Mercurial > sdl-ios-xcode
annotate src/video/uikit/SDL_uikitview.m @ 3473:7bdc10624cba
This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 21 Nov 2009 07:14:21 +0000 |
parents | b93965a16fe0 |
children | 64ce267332c6 |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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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 #if SDL_IPHONE_KEYBOARD |
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26 #import "SDL_keyboard_c.h" |
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27 #import "keyinfotable.h" |
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28 #import "SDL_uikitappdelegate.h" |
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29 #import "SDL_uikitwindow.h" |
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30 #endif |
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31 |
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32 @implementation SDL_uikitview |
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33 |
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34 - (void)dealloc { |
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35 #if SDL_IPHONE_KEYBOARD |
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36 SDL_DelKeyboard(0); |
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37 [textField release]; |
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38 #endif |
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39 [super dealloc]; |
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40 } |
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41 |
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42 - (id)initWithFrame:(CGRect)frame { |
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43 |
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44 self = [super initWithFrame: frame]; |
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45 |
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46 #if SDL_IPHONE_KEYBOARD |
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47 [self initializeKeyboard]; |
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48 #endif |
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49 |
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50 int i; |
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51 for (i=0; i<MAX_SIMULTANEOUS_TOUCHES; i++) { |
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52 mice[i].id = i; |
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53 mice[i].driverdata = NULL; |
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54 SDL_AddMouse(&mice[i], "Mouse", 0, 0, 1); |
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55 } |
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56 self.multipleTouchEnabled = YES; |
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57 |
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58 return self; |
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59 |
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60 } |
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61 |
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62 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { |
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63 |
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64 NSEnumerator *enumerator = [touches objectEnumerator]; |
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65 UITouch *touch =(UITouch*)[enumerator nextObject]; |
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66 |
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67 /* associate touches with mice, so long as we have slots */ |
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68 int i; |
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69 int found = 0; |
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70 for(i=0; touch && i < MAX_SIMULTANEOUS_TOUCHES; i++) { |
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71 |
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72 /* check if this mouse is already tracking a touch */ |
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73 if (mice[i].driverdata != NULL) { |
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74 continue; |
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75 } |
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76 /* |
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77 mouse not associated with anything right now, |
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78 associate the touch with this mouse |
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79 */ |
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80 found = 1; |
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81 |
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82 /* save old mouse so we can switch back */ |
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83 int oldMouse = SDL_SelectMouse(-1); |
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84 |
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85 /* select this slot's mouse */ |
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86 SDL_SelectMouse(i); |
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87 CGPoint locationInView = [touch locationInView: self]; |
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88 |
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89 /* set driver data to touch object, we'll use touch object later */ |
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90 mice[i].driverdata = [touch retain]; |
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91 |
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92 /* send moved event */ |
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93 SDL_SendMouseMotion(i, 0, locationInView.x, locationInView.y, 0); |
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94 |
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95 /* send mouse down event */ |
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96 SDL_SendMouseButton(i, SDL_PRESSED, SDL_BUTTON_LEFT); |
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97 |
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98 /* re-calibrate relative mouse motion */ |
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99 SDL_GetRelativeMouseState(i, NULL, NULL); |
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100 |
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101 /* grab next touch */ |
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102 touch = (UITouch*)[enumerator nextObject]; |
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103 |
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104 /* switch back to our old mouse */ |
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105 SDL_SelectMouse(oldMouse); |
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106 |
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107 } |
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108 } |
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109 |
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110 - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { |
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111 |
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112 NSEnumerator *enumerator = [touches objectEnumerator]; |
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113 UITouch *touch=nil; |
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114 |
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115 while(touch = (UITouch *)[enumerator nextObject]) { |
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116 /* search for the mouse slot associated with this touch */ |
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117 int i, found = NO; |
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118 for (i=0; i<MAX_SIMULTANEOUS_TOUCHES && !found; i++) { |
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119 if (mice[i].driverdata == touch) { |
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120 /* found the mouse associate with the touch */ |
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121 [(UITouch*)(mice[i].driverdata) release]; |
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122 mice[i].driverdata = NULL; |
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123 /* send mouse up */ |
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124 SDL_SendMouseButton(i, SDL_RELEASED, SDL_BUTTON_LEFT); |
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125 /* discontinue search for this touch */ |
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126 found = YES; |
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127 } |
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128 } |
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129 } |
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130 } |
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131 |
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132 - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event { |
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133 /* |
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134 this can happen if the user puts more than 5 touches on the screen |
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135 at once, or perhaps in other circumstances. Usually (it seems) |
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136 all active touches are canceled. |
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137 */ |
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138 [self touchesEnded: touches withEvent: event]; |
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139 } |
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140 |
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141 - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { |
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142 |
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143 NSEnumerator *enumerator = [touches objectEnumerator]; |
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144 UITouch *touch=nil; |
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145 |
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146 while(touch = (UITouch *)[enumerator nextObject]) { |
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147 /* try to find the mouse associated with this touch */ |
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148 int i, found = NO; |
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149 for (i=0; i<MAX_SIMULTANEOUS_TOUCHES && !found; i++) { |
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150 if (mice[i].driverdata == touch) { |
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151 /* found proper mouse */ |
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152 CGPoint locationInView = [touch locationInView: self]; |
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153 /* send moved event */ |
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154 SDL_SendMouseMotion(i, 0, locationInView.x, locationInView.y, 0); |
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155 /* discontinue search */ |
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156 found = YES; |
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157 } |
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158 } |
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159 } |
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160 } |
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161 |
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162 /* |
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163 ---- Keyboard related functionality below this line ---- |
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164 */ |
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165 #if SDL_IPHONE_KEYBOARD |
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166 |
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167 /* Is the iPhone virtual keyboard visible onscreen? */ |
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168 - (BOOL)keyboardVisible { |
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169 return keyboardVisible; |
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170 } |
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171 |
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172 /* Set ourselves up as a UITextFieldDelegate */ |
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173 - (void)initializeKeyboard { |
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174 |
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175 textField = [[[UITextField alloc] initWithFrame: CGRectZero] autorelease]; |
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176 textField.delegate = self; |
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177 /* placeholder so there is something to delete! */ |
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178 textField.text = @" "; |
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179 |
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180 /* set UITextInputTrait properties, mostly to defaults */ |
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181 textField.autocapitalizationType = UITextAutocapitalizationTypeNone; |
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182 textField.autocorrectionType = UITextAutocorrectionTypeNo; |
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183 textField.enablesReturnKeyAutomatically = NO; |
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184 textField.keyboardAppearance = UIKeyboardAppearanceDefault; |
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185 textField.keyboardType = UIKeyboardTypeDefault; |
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186 textField.returnKeyType = UIReturnKeyDefault; |
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187 textField.secureTextEntry = NO; |
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188 |
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189 textField.hidden = YES; |
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190 keyboardVisible = NO; |
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191 /* add the UITextField (hidden) to our view */ |
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192 [self addSubview: textField]; |
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193 |
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194 /* create our SDL_Keyboard */ |
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195 SDL_Keyboard keyboard; |
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196 SDL_zero(keyboard); |
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197 SDL_AddKeyboard(&keyboard, 0); |
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198 SDLKey keymap[SDL_NUM_SCANCODES]; |
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199 SDL_GetDefaultKeymap(keymap); |
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200 SDL_SetKeymap(0, 0, keymap, SDL_NUM_SCANCODES); |
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201 |
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202 } |
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203 |
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204 /* reveal onscreen virtual keyboard */ |
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205 - (void)showKeyboard { |
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206 keyboardVisible = YES; |
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207 [textField becomeFirstResponder]; |
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208 } |
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209 |
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210 /* hide onscreen virtual keyboard */ |
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211 - (void)hideKeyboard { |
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212 keyboardVisible = NO; |
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213 [textField resignFirstResponder]; |
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214 } |
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215 |
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216 /* UITextFieldDelegate method. Invoked when user types something. */ |
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217 - (BOOL)textField:(UITextField *)_textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string { |
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218 |
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219 if ([string length] == 0) { |
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220 /* it wants to replace text with nothing, ie a delete */ |
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221 SDL_SendKeyboardKey( 0, SDL_PRESSED, SDL_SCANCODE_DELETE); |
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222 SDL_SendKeyboardKey( 0, SDL_RELEASED, SDL_SCANCODE_DELETE); |
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223 } |
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224 else { |
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225 /* go through all the characters in the string we've been sent |
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226 and convert them to key presses */ |
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227 int i; |
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228 for (i=0; i<[string length]; i++) { |
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229 |
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230 unichar c = [string characterAtIndex: i]; |
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231 |
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232 Uint16 mod = 0; |
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233 SDL_scancode code; |
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234 |
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235 if (c < 127) { |
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236 /* figure out the SDL_scancode and SDL_keymod for this unichar */ |
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237 code = unicharToUIKeyInfoTable[c].code; |
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238 mod = unicharToUIKeyInfoTable[c].mod; |
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239 } |
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240 else { |
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241 /* we only deal with ASCII right now */ |
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242 code = SDL_SCANCODE_UNKNOWN; |
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243 mod = 0; |
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244 } |
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245 |
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246 if (mod & KMOD_SHIFT) { |
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247 /* If character uses shift, press shift down */ |
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248 SDL_SendKeyboardKey( 0, SDL_PRESSED, SDL_SCANCODE_LSHIFT); |
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249 } |
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250 /* send a keydown and keyup even for the character */ |
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251 SDL_SendKeyboardKey( 0, SDL_PRESSED, code); |
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252 SDL_SendKeyboardKey( 0, SDL_RELEASED, code); |
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253 if (mod & KMOD_SHIFT) { |
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254 /* If character uses shift, press shift back up */ |
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255 SDL_SendKeyboardKey( 0, SDL_RELEASED, SDL_SCANCODE_LSHIFT); |
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256 } |
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257 } |
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258 } |
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259 return NO; /* don't allow the edit! (keep placeholder text there) */ |
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260 } |
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261 |
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262 /* Terminates the editing session */ |
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263 - (BOOL)textFieldShouldReturn:(UITextField*)_textField { |
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264 [self hideKeyboard]; |
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265 return YES; |
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266 } |
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267 |
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268 #endif |
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269 |
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270 @end |
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271 |
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272 /* iPhone keyboard addition functions */ |
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273 #if SDL_IPHONE_KEYBOARD |
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274 |
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275 int SDL_iPhoneKeyboardShow(SDL_WindowID windowID) { |
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276 |
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277 SDL_Window *window = SDL_GetWindowFromID(windowID); |
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278 SDL_WindowData *data; |
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279 SDL_uikitview *view; |
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280 |
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281 if (NULL == window) { |
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282 SDL_SetError("Window does not exist"); |
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283 return -1; |
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284 } |
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285 |
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286 data = (SDL_WindowData *)window->driverdata; |
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287 view = data->view; |
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288 |
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289 if (nil == view) { |
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290 SDL_SetError("Window has no view"); |
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291 return -1; |
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292 } |
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293 else { |
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294 [view showKeyboard]; |
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295 return 0; |
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296 } |
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297 } |
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298 |
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299 int SDL_iPhoneKeyboardHide(SDL_WindowID windowID) { |
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300 |
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301 SDL_Window *window = SDL_GetWindowFromID(windowID); |
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302 SDL_WindowData *data; |
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303 SDL_uikitview *view; |
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304 |
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305 if (NULL == window) { |
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306 SDL_SetError("Window does not exist"); |
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307 return -1; |
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308 } |
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309 |
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310 data = (SDL_WindowData *)window->driverdata; |
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311 view = data->view; |
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312 |
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313 if (NULL == view) { |
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314 SDL_SetError("Window has no view"); |
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315 return -1; |
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316 } |
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317 else { |
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318 [view hideKeyboard]; |
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319 return 0; |
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320 } |
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321 } |
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322 |
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323 SDL_bool SDL_iPhoneKeyboardIsShown(SDL_WindowID windowID) { |
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324 |
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325 SDL_Window *window = SDL_GetWindowFromID(windowID); |
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326 SDL_WindowData *data; |
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327 SDL_uikitview *view; |
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328 |
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329 if (NULL == window) { |
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330 SDL_SetError("Window does not exist"); |
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331 return -1; |
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332 } |
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333 |
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334 data = (SDL_WindowData *)window->driverdata; |
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335 view = data->view; |
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336 |
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337 if (NULL == view) { |
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338 SDL_SetError("Window has no view"); |
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339 return 0; |
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340 } |
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341 else { |
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342 return view.keyboardVisible; |
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343 } |
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344 } |
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345 |
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346 int SDL_iPhoneKeyboardToggle(SDL_WindowID windowID) { |
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347 |
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348 SDL_Window *window = SDL_GetWindowFromID(windowID); |
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349 SDL_WindowData *data; |
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350 SDL_uikitview *view; |
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351 |
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352 if (NULL == window) { |
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353 SDL_SetError("Window does not exist"); |
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354 return -1; |
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355 } |
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356 |
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357 data = (SDL_WindowData *)window->driverdata; |
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358 view = data->view; |
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359 |
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360 if (NULL == view) { |
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361 SDL_SetError("Window has no view"); |
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362 return -1; |
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363 } |
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364 else { |
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365 if (SDL_iPhoneKeyboardIsShown(windowID)) { |
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366 SDL_iPhoneKeyboardHide(windowID); |
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367 } |
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368 else { |
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369 SDL_iPhoneKeyboardShow(windowID); |
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370 } |
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371 return 0; |
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372 } |
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373 } |
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374 |
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375 #else |
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376 |
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377 /* stubs, used if compiled without keyboard support */ |
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378 |
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379 int SDL_iPhoneKeyboardShow(SDL_WindowID windowID) { |
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380 SDL_SetError("Not compiled with keyboard support"); |
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381 return -1; |
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382 } |
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383 |
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384 int SDL_iPhoneKeyboardHide(SDL_WindowID windowID) { |
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385 SDL_SetError("Not compiled with keyboard support"); |
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386 return -1; |
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387 } |
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388 |
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389 SDL_bool SDL_iPhoneKeyboardIsShown(SDL_WindowID windowID) { |
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390 return 0; |
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391 } |
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392 |
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393 int SDL_iPhoneKeyboardToggle(SDL_WindowID windowID) { |
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394 SDL_SetError("Not compiled with keyboard support"); |
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395 return -1; |
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396 } |
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397 |
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398 |
2859 | 399 #endif /* SDL_IPHONE_KEYBOARD */ |