return -1;
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diff changeset
345 }
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diff changeset
346
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diff changeset
347 data = (SDL_WindowData *)window->driverdata;
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diff changeset
348 view = data->view;
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diff changeset
349
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diff changeset
350 if (NULL == view) {
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diff changeset
351 SDL_SetError("Window has no view");
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diff changeset
352 return -1;
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diff changeset
353 }
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diff changeset
354 else {
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diff changeset
355 [view hideKeyboard];
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parents:
diff changeset
356 return 0;
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diff changeset
357 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
358 }
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diff changeset
359
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64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
360 SDL_bool SDL_iPhoneKeyboardIsShown(SDL_Window * window) {
2765
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diff changeset
361
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parents:
diff changeset
362 SDL_WindowData *data;
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diff changeset
363 SDL_uikitview *view;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
364
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parents:
diff changeset
365 if (NULL == window) {
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parents:
diff changeset
366 SDL_SetError("Window does not exist");
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
367 return -1;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
368 }
f55c87ae336b Final merge of Google Summer of Code 2008 work...
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parents:
diff changeset
369
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diff changeset
370 data = (SDL_WindowData *)window->driverdata;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
371 view = data->view;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
372
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
373 if (NULL == view) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
374 SDL_SetError("Window has no view");
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
375 return 0;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
376 }
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
377 else {
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
378 return view.keyboardVisible;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
379 }
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
380 }
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
381
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 2940
diff changeset
382 int SDL_iPhoneKeyboardToggle(SDL_Window * window) {
2765
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parents:
diff changeset
383
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
384 SDL_WindowData *data;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
385 SDL_uikitview *view;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
386
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
387 if (NULL == window) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
388 SDL_SetError("Window does not exist");
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
389 return -1;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
390 }
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
391
f55c87ae336b Final merge of Google Summer of Code 2008 work...
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parents:
diff changeset
392 data = (SDL_WindowData *)window->driverdata;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
393 view = data->view;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
394
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
395 if (NULL == view) {
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
396 SDL_SetError("Window has no view");
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
397 return -1;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
398 }
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
399 else {
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 2940
diff changeset
400 if (SDL_iPhoneKeyboardIsShown(window)) {
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 2940
diff changeset
401 SDL_iPhoneKeyboardHide(window);
2765
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
402 }
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
403 else {
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 2940
diff changeset
404 SDL_iPhoneKeyboardShow(window);
2765
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
405 }
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
406 return 0;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
407 }
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
408 }
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
409
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
410 #else
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
411
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
412 /* stubs, used if compiled without keyboard support */
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
413
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 2940
diff changeset
414 int SDL_iPhoneKeyboardShow(SDL_Window * window) {
2765
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
415 SDL_SetError("Not compiled with keyboard support");
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
416 return -1;
f55c87ae336b Final merge of Google Summer of Code 2008 work...
Sam Lantinga <slouken@libsdl.org>
parents:
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417 }
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418
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419 int SDL_iPhoneKeyboardHide(SDL_Window * window) {
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420 SDL_SetError("Not compiled with keyboard support");
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421 return -1;
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422 }
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423
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424 SDL_bool SDL_iPhoneKeyboardIsShown(SDL_Window * window) {
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425 return 0;
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426 }
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427
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428 int SDL_iPhoneKeyboardToggle(SDL_Window * window) {
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429 SDL_SetError("Not compiled with keyboard support");
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430 return -1;
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431 }
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432
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433
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434 #endif /* SDL_IPHONE_KEYBOARD */