1 #include <stdio.h> 2 #include <stdlib.h> 3 4 #include "SDL.h" 5 6 /* This is an example 16x16 cursor 7 top left : black 8 top right : inverted color or black 9 bottom left: white 10 bottom right: transparent 11 (swap left and right for different endianness) 12 */ 13 14 Uint16 cursor_data[16]={ 15 0xffff, 16 0xffff, 17 0xffff, 18 0xffff, 19 20 0xffff, 21 0xffff, 22 0xffff, 23 0xffff, 24 25 0x0000, 26 0x0000, 27 0x0000, 28 0x0000, 29 30 0x0000, 31 0x0000, 32 0x0000, 33 0x0000 34 }; 35 36 Uint16 cursor_mask[16]={ 37 0xff00, 38 0xff00, 39 0xff00, 40 0xff00, 41 42 0xff00, 43 0xff00, 44 0xff00, 45 0xff00, 46 47 0xff00, 48 0xff00, 49 0xff00, 50 0xff00, 51 52 0xff00, 53 0xff00, 54 0xff00, 55 0xff00 56 }; 57 58 /* another test cursor: smaller than 16x16, and with an odd height */ 59 60 Uint8 small_cursor_data[11] = { 0x00, 0x18, 0x08, 0x38, 0x44, 0x54, 0x44, 0x38, 0x20, 0x20, 0x00 }; 61 Uint8 small_cursor_mask[11] = { 0x3C, 0x3C, 0x3C, 0x7C, 0xC6, 0xC6, 0xC6, 0x7C, 0x78, 0x70, 0x70 }; 62 63 /* XPM */ 64 static const char *arrow[] = { 65 /* width height num_colors chars_per_pixel */ 66 " 32 32 3 1", 67 /* colors */ 68 "X c #000000", 69 ". c #ffffff", 70 " c None", 71 /* pixels */ 72 "X ", 73 "XX ", 74 "X.X ", 75 "X..X ", 76 "X...X ", 77 "X....X ", 78 "X.....X ", 79 "X......X ", 80 "X.......X ", 81 "X........X ", 82 "X.....XXXXX ", 83 "X..X..X ", 84 "X.X X..X ", 85 "XX X..X ", 86 "X X..X ", 87 " X..X ", 88 " X..X ", 89 " X..X ", 90 " XX ", 91 " ", 92 " ", 93 " ", 94 " ", 95 " ", 96 " ", 97 " ", 98 " ", 99 " ", 100 " ", 101 " ", 102 " ", 103 " ", 104 "0,0" 105 }; 106 107 static SDL_Cursor *create_arrow_cursor() 108 { 109 int i, row, col; 110 Uint8 data[4*32]; 111 Uint8 mask[4*32]; 112 int hot_x, hot_y; 113 114 i = -1; 115 for ( row=0; row<32; ++row ) { 116 for ( col=0; col<32; ++col ) { 117 if ( col % 8 ) { 118 data[i] <<= 1; 119 mask[i] <<= 1; 120 } else { 121 ++i; 122 data[i] = mask[i] = 0; 123 } 124 switch (arrow[4+row][col]) { 125 case 'X': 126 data[i] |= 0x01; 127 mask[i] |= 0x01; 128 break; 129 case '.': 130 mask[i] |= 0x01; 131 break; 132 case ' ': 133 break; 134 } 135 } 136 } 137 sscanf(arrow[4+row], "%d,%d", &hot_x, &hot_y); 138 return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y); 139 } 140 141 142 int main(int argc, char *argv[]) 143 { 144 SDL_Surface *screen; 145 SDL_bool quit = SDL_FALSE, first_time = SDL_TRUE; 146 SDL_Cursor *cursor[3]; 147 int current; 148 149 /* Load the SDL library */ 150 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { 151 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); 152 return(1); 153 } 154 155 screen = SDL_SetVideoMode(320,200,8,SDL_ANYFORMAT); 156 if (screen==NULL) { 157 fprintf(stderr, "Couldn't initialize video mode: %s\n",SDL_GetError()); 158 return(1); 159 } 160 161 SDL_FillRect(screen, NULL, 0x664422); 162 163 cursor[0] = SDL_CreateCursor((Uint8 *)cursor_data, (Uint8 *)cursor_mask, 164 16, 16, 8, 8); 165 if (cursor[0]==NULL) { 166 fprintf(stderr, "Couldn't initialize test cursor: %s\n",SDL_GetError()); 167 SDL_Quit(); 168 return(1); 169 } 170 cursor[1] = create_arrow_cursor(); 171 if (cursor[1]==NULL) { 172 fprintf(stderr, "Couldn't initialize arrow cursor: %s\n",SDL_GetError()); 173 SDL_FreeCursor(cursor[0]); 174 SDL_Quit(); 175 return(1); 176 } 177 cursor[2] = SDL_CreateCursor(small_cursor_data, small_cursor_mask, 178 8, 11, 3, 5); 179 if (cursor[2]==NULL) { 180 fprintf(stderr, "Couldn't initialize test cursor: %s\n",SDL_GetError()); 181 SDL_Quit(); 182 return(1); 183 } 184 185 current = 0; 186 SDL_SetCursor(cursor[current]); 187 188 while (!quit) { 189 SDL_Event event; 190 while (SDL_PollEvent(&event)) { 191 switch(event.type) { 192 case SDL_MOUSEBUTTONDOWN: 193 current = (current + 1)%3; 194 SDL_SetCursor(cursor[current]); 195 break; 196 case SDL_KEYDOWN: 197 if (event.key.keysym.sym == SDLK_ESCAPE) { 198 quit = SDL_TRUE; 199 } 200 break; 201 case SDL_QUIT: 202 quit = SDL_TRUE; 203 break; 204 } 205 } 206 SDL_Flip(screen); 207 SDL_Delay(1); 208 } 209 210 SDL_FreeCursor(cursor[0]); 211 SDL_FreeCursor(cursor[1]); 212 SDL_FreeCursor(cursor[2]); 213 214 SDL_Quit(); 215 return(0); 216 } 217
