Mercurial > sdl-ios-xcode

annotate src/events/SDL_mouse.c @ 1674:7688a73b25b1 SDL-1.3

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Finishing up keyboard code revamp, at least for now...
author Sam Lantinga <slouken@libsdl.org>
date Sun, 11 Jun 2006 05:27:10 +0000
parents 89f7510fe17a
children a1ebb17f9c52
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 SDL_Cursor *cursor;
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57 int selected_mouse;
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58
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59 /* Add the mouse to the list of mice */
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60 if (index < 0 || index >= SDL_num_mice || SDL_mice[index]) {
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61 mice =
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62 (SDL_Mouse **) SDL_realloc(SDL_mice,
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63 (SDL_num_mice + 1) * sizeof(*mice));
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64 if (!mice) {
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65 SDL_OutOfMemory();
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66 return -1;
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67 }
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68
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69 SDL_mice = mice;
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70 index = SDL_num_mice++;
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71 }
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72 SDL_mice[index] = (SDL_Mouse *) SDL_malloc(sizeof(*SDL_mice[index]));
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73 if (!SDL_mice[index]) {
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74 SDL_OutOfMemory();
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75 return -1;
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76 }
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77 *SDL_mice[index] = *mouse;
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78
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79 /* Create the default cursor for the mouse */
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80 SDL_mice[index]->cursor_shown = SDL_TRUE;
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81 selected_mouse = SDL_SelectMouse(index);
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82 SDL_mice[index]->cur_cursor = NULL;
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83 SDL_mice[index]->def_cursor =
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84 SDL_CreateCursor(default_cdata, default_cmask, DEFAULT_CWIDTH,
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85 DEFAULT_CHEIGHT, DEFAULT_CHOTX, DEFAULT_CHOTY);
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86 SDL_SetCursor(SDL_mice[index]->def_cursor);
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87 SDL_SelectMouse(selected_mouse);
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88
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89 return index;
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90 }
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91
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92 void
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93 SDL_DelMouse(int index)
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94 {
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95 SDL_Mouse *mouse = SDL_GetMouse(index);
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96
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97 if (!mouse) {
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98 return;
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99 }
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100
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101 mouse->def_cursor = NULL;
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102 while (mouse->cursors) {
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103 SDL_FreeCursor(mouse->cursors);
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104 }
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105
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106 if (mouse->FreeMouse) {
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107 mouse->FreeMouse(mouse);
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108 }
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109 SDL_free(mouse);
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110
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111 SDL_mice[index] = NULL;
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112 }
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113
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114 void
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115 SDL_ResetMouse(int index)
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116 {
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117 SDL_Mouse *mouse = SDL_GetMouse(index);
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118
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119 if (!mouse) {
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120 return;
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121 }
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122
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123 /* FIXME */
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124 }
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125
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126 void
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127 SDL_MouseQuit(void)
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128 {
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129 int i;
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130
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131 for (i = 0; i < SDL_num_mice; ++i) {
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132 SDL_DelMouse(i);
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133 }
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134 SDL_num_mice = 0;
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135 SDL_current_mouse = 0;
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136
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137 if (SDL_mice) {
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138 SDL_free(SDL_mice);
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139 SDL_mice = NULL;
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140 }
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141 }
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142
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143 int
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144 SDL_GetNumMice(void)
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145 {
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146 return SDL_num_mice;
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147 }
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148
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149 int
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150 SDL_SelectMouse(int index)
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151 {
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152 if (index >= 0 && index < SDL_num_mice) {
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153 SDL_current_mouse = index;
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154 }
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155 return SDL_current_mouse;
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156 }
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157
eef792d31de8 Work in progress. :)
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158 SDL_WindowID
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159 SDL_GetMouseFocusWindow()
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160 {
eef792d31de8 Work in progress. :)
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161 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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162
eef792d31de8 Work in progress. :)
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163 if (!mouse) {
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164 return 0;
eef792d31de8 Work in progress. :)
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165 }
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166 return mouse->focus;
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167 }
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168
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169 Uint8
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170 SDL_GetMouseState(int *x, int *y)
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171 {
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172 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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173
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174 if (!mouse) {
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175 if (x) {
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176 *x = 0;
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177 }
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178 if (y) {
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179 *y = 0;
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180 }
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181 return 0;
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182 }
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183
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184 if (x) {
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185 *x = mouse->x;
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186 }
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187 if (y) {
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188 *y = mouse->y;
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189 }
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190 return mouse->buttonstate;
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191 }
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192
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193 Uint8
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194 SDL_GetRelativeMouseState(int *x, int *y)
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195 {
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196 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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197
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198 if (!mouse) {
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199 if (x) {
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200 *x = 0;
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201 }
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202 if (y) {
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203 *y = 0;
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204 }
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205 return 0;
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206 }
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207
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208 if (x) {
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209 *x = mouse->xdelta;
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210 }
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211 if (y) {
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212 *y = mouse->ydelta;
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213 }
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214 mouse->xdelta = 0;
eef792d31de8 Work in progress. :)
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215 mouse->ydelta = 0;
eef792d31de8 Work in progress. :)
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216 return mouse->buttonstate;
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217 }
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218
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219 int
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220 SDL_SendMouseMotion(int index, SDL_WindowID windowID, int relative, int x,
eef792d31de8 Work in progress. :)
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diff changeset
221 int y)
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222 {
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223 SDL_Mouse *mouse = SDL_GetMouse(index);
eef792d31de8 Work in progress. :)
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224 int posted;
eef792d31de8 Work in progress. :)
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225 int xrel;
eef792d31de8 Work in progress. :)
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226 int yrel;
eef792d31de8 Work in progress. :)
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227
eef792d31de8 Work in progress. :)
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diff changeset
228 if (!mouse) {
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229 return 0;
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230 }
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231
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diff changeset
232 if (windowID) {
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233 mouse->focus = windowID;
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234 }
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235
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236 if (relative) {
eef792d31de8 Work in progress. :)
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diff changeset
237 /* Push the cursor around */
eef792d31de8 Work in progress. :)
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diff changeset
238 xrel = x;
eef792d31de8 Work in progress. :)
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diff changeset
239 yrel = y;
eef792d31de8 Work in progress. :)
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diff changeset
240 x = (mouse->x + xrel);
eef792d31de8 Work in progress. :)
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diff changeset
241 y = (mouse->y + yrel);
eef792d31de8 Work in progress. :)
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diff changeset
242 } else {
eef792d31de8 Work in progress. :)
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diff changeset
243 xrel = x - mouse->x;
eef792d31de8 Work in progress. :)
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244 yrel = y - mouse->y;
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245 }
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246
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247 /* Drop events that don't change state */
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diff changeset
248 if (!xrel && !yrel) {
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diff changeset
249 #if 0
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250 printf("Mouse event didn't change state - dropped!\n");
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251 #endif
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252 return 0;
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253 }
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254
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255 /* Update internal mouse state */
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256 mouse->x = x;
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
257 mouse->y = y;
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diff changeset
258 mouse->xdelta += xrel;
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259 mouse->ydelta += yrel;
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260
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261 /* Move the mouse cursor, if needed */
89f7510fe17a Moved the cursor handling into the mouse code.
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262 if (mouse->MoveCursor && mouse->cur_cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
263 mouse->MoveCursor(mouse->cur_cursor);
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
264 }
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
265
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266 /* Post the event, if desired */
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267 posted = 0;
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268 if (SDL_ProcessEvents[SDL_MOUSEMOTION] == SDL_ENABLE) {
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269 SDL_Event event;
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diff changeset
270 event.motion.type = SDL_MOUSEMOTION;
eef792d31de8 Work in progress. :)
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diff changeset
271 event.motion.which = (Uint8) index;
eef792d31de8 Work in progress. :)
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diff changeset
272 event.motion.state = mouse->buttonstate;
eef792d31de8 Work in progress. :)
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diff changeset
273 event.motion.x = mouse->x;
eef792d31de8 Work in progress. :)
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diff changeset
274 event.motion.y = mouse->y;
eef792d31de8 Work in progress. :)
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diff changeset
275 event.motion.xrel = xrel;
eef792d31de8 Work in progress. :)
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diff changeset
276 event.motion.yrel = yrel;
eef792d31de8 Work in progress. :)
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diff changeset
277 event.motion.windowID = mouse->focus;
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278 if ((SDL_EventOK == NULL) || (*SDL_EventOK) (&event)) {
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diff changeset
279 posted = 1;
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diff changeset
280 SDL_PushEvent(&event);
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281 }
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282 }
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diff changeset
283 return posted;
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diff changeset
284 }
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diff changeset
285
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286 int
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diff changeset
287 SDL_SendMouseButton(int index, SDL_WindowID windowID, Uint8 state,
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
288 Uint8 button)
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diff changeset
289 {
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diff changeset
290 SDL_Mouse *mouse = SDL_GetMouse(index);
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diff changeset
291 int posted;
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diff changeset
292 Uint8 type;
0
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diff changeset
293
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diff changeset
294 if (!mouse) {
eef792d31de8 Work in progress. :)
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diff changeset
295 return 0;
eef792d31de8 Work in progress. :)
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diff changeset
296 }
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diff changeset
297
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diff changeset
298 if (windowID) {
eef792d31de8 Work in progress. :)
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diff changeset
299 mouse->focus = windowID;
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diff changeset
300 }
0
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diff changeset
301
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302 /* Figure out which event to perform */
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diff changeset
303 switch (state) {
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304 case SDL_PRESSED:
1670
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diff changeset
305 if (mouse->buttonstate & SDL_BUTTON(button)) {
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diff changeset
306 /* Ignore this event, no state change */
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diff changeset
307 return 0;
eef792d31de8 Work in progress. :)
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parents: 1668
diff changeset
308 }
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diff changeset
309 type = SDL_MOUSEBUTTONDOWN;
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diff changeset
310 mouse->buttonstate |= SDL_BUTTON(button);
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diff changeset
311 break;
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diff changeset
312 case SDL_RELEASED:
1670
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diff changeset
313 if (!(mouse->buttonstate & SDL_BUTTON(button))) {
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diff changeset
314 /* Ignore this event, no state change */
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diff changeset
315 return 0;
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diff changeset
316 }
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diff changeset
317 type = SDL_MOUSEBUTTONUP;
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diff changeset
318 mouse->buttonstate &= ~SDL_BUTTON(button);
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diff changeset
319 break;
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diff changeset
320 default:
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diff changeset
321 /* Invalid state -- bail */
1670
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diff changeset
322 return 0;
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323 }
0
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parents:
diff changeset
324
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325 /* Post the event, if desired */
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326 posted = 0;
1670
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diff changeset
327 if (SDL_ProcessEvents[type] == SDL_ENABLE) {
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diff changeset
328 SDL_Event event;
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diff changeset
329 event.type = type;
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diff changeset
330 event.button.which = (Uint8) index;
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331 event.button.state = state;
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332 event.button.button = button;
1670
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diff changeset
333 event.button.x = mouse->x;
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diff changeset
334 event.button.y = mouse->y;
1674
7688a73b25b1 Finishing up keyboard code revamp, at least for now...
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diff changeset
335 event.button.windowID = mouse->focus;
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336 if ((SDL_EventOK == NULL) || (*SDL_EventOK) (&event)) {
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337 posted = 1;
1668
4da1ee79c9af more tweaking indent options
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diff changeset
338 SDL_PushEvent(&event);
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339 }
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diff changeset
340 }
1670
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diff changeset
341 return posted;
0
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parents:
diff changeset
342 }
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343
1671
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344 void
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diff changeset
345 SDL_WarpMouseInWindow(SDL_WindowID windowID, int x, int y)
89f7510fe17a Moved the cursor handling into the mouse code.
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346 {
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diff changeset
347 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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348
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diff changeset
349 if (!mouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
350 return;
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
351 }
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
352
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
353 if (mouse->WarpMouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
354 mouse->WarpMouse(mouse, windowID, x, y);
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
355 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
356 SDL_SendMouseMotion(SDL_current_mouse, windowID, 0, x, y);
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
357 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
358 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
359
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
360 SDL_Cursor *
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
361 SDL_CreateCursor(const Uint8 * data, const Uint8 * mask,
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
362 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
363 {
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
364 SDL_Mouse *mouse = SDL_GetMouse(SDL_current_mouse);
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diff changeset
365 SDL_Surface *surface;
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diff changeset
366 SDL_Cursor *cursor;
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diff changeset
367 int x, y;
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diff changeset
368 Uint32 *pixel;
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diff changeset
369 Uint8 datab, maskb;
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diff changeset
370 const Uint32 black = 0xFF000000;
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
371 const Uint32 white = 0xFFFFFFFF;
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diff changeset
372 const Uint32 transparent = 0x00000000;
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diff changeset
373
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
374 if (!mouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
375 SDL_SetError("No mice are initialized");
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
376 return NULL;
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
377 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
378
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
379 if (!mouse->CreateCursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
380 SDL_SetError("Current mouse doesn't have cursor support");
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
381 return NULL;
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
382 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
383
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
384 /* Sanity check the hot spot */
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
385 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
386 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
387 return NULL;
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
388 }
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
389
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
390 /* Make sure the width is a multiple of 8 */
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
391 w = ((w + 7) & ~7);
89f7510fe17a Moved the cursor handling into the mouse code.
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diff changeset
392
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
393 /* Create the surface from a bitmap */
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
394 surface =
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
395 SDL_CreateRGBSurface(0, w, h, 32, 0x00FF0000, 0x0000FF00, 0x000000FF,
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
396 0xFF000000);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
397 if (!surface) {
89f7510fe17a Moved the cursor handling into the mouse code.
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parents: 1670
diff changeset
398 return NULL;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
399 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
400 for (y = 0; y < h; ++y) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
401 pixel =
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
402 (Uint32 *) ((Uint8 *) surface->pixels + y * surface->pitch +
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
403 x * 4);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
404 for (x = 0; x < w; ++x) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
405 if ((x % 8) == 0) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
406 datab = *data++;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
407 maskb = *mask++;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
408 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
409 if (maskb & 0x80) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
410 *pixel++ = (datab & 0x80) ? black : white;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
411 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
412 *pixel++ = (datab & 0x80) ? black : transparent;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
413 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
414 datab <<= 1;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
415 maskb <<= 1;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
416 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
417 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
418
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
419 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
420 if (cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
421 cursor->mouse = mouse;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
422 cursor->next = mouse->cursors;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
423 mouse->cursors = cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
424 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
425
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
426 SDL_FreeSurface(surface);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
427
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
428 return cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
429 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
430
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
431 /* 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
432 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
433 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
434 */
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
435 void
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
436 SDL_SetCursor(SDL_Cursor * cursor)
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
437 {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
438 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
439
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
440 if (!mouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
441 SDL_SetError("No mice are initialized");
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
442 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
443 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
444
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
445 /* Set the new cursor */
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
446 if (cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
447 /* 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
448 SDL_Cursor *found;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
449 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
450 if (found == cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
451 break;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
452 }
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 if (!found) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
455 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
456 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
457 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
458 mouse->cur_cursor = cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
459 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
460 cursor = mouse->cur_cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
461 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
462
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
463 if (cursor && mouse->cursor_shown) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
464 if (mouse->ShowCursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
465 mouse->ShowCursor(cursor);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
466 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
467 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
468 if (mouse->ShowCursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
469 mouse->ShowCursor(NULL);
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 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
472 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
473
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
474 SDL_Cursor *
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
475 SDL_GetCursor(void)
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 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
478
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
479 if (!mouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
480 return NULL;
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 return mouse->cur_cursor;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
483 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
484
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
485 void
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
486 SDL_FreeCursor(SDL_Cursor * cursor)
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
487 {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
488 SDL_Mouse *mouse;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
489 SDL_Cursor *curr, *prev;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
490
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
491 if (!cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
492 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
493 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
494 mouse = cursor->mouse;
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 if (cursor == mouse->def_cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
497 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
498 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
499 if (cursor == mouse->cur_cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
500 SDL_SetCursor(mouse->def_cursor);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
501 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
502
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
503 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
504 prev = curr, curr = curr->next) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
505 if (curr == cursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
506 if (prev) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
507 prev->next = curr->next;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
508 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
509 mouse->cursors = curr->next;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
510 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
511
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
512 if (mouse->FreeCursor) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
513 mouse->FreeCursor(curr);
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
514 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
515 return;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
516 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
517 }
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
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
520 int
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
521 SDL_ShowCursor(int toggle)
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 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
524 SDL_bool shown;
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 if (!mouse) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
527 return 0;
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
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
530 shown = mouse->cursor_shown;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
531 if (toggle >= 0) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
532 if (toggle) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
533 mouse->cursor_shown = SDL_TRUE;
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
534 } else {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
535 mouse->cursor_shown = SDL_FALSE;
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 if (mouse->cursor_shown != shown) {
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
538 SDL_SetCursor(NULL);
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 }
89f7510fe17a Moved the cursor handling into the mouse code.
Sam Lantinga <slouken@libsdl.org>
parents: 1670
diff changeset
541 return shown;
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
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
544 /* vi: set ts=4 sw=4 expandtab: */