Mercurial > sdl-ios-xcode
annotate src/video/gem/SDL_gemmouse.c @ 297:f6ffac90895c
Updated copyright information for 2002
author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 06 Mar 2002 11:23:08 +0000 |
parents | c5010ab8ba35 |
children | 189a6a3416c7 |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Library General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Library General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Library General Public |
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16 License along with this library; if not, write to the Free |
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 |
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23 #ifdef SAVE_RCSID |
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24 static char rcsid = |
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25 "@(#) $Id$"; |
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26 #endif |
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27 |
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28 /* |
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29 * GEM Mouse manager |
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30 * |
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31 * Patrice Mandin |
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32 */ |
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33 |
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34 #include <stdlib.h> |
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35 |
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36 #include <gem.h> |
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37 |
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38 #include "SDL_error.h" |
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39 #include "SDL_mouse.h" |
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40 #include "SDL_events_c.h" |
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41 #include "SDL_cursor_c.h" |
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42 #include "SDL_gemmouse_c.h" |
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43 |
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44 /* Defines */ |
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45 |
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46 #define MAXCURWIDTH 16 |
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47 #define MAXCURHEIGHT 16 |
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48 |
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49 /* The implementation dependent data for the window manager cursor */ |
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50 struct WMcursor { |
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51 MFORM *mform_p; |
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52 }; |
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53 |
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54 |
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55 void GEM_FreeWMCursor(_THIS, WMcursor *cursor) |
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56 { |
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57 if (cursor == NULL) |
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58 return; |
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59 |
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60 graf_mouse(ARROW, NULL); |
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61 |
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62 if (cursor->mform_p != NULL) |
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63 free(cursor->mform_p); |
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64 |
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65 free(cursor); |
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66 } |
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67 |
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68 WMcursor *GEM_CreateWMCursor(_THIS, |
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69 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) |
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70 { |
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71 WMcursor *cursor; |
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72 MFORM *new_mform; |
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73 int i; |
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74 |
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75 /* Check the size */ |
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76 if ( (w > MAXCURWIDTH) || (h > MAXCURHEIGHT) ) { |
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77 SDL_SetError("Only cursors of dimension (%dx%d) are allowed", |
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78 MAXCURWIDTH, MAXCURHEIGHT); |
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79 return(NULL); |
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80 } |
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81 |
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82 /* Allocate the cursor memory */ |
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83 cursor = (WMcursor *)malloc(sizeof(WMcursor)); |
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84 if ( cursor == NULL ) { |
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85 SDL_OutOfMemory(); |
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86 return(NULL); |
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87 } |
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88 |
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89 /* Allocate mform */ |
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90 new_mform = (MFORM *)malloc(sizeof(MFORM)); |
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91 if (new_mform == NULL) { |
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92 free(cursor); |
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93 SDL_OutOfMemory(); |
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94 return(NULL); |
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95 } |
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96 |
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97 cursor->mform_p = new_mform; |
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98 |
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99 new_mform->mf_xhot = hot_x; |
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100 new_mform->mf_yhot = hot_y; |
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101 new_mform->mf_nplanes = 1; |
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102 new_mform->mf_fg = 0; |
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103 new_mform->mf_bg = 1; |
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104 |
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105 for (i=0;i<MAXCURHEIGHT;i++) |
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106 { |
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107 new_mform->mf_mask[i]=0; |
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108 new_mform->mf_data[i]=0; |
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109 } |
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110 |
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111 if (w<=8) { |
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112 for (i=0;i<h;i++) |
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113 { |
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114 new_mform->mf_mask[i]= mask[i]<<8; |
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115 new_mform->mf_data[i]= data[i]<<8; |
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116 } |
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117 } else { |
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118 for (i=0;i<h;i++) |
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119 { |
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120 new_mform->mf_mask[i]= mask[i<<1]<<8 | mask[(i<<1)+1]; |
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121 new_mform->mf_data[i]= data[i<<1]<<8 | data[(i<<1)+1]; |
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122 } |
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123 } |
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124 |
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125 return cursor; |
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126 } |
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127 |
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128 int GEM_ShowWMCursor(_THIS, WMcursor *cursor) |
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129 { |
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130 if (cursor == NULL) { |
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131 graf_mouse(M_OFF, NULL); |
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132 } else if (cursor->mform_p) { |
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133 graf_mouse(USER_DEF, cursor->mform_p); |
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134 } |
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135 |
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136 return 1; |
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137 } |
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138 |
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139 void GEM_WarpWMCursor(_THIS, Uint16 x, Uint16 y) |
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140 { |
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141 EVNTREC warpevent; |
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142 |
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143 warpevent.ap_event = APPEVNT_MOUSE; |
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144 warpevent.ap_value = (y << 16) | x; |
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145 |
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146 appl_tplay(&warpevent, 1, 1000); |
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147 } |
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148 |
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149 void GEM_CheckMouseMode(_THIS) |
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150 { |
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151 /* If the mouse is hidden and input is grabbed, we use relative mode */ |
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152 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && |
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153 (this->input_grab != SDL_GRAB_OFF) ) { |
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154 GEM_mouse_relative = SDL_TRUE; |
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155 } else { |
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156 GEM_mouse_relative = SDL_FALSE; |
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157 } |
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158 } |