e14743d1 |
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 | } |