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1 #include <stdio.h> |
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2 #include <stdlib.h> |
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3 |
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4 #include "SDL.h" |
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5 |
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6 /* This is an example 16x16 cursor |
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7 top left : black |
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8 top right : inverted color or black |
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9 bottom left: white |
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10 bottom right: transparent |
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11 (swap left and right for different endianness) |
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12 */ |
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13 |
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14 Uint16 cursor_data[16]={ |
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15 0xffff, |
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16 0xffff, |
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17 0xffff, |
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18 0xffff, |
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19 |
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20 0xffff, |
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21 0xffff, |
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22 0xffff, |
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23 0xffff, |
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24 |
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25 0x0000, |
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26 0x0000, |
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27 0x0000, |
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28 0x0000, |
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29 |
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30 0x0000, |
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31 0x0000, |
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32 0x0000, |
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33 0x0000 |
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34 }; |
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35 |
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36 Uint16 cursor_mask[16]={ |
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37 0xff00, |
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38 0xff00, |
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39 0xff00, |
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40 0xff00, |
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41 |
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42 0xff00, |
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43 0xff00, |
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44 0xff00, |
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45 0xff00, |
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46 |
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47 0xff00, |
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48 0xff00, |
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49 0xff00, |
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50 0xff00, |
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51 |
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52 0xff00, |
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53 0xff00, |
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54 0xff00, |
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55 0xff00 |
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56 }; |
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57 |
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58 /* another test cursor: smaller than 16x16, and with an odd height */ |
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59 |
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60 Uint8 small_cursor_data[11] = { 0x00, 0x18, 0x08, 0x38, 0x44, 0x54, 0x44, 0x38, 0x20, 0x20, 0x00 }; |
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61 Uint8 small_cursor_mask[11] = { 0x3C, 0x3C, 0x3C, 0x7C, 0xC6, 0xC6, 0xC6, 0x7C, 0x78, 0x70, 0x70 }; |
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62 |
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63 /* XPM */ |
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64 static const char *arrow[] = { |
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65 /* width height num_colors chars_per_pixel */ |
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66 " 32 32 3 1", |
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67 /* colors */ |
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68 "X c #000000", |
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69 ". c #ffffff", |
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70 " c None", |
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71 /* pixels */ |
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72 "X ", |
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73 "XX ", |
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74 "X.X ", |
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75 "X..X ", |
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76 "X...X ", |
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77 "X....X ", |
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78 "X.....X ", |
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79 "X......X ", |
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80 "X.......X ", |
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81 "X........X ", |
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82 "X.....XXXXX ", |
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83 "X..X..X ", |
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84 "X.X X..X ", |
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85 "XX X..X ", |
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86 "X X..X ", |
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87 " X..X ", |
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88 " X..X ", |
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89 " X..X ", |
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90 " XX ", |
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91 " ", |
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92 " ", |
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93 " ", |
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94 " ", |
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95 " ", |
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96 " ", |
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97 " ", |
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98 " ", |
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99 " ", |
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100 " ", |
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101 " ", |
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102 " ", |
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103 " ", |
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104 "0,0" |
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105 }; |
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106 |
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107 static SDL_Cursor *create_arrow_cursor() |
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108 { |
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109 int i, row, col; |
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110 Uint8 data[4*32]; |
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111 Uint8 mask[4*32]; |
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112 int hot_x, hot_y; |
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113 |
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114 i = -1; |
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115 for ( row=0; row<32; ++row ) { |
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116 for ( col=0; col<32; ++col ) { |
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117 if ( col % 8 ) { |
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118 data[i] <<= 1; |
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119 mask[i] <<= 1; |
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120 } else { |
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121 ++i; |
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122 data[i] = mask[i] = 0; |
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123 } |
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124 switch (arrow[4+row][col]) { |
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125 case 'X': |
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126 data[i] |= 0x01; |
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127 mask[i] |= 0x01; |
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128 break; |
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129 case '.': |
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130 mask[i] |= 0x01; |
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131 break; |
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132 case ' ': |
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133 break; |
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134 } |
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135 } |
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136 } |
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137 sscanf(arrow[4+row], "%d,%d", &hot_x, &hot_y); |
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138 return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y); |
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139 } |
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140 |
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141 |
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142 int main(int argc, char *argv[]) |
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143 { |
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144 SDL_Surface *screen; |
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145 SDL_bool quit = SDL_FALSE, first_time = SDL_TRUE; |
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146 SDL_Cursor *cursor[3]; |
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147 int current; |
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148 |
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149 /* Load the SDL library */ |
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150 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { |
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151 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); |
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152 return(1); |
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153 } |
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154 |
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155 screen = SDL_SetVideoMode(320,200,8,SDL_ANYFORMAT); |
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156 if (screen==NULL) { |
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157 fprintf(stderr, "Couldn't initialize video mode: %s\n",SDL_GetError()); |
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158 return(1); |
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159 } |
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160 |
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161 SDL_FillRect(screen, NULL, 0x664422); |
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162 |
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163 cursor[0] = SDL_CreateCursor((Uint8 *)cursor_data, (Uint8 *)cursor_mask, |
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164 16, 16, 8, 8); |
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165 if (cursor[0]==NULL) { |
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166 fprintf(stderr, "Couldn't initialize test cursor: %s\n",SDL_GetError()); |
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167 SDL_Quit(); |
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168 return(1); |
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169 } |
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170 cursor[1] = create_arrow_cursor(); |
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171 if (cursor[1]==NULL) { |
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172 fprintf(stderr, "Couldn't initialize arrow cursor: %s\n",SDL_GetError()); |
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173 SDL_FreeCursor(cursor[0]); |
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174 SDL_Quit(); |
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175 return(1); |
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176 } |
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177 cursor[2] = SDL_CreateCursor(small_cursor_data, small_cursor_mask, |
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178 8, 11, 3, 5); |
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179 if (cursor[2]==NULL) { |
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180 fprintf(stderr, "Couldn't initialize test cursor: %s\n",SDL_GetError()); |
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181 SDL_Quit(); |
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182 return(1); |
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183 } |
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184 |
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185 current = 0; |
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186 SDL_SetCursor(cursor[current]); |
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187 |
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188 while (!quit) { |
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189 SDL_Event event; |
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190 while (SDL_PollEvent(&event)) { |
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191 switch(event.type) { |
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192 case SDL_MOUSEBUTTONDOWN: |
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193 current = (current + 1)%3; |
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194 SDL_SetCursor(cursor[current]); |
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195 break; |
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196 case SDL_KEYDOWN: |
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197 if (event.key.keysym.sym == SDLK_ESCAPE) { |
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198 quit = SDL_TRUE; |
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199 } |
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200 break; |
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201 case SDL_QUIT: |
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202 quit = SDL_TRUE; |
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203 break; |
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204 } |
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205 } |
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206 SDL_Flip(screen); |
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207 SDL_Delay(1); |
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208 } |
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209 |
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210 SDL_FreeCursor(cursor[0]); |
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211 SDL_FreeCursor(cursor[1]); |
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212 SDL_FreeCursor(cursor[2]); |
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213 |
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214 SDL_Quit(); |
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215 return(0); |
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216 } |