Mercurial > sdl-ios-xcode

annotate src/video/quartz/SDL_QuartzWM.m @ 78:e9582f471c02

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Added the environment variable SDL_MOUSE_NORELATIVE to completely disable relative mouse motion if the application desires it. UNDOCUMENTED!!
author Sam Lantinga <slouken@lokigames.com>
date Sat, 23 Jun 2001 18:51:29 +0000
parents bd6b0a910a65
children 4382c38dfbee
rev   line source
47
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@devolution.com
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21 */
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22
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23 struct WMcursor {
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24 Cursor curs;
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25 };
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26
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27 static void QZ_FreeWMCursor (_THIS, WMcursor *cursor) {
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28
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29 if ( cursor != NULL )
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30 free (cursor);
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31 }
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32
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33 /* Use the Carbon cursor routines for now */
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34 static WMcursor* QZ_CreateWMCursor (_THIS, Uint8 *data, Uint8 *mask,
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35 int w, int h, int hot_x, int hot_y) {
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36 WMcursor *cursor;
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37 int row, bytes;
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38 cursor = (WMcursor *)malloc(sizeof(WMcursor));
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39 if ( cursor == NULL ) {
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40 SDL_OutOfMemory();
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41 return(NULL);
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42 }
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43 memset(cursor, 0, sizeof(*cursor));
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44
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45 bytes = (w/8);
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46 if ( bytes > 2 ) {
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47 bytes = 2;
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48 }
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49 for ( row=0; row<h && (row < 16); ++row ) {
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50 memcpy(&cursor->curs.data[row], data, bytes);
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51 data += w/8;
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52 }
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53 for ( row=0; row<h && (row < 16); ++row ) {
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54 memcpy(&cursor->curs.mask[row], mask, bytes);
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55 mask += w/8;
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56 }
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57 cursor->curs.hotSpot.h = hot_x;
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58 cursor->curs.hotSpot.v = hot_y;
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59
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60 return(cursor);
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61 }
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62
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63 static int QZ_ShowWMCursor (_THIS, WMcursor *cursor) {
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64
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65 static int visible = 1;
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66
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67 if ( cursor == NULL) {
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68 if ( visible ) {
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69 HideCursor ();
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70 visible = 0;
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71 }
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72 }
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73 else {
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74 SetCursor(&cursor->curs);
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75 if ( ! visible ) {
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76 ShowCursor ();
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77 visible = 1;
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78 }
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79 }
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80
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81 return 1;
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82 }
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83
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84 static void QZ_PrivateWarpCursor (_THIS, int fullscreen, int h, int x, int y) {
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85
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86 CGPoint p;
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87
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88 /* We require absolute screen coordiates for our warp */
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89 p.x = x;
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90 p.y = h - y;
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91
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92 if ( fullscreen )
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93 /* Already absolute coordinates */
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94 CGDisplayMoveCursorToPoint(display_id, p);
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95 else {
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96 /* Convert to absolute screen coordinates */
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97 NSPoint base, screen;
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98 base = NSMakePoint (p.x, p.y);
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99 screen = [ window convertBaseToScreen:base ];
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100 p.x = screen.x;
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101 p.y = device_height - screen.y;
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102 CGDisplayMoveCursorToPoint (display_id, p);
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103 }
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104 }
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105
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106 static void QZ_WarpWMCursor (_THIS, Uint16 x, Uint16 y) {
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107
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108 /* Only allow warping when in foreground */
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109 if ( ! inForeground )
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110 return;
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111
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112 /* Do the actual warp */
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113 QZ_PrivateWarpCursor (this, SDL_VideoSurface->flags & SDL_FULLSCREEN,
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114 SDL_VideoSurface->h, x, y);
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115
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116 /* Generate mouse moved event */
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117 SDL_PrivateMouseMotion (SDL_RELEASED, 0, x, y);
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118 }
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119
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120 static void QZ_MoveWMCursor (_THIS, int x, int y) { }
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121 static void QZ_CheckMouseMode (_THIS) { }
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122
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123 static void QZ_SetCaption (_THIS, const char *title, const char *icon) {
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124
58
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125 if ( window != nil ) {
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126 NSString *string;
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127 if ( title != NULL ) {
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128 string = [ [ NSString alloc ] initWithCString:title ];
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129 [ window setTitle:string ];
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130 [ string release ];
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131 }
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132 if ( icon != NULL ) {
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133 string = [ [ NSString alloc ] initWithCString:icon ];
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134 [ window setMiniwindowTitle:string ];
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135 [ string release ];
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136 }
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137 }
47
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138 }
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139
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140 static void QZ_SetIcon (_THIS, SDL_Surface *icon, Uint8 *mask) {
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141 /* Convert icon/mask to NSImage, assign with NSWindow's setMiniwindowImage method */
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142 }
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143
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144 static int QZ_IconifyWindow (_THIS) {
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145
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146 /* Bug! minimize erases the framebuffer */
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147 if ( ! [ window isMiniaturized ] ) {
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148 [ window miniaturize:nil ];
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149 return 1;
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150 }
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151 else {
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152 SDL_SetError ("window already iconified");
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153 return 0;
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154 }
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155 }
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156
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157 /*
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158 static int QZ_GetWMInfo (_THIS, SDL_SysWMinfo *info) {
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159 info->nsWindowPtr = window;
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160 return 0;
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161 }*/
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162
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163 static SDL_GrabMode QZ_GrabInput (_THIS, SDL_GrabMode grab_mode) {
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164
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165 switch (grab_mode) {
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166 case SDL_GRAB_QUERY:
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167 break;
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168 case SDL_GRAB_OFF:
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169 CGAssociateMouseAndMouseCursorPosition (1);
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170 currentGrabMode = SDL_GRAB_OFF;
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171 break;
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172 case SDL_GRAB_ON:
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173 QZ_WarpWMCursor (this, SDL_VideoSurface->w / 2, SDL_VideoSurface->h / 2);
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174 CGAssociateMouseAndMouseCursorPosition (0);
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175 currentGrabMode = SDL_GRAB_ON;
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176 break;
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177 case SDL_GRAB_FULLSCREEN:
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178 break;
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179 }
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180
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181 return currentGrabMode;
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182 }