Mercurial > sdl-ios-xcode

annotate src/events/SDL_mouse.c @ 1722:5daa04d862f1 SDL-1.3

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Added a userdata parameter for event filters. Added a function to filter the existing queued events. Added explicit support for relative mouse mode to the API.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 30 Jun 2006 08:18:44 +0000
parents a1ebb17f9c52
children 6c63fc2bd986
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 mouse 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 "default_cursor.h"
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29
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30
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31 static int SDL_num_mice;
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32 static int SDL_current_mouse;
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33 static SDL_Mouse **SDL_mice;
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34
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35
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36 /* Public functions */
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37 int
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38 SDL_MouseInit(void)
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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_Mouse *
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44 SDL_GetMouse(int index)
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45 {
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46 if (index < 0 || index >= SDL_num_mice) {
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47 return NULL;
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48 }
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49 return SDL_mice[index];
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50 }
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51
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52 int
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53 SDL_AddMouse(const SDL_Mouse * mouse, int index)
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54 {
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55 SDL_Mouse **mice;
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56 int selected_mouse;
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57
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58 /* Add the mouse to the list of mice */
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59 if (index < 0 || index >= SDL_num_mice || SDL_mice[index]) {
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60 mice =
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61 (SDL_Mouse **) SDL_realloc(SDL_mice,
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62 (SDL_num_mice + 1) * sizeof(*mice));
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63 if (!mice) {
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64 SDL_OutOfMemory();
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65 return -1;
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66 }
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67
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68 SDL_mice = mice;
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69 index = SDL_num_mice++;
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70 }
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71 SDL_mice[index] = (SDL_Mouse *) SDL_malloc(sizeof(*SDL_mice[index]));
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72 if (!SDL_mice[index]) {
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73 SDL_OutOfMemory();
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74 return -1;
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75 }
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76 *SDL_mice[index] = *mouse;
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77
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78 /* Create the default cursor for the mouse */
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79 SDL_mice[index]->cursor_shown = SDL_TRUE;
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80 selected_mouse = SDL_SelectMouse(index);
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81 SDL_mice[index]->cur_cursor = NULL;
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82 SDL_mice[index]->def_cursor =
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83 SDL_CreateCursor(default_cdata, default_cmask, DEFAULT_CWIDTH,
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84 DEFAULT_CHEIGHT, DEFAULT_CHOTX, DEFAULT_CHOTY);
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85 SDL_SetCursor(SDL_mice[index]->def_cursor);
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86 SDL_SelectMouse(selected_mouse);
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87
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88 return index;
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89 }
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90
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91 void
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92 SDL_DelMouse(int index)
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93 {
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94 SDL_Mouse *mouse = SDL_GetMouse(index);
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95
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96 if (!mouse) {
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97 return;
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98 }
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99
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100 mouse->def_cursor = NULL;
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101 while (mouse->cursors) {
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102 SDL_FreeCursor(mouse->cursors);
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103 }
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104
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105 if (mouse->FreeMouse) {
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106 mouse->FreeMouse(mouse);
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107 }
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108 SDL_free(mouse);
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109
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110 SDL_mice[index] = NULL;
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111 }
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112
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113 void
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114 SDL_ResetMouse(int index)
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115 {
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116 SDL_Mouse *mouse = SDL_GetMouse(index);
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117
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118 if (!mouse) {
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119 return;
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120 }
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121
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122 /* FIXME */
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123 }
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124
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125 void
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126 SDL_MouseQuit(void)
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127 {
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128 int i;
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129
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130 for (i = 0; i < SDL_num_mice; ++i) {
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131 SDL_DelMouse(i);
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132 }
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133 SDL_num_mice = 0;
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134 SDL_current_mouse = 0;
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135
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136 if (SDL_mice) {
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137 SDL_free(SDL_mice);
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138 SDL_mice = NULL;
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139 }
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140 }
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141
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142 int
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143 SDL_GetNumMice(void)
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144 {
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145 return SDL_num_mice;
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146 }
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147
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148 int
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149 SDL_SelectMouse(int index)
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150 {
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151 if (index >= 0 && index < SDL_num_mice) {
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152 SDL_current_mouse = index;
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153 }
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154 return SDL_current_mouse;
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155 }
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156
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157 SDL_WindowID
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158 SDL_GetMouseFocusWindow()
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159 {
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160 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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161
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162 if (!mouse) {
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163 return 0;
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164 }
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165 return mouse->focus;
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166 }
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167
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168 static int
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169 FlushMouseMotion(void *param, SDL_Event * event)
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170 {
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171 if (event->type == SDL_MOUSEMOTION
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172 && event->motion.which == (Uint8) SDL_current_mouse) {
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173 return 0;
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174 } else {
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175 return 1;
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176 }
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177 }
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178
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179 int
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180 SDL_SetRelativeMouseMode(SDL_bool enabled)
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181 {
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182 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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183
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184 if (!mouse) {
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185 return -1;
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186 }
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187
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188 /* Flush pending mouse motion */
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189 mouse->flush_motion = SDL_TRUE;
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190 SDL_PumpEvents();
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191 mouse->flush_motion = SDL_FALSE;
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192 SDL_FilterEvents(FlushMouseMotion, mouse);
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193
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194 /* Set the relative mode */
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195 mouse->relative_mode = enabled;
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196
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197 /* Update cursor visibility */
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198 SDL_SetCursor(NULL);
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199
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200 if (!enabled) {
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201 /* Restore the expected mouse position */
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202 SDL_WarpMouseInWindow(mouse->focus, mouse->x, mouse->y);
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203 }
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204 return 0;
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205 }
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206
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207 SDL_bool
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208 SDL_GetRelativeMouseMode()
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209 {
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210 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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211
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212 if (!mouse) {
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213 return SDL_FALSE;
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214 }
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215 return mouse->relative_mode;
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216 }
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217
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218 Uint8
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219 SDL_GetMouseState(int *x, int *y)
0
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220 {
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221 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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222
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223 if (!mouse) {
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224 if (x) {
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225 *x = 0;
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226 }
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227 if (y) {
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228 *y = 0;
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229 }
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230 return 0;
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231 }
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232
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233 if (x) {
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234 *x = mouse->x;
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235 }
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236 if (y) {
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237 *y = mouse->y;
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238 }
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239 return mouse->buttonstate;
0
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240 }
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241
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242 Uint8
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243 SDL_GetRelativeMouseState(int *x, int *y)
0
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diff changeset
244 {
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245 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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246
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247 if (!mouse) {
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diff changeset
248 if (x) {
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diff changeset
249 *x = 0;
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250 }
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diff changeset
251 if (y) {
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diff changeset
252 *y = 0;
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diff changeset
253 }
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diff changeset
254 return 0;
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255 }
0
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256
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diff changeset
257 if (x) {
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diff changeset
258 *x = mouse->xdelta;
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259 }
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diff changeset
260 if (y) {
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diff changeset
261 *y = mouse->ydelta;
eef792d31de8 Work in progress. :)
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diff changeset
262 }
eef792d31de8 Work in progress. :)
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diff changeset
263 mouse->xdelta = 0;
eef792d31de8 Work in progress. :)
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diff changeset
264 mouse->ydelta = 0;
eef792d31de8 Work in progress. :)
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diff changeset
265 return mouse->buttonstate;
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diff changeset
266 }
0
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267
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diff changeset
268 int
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diff changeset
269 SDL_SendMouseMotion(int index, SDL_WindowID windowID, int relative, int x,
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diff changeset
270 int y)
eef792d31de8 Work in progress. :)
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diff changeset
271 {
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diff changeset
272 SDL_Mouse *mouse = SDL_GetMouse(index);
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diff changeset
273 int posted;
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diff changeset
274 int xrel;
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diff changeset
275 int yrel;
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diff changeset
276
1722
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277 if (!mouse || mouse->flush_motion) {
1670
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diff changeset
278 return 0;
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279 }
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diff changeset
280
1670
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diff changeset
281 if (windowID) {
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diff changeset
282 mouse->focus = windowID;
eef792d31de8 Work in progress. :)
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diff changeset
283 }
0
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284
1670
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diff changeset
285 if (relative) {
eef792d31de8 Work in progress. :)
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diff changeset
286 /* Push the cursor around */
eef792d31de8 Work in progress. :)
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diff changeset
287 xrel = x;
eef792d31de8 Work in progress. :)
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diff changeset
288 yrel = y;
eef792d31de8 Work in progress. :)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
289 x = (mouse->x + xrel);
eef792d31de8 Work in progress. :)
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diff changeset
290 y = (mouse->y + yrel);
eef792d31de8 Work in progress. :)
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diff changeset
291 } else {
eef792d31de8 Work in progress. :)
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diff changeset
292 xrel = x - mouse->x;
eef792d31de8 Work in progress. :)
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diff changeset
293 yrel = y - mouse->y;
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294 }
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295
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diff changeset
296 /* Drop events that don't change state */
1670
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diff changeset
297 if (!xrel && !yrel) {
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diff changeset
298 #if 0
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299 printf("Mouse event didn't change state - dropped!\n");
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diff changeset
300 #endif
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diff changeset
301 return 0;
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302 }
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f214b6fae45a Date: Fri, 14 Jan 2005 21:52:46 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 1123
diff changeset
303
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304 /* Update internal mouse state */
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305 if (!mouse->relative_mode) {
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306 mouse->x = x;
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307 mouse->y = y;
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308 }
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309 mouse->xdelta += xrel;
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310 mouse->ydelta += yrel;
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311
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312 /* Move the mouse cursor, if needed */
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diff changeset
313 if (mouse->cursor_shown && !mouse->relative_mode &&
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diff changeset
314 mouse->MoveCursor && mouse->cur_cursor) {
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315 mouse->MoveCursor(mouse->cur_cursor);
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316 }
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diff changeset
317
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parents: 1525
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318 /* Post the event, if desired */
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parents: 1525
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319 posted = 0;
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320 if (SDL_ProcessEvents[SDL_MOUSEMOTION] == SDL_ENABLE) {
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321 SDL_Event event;
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322 event.motion.type = SDL_MOUSEMOTION;
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323 event.motion.which = (Uint8) index;
eef792d31de8 Work in progress. :)
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324 event.motion.state = mouse->buttonstate;
eef792d31de8 Work in progress. :)
Sam Lantinga <slouken@libsdl.org>
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325 event.motion.x = mouse->x;
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326 event.motion.y = mouse->y;
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Sam Lantinga <slouken@libsdl.org>
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327 event.motion.xrel = xrel;
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328 event.motion.yrel = yrel;
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329 event.motion.windowID = mouse->focus;
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330 if ((SDL_EventOK == NULL)
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diff changeset
331 || (*SDL_EventOK) (SDL_EventOKParam, &event)) {
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332 posted = 1;
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333 SDL_PushEvent(&event);
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334 }
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335 }
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336 return posted;
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parents:
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337 }
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338
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339 int
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340 SDL_SendMouseButton(int index, SDL_WindowID windowID, Uint8 state,
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341 Uint8 button)
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342 {
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343 SDL_Mouse *mouse = SDL_GetMouse(index);
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344 int posted;
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345 Uint8 type;
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346
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347 if (!mouse) {
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348 return 0;
eef792d31de8 Work in progress. :)
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349 }
0
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350
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351 if (windowID) {
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352 mouse->focus = windowID;
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353 }
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354
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355 /* Figure out which event to perform */
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parents: 1525
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356 switch (state) {
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357 case SDL_PRESSED:
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358 if (mouse->buttonstate & SDL_BUTTON(button)) {
eef792d31de8 Work in progress. :)
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diff changeset
359 /* Ignore this event, no state change */
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360 return 0;
eef792d31de8 Work in progress. :)
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361 }
eef792d31de8 Work in progress. :)
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diff changeset
362 type = SDL_MOUSEBUTTONDOWN;
eef792d31de8 Work in progress. :)
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363 mouse->buttonstate |= SDL_BUTTON(button);
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parents: 1525
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364 break;
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365 case SDL_RELEASED:
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366 if (!(mouse->buttonstate & SDL_BUTTON(button))) {
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parents: 1668
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367 /* Ignore this event, no state change */
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368 return 0;
eef792d31de8 Work in progress. :)
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parents: 1668
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369 }
eef792d31de8 Work in progress. :)
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370 type = SDL_MOUSEBUTTONUP;
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371 mouse->buttonstate &= ~SDL_BUTTON(button);
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372 break;
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373 default:
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374 /* Invalid state -- bail */
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375 return 0;
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parents: 1525
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376 }
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377
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parents: 1525
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378 /* Post the event, if desired */
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379 posted = 0;
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380 if (SDL_ProcessEvents[type] == SDL_ENABLE) {
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diff changeset
381 SDL_Event event;
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382 event.type = type;
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383 event.button.which = (Uint8) index;
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384 event.button.state = state;
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385 event.button.button = button;
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386 event.button.x = mouse->x;
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diff changeset
387 event.button.y = mouse->y;
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diff changeset
388 event.button.windowID = mouse->focus;
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389 if ((SDL_EventOK == NULL)
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390 || (*SDL_EventOK) (SDL_EventOKParam, &event)) {
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391 posted = 1;
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392 SDL_PushEvent(&event);
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393 }
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parents: 1525
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394 }
1670
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395 return posted;
0
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396 }
74212992fb08 Initial revision
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397
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diff changeset
398 void
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399 SDL_WarpMouseInWindow(SDL_WindowID windowID, int x, int y)
89f7510fe17a Moved the cursor handling into the mouse code.
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400 {
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parents: 1670
diff changeset
401 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
402
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
403 if (!mouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
404 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
405 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
406
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
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407 if (mouse->WarpMouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
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408 mouse->WarpMouse(mouse, windowID, x, y);
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
409 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
410 SDL_SendMouseMotion(SDL_current_mouse, windowID, 0, x, y);
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
411 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
412 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
413
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
414 SDL_Cursor *
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
415 SDL_CreateCursor(const Uint8 * data, const Uint8 * mask,
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
416 int w, int h, int hot_x, int hot_y)
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
417 {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
418 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
419 SDL_Surface *surface;
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parents: 1670
diff changeset
420 SDL_Cursor *cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
421 int x, y;
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
422 Uint32 *pixel;
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parents: 1670
diff changeset
423 Uint8 datab, maskb;
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
424 const Uint32 black = 0xFF000000;
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
425 const Uint32 white = 0xFFFFFFFF;
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
426 const Uint32 transparent = 0x00000000;
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
427
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
428 if (!mouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
429 SDL_SetError("No mice are initialized");
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
430 return NULL;
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
431 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
432
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
433 if (!mouse->CreateCursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
434 SDL_SetError("Current mouse doesn't have cursor support");
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
435 return NULL;
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
436 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
437
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
438 /* Sanity check the hot spot */
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
439 if ((hot_x < 0) || (hot_y < 0) || (hot_x >= w) || (hot_y >= h)) {
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
440 SDL_SetError("Cursor hot spot doesn't lie within cursor");
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
441 return NULL;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
442 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
443
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
444 /* Make sure the width is a multiple of 8 */
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
445 w = ((w + 7) & ~7);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
446
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
447 /* Create the surface from a bitmap */
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
448 surface =
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
449 SDL_CreateRGBSurface(0, w, h, 32, 0x00FF0000, 0x0000FF00, 0x000000FF,
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
450 0xFF000000);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
451 if (!surface) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
452 return NULL;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
453 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
454 for (y = 0; y < h; ++y) {
1720
a1ebb17f9c52 Cleaned up a bunch of warnings, started adding Win32 event support
Sam Lantinga <slouken@libsdl.org>
parents: 1674
diff changeset
455 pixel = (Uint32 *) ((Uint8 *) surface->pixels + y * surface->pitch);
1671
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
456 for (x = 0; x < w; ++x) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
457 if ((x % 8) == 0) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
458 datab = *data++;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
459 maskb = *mask++;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
460 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
461 if (maskb & 0x80) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
462 *pixel++ = (datab & 0x80) ? black : white;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
463 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
464 *pixel++ = (datab & 0x80) ? black : transparent;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
465 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
466 datab <<= 1;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
467 maskb <<= 1;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
468 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
469 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
470
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
471 cursor = mouse->CreateCursor(surface, hot_x, hot_y);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
472 if (cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
473 cursor->mouse = mouse;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
474 cursor->next = mouse->cursors;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
475 mouse->cursors = cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
476 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
477
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
478 SDL_FreeSurface(surface);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
479
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
480 return cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
481 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
482
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
483 /* SDL_SetCursor(NULL) can be used to force the cursor redraw,
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
484 if this is desired for any reason. This is used when setting
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
485 the video mode and when the SDL window gains the mouse focus.
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
486 */
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
487 void
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
488 SDL_SetCursor(SDL_Cursor * cursor)
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
489 {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
490 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
491
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
492 if (!mouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
493 SDL_SetError("No mice are initialized");
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
494 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
495 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
496
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
497 /* Set the new cursor */
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
498 if (cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
499 /* Make sure the cursor is still valid for this mouse */
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
500 SDL_Cursor *found;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
501 for (found = mouse->cursors; found; found = found->next) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
502 if (found == cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
503 break;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
504 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
505 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
506 if (!found) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
507 SDL_SetError("Cursor not associated with the current mouse");
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
508 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
509 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
510 mouse->cur_cursor = cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
511 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
512 cursor = mouse->cur_cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
513 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
514
1722
5daa04d862f1 Added a userdata parameter for event filters.
Sam Lantinga <slouken@libsdl.org>
parents: 1720
diff changeset
515 if (cursor && mouse->cursor_shown && !mouse->relative_mode) {
1671
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
516 if (mouse->ShowCursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
517 mouse->ShowCursor(cursor);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
518 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
519 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
520 if (mouse->ShowCursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
521 mouse->ShowCursor(NULL);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
522 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
523 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
524 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
525
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
526 SDL_Cursor *
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
527 SDL_GetCursor(void)
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
528 {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
529 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
530
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
531 if (!mouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
532 return NULL;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
533 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
534 return mouse->cur_cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
535 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
536
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
537 void
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
538 SDL_FreeCursor(SDL_Cursor * cursor)
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
539 {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
540 SDL_Mouse *mouse;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
541 SDL_Cursor *curr, *prev;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
542
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
543 if (!cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
544 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
545 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
546 mouse = cursor->mouse;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
547
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
548 if (cursor == mouse->def_cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
549 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
550 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
551 if (cursor == mouse->cur_cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
552 SDL_SetCursor(mouse->def_cursor);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
553 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
554
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
555 for (prev = NULL, curr = mouse->cursors; curr;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
556 prev = curr, curr = curr->next) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
557 if (curr == cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
558 if (prev) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
559 prev->next = curr->next;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
560 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
561 mouse->cursors = curr->next;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
562 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
563
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
564 if (mouse->FreeCursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
565 mouse->FreeCursor(curr);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
566 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
567 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
568 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
569 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
570 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
571
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
572 int
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
573 SDL_ShowCursor(int toggle)
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
574 {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
575 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
576 SDL_bool shown;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
577
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
578 if (!mouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
579 return 0;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
580 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
581
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
582 shown = mouse->cursor_shown;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
583 if (toggle >= 0) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
584 if (toggle) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
585 mouse->cursor_shown = SDL_TRUE;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
586 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
587 mouse->cursor_shown = SDL_FALSE;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
588 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
589 if (mouse->cursor_shown != shown) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
590 SDL_SetCursor(NULL);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
591 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
592 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
593 return shown;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
594 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
595
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1525
diff changeset
596 /* vi: set ts=4 sw=4 expandtab: */